Sharp LC-32XL8E/S/RU, LC-37XL8E/S/RU Schematic

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

SERVICE MANUAL

No. S58K5LC32XL8E

LCD COLOUR TELEVISION

LC-32XL8E/S/RU

MODELS

In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.

LC-37XL8E/S/RU

CONTENTS

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRE-

CAUTION ............................................................i

Precautions for using lead-free solder ...............ii

CHAPTER 1. OPERATION MANUAL

[1] SPECIFICATIONS ......................................... 1-1

[2] OPERATION MANUAL .................................. 1-2

[3] DIMENSIONS ................................................ 1-7

CHAPTER 2. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS (LC-

32X8E/S/RU).................................................. 2-1

[2] REMOVING OF MAJOR PARTS (LC-

37XL8E/S/RU).............................................. 2-11

CHAPTER 3. ADJUSTMENT PROCEDURE

[1] ADJUSTMENT PROCEDURE ....................... 3-1

[4] POWER BLOCK DIAGRAM ..........................6-4

[5] WIRING DIAGRAM (LC-32XL8E/S/RU) ........6-5

[6] WIRING DIAGRAM (LC-37XL8E/S/RU) ........6-6

CHAPTER 7. PRINTED WIRING BOARD

[1] MAIN UNIT PRINTED WIRING BOARD........7-1

[2] TERMINAL UNIT PRINTED WIRING

BOARD.......................................................... 7-5

[3] R/C, LED UNIT PRINTED WIRING

BOARD.......................................................... 7-8

[4] KEY UNIT PRINTED WIRING BOARD .........7-8

[5] MINI AV UNIT PRINTED WIRING BOARD........7-9

[6] POWER UNIT PRINTED WIRING BOARD...... 7-11

CHAPTER 8. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIA-

GRAM............................................................8-1

[2] SCHEMATIC DIAGRAM ................................8-2

CHAPTER 4. TROUBLESHOOTING TABLE

[1] TROUBLESHOOTING TABLE ....................... 4-1

CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM

[1] SYSTEM BLOCK DIAGRAM ......................... 6-1

[2] TERMINAL BLOCK DIAGRAM ...................... 6-2

[3] MAIN BLOCK DIAGRAM ............................... 6-3

Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

Parts Guide

This document has been published to be used for after sales service only. The contents are subject to change without notice.

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

LC32XL8E

SAFETY PRECAUTION

Service Manual

IMPORTANT SERVICE SAFETY PRECAUTION

Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the

servicing guidelines which follow:

 WARNING

1. For continued safety, no modification of any circuit should be attempted.

2. Disconnect AC power before servicing.

CAUTION:

FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE.

• Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resistor.

• Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor. All checks must be repeated with the AC cord plug connection reversed. (If necessary, a nonpolarized adaptor plug must be used only for the purpose of completing these checks.) Any reading of 1.05 V peak (this corresponds to 0.7 mA peak AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the monitor to the owner.

F7000 (5A/250V)

 BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)

Before returning the receiver to the user, perform the following safety checks:

3. Inspect all lead dress to make certain that leads are not pinched, and check that hardware is not lodged between the chassis and other metal parts in the receiver.

4. Inspect all protective devices such as non-metallic control knobs, insulation materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc.

5. To be sure that no shock hazard exists, check for leakage current in the following manner.

• Plug the AC cord directly into a 220~240 volt AC outlet.

• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15µF capacitor in series with all exposed metal cabinet parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground.

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

TO EXPOSED METAL PARTS

SAFETY NOTICE

Many electrical and mechanical parts in LCD color television have special safety-related characteristics.

These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily increased by using replacement components rated for higher voltage, wattage, etc.

Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features

are identified by “ ” and shaded areas in the Replacement Parts List and Schematic Diagrams.

For continued protection, replacement parts must be identical to those used in the original circuit.

The use of a substitute replacement parts which do not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock, fire or other hazards.

DVM

AC SCALE

1.5k ohm 10W

0.15µF

TEST PROBE

CONNECT TO KNOWN EARTH GROUND

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

Precautions for using lead-free solder

Employing lead-free solder

• “PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.

Example:

L Fa

Indicates lead-free solder of tin, silver and copper.

L F a/a

Using lead-free wire solder

• When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks.

As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 °C, we recommend you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area.

Soldering

• As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 °C which is higher than the conventional lead solder by 40 °C, and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady soldering condition.

Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as required.

If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it.

When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.

• Be careful when replacing parts with polarity indication on the PWB silk.

Lead-free wire solder for servicing

Part No. Description Code

ZHNDAi123250E J φ0.3mm 250g (1roll) BL ZHNDAi126500E J φ0.6mm 500g (1roll) BK ZHNDAi12801KE J φ1.0mm 1kg (1roll) BM

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

LC32XL8E

CHAPTER 1. OPERATION MANUAL

[1] SPECIFICATIONS

Service Manual

Item

LCD panel

Resolution

Video Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60

TV Function TV-Standard Analogue CCIR (B/G, I, D/K, L/L’)

Digital DVB-T (2K/8K OFDM)

Receiving Channel

TV-Tuning System Auto Preset 999 ch: non-Nordic / 9999 ch: Nordic (ATV: 99 ch), Auto Label, Auto Sort

STEREO/BILINGUAL NICAM/A2

Brightness 450 cd/m

Viewing angles H: 176°, V: 176°

Audio amplifier

Speaker

Terminals Antenna

RS-232C D-Sub 9 pin male connector

EXT1 SCART (AV input, Y/C input, RGB input, TV output)

EXT2 SCART (AV input/monitor output, Y/C input, AV Link, RGB input)

EXT3 S-VIDEO (Y/C input), RCA pin (AV input)

EXT4 HDMI

EXT5 HDMI

EXT6 HDMI, Ø 3.5 mm jack

EXT7 15 pin mini D-sub, Ø 3.5 mm jack

EXT8 COMPONENT IN: Y/P

DIGITAL AUDIO OUTPUT Optical SPDIF Digital audio output

C. I. (Common Interface) EN50221, R206001

OUTPUT RCA pin (AUDIO R/L)

Headphones Ø 3.5 mm jack (Audio output)

OSD language Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Italian,

Power Requirement AC 220–240 V, 50 Hz

Power Consumption 140 W (0.4 W Standby) (Method IEC60107) 171 W (0.4 W Standby) (Method IEC60107)

Weight 15.5 kg (Without stand), 18.5 kg (With stand) 18.0 kg (Without stand), 21.0 kg (With stand)

Operating temperature

As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification

•

VHF/UHF E2–E69 ch, F2–F10 ch, I21–I69 ch, IR A–IR J ch (Digital: E5–E69 ch)

CATV Hyper-band, S1–S41 ch

32" LCD COLOUR TV, Model: LC-32XL8E/S/RU

32" Advanced Super View & BLACK TFT LCD 37" Advanced Super View & BLACK TFT LCD

2,073,600 pixels (1,920 x 1,080)

10 W x 2

(40mmx100mm)x2/Ø20mmx2

UHF/VHF 75 Ω Din type (Analogue & Digital)

B(CB)/PR(CR), RCA pin (AUDIO R/L)

Latvian, Lithuanian, Norwegian, Polish, Portuguese, Russian, Slovak, Slovene, Spanish, Swedish, Turkish

0°Cto+40°C

37" LCD COLOUR TV, Model: LC-37XL8E/S/RU

changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units.

NOTE

Refer to the inside back cover for dimensional drawings.

•

Optional accessory

The listed optional accessories are available for this LCD colour TV. Please purchase them at your nearest shop.

Additional optional accessories may be available in the

• near future. When purchasing, please read the newest catalogue for compatibility and check the availability.

No. Part name Part number

1 Wall mount bracket AN-37AG2

2 Attachment AN-37P30

1 – 1

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[2] OPERATION MANUAL

Remote control unit

(Standby/On)

Buttons for useful operations

(Teletext)

ATV: Display analogue teletext.

DTV: Select MHEG-5 and teletext for DTV.

(Reveal hidden Teletext)

(Subtitle)

Switch subtitle languages on/off .

(Freeze/Hold)

Press to freeze a moving image on the screen. Teletext: Stop updating teletext pages automatically or release the hold mode.

(Subpage)

(Top/Bottom/Full)

Set the area of magnification in teletext mode.

0–9 numeric buttons

Set the channel. Enter desired numbers. Set the page in teletext mode.

When the five Nordic countries

• (Sweden, Norway, Finland, Denmark, or Iceland) are selected in the country setting from “Auto Installation”, DTV. services are four digits. When another country is selected, DTV services are three digits.

(Flashback)

Press to return to the previously selected channel or external input.

DTV

Press to access digital TV mode.

ATV

Press to access conventional analogue TV mode.

(Sound mode)

Select a sound multiplex mode.

/ (Volume)

Increase/decrease TV volume.

(Mute)

TV sound on/off.

(WIDE MODE)

Select a wide mode.

AV MODE

Select a video setting.

END

Exit the “MENU” screen.

4 5

6 7

8 9

R/G/Y/B (Colour) buttons

The coloured buttons are correspondingly used to select the coloured items on the screen (e.g. EPG, MHEG-5, Teletext).

LC-32XL8E/S/RU, LC-37XL8E/S/RU

DEMO

Demonstrate the 100 Hz effects in a dual screen format.

(INPUT SOURCE)

Select an input source

EPG

DTV: Display the EPG screen.

RADIO

DTV: Switch between Radio and Data mode.

When only data broadcasting (no

• radio broadcasting) is transmitted by DVB, the radio broadcasting will be skipped.

P. INFO

Press to display programme information which is transmitted through digital video broadcasting in the upper left corner of the screen (DTV only).

Select the TV channel.

(Display information)

Press to display the station information (channel number, signal, etc.) in the upper right corner of the screen.

SLEEP

Press to schedule a time for the TV to automatically standby.

“MENU” screen on/off.

/ / / (Cursor)

Select a desired item on the setting screen.

Execute a command within the “MENU” screen. ATV/DTV: Display the programme list when no other “MENU” screen is running.

(Return)

Return to the previous “MENU” screen.

AQUOS LINK buttons

If external equipment such as a AQUOS BD Player is connected via HDMI cables and is AQUOS LINK compatible, you can use these AQUOS LINK buttons.

16 17

18 19

20 21

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

TV (Front view)

Remote control sensor

TV (Rear view)

Programme (channel) buttons

Volume buttons

OPC sensor

P /

OPC indicator

SLEEP indicator

B (Standby/On) indicator

(INPUT SOURCE) button

MENU button

(Power) button

EXT4 (HDMI) terminal

EXT5 (HDMI) terminal

EXT7 (ANALOGUE RGB/AUDIO)

terminals DIGITAL AUDIO OUTPUT terminal

OUTPUT (AUDIO) terminals

Antenna terminal

EXT6 (HDMI/AUDIO) terminals

RS-232C terminal

EXT8 (COMPONENT/AUDIO)

terminals EXT2 (RGB) terminal

10-

EXT1 (RGB) terminal

11-

WARNING:

Excessive sound pressure from earphones and headphones can cause hearing loss.

EXT3 terminals

12-

Headphones

13-

SERVICE socket

14-

COMMON INTERFACE slot

15-

AC INPUT terminal

16-

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

Preparation

Attaching the stand unit

Before attaching (or detaching) the stand, unplug the AC cord from the AC INPUT terminal.

• Before performing work, spread cushioning over the surface on which you will be laying the TV. This will prevent

• it from being damaged.

CAUTION

Attach the stand in the correct direction.

•

Be sure to follow the instructions. Incorrect installation of the stand may result in the TV falling over.

•

Confirm that there are ten screws with the stand

unit.

Attach the supporting post for the stand unit onto the base using the six screws with the screw driver (supplied) as shown.

Inserting the stand.

Insert the stand into the openings on the bottom of the TV (Hold the stand so it will not drop from the edge of the base area).

Insert and tighten the four short screws into

the four holes on the rear of the TV.

Supporting

post

Soft cushion

NOTE

To detach the stand unit, perform the steps in reverse

• order.

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

Preparation

Inserting the batteries

Before using the TV for the first time, insert two supplied “AAA” size alkaline batteries. When the batteries become depleted and the remote control unit fails to operate, replace the batteries with new “AAA” size batteries.

Open the battery cover.

Insert two supplied “AAA” size alkaline batteries.

Place batteries with their terminals corresponding to the

• ( ) and ( ) indications in the battery compartment.

Close the battery cover.

CAUTION

Improper use of batteries can result in chemical leakage or explosion. Be sure to follow the instructions below.

Do not mix batteries of different types. Different types of batteries have different characteristics.

• Do not mix old and new batteries. Mixing old and new batteries can shorten the life of new batteries or cause

• chemical leakage in old batteries. Remove batteries as soon as they have worn out. Chemicals that leak from batteries can cause a rash. If you

• find any chemical leakage, wipe thoroughly with a cloth. The batteries supplied with this product may have a shorter life expectancy due to storage conditions.

• If you will not be using the remote control unit for an extended period of time, remove the batteries from it.

• When replacing the batteries, use alkaline batteries instead of zinc-carbon ones.

•

Note on disposing batteries:

The batteries provided contain no harmful materials such as cadmium, lead or mercury. Regulations concerning used batteries stipulate that batteries may no longer be thrown out with the household rubbish. Deposit any used batteries free of charge into the designated collection containers set up at commercial businesses.

Using the remote control unit

Use the remote control unit by pointing it towards the remote control sensor. Objects between the remote control unit and sensor may prevent proper operation.

30° 30°

Remote control sensor

Cautions regarding the remote control unit

•

Do not expose the remote control unit to shock. In addition, do not expose the remote control unit to liquids, and do not place in an area with high humidity.

•

Do not install or place the remote control unit under direct sunlight. The heat may cause deformation of the unit.

•

The remote control unit may not work properly if the remote control sensor of the TV is under direct sunlight or strong lighting. In such cases, change the angle of the lighting or the TV, or operate the remote control unit closer to the remote control sensor.

1 – 5

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

Appendix

Troubleshooting

Problem Possible Solution

No power.•

The TV cannot be operated.• External influences such as lightning, static electricity, etc., may cause improper operation. In this

Remote control unit does not operate.•

Picture is cut off.• Is the image position correct?

Strange colour, light colour, or dark

• Adjust the picture tone. colour, or colour misalignment.

Power is suddenly turned off.• The TV’s internal temperature has increased.

No picture.• Are connections to external equipment correct?

No sound.•

The TV sometimes makes a cracking

• This is not a malfunction. This happens when the cabinet slightly expands and contracts sound.

•

Check if you pressed on the remote control unit. If the indicator on the TV lights up red, press .

•

Is the AC cord disconnected? Check if you pressed on the TV.

•

• case, operate the TV after first turning off the power, or unplugging the AC cord and re-plugging it in after one or two minutes.

Are batteries inserted with polarity (

• Are batteries worn out? (Replace with new batteries.)

• Are you using it under strong or fluorescent lighting?

• Is a fluorescent light illuminating to the remote control sensor?

•

• Are screen mode adjustments (WIDE MODE) such as picture size made correctly?

•

• Is the room too bright? The picture may look dark in a room that is too bright.

• Check the “Colour System” setting.

•

• Remove any objects blocking the vent or clean. Is the “Sleep Timer” set? Select “Off” from the “Sleep Timer” menu.

• Is “No Signal Off” or “Ecology” activated?

•

• Is the input signal type selected correctly after connection?

• Is the correct input source selected?

• Is a non-compatible signal being input?

• Is the picture adjustment correct?

• Is the antenna connected properly?

• Is “On” selected in “Audio Only”?

•

Is the volume too low?

• Make sure that headphones are not connected.

• Check if you pressed e on the remote control unit.

•

• according to changes in temperature. This does not affect the TV’s performance.

,-) aligned?

Cautions regarding use in high and low temperature environments

When the TV is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed.

• This is not a malfunction, and the TV will recover when the temperature returns to normal. Do not leave the TV in a hot or cold location. Also, do not leave the TV in a location exposed to direct sunlight or near a

• heater, as this may cause the cabinet to deform and the LCD panel to malfunction. Storage temperature: +5 °C to +35 °C.

