Funai FL-9.1 Service Manual

LCD TV

chassis FL9.1

SERVICE MANUAL

Contents

32” LC320SLX SYLVANIA 32” LC320SLX SYLVANIA 32” LC320SLX SYLVANIA 32” LC320SLX SYLVANIA 32” 32MF339B/F7 MAGNAVOX 32” 32MF339B/F7 MAGNAVOX 32” 32MF339B/F7 MAGNAVOX 32” LC320SSX SYLVANIA Limited 32” LC320SSX SYLVANIA Limited 32” LC320SSX SYLVANIA Limited 32” LC320EMX EMERSON 32” LC320EMX EMERSON 32” LC320EMX EMERSON 32” LC320EMX EMERSON 32” LC320EMXF EMERSON 32” LC320EMXF EMERSON 32” LC320EMXF EMERSON 32” LC321SSX SYLVANIA Limited 32” 32MF369B/F7 MAGNAVOX

(Serial No. : DS1A**********) (Serial No. : DS2A**********) (Serial No. : DS3A**********) (Serial No. : DS4A**********) (Serial No. : DS1A**********) (Serial No. : DS2A**********) (Serial No. : DS3A**********) (Serial No. : DS1A**********) (Serial No. : DS2A**********) (Serial No. : DS3A**********) (Serial No. : DS1A**********) (Serial No. : DS2A**********) (Serial No. : DS3A**********) (Serial No. : DS4A**********) (Serial No. : DS1A**********) (Serial No. : DS2A**********) (Serial No. : DS4A**********)

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 written consent of Funai. Furthermore, any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.

Information in this document is subject to change without notice. Funai reserves the right to change the content herein 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 way without the express written consent of Funai. All other trademarks used herein remain the exclusive property of their respective owners. Nothing contained in this manual should be construed as granting, by implication or otherwise, any license or right to use any of the trademarks displayed herein. Misuse of any trademarks or any other content in this manual is strictly prohibited. Funai shall aggressively enforce its intellectual property rights to the fullest extent of the law.

A91F3UH/F0UH/F1UH/F4UH/FBUH/FEUH/F9UH/F8UH/F6UH/F7UH/FNUH/FGUH/FPUH/FFUH/FMUH/FCUH/

FDUH/FSUH/FTUH

091013

IMPORTANT SAFETY NOTICE

o

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

TABLE OF CONTENTS

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

How to Initialize the LCD TV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Block Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Schematic Diagrams / CBA and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1

SPECIFICATIONS

< TUNER / NTSC >

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

Description Condition Unit Nominal Limit

1. AFT Pull-In Range --- MHz ±2.3 ±2.1 TV.ch.4

2. Syncronizing Sens.

CA.ch.31 CA.ch.87

< TUNER / ATSC >

Description Condition Unit Nominal Limit

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

ch.4

2. ATSC Dynamic Range (min / max)

ch.10 ch.41

< LCD PANEL >

Description Condition Unit Nominal Limit

1. Native Pixel Resolusion

2. Brightness (w / filter) --- cd/m

3. Viewing Angle

Horizontal

Verti cal

Horizontal

Verti cal

dBµ dBµ dBµ

dBm dBm dBm

pixels pixels

° °

18 18 18

---

1366

768

2

320 ---

-88 to 88

20 20 23

-76/0

-76/+4

---

< VIDEO >

Description Condition Unit Nominal Limit

1. Over Scan

2. Color Temperature

3. Resolution (composite video)

Horizontal

Verti cal

--x y

Horizontal

Verti cal

% %

°K 12000

line line

5 5

0.272

0.278 400

350

5±5 5±5

--±3% ±3%

---

< AUDIO >

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

Description Condition Unit Nominal Limit

[LC320SLX, LC320EMX,

LC320EMXF]

5.0/5.0

1. Audio Output 10% Distortion (ATSC 0 dBfs)

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

3. Audio Freq. Response (NTSC)

Lch/Rch W

-

6dB: Lch

-

6dB: Rch

Hz Hz

[32MF339B/F7,

32MF369B/F7,

LC320SSX, LC321SSX]

10.0/10.0

70 to 10 k 70 to 10 k

[LC320SLX, LC320EMX,

LC320EMXF]

4.5/4.5

[32MF339B/F7,

32MF369B/F7,

LC320SSX, LC321SSX]

9.0/9.0

---

1-1 A91F3SP

IMPORTANT SAFETY PRECAUTIONS

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

Safety Precautions for LCD TV Circuit

1. Before returning an instrument to the

customer, always make a safety check of the

entire instrument, including, but not limited to, the following items:

a. Be sure that no built-in protective devices are

defective and have been defeated during servicing. (1) Protective shields are provided on this chassis to protect both the technician and the customer. Correctly replace all missing protective shields, including any removed for servicing convenience. (2) When reinstalling the chassis and/or other assembly in the cabinet, be sure to put back in place all protective devices, including but not limited to, nonmetallic control knobs, insulating fishpapers, adjustment and compartment covers/shields, and isolation resistor/capacitor networks. Do not operate this instrument or

permit it to be operated without all protective devices correctly installed and functioning. Servicers who defeat safety features or fail to perform safety checks may be liable for any resulting damage.

b. Be sure that there are no cabinet openings

through which an adult or child might be able to insert their fingers and contact a hazardous voltage. Such openings include, but are not limited to, (1) spacing between the Liquid Crystal Panel and the cabinet mask, (2) excessively wide cabinet ventilation slots, and (3) an improperly fitted and/or incorrectly secured cabinet back cover.

c. Antenna Cold Check - With the instrument AC

plug removed from any AC source, connect an electrical jumper across the two AC plug prongs. Place the instrument AC switch in the on position. Connect one lead of an ohmmeter to the AC plug prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and, if applicable, to the coaxial connector. If the measured resistance is less than 1.0 megohm or greater than 5.2 megohm, an abnormality exists that must be corrected before the instrument is returned to the customer. Repeat this test with the instrument AC switch in the off position.

d. Leakage Current Hot Check - With the

instrument completely reassembled, plug the AC line cord directly into a 120 V AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI) C101.1 Leakage Current for Appliances and Underwriters Laboratories (UL) 1410, (50.7). With the instrument AC switch first in the on position and then in the off position, measure from a known earth ground (metal water pipe, conduit, etc.) to all exposed metal parts of the instrument (antennas, handle brackets, metal cabinet, screw heads, metallic overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return path to the chassis. Any current measured must not exceed 0.5 milli-ampere. Reverse the instrument power cord plug in the outlet and repeat the test.

READING SHOULD NOT BE ABOVE 0.5 mA

LEAKAGE

DEVICE

BEING

TESTED

TEST ALL EXPOSED METAL SURFACES

ALSO TEST WITH PLUG REVERSED USING AC ADAPTER PLUG AS REQUIRED

ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE INSTRUMENT TO THE CUSTOMER OR BEFORE CONNECTING THE ANTENNA OR ACCESSORIES.

2. Read and comply with all caution and safety-

related notes on or inside the receiver cabinet, on the receiver chassis, or on the Liquid Crystal Panel.

CURRENT

TESTER

+

EARTH GROUND

_

2-1 LTVN_ISP

3. Design Alteration Warning - Do not alter or add to the mechanical or electrical design of this TV receiver. Design alterations and additions, including, but not limited to circuit modifications and the addition of items such as auxiliary audio and/or video output connections, might alter the safety characteristics of this receiver and create a hazard to the user. Any design alterations or additions will void the manufacturer's warranty and may make you, the servicer, responsible for personal injury or property damage resulting therefrom.

4. Hot Chassis Warning a. Some TV receiver chassis are electrically

connected directly to one conductor of the AC power cord and maybe safety-serviced without an isolation transformer only if the AC power plug is inserted so that the chassis is connected to the ground side of the AC power source. To confirm that the AC power plug is inserted correctly, with an AC voltmeter, measure between the chassis and a known earth ground. If a voltage reading in excess of

1.0 V is obtained, remove and reinsert the AC power plug in the opposite polarity and again measure the voltage potential between the chassis and a known earth ground.

b. Some TV receiver chassis normally have 85V

AC(RMS) between chassis and earth ground regardless of the AC plug polarity. This chassis can be safety-serviced only with an isolation transformer inserted in the power line between the receiver and the AC power source, for both personnel and test equipment protection.

c. Some TV receiver chassis have a secondary

ground system in addition to the main chassis ground. This secondary ground system is not isolated from the AC power line. The two ground systems are electrically separated by insulation material that must not be defeated or altered.

5. Observe original lead dress. Take extra care to assure correct lead dress in the following areas: a. near sharp edges, b. near thermally hot parts-be sure that leads and components do not touch thermally hot parts, c. the AC supply, d. high voltage, and, e. antenna wiring. Always inspect in all areas for pinched, out of place, or frayed wiring. Check AC power cord for damage.

6. Components, parts, and/or wiring that appear to have overheated or are otherwise damaged should be replaced with components, parts, or wiring that meet original specifications. Additionally, determine the cause of overheating and/or damage and, if necessary, take corrective action to remove any potential safety hazard.

7. Product Safety Notice - Some electrical and mechanical parts have special safety-related characteristics which are often not evident from visual inspection, nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage, wattage, etc. Parts that have special safety characteristics are identified by a # on schematics and in parts lists. Use of a substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire, and/or other hazards. The product's safety is under review continuously and new instructions are issued whenever appropriate. Prior to shipment from the factory, our products are strictly inspected to confirm they comply with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.

2-2 LTVN_ISP

Precautions during Servicing

A. Parts identified by the # symbol are critical for

safety. Replace only with part number specified.

B. In addition to safety, other parts and assemblies

are specified for conformance with regulations applying to spurious radiation. These must also be replaced only with specified replacements. Examples: RF converters, RF cables, noise blocking 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 hazardous

live 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 of wires securely about the terminals before soldering.

F. Observe that the wires do not contact heat

producing parts (heat sinks, oxide metal film resistors, fusible resistors, etc.)

G. Check that replaced wires do not contact sharp

edged 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, solder

droplets, etc.) do not remain inside the set.

K. When connecting or disconnecting the internal

connectors, first, disconnect the AC plug from the AC supply outlet.

L. When installing parts or assembling the cabinet

parts, be sure to use the proper screws and tighten certainly.

2-3 LTVN_ISP

Safety Check after Servicing

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

1. Clearance Distance

When replacing primary circuit components, confirm specified clearance distance (d) and (d') between soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)

Table 1: Ratings for selected area

Chassis or Secondary Conductor

Primary Circuit

AC Line Voltage Region

110 to 130 V

Note: This table is unofficial and for reference only. Be

sure to confirm the precise values.

U.S.A. or

Canada

Clearance

Distance (d), (d’)

≥ 3.2 mm

(0.126 inches)

2. Leakage Current Test

Confirm the specified (or lower) leakage current between B (earth ground, power cord plug prongs) and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.) is lower than or equal to the specified value in the table below.

Measuring Method: (Power ON)

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

d' d

Fig. 1

Exposed Accessible Part

Z

AC Voltmeter (High Impedance)

Earth Ground

B

Power Cord Plug Prongs

Table 2: Leakage current ratings for selected areas

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

110 to 130 V

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

U.S.A. or

Canada

0.15 µF CAP. & 1.5 kΩ

RES. Connected in parallel

2-4 LTVN_ISP

i ≤ 0.5 mA rms

Fig. 2

Exposed accessible

parts

STANDARD NOTES FOR SERVICING

Circuit Board Indications

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

Top View

Out

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

Pin 1

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

Pin 1

Input

In

Bottom View

5

10

Pb (Lead) Free Solder

Pb free mark will be found on PCBs which use Pb free solder. (Refer to figure.) For PCBs with Pb free mark, be sure to use Pb free solder. For PCBs without Pb free mark, use standard solder.

Pb free mark

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)

Fig. S-1-1

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

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

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

CAUTION:

1. The Flat Pack-IC shape may differ by models. Use an appropriate hot-air flat pack-IC desoldering machine, whose shape matches that of the Flat Pack-IC.

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

3-1 TVN_SN

3. The flat pack-IC on the CBA is affixed with glue, so be careful not to break or damage the foil of each pin or the solder lands under the IC when removing it.

With Soldering Iron:

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

CBA

Masking Tape

Tweezers

Hot-air Flat Pack-IC Desoldering Machine

Flat Pack-IC

Fig. S-1-2

Flat Pack-IC

Desoldering Braid

Soldering Iron

Fig. S-1-3

2. Lift each lead of the flat pack-IC upward one by one, using a sharp pin or wire to which solder will not adhere (iron wire). When heating the pins, use a fine tip soldering iron or a hot air desoldering machine. (Fig. S-1-4)

Sharp Pin

Fine Tip Soldering Iron

Fig. S-1-4

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

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

3-2 TVN_SN

With Iron Wire:

1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux 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 mounting point, 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 solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5.

4. Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)

5. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)

Note: When using a soldering iron, care must be

taken to ensure that the flat pack-IC is not being held by glue. When the flat pack-IC is removed from the CBA, handle it gently because it may be damaged if force is applied.

Hot Air Blower

2. Installation

1. Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA so you can install a replacement flat pack-IC more easily.

2. The “●” mark on the flat pack-IC indicates pin 1. (See Fig. S-1-7.) Be sure this mark matches the pin 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 that none of the pins have solder bridges.

Example :

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

Fig. S-1-7

To Solid Mounting Point

CBA

Tweezers

Iron Wire

Soldering Iron

Fig. S-1-5

Fine Tip Soldering Iron

Flat Pack-IC

or

Presolder

Flat Pack-IC

CBA

Fig. S-1-8

Fig. S-1-6

3-3 TVN_SN

Instructions for Handling Semiconductors

Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work.

1. Ground for Human Body

Be sure to wear a grounding band (1 MΩ) that is properly grounded to remove any static electricity that may be charged on the body.

2. Ground for Workbench

Be sure to place a conductive sheet or copper plate with proper grounding (1 MΩ) on the workbench or other surface, where the semi-conductors are to be placed. Because the static electricity charge on clothing will not escape through the body grounding band, be careful to avoid contacting semi-conductors with your clothing.

1MΩ

CBA

Grounding Band

1MΩ

CBA

Conductive Sheet or Copper Plate

3-4 TVN_SN

CABINET DISASSEMBLY INSTRUCTIONS

[LC320SLX, 32MF339B/F7, LC320SSX, LC320EMXF]

1. Disassembly Flowchart

This flowchart indicates the disassembly steps for the cabinet parts, and the CBA in order to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route and dress the cables as they were.

[1] Stand

Assembly

[10] Junction CBA

[2] Rear Cabinet

[3] Inverter CBA

[4] Jack CBA

[5] Power Supply CBA

[6] Jack Holder

[7] Digital Main CBA Unit

[8] Speaker Holder (L,R)

[9] Speaker(s)

[11] IR Sensor CBA

[12] Function CBA

Removal

Step/

Loc.

No.

Part

Fig.

Remove/*Unhook/

Unlock/Release/

No.

Unplug/Unclamp/

Desolder

[LC320SLX (Serial No. : DS3A**********)]

[3]

Inverter CBA

6(S-5), *CN1001,

D2

*CN1005, *CN1050,

D4

*CN1100, *CN1150, *CN1200, *CN1900

[4] Jack CBA

Power

[5]

Supply CBA

D2

2(S-6), *CL701B ---

D4

7(S-7), *CN101,

D2

*CN301, *CN302,

D4

*CN801, *CN802

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

Digital Main

[7]

CBA UnitD2D4

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

Speaker

[8]

Holder

D3 *Hook ---

(L,R)

Note

---

[13] LCD Module Assembly

[14] Front Cabinet

2. Disassembly Method

Removal

Step/

Loc.

Part

No.

Stand

[1]

Assembly Rear

[2]

Cabinet [LC320SLX (Serial No. : DS1A**********),

LC320SLX (Serial No. : DS2A**********), LC320SLX (Serial No. : DS4A**********), 32MF339B/F7, LC320SSX, LC320EMXF]

[3]

Inverter CBA

Remove/*Unhook/

Fig.

No.

Unlock/Release/

Unplug/Unclamp/

Desolder

D1 4(S-1) ---

D1 13(S-2), 2(S-3), 3(S-4) ---

6(S-5), *CN1001,

D2

*CN1003, *CN1050,

D4

*CN1100, *CN1150, *CN1200, *CN1900

Note

---

[9] Speaker(s) D3 8(S-12) ---

[10]

[11]

[12]

Junction CBA

IR Sensor CBA

Function CBA

D3

Desolder ---

D4 D3

2(S-13), *CL103C ---

D4 D3

2(S-14) ---

D4

LCD

[13]

Module

D3 (S-15) ---

Assembly Front

[14]

↓

(1)

Cabinet

↓

(2)

D3 --------------- ---

↓

(3)

↓

(4)

↓

(5)

Note:

(1) Order of steps in procedure. When reassembling,

follow the steps in reverse order. These numbers are also used as the Identification (location) No. of parts 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, or desoldered.

4-1 A91F3DC

P = Spring, L = Locking Tab, S = Screw, H = Hex Screw, CN = Connector * = Unhook, Unlock, Release, Unplug, or Desolder

e.g. 2(S-2) = two Screws (S-2), 2(L-2) = two Locking Tabs (L-2)

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

Ta bl e ."

(S-2)

[2] Rear Cabinet

[1] Stand Assembly

(S-2)

(S-1)

(S-3)

(S-4)

(S-2)

(S-4)

(S-2)

Fig. D1

4-2 A91F3DC

[3] Inverter CBA

(S-5)

(S-11)

[7] Digital Main CBA Unit

(S-8)

[4] Jack CBA

Shield Box

[6] Jack Holder

(S-6)

(S-9)

(S-10)

(S-9)

(S-7)

(S-5)

[5] Power Supply CBA

Fig. D2

4-3 A91F3DC

[14] Front Cabinet

[13] LCD Module Assembly

Hook

[10] Junction CBA

(S-12)

[9] Speaker

[8] Speaker Holder (L)

(S-15)

Hook

[8] Speaker Holder (R)

[11] IR Sensor CBA

(S-13)

(S-12)

[9] Speaker

[12] Function CBA

(S-14)

Fig. D3

4-4 A91F3DC

TV Cable Wiring Diagram

Jack CBA

Inverter CBA

CN1050

Power Supply CBA

CL701B

CN302

CN301

CN101

Digital Main CBA Unit

CL701A

CN802

To Speaker

CN801

CN201

CN602

AC CORD

CN1100

CN1001

CN1150

CN1900

CN1005

*2

CN1003

CN1200

*1

To LCD Module Assembly

*1 LC320SLX (Serial No. : DS1A**********),

LC320SLX (Serial No. : DS2A**********), LC320SLX (Serial No. : DS4A**********), 32MF339B/F7, LC320SSX, LC320EMXF

CN3702

CN3701

CN3902

To LCD Module Assembly

Junction CBA

CN101

CL102A

IR Sensor CBA

CL103C

4-5 A91F3DC

*2 LC320SLX (Serial No. : DS3A**********)

Function CBA

CL103B

CL101B

Fig. D4

CABINET DISASSEMBLY INSTRUCTIONS

[LC320EMX]

1. Disassembly Flowchart

This flowchart indicates the disassembly steps for the cabinet parts, and the CBA in order to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route and dress the cables as they were.

[1] Stand

Assembly

[12] Junction CBA

[2] Rear Cabinet

[3] Inverter CBA

[4] Jack CBA

[5] Power Supply CBA

[6] Jack Holder

[7] Digital Main CBA Unit

[9] Speaker Holder(s) [R]

[10] Speaker Holder(s) [L]

[11] Speaker(s)

[13] IR Sensor CBA

[14] Function CBA

Removal

Step/

Loc.

No.

Part

Fig.

Remove/*Unhook/

Unlock/Release/

No.

Unplug/Unclamp/

Desolder

[LC320EMX (Serial No. : DS3A**********)]

[3]

Inverter CBA

6(S-5), *CN1001,

D2

*CN1005, *CN1050,

D4

*CN1100, *CN1150, *CN1200, *CN1900

[4] Jack CBA

Power

[5]

Supply CBA

D2

2(S-6), *CL701B ---

D4

7(S-7), *CN101,

D2

*CN301, *CN302,

D4

*CN801, *CN802

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

Digital Main

[7]

CBA UnitD2D4

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

LCD

[8]

Module

D3 (S-12) ---

Assembly

Note

---

[8] LCD Module Assembly

[15] Front Cabinet

2. Disassembly Method

Removal

Step/

Loc.

Part

No.

Stand

[1]

Assembly Rear

[2]

Cabinet [LC320EMX (Serial No. : DS1A**********),

LC320EMX (Serial No. : DS2A**********), LC320EMX (Serial No. : DS4A**********)]

[3]

Inverter CBA

Remove/*Unhook/

Fig.

No.

Unlock/Release/

Unplug/Unclamp/

Desolder

D1 4(S-1) ---

D1 13(S-2), 2(S-3), 3(S-4) ---

6(S-5), *CN1001,

D2

*CN1003, *CN1050,

D4

*CN1100, *CN1150, *CN1200, *CN1900

Note

---

Speaker

[9]

Holder(s)

D3 2(S-13) ---

[R] Speaker

[10]

Holder(s)

D3 2(S-14) ---

[L]

[11] Speaker(s) D3 --------------- ---

[12]

[13]

[14]

[15]

↓

(1)

Junction CBA

IR Sensor CBA

Function CBA

Front Cabinet

↓

(2)

D3

Desolder ---

D4 D3

2(S-15), *CL103C ---

D4 D3

--------------- ---

D4

D3 --------------- ---

↓

(3)

↓

(4)

↓

(5)

Note:

(1) Order of steps in procedure. When reassembling,

follow the steps in reverse order. These numbers are also used as the Identification (location) No. of parts in figures.

(2) Parts to be removed or installed. (3) Fig. No. showing procedure of part location

4-6 A91F4DC

(4) Identification of parts to be removed, unhooked,

unlocked, released, unplugged, unclamped, or desoldered. P = Spring, L = Locking Tab, S = Screw, H = Hex Screw, CN = Connector * = Unhook, Unlock, Release, Unplug, or Desolder

e.g. 2(S-2) = two Screws (S-2), 2(L-2) = two Locking Tabs (L-2)

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

Ta bl e ."

[2] Rear Cabinet

[1] Stand Assembly

(S-2)

(S-3)

(S-2)

(S-4)

(S-2)

(S-4)

(S-2)

(S-1)

Fig. D1

4-7 A91F4DC

[3] Inverter CBA

(S-5)

(S-11)

[7] Digital Main CBA Unit

(S-8)

[4] Jack CBA

Shield Box

[6] Jack Holder

(S-6)

(S-9)

(S-10)

(S-9)

(S-7)

(S-5)

[5] Power Supply CBA

Fig. D2

4-8 A91F4DC

[15] Front Cabinet

[10] Speaker Holder(s) [L]

[9] Speaker Holder(s) [R]

(S-13)

[11] Speaker

(S-14)

(S-13)

[11] Speaker

(S-14)

[12] Junction CBA

(S-15)

[14] Function CBA

[13] IR Sensor CBA

(S-12)

[8] LCD Module Assembly

Fig. D3

4-9 A91F4DC

TV Cable Wiring Diagram

Jack CBA

Inverter CBA

CN1050

Power Supply CBA

CL701B

CN302

CN301

CN101

Digital Main CBA Unit

CL701A

CN802

To Speaker

CN801

CN201

CN602

AC CORD

*1 LC320EMX (Serial No. : DS1A**********),

CN1100

CN1001

CN1150

CN1900

CN1005

*2

CN1003

CN1200

*1

To LCD Module Assembly

LC320EMX (Serial No. : DS2A**********), LC320EMX (Serial No. : DS4A**********)

CN3702

CN3701

CN3902

To LCD Module Assembly

Junction CBA

CN101

CL102A

IR Sensor CBA

CL103C

4-10 A91F4DC

*2 LC320EMX (Serial No. : DS3A**********)

Function CBA

CL103B

CL101B

Fig. D4

CABINET DISASSEMBLY INSTRUCTIONS

[LC321SSX, 32MF369B/F7]

1. Disassembly Flowchart

This flowchart indicates the disassembly steps for the cabinet parts, and the CBA in order to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route and dress the cables as they were.

[1] Stand

Assembly

[10] Junction CBA

[2] Rear Cabinet

[3] Inverter Power CBA

[4] Jack CBA

[5] Power Supply CBA

[6] Jack Holder

[7] Digital Main CBA Unit

[13] LCD Module Assembly

[14] Front Cabinet

[8] Speaker Holder[s] (L,R)

[9] Speaker[s]

[11] IR Sensor CBA

[12] Function CBA

2. Disassembly Method

Removal

Step/

Loc.

Part

No.

Stand

[1]

Assembly Rear

[2]

Cabinet Inverter

[3]

Power CBAD2D4

[4] Jack CBA

Remove/*Unhook/

Fig.

No.

Unlock/Release/

Unplug/Unclamp/

Note

Desolder

D1 4(S-1) ---

D1 13(S-2), 2(S-3), 3(S-4) ---

5(S-5), *CN1001, *CN1003, *CN1900

D2

2(S-6), *CL701B ---

D4

---

Removal

Step/

Loc.

No.

Part

Fig.

Remove/*Unhook/

Unlock/Release/

No.

Unplug/Unclamp/

Note

Desolder

Digital Main

[7]

CBA UnitD2D4

2(S-9), 2(S-10), 4(S-11), *CN3901, Shield Box

---

Speaker

[8]

Holder[s]

D3 *Hook, 8(S-12) ---

(L,R)

[9] Speaker[s] D3 --------------- ---

[10]

[11]

[12]

[13]

[14]

↓

(1)

Junction CBA

IR Sensor CBA

Function CBA

LCD Module Assembly

Front Cabinet

↓

(2)

D3

Desolder ---

D4 D3

2(S-13), *CL103C ---

D4 D3

2(S-14) ---

D4

4(S-15), PCB Holder,

D3

Stand Holder

---

D3 --------------- ---

↓

(3)

↓

(4)

↓

(5)

Note:

(1) Order of steps in procedure. When reassembling,

follow the steps in reverse order. These numbers are also used as the Identification (location) No. of parts 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, or desoldered. P = Spring, L = Locking Tab, S = Screw, H = Hex Screw, CN = Connector * = Unhook, Unlock, Release, Unplug, or Desolder e.g. 2(S-2) = two Screws (S-2), 2(L-2) = two Locking Tabs (L-2)

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

Ta bl e ."

[5]

Power Supply CBA

7(S-7), *CN101,

D2

*CN301, *CN302,

D4

*CN801, *CN802

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

---

4-11 A91FSDC

(S-2)

(S-4)

(S-2)

[2] Rear Cabinet

[1] Stand Assembly

(S-2)

(S-1)

(S-2)

(S-3)

(S-4)

(S-2)

Fig. D1

4-12 A91FSDC

(S-11)

(S-5)

[3] Inverter Power CBA

(S-7)

[7] Digital Main CBA Unit

(S-8)

(S-6)

Shield Box

(S-9)

[4] Jack CBA

[6] Jack Holder

(S-9)

(S-10)

(S-7)

[5] Power Supply CBA

Fig. D2

4-13 A91FSDC

[14] Front Cabinet

[13] LCD Module Assembly

PCB Holder

(S-15)

Stand Holder

(S-15)

Hook

[10] Junction CBA

(S-12)

[9] Speaker

[8] Speaker Holder (L)

Hook

[8] Speaker Holder (R)

[11] IR Sensor CBA

(S-13)

(S-12)

[9] Speaker

[12] Function CBA

(S-14)

Fig. D3

4-14 A91FSDC

TV Cable Wiring Diagram

Jack CBA

CL701B

To LCD Module Assembly

Power Supply CBA

Inverter Power CBA

CL701A

CN302

CN301

CN101

Digital Main CBA Unit

CN3702

CN802

To Speaker

Junction CBA

CN801

CN201

CN602

AC CORD

CN1001

CN1900

CN1003

CN3701

CN3901

To LCD Module Assembly

CN101

CL102A

IR Sensor CBA

CL103C

4-15 A91FSDC

Function CBA

CL103B

CL102B

Fig. D4

ELECTRICAL ADJUSTMENT INSTRUCTIONS

General Note: “CBA” is abbreviation for “Circuit Board Assembly.”

Note: Electrical adjustments are required after

replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replacements have been completed. Also, do not attempt these adjustments unless the proper equipment is available.

Test Equipment Required

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

2. Remote control unit

3. Color Analyzer

How to make the Service remote control unit:

LC320SLX, LC320EMX, LC320EMXF

[

Cut “A” portion of the attached remote control unit as shown in Fig. 1.

service button (There is a button under the plastic housing.)

]

[LC320SSX, LC321SSX]

Cut “A” portion of the attached remote control unit as shown in Fig. 3

service button

A

Fig. 3

How to set up the service mode:

Service mode:

1. Use the service remote control unit.

2. Turn the power on.

3. Press the service button on the service remote control unit. The following screen appears.

"*" differs depending on the models.

Code :

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

Pic code :

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

MIPS :

Push 0key

A

[32MF339B/F7, 32MF369B/F7]

Cut “A” portion of the attached remote control unit as shown in Fig. 2.

service button (There is a button under the plastic housing.)

A

Fig. 1

Fig. 2

Tuner :

****-*****-**** safety_Non

Safety :

5-1 FL9.1EA

1. Purity Check Mode

2. VCOM Adjustment

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 service remote control unit, the display changes as follows.

Purity Check Mode

White mode

[7] button

Black mode

[7] button

Red mode

[7] button

Green mode

[7] button

Blue mode

Test Point Adj. Point

Screen

[CHANNEL UP/DOWN ]

buttons

M. EQ. Spec.

Color analyzer See below

Figure

To avoid interference from ambinent light, this adjustment should be performed in a dark room.

Perpendicularity

L = 3 cm

Color Analyzer

Note: LC321SSX, 32MF369B/F7: VCOM adjustment

is not required.

1. Operate the unit for more than 20 minutes.

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

3. Enter the Service mode.

4. Press [3] button on the service remote control unit. [LC320SLX (Serial No. : DS1A**********), LC320SLX (Serial No. : DS2A**********), LC320SLX (Serial No. : DS4A**********), 32MF339B/F7, LC320SSX, LC320EMXF LC320EMX (Serial No. : DS1A**********), LC320EMX (Serial No. : DS2A**********), LC320EMX (Serial No. : DS4A**********)]

[7] button

White 20% mode

Note:

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

Press [2] button on the service remote control unit. [LC320EMX (Serial No. : DS3A**********), LC320SLX (Serial No. : DS3A**********)]

5. Press [CHANNEL UP/DOWN] buttons on the service remote control unit so that the color analyzer value becomes minimum.

5-2 FL9.1EA

The white balance adjustment should be performed when replacing the LCD Panel or Digital CBA.

3. White Balance Adjustment

Purpose: To mix red, green and blue beams correctly

for pure white. Symptom of Misadjustment: White becomes bluish

or reddish.

Test Point

Screen

Adj. Point Mode Input

[VOLUME

DOWN]

button

[VIDEO1]

C/D

M. EQ. Spec.

White Raster

(APL 70%)

or

(APL 40%)

5. [CUTOFF] Press [1] button to select “COR” for Red Cutoff adjustment. Press [3] button to select “COB” for Blue Cutoff adjustment.

[DRIVE]

Press [4] button to select “DR” for Red Drive adjustment. Press [6] button to select “DB” for Blue Drive 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 color temperature becomes 12000°K (x

=

0.272 / y

=

0.278 ±0.005).

Pattern Generator,

Color analyzer

x= 0.272 ± 0.005 y= 0.278 ± 0.005

Figure

To avoid interference from ambinent light, this adjustment should be performed in a dark room.

Perpendicularity

L = 3 cm

INPUT: WHITE 70%, 40%

Color Analyzer

1. Operate the unit for more than 20 minutes.

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

INPUT SIGNAL

0IRE 0IRE

Low

Hight

Light

100IRE

40%=40IRE

70%=70IRE

3. Set the color analyzer to the CHROMA mode and bring the optical receptor to the center on the LCD-Panel surface after zero point calibration as shown above. Note: The optical receptor must be set perpendicularly to the LCD Panel surface.

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

100IRE

5-3 FL9.1EA

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 to select 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. To enter the service mode, press the service button on the service remote control unit.

- To cancel the service mode, press [POWER]

button on the service remote control unit.

3. Press [INFO] button on the service remote control unit to initialize the LCD television.

4. "INITIALIZED" will appear in the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is complete.

6-1 A91F3INT

FIRMWARE RENEWAL MODE

Equipment Required

a. USB memory b. Remote Control Unit

Firmware Update Procedure

Note: There are two states (the User Upgrade and

the Factory Upgrade) in firmware update.

User Upgrade Upgrade the firmware only.

The setting values are not initialized.

Factory upgrade Upgrade the firmware and

initialize the setting values.

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

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

2. Insert the USB memory to the USB port as shown below.

Rear Cabinet

USB Memory

The appearance shown in *1 is described as follows.

Appearance State

Downloading...

Writing...

Downloading the firmware from the USB memory.

Writing the downloaded firmware in flash memory.

Checking... Checking the new firmware.

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

Software Upgrade

The software upgrade is completed. Remove USB storage device, unplug and replug power code.

Unplug the AC cord and kindly remove the USB memory from the USB port. Plug the AC cord in the wall outlet again and turn the power on.

Note:

When the Factory Upgrade is used, after restarting TV, shift to initial screen menu in service mode. "INITIALIZED" will appear on the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is complete.

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

4. The update will start and the following will appear on the screen.

Software Upgrade

Software upgrade in progress. Please wait. Do not remove the USB device or turn the TV off while upgrade is in progress.

*1

Downloading...

0%

Note: If the above screen isn’t displayed, repeat from

step 1.

7-1 A91F3FW

TROUBLESHOOTING

[ Power Supply Section ] (LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF)

FLOW CHART NO.1

The power cannot be turned on.

Is the fuse (F601) normal?

Ye s

Is normal state restored when once unplugged power cord is plugged again several seconds?

Ye s

Is the AL+33V line voltage normal?

Ye s

Check each rectifying circuit of the secondary circuit and service it if defective.

FLOW CHART NO.2

The fuse blows out.

Check the presence that the primary component is leaking or shorted and service it if defective.

After servicing, replace the fuse.

FLOW CHART NO.3

When the output voltage fluctuates.

No

See FLOW CHART No.2 <The fuse blows out.>

Check if there is any leak or short-circuiting on the primary circuit component, and service it if defective. (C605, D601, D602, D603, D604, Q601, Q602, T601)

Check the presence that the rectifying diode or circuit is shorted in each rectifying circuit of secondary side, and service it if defective.

Does the photocoupler circuit on the secondary side operate normally?

Ye s

Check IC601, D609, D611 and their periphery, circuit and service it if defective.

FLOW CHART NO.4

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

Check if there is any short-circuit on the rectifying diode and the circuit and service it if defective. (IC631, Q207, Q209, Q210, Q2 D631, D632, D633, D638, D641, D642, D646, D647)

FLOW CHART NO.5

AL+33V is not output.

Is approximately +34V voltage supplied to the cathode of D638?

Ye s

Check D657, R661 and their periphery circuit, and service it if defective.

No

11, Q501, Q635, Q636, Q637, Q640, Q641, Q642, Q643,

No

Check IC601, D652, Q631 and their periphery circuit, and service it if defective.

in each rectifying circuit of the secondary side,

Check C638, D638, D639 and their periphery circuit, and service it if defective.

8-1 A91F3TR

FLOW CHART NO.6

LCD+24.5V is not output.

Is approximately +30V voltage supplied to the collector of Q210?

Ye s

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

FLOW CHART NO.7

LCD+16V is not output.

Is approximately +19V voltage supplied to the collector of Q209?

Ye s

Is approximately +16V voltage supplied to the base of Q209?

Ye s

Replace Q209.

FLOW CHART NO.8

INV+16V is not output.

No

See FLOW CHART No.5

Check C631, D631, D635 and their periphery circuit, and service it if defective.

Check Q207, Q208, D203, D204, D211 and their periphery circuit, and service it if defective.

Is approximately +19V voltage supplied to the collector of Q501?

Ye s

Is approximately +16V voltage supplied to the base of Q501?

Ye s

Replace Q501.

FLOW CHART NO.9

P-ON+7V is not output.

Is approximately +7V voltage supplied to the collector o

f D646?

Ye s

Check if there is any leak or short-circuit on the loaded circuit, and service it if defective.

No

Check C631, D631, D635 and their periphery circuit, and service it if defective.

Check Q207, Q208, D203, D204, D211 and their periphery circuit, and service it if defective.

Check C644, D646 and their per

iphery circuit,

and service it if defective.

8-2 A91F3TR

FLOW CHART NO.10

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

Is approximately +6.8V voltage supplied to the

No

collector of Q643?

Ye s

Is approximately +6V voltage supplied to the

No

base of Q641 and the base of Q643?

Ye s

Replace Q641 and Q643.

FLOW CHART NO.11

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

Is approximately +6.7V voltage supplied to the

No

collector of Q640?

Ye s

Is approximately +6V voltage supplied to the

No

base of Q641 and the base of Q643(Q640)?

Ye s

Replace Q641 and Q643(Q640).

See FLOW CHART No.9

Check D645 and their periphery circuit, and service it if defective.

See FLOW CHART No.9

Check D645 and their periphery circuit, and service it if defective.

FLOW CHART NO.12

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

Is approximately +13V voltage supplied to the cathode of D641 and D642?

Ye s

Check if there is any leak or short-circuit on the loaded circuit, and service it if defective.

FLOW CHART NO.13

P-ON+3V is not output.

Is approximately +3V voltage supplied to the cathode of D647?

Ye s

Check if there is any leak or short-circuit on the loaded circuit, and service it if defective.

No

Check C639, D642 and their per

iphery circuit, and

service it if defective.

Check C645, D647 and their periphery circuit, and service it if defective.

8-3 A91F3TR

FLOW CHART NO.14

P-ON+3.3V is not output.

Is approximately +5V voltage supplied to the cathode of D633?

Ye s

Is the "H" signal (approximately +3.5V) inputted to the base of Q637?

Ye s

Replace Q637.

FLOW CHART NO.15

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

Is approximately +13V voltage supplied to the collector of Q642?

Ye s

Is approximately +10V voltage supplied to the base of Q642?

Ye s

Replace Q642.

No

Check C633, D633 and their periphery circuit, and service it if defective.

Check Q638, Q639, P-ON-H2 line and their periphery circuit, and service it if defective.

See FLOW CHART No.12

Check D670 and their periphery circuit, and service it if defective.

FLOW CHART NO.16

AL+3.3V is not output.

Is approximately +34V voltage supplied to the collector of Q635?

Ye s

Is approximately +5V voltage supplied to Pin(1) of IC631?

Ye s

Replace IC631.

FLOW CHART NO.17

LCD-6.8V is not output.

Is approximately -9V voltage supplied to the Anode of D632?

Ye s

Is approximately -8V voltage supplied to the base of Q211?

Ye s

No

See FLOW CHART No.5

Check Q635, D659 and their periphery circuit, and service it if defective.

Check C632, D632 and their periphery circuit, and service it if defective.

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

Replace Q211.

8-4 A91F3TR

[ Power Supply Section ] (LC321SSX, 32MF369B/F7)

FLOW CHART NO.1

The power cannot be turned on.

Is the fuse (F601) normal?

Ye s

Is normal state restored when once unplugged power cord is plugged again several seconds?

Ye s

Is the AL+33V line voltage normal?

Ye s

Check each rectifying circuit of the secondary circuit and service it if defective.

FLOW CHART NO.2

The fuse blows out.

Check the presence that the primary component is leaking or shorted and service it if defective.

After servicing, replace the fuse.

FLOW CHART NO.3

When the output voltage fluctuates.

No

See FLOW CHART No.2 <The fuse blows out.>

Check if there is any leak or short-circuiting on the primary circuit component, and service it if defective. (C605, D601, D602, D603, D604, Q601, Q602, T601)

Check the presence that the rectifying diode or circuit is shorted in each rectifying circuit of secondary side, and service it if defective.

Does the photocoupler circuit on the secondary side operate normally?

Ye s

Check IC601, D609, D611 and their periphery, circuit and service it if defective.

FLOW CHART NO.4

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

Check if there is any short-circuit on the rectifying diode and the circuit and service it if defective. (IC631, Q209, Q635, Q636 D646, D647)

FLOW CHART NO.5

AL+33V is not output.

Is approximately +34V voltage supplied to the cathode of D638?

Ye s

Check D657, R661 and their periphery circuit, and service it if defective.

No

, Q637, Q640, Q641, Q642, D631, D633, D638, D641, D642,

No

Check IC601, D652, Q631 and their periphery circuit, and service it if defective.

in each rectifying circuit of the secondary side,

Check C638, D638, D639 and their periphery circuit, and service it if defective.

8-5 A91F3TR

FLOW CHART NO.6

LCD+12V is not output.

Is approximately +14V voltage supplied to the collector of Q209?

Ye s

Is approximately +12V voltage supplied to the base of Q209?

Ye s

Replace Q209.

FLOW CHART NO.7

P-ON+6.7V is not output.

Is approximately +6.7V voltage supplied to the collector of D646?

Ye s

Check if there is any leak or short-circuit on the loaded circuit, and service it if defective.

FLOW CHART NO.8

P-ON+5V is not output. (P-ON+6.7V is outputted normally.)

Is approximately +6V voltage supplied to the base of Q641 and the base of Q643?

Ye s

No

Check C631, D631, D635 and their periphery circuit, and service it if defective.

Check Q207, Q208, D204, D211 and their periphery circuit, and service it if defective.

Check C644, D646 and their per

iphery circuit,

and service it if defective.

Check D645 and their periphery circuit, and service it if defective.

Replace Q641 and Q643.

FLOW CHART NO.9

TUNER+5V is not output. (P-ON+6.7V is outputted normally.)

Is approximately +6V voltage supplied to the base of Q640?

Ye s

Replace Q640.

FLOW CHART NO.10

AL+13V is not output.

Is approximately +13V voltage supplied to the cathode of D641 and D642?

Ye s

Check if there is any leak or short-circuit on the loaded circuit, and service it if defective.

No

Check D645 and their periphery circuit, and service it if defective.

Check C639, D641, D642 and their periphery circuit, and service it if defective.

8-6 A91F3TR

FLOW CHART NO.11

P-ON+3V is not output.

Is approximately +3V voltage supplied to the cathode of D647?

Ye s

Check if there is any leak or short-circuit on the loaded circuit, and service it if defective.

FLOW CHART NO.12

P-ON+3.3V is not output.

Is approximately +5V voltage supplied to the cathode of D633?

Ye s

Is the "H" signal (approximately +3.5V) inputted to the base of Q637?

Ye s

Replace Q637.

FLOW CHART NO.13

P-ON+9V is not output. (LCD+12V is outputted normally.)

No

Check C645, D647 and their periphery circuit, and service it if defective.

Check C633, D633 and their periphery circuit, and service it if defective.

Check Q638, Q639, P-ON-H2 line and their periphery circuit, and service it if defective.

Is approximately +13V voltage supplied to the collector of Q642?

Ye s

Is approximately +10V voltage supplied to the base of Q642?

Ye s

Replace Q642.

FLOW CHART NO.14

AL+3.3V is not output.

Is approximately +34V voltage supplied to the collector of Q635?

Ye s

Is approximately +5V voltage supplied to Pin(3) of IC631?

Ye s

Replace IC631.

No

See FLOW CHART No.10

Check D670 and their periphery circuit, and service it if defective.

See FLOW CHART No.5

Check Q635, D659 and their periphery circuit, and service it if defective.

8-7 A91F3TR

[ Video Signal Section ]

FLOW CHART NO.1 [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMXF, LC321SSX, 32MF369B/F7]

The key operation is not functioning.

Are the contact point and installation state of the key switches (SW101A, SW103A~SW107A) nor

Ye s

When pressing each switches (SW101A, SW103A~ SW107A) do the voltage of Pin(29) of CN302 and Pin(2) of CN303 increase?

Ye s

Replace Digital Main CBA Unit.

FLOW CHART NO.1 [LC320EMX]

The key operation is not functioning.

Are the contact point and installation state of the key switches (SW101B, SW103B~SW107B) normal?

Ye s

When pressing each switches (SW101B, SW103B~ SW107B) do the voltage of Pin(29) of CN302 and Pin(2) of CN303 increase?

Ye s

Replace Digital Main CBA Unit.

mal?

No

Re-install the switches (SW101A, SW103A~SW107A) correctly or replace the poor switch.

Check the switches (SW101A, SW103A~SW107A) and their periphery, and service it if defective.

Re-install the switches (SW101B, SW103B~SW107B) correctly or replace the poor switch.

Check the switches (SW101B, SW103B~SW107B) and their periphery, and service it if defective.

FLOW CHART NO.2

No operation is possible from the remote control unit.

Operation is possible from the remote control unit.

Is 3.3V voltage supplied to Pin(2) terminal of the remote control receiver (RS102)?

Ye s

Is the "L" pulse sent out Pin(1) terminal of remote control receiver (RS102) when the infrared remote

control is activated?

Ye s

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

Ye s

Replace Digital Main CBA Unit.

FLOW CHART NO.3

Picture does not appear normally.(Video input)

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

Ye s

Replace Digital Main CBA Unit or LCD Module Assembly.

No

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

Replace the remote control receiver(RS102) or the remote control unit.

Check the line between Pin(1) terminal of remote control receiver(RS102) and Pin(25) of CN301, and service it if defective.

Check the line between Pin(4) of CN302 and JK752, and service it if defective.

8-8 A91F3TR

FLOW CHART NO.4

Picture does not appear normally.(Tuner input)

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

Ye s

Replace Digital Main CBA Unit or LCD Module Assembly.

FLOW CHART NO.5

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

Are the video signal outputted to the Pin(6, 8) of CN302?

Pin(6): S-VIDEO-C Pin(8): S-VIDEO-Y

Ye s

Replace Digital Main CBA Unit or LCD M

odule

Assembly.

FLOW CHART NO.6

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

No

Check the line between Pin(26, 28) of CN302 and Pin(10, 11) of TU301, and service it if defective.

Check the line between Pin(6, 8) of CN302 and JK751, and service it if defective.

Are the video signal inputted to the Pin(15, 17, 19) of CN302?

Pin(15): VIDEO-Y Pin(17): VIDEO-Pb Pin(19): VIDEO-Pr

Ye s

Replace Digital Main CBA Unit or LCD Module Assembly.

No

Check the line between Pin(15, 17, 19) of CN302 and input terminals(JK731, JK732, JK733), and service it if defective.

8-9 A91F3TR

[ Audio Signal Section ]

FLOW CHART NO.1

Audio is not outputted normally.(Audio input)

Are the audio(L/R) signals inputted to Pin(2, 15) of IC771?

Ye s

Are the audio(L/R) signals inputted to each pin of CN301?

Pin(6) : Pin(8) : Pin(2) : Pin(4) :

Are the audio(L/R) signals inputted to the Pin(1, 44) of IC801?

Are the audio(L/R) signals inputted to the Pin(3, 5) of IC871?

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?

AMP(L)-OUT AMP(R)-OUT AUDIO(L)-OUT AUDIO(R)-OUT

Ye s

CN802: SP(L) CN801: SP(R)

JK871: AUDIO(L)-OUT JK872: AUDIO(R)-OUT

No

Ye s

No

Check the line between Pin(2, 15) of IC771 and input terminal(JK753, JK754), and service it if defective.

Replace Digital Main CBA Unit.

Check the line between Pin(6, 8) of CN301 and Pin(1, 44) of IC801, and service it if defective.

Check the line between Pin(2, 4) of CN301 and Pin(3, 5) of IC871, and service it if defective.

Check IC801 and their periphery circuit, and service it if defective.

Check SP801,SP802 and their periphery circuit, and service it if defective.

Check the line between Pin(1, 7) of IC871 and audio output terminal(JK871, JK872), and service it if defective.

8-10 A91F3TR

FLOW CHART NO.2

Audio is not outputted normally.(Component Audio input)

Are the audio(L/R) signals inputted to the Pin(4, 11) of IC771?

Ye s

Are the audio(L/R) signals inputted to each pin of CN301?

Pin(6) : Pin(8) : Pin(2) : Pin(4) :

AMP(L)-OUT AMP(R)-OUT AUDIO(L)-OUT AUDIO(R)-OUT

Ye s

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

(1, 44)

of IC801? Are the audio(L/R) signals inputted to the Pin

(3, 5)

of IC871?

Ye s

Are the audio(L/R) signals outputted to the Pin(1, 2) of CN801 and CN802?

CN802: SP(L) CN801: SP(R)

Are the audio(L/R) signals outputted to the audio output terminal?

JK871: AUDIO(L)-OUT JK872: AUDIO(R)-OUT

No

Ye s

No

Check the line between Pin(4, 11) of IC771 and input terminal(JK741, JK742), and service it if defective.

Replace Digital Main CBA Unit.

Check the line between Pin(6, 8) of CN301 and Pin(1, 44) of IC801, and service it if defective.

Check the line between Pin(2, 4) of CN301 and Pin(3, 5) of IC871, and service it if def

ective.

Check IC801 and their periphery circuit, and service it if defective.

Check SP801,SP802 and their periphery circuit, and service it if defective.

Check the line between Pin(1, 7) of IC871 and audio output terminal(JK871, JK872), and service it if defective.

8-11 A91F3TR

FLOW CHART NO.3

Audio is not outputted normally.(Tuner input)

Are the DIF signals outputted to the Pin(26, 28) of CN302?

Ye s

Are the audio(L/R) signals inputted to each pin of CN301?

Pin(6) : Pin(8) : Pin(2) : Pin(4) :

AMP(L)-OUT AMP(R)-OUT AUDIO(L)-OUT AUDIO(R)-OUT

Ye s

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

(1, 44)

of IC801? Are the audio(L/R) signals inputted to the Pin

(3, 5)

of IC871?

Ye s

Are the audio(L/R) signals outputted to the Pin(1, 2) of CN801 and CN802?

CN802: SP(L) CN801: SP(R)

Are the audio(L/R) signals outputted to the audio output terminal?

JK871: AUDIO(L)-OUT JK872: AUDIO(R)-OUT

No

Ye s

No

Check TU301 and their periphery circuit, and service it if defective.

Replace Digital Main CBA Unit.

Check the line between Pin(6, 8) of CN301 and Pin(1, 44) of IC801, and service it if defective.

Check the line between Pin(2, 4) of CN301 and Pin(3, 5) of IC871, and service it if def

ective.

Check IC801 and their periphery circuit, and service it if defective.

Check SP801,SP802 and their periphery circuit, and service it if defective.

Check the line between Pin(1, 7) of IC871 and audio output terminal(JK871, JK872), and service it if defective.

8-12 A91F3TR

BLOCK DIAGRAMS

System Control Block Diagram [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

AL+3.3V

D104

D105

STANDBY

POWER

SENSOR

REMOTE

RS102

JUNCTION

CBA

CL101B

LED144

REMOTE22

P-ON-H155

KEY-IN166

CL102A

CN101

LED144

REMOTE22

P-ON-H155

KEY-IN166

CN101

Q172

Q171

CN302CN3702

IR SENSOR CBAFUNCTION CBA

CL103C

KEY-IN133

CL103B

KEY SWITCH

CN301

TO

POWER SUPPLY

P-ON-H2

P-ON-H1

CN301CN3701

BLOCK DIAGRAM

PROTECT2

PROTECT1

11

15

CN201

5

TO

INVERTER

BLOCK

DIAGRAM

(CN1001)

PROTECT35BACKLIGHT-SW4BACKLIGHT-ADJ14VCOM 6

DRIVE

IC201,Q203,

*1

29

28

26

DRIVE

Q204,Q205

*2

LC320SLX (Serial No. : DS2A**********),

LC320SLX (Serial No. : DS4A**********),

32MF339B/F7,

LC320SSX,

LC320EMX (Serial No. : DS1A**********),

LC320EMX (Serial No. : DS2A**********),

LC320EMX (Serial No. : DS4A**********),

LC320EMXF

*1 LC320SLX (Serial No. : DS1A**********),

Q205

SCL

SDA

TU301 (TUNER UNIT)

4

5

22

21

LC320EMX (Serial No. : DS3A**********),

*2 LC320SLX (Serial No. : DS3A**********),

POWER SUPPLY CBA

IC3301

(MAIN MICRO CONTROLLER)

KEY-IN129 29

AC5

KEY-IN1

P-ON-H199

REMOTE25 25

LED127 27

P-ON-H211

CN3701

F1

R22

R23

AB13

LED1

P-ON-H2

P-ON-H1

REMOTE

INPUT0

E1

INPUT0

TO AUDIO

INPUT1

E2

AUDIO-MUTE

INPUT1

BLOCK

DIAGRAM

PROTECT1 11

AD5

PROTECT1

AUDIO-MUTE

AB9

PROTECT2

PROTECT3 5

15

AE5

AD4

PROTECT3

PROTECT2

VCOM-PWM

BACKLIGHT-SW

BACKLIGHT-ADJ

29

28

26

AB16

AB23

AC14

VCOM-PWM

BACKLIGHT-SW

BACKLIGHT-ADJ

CN3702 CN302

IC3101 (MEMORY)

SCL 22

AC18

SCL

SCK

AB25

652

SCK

SDA 21

AC19

SDA

SIN

AB24

SI

SOUTCSWP

E11

AC25

AC24

1

3

CS

SO

WP

X3101

CLKOUT

CLKIN

N1

N2

25MHz

OSC

DIGITAL MAIN CBA UNIT

9-1

A91F3BLS

System Control Block Diagram [LC321SSX, 32MF369B/F7]

AL+3.3V

D104

D105

STANDBY

POWER

SENSOR

REMOTE

RS102

JUNCTION

CBA

CL101B

LED144

REMOTE22

P-ON-H155

KEY-IN166

CL102A

CN101

LED144

REMOTE22

P-ON-H155

KEY-IN166

CN101

Q172

Q171

CN302CN3702

IR SENSOR CBAFUNCTION CBA

CL103C

KEY-IN133

CL103B

KEY SWITCH

CN301

TO

P-ON-H2

P-ON-H4

CN301

POWER SUPPLY

BLOCK DIAGRAM

PROTECT2

PROTECT1

11

PROTECT3

13

TO

INVERTER

BLOCK DIAGRAM

(CN1001)

PROTECT35BACKLIGHT-SW4BACKLIGHT-ADJ

3

CN201

SCL

SDA

TU301 (TUNER UNIT)

4

SW

Q210, Q211

5

POWER SUPPLY CBA

Q212

5

24

15

1

22

21

IC3301

(MAIN MICRO CONTROLLER)

KEY-IN129 29

AC5

KEY-IN1

P-ON-H199

REMOTE25 25

LED126 26

P-ON-H211

CN3701

F1

R22

R23

AB13

LED1

P-ON-H2

P-ON-H1

REMOTE

INPUT0

E1

INPUT0

TO AUDIO

INPUT1

E2

AUDIO-MUTE

INPUT1

BLOCK

DIAGRAM

PROTECT1 11

CN3701

AD5

PROTECT1

AUDIO-MUTE

AB9

PROTECT2

PROTECT3

5

13

AE5

AD4

PROTECT3

PROTECT2

BACKLIGHT-SW 15

AB16

BACKLIGHT-SW

BACKLIGHT-ADJ 24

AB23

BACKLIGHT-ADJ

P-ON-H4 1

CN3702 CN302

D11

P-ON-H4

IC3101 (MEMORY)

SCL 22

AC18

SCL

SCK

AB25

652

SCK

SDA

21

AC19

SDA

SIN

AB24

SI

SOUTCSWP

E11

AC25

AC24

1

3

CS

SO

WP

X3101

CLKOUT

CLKIN

N1

N2

25MHz

OSC

DIGITAL MAIN CBA UNIT

9-2

A91FSBLS

Video Block Diagram

AUDIO SIGNAL

TO DIGITAL

SIGNAL PROCESS

BLOCK DIAGRAM

VIDEO SIGNAL

VIDEO-IN

S-VIDEO-SW

S-VIDEO-Y-IN

CN302 CN3702

WF1WF2

WF3

S-VIDEO-C-IN

VIDEO-IN4 4

S-VIDEO-C-IN6 6

COM-VIDEO-Pr-IN

COM-VIDEO-Y-IN

COM-VIDEO-Pb-IN

S-VIDEO-Y-IN88

COM-VIDEO-Y-IN

COM-VIDEO-Pb-IN

S-VIDEO-SW5 5

15 15

17 17

COM-VIDEO-Pr-IN 19 19

WF6

WF4 WF5

DIF-OUT1

DIF-OUT2

DIF-OUT126 26

CN302 CN3702

IF-AGC

DIGITAL MAIN CBA UNIT

IF-AGC24 24

DIF-OUT228 28

3

22

CL701A

VIDEO-IN 5

S-VIDEO-C-IN

S-VIDEO-Y-IN 1

S-VIDEO-SW-IN

531

CL701B

CY

JACK CBA

JK752

VIDEO-IN

JK751

S-VIDEO

-IN

COMPONENT

-Y-IN

JK731

JK732

POWER SUPPLY CBA

9

11

10

IF-AGC

DIF-OUT1

DIF-OUT2

TU301

COMPONENT

-Pb-IN

COMPONENT

-Pr-IN

JK733

(TUNER UNIT)

9-3 A91F3BLV

Audio Block Diagram

AUDIO SIGNAL

TO

DIGITAL

SIGNAL

AUDIO(L)

PROCESS

BLOCK

DIAGRAM

AUDIO(R)

TO

SYSTEM

INPUT1

CONTROL

BLOCK

INPUT0

AUDIO-MUTE

DIAGRAM

[ LC320SLX, LC320EMX ]

IC3802

(D/A CONVERTER)

BCLK

LRCLK

876

(L-CH)

ADATA1

D/A

(R-CH)

15

CONVERTER

14

TO

DIGITAL

SIGNAL

PROCESS

BLOCK

DIAGRAM

ACLK

ADATA0

4

3

39

DSP

(AUDIO DSP)

IC3803

5

IC3801

(D/A CONVERTER)

876

D/A

(L-CH)

15

333437

CONVERTER

(R-CH)

14

40

36

5

2

35

SPDIF

[ 32MF339B/F7, LC320SSX, LC320EMXF,

LC321SSX, 32MF369B/F7 ]

CL701A

AUDIO(L)-IN 77

CL701B

IC771

9

AUDIO(R)-IN 9

(AUDIO SELECTOR)

241

DRIVE

Q873,Q874

MUTE

Q872

MUTE

22

CN3702

SPDIF

CN302

BUFFER

2020

AUDIO-MUTE

IC801 (AUDIO AMP)

Q841

1

PWM1

DRIVE1

9,10

13,14

44

PWM2

DRIVE2

35,36

31,32

CN801CL801

20

MUTE CONTROL

1

2

SP(L)-

SP(L)+

Q801

2

CN802

SP(R)+

POWER SUPPLY CBA DIGITAL MAIN CBA UNIT

1

SP(R)-

CN3702CN302

WF7

3

13

5

151112

14

CN3702CN302

AUDIO(L)13 13

AUDIO(R)11 11

INPUT110 10

INPUT012 12

Q772

Q771

109

CONTROL

LOGIC

CN3701CN301

AUDIO(R)-OUT44

AMP(R)-OUT88

AUDIO(L)-OUT22

AMP(L)-OUT66

5

IC871

(OP AMP)

7

1 3

Q871

JACK CBA

COMPONENT-

AUDIO(L)-IN

AUDIO(L)

JK753

-IN

AUDIO(R)

-IN

JK754

JK741

COMPONENT-

JK742

AUDIO(R)-IN

HDMI-

JK721

AUDIO(L)-IN

HDMI-

JK722

AUDIO(R)-IN

9-4

AUDIO(L)-OUT

JK871

AUDIO(R)-OUT

JK872

DIGITAL

JK841

AUDIO-OUT

(COAXIAL)

SP801

SPEAKER

L-CH

CL802

SP802

SPEAKER

R-CH

A91F3BLA

Digital Signal Process Block Diagram

[LC320SLX(Serial No.:DS1A**********, DS2A**********, DS3A**********), 32MF339B/F7, LC320SSX, LC320EMX(Serial No.:DS1A**********, DS2A**********, DS3A**********), LC320EMXF]

LCD MODULE

ASSEMBLY

LLV1P21

LLV1N20

LLV0P23

LLV0N22

LLV2P19

LLV2N18

LLV3P13

LLV3N12

LLV4P11

LLV4N10

LLV5P9

LLV5N8

LLVCLKP16

LLVCLKN15

TP6

POL5

CPV4

OE3

STV1

CN3902

AUDIO SIGNAL

48474645444338373635343342416364303132

VIDEO SIGNAL

IC3901 (TINING CONTROLLER)

IC3301 (DIGITAL SIGNAL PROCESS)

AA3

LVD S

OUTPUT

DAT A

INPUT

LATCH

FRC

LINE BUFFER

GAMMA

CORRECTOR

DAT A

PROCESSING

IC3201

DATA(0-15)

H1,H3,H7,H9

B1,B9,C2,C8,

F1,F9,G2,G8,

M2,M3,M7,M8,

D1,D3,D7,D9,

A13-15,A18,

A21-23,B13-15,

B17,B19-23

C15,C17-19,

VIDEO

DECODER

B1

ADDESS(0-12)

N2,N3,N7,N8,

P2,P3,P7,P8,R2

C23,C24,D14,

D15,D17-19,

D22,D23

B2

C1C2D1

D2

A1A2A3

B3

B4A4B6A6A7

(DDR2 SDRAM)

B7

LVD S

RX

8

7109

1211161514

AF23

AF22

AE23

AD23

AD24

LVD S

TX

AUDIO I/F

A/D

CONVERTER

DEMODULATOR

SW

V1

V3

U2

U1

U3

/MPEG DECODER

S-VIDEO-SW

IF-AGC

C6

AF7

AF2

AE2

M1

AD9

AD12

AD10

AD11

A9

AC10

AD14

B9

AE22

C8

AD21

AUDIO

C9

13

AF24

AE24

AD22

DIGITAL

SIGNAL

PROCESS

DECODER

B8

A8

B10

A10

A11

B11

HDMI

I/F

A5

B5

C4

C5

S-VIDEO-SWM2AUDIO(R)

DIF-OUT1

DIF-OUT2

VIDEO-IN

S-VIDEO-Y-IN

S-VIDEO-C-IN

COM-VIDEO-Y-IN

COM-VIDEO-Pr-IN

COM-VIDEO-Pb-IN

IF-AGC

DIGITAL MAIN CBA UNIT

TO VIDEO

BLOCK DIAGRAM

TO VIDEO

BLOCK DIAGRAM

AUDIO(L)

BCLK

LRCLK

TO AUDIO

BLOCK DIAGRAM

ACLK

ADATA1

ADATA0

SPDIF

TMDS-D0(+)

TMDS-D0(-)

TMDS-D1(+)

TMDS-D1(-)

TMDS-D2(+)

TMDS-D2(-)

TMDS-CLOCK(+)

TMDS-CLOCK(-)

SDA

SCL

TMDS-D0(+)

TMDS-D0(-)

TMDS-D1(+)

TMDS-D1(-)

TMDS-D2(+)

TMDS-D2(-)

TMDS-CLOCK(+)

TMDS-CLOCK(-)

SDA

TMDS-D0(+)

JK3701

TMDS-D0(-)

TMDS-D1(+)

TMDS-D1(-)

79461

9-5

TMDS-CLOCK(+)

TMDS-D2(+)

TMDS-D2(-)

3

101216

HDMI-IN1

TMDS-CLOCK(-)

SDA

SCL

15

JK3702

79461

3

101216

HDMI-IN2

JK3703

79461

15

3

101216

HDMI-IN3

A91F3BLD

SCL

15

Digital Signal Process Block Diagram [LC320SLX(Serial No.:DS4A**********), LC320EMX(Serial No.:DS4A*********)]

LCD MODULE

ASSEMBLY

LLV1P21

LLV1N20

LLV0P23

LLV0N22

LLV2P19

LLV2N18

LLV3P13

LLV3N12

LLV4P11

LLV4N10

LLV5P9

LLV5N8

LLVCLKP16

LLVCLKN15

TP6

POL5

CPV4

OE3

STV1

CN3902

AUDIO SIGNAL

VIDEO SIGNAL

IC3201

DATA(0-15)

H1,H3,H7,H9

B1,B9,C2,C8,

F1,F9,G2,G8,

M2,M3,M7,M8,

D1,D3,D7,D9,

ADDESS(0-12)

N2,N3,N7,N8,

P2,P3,P7,P8,R2

AD23

AD24

AE23

AF23

AF22

AE22

AD21

AD22

AE21

AF21

AF20

AE20

AF24

AE24

W25

TP

W23

POL

Y24

CPV

Y23

OE

(DDR2 SDRAM)

Y22

STV

IC3301 (DIGITAL SIGNAL PROCESS)

V3

U3

AA3

VIDEO-IN

S-VIDEO-Y-IN

S-VIDEO-C-IN

LVD S TX

A/D

CONVERTER

SW

V1

U2

U1

COM-VIDEO-Y-IN

COM-VIDEO-Pr-IN

COM-VIDEO-Pb-IN

DEMODULATOR

/MPEG DECODER

IF-AGC

AF7

AF2

AE2

S-VIDEO-SWM2AUDIO(R)

DIF-OUT1

DIF-OUT2

IF-AGC

S-VIDEO-SW

C6

AUDIO(L)

A13-15,A18,

A21-23,B13-15,

B17,B19-23

C15,C17-19,

C23,C24,D14,

D15,D17-19,

D22,D23

DIGITAL

SIGNAL

PROCESS

AUDIO I/F

M1

AD9

AC10

AD14

AD12

AD10

AD11

ACLK

LRCLK

ADATA0

SPDIF

ADATA1

BCLK

AUDIO

DECODER

VIDEO

DECODER

HDMI

I/F

A9

B9

B8

A8

C8

C9

B10

A10

A11

B11

A5

B5

C4

C5

B4A4B6A6A7

B7

B1

B2

C1C2D1

D2

A1A2A3

B3

DIGITAL MAIN CBA UNIT

TO VIDEO

BLOCK DIAGRAM

TO VIDEO

BLOCK DIAGRAM

TO AUDIO

BLOCK DIAGRAM

TMDS-D0(+)

JK3701

TMDS-D0(-)

TMDS-D1(+)

TMDS-D1(-)

79461

9-6

TMDS-D2(+)

TMDS-D2(-)

TMDS-CLOCK(+)

3

101216

HDMI-IN1

SDA

SCL

TMDS-CLOCK(-)

15

TMDS-D0(+)

JK3702

TMDS-D0(-)

TMDS-D1(+)

TMDS-D1(-)

79461

TMDS-D2(+)

TMDS-D2(-)

TMDS-CLOCK(+)

3

101216

HDMI-IN2

TMDS-CLOCK(-)

SDA

SCL

15

TMDS-D0(+)

JK3703

TMDS-D0(-)

TMDS-D1(+)

TMDS-D1(-)

79461

TMDS-D2(+)

TMDS-D2(-)

TMDS-CLOCK(+)

TMDS-CLOCK(-)

3

101216

HDMI-IN3

SDA

SCL

15

A91FGBLD

Digital Signal Process Block Diagram

LCD MODULE

ASSEMBLY

LVDS-D1E(+)11

LVDS-D1E(-)12

LVDS-D0E(+)14

LVDS-D0E(-)15

LVDS-D2E(+)8

LVDS-D2E(-)9

LVDS-D3E(+)2

LVDS-D3E(-)3

LVDS-CE(+)5

LVDS-CE(-)6

CN3902

AUDIO SIGNAL

VIDEO SIGNAL

AD23

AD24

AE23

AF23

AF22

AE22

AD21

AD22

AF24

AE24

[LC321SSX

, 32MF369B/F7

IC3201

DATA(0-15)

H1,H3,H7,H9

B1,B9,C2,C8,

F1,F9,G2,G8,

M2,M3,M7,M8,

D1,D3,D7,D9,

ADDESS(0-12)

N2,N3,N7,N8,

P2,P3,P7,P8,R2

(DDR2 SDRAM)

]

IC3301 (DIGITAL SIGNAL PROCESS)

AA3

LVDS TX

DIGITAL

SIGNAL

PROCESS

AUDIO I/F

A/D

CONVERTER

DEMODULATOR

V1

U2

/MPEG DECODER

S-VIDEO-SW

IF-AGC

C6

AF7

AF2

AE2

M1

AD9

AD12

AD10

AD11

AC10

AD14

SW

V3

U1

U3

AUDIO

DECODER

HDMI

I/F

A9

B9

B8

A8

C8

C9

B10

A10

A11

B11

A5

B5

B4A4B6A6A7

C4

C5

A13-15,A18,

VIDEO

B7

A21-23,B13-15,

B17,B19-23

C15,C17-19,

C23,C24,D14,

D15,D17-19,

DECODER

B1

B2

C1C2D1

D22,D23

D2

A1A2A3

B3

S-VIDEO-SWM2AUDIO(R)

VIDEO-IN

S-VIDEO-Y-IN

S-VIDEO-C-IN

COM-VIDEO-Y-IN

COM-VIDEO-Pr-IN

COM-VIDEO-Pb-IN

DIF-OUT1

DIF-OUT2

AUDIO(L)

IF-AGC

DIGITAL MAIN CBA UNIT

TO VIDEO

BLOCK DIAGRAM

TO VIDEO

BLOCK DIAGRAM

BCLK

ACLK

LRCLK

TO AUDIO

BLOCK DIAGRAM

ADATA0

SPDIF

ADATA1

JK3701

TMDS-D0(+)

TMDS-D0(-)

TMDS-D1(+)

79461

TMDS-D1(-)

TMDS-D2(+)

TMDS-D2(-)

3

HDMI-IN1

9-7

TMDS-CLOCK(+)

TMDS-CLOCK(-)

SDA

SCL

101216

15

TMDS-D0(+)

JK3702

TMDS-D0(-)

TMDS-D1(+)

TMDS-D1(-)

79461

TMDS-D2(+)

TMDS-D2(-)

TMDS-CLOCK(+)

3

101216

HDMI-IN2

TMDS-CLOCK(-)

SDA

SCL

15

TMDS-D0(+)

JK3703

TMDS-D0(-)

TMDS-D1(+)

TMDS-D1(-)

79461

TMDS-D2(+)

TMDS-D2(-)

TMDS-CLOCK(+)

3

101216

HDMI-IN3

TMDS-CLOCK(-)

SDA

SCL

15

A91FSBLD

Inverter Block Diagram [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

BACK

1

CN1050

LIGHT

2

786

LIGHT

1

2

CN1100

786

5

BACK

1

CN1150

LIGHT

2

786

BACK

LIGHT

VCOM

1

2

CN1200

OVER VOLTAGE

PROTECTOR

Q1161

Q1211

5

786

5

*1

CN1003

OVER VOLTAGE

PROTECTOR

*2

10

CN1005

Q1111

OVER VOLTAGE

PROTECTOR

LCD MODULE

OVER VOLTAGE

PROTECTOR

Q1061

ASSEMBLY

T1050

INVERTER CBA

INV+16V

4

2

Q1801,Q1802,

3

1

SW+16V

Q1803,Q1804

SW+16V

Q1800,Q1815

T1100

VCC

IC1000

(PWM CONTROL)

12

2

DCT

4

Q1004,

4

Q1005

3

SW

1

Q1500

Q1501,

Q1502,

3

CURRENT

CONTROL

SWITCH

DRIVE

Q1503

11

15

16

Q1550

Q1551,

Q1552,

PWM

CONTROL

T1150

CURRENT

Q1553

LOGIC

2

CONTROL

SWITCH

DRIVE

8

1

4

1

OSC

T1200

3

4

3

1

2

Q1003

Q1001

5 6

Q1972

Q1210

OVER VOLTAGE

PROTECTOR

IC1700

(COMPARATOR)

Q1600

Q1160

13

OVER VOLTAGE

PROTECTOR

12

14

Q1621

Q1110

9

8

OVER VOLTAGE

10

PROTECTOR

Q1060

67523

OVER VOLTAGE

PROTECTOR

1

10

11

14

15

23457

T1950

NOTE:

The voltage for parts in hot circuit is measured using

hot GND as a common terminal.

CN1900

ACL2

HOT CIRCUIT. BE CAREFUL.

HOT-GND1

TO POWER

SUPPLY

BLOCK

DIAGRAM

(CN602)

8

Q1930

SWITCHING

IC1930

Q1970

14

3 2

Q1932

IC1931

14

Q1931

LC320SLX (Serial No. : DS2A**********),

LC320SLX (Serial No. : DS4A**********),

32MF339B/F7,

LC320SSX,

LC320EMX (Serial No. : DS1A**********),

LC320EMX (Serial No. : DS2A**********),

LC320EMX (Serial No. : DS4A**********),

LC320EMXF

LC320EMX (Serial No. : DS3A**********),

*1 LC320SLX (Serial No. : DS1A**********),

3 2

COLD

HOT

Q1971

CN1001

PROTECT3 10

TO SYSTEM

BACKLIGHT-ADJ

VCOM

BACKLIGHT-SW

2

12

11

CONTROL

BLOCK

DIAGRAM

(CN201)

9-8

*2 LC320SLX (Serial No. : DS3A**********),

A91F3BLINV

Inverter Block Diagram [LC321SSX, 32MF369B/F7]

LCD MODULE

ASSEMBLY

INV+24V9-13

PROTECT33

BACKLIGHT-SW2

BACKLIGHT-ADJ1

Q1650

Q1972

INVERTER POWER CBA

SW

Q1652,

Q1800

Q1650

10

11

23457

T1950

CN1900

ACL2

HOT CIRCUIT. BE CAREFUL.

HOT-GND1

Q1971

Q1970

IC1930

14

3 2

Q1932

14

15

8

Q1930

SWITCHING

IC1931

14

Q1931

3 2

HOT

COLD

CN1001

PROTECT33

BACKLIGHT-SW 1

BACKLIGHT-ADJ 2

TO POWER

SUPPLY

BLOCK

DIAGRAM

(CN602)

9-9

TO SYSTEM

CONTROL

BLOCK

DIAGRAM

(CN201)

A91FSBLINV

Power Supply Block Diagram

For continued protection against risk of fire,

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

CAUTION ! :

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

4A/125V

NOTE:

The voltage for parts in hot circuit is measured using

hot GND as a common terminal.

[LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

AL+33V

P-ON+5V

AL+3.3V

AL+13V

TUNER+5V

LCD+16V

LCD+6.8V

INV+16V

VGH

P-ON+3.3V

P-ON+3V

P-ON+7V

AL+3.3V

P-ON+3.3V

P-ON+5V

P-ON+9V

TO SYSTEM

CONTROL

P-ON-H1

P-ON-H2

BLOCK

DIAGRAM

PROTECT2

PROTECT1

INVERTER CBA

13

LCD-6.8V13

CN201 CN1001

SW-6.8V

Q211

2

10

8,9

INV+16V2

VGH10

LCD+16V8,9

*1

SW

Q201, Q202,

Q212

SW+24.5V

Q210

DIGITAL MAIN CBA UNIT

16

10

12

P-ON+3.3V12

P-ON+3V10

CN301 CN3701

19,20

21,22

P-ON+7V16

P-ON+3.3V19,20

AL+3.3V21,22

SWITCHING

Q207,Q208

13,14

P-ON+5V13,14

LC320SLX (Serial No. : DS2A**********),

LC320SLX (Serial No. : DS4A**********),

32MF339B/F7,

LC320SSX,

LC320EMX (Serial No. : DS1A**********),

LC320EMX (Serial No. : DS2A**********),

LC320EMX (Serial No. : DS4A**********),

*1 LC320SLX (Serial No. : DS1A**********),

Q401

SW+16V

Q209,D204

SW+16V

Q501

LC320EMXF

Q642

SW+9V

SW+3.3V

Q637,D666

SWITCHING

Q638,Q639

Q640

SW+5V

Q634

SW+5V

Q641,643

IC631

Q635

23

REG.

+3.3V

+5V REG.

11

3

T601

BRIDGE

RECTIFIER

D601- D604

LINE

FILTER

L602

LINE

FILTER

L601

F601

AC601

4A/125V

AC CORD

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.

HOT CIRCUIT. BE CAREFUL.

14

4A/125V

12

4

CN602

TO

INVERTER

ACL2

HOT-GND1

BLOCK

DIAGRAM

(CN1900)

FEED

17

18

13

16

15

19

14

5

7

9

8

IC601

BACK

Q631

3 2

HOT COLD

CONTROL

Q602

SWITCHING

POWER SUPPLY CBA

SWITCHING

Q601

9-10

A91F3BLP

Power Supply Block Diagram [LC321SSX, 32MF369B/F7]

For continued protection against risk of fire,

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

CAUTION ! :

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

4A/125V

NOTE:

The voltage for parts in hot circuit is measured using

hot GND as a common terminal.

AL+33V

P-ON+5V

AL+3.3V

AL+13V

TUNER+5V

P-ON+3V

DIGITAL MAIN CBA UNIT

10

P-ON+3V10

CN301 CN3701

P-ON+7V

AL+3.3V

16

21,22

P-ON+6.7V16

AL+3.3V21,22

P-ON+3.3V

P-ON+5V

14

19,20

27-29

P-ON+3.3V19,20

P-ON+5V14

LCD+12V27-29

P-ON+9V

TO SYSTEM

P-ON-H4

P-ON-H2

CONTROL

BLOCK

DIAGRAM

PROTECT2

PROTECT3

PROTECT1

11

3

T601

BRIDGE

RECTIFIER

D601- D604

SW+9V

Q642

SW+16V

Q209,D204

SWITCHING

Q207,Q208

14

12

17

18

13

16

15

19

4

5

7

9

8

SW+3.3V

Q637,D666

14

IC601

SWITCHING

Q638,Q639

3 2

Q631

FEED

SW+5V

Q641,643

IC631

Q635

23

REG.

+3.3V

+5V REG.

SW+5V

Q640

Q634

BACK

HOT COLD

LINE

FILTER

L602

LINE

FILTER

L601

F601

AC601

4A/125V

AC CORD

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.

HOT CIRCUIT. BE CAREFUL.

4A/125V

CN602

TO

INVERTER

ACL2

HOT-GND1

BLOCK

DIAGRAM

(CN1900)

9-11

SWITCHING

Q601

Q602

SWITCHING

CONTROL

POWER SUPPLY CBA

A91FSBLP

SCHEMATIC DIAGRAMS / CBA AND TEST POINTS

Standard Notes

WARNING

Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by the mark “#” in the schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire, or other hazards.

Notes:

1. Do not use the part number shown on these

drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since these drawings were prepared.

2. All resistance values are indicated in ohms

(K = 10

3. Resistor wattages are 1/4W or 1/6W unless

otherwise specified.

4. All capacitance values are indicated in µF

(P = 10

5. All voltages are DC voltages unless otherwise

specified.

6. This schematic diagrams are masterized version

that should cover the entire FL9.1 chassis models. Thus some parts in detail illustrated on this schematic diagrams may vary depend on the model within the FL9.1 chassis. Please refer to the parts lists for each models.

7. The Circuit Board layout illustrated on this service

manual is the latest version for this chassis at the moment of making this service manual. Depend on the mass production date of each model, the actual layout of each Board may differ slightly from this version.

3

, M = 106).

-6

µF).

10-1 FL9_1_SC

LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON

r

THE FOLLOWING PAGES:

1. CAUTION:

CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME

TYPE_A,_V FUSE.

ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME 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 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.

3. Note:

1. Do not use the part number shown on the drawings for ordering. The correct part number is shown in the

parts 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 are

listed 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.:

2

(Unit: Volt)

1

5.0 5.0

3

Power on mode

5. How to read converged lines

1-D3

Distinction Area

Line Number (1 to 3 digits)

Examples:

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

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

6. Test Point Information

: 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.

Voltage

Indicates that the voltage is not consistent here.

3

2

1

AREA D3

1-B1

AREA B1

1-D3

ABCD

10-2 FL9_1_SC

10-3

A91F3SCM1

Power Supply 1/4 Schematic Diagram [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

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 même type de 4A, 125V.

4A/125V

10-4

A91F3SCM2

Power Supply 2/4 Schematic Diagram [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

10-5

A91F3SCM3

Power Supply 3/4 & Jack Schematic Diagram [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

10-6

A91F3SCM4

Power Supply 4/4 Schematic Diagram [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

10-7

A91FSSCM1

Power Supply 1/4 Schematic Diagram [LC321SSX, 32MF369B/F7]

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 même type de 4A, 125V.

4A/125V

10-8

A91FSSCM2

Power Supply 2/4 Schematic Diagram [LC321SSX, 32MF369B/F7]

10-9

A91FSSCM3

Power Supply 3/4 & Jack Schematic Diagram [LC321SSX, 32MF369B/F7]

10-10

A91FSSCM4

Power Supply 4/4 Schematic Diagram [LC321SSX, 32MF369B/F7]

10-11

A91F3SCINV

Inverter Schematic Diagram [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

NOTE:

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

10-12

A91FSSCINV

Inverter Power Schematic Diagram [LC321SSX, 32MF369B/F7]

NOTE:

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

10-13

A91F3SCF

Function Schematic Diagram [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

10-14

A91FSSCF

Function Schematic Diagram [LC321SSX, 32MF369B/F7]

10-15

A91F3SCIR

IR Sensor & Junction Schematic Diagram [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

10-16

A91FSSCIR

IR Sensor & Junction Schematic Diagram [LC321SSX, 32MF369B/F7]

10-17

A91F3SCD1

Digital Main 1/5 Schematic Diagram [LC320SLX(Serial No.:DS1A**********, DS2A**********, DS3A**********), 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

10-18

A91F3SCD2

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

Digital Main 2/5 Schematic Diagram [LC320SLX(Serial No.:DS1A**********, DS2A**********, DS3A**********), 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

10-19

A91F3SCD3

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

Digital Main 3/5 Schematic Diagram [LC320SLX(Serial No.:DS1A**********, DS2A**********, DS3A**********), 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

10-20

A91F3SCD4

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

Digital Main 4/5 Schematic Diagram [LC320SLX(Serial No.:DS1A**********, DS2A**********, DS3A**********), 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

10-21

A91F3SCD5

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

Digital Main 5/5 Schematic Diagram [LC320SLX(Serial No.:DS1A**********, DS2A**********, DS3A**********), 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

10-22

A91FGSCD1

Digital Main 1/5 Schematic Diagram [LC320SLX(Serial No.:DS4A**********), LC320EMX(Serial No.:DS4A**********)]

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

10-23

A91FGSCD2

Digital Main 2/5 Schematic Diagram [LC320SLX(Serial No.:DS4A**********), LC320EMX(Serial No.:DS4A**********)]

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

10-24

Digital Main 3/5 Schematic Diagram [LC320SLX(Serial No.:DS4A**********), LC320EMX(Serial No.:DS4A**********)]

A91FGSCD3

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

10-25

Digital Main 4/5 Schematic Diagram [LC320SLX(Serial No.:DS4A**********), LC320EMX(Serial No.:DS4A**********)]

A91FGSCD4

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

10-26

Digital Main 5/5 Schematic Diagram [LC320SLX(Serial No.:DS4A**********), LC320EMX(Serial No.:DS4A**********)]

A91FGSCD5

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

10-27

Digital Main 1/5 Schematic Diagram [LC321SSX, 32MF369B/F7]

A91FSSCD1

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

10-28

Digital Main 2/5 Schematic Diagram [LC321SSX, 32MF369B/F7]

A91FSSCD2

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

10-29

Digital Main 3/5 Schematic Diagram [LC321SSX, 32MF369B/F7]

A91FSSCD3

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

10-30

Digital Main 4/5 Schematic Diagram [LC321SSX, 32MF369B/F7]

A91FSSCD4

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

10-31

Digital Main 5/5 Schematic Diagram [LC321SSX, 32MF369B/F7]

A91FSSCD5

The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

10-32

BA94F0F01024-A

Power Supply CBA Top View [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

NOTE:

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

Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used. Also, in order to have the ability to increase the input slowly,when troubleshooting this type 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.

For continued protection against risk of fire,

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

CAUTION ! :

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

4A/125V

10-33

PIN 19 OF CN302

WF6

PIN 8 OF CN302

WF2

PIN 15 OF CN302

WF4

PIN 17 OF CN302

WF5

PIN 6 OF CN302

WF3

PIN 13 OF CN302

WF7

PIN 4 OF CN302

WF1

Power Supply CBA Bottom View [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

BA94F0F01024-A

NOTE:

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

Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used. Also, in order to have the ability to increase the input slowly,when troubleshooting this type power supply circuit, a variable isolation transformer is required.

For continued protection against risk of fire, replace only with same type 4 A, 125V fuse.

CAUTION ! :

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

4A/125V

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.

10-34

BA91FSF01022-A

Power Supply CBA Top View [LC321SSX, 32MF369B/F7]

NOTE:

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

Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used. Also, in order to have the ability to increase the input slowly,when troubleshooting this type 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.

For continued protection against risk of fire,

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

CAUTION ! :

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

4A/125V

10-35

PIN 19 OF CN302

WF6

PIN 8 OF CN302

WF2

PIN 15 OF CN302

WF4

PIN 17 OF CN302

WF5

PIN 6 OF CN302

WF3

PIN 13 OF CN302

WF7

PIN 4 OF CN302

WF1

Power Supply CBA Bottom View [LC321SSX, 32MF369B/F7]

NOTE:

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

Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used. Also, in order to have the ability to increase the input slowly,when troubleshooting this type 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.

For continued protection against risk of fire,

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

CAUTION ! :

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

4A/125V

BA91FSF01022-A

10-36

BA94F0F01034-A

Inverter CBA Top View [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

NOTE:

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

Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used. Also, in order to have the ability to increase the input slowly,when troubleshooting this type power supply circuit, a variable isolation transformer is required.

10-37

BA94F0F01034-A

Inverter CBA Bottom View [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

NOTE:

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

Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used. Also, in order to have the ability to increase the input slowly,when troubleshooting this type power supply circuit, a variable isolation transformer is required.

10-38

BA91FSF01031-A

Inverter Power CBA Top View [LC321SSX, 32MF369B/F7]

NOTE:

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

Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used. Also, in order to have the ability to increase the input slowly,when troubleshooting this type power supply circuit, a variable isolation transformer is required.

10-39

BA91FSF01031-A

NOTE:

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

Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used. Also, in order to have the ability to increase the input slowly,when troubleshooting this type power supply circuit, a variable isolation transformer is required.

Inverter Power CBA Bottom View [LC321SSX, 32MF369B/F7]

10-40

BA94F0F01034-B

BA94F0F01034

Function CBA Top View [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

Function CBA Bottom View [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

Junction CBA Top & Bottom View [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

10-41

BA91FSF01031-B

Function CBA Top View [LC321SSX, 32MF369B/F7]

Function CBA Bottom View [LC321SSX, 32MF369B/F7]

Junction CBA Top & Bottom View [LC321SSX, 32MF369B/F7]

BA91FSF01031

10-42

BA94F0F01024-B

Jack CBA Top View [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

Jack CBA Bottom View [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

BA94F0F01034-C

IR Sensor CBA Bottom View [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

IR Sensor CBA Top View [LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

10-43

BA91FSF01022-B

Jack CBA Top View [LC321SSX, 32MF369B/F7]

Jack CBA Bottom View [LC321SSX, 32MF369B/F7]

BA91FSF01031-C

IR Sensor CBA Bottom View [LC321SSX, 32MF369B/F7]

IR Sensor CBA Top View [LC321SSX, 32MF369B/F7]

WAVEFORMS

WF1 ~ WF7 = Waveforms to be observed at

Waveform check points. (Shown in Schematic Diagram.)

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

WF1

WF2

Pin 4 of CN302

CVBS 0.2V 20µs

Pin 8 of CN302

S-VIDEO-Y 0.2V

20µs

WF5

WF6

Pin 17 of CN302

VIDEO-Pb 0.2V 20µs

Pin 19 of CN302

VIDEO-Pr 0.2V 20µs

WF3

WF4

Pin 6 of CN302

S-VIDEO-C 0.2V

Pin 15 of CN302

VIDEO-Y 0.2V 20µs

20µs

Pin 13 of CN302

WF7

AUDIO 0.1V 0.5ms

LC7NWF11-1

WIRING DIAGRAM

[LC320SLX, 32MF339B/F7, LC320SSX, LC320EMX, LC320EMXF]

HDMI-

CN3902

CL3902

BACK

1

CN1050

2

1

STV

XAO

LIGHT

2

CN1900

22

3

OE1

4

POL

CPV

BACK

1

CN1100

CN1001

151

CONNECTOR-1

6TP5

LIGHT

2

142

7

GND

133

8

LLV5(-)

124

9

10

LLV4(-)

LLV5(+)

BACK

1

CN1150

115

106

HDMI-

CONNECTOR-2

13

12

11

LLV3(-)

LLV3(+)

LLV4(+)

LIGHT

2

15

14

GND

LLVCLK(-)

BACK

1

CN1200

610

511

HDMI-

CONNECTOR-3

18

17

16

GND

LLV2(-)

LLVCLK(+)

LIGHT

2

CN1003

*1

412

313

214

20

19

LLV1(-)

LLN2(+)

CL1003

GND

1

CN1005

*2

115

22

21

LLV0(-)

LLV1(+)

LCD+16V

2

23

LLV0(+)

24

GND

P-ON+3.3V

GND4VGH3LCD+16V

6

5

GND8LCD-6.8V

P-ON+3.3V

9

7

LC320SLX (Serial No. : DS2A**********),

LC320SLX (Serial No. : DS4A**********),

32MF339B/F7,

LC320SSX,

LC320EMX (Serial No. : DS1A**********),

LC320EMX (Serial No. : DS2A**********),

*1 LC320SLX (Serial No. : DS1A**********),

LCD MODULE

ASSEMBLY

VIDEO-IN

CL701B

1

2

AUDIO(L)

3

GND10VCOM

11

INVERTER CBA

LC320EMX (Serial No. : DS4A**********),

LC320EMXF

LC320EMX (Serial No. : DS3A**********),

*2 LC320SLX (Serial No. : DS3A**********),

CL101B

1

2

-IN

AUDIO(R)

-IN

S-VIDEO

-IN

GND

1

CL102A

REMOTE

2

JACK CBA

4

5

6

8

CN101 CL101

9

1

2

CL103BCL103C

CL103

3

4

AL+3.3V

LED1

3

4

3

4

2

1

GND

AL+3.3V

2

1

5

6

P-ON-H1

KEY-IN1

5

6

5

6

3

KEY-IN1

3

7

NU

7

4

NU

4

8

NU

8

JUNCTION CBA IR SENSOR CBA FUNCTION CBA

8

DIGITAL MAIN CBA UNIT

CN3701CN301

CL602

CL201

HOT-GND11ACL

GND

INV+16V

GND

BACKLIGHT-ADJ

BACKLIGHT-SW

PROTECT397GND88LCD+16V79LCD+16V

VGH

GND

P-ON+3.3V

LCD-6.8V

VCOM

GND

CN602

CN201

POWER SUPPLY CBA

TU301 TUNER UNIT

2

6

8

9

7

513

4

CN303CN4001

GND

KEY-IN2

DVD-LED

P-ON-H3(NU)

DVD-MAIN-PWR

DVD-P-ON

DVD-REMOTE

DVD-SDATA

DVD-DISC-IN

1

5

3

2

4

2

6

8

9

7

513

4

15

172220

18

16

141012

13

11

GND

9

7

6

8

10

231921

24

25

11

DVD-CS

GND

12

11

26

27

141012

13

DVD-SCLK

GND

13

14

28

29

15

172220

18

16

DVD-DISC-OUT

LED-CONT

GND

DVD-Pr

15

18

16

17

2

CN3702CN302

GND

DVD-Pb

192321

20

513

4

GND

6

DVD-Y

22

7

231921

GND

24

DVD-AUDIO(L)

24

8

25

26

DVD-AUDIO-MUTE

DVD-AUDIO(R)

25

26

9

11

S-VIDEO-Y-IN

1

CL701A CL701

27

GND

27

S-VIDEO-C-IN

S-VIDEO-SW

3

2

28

29

DVD-SPDIF

GND

28

29

15

141012

13

GND

VIDEO-IN77AUDIO(L)-IN

GND

4

5

6

172220

18

16

GND

AUDIO(R)-IN

8

9

GND

AL+3.3V

REMOTE

LED1

P-ON-H1

KEY-IN1

NU

1

3

2

CN101

SP801

SPEAKER

L-CH

CL801

1

2

SP(L)-

CN801

SP(L)+

231921

24

25

26

27

28

NU

4

5

6

7

8

SP802

SPEAKER

R-CH

CL802

1

2

SP(R)-

CN802

SP(R)+

29

CL3701

P-ON-H2

AUDIO(L)-OUT

GND

AUDIO(R)-OUT

PROTECT3

AMP(L)-OUT

GND

AMP(R)-OUT

P-ON-H1

P-ON+3V

PROTECT1

GND

P-ON+5V

PROTECT2

1

2

6

5

3

4

COMPONENT

-Y-IN

COMPONENT

7

-Pb-IN

9

8

10

11

COMPONENT

-Pr-IN

COMPONENT-

12

13

14

AUDIO(L)-IN

COMPONENT-

P-ON+7V

15

16

AUDIO(R)-IN

GND

18

17

HDMI-

AUDIO(L)-IN

P-ON+3.3V

AL+3.3V

192321

20

HDMI-

AUDIO(R)-IN

AL+3.3V

GND

22

DIGITAL

OE2

REMOTE

BACKLIGHT-SW

24

25

26

AUDIO(L)

AUDIO-OUT

(COAXIAL)

LED1

27

-OUT

BACKLIGHT-ADJ

VCOM-PWM

28

29

AUDIO(R)

CL3702

GND

1

-OUT

SPDIF

2

GND

3

VIDEO-IN

S-VIDEO-SW

S-VIDEO-C-IN

6

5

4

GND

7

S-VIDEO-Y-IN

GND

INPUT1

AUDIO(R)

INPUT0

AUDIO(L)

GND

COM-VIDEO-Y-IN

GND

COM-VIDEO-Pb-IN

GND

COM-VIDEO-Pr-IN

AUDIO-MUTE

SDA

SCL

RESET

IF-AGC

GND

DIF-OUT1

GND

DIF-OUT2

9

8

12

13

15

192321

10

14

AC601

AC CORD

16

17

11

22

18

20

24

KEY-IN1

25

26

27

28

29

A91F3WI12-1

Funai FL-9.1 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual