LC320EM1

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LCD TVchassis FL10.3

SERVICE MANUALContents

32 LC320EM1 EMERSON (Serial No. : DS1A**********)




32 LC320EM1 EMERSON (Serial No. : DS5A**********)32 LC320EM1 EMERSON (Serial No. : DS6A**********)

32 LC320SL1 SYLVANIA

32 32MF330B/F7 MAGNAVOX

32 LC320SS1 SYLVANIA

32 32MF360B/F7 MAGNAVOX

2010 Funai Electric Co., Ltd.

All rights reserved. No part of this manual may be reproduced, copied, transmitted, disseminated, transcribed,downloaded or stored in any storage medium, in any form or for any purpose without the express prior writtenconsent of Funai. Furthermore, any unauthorized commercial distribution of this manual or any revision heretois strictly prohibited.

Information in this document is subject to change without notice. Funai reserves the right to change the contentherein without the obligation to notify any person or organization of such changes.

with the design is a registered trademark of Funai Electric Co., Ltd and may not be used in any waywithout the express written consent of Funai. All other trademarks used herein remain the exclusive property oftheir respective owners. Nothing contained in this manual should be construed as granting, by implication orotherwise, any license or right to use any of the trademarks displayed herein. Misuse of any trademarks or anyother content in this manual is strictly prohibited. Funai shall aggressively enforce its intellectual property rightsto the fullest extent of the law.

A01F4/F3/F0/FF/FH/FA/F1/F5/FJ/FGUH100423

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IMPORTANT SAFETY NOTICE

Proper service and repair is important to the safe, reliable operation of all

Funai Equipment. The service procedures recommended by Funai and

described in this service manual are effective methods of performing

service operations. Some of these service special tools should be used

when and as recommended.It is important to note that this service manual contains various CAUTIONS

and NOTICES which should be carefully read in order to minimize the risk

of personal injury to service personnel. The possibility exists that improper

service methods may damage the equipment. It also is important to

understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE.

Funai could not possibly know, evaluate and advice the service trade of all

conceivable ways in which service might be done or of the possible

hazardous consequences of each way. Consequently, Funai has not

undertaken any such broad evaluation. Accordingly, a servicer who uses aservice procedure or tool which is not recommended by Funai must first

use all precautions thoroughly so that neither his safety nor the safe

operation of the equipment will be jeopardized by the service method

selected.

The LCD panel is manufactured to provide many years of useful life.

Occasionally a few non active pixels may appear as a tiny spec of color.

This is not to be considered a defect in the LCD screen.

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TABLE OF CONTENTS

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Cabinet Disassembly Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1How to Initialize the LCD TV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1Block Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1Schematic Diagrams / CBA and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1

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4/901-1 FL10.3SP

SPECIFICATIONS

< TUNER / NTSC >

ANT. Input ---------------------- 75 Unbal., F type

< TUNER / ATSC >

< LCD PANEL >

< VIDEO >

< AUDIO >

All items are measured across 8 load at speaker output terminal with L.P.F.

Description Condition Unit Nominal Limit

1. AFT Pull-In Range --- MHz 2.3 2.1

2. Synchronizing Sens.TV.ch.4

CA.ch.31CA.ch.87

dBdBdB

181818

202023


1. Received Freq. Range (-28dBm) --- kHz --- 100

2. ATSC Dynamic Range (min / max)ch.4ch.10ch.41

dBmdBmdBm

---------

-76/0-76/0

-76/+4


1. Native Pixel Resolution HorizontalVerticalpixelspixels

1366768

------

2. Brightness (w / filter) --- cd/m2 310 ---

3. Viewing Angle HorizontalVertical

-85 to 85-85 to 85

------


1. Over Scan HorizontalVertical%%

55

5555

2. Color Temperature---xy

K 120000.2720.278

---3%3%

3. Resolution (composite video) HorizontalVerticallineline

400350

------


1. Audio Output 10% Distortion(ATSC 0 dBfs) Lch/Rch W

[LC320EM1,LC320SL1]

5.0/5.0

[LC320EM1,LC320SL1]

4.5/4.5[32MF330B/F7,

LC320SS1,32MF360B/F7]

10.0/10.0

[32MF330B/F7,LC320SS1,

32MF360B/F7]9.0/9.0

2. Audio Distortion (NTSC) 500mW: Lch/Rch % 0.5/0.5 2.0/2.0

3. Audio Freq. Response (NTSC) -6dB: Lch-6dB: Rch

HzHz

70 to 10 k70 to 10 k

------

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IMPORTANT SAFETY PRECAUTIONS

Prior to shipment from the factory, our products are strictly inspected for recognized product safety and electricalcodes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equallyimportant to implement the following precautions when a set is being serviced.

Safety Precautions for LCD TV

Circuit

1. Before returning an instrument to thecustomer, always make a safety check of theentire instrument, including, but not limited to, thefollowing items:

a. Be sure that no built-in protective devices aredefective and have been defeated duringservicing. (1) Protective shields are providedon this chassis to protect both the technicianand the customer. Correctly replace all missingprotective shields, including any removed forservicing convenience. (2) When reinstallingthe chassis and/or other assembly in the

cabinet, be sure to put back in place allprotective devices, including but not limited to,nonmetallic control knobs, insulatingfishpapers, adjustment and compartmentcovers/shields, and isolation resistor/capacitornetworks. Do not operate this instrument orpermit it to be operated without allprotective devices correctly installed and

functioning. Servicers who defeat safetyfeatures or fail to perform safety checksmay be liable for any resulting damage.

b. Be sure that there are no cabinet openings

through which an adult or child might be able toinsert their fingers and contact a hazardousvoltage. Such openings include, but are notlimited to, (1) spacing between the LiquidCrystal Panel and the cabinet mask, (2)excessively wide cabinet ventilation slots, and(3) an improperly fitted and/or incorrectlysecured cabinet back cover.

c. Antenna Cold Check - With the instrument ACplug removed from any AC source, connect anelectrical jumper across the two AC plugprongs. Place the instrument AC switch in theon position. Connect one lead of an ohmmeter

to the AC plug prongs tied together and touchthe other ohmmeter lead in turn to each tunerantenna input exposed terminal screw and, ifapplicable, to the coaxial connector. If themeasured resistance is less than 1.0 megohmor greater than 5.2 megohm, an abnormalityexists that must be corrected before theinstrument is returned to the customer. Repeatthis test with the instrument AC switch in the offposition.

d. Leakage Current Hot Check - With theinstrument completely reassembled, plug the

AC line cord directly into a 120 V AC outlet. (Donot use an isolation transformer during thistest.) Use a leakage current tester or ametering system that complies with AmericanNational Standards Institute (ANSI) C101.1Leakage Current for Appliances andUnderwriters Laboratories (UL) 1410, (50.7).With the instrument AC switch first in the onposition and then in the off position, measurefrom a known earth ground (metal water pipe,conduit, etc.) to all exposed metal parts of theinstrument (antennas, handle brackets, metalcabinet, screw heads, metallic overlays, control

shafts, etc.), especially any exposed metalparts that offer an electrical return path to thechassis. Any current measured must notexceed 0.5 milli-ampere. Reverse theinstrument power cord plug in the outlet andrepeat the test.

ANY MEASUREMENTS NOT WITHIN THELIMITS SPECIFIED HEREIN INDICATE A

POTENTIAL SHOCK HAZARD THAT MUSTBE ELIMINATED BEFORE RETURNING THEINSTRUMENT TO THE CUSTOMER OR

BEFORE CONNECTING THE ANTENNA ORACCESSORIES.

2. Read and comply with all caution and safety-related notes on or inside the receiver cabinet, onthe receiver chassis, or on the Liquid CrystalPanel.

ALSO TEST WITH

PLUG REVERSEDUSING AC

ADAPTER PLUGAS REQUIRED

TEST ALL EXPOSED

METAL SURFACES

READING SHOULDNOT BE ABOVE 0.5 mA

EARTHGROUND

_

DEVICELEAKAGECURRENT

TESTER

+

BEING

TESTED

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3. Design Alteration Warning - Do not alter or addto the mechanical or electrical design of this TVreceiver. Design alterations and additions,including, but not limited to circuit modificationsand the addition of items such as auxiliary audioand/or video output connections, might alter thesafety characteristics of this receiver and create ahazard to the user. Any design alterations oradditions will void the manufacturer's warranty and

may make you, the servicer, responsible forpersonal injury or property damage resultingtherefrom.

4. Hot Chassis Warning -

a. Some TV receiver chassis are electricallyconnected directly to one conductor of the ACpower cord and maybe safety-serviced withoutan isolation transformer only if the AC powerplug is inserted so that the chassis isconnected to the ground side of the AC powersource. To confirm that the AC power plug isinserted correctly, with an AC voltmeter,

measure between the chassis and a knownearth ground. If a voltage reading in excess of1.0 V is obtained, remove and reinsert the ACpower plug in the opposite polarity and againmeasure the voltage potential between thechassis and a known earth ground.

b. Some TV receiver chassis normally have 85VAC(RMS) between chassis and earth groundregardless of the AC plug polarity. This chassiscan be safety-serviced only with an isolationtransformer inserted in the power line betweenthe receiver and the AC power source, for bothpersonnel and test equipment protection.

c. Some TV receiver chassis have a secondaryground system in addition to the main chassisground. This secondary ground system is notisolated from the AC power line. The twoground systems are electrically separated byinsulation material that must not be defeated oraltered.

5. Observe original lead dress. Take extra care toassure correct lead dress in the following areas: a.near sharp edges, b. near thermally hot parts-besure that leads and components do not touchthermally hot parts, c. the AC supply, d. high

voltage, and, e. antenna wiring. Always inspect inall areas for pinched, out of place, or frayed wiring.Check AC power cord for damage.

6. Components, parts, and/or wiring that appear tohave overheated or are otherwise damagedshould be replaced with components, parts, orwiring that meet original specifications.Additionally, determine the cause of overheatingand/or damage and, if necessary, take correctiveaction to remove any potential safety hazard.

7. Product Safety Notice - Some electrical andmechanical parts have special safety-relatedcharacteristics which are often not evident fromvisual inspection, nor can the protection they givenecessarily be obtained by replacing them withcomponents rated for higher voltage, wattage, etc.Parts that have special safety characteristics areidentified by a# on schematics and in parts lists.Use of a substitute replacement that does not

have the same safety characteristics as therecommended replacement part might createshock, fire, and/or other hazards. The product'ssafety is under review continuously and newinstructions are issued whenever appropriate.Prior to shipment from the factory, our productsare strictly inspected to confirm they comply withthe recognized product safety and electrical codesof the countries in which they are to be sold.However, in order to maintain such compliance, itis equally important to implement the followingprecautions when a set is being serviced.

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Precautions during Servicing

A. Parts identified by the# symbol are critical forsafety.Replace only with part number specified.

B. In addition to safety, other parts and assembliesare specified for conformance with regulationsapplying to spurious radiation. These must also bereplaced only with specified replacements.

Examples: RF converters, RF cables, noiseblocking capacitors, and noise blocking filters, etc.

C. Use specified internal wiring. Note especially:

1) Wires covered with PVC tubing

2) Double insulated wires

3) High voltage leads

D. Use specified insulating materials for hazardouslive parts. Note especially:

1) Insulation Tape

2) PVC tubing

3) Spacers

4) Insulators for transistors.

E. When replacing AC primary side components(transformers, power cord, etc.), wrap ends ofwires securely about the terminals beforesoldering.

F. Observe that the wires do not contact heatproducing parts (heat sinks, oxide metal filmresistors, fusible resistors, etc.)

G. Check that replaced wires do not contact sharpedged or pointed parts.

H. When a power cord has been replaced, check that

5~6 kg of force in any direction will not loosen it.I. Also check areas surrounding repaired locations.

J. Use care that foreign objects (screws, solderdroplets, etc.) do not remain inside the set.

K. When connecting or disconnecting the internalconnectors, first, disconnect the AC plug from theAC supply outlet.

L. When installing parts or assembling the cabinetparts, be sure to use the proper screws andtighten certainly.

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Safety Check after Servicing

Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts andwires have been returned to original positions. Afterwards, perform the following tests and confirm the specifiedvalues in order to verify compliance with safety standards.

1. Clearance Distance

When replacing primary circuit components, confirmspecified clearance distance (d) and (d') between

soldered terminals, and between terminals andsurrounding metallic parts. (See Fig. 1)

Table 1: Ratings for selected area

Note: This table is unofficial and for reference only. Besure to confirm the precise values.

2. Leakage Current Test

Confirm the specified (or lower) leakage currentbetween B (earth ground, power cord plug prongs) andexternally exposed accessible parts (RF terminals,antenna terminals, video and audio input and outputterminals, microphone jacks, earphone jacks, etc.) islower than or equal to the specified value in the tablebelow.

Measuring Method: (Power ON)

Insert load Z between B (earth ground, power cord plugprongs) and exposed accessible parts. Use an ACvoltmeter to measure across both terminals of load Z.See Fig. 2 and following table.

Table 2: Leakage current ratings for selected areas

Note: This table is unofficial and for reference only. Be sure to confirm the precise values.

AC Line Voltage RegionClearance

Distance (d), (d)

110 to 130 V U.S.A. orCanada 3.2 mm

(0.126 inches)

AC Line Voltage Region Load Z Leakage Current (i) Earth Ground (B) to:

110 to 130 V U.S.A. orCanada0.15 F CAP. & 1.5 k

RES. Connected in parallel i 0.5 mA rmsExposed accessible

parts

Chassis or Secondary Conductor

Primary Circuit

Fig. 1

d' d

AC Voltmeter(High Impedance)

Exposed Accessible Part

BEarth Ground

Power Cord Plug Prongs

Z

Fig. 2

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STANDARD NOTES FOR SERVICING

Circuit Board Indications

1. The output pin of the 3 pin Regulator ICs isindicated as shown.

2. For other ICs, pin 1 and every fifth pin areindicated as shown.

3. The 1st pin of every male connector is indicated asshown.

Pb (Lead) Free Solder

Pb free mark will be found on PCBs which use Pbfree solder. (Refer to figure.) For PCBs with Pb free

mark, be sure to use Pb free solder. For PCBswithout Pb free mark, use standard solder.

How to Remove / Install Flat Pack-IC

1. Removal

With Hot-Air Flat Pack-IC Desoldering Machine:

1. Prepare the hot-air flat pack-IC desoldering

machine, then apply hot air to the Flat Pack-IC(about 5 to 6 seconds). (Fig. S-1-1)

2. Remove the flat pack-IC with tweezers whileapplying the hot air.

3. Bottom of the flat pack-IC is fixed with glue to theCBA; when removing entire flat pack-IC, first applysoldering iron to center of the flat pack-IC and heatup. Then remove (glue will be melted). (Fig. S-1-6)

4. Release the flat pack-IC from the CBA usingtweezers. (Fig. S-1-6)

CAUTION:1. The Flat Pack-IC shape may differ by models. Usean appropriate hot-air flat pack-IC desolderingmachine, whose shape matches that of the FlatPack-IC.

2. Do not supply hot air to the chip parts around theflat pack-IC for over 6 seconds because damageto the chip parts may occur. Put masking tapearound the flat pack-IC to protect other parts fromdamage. (Fig. S-1-2)

Top View

Out In

Bottom View

Input

5

10

Pin 1

Pin 1

Pb free mark

Fig. S-1-1

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10/903-2 TVN_SN

3. The flat pack-IC on the CBA is affixed with glue, sobe careful not to break or damage the foil of eachpin or the solder lands under the IC whenremoving it.

With Soldering Iron:

1. Using desoldering braid, remove the solder fromall pins of the flat pack-IC. When you use solderflux which is applied to all pins of the flat pack-IC,you can remove it easily. (Fig. S-1-3)

2. Lift each lead of the flat pack-IC upward one byone, using a sharp pin or wire to which solder willnot adhere (iron wire). When heating the pins, usea fine tip soldering iron or a hot air desoldering

machine. (Fig. S-1-4)



Hot-airFlat Pack-ICDesoldering

MachineCBA

Flat Pack-IC

Tweezers

MaskingTape

Fig. S-1-2

Flat Pack-IC Desoldering Braid

Soldering Iron

Fig. S-1-3

Fine TipSoldering Iron

SharpPin

Fig. S-1-4

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With Iron Wire:

1. Using desoldering braid, remove the solder fromall pins of the flat pack-IC. When you use solderflux which is applied to all pins of the flat pack-IC,you can remove it easily. (Fig. S-1-3)

2. Affix the wire to a workbench or solid mountingpoint, as shown in Fig. S-1-5.

3. While heating the pins using a fine tip soldering

iron or hot air blower, pull up the wire as the soldermelts so as to lift the IC leads from the CBAcontact pads as shown in Fig. S-1-5.



Note: When using a soldering iron, care must betaken to ensure that the flat pack-IC is notbeing held by glue. When the flat pack-IC is

removed from the CBA, handle it gentlybecause it may be damaged if force is applied.

2. Installation

1. Using desoldering braid, remove the solder fromthe foil of each pin of the flat pack-IC on the CBAso you can install a replacement flat pack-IC moreeasily.

2. The I mark on the flat pack-IC indicates pin 1.(See Fig. S-1-7.) Be sure this mark matches thepin 1 on the PCB when positioning for installation.

Then presolder the four corners of the flat pack-IC.(See Fig. S-1-8.)

3. Solder all pins of the flat pack-IC. Be sure thatnone of the pins have solder bridges.

To SolidMounting Point

Soldering Iron

Iron Wire

or

Hot Air Blower

Fig. S-1-5

Fine TipSoldering IronCBA

Flat Pack-ICTweezers

Fig. S-1-6

Example :

Pin 1 of the Flat Pack-ICis indicated by a " " mark.

Fig. S-1-7

Presolder

CBA

Flat Pack-IC

Fig. S-1-8

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Instructions for Handling Semi-

conductors

Electrostatic breakdown of the semi-conductors mayoccur due to a potential difference caused byelectrostatic charge during unpacking or repair work.

1. Ground for Human Body

Be sure to wear a grounding band (1 M) that isproperly grounded to remove any static electricity thatmay be charged on the body.

2. Ground for Workbench

Be sure to place a conductive sheet or copper platewith proper grounding (1 M) on the workbench orother surface, where the semi-conductors are to beplaced. Because the static electricity charge onclothing will not escape through the body groundingband, be careful to avoid contacting semi-conductorswith your clothing.

CBA

Grounding Band

Conductive Sheet orCopper Plate

1M

1M

CBA

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CABINET DISASSEMBLY INSTRUCTIONS

1. Disassembly Flowchart

This flowchart indicates the disassembly steps for thecabinet parts, and the CBA in order to gain access toitem(s) to be serviced. When reassembling, follow thesteps in reverse order. Bend, route and dress the

cables as they were.

2. Disassembly Method

Note:

(1) Order of steps in procedure. When reassembling,follow the steps in reverse order. These numbersare also used as the Identification (location) No. ofparts in figures.

(2) Parts to be removed or installed.

(3) Fig. No. showing procedure of part location

(4) Identification of parts to be removed, unhooked,unlocked, released, unplugged, unclamped, ordesoldered.P = Spring, L = Locking Tab, S = Screw,H = Hex Screw, CN = Connector* = Unhook, Unlock, Release, Unplug, or Desoldere.g. 2(S-2) = two Screws (S-2),

2(L-2) = two Locking Tabs (L-2)

(5) Refer to the following "Reference Notes in theTable."

Step/Loc.No.

Part

Removal

Fig.No.

Remove/*Unhook/Unlock/Release/Unplug/Unclamp/

Desolder

Note

[1] StandAssembly D1 4(S-1) ---

[2] RearCabinet D1 13(S-2), 2(S-3), 3(S-4) ---

[3] InverterCBAD2D4

6(S-5), *CN1001,*CN1003, *CN1050,*CN1100, *CN1150,*CN1200, *CN1900

---

[4] Jack CBA D2D4 2(S-6), *CL701B ---

[5]PowerSupplyCBA

D2D4

7(S-7), *CN101,*CN301, *CN302,*CN801, *CN802

---

[6] Jack Holder D2 2(S-8) ---

[1] StandAssembly

[2] Rear Cabinet

[9] Speaker

[8] SpeakerHolder (L,R)

[3] Inverter CBA

[4] Jack CBA

[6] Jack Holder

[7] Digital MainCBA Unit

[5] Power Supply

CBA

[13] LCD ModuleAssembly

[14] FrontCabinet

[11] IR SensorCBA

[10] JunctionCBA

[12] Function

CBA

[7] Digital MainCBA UnitD2D4

4(S-9), 2(S-10),4(S-11), *CN3902,Shield Box

---

[8]SpeakerHolder(L,R)

D3 *Hook ---

[9] Speaker D3 4(S-12) ---

[10] JunctionCBAD3D4 Desolder ---

[11] IR SensorCBAD3D4

2(S-13), 2(S-14),*CL103B ---

[12] FunctionCBAD3D4 --------------- ---

[13]LCDModuleAssembly

D3 (S-15) ---

[14] FrontCabinet D3 --------------- ---

(1)

(2)

(3)

(4)

(5)

Step/Loc.No.

Part

Removal

Fig.No.

Remove/*Unhook/Unlock/Release/Unplug/Unclamp/

Desolder

Note

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14/904-2 FL10.3DC

[2] Rear Cabinet

(S-1)

[1] Stand Assembly

(S-2)

(S-4)

(S-2)

(S-3)

(S-2)

(S-2)

(S-4)

(S-4)

Fig. D1

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(S-5)

(S-5)

[4] Jack CBA

[6] Jack Holder

[5] Power Supply CBA[7] Digital MainCBA Unit

[3] Inverter CBA

(S-6)

(S-7)

(S-8) (S-9)

(S-9)

Shield Box

(S-10)

(S-11)

(S-7)

(S-7)

Fig. D2

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(S-14)

(S-13)

(S-12)Hook

(S-15)

[13] LCD ModuleAssembly

[11] IR Sensor CBA

[12] Function CBA

[8] Speaker Holder (R)

[8] Speaker Holder (L)

[10] JunctionCBA

[9] Speaker

[14] Front Cabinet

(S-12)Hook

[9] Speaker

Fig. D3

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TV Cable Wiring Diagram

Power Supply CBA

Jack

CBA

CN201 CN1001

CN1003

CN3902

CN3702

CN3701

CN1050

CN1100

CN1150

CN1200

Digital MainCBA Unit

CN1900

Inverter CBA

CL103B

CN802

AC CORD

CL701B

CN302

CL701A

CN801

CN602

CN101

CN301

CL103C

CL102A

CL101B

JunctionCBA

Function CBA

CN101

IR Sensor CBA

To LCD ModuleAssembly

To Speaker

To LCD Module

Assembly

Fig. D4

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ELECTRICAL ADJUSTMENT INSTRUCTIONS

General Note: CBA is abbreviation forCircuit Board Assembly.

Note: Electrical adjustments are required afterreplacing circuit components and certainmechanical parts. It is important to performthese adjustments only after all repairs andreplacements have been completed.Also, do not attempt these adjustments unlessthe proper equipment is available.

Test Equipment Required

1. NTSC Pattern Generator (Color Bar W/WhiteWindow, Red Color, Dot Pattern, Gray Scale,Monoscope, Multi-Burst)

2. Remote control unit

3. Color Analyzer

How to set up the service mode:

Service mode:

1. Turn the power on.

2. Press [MENU] button to display Setup menu.

3. Select Features.4. Select Current Software Info.

5. Press [0], [4], [2], [5], [7], [4] and [Info] buttons onthe remote control unit in this order. The followingscreen appears.

Code :

Pic code :

MIPS :

Press "POWER" key to exit.

*******-***-*-*****-****

**-*******-*****-**

Push 0key

Tuner :

Safety :

****-*****-****

safety_Non

"*" differs depending on the models.

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19/905-2 LC8NEA

1. Purity Check Mode

This mode cycles through full-screen displays of red,green, blue, and white to check for non-active pixels.

1. Enter the Service mode.

2. Each time pressing [7] button on the remotecontrol unit, the display changes as follows.

3. To cancel or to exit from the Purity Check Mode,press [PREV CH] button.

2. VCOM Adjustment

1. Operate the unit for more than 20 minutes.

2. Set the color analyzer and bring the opticalreceptor to the center on the LCD-Panel surfaceafter zero point calibration as shown above.Note: The optical receptor must be setperpendicularly to the LCD Panel surface.

3. Enter the Service mode.

4. Press [3] button on the remote control unit.

5. Press [CHANNEL UP/DOWN] buttons on theremote control unit so that the color analyzer valuebecomes minimum.

6. To cancel or to exit from the VCOM Adjustment,press [PREV CH] button.

[7] button

Note:

When entering this mode, the default setting is White mode.

Purity Check Mode

[7] button

Red mode

Green mode

Blue mode

Black mode

[7] button

White mode

[7] button

[7] button

White 20% mode

[7] button

Test Point Adj. Point

Screen [CHANNEL UP/DOWN ]buttons

M. EQ. Spec.

Color analyzer See below

Figure

Color Analyzer

To avoid interference from ambinentlight, this adjustment should beperformed in a dark room.

L = 3 cm

Perpendicularity

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20/905-3 LC8NEA

The White Balance Adjustment should beperformed when replacing the LCD Panelor Digital Main CBA.

3. White Balance Adjustment

Purpose: To mix red, green and blue beams correctlyfor pure white.

Symptom of Misadjustment: White becomes bluishor reddish.

1. Operate the unit for more than 20 minutes.

2. Input the White Raster(70%=70IRE, 40%=40IRE).

3. Set the color analyzer to the CHROMA mode and

bring the optical receptor to the center on theLCD-Panel surface after zero point calibration asshown above.Note: The optical receptor must be setperpendicularly to the LCD Panel surface.

4. Enter the Service mode. Press [VOLUME DOWN]button on the remote control unit and select C/Dmode.

5. [CUTOFF]Press [1] button to select COR for Red Cutoffadjustment. Press [3] button to select COB forBlue Cutoff adjustment.[DRIVE]Press [4] button to select DR for Red Driveadjustment. Press [6] button to select DB for BlueDrive adjustment.

6. In each color mode, press [CHANNEL UP/DOWN]buttons to adjust the values of color.

7. Adjust Cutoff and Drive so that the colortemperature becomes 12000K (x= 0.272 / y=0.278 0.005).

8. To cancel or to exit from the White BalanceAdjustment, press [PREV CH] button.

Test Point Adj. Point Mode Input

Screen[VOLUMEDOWN]button

[VIDEO1]C/D

White Raster

(APL 70%)or

(APL 40%)

M. EQ. Spec.

Pattern Generator,Color analyzer

x= 0.272 0.005

y= 0.278 0.005

Figure

Color Analyzer

L = 3 cm

Perpendicularity

INPUT: WHITE 70%, 40%

To avoid interference from ambinentlight, this adjustment should beperformed in a dark room.

40%=40IRE 70%=70IRE100IRE100IRE

0IRE 0IRE

INPUT SIGNAL

Low

Light

Hight

Light

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HOW TO INITIALIZE THE LCD TV

The purpose of initialization is to place the set in a new out of box condition. The customer will be prompted toselect a language and program channels after the set has been initialized.To put the program back at the factory-default, initialize the LCD TV using the following procedure.

1. Turn the power on.

2. Enter the service mode.

- To cancel the service mode, press [POWER]button on the remote control unit.

3. Press [INFO] button on the remote control unit toinitialize the LCD television.

4. "INITIALIZED" will appear in the upper right of thescreen. "INITIALIZED" color will change to greenfrom red when initializing is completed.

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FIRMWARE RENEWAL MODE

Equipment Requireda. USB storage deviceb. Remote Control Unit

Firmware Update ProcedureNote: There are two states (the User Upgrade and

the Factory Upgrade) in firmware update.

The identification of User Upgrade and FactoryUpgrade are done by the filename.

1. Turn the power off and unplug the AC Cord.

2. Insert the USB storage device to the USB port asshown below.

3. Plug the AC cord in the wall outlet and turn thepower on.

4. The update will start and the following will appearon the screen.

Note: If the above screen isnt displayed, repeat fromstep 1.

The appearance shown in *1 is described as follows.

5. When the firmware update is completed, thefollowing will appear on the screen.

Remove the USB storage device from the USBport.Turn the power off and turn the power on again.

Note:

When the Factory Upgrade is used, afterrestarting TV, shift to initial screen menu in servicemode. "INITIALIZED" will appear on the upperright of the screen. "INITIALIZED" color will

change to green from red when initializing iscompleted.

User Upgrade Upgrade the firmware only.The setting values are notinitialized.

Factory upgrade Upgrade the firmware andinitialize the setting values.

USB storagedevice

Rear Cabinet

Software upgrade in progress. Please wait.

Do not remove the USB storage device or

turn the TV off while upgrade is in progress.

Software Upgrade

Downloading...

Current Version:

New Version:*******-***-*-***-****

*******-***-*-***-****

0%

*1

"*" differs depending on the models.

Appearance State

Downloading... Downloading the firmware fromthe USB storage device.

Writing... Writing the downloaded firmware

in flash memory.Checking... Checking the new firmware.

Software Upgrade

The software upgrade is completed.

Remove USB storage device, turn TV off then on again.

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TROUBLESHOOTING

[ Power Supply Section ]

The power cannot be turned on.

The fuse blows out.

FLOW CHART NO.1

FLOW CHART NO.2

Is normal state restored when once unplugged

power cord is plugged again several seconds?Check if there is any leak or shor t-circuiting on the

primary circuit component, and service it if defective.

(C605, D601, D602, D603, D604, Q601, Q602,

T601)

Yes

No

Yes

Is the fuse (F601) normal? See FLOW CHART No.2

No

Yes

Is the AL+33V line voltage normal?No

Check each rectifying circuit of the secondary

circuit and service it if defective.

Check the presence that the primary component

is leaking or shorted and service it if defective.

Check the presence that the rectifying diode or circuit

is shorted in each rectifying circuit of secondary side,

and service it if defective.

After servicing, replace the fuse.

When the output voltage fluctuates.

FLOW CHART NO.3

Does the photocoupler circuit on the

secondary side operate normally?

No

Yes

Check IC601, D652, Q631 and their periphery

circuit, and service it if defective.

When buzz sound can be heard in the vicinity of power circuit.

FLOW CHART NO.4

Check if there is any short-circuit on the rectifying diode and the circuit in each rectifying circuit of the secondary side,

and service it if defective. (IC631, Q207, Q209, Q210, Q211, Q501, Q635, Q636, Q637, Q640, Q641, Q642, Q643,

D631, D632, D633, D638, D641, D642, D646, D647)

Check D657, R661 and their periphery circuit, and

service it if defective.

AL+33V is not output.FLOW CHART NO.5

Is approximately +34V voltage supplied to the

cathode of D638?

No

Yes

Check C638, D638, D639 and their periphery

circuit, and service it if defective.

Check IC601, D609, D611 and their periphery,

circuit and service it if defective.

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Check Q207, Q208, D205, P-ON-H1 line and theirperiphery circuit, and service it if defective.

LCD+24.5V is not output.

FLOW CHART NO.6

Is approximately +30V voltage supplied to the collector

of Q210?

No

Yes

See FLOW CHART No.5

Replace Q209.


base of Q209?

Yes

NoCheck Q207, Q208, D203, D204, D211 and their

periphery circuit, and service it if defective.

No

LCD+16V is not output.

FLOW CHART NO.7

Is approximately +19.5V voltage supplied to the

collector of Q209?

Yes

Replace Q501.


base of Q501?

Yes

NoCheck Q207, Q208, D203, D204, D211 and their


No

INV+16V is not output.

FLOW CHART NO.8


collector of Q501?

Yes

Check C631, D631, D635 and their periphery circuit,




P-ON+7V is not output.

FLOW CHART NO.9


collector of D646?

Check C644, D646 and their periphery circuit,


Yes

No

Check if there is any leak or short-circuit on

the loaded circuit, and service it if defective.

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See FLOW CHART No.9

See FLOW CHART No.9

AL+13V(M+13V) is not output.

FLOW CHART NO.12

Yes

NoIs approximately +13V voltage supplied to the

cathode of D641 and D642?





P-ON+5V is not output. (LCD+16V is outputted normally.)

FLOW CHART NO.10


collector of Q641 and the collector of Q643?


base of Q641 and the base of Q643?

No

Yes

Yes

Check D645 and their periphery circuit, and service

it if defective.

No

Replace Q641 or Q643.

TUNER+5V is not output. (LCD+16V is outputted normally.)

FLOW CHART NO.11


collector of Q640?


base of Q640?

No

Yes

Yes


it if defective.

No

Replace Q640.

P-ON+3V is not output.

FLOW CHART NO.13


cathode of D647?

Yes

No



Check C645, D647 and their periphery circuit, and


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P-ON+3.3V is not output.

FLOW CHART NO.14


cathode of D633?

Is the "H" signal (approximately +3.5V) inputted to the

base of Q637?

No

Yes

Yes

Check C633, D633 and their periphery circuit, and


Check Q638, Q639, D666, P-ON-H2 line and their


No

Replace Q637.

P-ON+9V is not output. (LCD+16V is outputted normally.)

FLOW CHART NO.15


collector of Q642?


base of Q642?

Is approximately +5V voltage supplied to Pin(3) of

IC631?

No

Yes

Yes

Yes


it if defective.

NoCheck Q635, D659 and their periphery circuit, and


See FLOW CHART No.5

See FLOW CHART No.12

No

No

AL+3.3V is not output.

FLOW CHART NO.16


collector of Q635?

Yes

Replace IC631.

Replace Q642.

Check C632, D632 and their peripherycircuit, and service it if defective.

Check Q207, Q208, D208, P-ON-H1 line and their


Replace Q211.

Is approximately -8V voltage supplied to the

base of Q211?

Yes

No

No

LCD-6.8V is not output.

FLOW CHART NO.17

Is approximately -9V voltage supplied to theAnode of D632?

Yes

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[ Video Signal Section ]

No

Is the "L" pulse sent out Pin(1) terminal of remote

control receiver (RS102) when the infrared remote

control is activated?

Check the line between Pin(1) terminal of remote

control receiver(RS102) and Pin(25) of CN301,


Yes

Is the "L" pulse supplied to Pin(25) of CN301?

Yes

Is 3.3V voltage supplied to Pin(2) terminal of the

remote control receiver (RS102)?

No

FLOW CHART NO.2

Operation is possible from the unit.

Check AL+3.3V line and service it if defective.

NoReplace the remote control receiver(RS102)

or the remote control unit.

Yes

Replace Digital Main CBA Unit.

When pressing each switches (SW101A, SW103A~

SW107A) do the voltage of Pin(29) of CN302 increase?

Yes

The key operation is not functioning.

FLOW CHART NO.1

Are the contact point and installation state of the key

switches (SW101A, SW103A~SW107A) normal?

Re-install the switches (SW101A, SW103A~SW107A)

correctly or replace the poor switch.

Check the switches (SW101A, SW103A~SW107A)

and their periphery circuit, and service it if defective.

Yes


No

No

No operation is possible from the remote control unit.

Picture does not appear normally.(Video input)

FLOW CHART NO.3

Are the video signal inputted to Pin(4) of CN302?

Yes

Yes

Check the line between Pin(4) of CN302 and

JK752, and service it if defective.

No

Is the "H" level signal inputted to the Pin(5) of CN302? Check JK751, R763 and their periphery circuit, and


No

Replace Digital Main CBA Unit or LCD Module

Assembly.

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Picture does not appear normally.(S-Video input)

FLOW CHART NO.5

Are the video signal outputted to the Pin(6, 8) of

CN302?

Check the line between Pin(6, 8) of CN302 and

JK751, and service it if defective.


Pin(10, 11) of TU301, and service it if defective.

Yes

Yes

No

No

Picture does not appear normally.(Tuner input)

FLOW CHART NO.4

Are the DIF signal inputted to the Pin(26,28) of CN302?

Yes


Assembly.


Assembly.

Pin(6): S-VIDEO-C

Pin(8): S-VIDEO-Y

Picture does not appear normally.(Y/Pb/Pr input)

FLOW CHART NO.6

Are the video signal inputted to the Pin(15, 17, 19) of

CN302?

Check the line between Pin(15, 17, 19) of CN302

and input terminals(JK731, JK732, JK733), and


Yes

No


Assembly.

Pin(15): VIDEO-Y

Pin(17): VIDEO-Pb

Pin(19): VIDEO-Pr

No

Is the "L" level signal inputted to the Pin(19) of CN701A?

Check CL701 and their

periphery circuit, and


Replace JK751

NoIs the "L" level signal inputted to the Pin(5) of CN302?

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[ Audio Signal Section ]

Check SP801,SP802 and their periphery circuit,


Are the audio(L/R) signals inputted to the Pin(1, 44)

of IC801?


of IC871?

Yes

Yes

Audio is not outputted normally.(Audio input)

FLOW CHART NO.1

Are the audio(L/R) signals inputted to Pin(2, 15)

of IC771?

Check the line between Pin(2, 15) of IC771 and input

terminal(JK753, JK754), and service it if defective.

Yes

No

No

No

Are the audio(L/R) signals outputted to the Pin(1, 2)

of CN801 and CN802?

Are the audio(L/R) signals outputted to the audio

output terminal?

Check IC801 and their periphery circuit, and


CN801: SP(L)

CN802: SP(R)

JK871: AUDIO(L)-OUT

JK872: AUDIO(R)-OUT

No

Yes

Are the audio(L/R) signals inputted to each pin ofCN301?



Pin(1, 44) of IC801, and service it if defective.



No Check the line between Pin(1, 7) of IC871 and audio

output terminal(JK871, JK872), and service it if

defective.

Pin(6) :

Pin(8) :

Pin(2) :

Pin(4) :

AMP(L)-OUT

AMP(R)-OUT

AUDIO(L)-OUT

AUDIO(R)-OUT

No

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No

Yes

Audio is not outputted normally.(Component Audio input)

FLOW CHART NO.2


of IC771?



No




of IC801?


of IC871?

Yes

Yes

No

No


of CN801 and CN802?


output terminal?



CN801: SP(L)

CN802: SP(R)

JK871: AUDIO(L)-OUT

JK872: AUDIO(R)-OUT

No

Yes







defective.

Pin(6) :

Pin(8) :

Pin(2) :

Pin(4) :

AMP(L)-OUT

AMP(R)-OUT

AUDIO(L)-OUT

AUDIO(R)-OUT

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Yes

Audio is not outputted normally.(HDMI Audio input)

FLOW CHART NO.3

Are the audio(L/R) signals inputted to Pin(5, 14)

of IC771?



No



No




of IC801?


of IC871?

Yes

Yes

No

No


of CN801 and CN802?


output terminal?



CN801: SP(L)

CN802: SP(R)

JK871: AUDIO(L)-OUT

JK872: AUDIO(R)-OUT

No

Yes







defective.

Pin(6) :

Pin(8) :

Pin(2) :

Pin(4) :

AMP(L)-OUT

AMP(R)-OUT

AUDIO(L)-OUT

AUDIO(R)-OUT

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Yes

Audio is not outputted normally.(Tuner input)

FLOW CHART NO.4

Are the DIF signals outputted to the Pin(26, 28)

of CN302?

Check TU301 and their periphery circuit, and


No



No




of IC801?


of IC871?

Yes

Yes

No

No


of CN801 and CN802?


output terminal?



CN801: SP(L)

CN802: SP(R)

JK871: AUDIO(L)-OUT

JK872: AUDIO(R)-OUT

No

Yes







defective.

Pin(6) :

Pin(8) :

Pin(2) :

Pin(4) :

AMP(L)-OUT

AMP(R)-OUT

AUDIO(L)-OUT

AUDIO(R)-OUT

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Video Block Diagram

DIGITALMAINCBAUNIT

COMPONENT

-Y-I

N

COMPONENT

-Pb-I

N

COMPONENT

-Pr-IN

JK731

JK732

JK733

VIDEO-I

N

4

4

S-V

IDEO-C-I

N

6

6

S-V

IDEO-Y-I

N

8

8

S-V

IDEO-S

W

5

5

COM-VIDEO-Y-IN

15

15

COM-VIDEO-Pb-IN

17

17

COM-VIDEO-Pr-IN

19

19

JACKCBA

CL701A

CL701B

VIDEO-I

N

5

S-V

IDEO-C-I

N

3

S-V

IDEO-Y-I

N

1

5 3 1

JK751

S-V

IDEO

-IN

C

Y

JK752

VIDEO-I

N

S-V

IDEO-S

W

2

2

POWERSUPPLYCBA

TU301

DIF-O

UT111

DIF-O

UT210

(TUNERUNIT) I

F-A

GC

9

CN302

DIF-O

UT1

26

26

IF-A

GC

24

24

DIF-O

UT2

28

28

DIF-O

UT1

DIF-O

UT2

IF-A

GC

CN302

CN3702

VIDEO-I

N

S-V

IDEO-C-I

N

S-V

IDEO-Y-I

N

S-V

IDEO-S

W

COM-V

IDEO-Y-I

N

COM-V

IDEO-P

r-IN

COM-V

IDEO-P

b-I

N

TODIGITAL

SIGNALPROCESS

BLOCKDIAGRAM

WF1

WF2

WF3

WF4

WF5

WF6

VIDEOSIGNAL

AUDIOSIGNAL

CN3006

*1

*2

CN3702

CN3006

*1

*2

*1

LC320EM1(SerialNo.:

DS1A,

DS2A,

DS3A,

DS4A,

DS5A),

LC320SL1,

LC320SS1,

32MF330B/F7,

32MF360B/F7

*2

LC320EM1(SerialNo.:

DS6A)

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SCHEMATIC DIAGRAMS / CBA AND TEST POINTS

Standard Notes

WARNING

Many electrical and mechanical parts in this chassishave special characteristics. These characteristicsoften pass unnoticed and the protection afforded bythem cannot necessarily be obtained by usingreplacement components rated for higher voltage,wattage, etc. Replacement parts that have thesespecial safety characteristics are identified in thismanual and its supplements; electrical componentshaving such features are identified by the mark # inthe schematic diagram and the parts l ist. Beforereplacing any of these components, read the parts listin this manual carefully. The use of substitutereplacement parts that do not have the same safetycharacteristics as specified in the parts list may createshock, fire, or other hazards.

Notes:

1. Do not use the part number shown on thesedrawings for ordering. The correct part number isshown in the parts list, and may be slightlydifferent or amended since these drawings wereprepared.

2. All resistance values are indicated in ohms(K = 103, M = 106).

3. Resistor wattages are 1/4W or 1/6W unlessotherwise specified.

4. All capacitance values are indicated in F

(P = 10-6

F).5. All voltages are DC voltages unless otherwise

specified.

6. This schematic diagrams are masterized versionthat should cover the entire FL10.3 chassis models.

Thus some parts in detail illustrated on thisschematic diagrams may vary depend on themodel within the FL10.3 chassis.Please refer to the parts lists for each models.

7. The Circuit Board layout illustrated on this servicemanual is the latest version for this chassis at themoment of making this service manual.

Depend on the mass production date of eachmodel, the actual layout of each Board may differslightly from this version.

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LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ONTHE FOLLOWING PAGES:

1. CAUTION:

CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAMETYPE_A,_V FUSE.

ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE_A,_V.

2. CAUTION:

Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.If Main Fuse (F601) is blown, first check to see that all components in the power supply circuit are notdefective before you connect the AC plug to the AC power supply. Otherwise it may cause some componentsin the power supply circuit to fail.

3. Note:

1. Do not use the part number shown on the drawings for ordering. The correct part number is shown in theparts list, and may be slightly different or amended since the drawings were prepared.

2. To maintain original function and reliability of repaired units, use only original replacement parts which arelisted with their part numbers in the parts list section of the service manual.

4. Voltage indications on the schematics are as shown below:

Plug the TV power cord into a standard AC outlet.:

5. How to read converged lines

6. Test Point Information

2 315.0 5.0

Voltage Indicates that the voltageis not consistent here.

Power on mode(Unit: Volt)

3

2

1

A B C D

1-B1

1-D3

AREA D3

AREA B1

1-D3

Distinction Area

Line Number(1 to 3 digits)

Examples:1. "1-D3" means that line number "1" goes to the line number

"1" of the area "D3".2. "1-B1" means that line number "1" goes to the line number

"1" of the area "B1".

: Indicates a test point with a jumper wire across a hole in the PCB.

: Used to indicate a test point with a component lead on foil side.

: Used to indicate a test point with no test pin.

: Used to indicate a test point with a test pin.

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Power Supply 1 Schematic Diagram

NOTE:

The voltage for parts in hot circuit is measured using

hot GND as a common terminal.

CAUTION !

Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.

If Main Fuse (F601) is blown , check to see that all components in the power supply

circuit are not defective before you connect the AC plug to the AC power supply.

Otherwise it may cause some components in the power supply circuit to fail.

For continued protection against risk of fire,

replace only with same type 4 A, 125V fuse.

CAUTION ! :

ATTENTION : Utiliser un fusible de rechange de mme type de 4A, 125V.4A/125V

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Power Supply 3 & Jack Schematic Diagram

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Inverter Schematic Diagram

NOTE:



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Function Schematic Diagram

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IR Sensor & Junction Schematic Diagram

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Digital Main 1 Schematic Diagram [LC320EM1(Serial No.:DS1A,DS2A,DS3A,DS4A,DS5A), LC320SL1,LC320SS1,32MF330B/F7,32MF360B/F7]

The order of pins shown in this diagram is different from that of actual IC3301.

IC3301 is divided into five and shown as IC3301 (1/6) ~ IC3301 (6/6) in this Digital Main Schematic Diagram Section.

1 NOTE:

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1 NOTE:

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1 NOTE:

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10-13 FL10.3SC




1 NOTE:

7/22/2019 LC320EM1

56/90

10-14 FL10.3SC




1 NOTE:

7/22/2019 LC320EM1

57/90

10-15


FL10.3SC



1 NOTE:

7/22/2019 LC320EM1

58/90

10-16

Digital Main 1 Schematic Diagram [LC320EM1(Serial No.:DS6A)]

FL10.3_2SC



1 NOTE:

7/22/2019 LC320EM1

59/90

10-17


FL10.3_2SC



1 NOTE:

7/22/2019 LC320EM1

60/90

10-18


FL10.3_2SC



1 NOTE:

7/22/2019 LC320EM1

61/90

10-19


FL10.3_2SC



1 NOTE:

7/22/2019 LC320EM1

62/90

10-20


FL10.3_2SC



1 NOTE:

7/22/2019 LC320EM1

63/90

10-21


FL10.3_2SC



1 NOTE:

7/22/2019 LC320EM1

64/90

10-22 BA94F0F010

Power Supply CBA & Jack CBA Top View

Jack CBA Power Supply CBA

NOTE:



Because a hot chassis ground is present in the power supply

circuit, an isolation transformer must be used when repairing.

Also, in order to have the ability to increase the input slowly,

when troubleshooting this type of power supply circuit,

a variable isolation transformer is required.

CAUTION !

Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.If Main Fuse (F601) is blown , check to see that all components in the power supply

circuit are not defective before you connect the AC plug to the AC power supply.Otherwise it may cause some components in the power supply circuit to fail.



CAUTION ! :

ATTENTION : Utilis er un fusible de rechange de mme type de 4A, 125V.4A/125V

7/22/2019 LC320EM1

65/90

10-23

WF1

PIN 4 OF

CN302

WF3

PIN 6 OFCN302

WF1

PIN 4 OF

CN302

WF3

PIN 6 OFCN302

WF2

PIN 8 OF

CN302

WF7

PIN 13 OFCN302

WF4

PIN 15 OF

CN302

WF5

PIN 17 OF

CN302

WF6

PIN 19 OF

CN302

Power Supply CBA & Jack CBA Bottom View

BA94F0F010

Jack CBAPower Supply CBA

NOTE:

The voltage for parts in hot circuit is measured usinghot GND as a common terminal.






CAUTION !

Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.If Main Fuse (F601) is blown , check to see that all components in the power supply

circuit are not defective before you connect the AC plug to the AC power supply.Otherwise it may cause some components in the power supply circuit to fail.



CAUTION ! :

ATTENTION : Utilis er un fusible de rechange de mme type de 4A, 125V.4A/125V

7/22/2019 LC320EM1

66/90

10-24 BA01F4F010

Inverter CBA, Function CBA, IR Sensor CBA & Junction CBA Top View

Function CBA Not Used IR Sensor CBA

Junction CBA

Not Used

Inverter CBA

NOTE:







7/22/2019 LC320EM1

67/90

10-25 BA01F4F010

Inverter CBA, Function CBA, IR Sensor CBA & Junction CBA Bottom View

Function CBANot UsedIR Sensor CBA

Junction CBA

Not Used

Inverter CBA

NOTE:







7/22/2019 LC320EM1

68/90

WAVEFORMS

LC7NWF11-1

Input: NTSC Color Bar Signal (with 1kHz Audio Signal)

WF1 ~ WF7 = Waveforms to be observed atWaveform check points.

(Shown in Schematic Diagram.)

CVBS 0.2V 20s

WF1 Pin 4 of CN302

S-VIDEO-Y 0.2V

WF2 Pin 8 of CN302

20s

S-VIDEO-C 0.2V

WF3 Pin 6 of CN302

20s AUDIO 0.1V 0.5ms

WF7 Pin 13 of CN302

VIDEO-Pr 0.2V 20s

Pin 19 of CN302WF6

VIDEO-Pb 0.2V 20s

Pin 17 of CN302WF5

VIDEO-Y 0.2V 20s

Pin 15 of CN302WF4

7/22/2019 LC320EM1

69/90FL10.3WI12-1

WIRING DIAGRAM

INVERTERC

BA

TUNERUNIT

HDMI-

AUDIO(L)-IN

HDMI-

AUDIO(R)-IN

AUDIO(L)

-OUT

AUDIO(R)

-OUT A

C601

ACCORD

POWERSUPPLYCBA

DIGITALMAINCBAUNIT

HDMI-

CONNECTOR-1

HDMI-

CONNECTOR-2

HDMI-

CONNECTOR-3

LCDMODULE

ASSEMBLY

CL801

1

CN801

2

SP(L)-

SP(L)+

CL802

1

CN802

2

SP(R)-

SP(R)+

SP801

SPEAKER

L-C

H

SP802

SPEAKER

R-C

H

COMPONENT

-Y-I

N

COMPONENT

-Pb-I

N

COMPONENT

-Pr-

IN

COMPONENT-

AUDIO(L)-IN

COMPONENT-

AUDIO(R)-IN

VIDEO-I

N

AUDIO(L)

-IN

AUDIO(R)

-IN

S-V

IDEO

-IN

CN602

CN201

CN1900

CN1001

1

1

HOT-G

ND

2

2

ACL

15

1

GND

14

2

INV+

16V

13

3

GND

12

4

BACKLIGHT-ADJ

11

5

BACKLIGHT-SW

10

6

PROTECT3

9

7

GND

8

8

LCD+

16V

7

9

LCD+

16V

6

10

VGH

5

11

GND

4

12

P-O

N+

3.3

V

3

13

LCD-6.8

V

2

14

VCOM

1

15

GND

BACK

LIGHT

CN

1050 21

BACK

LIGHT

CN

1100 21

BACK

LIGHT

CN

1150 21

BACK

LIGHT

CN

1200 21

DIGITAL

AUDIO-O

UT

(COAXIAL)

JACKCB

A

JUNCTIONC

BA

IRSENSORCBA

FUNCTIONCBA

CL701A

CL701

CL701B

1

1

S-V

IDEO-Y-I

N

3

3

S-V

IDEO-C-I

N

2

2

S-V

IDEO-S

W

4

4

GND

5

5

VIDEO-I

N

7

7

AUDIO(L)-IN

6

6

GND

8

8

GND

9

9

AUDIO(R)-IN

CN101

CL101

CL103

CN101

1

1

GND

3

3

AL+

3.3

V

2

2

REMOTE

4

4

LED1

5

5

P-O

N-H

1

6

6

KEY-I

N1

7

7

KEY-I

N2

8

8

DVD-L

ED

1

1

GND

3

3

AL+

3.3

V

2

2

REMOTE

4

4

LED1

4

4

KEY-I

N2

5

5

P-O

N-H

1

6

6

KEY-I

N1

7

7

KEY-I

N2

8

8

DVD-L

ED

CL101B

C

L102A

C

L103B

CL103C

3

3

KEY-I

N1

2

2

GND

1

1

AL+

3.3

V

C

N1003 1

1

GND

10

VCOM

9

GND

8

LCD-6.8

V

7

P-O

N+

3.3

V

6

P-O

N+

3.3

V

5

GND

4

VGH

3

LCD+

16V

2

LCD+

16V

1

GND

24

GND

23

LLV0(+)

22

LLV0(-)

21

LLV1(+)

20

LLV1(-)

19

LLN2(+)

18

LLV2(-)

17

GND

16

LLVCLK(+)

15

LLVCLK(-)

14

GND

13

LLV3(+)

12

LLV3(-)

11

LLV4(+)

10

LLV4(-)

9

LLV5(+)

8

LLV5(-)

7

GND

6

TP

5

POL

4

CPV

3

OE1

2

XAO

1

STV

CN301

23

19

21

15

17

22

20

18

16

14

10

126 8 1

3119751 3 4

1 53 972 4 6 8 10

14

12

18

16

11

13

15

17

19

23

21

20

2

P-O

N-H

2

AUDIO(L)-OUT

GND

AUDIO(R)-OUT

PROTECT3

AMP(L)-OUT

GND

AMP(R)-OUT

P-O

N-H

1

P-O

N+

3V

PROTECT1

GND

LED-R

P-O

N+

5V

PROTECT2

P-O

N+

7V

GND

GND

P-O

N+

3.3

V

P-O

N+

3.3

V

AL+

3.3

V

AL+

3.3

V

GND

22

24

24

OE2

25

25

REMOTE

26

26

BACKLIGHT-SW

27

27

LED1

28

28

BACKLIGHT-ADJ

29

29

VCOM-P

WM

CN302

23

19

21

15

17

22

20

18

16

14

10

126 8 1

3119751 3 4

1 53 972 4 6 8 10

14

12

18

16

11

13

15

17

19

23

21

20

2

GND

SPDIF

GND

VIDEO-I

N

S-V

IDEO-S

W

S-V

IDEO-C-I

N

GND

S-V

IDEO-Y-I

N

GND

INPUT1

AUDIO(R)

INPUT0

AUDIO(L)

GND

COM-VIDEO-Y-IN

GND

COM-VIDEO-Pb-IN

GND

COM-VIDEO-Pr-IN

AUDIO-M

UTE

SDA

SCL

RESET

22

24

24

IF-A

GC

25

25

GND

26

26

DIF-O

UT1

27

27

GND

28

28

DIF-O

UT2

29

29

KEY-I

N1

CL3701

CL3702

CL602

CL201

CL1003

CL3902

PC-A

UDIO

-IN

WITHPCINPUT

CN3701C

N3002

*1

*2

CN3702C

N3006

*1

*2

C

N3902

C

N3005

*1*2

*1

LC320EM1(SerialNo.:

DS1A,

DS2A,

DS3A,

DS4A,

DS5A),

LC320S

L1,

LC320SS1,

32MF330B/F7,

32MF360B/F7

*2

LC320EM1(SerialNo.:

DS6A)

7/22/2019 LC320EM1

70/90

13-1

EXPLODED VIEWS

Cabinet

A12

A1A15

B15

B15

*1

*2

*1: LC320EM1, LC320SL1

*2: 32MF330B/F7, LC320SS1, 32MF360B/F7

A5

L8

L2 L8

See Electrical Parts List

for parts with this mark.

Digital Main CBA Unit

Inverter CBA

AC601

B9

L6

L8

IR Sensor CBA

Function CBA

CL802

CL801

SP801

SP802

Power Supply CBA

B15

A8

A2

A13

L8

Jack CBA

L6

B27

B44

L2

L1

L3

B14

B13

B13

B11

L8

L2

L2

L2

LCD1

CL3902

CL1003

B1

L8

L8

B4 L2

L2

L2

B15

B8

L2

L1

L8

L8

Junction CBACL101CL103

B5

L3

L3

CL3701CL3702

CL701

CL201

7/22/2019 LC320EM1

71/9013-2 FL10.3PEX

Packing

S1

S4

S3

S1

Tape

Tape

Packing Tape

Packing Tape

Packing Tape

S2

S3

S2

S9

S6

X1

Some Ref. Numbers arenot in sequence.

L9

X2

S5

X8 X6 X10

S5

StandAssembly

X4

X3

FRONTFRONT

7/22/2019 LC320EM1

72/9020100205 14-1 A01F4CA

PARTS LIST [LC320EM1 (Serial No. : DS1A)]

Mechanical Parts

PRODUCT SAFETY NOTE: Products marked with a# have special characteristics important to safety.Before replacing any of these components, read

carefully the product safety notice in this servicemanual. Don't degrade the safety of the productthrough improper servicing.

NOTE: Parts that are not assigned part numbers(---------) are not available.

Ref. No. Description Part No.

STAND ASSEMBLY A91F1UH 1ESA19883

A1 FRONT CABINET A91FNUH 1EM024585

A2 CONTROL PLATE A91F3UH 1EM325778

A5 DECORATION PLATE A01F4UH 1EM124476

A6 REAR CABINET A01F0UH 1EM025226

A8 AC CORD HOLDER A94F0UH 1EM325557A10# RATING LABEL A01F4UH ----------

A11 JACK LABEL A01F4UH 1EM430762

A13 JACK HOLDER A94F0UH 1EM123173

A15 LOGO LABEL A8A71UH ----------

B1 SHIELD BOX A01F2UH 1EM224323

B4 STAND HOLDER 32W A94F0UH 1EM222763

B5 WALL MOUNT BRACKET A84N0UH 1EM323797

B8 SPEAKER HOLDER (L) A94F0UH 1EM123233

B9 SPEAKER HOLDER (R) A94F0UH 1EM123234

B15 CLOTH(10X180XT0.5) L0336JG 0EM408827

B27 GASKET A8AF0UH 1EM425861

B44 THERMOSTAR TMS-L-2(12*12HC) XK10000X4003

CL201 WIRE ASSEMBLY 15PIN FFC 15PIN 140MM WX1A94F0-104

CL801 WIRE ASSEMBLY 2PIN 2PIN 310MM REDBLACK

WX1A94F0-202

CL802 WIRE ASSEMBLY 2PIN 2PIN 100MM REDBLACK

WX1A94F0-203




CL3902 WIRE ASSEMBLY 24PIN FFC 24PIN 117.5MM WX1A91F6-102

L1 SCREW P-TIGHT M4X14 BIND HEAD+BLK GBHP4140

L2 SCREW P-TIGHT 3X10 BIND HEAD+ GBHP3100

L6 SCREW S-TIGHT M3X8 BIND HEAD+ GBHS3080

L7 DOUBLE SEMS SCREW M4X10 + BLK FPH34100

L8 ASSEMBLED SCREW ( D9 M3X6 ) A71F0UH 1EM424392B

L9 STAND SCREW KIT A91F0UH 1ESA19881

LCD1 LCD MODULE CMO 6BIT A GRADE UJ32MXA

SP801 SPEAKER MAGNETIC S0412F06A DSD0809XQ006

SP802 SPEAKER MAGNETIC S0412F06A DSD0809XQ006

PACKING

S1 CARTON A01F4UH 1EM430758

S2 STYROFOAM TOP A91F0UH 1EM023566

S3 STYROFOAM BOTTOM A91F0UH 1EM023567

S4 SET BAG (900X850) A8AFFUH 1EM324904A

S5 SERIAL NO. LABEL A01P0UH ----------

S6 STAND BAG A94F0UH 1EM428757

S9 STAND HOLD PAD A94F1UH 1EM023746

ACCESSORIES

X1 BAG POLYETHYLENE 235X365XT0.03 0EM408420A

X2# OWNERS MANUAL A01F4UH 1EMN25720

X3 REMOTE CONTROL NH001UD NH001UD

X4 DRY BATTERY R03/2S XB0M451T0006X6 QUICK START GUIDE A01F4UH 1EMN25724

X8 CHILD SAFETY SHEET A94F1UH 1EMN24522

X10 REGISTRATION CARD (EMERSON) A91F4UH 1EMN24701


7/22/2019 LC320EM1

73/9020100205 14-2 A01F4EL

Electrical Parts

PRODUCT SAFETY NOTE: Products marked with a# have special characteristics important to safety.Before replacing any of these components, readcarefully the product safety notice in this servicemanual. Don't degrade the safety of the productthrough improper servicing.

NOTES:

1. Parts that are not assigned part numbers (---------)are not available.

2. Tolerance of Capacitors and Resistors are notedwith the following symbols.

DIGITAL MAIN CBA UNIT

MPW CBA

POWER SUPPLY CBA(MPW-1)

C.....0.25% D.....0.5% F.....1%

G.....2% J......5% K.....10%

M.....20% N.....30% Z.....+80/-20%


DIGITAL MAIN CBA UNIT A01F4MMA-001


MPW CBAConsists of the following:

A01F4MPWS001

POWER SUPPLY CBA(MPW-1)JACK CBA(MPW-2)

A01F4MPWS001-PWA01F4MPWS001-JK


POWER SUPPLY CBA(MPW-1)Consists of the following:

----------

CAPACITORS

C201 CHIP CERAMIC CAP.(1608) F Z 0.1F/25V CHD1EZ30F104



C204 ELECTROLYTIC CAP. 2.2F/50V M CE1JMASDL2R2

C207 CHIP CERAMIC CAP.(1608) B K 0.1F/16V CHD1CK30B104

C210 ELECTROLYTIC CAP. 22F/50V M CE1JMASDL220

C216 CHIP CERAMIC CAP.(1608) CH J 1000pF/50V CHD1JJ3CH102


C218 CHIP CERAMIC CAP.(1608) B K 1F/25V CHD1EK30B105

C219 ELECTROLYTIC CAP. 47F/25V M CE1EMASDL470

C221 CHIP CERAMIC CAP.(1608) B K 0.01F/50V CHD1JK30B103





C303 ELECTROLYTIC CAP. 1000F/6.3V M CE0KMASDL102

C305 CHIP CERAMIC CAP.(1608) F Z 0.1F/50V CHD1JZ30F104

C306 ELECTROLYTIC CAP. 1F/50V M CE1JMASDL1R0

C309 CHIP CERAMIC CAP.(1608) B K 0.1F/25V CHD1EK30B104




C601# CAP METALIZED FILM 0.47F/300V K 3.5MM CT2F474DC004

C602# CAP METALIZED FILM 0.47F/300V K 3.5MM CT2F474DC004

C605 CAP ELECTROLYTIC 470F/200V M CA2D471DYG07

C609 POLYESTER FILM CAP. (PB FREE) 0.047F/100V J

CA2A473DT018

C611 CERAMIC CAP. 470pF/2KV CA3D471PAN04

C612 POLYESTER FILM CAP. (PB FREE) 0.068F/

100V J

CA2A683DT018

C613 POLYESTER FILM CAP. (PB FREE) 0.0015F/100V J

CA2A152DT018

C631 ELECTROLYTIC CAP. 1000F/25V M CE1EMZNDL102


C633 CAP ALUMINUM ELECTOLYTIC 2200F/6.3VM

CE0KMZNDL222

C637 CERAMIC CAP. 2200pF/1KV CCD3AKA0R222


C639 ELECTROLYTIC CAP. 1000F/35V M CE1GMZADL102

C642 ELECTROLYTIC CAP. 0.47F/50V M CE1JMASDLR47

C644 ELECTROLYTIC CAP 3300F/16V M CE1CMZNDL332

C645 CAP ALUMINUM ELECTOLYTIC 2200F/6.3VM

CE0KMZNDL222

C646 POLYESTER FILM CAP. (PB FREE) 0.0022F/

100V J

CA2A222DT018

C647 ELECTROLYTIC CAP. 1F/50V M CE1JMASDL1R0

C648 ELECTROLYTIC CAP. 100F/10V M CE1AMASDL101

C652 ELECTROLYTIC CAP. 1000F/6.3V M CE0KMASDL102



C656 ELECTROLYTIC CAP. 100F/16V M CE1CMASDL101







C691# SAFTY CAP. 1000pF/250V KX CA2E102MR101

C693# SAFTY CAP. 1000pF/250V KX CA2E102MR101C723 CHIP CERAMIC CAP.(1608) B K 2.2F/10V CHD1AK30B225

C724 CHIP CERAMIC CAP.(1608) B K 2.2F/10V CHD1AK30B225

C731 CHIP CERAMIC CAP. CH J 39pF/50V CHD1JJ3CH390





C771 ELECTROLYTIC CAP. 100F/16V M CE1CMASDL101




C801 CHIP CERAMIC CAP. F Z 1F/10V CHD1AZ30F105


C803 CHIP CERAMIC CAP.(1608) B K 1F/25V CHD1EK30B105C804 CHIP CERAMIC CAP.(1608) B K 0.1F/25V CHD1EK30B104













7/22/2019 LC320EM1

74/9020100205 14-3 A01F4EL





C823 ELECTROLYTIC CAP. 1000F/25V M CE1EMZNDL102











C835 CHIP CERAMIC CAP. B K 560pF/50V CHD1JK30B561


C837 CHIP CERAMIC CAP. B K 560pF/50V CHD1JK30B561





C843 CHIP CERAMIC CAP.(1608) B K 0.01F/50V CHD1JK30B103C844 ELECTROLYTIC CAP. 10F/50V M CE1JMASDL100




C871 CHIP CERAMIC CAP.(1608) B K 3300pF/50V CHD1JK30B332









C880 ELECTROLYTIC CAP. 100F/16V M CE1CMASDL101C882 CHIP CERAMIC CAP.(1608) B K 2.2F/10V CHD1AK30B225




CONNECTORS

CN101 242 SERIES CONNECTOR 224202108W1 J322C08TG001

CN201 FFC CONNECTOR 15P IMSA-9615S-15A-PP-A JC96J15ER007

CN301 FFC CONNECTOR IMSA-9615S-29A-PP-A JC96J29ER007

CN302 FFC CONNECTOR IMSA-9615S-29A-PP-A JC96J29ER007

CN602 WIRE ASSEMBLY 2PIN 2PIN 145MM REDBLACK

WX1A94F0-201

CN801 PH CONNECTOR TOP 2P B2B-PH-K-S(LF)(SN)

J3PHC02JG029

CN802 PH CONNECTOR TOP 2P B2B-PH-K-S

(LF)(SN)

J3PHC02JG029

DIODES

D202 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133


D204 IC SHUNT REGULATOR KIA431-AT/P NSZBA0TJY036

D205 DIODE ZENER 24BSC-T26 NDTC024BST26




D209 DIODE ZENER 39BSB-T26 NDTB039BST26

D210 DIODE ZENER 6V2BSB-T26 NDTB6R2BST26



D303 DIODE

Documents

LC320EM1