1 – 6

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

[3] DIMENSIONS

( ) : LC-32XL8E/S/RU

[ ] : LC-37XL8E/SRU

: LC-32XL8E/S/RU

LC-37XL8E/S/RU

480.0

(572.0)/[638.0]

(517.0)/[581.0]

(55.0)

(130.0)

[156.7]

300.0

[57.0]

(776.0)/[898.0]

(701.5)/[824.4]

99.0 94.6

(396.0)/[464.0]

(332.0)/[369.0]

276.0

300.0

1 – 7

15°

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SHEET FOR BOSS

LC32XL8E

CHAPTER 2. REMOVING OF MAJOR PARTS

Service Manual

[1] REMOVING OF MAJOR PARTS (LC-32X8E/S/RU)

LC-32XL8E/S/RU, LC-37XL8E/S/RU

1. Remove the 3 lock screws , 4 lock screws , 2 lock screws and the 9 lock screws . Detach the Rear Cabinet.

REAR CABINET

2 – 1

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

Wire "KM"

KEY COVER

#Place Wire "KM" between SHEILED and Key PWB

Wire SP-R to SP-R lead

Wire SP-L to SP-L lead

Wire "SP" to WH

Wire "SP-L"

2. Remove all the connectors from PWBs.

Detach the KEY COVER Unit.

Wire "KM"

KEY COVER Unit

FOR Wire "SP"

for Wire "SP-L"

2 – 2

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

#Set PWB to guide lib surely

Pull out Wire "RA" from bottom

R/C, LED PWB Front

Wire "RA"

Next,Push PWB hooked

Wire "RA"

Wire "RA" to WH x3

3. Remove the 2 lock screws and detach the Speaker L/R.

SP-R

4. Remove all the connectors from PWBs.

FORWire"RA"

R/C,LED PWB Back side

Wire "SPE" to WH

Wire "RA"

R/C, LED PWB (with wire)

SP-L

R/C, LED PWB

5. Remove the R/C, LED Unit.

2 – 3

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

#Unshape Wire "SPE" TEMPORARY shaping when insutalling CAB-A, and Shape to WH on OBON

Wire "SPE" TEMPORARY shaping

Don't sandwich Wire "SPE"

6. Remove the 2 lock screws , 6 lock screws and the 6 lock hooks . Detach the LCD Panel Module.

6 7 8

FUSION SUB ASSY

Prepared CAB-A

2 – 4

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

#Caution Don't make mistake Screw Hole

7. Remove the 1 lock screw and detach the Bottom Cover.

BOTTOM COVER

2 – 5

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

#Caution Don't protrude Wire "US" ,"VD" to this area

#For Prevention sandw itch Wire with CAB-B, Push Wire "VD" under MINI-AV

8. Remove the 2 lock screws and detach the MINI AV Unit.

Detach the Conductive Tape.

Remove all the connectors from PWBs.

Wire "US" to WH

Conductive Tape

MINI AV UNIT with GASKET

Wire "US"

MINI AV UNIT

Wire "VD"

2 – 6

Page 17

9. Remove all the connectors from PWBs.

Wire "LB"

Wire "FR"

LC-32XL8E/S/RU, LC-37XL8E/S/RU

Wire "LB/FR" to W H

Wire "LB" to WH

Wire "LA"

Wire "LW"

2 – 7

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

STND ANG SUB ASSY

LCD CTRL With WH

10.Remove the 14 lock screws and detach the Chassis Tray.

CHASSIS TRAY

11.Remove the 5 lock screws and detach the LCD Control Cover.

Remove the 5 lock screws and detach the Stand Angle Sub Ass’y.

32 LCD PANEL

12 12

2 – 8

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

Back Side

12.Remove the 4 lock screws and detach the Stand Support Angle.

STAND ANG

13.Remove the 4 lock screws , 8 lock screws and the 1 lock screw . Detach the Main Shield.

STND SPPRT ANG

MAIN SHIELD

2 – 9

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

B to B connection

Pull same time

Wire "VD"

Wire "US"

Wire "KM"

Wire

Wire "FR"

Wire "LB"

Wire

Wire "LA"

Wire

Wire "LB" to WH Wire "RA","SP" to WH

Wire "RA" to WH

Wire "VD"

Wire "US"

Wire "KM"

Wire

Wire "FR"

Wire "LB"

Wire

Wire "LA"

Wire

Wire "SP"

Wire "LB"

14.Remove all the connectors from PWBs.

Wire "FR","LW" to WH

Wire "RA"

Wire "US"

Wire "VD"

Wire "LW"

Wire "KM"

Wire "FR"

Wire "LA"

2 – 10

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[2] REMOVING OF MAJOR PARTS (LC-37XL8E/S/RU)

SHEET FOR BOSS

LC-32XL8E/S/RU, LC-37XL8E/S/RU

1. Remove the 2 lock screws , 4 lock screws , 3 lock screws , 6 lock screws and the 4 lock screws . Detach the Rear Cabinet.

4 5

REAR CABINET

2 – 11

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

#Place Wire "KM" between SHEILED and Key PWB

Wire "SP-L"

Wire "SP-R"

Wire "SP-L"

Wire "SP-R"

2. Detach the KEY COVER Unit.

Remove all the connectors from PWBs.

KEY COVER Unit

Wire "KM"

2 – 12

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

Wire "RA" from OBON

R/C, LED PWB Front side

R/C, LED PWB Back side

Pull out Wire "RA" from bottom

1st,Set R/C, LED PWB Under LIB

Next,Push PWB hooked

#Set PWB to gide lib surely

Wire "RA"

Wire "RA" to WH

3. Remove the 2 lock screws and detach the Speaker L/R.

Speaker R

4. Remove all the connectors from PWBs.

R/C, LED PWB

(with wire)

R/C, LED PWB

Speaker L

5. Remove the R/C, LED Unit.

2 – 13

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

6. Remove the 9 lock screws , 2 lock screws and the 6 lock hooks . Detach the LCD Panel Module.

7 8

FRONT CABINET

2 – 14

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

Please do not make a mistake in a place to fix with a screw.

7. Remove the 1 lock screw and detach the Bottom Cover.

BOTTOM COVER

2 – 15

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

Wire "SP"

Wire "SP-R" to WH

for Wire "SP"

Wire "LB"

Wire "LA"

8. Remove all the connectors from PWBs.

Wire "SP-L" to WH

Wire"LA","LB"toWH

Wire "LA"

Wire "LB"

2 – 16

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Wire "LB"/"FR" to WH

Wire "LB" to WH x2

Wire "FR"

Wire "LA"

LC-32XL8E/S/RU, LC-37XL8E/S/RU

Wire "LB"/"LA" to WH

Wire "LW"

Wire "LB"

2 – 17

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

Wire "US"

Wire "VD"

Open side

Wire "RA"

for Wire "RA"

Wire "VD"

Wire "US"

9. Remove the 2 lock screws and detach the MINI AV Unit.

WS MINI AV COV

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10.Remove the 5 lock screws and detach the LCD Control Cover.

Detach the 2 Conductive Tapes.

Remove the 14 lock screws and detach the Chassis Tray.

CHASSIS TRAY

CONDUCTIVE TAPE

LCD CNTROL COVER

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STAND ANGLE SUB ASSY

Back side

11.Remove the 5 lock screws and detach the Stand Angle Sub Ass’y.

37 LCD PANEL

12.Remove the 4 lock screws and detach the Stand Support Angle.

STAND SPPRT ANG

STAND ANG

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13.Remove all the connectors from PWBs.

Wire "US" to WH

Wire "US"

Wire "RA"

Wire

Wire "PD"

Wire "PE"

LC-32XL8E/S/RU, LC-37XL8E/S/RU

Wire "RA" to WH

14.Remove the 4 lock screws , 8 lock screws and the 1 lock screw . Detach the Main Shield.

MAIN SHIELD

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B to B connection

Pull same time

Wire "US"

Wire "KM"

Wire "FR"

Wire "LB"

Wire "LA"

Wire "RA","PD" to WH

Wire "RA" to WH

Wire "LB" to WH

Wire "SP-L" to WH

Wire

Wire "VD"

Wire

Wire "VD"

Wire "US"

Wire

Wire "FR"

Wire "LB"

Wire

Wire "LA"

Wire

Wire "SP"

Wire "LA"

Wire "LB"

15.Remove all the connectors from PWBs.

Wire "FR","LW" to WH

Wire "RA"

Wire "US"

Wire "VD"

Wire "KM"

Wire "LW"

Wire "KM"

Wire "SP" to WH

Wire "FR"

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LC32XL8E

CHAPTER 3. ADJUSTMENT PROCEDURE

Service Manual

[1] ADJUSTMENT PROCEDURE

1. Adjustment method after PWB and/or IC replacement due to repair

The unit is set to the optimum at the time of shipment from the factory. If any value should become improper or any adjustment is necessary due to the part replacement, make an adjustment according to the following procedure.

1. Procure the following units in order to replace the main unit, IC3301, IC8101, IC3501, IC3502, IC8301, IC8302, IC8303, or IC8304.

MAIN UNIT: DUNTKE237FM03

NOTE: [Caution when replacing ICs in the main unit (IC1501/IC1502/IC1503/IC1505/IC2002)]

The above ICs are EEPROMs storing the EDID data of HDMI and the monitor microcomputer. Before replacing the relevant part, procure the following parts in which the data have been rewritten.

IC2002 RH-IXB986WJNFQ Monitor microcomputer IC1505 RH-IXC284WJQZS HDMI_EXT4 IC1501 RH-IXC285WJQZS HDMI_EXT5 IC1502 RH-IXC286WJQZS HDMI_EXT6 IC1503 RH-IXC287WJQZS RGB (PC)_EXT7

2. After replacing the LCD panel or LCD control PWB, adjust the VCOM in the following procedure.

1) Enter the process adjustment mode.

2) Use the cursor keys / and P / of R/C to select the item [VCOM ADJ] on the page 10/14.

3) Press the OK key to verify that the adjustment pattern is displayed.

4) Use the +/- keys of VOL of R/C to adjust the flicker in the center of the screen to minimum.

5) When the optimal state is achieved in Step 4, press the OK key to turn the pattern to OFF.

2. Entering and exiting the adjustment process mode

1. Unplug the AC power cord of running TV set to force off the power.

2. While holding down the “VOL (-)” and “INPUT” keys on the set at once, plug in the AC power cord to turn on the power.

The letter “K” appears on the screen.

3. Next, hold down the “VOL (-)” and “P ( )” keys on the set at once.

Multiple lines of blue characters appearing on the screen indicate that the set is now in the adjustment Process mode.

If you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure.

4. To exit the adjustment process mode after the adjustment is done, unplug the AC power cord to force off the power. (When the power is turned off with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait 10 seconds or so before plugging.)

CAUTION: Use due care in handling the information described here lest the users should know how to enter the adjustment process mode. If the

settings are tampered with in this mode, unrecoverable system damage may result.

3. Remote controller key operation and description of display in adjustment process mode.

1. key operation

Remote controller key Main unit key Function

P ( / ) VOL (+/-) VOL (+/-) Changing a selected item setting (+1/-1)

Cursor ( / ) Cursor ( / ) INPUT INPUT Input source switching (toggle switching) (TV→EXT1~8) RETURN — Returning to a present page OK — Executing a function

Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.

P ( / )

— Turning a page (PREVIOUS / NEXT)

— Changing a selected item setting (+10/-10)

Moving an item (line) by one (UP/DOWN)

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4. Description of display

(1) Page/ of present number of total pages (4) Inducing display

1/14 INPUT1 AUTO EURO 37E_XL9

MAIN Version BOOT Version Monitor Version FRC Version CPLD Version EQ DATA CHECKSUM LAMP ERROR MONITOR ERR CAUSE NORMAL STANDBY CAUSE ERROR STANDBY CAUSE

(7) Item name (8) Parameter

(2) Input that has been selected now

(3) Present colour system (5) Model name

1.00 (E 2007/07/10 D)

1.0

a6 ROM

0 11 11 11 11 0

1) 0 2) 0 3) 0

0H 0M 0H 0M 0H 0M

4) 0 5) 0

0H 0M 0H 0M

No. Description Display specification

(1) Page of present number of total pages 2char/2char Decimal Number mark. (2) Input that has been selected now TV/INPUT1/INPUT2/INPUT3/INPUT5/INPUT6/INPUT7/INPUT8 (3) Present colour system NTSC/PAL/SECAM/COMP15K/COMP33K/COMP45K/COMP28K/COMP31K (4) Inducing display EUROPE/RUSSIA/SWEDEN (5) Model name MODEL NAME (6) Item name Max. 30 char (7) Parameter Max. 60 char

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5. Adjustment process mode menu

The character string in brackets [ ] will appear as a page title in the adjustment process menu header.

Page Line Item Description Remarks (adjustment detail, etc.)

1/14 1 MAIN Version Main software version

2 BO OT Vers ion BOOT Ver sion. 3 Monitor Version Monitor software version 4 FRC Version FRC Version 5 CPLD Version CPLD Version. 6 EQ DATA CHECKSUM Audio data checksum. 7 LAMP ERROR Number of termination due to lamp error. 8 MONITOR ERR CAUSE Last error standby cause. 9 NORMALSTANDBY CAUSE Situation that became standby at the end.(Excluding the error)

10 ERROR STANDBY CAUSE [1] 00H 00M Error standby cause Total operating time before error.

[2] 00H 00M [3] 00H 00M [4] 00H 00M [5] 00H 00M

2/14 1 INDUSTRY INIT Enter Initialization to factory settings execution.

2 INDUSTRY INIT(-Hotel) OFF Initialization to factory settings execution.(Hotel mode is excluded) 3 HOTEL MODE OFF Hotel mode setting execution. 4 Center Acutime 5H 0M Main operating hours. 5 RESET OFF Main operating hours reset. 6 Backlight Acutime 19H 35M Backlight operating hours. 7 RESET OFF Backlight operating hours reset. 8 LAMP ERROR RESET OFF Lamp error reset.

9 ADJ PARAM SET Enter ADJ PARAM SET 10 VIC XPOS X-coordinate setting for VIC READ 11 VIC YPOS Y-coordinate setting for VIC READ 12 VIC SIGNAL TYPE MAIN Signal type setting for VIC READ

13 VIC READ OFF

3/14 1 RF AGC ADJ Enter RF-AGC auto adjustment execution

2 TUNER ADJ Enter TUNER auto adjustment execution

3 PAL+TUNER ADJ Enter PAL TUNER auto adjustment execution

4 RF AGC ADJ(CA-8CH) Enter RF-AGC auto adjustment execution (CA-8CH)

5 TUNER ADJ(CA-8CH) Enter TUNER auto adjustment execution (CA-8CH)

6 PAL+TUNER ADJ(CA-8CH) Enter PAL TUNER auto adjustment execution (CA-8CH)

7 RF AGC RF AGC adjustment

8 TUNER DAC TUNER signal level adjustment

9 RF AGC READ OFF

4/14 1 PAL ADJ Enter PAL adjustment

2 SECAM ADJ Enter SECAM adjustment

3 N358 ADJ Enter N358 adjustment

4 PAL CONTRAST PAL contrast adjustment

5 SECAM CONTRAST SECAM CONTRAST adjustment

6 N358 CONTRAST N358 CONTRAST adjustment

5/14 1 HDMI CEC TEST Enter CEC test

2 INSPECT USB TERM Enter

3 MONIDATA READ[TEMP/OPC] OFF MONITOR Temperature/ OPC Acquisition tool.

4 CAUSE RESET Enter

6/14 1 COMP15K ALL ADJ Enter Component 15K picture level adjustment

2 COMP15K MAIN Y GAIN Y GAIN adjustment value

3 COMP15K MAIN CB GAIN Cb GAIN adjustment value

4 COMP15K MAIN CR GAIN Cr GAIN adjustment value

5 COMP15K Y OFFSET OFFSET adjustment value

6 COMP15K CB OFFSET Cb OFFSET adjustment value

7 COMP15K CR OFFSET Cr OFFSET adjustment value

7/14 1 HDTV ADJ Enter HDTV video level adjustment

2 HDTV Y GAIN HDTV Y GAIN adjustment value

3 HDTV CB GAIN HDTV Cb adjustment value

4 HDTV CR GAIN HDTV Cr adjustment value

5 HDTV Y OFFSET HDTV Y OFFSET adjustment value

6 HDTV CB OFFSET HDTV Cb OFFSET adjustment value

7 HDTV CR OFFSET HDTV Cr OFFSET adjustment value

Picture level acquisition function. (Level appears in green on the upper right)

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Page Line Item Description Remarks (adjustment detail, etc.)

8/14 1 ANALOG PC ADJ Enter DVI ANALOG video level adjustment

2 R OFFSET R CUTOFF adjustment value

3 G OFFSET G CUTOFF adjustment value

4 B OFFSET B CUTOFF adjustment value

5 R GAIN R DRIVE adjustment value

6 G GAIN G DRIVE adjustment value

7 B GAIN B DRIVE adjustment value

9/14 1 SCART RGB ADJ Enter SCART RGB level adjustment

2 SCART R CUTOFF SCART R CUTOFF adjustment value

3 SCART G CUTOFF SCART G CUTOFF adjustment value

4 SCART B CUTOFF SCART B CUTOFF adjustment value

5 SCART R GAIN SCART R GAIN adjustment value

6 SCART G GAIN SCART G GAIN adjustment value

7 SCART B GAIN SCART B GAIN adjustment value

10/14 1 VCOM ADJ Enter

2LCD LUMA ADJ

3LCD LUMA UP

4LCD LUMA DOWN

11/14 1 DDRA TEST1 Enter

2 DDRA TEST2 Enter

3 DDRB TEST1 Enter

4 DDRB TEST2 Enter

5 DDRB TEST3 Enter

6 FRC ON/OFF Enter

7 FRA DDRA BIST Enter

8 FRA DDRB BIST Enter

9 POSTFILTER ON/OFF ON

12/14 1 R GAIN(LO)

2 G GAIN(LO)

3 B GAIN(LO)

4 R GAIN(HI)

5 G GAIN(HI)

6 B GAIN(HI)

13/14 1 LCD TEST PATTERN OFF Pattern with built-in LCD controller display

2 LCD AGI TEST PATTERN OFF Pattern with built-in LCD controller display

3 LCD EVA TEST PATTERN OFF Pattern with built-in LCD controller display

4 FRA TEST PATTERN OFF Pattern with built-in LCD controller display

14/14 1 EEP SAVE OFF Writing setting values to EEPROM.

2 EEP RECOVER OFF Reading setting values from EEPROM.

3 MONITOR ERROR CAUSE RESET OFF

4 STANDBY CAUSE RESET OFF Reset stand by cause.

5 PRODUCT EEP ADR 0x 0

6 PRODUCT EEP DATA 0x 0

6. Special features

1. NORMAL STANDBY CAUSE (Page 1/14)

Display of a cause (code) of the last standby.

The cause of the last standby is recorded in EEPROM whenever possible.

Checking this code will be useful in finding a problem when you repair the troubled set.

2. EEP SAVE (Page 14/14)

Storage of EEP adjustment value

3. EEP RECOVER (Page 14/14)

Retrieval of EEP adjustment value from storage area.

7. Lamp error detection

1. Function

This LCD color TV set incorporates a lamp error detection feature that automatically turns off the power for safety under abnormal lamp or lamp circuit conditions. If by any chance anything is wrong with the lamp or lamp circuit or if the lamp error detection feature is activated for some reason, the following will result.

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1) The power is interrupted in about 6 seconds after it is turned on.

(The power LED on the front of the TV set turns red from green and keeps blinking in red: ON for 250 ms and OFF for 1 sec.).

2) If the above phenomenon 1) occurs 5 times consecutively, it becomes impossible to turn on the power. (The power LED remained red).

2. Measures

1) Checking with lamp error detection OFF

Enter the adjustment process mode, referring to 2. Entering and exiting the adjustment process mode.

If there is a problem with the lamp or lamp circuit, the lamp will go out. (The power LED is green.)

Then, you can check the operation to see if the lamp and lamp circuit are in trouble.

2) Resetting the lamp error count

After the lamp and lamp circuit are found out of trouble, reset the lamp error count. If a lamp error is detected five consecutive times, the power cannot be turned on. Using the cursor ( / ) key, move to the cursor to [LAMP ERROR RESET], Line 8 on adjustment process mode service page 2/14. With the cursor ( / ) keys, select the [LAMP ERROR RESET] value. Finally press the cursor (OK) eys to reset the value to “0”.

Table of contents of adjustment process mode Page 2/14

INDUSTRY INIT Enter INDUSTRY INIT(-Hotel) OFF HOTEL MODE OFF Center Acutime RESET Backlight Acutime RESET

LAMP ERROR RESET

ADJ PARAM SET Enter VIC XPOS 0 VIC YPOS 0 VIC SIGNAL TYPE MAIN VIC READ OFF

OFF

Resetting to "0"

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8. Public Mode (Hotel Mode)

1. Starting the Public Mode

• There are two following ways to display the PUBLIC Mode setting screen.

1) On the process adjustment mode screen (2/14), set the ”HOTEL MODE” Flag to ON.

Turn off the power, and turn it on again, pressing the and keys of the main unit at the same time.

CHANNEL UP

Volume UP

2) Enter the Pass Word, and start the unit.

a) Turn on the power, pressing the and keys of the main unit at the same time.

INPUT

Volume UP

b) Display the Pass Word input screen.

Operation procedure

• The initial input position is the digit at the left end.

• For the numeric keys to of R/C, key input is accepted. Input of the other keys is prohibited.

• Change “-” to “*” by inputting the numeric key at the input position, and shift the input position rightward one digit.

• When three digits are completely input, the Pass Word is judged.

c) Check the Pass Word by inputting three digits.

2 7

If the Pass Word is , it shifts to the PUBLIC Mode setting screen.

In another case, the screen is erased, and it operates in the ordinary mode.

2. Exiting the Public Mode screen

• There are two following ways to exit the Public Mode setting screen.

1) Turn off the power.

2) Select “Execution” in the PUBLIC_Mode to execute it.

Activate the restart under the set content. Here, the START input SOURCE setting is excluded since this item is referred to only when the power is turned on.

• Each set value in Public Mode is initialized when resetting to factory settings.

(The setting of the Public Mode in the process mode is also initialized.)

In Addition, industry initialization for initializing items other than each set value in Public Mode is established in the process mode.

[INDUSTRY INIT(-HOTEL)]

• Each setting is valid only when HOTLE MODE is set to ON.

• To reflect each set value, perform AC OFF/ON after determination by executing.

Set value of the Public Mode

3. Basic operation in the Public Mode

Volume (+/–) or Cursor ( / )

Channel ( / ) or Cursor ( / )

Change or execution of the set value. Movement to the selected item.

Decision (ok) Execution (Used by the items “Execution” and “RESET”.) PUBLIC Mode R/C Ordinary operation mode: It enters the PUBLIC Mode.

PUBLIC MODE Flag is set to “ON”.

PUBLIC Mode: It exits the PUBLIC Mode.

PUBLIC MODE Flag does not change. Any set item in PUBLIC Mode is not initialized.

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Public Mode

POWER ON FIXED [VARIABLE]

SHUT DOWN MODE [NORMAL]

MAXIMUM VOLUME [60]

VOLUME FIXED [VARIABLE]

VOLUME FIXED LEVEL [20]

RC BUTTON [RESPOND]

PANEL BUTTON [RESPOND]

MENU BUTTON [RESPOND]

AV POSITION FIXED [VARIABLE]

ON SCREEN DISPLAY [YES]

INPUT MODE START [NORMAL]

INPUT MODE FIXED [VARIABLE]

LOUD SPEAKER [ON]

RC PATH THROUGH [OFF]

232C POWON [DISABLE]

HOTELMODE [ON]

RESET

EXECUTE

4. Operation after “RESET”

Select “RESET” in the PUBLIC Mode, and it operates as follows when it is executed (refer to the basic operation).

• The set contents in the PUBLIC mode are initialized.

• It does not exit the PUBLIC mode.

• If not executed, the reset contents are not reflected.

• If “EXCUTE” is not executed, the content that does RESET is not reflected.

5. Setting items (* Item names and selective items are expressed in English.)

1) Power ON fixed [POWER ON FIXED]

Option “VARIABLE”, “FIXED_ALL”, “FIXED_BODYKEY” or “RC RESPOND” (loop enabled) Default “VARIABLE” Function • When set to “FIXED_ALL”, the “POWER/RECEPTION” key on the main unit or remote control is disabled.

However, the power can be turned off using the “MAIN POWER” switch.

• For some models, the (MAIN) POWER switch is also disabled.

• When set to “FIXED_BODYKEY”, only the “MAIN POWER” key on the main unit is disabled (the remote control is enabled).

• When selecting “RC RESPOND”, the main unit’s POWER switch toggles between ON and Standby (the same operation as the remote control).

Key disabled when set other than default Remarks When selecting to “FIXED_ALL”, it functions with the correspondence which isn’t done about other standby factors

If the power button is pressed in the ordinary mode when set to “FIXED_ALL”, the caution is displayed for 5 seconds.

When power button on the main unit is pressed When power button on R/C is pressed

• OFF TIMER (SLEEP)

(see below).

• No operation OFF

• No signal OFF (including the power management)

No Power off by power button. No Power off by remote control.

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* The OSD display is an example.

If another ODS is previously displayed, the status is reset (MENU or similar).

2) Instantaneous current shutdown setting when turning off the power [SHUT DOWN MODE]

Option “NORMAL” or “QUICK” Default NORMAL Function • Scanning or recording of the digital tuner is enabled/disabled when turning off the power. It is possible to put into

the standby state instantaneously due to power off input.

Remarks When selecting “QUICK”, the function does not work for the following items (The possible method differs from model

to model: deleting the item, selection impossible, etc.)

• ON TIMER, QUICK START, DIGITAL FIXED, etc.

3) Volume maximum level [MAXIMUM VOLUME]

Option 0 ~ 60 (loop disabled) Default 60 Function The volume cannot be increased more than the adjusted value (the main unit’s speaker only). Exception • In the adjustment process, the volume can be set as desired regardless of this setting. Remarks • When set to 59 or less, only the figure is displayed in the normal mode; the volume bar is not displayed.

• The volume of the headphones or monitor output is limited.

• The setting is impossible when VOLUME FIXED is set other than VARIABLE.

4) Volume fixed [VOLUME FIXED]

Option “VARIABLE”, “FIXED”, “AC CTRL” or “AC/RC CTRL” (loop enabled) Default “VARIABLE” Function • FIXED: The volume is fixed to the value adjusted in the volume fixed level.

• AC CTRL: In the case of ACON, the unit starts at the volume specified in the volume fixed level.

• AC/RC CTRL: The unit starts at the volume specified in the volume fixed level.

Exception • In the adjustment process, the volume can be set to any level regardless of this setting. Key disabled when set to FIXED

Remarks • VOLUME FIXED has priority over MAXIMUM VOLUME.

• VOLUME UP/DOWN (VOL+/-) [both remote control and main unit]

• MUTE (MUTE)

* The main unit’s keys for the menu operation are enabled.

• The volume of the headphones or monitor output is fixed.

• The volume is not displayed when operating the above disabled keys.

• VOLUME can be abbreviated to VOL.

5) Volume fixed level [VOLUME FIXED LEVEL]

Option 0 ~ 60 (loop disabled) Default 20 Function The volume is fixed to the adjusted value (the main unit’s speaker only). Exception • In the adjustment process, the volume can be set to any level regardless of this setting. Remarks • When setting VOLUME FIXED to “VARIABLE”, the setting cannot be changed.

• VOLUME can be abbreviated to VOL.

6) Remote control operation [RC BUTTON]

Option “RESPOND”, “NO RESPOND” or “LIMITED” (loop enabled) Default RESPOND Function The operation of the remote control’s keys is set.

• When set to “NO RESPOND”, the remote control’s keys in the normal state are disabled. The POWER key (RECEPTION/STANDBY key) is also disabled.

• When set to “LIMITED”, only a part of keys (CHANNEL, etc.) is enabled and other keys are disabled. (POWER, VOLUME , CHANNEL , LIGHT CONTROL (BRIGHTNESS SENSOR), BROADCAST SELECT)

Exception • The PROCESS MODE, INSPECTION MODE and HOTEL MODE keys are enabled regardless of this setting.

• All the keys are enabled regardless of this setting while entering the process mode, inspection mode or hotel mode.

Remarks The keys enabled when set to “LIMITED” correspond to those on the remote control for hotel; they differ from model

to model.

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7) Main Unit Operation [PANEL BUTTON]

Option “RESPOND” or “NO RESPOND” (loop enabled) Default RESPOND Function NO RESPOND: The main unit’s keys are disabled excluding the POWER key (RECEPTION/STANDBY key). Exception • The start operation in the process mode, inspection mode or hotel mode is enabled regardless of this setting.

• All the keys are enabled regardless of this setting while entering the process mode, inspection mode or hotel mode.

• For the main unit’s MENU key, menu operation is possible regardless of the setting during the initial setting when the power is turned on for the first time.

8) Menu operation [MENU BUTTON]

Option “RESPOND” or “NO RESPOND” (loop enabled) Default RESPOND Function The MENU key on the main unit or remote control is disabled. Exception • The PROCESS MODE, INSPECTION MODE and HOTEL MODE keys are enabled regardless of this setting.

• All the keys are enabled regardless of this setting while entering the process mode, inspection mode or hotel mode.

Key disabled when set other than default excluding the MENU key

Remarks When set to”NO RESPOND”

All the direct transition keys to menu display (AUTO PRESET, MANUAL MEMORY and others)

• For the models with the MENU key on the main unit, menu operation is possible regardless of the setting during the initial setting when the power is turned on for the first time

9) AV position fixed [AV POSITION FIXED]

Option “VARIABLE” or “FIXED” (loop enabled) Default “VARIABLE” Function • When set to “FIXED”, the image adjustment and sound adjustment items in the menu are fixed in the selected

Remarks • When receiving the sound select direct keys (AV POSITION key, OPC, DOLBY key, etc.), only the actual state is

10)OSD display [ON SCREEN DISPLAY]

Option “YES”, “NO” or “LIMITED” (loop enabled)

Default YES Function • When set to “NO”, the following OSD is not displayed.

Key which may be enabled (Example of the confusing key)

Key disabled when set other than default (example)

Remarks • When set to “NO”,

state.

• When receiving “AV POSITION” of the remote control, only the actual state is displayed, and no setting is changed.

displayed; no setting is changed.

• Since the settings for the hotel mode are retained even after the personal data is initialized, each item for the AV position and image adjustment and each value for the sound adjustment are not initialized.

“LIMITED” is looped only in case of need (destination).

Registration, setting, adjustment menu, channel call, volume bar, and input select

• When set to “LIMITED”, only a part of OSD is not displayed.

* OK if simple input select occurs or the original state returns soon if left.

* The keys by which visibility of the screen or sound is changed cannot be used.

STILL IMAGE, SCREEN DISPLAY, OFF TIMER, AV POSITION, BRIGHTNESS SENSOR, SCREEN SIZE SELECT, AUTO PRESET, MANUAL MEMORY, IMAGE SELECT, SOUND SELECT, LANGUAGE

The set time of OFF TIMER “SLEEP” is cleared. When the card function is set to “NO”, all the functions including input select and direct keys are invalid.

11)Start mode [INPUT MODE START]

Option “NORMAL” or “Input source 1 (input selection or channel) • • • (loop enabled) Default NORMAL Function The input source or channel to start when turning on the power is set.

If “NORMAL”, the content of the last memory is followed.

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Remarks • When set other than “NORMAL”,

Display of the channel setting menu and channel setting operation are prohibited.

• When set to “NORMAL”, “START MODE FIXED” is set to “VARIABLE” and selection is prohibited.

Example of option: “NORMAL”

“TVD(014TV)”, “INPUT1”, “INPUT2”, “INPUT3”, “NPUT8”, “HDMI”, “HDMI2”, “HDMI3”, “PC”

12)Input fixed [INPUT MODE FIXED]

Option “VARIABLE”, “FIXED”, “AC CTRL” or “AC/RC CTRL” (loop enabled) Default VARIABLE Function When set to “FIXED”, switching to another channel or input is impossible after start-up in the set value of “INPUT

MODE START”. When set to “AC CTRL”, the unit starts in the set value of “INPUT MODE START” in the case of the ACON only.

When set to “AC/RC CTRL”, the unit starts in the set value of “INPUT MODE START”. Key disabled when set to”FIXED” (example)

Remarks • If the “START MODE” setting is “NORMAL”, this item cannot be set.

13)Speaker ON/OFF selection [LOUD SPEAKER]

Option “ON” or “OFF”(loop enabled) Default ON Function The sound from the speakers is not output even if the headphones are not used. Remarks • When the VOLUME UP/DOWN key is pressed, the mute icon is displayed for 4 seconds.

CHANNEL , DIRECT CHANNEL buttons, FLASHBACK, INPUT SELECT, TV/VIDEO, AUTO PRESET,

MANUAL MEMORY, i.LINK, DIRECT INPUT SELECT, ATV, DTV, EPG, RADIO

Set to “VARIABLE”.

• When set to “FIXED” The channel setting menu and input selection menu in the menu are not displayed.

• For the MUTE key and sound-related keys, caution is displayed.

• For the headphones and monitor output sound, normal operation is possible.

14)Remote control path through [RC PATH THROUGH]

Option “OFF”, “ON:TV RCE” or “ON:TV RCD” (loop enabled) Default OFF Function The signal received by the remote control’s light-receiving section is output to the blank pin (9pin) of RS232C. Exception • Even in the case of “ON:TV RCD”, the PROCESS MODE, INSPECTION MODE and HOTEL MODE keys are

enabled.

• Even in the case of “ON:TV RCD”, all the keys are enabled while entering the PROCESS MODE, INSPECTION MODE and HOTEL MODE.

Remarks • The model always outputting and that impossible to output exist due to the structure of the hardware.

15)232C power ON control [232C POWON]

Option “ENABLE” or “DISABLE” (loop enabled) Default DISABLE Function Power ON by the 232C command is enabled/disabled in the standby state.

The same function as 232C command “RSPW”. “ENABLE”: POWR0001 is always enabled. “DISABLE”: Start-up may be impossible at POWR0001. (If the 232C command reception module is set to OFF, the command is invalid.)

16)Hotel mode setting [HOTELEMODE]

Option “OFF” or “ON” (loop enabled) Default OFF Function The items set in the hotel mode setting menu are enabled or disabled.

The same item as [HOTELEMODE] in the adjustment process menu.

Remarks • Each operation of the hotel mode is impossible unless this item is set to ON.

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9. Video signal adjustment procedure

* The adjustment process mode menu is listed in Section 5.

Signal generator level adjustment check (Adjustment to the specified level)

• Composite signal PAL : 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)

• RGB signal : 0.7Vp-p ± 0.02Vp-p

• 15K component signal (50 Hz) : Y level : 0.7Vp-p ± 0.02Vp-p (Pedestal to white level) : PB, PR level : 0.7Vp-p ± 0.02Vp-p

• 33K component signal : Y level : 0.7Vp-p ± 0.02Vp-p (Pedestal to white level) : PB, PR level : 0.7Vp-p ± 0.02Vp-p

1. Entering the adjustment process mode

Enter the adjustment process mode according to Section 2.

2. RF AGC adjustment

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

PAL Split Field Colour Bar RF signal U/V

[Terminal] TUNER

• Feed the PAL Split Field colour bar signal (E-12ch) to TUNER. Signal level: 55 dB µV ± 1dB (75Ω LOAD)

[E-12CH]

LC-32XL8E/S/RU, LC-37XL8E/S/RU

2 Auto adjustment

performance

3. PAL signal & tuner adjustment

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

2 Auto adjustment

performance

Page 3/14 Bring the cursor on [RF AGC ADJ] and press [OK]

PAL Full Field Color Bar Composite or RF signal

[Terminal] EXT1 SCART IN TUNER

Page 3/14 Bring the cursor on [PAL+TUNER ADJ] and press [OK]

㸡100% white

[RF AGC ADJ OK] appears when finished.

• Feed the PAL full field colour bar signal (75% colour saturation) to EXT1 SCART IN.

• Feed the RF signal (PAL colour bar) to TUNER.

• Make sure the PAL colour bar pattern has the sync level of 7:3 with the picture level.

㪲VIDEO in Signal]

㸡100% white

[PAL+TUNER ADJ OK] appears when finished.

[RF Signal]

㸡100% white

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4. SECAM adjustment

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

SECAM Full Field Colour Bar signal

[Terminal] EXT1 SCART IN

• Feed the SECAM full field colour bar signal (75% colour saturation) to EXT1 SCART IN.

100% white

Black

2 Auto adjustment

performance

5. ADC adjustment (Component 15K)

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

2 Auto adjustment

performance

6. ADC adjustment (Component 33K)

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

Page 4/14 Bring the cursor on [SECAM ADJ] and press [OK]

COMP15K, 50Hz 100% Full Field Colour Bar signal

[Terminal] EXT8 COMPONENT IN

Page 6/14 Bring the cursor on [COMP15k ALL ADJ] and press [OK]

COMP33K 100% Full Field Colour Bar signal

[SECAM ADJ OK] appears when finished.

• Feed the COMPONENT 15K 100% full field colour bar signal (100% colour saturation) to EXT8 COMPONENT IN.

100% white

[COMP15k ALL ADJ OK] appears when finished.

• Feed the COMPONENT 33K 100% full field colour bar signal (100% colour saturation) to EXT8 COMPONENT IN.

Black

2 Auto adjustment

performance

[Terminal] EXT8 COMPONENT IN

Page 7/14 Bring the cursor on [HDTV ADJ] and press [OK]

100% white

[HDTV ADJ OK] appears when finished.

3 – 12

Black

Page 45

7. PC signal adjustment (ANALOG D-sub15PIN)

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

XGA 60Hz 100% Full Field Colour Bar signal

[Terminal] EXT7 PC IN

LC-32XL8E/S/RU, LC-37XL8E/S/RU

• Feed the XGA 60Hz 100% full field colour bar signal (100% colour saturation) to EXT7 PC IN.

100% white

Black

2 Auto adjustment

performance

8. RGB adjustment (SCART)

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

2 Auto adjustment

performance

Page 8/14 Bring the cursor on [ANALOG PC ADJ] and press [OK]

RGB15K, 50Hz 100% Full Field Colour Bar signal

[Terminal] EXT1 SCART IN

Page 9/14 Bring the cursor on [SCART RGB ADJ] and press [OK]

[ANALOG PC ADJ OK] appears when finished.

• Feed the RGB15k 50Hz 100% full field colour bar signal (100% colour saturation) to EXT1 SCART IN.

100% white

[SCART RGB ADJ OK] appears when finished.

Black

10. White Balance Adjustment

For white balance adjustment, adjust the offset values on pages 12/14.

[Condition of the unit for inspection]: PC mode, backlight (+16), colour temp (High)

[Input signal condition] : HDMI 1080i 15IRE(LO), 78IRE(HI)

[Adjustment reference device] : Minolta CA-210

[Input signal condition] : HDMI 1080i 15IRE(LO), 78IRE(HI)

[Adjustment]

1) Display the current adjustment status at point HI. (Page 12/14 of process adjustment)

Feed the 78IRE signal.

2) Read the value of the luminance meter. x=0.272, y =0.277

3) Change R GAIN(HI)/ B GAIN(HI) (Adjustment offset value) on page 12/14 of process adjustment so that the values of the luminance meter approach x=0.272 and y =0.277.

(Basically, G is not changed. If adjustment fails with R and B, change G. When G is lowered, the weaker of R and B must be fixed.)

4) Display the adjustment status of the current point LO.

Feed the 15IRE signal

Change R GAIN(LO)/ B GAIN(LO) (adjustment offset value) on page 12/14 of process adjustment so that the values of the luminance meter approach x =0.272 and y = 0.277.

5) Both HI and LO are repeating the step from 1 to 4 until becoming an aim value.

[Adjustment reference standard value]

Adjustment spec ± 0.002 Inspection spec ± 0.004 (point LO)

Adjustment spec ± 0.001 Inspection spec ± 0.002 (point HI)

11. Confirmation item

1. Magi-Link Inspection

The thing that the Magi-Link circuit operates is confirmed.

2. HDMI-CEC Inspection

The thing that the HDMI-CEC circuit operates is confirmed.

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

30%

100%

44%

12. Initialization to factory settings

CAUTION: When the factory settings have been made, all user setting data, including the channel settings, are initialized.

1 Factory settings It ends by the AC power-off.

After adjustments, exit the adjustment process mode. To exit the adjustment process mode, unplug the AC power cord from the outlet to forcibly turn off the power. When the power is turned off with the remote control, unplug the AC power cord and plug it back in (wait approximately 10 seconds before plugging in the AC power cord) Please execute the initialized in the factory setting again when you turn on the power supply after the initialized in the factory setting is set.

(The adjustments done in the adjustment process mode are not initialized.) Keep this in mind when initializing these settings.

Adjustment item Adjustment conditions Adjustment procedure

(See to below caution)

• Enter the adjustment process mode.

• Move the cursor to [INDUSTRY INIT] on page 2/14.

• Use the R/C key to select a region from [EUROPE/RUSSIA/SWEDEN] and press the [OK] key.

• “EXECUTING” display appears.

• After a while, “INDUSTRY INIT SUCCESS” display appears, the setting is completed.

When succeeding: Background color (green) When failing: Background color (red)

The following items are initialized in the factory setting.

1) User settings

2) Channel data (e.g. broadcast frequencies)

3) Maker option setting

4) Password data

13. Upgrading the software

1. Turn off the AC power (Unplug the AC power cord).

2. Insert the upgrading USB flash memory for upgrade into the service slot.

3. While holding down the power button, plug in the AC power cord of the main unit to turn on the power.

4. Upgrade begins automatically.

After the set starts, the upgrade screen like the figure below is displayed.

System Version: E0804071

BANK1

BANK2

STATUS

5. If any of the procedures fails, the following upgrade failure screen shows up. For the failing procedure, the “NG” marking turns red.

NOTE: In such case, try to upgrade the software again. If it still fails, the hardware may be in trouble.

System Version: E0804071

BANK1

BANK2

STATUS

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

100%

6. When all the procedures are complete, the following upgrade success screen shows up. The new software version can be confirmed on screen. The version number appears when each item has been successfully upgraded. Finally the main version number appears on screen.

System Version: E0804071

BANK1

BANK2

STATUS

UPGRADECO MPLETE

7. Turn off the AC power (Unplug the AC power cord). Take out the upgrading USB flash memory.

8. Now the software has been upgraded.

NOTE: Then get the set started and call the process adjustment screen 1/14 to check the main software version.

CAUTION

1) Do not take out and put in the USB flash memory during formatting.

2) It takes about one minute to the rewriting completion.

Please confirm the upgrade status on the screen becomes 100%.

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LC32XL8E

CHAPTER 4. TROUBLESHOOTING TABLE

Service Manual

[1] TROUBLESHOOTING TABLE

Power unit operation check.

Are the power cord and harness in the unit properly connected? NO Connect the power cord and harness properly, and turn on the

power.

YES

Is F7000 normal?

YES

Is B_BUS (+280V) output? (Set the main power SW to OFF.)

* When power on/off switch is on • • • About +400V

YES Is a voltage of BU5V applied to pin (8) of connector (PD)? (Set the main power SW to OFF.)

NO Does the PFC circuit operate normally?

NO Does the switching circuit operate normally?

Isn't FL7001, L7000, L7001, CX7000-1, Z7000, BD7000, TH7000, Z7001, IC7801, etc. out of order? Moreover, whether the short-circuit with the circumference circuitis checked.

(L7800, L7801, T7800, D7806, Q7804-5, IC7800-1 and etc. And, the circuit around the protection circuit etc. is checked.)

Check circuit around the primary side (T7901, IC7904, Q7902, Q7912-4, D7905-6, D7910, etc.), the secondary side(D7918, L7900, etc.), the AC_DET circuit (D7924, IC7909, IC7902, Q7910, Q7915, etc.), and the protection circuit.

YES Are INV60V, UR15, and S15V output as for the power on/off

switch when it is on?

YES Similarly, is PNL12V output as for the power on/off switch when it is on?

NO Does the inverter circuit operate normally?

Check circuit around the primary side (T7001, T7600, IC7603, IC7601, IC7600, Q7600-2, D7608, D7610, TH7600, etc.), the secondary side (D7560, L7560, D7150, L7150, L7152, etc.), the PS_ON circuit (Q7300-1, etc.), and the protection circuit.

NO Check PNL_POW circuit of Q7121-2, etc. and the circuit around

the regulator circuit etc. of IC7121, L7121, D7121, etc.

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The sound is not emitted from the speaker though the picture has come out.

No sound output in all modes?

TEREMINAL UNIT: Is the audio signal output of pins (38) (L-ch) and (39) (R-ch) of IC1404 (CODEC) normal?

YES Is audio signal input to pin (5/L), pin (9/R) of IC1301 (AMP)? NO Check the line between IC1404 and IC1301.

YES Is MUTE circuit [SP_MUTE_LINE, S_STBY_LINE] normal? NO Check the SP_MUTE_LINE and S_STBY_LINE.(Q1302, etc.)

YES Is the audio signal output of pins (2, 1) (L-ch) and (3, 4) (R-ch) of

P1301 (AOUDIO-CONNECTOR) normal?

YES Check Speaker Box (right and left) and wire harness.

NO Check IC1404 and its peripheral circuits.

NO Check IC1301 and its peripheral circuits.

No sound (during the reception of TV(ANALOG) broadcasting)

Does not the sound go out though the picture has come out when UHF/VHF is received?

TEREMINAL UNIT: Is the IF signal output from pin (17) of TUNER (TU7501)? NO Check the tuner and its peripheral circuits.

Replace as required.

YES Is the SIF signal sent to pins (23) and (24) of IC7504 (IFDEMOD)?

YES Is the SIF signal input from pin (12) of IC7504 to pin (3) of

IC1402(SOUND MULTIPLEX DECODER)?

YES Is audio signal input from pin (24/L-ch), (22/R-ch) of IC1402 to pin (61, 62) of IC1404 (CODEC)?

YES Refer to “No sound output in all modes”.

NO Check FL7501 and its peripheral circuits.

NO Check the line between IC7504 and IC1402.

(Q7504, etc.)

NO Check the line between IC1402 and IC1404.

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No sound (during the reception of TV (DIGITAL) broadcasting)

Does not the sound go out though the picture has come out when DTV is received?

MAIN UNIT: Is DTV_SPDIF audio signal output from pin (T2) of IC8101

(CPU/DECODER) to pin (2) of connector SC1101?

TERMINAL UNIT: YES Is DTV_SPDIF audio signal input from pin (2) of connector SC501 to pin (4) of IC1404 (CODEC)?

Refer to “No sound output in all modes”.

No sound from external input devices (1)

Does not the sound of the audio signal input to EXT1 (SCART1) go out? Does not the sound of the audio signal input to EXT2 (SCART2) go out? TEREMINAL UNIT: <EXT1> Is the audio signal properly sent to pins (6) (IN1_L) and (2)

(IN1_R) of SCART1 (SC502)? <EXT2>

Is the audio signal properly sent to pins (6) (IN2_L) and (2) (IN2_R) of SCART2 (SC503)?

NO Check the line between IC8101 and SC1101, and their periph-

NO Check the line between SC501 and IC1404.

NO Check the setting of an external input device that connects of

eral circuits.

(SC1101/SC501, etc.)

SC502.

SC503.

YES <EXT1> Is the audio signal properly sent to pins (51) (IN1_L) and (52)

(IN1_R) of IC1404 (CODEC)? <EXT2>

Is the audio signal properly sent to pins (53) (IN2_L) and (54) (IN2_R) of IC1404 (CODEC)?

YES Refer to “No sound output in all modes”.

NO Check the line between SC502 and IC1404.

NO Check the line between SC503 and IC1404.

4 – 3

Page 51

No sound from external input devices (2)

Does not the sound of the audio signal input to EXT3 go out?

MINI AV_UNIT: Is audio signal output from pin (5/IN3-L), (4/IN3-R) of input terminal J901 to pin (3), (1) of connector P901?

TERMINAL UNIT: YES Is audio signal input to pin (3/IN3-L), (1/IN3-R) of connector

P501?

YES Is audio signal input to pin (55/IN3-L), (56/IN3-R) of IC1404 (CODEC)?

YES Is CVBS signal detection signal V3_PLUG signal from pin (7) in

input terminal J901 normal?

YES Is V3_PLUG signal input to pin (2) of IC506 (VIDEO SELECTOR)?

LC-32XL8E/S/RU, LC-37XL8E/S/RU

NO Check connection of between from J901 to P901 and the exter-

nal input device.

NO Check the connector (P901/P501).

NO Check the line between P501 and IC1404.

NO Check the connection to J901 and external devices.

NO Everything from V3_PLUG_LINE J901 to pin (2) of IC506 is

checked. (connector P901/P501 and etc.)

YES Refer to “No sound output in all modes”.

No sound from external input devices (3)

Does not the sound of the audio signal input to EXT4/5/6 (HDMI) go out?

Is picture of the signal input from EXT4/5/6 displayed? NO Refer to “Does not the picture of the HDMI signal input to EXT4/

5/6 go out?”.

MAIN UNIT: YES Is the HDMI_SPDIF audio signal output from pin (W12) of

IC3301 (VIDEO PROCESSOR) to pin (4) of connector SC1101?

TERMINAL UNIT: YES Is HDMI_SPDIF audio signal input from pin (4) of connector SC501 to pin (5) of IC1404 (CODEC)?

YES

Refer to “No sound output in all modes”.

NO Check the line between IC3301 and SC1101, and their peripheral

circuits.

NO Check the line between SC501 and IC1404.

(SC1101/SC501, etc.)

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No sound from external input devices (4)

Does not the sound of the audio signal input to EXT6 (Analog) go out?

Whether “Analog” has selected it in the Audio setup of the HDMI option is checked.

Does not the sound of the audio signal input to EXT7 go out?

MAIN UNIT: YES

Is audio signal sent from pin (2/L) and (3/R) of input terminal J1502 to pin (1) and (6) of IC1504 (STEREO_AUDIO_SELECTOR)?

NO NO Check the connection between J1502 and the peripheral circuit,

the external input devices.

Is audio signal output from pin (15/HDMI_PC_L) and pin (11/HDMI_PC_R) of IC1504 to pin (44) and (46) of connector SC1101?

TERMINAL UNIT: YES

Is audio signal (HDMI_PC_L=MAIN_L, HDMI_PC_R=MAIN_R) sent to pins (44) and (46) of SC501?

YES

Is audio signal input to pin (59/MAIN_L) and (60/MAIN_R) of IC1404 (CODEC)?

YES

Refer to “No sound output in all modes”.

No sound from external input devices (5)

YES Is audio signal sent from pin (2/L) and (3/R) of input terminal

NO Check the connector (SC1101/SC501)

NO Check the line between SC501 and IC1404.

MAIN UnIT:

J1501 to pin (3) and (7) of IC1504 (STEREO_AUDIO_SELECTOR)?

Check the connection between J1501 and the peripheral circuit, the external input devices.

NO Check the line between IC1504 and SC1101, and their peripheral circuits.

Does not the sound of the audio signal input to EXT8 go out?

TEREMINAL UNIT: Is audio signal sent from pins (4/IN4-L) and (2/IN4-R) of input terminal J502?

YES Is audio signal sent from pins (57/IN4-L) and (58/IN4-R) of IC1404?

YES Refer to “No sound output in all modes”.

NO Check the connection to J502 and external devices.

NO Check the line between J502 and IC1404.

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The audio signal is not output (1)

The audio signal of UHF/VHF and DTV is not output from EXT1 (SCART).

TEREMINAL UNIT: Is audio signal sent to pins (3/L-ch) and (1/R-ch) of SCART1 (SC502)?

Is S-MUTE-LINE [MAIN_UNIT pin (93) of IC9101 (CPLD)] at H? YES Check the peripheral circuits of IC9101 and S-MUTE_LINE.

NO Is audio signal sent to pins (24/L-ch) and (22/R-ch) of IC1402 (SOUND MULTIPLEX DECODER)?

NO Check IC1402 and its peripheral circuits.

The audio signal is not output (2)

The audio signal of UHF/VHF and DTV is not output from EXT2 (SCART).

YES Check the connection to SCART1 and external devices.

(Q502, Q504, etc.)

YES Check the line between SC502 and IC1402.

(Q508, Q507, IC1407, etc.)

TEREMINAL UNIT: Is audio signal sent to pins (3/L-ch) and (1/R-ch) of SCART2

(SC503)?

NO Is S2-MUTE-LINE [MAIN_UNIT pin (91) of IC9101 (CPLD)] at H? YES Check the peripheral circuits of IC9101 and S2-MUTE_LINE.

NO Is audio signal sent to pins (3/L-ch) and (13/R-ch) of IC7510 (SW)?

NO Is audio signal input to pins (2/L-ch) and (15/R-ch) of IC7510? YES Check IC7510 or peripheral circuits.

NO Is audio signal sent to pins (24/L-ch) and (22/R-ch) of IC1402 (SOUND MULTIPLEX DECODER)?

NO Check IC1402 and its peripheral circuits.

YES Check the connection to SCART2 and external devices.

(Q501, Q503, etc.)

YES Check the line between IC7510 and SC503.

(Q506, Q505, etc.)

(SC_AUD_SEL_LINE, etc.)

YES Check the line between IC7510 and IC1402.

(IC1407, etc.)

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The audio signal is not output (3)

The audio signal of MONITOR is not output from EXT2 (SCART).

TEREMINAL UNIT: Is audio signal sent to pins (3/L-ch) and (1/R-ch) of SCART2 (SC503)?

NO Is S2-MUTE-LINE [MAIN_UNIT pin (91) of IC9101 (CPLD)] at H? YES Check the peripheral circuits of IC9101 and S2-MUTE_LINE.

NO Is audio signal sent to pins (3/L-ch) and (13/R-ch) of IC7510 (SW)?

NO Is audio signal input to pins (1/L-ch) and (12/R-ch) of IC7510? YES Check IC7510 or peripheral circuits.

NO Is audio signal sent to pins (40/L-ch) and (41/R-ch) of IC1404 (CODEC)?

YES Check the connection to SCART2 and external devices.

(Q501, Q503, etc.)

YES Check the line between IC7510 and SC503.

(Q506, Q505, etc.)

(SC_AUD_SEL_LINE, etc.)

YES Check the line between IC7510 and IC1404.

(IC1405, etc.)

NO Check IC1404 and its peripheral circuits.

The audio signal is not output (4)

No audio signal output from AUDIO_OUTPUT terminal.

TEREMINAL UNIT: Is audio signal output to pin (2/L-ch), (4/R-ch) of audio output terminal J503?

NO Do pin (72) of MONITOR_MUTE_LINE

[IC506(VIDEO_SELECTOR)], pin (55) of MUTEA_ALL_LINE[MAIN_UNIT IC2002 (UCON)] become H?

NO Is the audio signal output of pins (40/L-ch) and (41/R-ch) of

IC1404 (CODEC)?

NO Check IC1404 and its peripheral circuits.

YES Check the connection to J503 and external devices.

YES Check the IC506, IC2002, its peripheral circuit and

MONITOR_MUTE_LINE, MUTE-A_ALL_LINE. (Q512, Q511, D551, etc.)

YES Check the line between IC1404 and J503.

(IC1405, Q509, Q510, etc.)

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The audio signal is not output (5)

No audio signal output from DIGITAL_AUDIO_OUTPUT terminal.

TEREMINAL UNIT: Is audio signal output to pin (1) of digital sound output terminal D501?

NO Do pin (92) of SPDIF_MUTE_LINE [MAIN_UNIT IC9101(CPLD)],

pin (55) of MUTE-A_ALL_LINE [MAIN_UNIT IC2002(UCON)] become H?

NO Is an audio signal input from pin (23) of IC1404 (CODEC) to pin

(2) of IC502, and is the logic signal input into pin (1)?

NO Check IC1404 and its peripheral circuits.

The audio signal is not output (6)

No sound from HEADPHONE_OUTPUT terminal.

LC-32XL8E/S/RU, LC-37XL8E/S/RU

YES Check D501 or peripheral circuits.

(B3.3V_LINE, etc.)

YES Check IC9101, IC2002, its circumference circuit and

SPDIF_MUTE_LINE, MUTE-A_ALL_LINE. (Q521, D521, etc.)

YES Check IC502 or peripheral circuits.

MINI AV_UNIT: Is the HP_PLUG signal input into pin (87) of MAIN_UNIT’s IC9101 (CPLD) from pin (6) of a headphone terminal (J802)?

YES Is the audio signal output to pin (2)/L pin (3)/R of headphone terminal J802?

MAIN UNIT: NO Is the audio signal input into pin (5) and (7)of connector P1101

from pin (48)/L, (50)/R of connector SC1101?

TERMINAL UNIT: NO Is audio signal sent to pins (48/L-ch), (50/R-ch) of SC501? YES Check the connector SC501/SC1101.

NO Is audio signal sent to pins (36/L-ch), (35/R-ch) of IC1404

(CODEC)?

NO Check IC1404 or peripheral circuits.

NO Check the line between J802 and IC9101.

(P801/P1101, IC9105, etc.)

YES Check HEAD-PHONE (J802) or peripheral circuits.

YES Check the line between P1101 and J802.

(P801/P1101, etc.)

YES Check pin (86) of MUTE circuit HP_MUTE_LINE [MAIN_UNIT

IC9101 (CPLD) pin (86)] becomes H or not. (Q1402, Q1401, IC9101, etc.)

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No picture on the display (1)

The picture doesn't appear in all modes.

MAIN UNIT: Is LVDS signal output from 1st_channel and 2nd_channel of IC3301(VIDEO PROCESSER) in each mode? TA1_P/M (A14/B14), TB1_P/M (A15/B15), TC1_P/M (A16/B16), TD1_P/M (A18/B18), TE1_P/M (A19/B19), TCLK1_P/M (A17/B17), TA2_P/M

(A20/B20), TB2_P/M (C20/D19), TC2_P/M (D20/E19), TD2_P/M (F20/G19), TE2_P/M (G20/H19), TCLK2_P/M (E20/F19)

Check IC3301 and its peripheral control circuits.

YES

Is the above-mentioned LVDS signal output to connector P2601? NO Check the line between IC3301 and P2601.

YES Is LCD controller's control signal normal? NO Control signals PE HV_MODE, normality is checked.

PANEL_UNIT: YES Similarly, is the LVDS signal input to connector LW of the panel

module?

NO Wire harness (LW) is checked.

(IC2002, IC8101, IC3501, IC3502, etc.)

YES

Check the panel module.

No picture on the display (2)

Does not the picture come out when VHF/UHF is received?

TERMINAL UNIT: Is IF signal output from pin (17) of TUNRE (TU7501)? NO Check whether I2C is normally accessed between named

TU7501 and IC7507 (COFDM).

YES Is IF signal input to pin (1) and (2) of IC7504 (IF-DEMO)? NO Check the FL7502 (VIF_SAW) and their peripheral circuits.

YES Is TUNER_CVBS signal input from pin (17) of IC7504 to pin (9)

of IC506 (VIDEO_SELECTOR)?

YES Is TUNER_CVBS signal (MAIN_Y/V) output from pin (52) of IC506 to pin (68) of connector SC501?

MAIN UNIT: YES Is CVBS signal (MAIN_Y/V) input to pin (68) of connector

SC1101?

NO Check the line between IC7504 and IC506.

(Q7505, IC7508, etc.)

NO Check the line between IC506 and SC501.

NO Check the connector SC501/SC1101.

YES Is CVBS signal (MAIN_Y/V) input to pin (Y4) of IC3301 (VIDEO_PROCESSOR)?

YES Refer to “The picture doesn't appear in all modes.”

NO Check the line between SC1101 and IC3301.

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No picture on the display (3)

Does not the picture come out when DTV is received?

TERMINAL UNIT: Is the voltage of regulation for a TUNER circuit and the power supply terminal of IC7507 (COFDM) supplied?

(Refer to the circuit diagram)

YES Is IF signal output from pin (20), (21) of TUNER (TU7501) to pin (30), (31) of IC7507 (COFDM)?

TERMINAL UNIT: YES Similarly, is communication control carried out between pin

(14),(15) of TU7501, and pin (4), (5)of IC7507?

YES Does X7502 (20.48MHz) oscillate? NO Check X7502 and its peripheral circuits.

YES Is MPEG data (FECLK, FED_D, FESTR_PSYNC, FEVAL_DEN) from IC7507 are output to pin (18)/FECLK, (16)/FED_D and pin

(26)/FESTR_PSYNC, (20)/FEVAL_DEN of a connector (SC501)?

NO Each power supply circuit is checked.

NO Check the tuner, IC7507 and their peripheral circuits.

Replace as required.

NO Is the control signal named IC7507 and IC9101 (CPLD) normal?

(FE_RST_LINE, FEERR_LINE, FEPG0_COMP_LINE, FEPG1_LOCK_LINE, IC7502 etc.)

MAIN UNIT: YES Is the digital signal input into pin (18)/FECLK, (16)/FED_D and pin (26)/FESTR_PSYNC, (20)/FEVAL_DEN of a connector

(SC1101)?

YES Is the digital signal input into pin (AF3)/FECLK, (AF2)/ FED_D, (AF4)/FESTR_PSYNC, (AH3)/FEVAL_DEN of IC8101 (CPU/ DECODER)?

YES Do X8101(24.00MHz)/ X8102(32.768kMHz) oscillate? NO Check the X8101/ X8102 and their peripheral circuits.

YES Are video signal VDB_R [0:9], VDB_G [0:9], VDB_B [0:9], and VBD_CLK/DE/HD/VD are output from IC8101 to IC3301 (VIDEO PROCESSOR)?

YES Refer to “The picture doesn't appear in all modes”.

NO Check the connector SC501/SC1101.

NO Check the line between SC1101 and IC8101.

NO Check IC8101, IC3301 and their peripheral circuits.

(IC8301-IC8304 (DDR2_SDRAM), etc.)

4 – 10

Page 58

LC-32XL8E/S/RU, LC-37XL8E/S/RU

<External input EXT1, EXT2> No picture on the display (4)

Does not the picture of the CVBS signal input to EXT1 go out? Does not the picture of the CVBS signal input to EXT2 go out?

TERMINAL UNIT: <EXT1> Is CVBS signal sent to pin (20) of SCART1 (SC502)?

NO Check the setting of an external input device that connects of

SC502.

<EXT2> Is CVBS signal sent to pin (20) of SCART2 (SC503)?

YES <EXT1> Is CVBS signal sent to pin (65) of IC506?

<EXT2> Is CVBS signal sent to pin (71) of IC506?

YES Is Y/C signal output to pin (68) of connector SC501 from pin (52)

of IC506?

MAIN UNIT: YES Is CVBS signal (MAIN_Y/V) input to pin (68) of connector SC1101?

YES Is CVBS signal (MAIN_Y/V) input to pins (Y4) of IC3301 (VIDEO_PROCESSOR)?

YES Refer to “The picture doesn't appear in all modes”.

NO Check the setting of an external input device that connects of

SC503.

NO Check the line between SC502 and IC506.

NO Check the line between SC503 and IC506.

NO Check the line between IC506 and SC501.

NO Check the connector SC501/SC1101.

NO Check the line between SC1101 and IC3301.

4 – 11

Page 59

<External input EXT1,EXT2> No picture on the display (5)

Does not the picture of the R/G/B video signal input to EXT1 go out? Does not the picture of the R/G/B video signal input to EXT2 go out?

TERMINAL UNIT: <EXT1> Is RGB1 signal sent to pins (15)/R1, (11)/G1 and (7)/B1 of SCART1 (SC502)? <EXT2> Is RGB2 signal sent to pins (15)/R2, (11)/G2 and (7)/B2 of

SCART2 (SC503)?

YES <EXT1> Is RGB1 signal sent to pins (25)/R1, (21)/G1 and (23)/B1 of IC506? <EXT2> Is RGB2 signal sent to pins (31)/R2, (27)/G2 and (29)/B2 of

IC506?

YES Is RGB signal output from pin (54), (56), and (55) of IC506 to pin (66), (62), and (64) of connector (SC501)?

LC-32XL8E/S/RU, LC-37XL8E/S/RU

NO Check the setting of an external input device that connects of

SC502.

NO Check the setting of an external input device that connects of

SC503.

NO Check the line between SC502 and IC506.

NO Check the line between SC503 and IC506.

NO Check the line between IC506 and SC501.

MAIN UNIT: YES Is RGB signal sent to pins (66), (62), (64) of connector(SC1101)? NO Check the connector (SC501/SC1101)

YES Is RGB signal sent to pins (Y8), (V6), (W9) of IC3301 (VIDEO_PROCESSOR)?

YES Refer to “The picture doesn't appear in all modes”.

NO Check the line between SC1101 and IC3301.

(Q1104, Q1105, Q1106, etc.)

4 – 12

Page 60

LC-32XL8E/S/RU, LC-37XL8E/S/RU

<External input EXT1,EXT2> No picture on the display (6)

Does not the picture of the Y/C video signal input to EXT1 go out? Does not the picture of the Y/C video signal input to EXT2 go out?

TERMINAL UNIT: <EXT1> Is Y/C video signal sent to pins (20) and (15) of SCART1 (SC502)? <EXT2> Is Y/C video signal sent to pins (20) and (15) of SCART2

(SC503)?

YES <EXT1> Is Y/C signal sent to pins (67), (69) of IC506?

NO Check the setting of an external input device that connects of

SC502.

NO Check the setting of an external input device that connects of

SC503.

NO Check the line between SC502 and IC506.

<EXT2> Is Y/C signal sent to pins (73), (75) of IC506?

YES Is Y/C signal output to pin (68), (70) of connector SC501 from pin (52/Y), (50/C) of IC506?

MAIN UNIT: YES Is Y/C signal sent to pins (68), (70) of connector (SC1101)? NO Check the connector (SC501/SC1101)

YES Is Y/C signal sent to pins (Y4), (V9) of IC3301(VIDEO_PROCESSOR)?

YES Refer to “The picture doesn't appear in all modes”.

NO Check the line between SC503 and IC506.

NO Check the line between IC506 and SC501.

NO Check the line between SC1101 and IC3301.

4 – 13

Page 61

LC-32XL8E/S/RU, LC-37XL8E/S/RU

<When EXT3 is used for external input> No picture on the display (7)

Does not the picture of the composite video signal input to EXT3 go out?

MINI AV UNIT: Is CVBS signal output from pin (6) in input terminal J901 to pin (5) of connector P901?

TERMINAL UNIT: YES Is the CVBS signal input from pin (5) of connector P501 to pin (3)

of IC506 (VIDEO SELECTOR)?

YES Is the composite video signal detection signal V3_PLUG signal from pin (7) of the input terminal J901 normal?

YES Is the V3_PLUG signal input to pin (2) of IC506? NO Check the between V3_PLUG_LINE J901 and pin (2) of TERMI-

YES Is video signal MAIN_Y/V output into pin (68) of connector SC501 from pin (52) of IC506?

NO Check the line between J901 and P901.

NO Check the line between P501 and IC506.

(Connector P901/P501, etc.)

NO Check J901 or peripheral circuits.

NAL UNIT's IC506. (ConnectorP901/P501,etc)

NO Check the line between IC506 and SC501.

MAIN UNIT: YES Is picture signal MAIN_Y/V input to pin (68) of connector SC1101?

YES Is picture signal MAIN_Y/V input to pin (Y4) of IC3301

(VIDEO_PROCESSOR)?

YES Refer to “The picture doesn't appear in all modes”.

NO Check the connector (SC501/SC1101)

NO Check the line between SC1101 and IC3301.

4 – 14

Page 62

LC-32XL8E/S/RU, LC-37XL8E/S/RU

<When EXT3 is used for external input> No picture on the display (8)

Does not the picture of the Y/C video signal input to EXT3 go out?

MINI AV_UNIT: Is Y/S signal input into pin (13), (11) of connector P901 from pin (3)/Y, (4)/C of J902?

TERMINAL UNIT: YES Is Y/C signal input into pin (5), (7) of IC506 (VIDEO SELECTOR)

from pin (13)/Y, (11)/C of connector P501?

YES Is the Y/C video signal detection function S3_PLUG signal from pin (6) of the input terminal J902 normal?

YES Is the S3_PLUG signal input to pin (42) of IC506? NO Check the between S3_PLUG_LINE J902 and pin (42) of TER-

YES Is Y/C signal output into pin (68), (70) of connector SC501 from pin (52)/Y, (50)/C of IC506?

NO Check the line between J901 and P901.

NO Check the line between P501 and IC506.

(Connector P901/P501, etc.)

NO Check J902 or peripheral circuits.

MINAL UNIT’s IC506. (connector P901/P501, etc.)

NO Check the line between IC506 and SC501.

MAIN UNIT: YES Is Y/C signal input to pin (68), (70) of connector SC1101? NO Check the connector (SC501/SC1101)

YES Is Y/C signal input to pin (Y4), (V9) of IC3301 (VIDEO_PROCESSOR)?

YES Refer to “The picture doesn’t appear in all modes”.

NO Check the line between SC1101 and IC3301.

4 – 15

Page 63

<When EXT4 is used for external input> No picture on the display (9)

Does not the picture of the HDMI signal input to EXT4 go out?

MINI AV_UNIT: Is the HDMI detection function output from pin (19) of the HDMI terminal (SC1503) normal?

YES Is EDID data pin (6)/SCL, pin (5)/SDA of IC1505 (EEPROM)

accessed, and is it read from pin (15), (16) of a HDMI terminal (SC1503)?

YES Is TMDS signal input into pin (59,58)/TMDS3_CLK , (62, 61)/ TMDS3_D0±, (65, 64)/TMDS3_D1±, (68, 67)/TMDS3_D2± of IC1507 from SC1503?

YES Is each signal output from pin (10,11)/TMDS_CLK_P/N, (7,8)/

TMDS_D0_P/N, (4,5)/TMDS_D1_P/N, (1,2)/TMDS_D2_P/N, (77,78)/SDA_SINK/SCL_SINK, (79)/DDC5VOR_A of IC1507?

LC-32XL8E/S/RU, LC-37XL8E/S/RU

NO Check between SC1503 and IC1507 (HDMI_SW) of pin (56).

(IC1508, etc.)

NO Is access possible in the re-writing or exchange of EDID data of

IC1505?

Check the circumference circuit of SC1503, IC1505 and IC1507.

NO Check the line between SC1503 and IC1507.

NO Is the control signal named IC1507 and IC9101 (CPLD) normal?

(HDMI_SW_INT, HDMI_RST, etc.)

YES Is each signal of IC3301 (VIDEO_PROCESSOR) pin (L1, L2)/TMDS_CLK_P/N, (M1, M2)/TMDS_D0_P/N, (N1, N2)/TMDS_D1_P/N, (P1, P2)/

TMDS_D2_P/N, (T11, U11)/SDA_SINK/SCL_SINK, (T10)/DDC5VOR_A input?

YES NO Refer to “The picture doesn't appear in all modes”. Check the line between SC1101 and IC3301.

4 – 16

Page 64

LC-32XL8E/S/RU, LC-37XL8E/S/RU

<When EXT5/6 is used for external input> No picture on the display (10)

Does not the picture of the HDMI signal input to EXT5/6 go out?

MAIN UNIT: EXT5 Is the HDMI detection function output from pin (19) of the HDMI

terminal (SC1501) normal? EXT6

Is the HDMI detection function output from pin (19) of the HDMI terminal (SC1502) normal?

YES EXT5 Is EDID data pin (6)/SCL, pin (5)/SDA of IC1501 (EEPROM) accessed, and is it read from pin (15), (16) of a HDMI terminal

(SC1501) pin(15), (16)?

NO EXT5

Check between SC1501and IC1507(HDMI_SW)of pin(16). (IC1506, etc.)

NO EXT6

Check between SC1502 and IC1507(HDMI_SW) of pin(36). (IC1506, etc.)

YES Check the connection and setup with the external HDMI devices.

NO Is access possible in the re-writing or exchange of EDID data of

IC1501?

Check the circumference circuit of SC1501, IC1501and IC1507.

EXT6 Is EDID data pin (6)/SCL, pin (5)/SDA of IC1502 (EEPROM) accessed, and is it read from pin (15), (16) of a HDMI terminal (SC1502) pin (15), (16)?

YES EXT5 Is TMDS signal input into pin (19, 18)/TMDS2_CLK_P/N, (22,

21)/TMDS2_D0_P/N, (25, 24)/TMDS2_D1_P/N, (28, 27)/ TMDS2_D2_P/N of IC1507 from SC1501?

EXT6 Is TMDS signal input into pin (39, 38)/TMDS1_CLK_P/N, 42, 41)/ TMDS1_D0_P/N, (45, 44)/TMDS1_D1_P/N, (48, 47)/ TMDS1_D2_P/N of IC1507 from SC1502?

YES Is each signal output from pin (10, 11)/TMDS_CLK_P/N, (7, 8)/

TMDS_D0_P/N, (4, 5)/TMDS_D1_P/N, (1, 2)/TMDS_D2_P/N, (77, 78)/SDA_SINK/SCL_SINK, (79)/DDC5VOR_A of IC1507??

YES Is each signal of IC3301 (VIDEO_PROCESSOR) pin (L1, L2)/TMDS_CLK_P/N, (M1, M2)/TMDS_D0_P/N, (N1, N2)/TMDS_D1_P/N, (P1, P2)/

TMDS_D2_P/N, (T11, U11)/SDA_SINK/SCL_SINK, (T10)/DDC5VOR_A input?

YES NO Refer to “The picture doesn't appear in all modes”. Check the line between IC1507 and IC3301.

NO Is access possible in the re-writing or exchange of EDID data of

IC1502?

Check the circumference circuit of SC1502, IC1502and IC1507.

NO Check the line between SC1501 and IC1507.

NO Check the line between SC1502 and IC1507.

NO Is the control signal of IC1507 and IC9101 (CPLD) normal?

(HDMI_SW_INT, HDMI_RST, etc.)

4 – 17

Page 65

LC-32XL8E/S/RU, LC-37XL8E/S/RU

<When EXT7 is used for external input> No picture on the display (11)

Does not the picture of the DVI(ANALOG) video signal input to EXT7(15pin-D-SUB terminal) go out?

MAIN_UNIT: Are the video signal and the synchronized signal input from pin (1, 2, 3)/(R, G, B), (13 and 14)/(V, H) of input terminal D-SUB

(SC1504)?

NO Are the video signal and the synchronized signal input from pin (U8, Y7, W10)/ (R, G, B), pin (V10, U10)/(H, V) of IC3301 (VIDEO PROCESSOR)?

NO Refer to “The picture doesn't appear in all modes”.

<When EXT8 is used for external input> No picture on the display (12)

Does not the picture of the component video signal input to EXT8 go out?

TERMINAL UNIT: Is COMPONENT video signal input into pin (3)/Y, (5)/Pb, (7)/Pr of the input terminal J508?

YES Check the connection and setup between SC1504 and its cir-

cumference circuit as well as the external HDMI devices. (IC1503, etc.)

YES Check the line between SC1504 and IC3301.

NO Check the connection of J508 and the external input device.

YES Is COMPONENT video signal input into pin (33)/Y, (35)/Pb, (37)/ Pr of IC506 (VIDEO SELECTOR)?

YES Is detection signal COMP1_PLUG of the COMPONENT video

signal from pin (2) of the input terminal J508 normal?

YES Is COMPONENT signal output into pin (56), (58), (60) of the connector SC501 from pin (60)/Y, (59)/PB, (58)/PR of IC506?

MAIN UNIT: YES Is COMPONENT signal output from pin (56), (58), (60) of the

connector (SC1101)?

YES Is COMPONENT signal input into pin (W6), (Y9), (W8) of IC3301 (VIDEO_PROCESSOR)?

YES Refer to “The picture doesn't appear in all modes”.

NO Check the line between J508 and IC506.

NO Check from the input terminal J508 to pin (38) of IC506.

NO Check the line between IC506 and SC501.

(Q516, Q518, Q520, etc.)

NO Check the connector (SC501/SC1101)

NO Check the line between SC1101 and IC3301.

4 – 18

Page 66

LC-32XL8E/S/RU, LC-37XL8E/S/RU

<During external connection> No picture on the monitor (1)

No picture appears on EXT1 - connected monitor during the tuner (U/V) reception.

TERMINAL UNIT: Is CVBS signal output into pin (19) of SC502 (SCART1) from pin (2) of IC501 (SW)?

Is TUNRE_CVBS signal sent to pin (6) of IC503 (SW)? YES Check the IC501 (SW), IC503 (SW) and their peripheral circuits.

Is TUNRE_CVBS signal output from pin (17) of IC7504 (IFDEMOD)?

Is IF signal output from pin (17) of TUNRE (TU7501)? YES Check the IC7504/FL7502 (VIF_SAW) and its peripheral circuits.

NO Check whether I2C is normally accessed between TU7501 and IC7504 (IF-DEMOD).

YES Check the setting of an external input device that connects of

SC502.

YES Check the line between IC7504 and IC503.

(Q7505, IC7508, etc.)

4 – 19

Page 67

LC-32XL8E/S/RU, LC-37XL8E/S/RU

<During external connection> No picture on the monitor (2)

SCART1:

No picture appears on EXT1 - connected monitor during the tuner (DTV) reception.

TERMINAL UNIT: Is CVBS signal output into pin (19) of SC502 (SCART1) from pin (2) of IC501 (SW)?

NO Is DTV_CVBS signal sent to pin (4) of IC503 (SW)? YES Check the IC501 (SW), IC503 (SW) and their peripheral circuits.

MAIN UNIT: NO Is DTV_CVBS signal output to pin (54) of connector (SC1101)? YES Check the line between SC1101 (MAIN_UNIT)/ SC501 (TERMI-

NO Is DTM_CVBS signal output to pin (AD4) of IC8101? YES Check the line between IC8101 and SC1101.

NO Check the IC8101 and its peripheral circuits.

YES Check the setting of an external input device that connects of

SC502.

NAL UNIT) and IC503.

<During external connection> No picture on the monitor (3)

SCART2:

No picture from EXT1 appears on EXT2-connected monitor.

NOTE: Normally, if the screen during display is sent to EXT2, no picture is sent to EXT2.

TERMINAL UNIT: Is CVBS signal input from pin (51) of IC506 to pin (19) of

SCART2 (SC503)?

NO Is CVBS signal sent to pin (65) of IC506 (VIDEO_SELECTOR)? YES Check the IC506 and its peripheral circuits.

NO Is CVBS signal sent to pin (20) of SCART1 (SC502)? YES Check the line between S502 and IC506.

NO Check the setting of an external input device that connects of SC502.

YES Check the setting of an external input device that connects of

SC503.

4 – 20

Page 68

LC-32XL8E/S/RU, LC-37XL8E/S/RU

<During external connection> No picture on the monitor (4)

SCART2: No picture from EXT3 appears on EXT2- connected monitor.

TERMINAL UNIT: Is CVBS signal input from pin (51) of IC506 to pin (19) of SCART2 (SC503)?

NO Is CVBS signal input from pin (5) of the connector P501 to pin (3)

of IC506 (VIDEO SELECTOR)?

MINI AV UNIT: NO Is CVBS signal input from pin (6) of the input terminal J901 to pin (5) of the connector (P501)?

NO Is V3_PLUG signal of the CVBS signal detection function from

pin (7) of the input terminal J901 normal?

NO Check between V3_PLUG_LINE J901 and pin (2) of IC506 in the TERMINAL UNIT. (Connector P901/P501, etc.)

YES Check the setting of an external input device that connects of

SC503.

YES Check the IC506 and its peripheral circuits.

YES Check the connector (P501/P901)

YES Check the setting of an external input device that connects of

J901.

LED flashing atterns for error notification

250ms

1) Power LED

Error type Power LED operation (1 cycle) Description

Lamp failure H: On

Flashes once: Fast L: Off

Power failure H: On Refer to "Power failure details".

Flashes twice L: Off

Communication failure with main CPU

Flashes 3 times L: Off →Check main CPU (IC8101).

Monitor temp. failure H: On

Flashes 5 times L: Off

H: On Refer to "Communication failure details".

1sec

ERR_PNL(IC2002_43pin): Abnormal L. Confirmed after 5 consecutive detections at 1 second intervals. (Detected only when the backlight is light is on).

Note that after five detection counts, the lamp cannot be activated except in the monitoring process. (For the first time doesn't make an error only by inverter reset OFF)

Accumulated counts are cleared to 0 when the corresponding setting in the process adjustment(2/33) is made or when the power is turned on with [CH_DOWN] and [VOL_UP] on the unit down or after continuous illumination for 3 minutes.

Communication line failure or main CPU(IC8101) communication failure.

If the panel temperature is 60°C or more for 15 seconds or more in a row, CAUTION appears. If the panel temperature is 60°C or more for 15 seconds or more in a row, error standby is activated. (MONITOR MAX TEMP of process adjustment(29/33): Change of temperature failure AD value): Thermistor

4 – 21

Page 69

LC-32XL8E/S/RU, LC-37XL8E/S/RU

2) Power failure details(Power LED flashes twice and OPC LED flashes)

Error type OPC LED operation (1 cycle) Description

PS_ON H: On

12V failure

Flashes once L: Off

PS_ON H: On

10V failure

Flashes 3 times L: Off D_POW H: On DET_D3V3(IC2002_59pin): Abnormal (L). D3.3V is not applied.

Digital 3.3V failure

Flashes 4 times L: Off

PANEL_POW H: On

Panel 12V failure

Flashes 5 times L: Off Main failure H: On Main microprocessor detection error

Flashes 7 times L: Off

AC_DET(IC2002_16pin): Abnormal (L). Main converter 12V is not applied. If error is detected during operation, the power is turned on again by interrupt handling.

DET_10V(IC2002_57pin): Abnormal (L). Main power UR13V is not applied. If error is detected during start-up or operation, the power is turned on again by polling.

If error is detected during start-up or operation, the power is turned on again by polling.

DET_PNL12V(IC2002_58pin): Abnormal (L). Panel power is not applied.

If error is detected during start-up or operation, the power is turned on again by polling.

The details are displayed on page 1 of process adjustment for the main microprocessor (IC8101).

3) Communication failure details(Power LED flashes 3 times and OPC LED flashes)

Error type OPC LED operation (1 cycle) Description

Initial communication reception failure

Flashes once L: Off

Start-up confirmation reception failure

Flashes twice L: Off

Regular communication failure

Flashes 3 times L: Off

Restart failure H: On

Flashes 4 times L: Off

H: On Initial communication from the main CPU (IC8101) is not received.

→Communication line failure or main CPU (IC8101) start-up failure

H: On

Start-up reason confirmation from the main CP(IC8101) is not received. →Main CPU (IC8101) start-up failure or monitor microprocessor (IC2002) reception failure

Regular communication that is performed at 1 second intervals in the normal operation is interrupted.

→Main CPU (IC8101) operation failure or monitor microprocessor (IC2002) reception failure

When restarted by a software with the standby off/on, restart completion notification is not received. →Main CPU (IC8101)restart failure to monitor microprocessor (IC2002) reception failure

4 – 22

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

— MEMO —

4 – 23

Page 71

LC32XL8E

CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM

[1] SYSTEM BLOCK DIAGRAM

SYSTEM BLOCK DIAGRAM

LC-32XL8E/S/RU, LC-37XL8E/S/RU

Service Manual

1097654 8

1311 191816151412 17

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LC-32XL8E/S/RU, LC-37XL8E/S/RU

[2] TERMINAL BLOCK DIAGRAM

TERMINAL BLOCK DIAGRAM

1097654

1311 191816151412 17

6 – 2

Page 73

[3] MAIN BLOCK DIAGRAM

MAIN BLOCK DIAGRAM

LC-32XL8E/S/RU, LC-37XL8E/S/RU

1097654

1311 191816151412 17

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Page 74

LC-32XL8E/S/RU, LC-37XL8E/S/RU

[4] POWER BLOCK DIAGRAM

POWER BLOCK DIAGRAM

1097654

1311 191816151412 17

6 – 4

Page 75

[5] WIRING DIAGRAM (LC-32XL8E/S/RU)

WIRING DIAGRAM (LC-32XL8E/S/RU)

LC-32XL8E/S/RU, LC-37XL8E/S/RU

1097654

1311 191816151412 17

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Page 76

LC-32XL8E/S/RU, LC-37XL8E/S/RU

[6] WIRING DIAGRAM (LC-37XL8E/S/RU)

WIRING DIAGRAM (LC-37XL8E/S/RU)

1097654

1311 191816151412 17

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Page 77

LC32XL8E

CHAPTER 7. PRINTED WIRING BOARD

[1] MAIN UNIT PRINTED WIRING BOARD

MAIN Unit (Side-A)

LC-32XL8E/S/RU, LC-37XL8E/S/RU

Service Manual

1097654 8

1311 191816151412 17

7 – 1

Page 78

LC-32XL8E/S/RU, LC-37XL8E/S/RU

MAIN Unit (Chip Side-A)

R1106 C1106 C1107

R1128

C1129

L1105

C1121 R1118

R1122

Q1105

R1111 C1108 C1110

L1102

Q1108

R1126

SC1101

R1109

C1118

R1132

C1122 R1119

R1123

R1137 R1105 C1105 R1103R1104

C1130

L1106

Q1106

C1102C1103

L1101

Q1107

R1125

R1108

C1109

C1119

R1133 R1134

R1116

C1120 R1117

R1121

IC1503

C1123

L1104

Q1104

R2432 R2415

L1103

C1117

C1112

C1128

C2409

Q2404

D1519

R2434 R2431

C2405 C2406 C2407 C2408

FB2403FB2404

FB2402

LUG1104

D1508

D1507

D1506

D1504

R1504 C1502

R2413 R2414 R2430

IC2404

R2436

IC2405

R2409

R2410

R2408

D2403

D1512

R1513

R2416

Q2403

D1501

IC2403

D2401 D2402

FB1502

FB1504

FB1501

FB1503

R1562 R1563

R1503 R1509 R1510

Q2406

R2433

Q2405

R2417

C2403

C2404

C9618

C9662

R2405 C2410 R2435

C1505

Q1801

R1802

R1804

Q1804

FB1505

LUG4

Q2407

R1532

R1526

C9611

C9657

C9625

C1511

R1533

C9607

C9606

IC9601

IC9603

IC9604

LUG1103

D2405

C1512

R9622

R9652

C9609

IC9602

C9608

C9656

C9622

D1528

R9627

R9625

D2404

R9617

R1538 R1544

C1506

FB1508

C1516 R1540

C1524

D1527

VA1508 VA1507

VA1506 VA1505

VA1504 VA1503

VA1502 VA1501

FL1501

FL1502

FL1503

L9602

FB1506

R1528 R1534

IC1504

L9601

L9603

L9604

L1509

L1508

L1507

L1506

R1549

R1548

C1503

C1513

D1526

C1510 R1529

P4501

R1553

R1552

Q1506

D1525

C1515

SC1501

C1530

C1523

C1520

R1565

IC1501

C9628

C9673

C9672

LUG3

C1521

R1543

C1514

R1517

Q1502

R1516

Q1517

R1541

R1536

FB1507

C1501

D1503

C1509

C1507

D1513

P9101

C9111 R9161

R9178 R9176 R9174 R9179 C9109 R9160 R9154

R9147 R9145 R9132 R9130 R9136 R9133 R9129 R9140 R9144

C4501

FB9702

C8715

C9108

VA1524 VA1523

VA1522 VA1521

VA1520 VA1519

VA1518 VA1517

VA1516 VA1515

VA1514 VA1513

VA1512 VA1511

VA1510 VA1509

C8707

FB8701

C8705

R8710

L1504

L1503

L1502

L1501

L1513

L1512

L1511

L1510

IC4501

Q1507

P4502

R9181

Q1501

R9183

R1556

IC1505

IC1502

X8701

IC8702

R1514

C1529

Q1503

R9184

C4503

C4502

SC1503

SC1502

C9113

IC9101

C9107

C1528

R9124

C1518

R1547

R1546

C1504

R1527

R1523

C8704

R9166

X4501

R1551

Q1508

R1555

D1516

R8729 R8714 C8706

R8723

R9139

R9149

R9113

R1521

R9120

R9114

Q1516

C1533

Q1505

D1515

C1508

D1502

R9116

C1527

R8705

R9141

R8704

C9105

R8701

Q8702

D8701

Q8701

R9115 R9152 R9153

R8703

R9138

R9111

C9106

C9104

C1540

LUG1107

P3301

R9336

R9337

IC1507

P1101

FB1515

C1538

R3310 R3301

P9601

R1607

R9331

R9332

SC9301

Q1509

R1542

Q1510

R1559

FB9603

FB3304

FB3306

L3301

L3302

L3303

L3304

L3305

R1576

R1575

R1577

C3374

R8706

R9304

P1103

P2401

C3323 C3330

P1102

C3314

X3301

R3314

R3315

C3313

R9316

R9327

X8102

C8233 R8169

R8170 R8171

R8147

R8167

R2614

FL2611

X8101

R8142

R8143

R9314

R9326

R9335

R8101 R8148

C8120

FB8105

FL2607

LUG1105

R9312

R9318

R9320

R9325

R9328

R9329

R9323

R8116

C8104C8105

R8117

C8106C8107

R8154 R8175

R8118

R8172 R8173

R8105 R2421

D8101

D8102

R8138 R8144 R8139 R8145

R2601

R2610

R9322

R9330

R9324

R3311

R2608

FL2605

FB8112

C8121

C8117 C8181

IC3301

R3341

R2606

C8151

R2602

FB8110

C8140

C8136 C8180

R3512

FL2601

C3378

R3506

R2604

FB8107

C8139

C8135 C8179

R2616

R8119

R3503

L2612

FB8109

C8149

C8146 C8176

R3501 R3502

L2605

C8111

L2610

C8110

FB8102

FB8101

C8109

R8120

C3357

L2604

P2601

C8108

R8149

R8123 R8124

L2603

L2611

L2609

R3354

L2608

R9306

L2602

IC8101

L2607

C8150

R9307

R8112

R8111

L2601

R3347

L2606

R8152

R3348

R3351

R8153

R3352

C3377

R3342

P8102

R8146

R8160

R3344

LUG3501

R3345

FB2006

R9667

R3558 R3576

R3575 R3546

R3528 R3572

R3571 R3516

L9606

R3554

R3555

R3542

R3543

R3524

R3521

R3509

R3578

FB2007

C8397

FB2008

R8332

R8310 R8311

R8333

FB2009

P2003

R3557

R3540

R3525

R3507

FB2010

C9675

FB2011

R3577

R3560

R3574

R3544

R3530

R3573

IC3501IC3502

R3514

R3570

C9642

R3556

R3541

R3526

R3527

R9607

R3532

R3539

C3518

IC9605

C3549 C3548

P2005

C8380

C8379

C8346

C8345

C3550

C3551

FB3501

C9649

FB4402

LUG1106

C3539

C9674

R4425

R4430

C4421

IC8304

R8303

IC8303

R8301

IC8301IC8302

R4429

Q4401

R8304

R8302

R4446

C8302

C8301

R2622

FL2617

R4469

R4403

R4441 R4447

R2617

C2608

R4471

R4404

C2401

R9308

D2601

R4440 R4420

R4418

FL2616

R4476 R4477

R4402 R4434 C4414

IC4407

C4409

R2603

R2613

C2607

R4467

R4411

R4478 R4479

R4401 R4433 C4413

IC2401

IC2402

R2407

IC2602

C2609

R4422

R4439 R4419

R4483

C4417

R4423

C2402

R4417

R4482

R2041

R2621

R2072

C9664

C4410

SC4602

R2036

IC9606

R4464

C4420

R2037 R2055 R2054 R2082

D2003

C9660

R4413

R4465

R2051

R2012

R4472

R1817

R2009

R4428

R4473

R4407

R2611

R2006

R2076

IC8703

R2618

P2602P2603

R2044

IC2011

L9605

R4457

FL2001

R2057

FL2613

R4480

R4456

R2034

R2063

R4475

R4474

R4481

R4461

R4427

R2048

IC2002

R2062

C2001

R2619

R4460

C2011

R2075

C8708

C8714

R8718

C8711

C2604

R2028

R2077

C2605

C4406

IC4406

R4458

R4459

R2027

R2620

R4408

R4409

R4406

R4421

X2001

R2011

IC2601

C2009

LUG1101

R4435

C9671

IC4403

R2045

IC4401

IC4402

IC4404IC4405

R2069

C2019

R2031 R2022

R2020 R2002 R2004

C2005 C2004

FB2005

FB2004

FB2003

R2008 C2030

TH2001

R2096 R2095

C4405

C4404

C4408

P2002

Q2001

P2001

R2019

P2004

LUG1102

1097654

1311 191816151412 17

7 – 2

Page 79

MAIN Unit (Side-B)

LC-32XL8E/S/RU, LC-37XL8E/S/RU

1097654

1311 191816151412 17

7 – 3

Page 80

LC-32XL8E/S/RU, LC-37XL8E/S/RU

MAIN Unit (Chip Side-B)

R4452

R2010

R2052 C2021

R2014 R2021

C2023

R2007

R2093 R2094

R2033

IC2006

D9608

R9645

R4453

C2002

IC2001

C2013

R2070

R2067 R2032

R2005

C2003

R2018

R2053

R9644

R4455

R2030 C2008

R2066 R2043 R2013

R2092 R2091

D9609

R2629

R2023

R2068

R9632

R2071

R2050

R2024

R2015

R2088 R2089

R9634

R2080

IC2010

R2026

R2038

C9644

C9645

Q2004

R2086

R2029

C2020

C2017

Q9608

C9646

R4436

R2079

C2018

C2033

C9669

R4431

R2081

C2034

R2035

C2012

IC8704

R4432 R4438

R4424

R2001

R2025

R2049

R2039

C2029 C2028 C2010

R4484 R4485

R4462 R4463

R4405

R2047

R2046

C2016

C2015 C2014 R2040

R2042

R2074

R2061

R2003

Q1808

IC2004

C8709

R8713 C8713 C8712

Q9609

C4416 C4415

C2006 C2007

R2056

R1820

R9663

C9668

R9664

R1819

C2027

R9642

C9659

FB4403

IC2009

C9654

R9665

IC2008

Q1809

R9662

R2016

C9651

C9665

C2026

R9640

R9637

C9652 R9638

C8304

C9655 R9641

R9636

R2403

R2406

R2401

C9640

R8305

Q2402

C8303

C8332

R4468

R4466

Q2401

C8372

C8338

R2404

C8318

R4470

R2402

IC9301

C8389

C8395

C8360

C8355

C9301

R4437

R4487

Q2601

C8322

C8374

R8306

C8359

C8320

C8340

R4426

C8394

C8373

C8321

C8339

C8319

IC4408

R4486

C8393

C8392

C8378

C8371

C8388

C8365

C8337

C8354

C8331

R4454

C8370

C8387

C8376

C8364

C8358

C8344

C8336

C8353

C8342

C8330

C8384

C8382

C8350

C8348

C4411

C8391

C8369

C8386

C8363

C8357

C8335

C8352

R2612

C2606

C8383

C8377

C8381

C8375

C8349

C8343

C8347

C8341

C8390

C8368

C8385

C8362

C8356

C8334

C8351

C8328C8329

FL2615

C8317

C8367

C8316

C8361

C8333

C8314 C8315

C8327

LUG3502

R2017

FB2013

Q2002

FB2012

C3537

C3538

C3547

C3531

C3543

C3513

C3533

C3546

C3515

C3542

C3501

C3520

C3525

C3503

C3507

C3508

R8308

C3521

C3534

C3532

C3544

C3504

C3516

C3514

C3540

C3522

C3526

C3535

C3545

C3506

C3505

C3517

C3541

R8307

R8309

C3523

C3524

C3502

C8225

R8114

R8113

C8169

FB2001

FB2002

C8168

C8167

R8165

C8103

C8219

C8102

C8101

R3343

R8166

C8184

C8224 C8218 C8223 C8217 C8222 C8216 C8221 C8215

C8220 C8193 C8192 C8191 C8190 C8189

C8188

R8115

C8187

R8164

C8175

C8186

R3353

C8172C8366 C8171 C8170 C8166

C8212 C8211 C8210 C8209

C8204

C8208 C8207 C8206 C8205

R8163

C8185

R3349

R8162

C8214

R3350

R8161

C8213

R9302

C8230

C8226

C8164

R3346

R9301

C8227

C8163

R8130

R8126

C8228

C8199

C8162

FB3309

FB3307

C8229

C8161

R8104

C8203

C8198

C8160

R8127

C3340

C3341

C3345

C3346

R2625

R2624

R8129

C8202

C8194

C8197

C8159

C3399

C8201 C8200

C8196 C8195

C8158

R8122

R3579

R3511

R3513

R8174

D8104

C8235 C8234

R8158

R3355

C8152

C8174

C8157

R8121

C3353

C3365

R3316

C3342

C3343

C3347

C3348

FB8106

C8165

FB8114

C8122

R8106 R8107

D8103

C8153 C8154

C8156

R8159

R8157

LUG3503

C3306

R3302

C3321 R3303 C3354

C3358 C3359 C3360 C3361 C3362

R2627 R2626

C8155

R3328

R3327

FB8111

FB8108

C8130

C8125 C8178

C8173

C8143

C8118

FB8119

R3320

R3321

R3322

C3344

R3304

FB3308

FB3310

C8126

C8131

C8145 C8177

R8156

FB8121

C8183

R8108

R8109

C8138

C3363

C3366

R3319

R3305

C8148

C8236 C8237

R8133

C8116

C3376

R2615

R8102

C8124

C8134

C3364

C3371

C8182

R8155

R8151

R8103

C8142

C8137

C8129

C3373

C3375

C3370

R2605

FL2602

C8113

C8141

C8144

C3372

C3369

FB8118

FB8120

R9321

C8112

C8115

R8128 R8150

FB8115

C8119

C8128

R8730

C8147

FB3311

C3384

C3382 C3383

C3396

C3395

C3356

C3355

R2607

FL2604

R9319

C8114

C8127

C8123

FB8116

FB3305

FB3312

C3385

L3306

C3398

C3390

C3352

R3318

FL2606

C8132

C8232

C3397

C3367 C3368

C3351

R3317

R2609

R9317

R9311

FB8103FB8104

FB8117

C8133

FB3303

C3393

C3332 C3334

FB3315

C3349

C3350

R3337 R3325

FL2614

R9313

FB8113

R8132 R8131

R8110

R8141

C3325

C3329

C3322

C3328

C3394

C3338

R2628

R9315

R8140

R8135 R8137 R8136

C3391

R3338

C3336

FL2608

R8125

C3392

C3307 C3308

C3311

C3386

C3387

C3312

R2623

R2429

C3324

R3339 C3309

C3310

R8728

R4410

C3388

C3389

C3315

C8701

C4407

IC4409

FB3313

FB3314

C3327

R3340 C3379 C3301 R3323 C3316 C3318 C3381 C3320 C3319

C3380 C3302 R3334 R3331 R3329 R3330 R3309 R3336 R3333 R3332 R3335

R2426

R9303

R9333

R9334

R9305

R2420

C1816

R2428

R2419

C3317

D3301

C3305 C3303

C1134

R2418

C3326

C3331

C3333

C3335

C3337

C3339

D3303

IC1805

R2422

C1135

R2425

R2427

FB1509

FB1510

R1606 R1570

C1608

D1520

C1813

C1137

C1136

R9310

R1508 R1512

C1801

FB1102

FB1101

C1613 C1614 R1558

C1616 C1615

R1539

R3306

C3304

R3308

R1801

IC8701

C1596

R1524

R1507

D3302

FB1103

C1599

R1571

R1609

Q1803

C1597

Q1504

Q1519

C1802

C1138

FB1104

R1604

R1605

R1601

R1595

C1592

R3307

Q1802

C1139

C1587

R1622

C1140

C1586

R1594

C1589

FB1105

C1579

R1568C1591

IC1506

D1802

C1578

C1551

R1593

C1583

C1141

C1517

C1582

C1534

C1544 C1543

C1545 C1546 R1580 C1547 C1548 C1532 C1531

R1545

R3312

C8702

C8703

R1564

C1535

R1166

D9101

R1579

R1566

IC1508

C9110

R9162

R9103

C9116

D1509

R1519

R9142

R2423 R2424

R9167

C9112

R9150

R9109

R9117

R9119

IC9104

R9108

R9110

Q9101

R1520

R9112

R9168

Q9102

R1537

R9106

R9170

R9169

R9102

R9156

C1519

R1135

R8712

C8717

R9171

R9104

C9101

R1136

R8702

C9114

D1517

R1531

R8722

R9164

R9121

R9188

R9187

C9115

R1515

C8718

Q8703

R9122

C9117

R1530

R1505

R9123

IC9106

IC9105

D1505

R1557

R9157

R9125

R9126

R9158

R9182

R9159

R4508 R4512

R4511 R4507

R9151

R9163 R9186

R9185

R9180

R9137

R4514

R9101

R9172

R9118

R9105

R9127

R4513

R9165 R9177 R9175 R9173 R9107 R9155

R9148 R9146 R9143 R9131

R9135 R9134 R9128

R4509

LUG1

LUG2

R9646

R9643

D9612

R9611

C9632

C9629

D9607

R9635

R1522

D9610

R1511

D9611

D9601

R9613

C9635

R9612

R1502

R1518

R9608

D9602

R9601R9602

C9634

C9638

C9647

R9614

R9615

C9639

C9636

C9637

R1501

D1518

R1535

R4518

R4515

C9621

C9623

C9624

D9606

R9639

D9604

D9605

Q9601

Q9607

C9631

Q9604

Q9610

C9666

R9633

Q9605

Q9606

C9633

R1550

R1554

C1525

D1530

C1522

R1560 R1561

C9619

R9606

C9620

R9657

C9663

R9626

C9630

D1531

R9604

R9628

R9653

R9660

R9629

R9631

R9609

C9604

C9610

C9650

C9658

C9615

C9626

C1526

Q9603

R9605

R9619

R9654

R9661

R9624

R9630

LUG5

R1803

C9602

C9617

C9643

C9661

C9613

C9627

D1801

C1803

R9610

R9655

C9603 R9603

R9658

R9648

R9623

R9618

C9614 R9621

C1804

R9656

R9647

C9648 R9649

R9620

C9605 R9616

C9653 R9659

C9616 R9666

C9601

C9641

C9612

C1115

C1127

R1152 R1156

Q1120

R1162

Q1115

R1112

Q1103

R1110

C1125

Q1117

Q1118

R1102

C1131

R1153

C1104

R1107

C1124

R1154

R1113

Q1109

R1127

Q1116

R1155

R1157

R1115

R1120

C1132

C1126

R1160

R1161

Q1122

C1113

R1151

R1159

R1124

R1164 R1101

Q1121

R1114

Q1110

R1131

C1133

R1158

R1129

D1101

R1142

C1116

D1102

Q1119

R1165

R1130

1097654

1311 191816151412 17

7 – 4

Page 81

[2] TERMINAL UNIT PRINTED WIRING BOARD

TERMINAL Unit (Side-A)

LC-32XL8E/S/RU, LC-37XL8E/S/RU

1097654

1311 191816151412 17

7 – 5

Page 82

LC-32XL8E/S/RU, LC-37XL8E/S/RU

TERMINAL Unit (Chip Side-A)

R438

C433

R614

R570

C426

D408

R606 R608

R600 R604

R596 R598

R591 R589

R656 R657

C615

C610

R613

C1468

R1478

C428

R609

D535

D529

R1476

C1466

IC406

R529

IC7510

R1479

D548

D544

D542

R592

R586 R587

R572

R571

R1477

C1460

C431

C622

C621

C620

C1467

R1463

R1460

R1467

D536D537

IC1405

R1465

R1461

R1473

R1466

D534

C1462

C1459

R1469

R1472

R1468

C1458

C1420

C1461

R1470

R620

R626

R1427

R1436

C607

C605

R627

Q509

X1402

R1428

R1434

FB503

C590

C1419

R1446

IC1401

R630

C1432

R1450

C606

C591

R1410

IC405

FB504

R632

Q510

FB1403

C1418

R1430

IC1403

C1406

R1404

R1401

C502

R631

C612

R633

R1407

C525

L501

C614

C503

C518

R503

R634

C1416

C1415

IC502

C613

C517

R1435

R1443

C432

C429

D521

Q521

C501

R636

R635

R1418

FB1402

C1426

P1401

D551

Q512

Q511

R1433

C1435

C430

D411

R534

FB505

FL506

R521

C1433

D409

R432

FL504

R512

C527

C524

C512

D511

FB1401

C1434

D410

R433

D412

FB404

R573

FL511

C570

FB501 FB502

R581

C582

C583

R578

R579

C581

C526

C519

FL505

D517

R523

FL507

R513

R522

D505

R517

R525

C530

C584

R531

D519

C511

FB507

R511

FL501 FL502 FL503

C529

C504

R508

D502

R526

R524

FL508 FL509

R527

C513

D506

C1304

R1310

C1303

R1301

Q1302

Q1303

C1301

R1303

R1307

C1305

C1302

D1302

D1301

Q1301

R1302

R1309

R1308

R1305

R576

C508

R501

R519

R1304

R1322

R532

C521

R583

C585

D510

R1306

R1313

C1313

C1308

C1306

C1311

C1315

C1312

C1309

C1307

R1311

FL512

C573

R535

D503

IC404

R577

C576

R584

R585

C586

D522

C538

D515

R515

R536

R507

R514

R509

C509

C505

D513

C568

C520

R505

FB506

FL510

R530

R520

C522

D507

C514 C515

L1303

C1329

IC1301

R1312

C1316

L1304

C423 C424

FL513

C549

D520

R549

FB508

FB514

D504

C506

R553

R559

C560

D508

C1318 C1319

R551

R516

FB516

R533

D1305

C1317

C1330

D1304

R430 R431

C563

R510

C551

R518

R410

R423

R420

C408

C420

C417

C553

C405

R409

R408

C510

R538

C523

C422

R415

R426

C402

R402

R537

FB513

C552

FB517

FB510

L1306

R1316

R1320

R1327

C1328

L1305

C550

R550

FB515

C542

R554

C544

R1317

R1318

R1328

C414

IC402

R539

C569

R542

R1319

C407

C554

C1320

R1325

C1321

C434

R560

R1321

C1327

R552

C562

C546

C561

R1326

L402

FB511

FB512

C548

C1326

D1306

D1303

FB402

D405

D402

R544

R546

FB405

C411

Q402

C1323

R1332

C1324

C541

C543

FB406

R540

R541

R1333

R1324

C1322

C545

C547

R1323

P401

C1314

C1325

C1310

Q505 Q506

D524

R563

C565

Q501

C556

R555

R547

R543

Q507

D525

R564

C567

Q502

R556

C558

R548

R545

R1330

R1329

R1331

P1301

LUG504

D523

R557

Q503

C555

Q508

D526

Q504

C557

C564

R561

R558

C566

R562

LUG502 LUG503

SC501

P7501

R7567

C7513

R7566

C7531

C7518

C7552

C7526

C7522

C7544

Q7502

R7510

R7505

C7574

C7520

IC7503

C7521

IC7501

R7501

C7511

R7552

C7536

L7509

R7549

IC7508

R7564

C7576

L7506

L7510

C7580

R7527

C7503

FB7501

C7577

C7572

R7550

C7575

R7534

IC7506

R7551

Q7507

L7502

R7548

C7515

R7547

C7514

LUG501

C1451

R1438

C1405

R1417

IC1402

C1407

R1411

X1401

C1450

R1413

R1414

R1412

R1416

R1402

R1409

C1410

R1415

C1402

C1469

R1406

R1405

C1403

C1401

C1408

R7502

C7573

R7525

C1404

C1412

C1409

C1411

IC7502

IC7507

C7560

C7502

D7501

C7517

IC1406

X7502

C7554

Q7501

R7504

C401

FB401

C7548

R7509

R1403

C1413

C7557

C7528

R7523

C7525

R7522

R7518

R7519

Q1401

R1408

C404

C403

R7570

R7569

C7561

C7508

R7541

L7503

IC403

FB7502

C7553

R7537

Q7505

C7563

C7543

C7529

R1464

C7540

L7504

R7508

R7516

C7545

C7512

L7505

R7535

C7527

Q1402

R1442

C7568

C7556

L7511

C7567

C7565

C625

C7537

FL7501

R1462

C1456

C7539

C7566

C7564

R7529

C7535

R7526

C7532

D7505

D7504

D7503

C1437

R7517

C1431

C626

FB524

P501

C7538

C7542

R7520

C7524

C7516

C1424

X1403

R7506

R1439

C1457

C7507

C1425

C540

IC501

C507

C532

X7501

IC7504

R7521

D7506

C1422

C1429

R1454

C1446

C528

C1421

R1445

IC503

C559

IC505

C7550

R7533

C7523

L502

FB519

C516

R7539

R7538

R1440

R1421

C1452

C617

D509

Q7504

C7541

C7519

R7530

R1419

C1454

R644

R643

C7509

R7536

R7524

R7512

C593

R599

C531

FB520

R7528

C7530

C7533

FL7502

R1423

R567

C533

R612

R610

C534

C7547

R7540

R672

R595

FB521

C629

FB522

C627

R1420

IC1404

C1453

C1455

Q516

L503

C600

C589

C628

C624

C1449

C595

R616

D546

D545

D543

D541

C577

R575

Q7506

R7544

R7545

R7546

C7504

R7568

C7506

C7505

R7503

C1448

R528

FB523

R574

C623

C1414

R1456

C596

R650

C539

R618

D550

D512

FB518

FB509

C7501

C7510

L504

R569

R1422

C1417

R1426

R1455

C1445

Q518

R649

C580

C574

C571

R1453

C1447

C594

R502

C535

D532

R660

D530

C1443

R661

R504

C536

D531

R1429

C1444

Q520

R670

R1431

R1437

R506

C537

C575

C572

C1427

C1465

C601

C1438

C1440

C1442

R671

R625

C602

IC506

C578

C1423

C1436

C1439

C1441

R621

R629

C1464

R565

R622

R623

C1428

C579

C604

R646

C1430

R628

C587

C592

C603

R1480

R582

Q407

R615

R652

IC1407

R1481

R566

C588

D518

R588

R580

D533

R1483

R1482

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Page 83

TERMINAL Unit (Side-B)

LC-32XL8E/S/RU, LC-37XL8E/S/RU

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Page 84

LC-32XL8E/S/RU, LC-37XL8E/S/RU

4567 910

S155

R153

D152

S154

S152

R151

D151

S151

R152

S153

R154

S156

S157

D155

P151

KEY Unit (Side A) KEY Unit

(Chip Parts Side A)

[3] R/C, LED UNIT PRINTED WIRING BOARD [4] KEY UNIT PRINTED WIRING BOARD

R/C, LED Unit (Side A) R/C, LED Unit

(Chip Parts Side A)

C102

R101

C107

SLD101

RMC101

D101

R132

IC101

C105

C104

R136

R135

R102

R105

D103

R117

R137

R127

R122

R138

R110

Q104

Q105

Q103

R123

Q107

R106

R109

D114

D115

Q106

R108

R104

R124

R121

R107

Q102

R126

R116

D116

C101

R118

C110

R103

RMC102

IC102

P101

R119

C111

C108

R120

C103

R139 R140

P102

4567 910

7 – 8

Page 85

[5] MINI AV UNIT PRINTED WIRING BOARD

LC-32XL8E/S/RU, LC-37XL8E/S/RU

MiNI AV Unit (Side-A)

MiNI AV Unit (Chip Side-A)

C831

R820

IC801

C804

FB805

C828

C816

C832

R823

R822

D806

VA801 VA802

LUG901

R819

C830

R839

C801

R809

C827

R821

FB903

R910

C904

FB902

R907R908

R909

C903

R914

FL901

R906

D903

FL903

R915

FL902

D904D905

R911R912

P801

LUG902

P901

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Page 86

LC-32XL8E/S/RU, LC-37XL8E/S/RU

MINI AV Unit (Side-B)

1097654

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Page 87

[6] POWER UNIT PRINTED WIRING BOARD

POWER Unit (Side-A)

LC-32XL8E/S/RU, LC-37XL8E/S/RU

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Page 88

LC-32XL8E/S/RU, LC-37XL8E/S/RU

POWER Unit (Side-B)

1097654

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Page 89

LC32XL8E

CHAPTER 8. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIAGRAM

VOLTAGE MEASUREMENT CONDITION:

1. The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 230V.

Signals are fed by a colour bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.

INDICATION OF RESISTOR & CAPACITOR:

RESISTOR

1. The unit of resistance “Ω” is omitted.

(K=kΩ=1000 Ω, M=MΩ).

2. All resistors are ± 5%, unless otherwise noted.

(K= ± 10%, F= ± 1%, D= ± 0.5%)

3. All resistors are 1/16W, unless otherwise noted.

CAPACITOR

1. All capacitors are µF, unless otherwise noted.

(P=pF=µµF).

2. All capacitors are 50V, unless otherwise noted.

LC-32XL8E/S/RU, LC-37XL8E/S/RU

Service Manual

CAUTION:

This circuit diagram is original one, therefore there may be a slight difference from yours.

SAFETY NOTES:

1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE REPLACING PARTS.

2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OPERATING.

IMPORTANT SAFETY NOTICE:

PARTS MARKED WITH “ ” ( ) ARE IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMANCE OF THE SET.

8 – 1

Page 90

LC-32XL8E/S/RU, LC-37XL8E/S/RU

[2] SCHEMATIC DIAGRAM

MAIN Unit-1

1097654

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Page 91

MAIN Unit-2

LC-32XL8E/S/RU, LC-37XL8E/S/RU

1097654

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8 – 3

Page 92

LC-32XL8E/S/RU, LC-37XL8E/S/RU

MAIN Unit-3

1097654

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8 – 4

Page 93

MAIN Unit-4

LC-32XL8E/S/RU, LC-37XL8E/S/RU

1097654

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8 – 5

Page 94

LC-32XL8E/S/RU, LC-37XL8E/S/RU

MAIN Unit-5

1097654

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8 – 6

Page 95

MAIN Unit-6

LC-32XL8E/S/RU, LC-37XL8E/S/RU

1097654

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8 – 7

Page 96

LC-32XL8E/S/RU, LC-37XL8E/S/RU

MAIN Unit-7

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Page 97

MAIN Unit-8

LC-32XL8E/S/RU, LC-37XL8E/S/RU

1097654

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Page 98

LC-32XL8E/S/RU, LC-37XL8E/S/RU

MAIN Unit-9

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Page 99

MAIN Unit-10

LC-32XL8E/S/RU, LC-37XL8E/S/RU

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Page 100

LC-32XL8E/S/RU, LC-37XL8E/S/RU

MAIN Unit-11

1097654

1311 191816151412 17

8 – 12

Sharp LC-32XL8E/S/RU, LC-37XL8E/S/RU Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual