Sharp LC-32HT2U Service Manual

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LC-32HT2U

SERVICE MANUAL

No. S86V7LC32HT2U

LCD COLOR TELEVISION

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.

CONTENTS

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRE-

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

PRECAUTIONS A PRENDRE LORS DE

LA REPARATION...............................................ii

PRECAUTIONS FOR USING LEAD-FREE

SOLDER ........................................................... iii

CHAPTER 1. SPECIFICATIONS

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

CHAPTER 2. OPERATION MANUAL

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

CHAPTER 3. DIMENSIONS

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

CHAPTER 4. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS ................... 4-1

CHAPTER 5. ADJUSTMENT

[1] ADJUSTMENT PROCEDURE ....................... 5-1

[2] HOW TO SWITCH BETWEEN HOTEL TV

MODE AND NORMAL MODE...................... 5-18

MODEL

CHAPTER 8. OVERALL WIRING/BLOCK DIAGRAM

[1] OVERALL WIRING DIAGRAM ......................8-1

[2] SYSTEM BLOCK DIAGRAM.........................8-3

CHAPTER 9. PRINTED WIRING BOARD ASSEM­BLIES

[1] MAIN Unit ...................................................... 9-1

[2] IF Unit ............................................................9-9

[3] PPV Unit ...................................................... 9-11

[4] R/C, LED Unit ..............................................9-12

[5] KEY Unit ......................................................9-13

CHAPTER 10. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIA-

GRAM.......................................................... 10-1

[2] MAIN Unit ....................................................10-2

[3] IF Unit ........................................................10-46

[4] PPV Unit ....................................................10-50

[5] R/C, LED Unit ............................................10-52

[6] KEY Unit ....................................................10-53

Parts Guide

LC-32HT2U

CHAPTER 6. TROUBLE SHOOTING TABLE

[1] TROUBLE SHOOTING TABLE...................... 6-1

CHAPTER 7. MAJOR IC INFORMATIONS

[1] MAJOR IC INFORMATIONS.......................... 7-1

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.

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

LC-32HT2U

i

LC-32HT2U

Service Manual

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRECAUTION

WARNING

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

2. Disconnect AC power before servicing.

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 120 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.

• 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 0.75 Vrms (this corresponds to 0.5 mA rms AC.) or
more is excessive and indicates a potential shock hazard which
must be corrected before returning the monitor to the owner.

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

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.

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

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

AV

CAUTION: FOR CONTINUED

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

F701 (125V 8A),
F4701, F5701 (250V 3A ~ 115

O

C)

DVM

AC SCALE

1.5k ohm
10W

TO EXPOSED
METAL PARTS

CONNECT TO
KNOWN EARTH
GROUND

0.15µF

TEST PROBE

LC-32HT2U

ii

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

De nombreuses pièces, électriques et mécaniques, dans les télévi­seur ACL présentent des caractéristiques spéciales relatives à la sé­curité, qui ne sont souvent pas évidentes à vue. Le degré de protec­tion ne peut pas être nécessairement augmentée en utilisant des
pièces de remplacement étalonnées pour haute tension, puissance,
etc.
Les pièces de remplacement qui présentent ces caractéristiques sont
identifiées dans ce manuel; les pièces électriques qui présentent ces
particularités sont identifiées par la marque " " et hachurées dans la
liste des pièces de remplacement et les diagrammes schématiques.

Pour assurer la protection, ces pièces doivent être identiques à celles
utilisées dans le circuit d'origine. L'utilisation de pièces qui n'ont pas
les mêmes caractéristiques que les pièces recommandées par l'usine,
indiquées dans ce manuel, peut provoquer des électrocutions, incen­dies, radiations X ou autres accidents.

AVERTISSEMENT

1.

2.

3.

4.

5.

•

•

•

•

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

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

AV

Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux
conseils suivants.

N'entreprendre aucune modification de tout circuit. C'est danger­eux.

Débrancher le récepteur avant toute réparation.

Inspecter tous les faisceaux de câbles pour s'assurer que les fils
ne soient pas pincés ou qu'un outil ne soit pas placé entre le châs­sis et les autres pièces métalliques du récepteur.

Inspecter tous les dispositifs de protection comme les boutons de
commande non-métalliques, les isolants, le dos du coffret, les cou­vercles ou blindages de réglage et de compartiment, les réseaux
de résistancecapacité, les isolateurs mécaniques, etc.

S'assurer qu'il n'y ait pas de danger d'électrocution en vérifiant la
fuite de courant, de la facon suivante:

Brancher le cordon d'alimentation directem-ent à une prise de cou­rant de 120V. (Ne pas utiliser de transformateur d'isolation pour
cet essai).

A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ
10 watts en parallèle avec un condensateur de 0.15µF en série
avec toutes les pièces métalliques exposées du coffret et une terre
connue comme une conduite électrique ou une prise de terre
branchée à la terre.

Utiliser un voltmètre CA d'une sensibilité d'au moins 5000Ω/V pour
mesurer la chute de tension en travers de la résistance.

Toucher avec la sonde d'essai les pièces métalliques exposées qui
présentent une voie de retour au châssis (antenne, coffret métalli­que, tête des vis, arbres de commande et des boutons, écusson,
etc.) et mesurer la chute de tension CA en-travers de la résistance.
Toutes les vérifications doivent être refaites après avoir inversé la
fiche du cordon d'alimentation. (Si nécessaire, une prise
d'adpatation non polarisée peut être utilisée dans le but de termin­er ces vérifications.)
La tension de pointe mesurèe ne doit pas dépasser 0.75V (corre­spondante au courant CA de pointe de 0.5mA).
Dans le cas contraire, il y a une possibilité de choc électrique qui
doit être supprimée avant de rendre le récepteur au client.

PRECAUTION:POURLAPRO­TECTION CONTINUE CONTRE
LES RISQUES D'INCENDIE, RE­MPLACER LE FUSIBLE

F701 (125V 8A),
F4701, F5701 (250V 3A ~ 115

O

C)

VERIFICATIONS CONTRE L'INCEN-DIE ET LE
CHOC ELECTRIQUE

Avant de rendre le récepteur à l'utilisateur, effectuer les vérifica­tions suivantes.

DVM

ECHELLE CA

1.5k ohm
10W

0.15

µ

F

SONDE D'ESSAI

AUX PIECES
METALLIQUES
EXPOSEES

BRANCHER A UNE
TERRE CONNUE

AVIS POUR LA SECURITE

LC-32HT2U

iii

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:

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

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

PARTS CODE

PRICE
RANK

PART

DELIVERY

DESCRIPTION

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

LC-32HT2U

1 – 1

LC-32HT2U

Service Manual

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS

TRANSPORT

RJ-11

* Emergency alert messages via Cable are unreceivable.

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

LCD panel

Number of dots

TV
Function

TV-standard

Receiving
Channel

VHF/UHF

CATV

Digital Terrestrial
Broadcast (8VSB)

Audio multiplex

Audio out

Terminals Rear INPUT 1

INPUT 2

INPUT 3

INPUT 4

INPUT 5

ANTENNA

DIGITAL AUDIO OUTPUT

OUTPUT

OSD language

Power Requirement

Power Consumption

Weight

Dimension
(W H D)

Operating temperature

3,147,264 dots (1366 768 3 dots)

American TV Standard ATSC/NTSC System

VHF 2-13ch, UHF 14-69ch

1-135ch (non-scrambled channel only)

2-69ch

BTSC System

10W 2

AV in, COMPONENT in

AV in, S-VIDEO in

HDMI in with HDCP

Audio in, HDMI in with HDCP

Audio in, DVI-I in with HDCP

75 Unbalance, F Type 1 (VHF/UHF/CATV/ATSC/QAM)

Optical Digital audio output 1 (PCM/Dolby Digital)

Audio out

English/French/Spanish

AC 120 V, 60 Hz

32°F to 104°F (0°C to 40°C)

Item Model: LC-32HT2U

32" Advanced Super View & BLACK TFT LCD

with stand

w/o stand

w/o stand

with stand

164 W

38.6 lbs./17.5 kg

43.0 lbs./19.5 kg

321/

16

2541/641051/64inch

Digital cable*
(64/256 QAM)

1-135ch (non-scrambled channel only)

321/

16

239/

32

457/64inch

++ +

LC-32HT2U

2 – 1

LC-32HT2U

Service Manual

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL

Part names

TV (Front) TV (Rear)

Part names

POWER button

Channel buttons (

/

)

Volume buttons ( VOL

CH

/)

INPUT button

OPC indicator*POWER indicator**

OPC sensor*

Remote control sensor

NOTE

* OPC: Optical Picture Control.

** for TV status indicator.

+

-

TRANSPORT terminal*

DVI terminal

(INPUT 5)

INPUT 2

terminals

AUDIO OUTPUT

terminals

HDMI terminal (INPUT 3)

HDMI terminal (INPUT 4)

Antenna/Cable in

INPUT 1 terminals

RS-232C terminal

DIGITAL AUDIO

OUTPUT

terminal

DVI AUDIO

terminal

(INPUT 5)

AUDIO input

terminals

(INPUT 4)

AC INPUT terminal

NOTE

* The TRANSPORT terminal is designed for hotel communication. Do not use it for other purposes.

LC-32HT2U

2 – 2

Quick Reference

Attaching the stand

Basic adjustment settings

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

Before performing work spread cushioning over the base area to lay the TV on.

This will prevent it from being damaged.

Short screws ( 4)

(Used in step 2)

Long screws ( 4)

(Usedinstep3)

Hex key

NOTE

To detach the stand, perform the steps in reverse order.

Hex key

Short screw

Soft cushion

Long

screw

CAUTION

Attach the stand in the correct direction.

Incorrect installation of the stand may result in the TV falling over.

Be sure to follow the instructions.

Confirm the 8 screws supplied with the TV.

Attach the two parts of the stand unit to each

other using the 4 short screws and the hex

key (supplied with the product) as shown.

Insert the stand into the opening on the

bottom of the TV.

Insert and tighten the 4 long screws into

the 4 holes on the rear of the TV.

1

2

3

Picture

Setup

Audio

Option

Power Control

Digital Setup

Picture

Menu items for TV/INPUT 1/INPUT 2

OPC

Backlight

Contrast

Brightness

Color

Tint

Sharpness

Advanced

Color Temp.

Black

3D-Y/C

Monochrome

Film Mode

Range of OPC

Input Skip

Input Label

Parental CTRL

Position

Standby Mode

Language

Reset

Reset

Reset

Treble

Bass

Balance

Surround

Audio Only

Digital Noise Reduction

Output Select

Caption Setup

Program Title Display

No Signal Off

No Operation Off

Audio Setup

Specification

Menu items for HDMI/DVI

OPC

Backlight

Contrast

Brightness

Color

Tint

Sharpness

Advanced

Color Temp.

Black

Monochrome

Film Mode

Range of OPC

Input Skip

Input Label

Position

Standby Mode

Language

Reset

Reset

Reset

Treble

Bass

Balance

Surround

Audio Only

Digital Noise Reduction

HDMI Setup

Output Select

No Signal Off

No Operation Off

Setup

Power Control

Option

Audio

LC-32HT2U

3 – 1

LC-32HT2U

Service Manual

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS

279/16(700.0)

15

3

/

4

(400)

15

35

/

64

(394.6)

25

41

/

64

(651)

23

9

/

32

(591)

2

3

/

8

(60)

1051/64(274)

3

61

/

64

(100)

7

7

/

8

(200)

77/8(200)

21

15

/64(539)

32

1

/16(814)

4

57

/

64

(124)

3

15

/

32

(88)

Unit: inch/(mm)

LC-32HT2U

4 – 1

LC-32HT2U

Service Manual

CHAPTER 4. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS

1. Remove the SD Card Cover .

2. Remove the 4 lock screws and detach the Stand Base Ass'y.

3. Remove the 9 lock screws, 3 lock screws and detach the Rear Cabinet.

SD-Card
Cover

Rear
Cabinet

Stand Base Ass'y

3

3

2

1

LC-32HT2U

4 – 2

4. Remove the 2 lock screws and detach the Stand Assist Angle.

5. Remove the 4 lock screws and detach the Center Angle-L and R.

6. Remove the 3 lock screws and detach the Stand Cover.

7. Remove the 5 lock screws and detach the Stand Fix Angle.

Stand Assist Angle

Stand Cover

6

Stand Fix Angle

7

Center Angle-R

Center Angle-L

5

5

4

LC-32HT2U

4 – 3

8. Disconnect the connectors and, and detach the Speaker L and R.

9. Disconnect the connector CN7501.

10.Remove the 5 lock screws and detach the MAIN Shield.

Main Shield

Speaker L

10

8

Speaker R

8

CN7501

9

LC-32HT2U

4 – 4

11.Disconnect the connectors, (P2002, P2601, P2602, P2603, P9701, P9702, SC1102, SC1101, SC1301, CN1, CN2, P2703, P502, CN5701,
CN5702, CN5703) and Remover the Coaxial Cable.

12.Remove the 2 lock screws and detach the R/C, LED Unit.

13.Remove the KEY Unit and Remove the 3 lock screws from the Top Cover Ass'y

CN1 CN2

P2704

SC502

SC501

R/C, LED Unit

12

Top Cover Ass`y

Key Unit

13

CN5701

CN5703

P2002

CN5702

SC1101

P9701

P2603

P2602

P2601

SC1102

P9702

P2703

SC1301

Coaxial

Cable

P502

11

11

11

11

LC-32HT2U

4 – 5

14.Remove the 4 lock screws and detach the PWB Ass'y.

15.Remove the 7 lock screws, 2 lock screws and detach the Jack Angle Long.

16.Remove the 4 lock screws and detach the IF Unit.

17.Remove the 6 lock screws and detach the POWER Supply Unit.

18.Remove the 5 lock screws and detach the MAIN Unit.

Jack Angle
Long

IF Unit

Chassis

Power Supply Unit

14

16

17

Main Unit

18

15

15

15

LC-32HT2U

4 – 6

19.Remove the 6 lock screws.

20.Remove the 10 lock screws and detach the Center Assist Angle and Rug Angles and LCD Panel Module.

Rug Angle

Center Assist Angle

20 20 2019 19

20 2019 19

LC-32HT2U

5 – 1

LC-32HT2U

Service Manual

CHAPTER 5. ADJUSTMENT

[1] ADJUSTMENT PROCEDURE

The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is
required due to part replacement, make an adjustment according to the following procedure.

1. After replacement of any PWB unit and/or IC for repair, please note the following.

• When replacing the following units, make sure to prepare the new units loaded with updated software.

MAIN Unit: DUNTKD640FM25

IF Unit: DUNTKD643FM25

2. Upgrading of each microprocessor software

2.1. Software version upgrade

The model employs the following software.

•Main software

• Monitor microprocessor software

The main software and the monitor microprocessor software can be upgraded by using a general-purpose SD memory card.

The followings are the procedures for upgrading, explained separately for each of the main software, the monitor microprocessor software.

2.2. Main software version upgrade

• SD memory card of 32MB or higher capacity

• PC running on Windows 98/98SE/ME/2000/XP operating system

• SD memory card reader/writer with USB connectivity.

• SD memory card formatting software

(Downloadable at http://panasonic.jp/support/audio/sd/download/sd_formatter_e.html)

To upgrade the main software, it is necessary to get ready the SD card for version upgrade before you start.

Follow the steps below and create the SD card for version upgrade.

1. Insert the SD card into the SD card reader/writer. Start the SD card formatting software. Click [Format].
(When you have the drive options, select the drive where the SD card is inserted before you proceed.)

Caution: Never “POWER OFF” the unit when software upgrade is ongoing.
Otherwise the system may be damaged beyond recovery.

Get ready before you start

Preparations

LC-32HT2U

5 – 2

2. When the formatting is over, the following window appears. Click [OK].

3. Click [Exit] to finish the formatting.

NOTE: When you are done, take out the SD card once to make sure it is finished, and then insert it again.

4. Copy the binary image file D50UAxxx.SDC (named temporarily) for version upgrade to the root directory (folder) of the SD card drive.

NOTE: In the SD card drive, do not store other folders or unrelated files, or more than one binary image files for version upgrade.

Now the SD card for version upgrade is ready.

5. Shut off the AC power (i.e. unplug the AC cord).

6. Insert the SD card for version upgrade (prepared as above) into the service socket located lower side from center at terminals, above S-VIDEO
terminal in the rear of the unit, in a way that the cut corner of the SD card comes at the upper side.

NOTE: If the SD card is inserted in a wrong way, the card will go deep inside the unit beyond retrieval. Take due care to insert the SD card correctly.

7. Turn on the AC power (i.e. plug in the AC cord).

8. After the unit startup, the system upgrade screen as shown below appears within 20-40 seconds.

How to upgrade the software

SYSTEM UPGRADE

Program

EEPROM

12%

Part Init

U0601051OLD Version

NEW Version U0601241

M150

LC-32HT2U

5 – 3

9. Even a single failure in the process will trigger the upgrade failure screen as shown below. The word “NG” changes to red for the item failed.

NOTE: In the event of a failure, repeat the upgrading process. If the process repeatedly fails, it is likely that the hardware is troubled.

10.Upon completion of the whole process, the upgrade success screen as shown below appears. You can check the new software version on this
screen. The version information appears after the upgrade is complete.

11.Shut off the AC power to the unit (unplug the AC cord), and remove the SD card for version upgrade.

12.Now the software version upgrade is complete.

NOTE: When you are done with the software version upgrade, start the set, go to the top page of the adjustment process screen and check the main

software version information.

UPGRADE FAILURE

Program

EEPROM

NG

NG

24%

Part Init

U0601051OLD Version

NEW Version U0601241

UPGRADE SUCCESS

Program

EEPROM

NG

NG

100%

Part Init

U0601241Main Version

LC-32HT2U

5 – 4

2.3. Monitor microprocessor software version upgrade

NOTE: If “Monitor version” in the process menu is “2.00M”, the monitor microprocessor software can not be rewritten (because IC2002 has been

replaced with the mask type).

Get ready the same items as listed in the “Main software version upgrade”.

Create the SD card for monitor microprocessor software version upgrade in the same manner as explained in the “Main software version upgrade”.
Copy the binary image file M150Mxxx.SDC (named temporarily) for monitor microprocessor software version upgrade to the SD card drive.

1. Shut off the AC power to the unit (i.e. unplug the AC cord).

2. Insert the SD card for version upgrade (prepared as above) into the service socket located lower side from center at terminals, above S-VIDEO
terminal in the rear of the unit, in a way that the cut corner of the SD card comes at the upper side.

NOTE: If the SD card is inserted in a wrong way, the card will go deep inside the unit beyond retrieval. Take due care to insert the SD card correctly.

3. Turn on the AC power (i.e. plug in the AC cord).

CAUTION: The moment this operation is done, the upgrading of the monitor microprocessor software starts. While the upgrade is ongoing,

never power off the unit. Otherwise the upgrade will fail and the system may have a serious damage beyond recovery (inability
to start).

4. After the unit startup, the system upgrade screen as shown below appears within 10-30 seconds.

5. A failure in the process will trigger the upgrade failure screen. The word “NG” changes to red for the item failed.

NOTE: In the event of a failure, repeat the upgrading process. If the process repeatedly fails, it is likely that the hardware is troubled.

6. Upon completion of the whole process, the upgrade success screen as shown below appears.You can check the new software version on this
screen. The version information appears after the upgrade is complete.

7. Shut off the AC power to the unit (unplug the AC cord), and remove the SD card for version upgrade.

8. Now the software version upgrade is complete.

NOTE: When you are done with the software version upgrade, start the set, go to the top page of the adjustment process screen and check the mon-

itor microprocessor software version information.

Get ready before you begin

Preparation

How to upgrade the software

MONITOR UPGRADE

Program

NG

12%

1.00OLD Version

NEW Version 1.02

M150

UPGRADE SUCCESS

Program

NG

100%

0.98OLD Version

NEW Version 1.00

LC-32HT2U

5 – 5

2.4. Video signal adjustment procedure

1) Image adjustment

1. Device check

Before adjustment, make sure that the adjusting device and signal source are set for the Sharp LCD US.

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

2. Entering the adjustment process mode

3. N358 composite signal / Tuner adjustment

4. Component 15K signal adjustment

• Composite signal : 0.714Vp-p ± 0.02Vp-p (Pedestal to white level)

• 15K component signal : Y level : 0.714Vp-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

• DVI-I (Analog RGB) signal : RGB level : 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment pro-

cess mode

Enter the process adjustment mode using the process adjustment remote control.

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment N358 signal

US-10ch

Feed the N358 color bar signal (75% color saturation) to VIDEO 1 input.
Feed the RF signal (by use of US-10ch) to TUNER.

2 Auto adjustment

performance

Page 3

Bring the cursor on [ N358 ALL ADJ] and press [ENTER].
[ N358 ALL ADJ FINISH] appears when finished.

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment 480i signal Feed the 100% color bar signal to VIDEO 1 component input.

2 Auto adjustment

performance

Page 5

Bring the cursor on [ COMP 15K MAIN ADJ] and press [ENTER].
[ COMP 15K MAIN ADJ FINISH] appears when finished.

[Video input signal] [US-10CH]

100% white 100% white

75% color saturation

0% black

480i
100% color bar signal

100% white

LC-32HT2U

5 – 6

5. Component 33K signal adjustment

6. DVI-I (analog) signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment 1080i signal Feed the 100% color bar signal to VIDEO 1 component input.

2 Auto adjustment

performance

Page 6

Bring the cursor on [ HDTV ADJ] and press [ENTER].
[ HDTV ADJ FINISH] appears when finished.

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment DVI-I (analog)

signal: XGA
(1024 x 768) 60Hz
SYNC:
HV separate

Feed the XGA (100%) white 1/2 window to DVI-I (analog).

2 Auto adjustment

performance

Page 7

Bring the cursor on [ DVI ANALOG ADJ] and press [ENTER].
[ DVI ANALOG ADJ OK] appears when finished.

0% black

1080i
100% color bar signal

100% white

100% White

0% Black

1/4

1/4

1/2

1/4

1/4

1/2

LC-32HT2U

5 – 7

2.5. Adjustment of white balance

1. White balance adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Setting 1) Apply the following settings to the set.

AV MODE: [DYNAMIC]
Backlight: +16
Aging Time: Min. 60 minutes

2) Connect a white balance adjustment jig and the set.

2 Execution of auto

adjustment

[Command]
Process mode
KRSW0001
KKT10037

Setting
KYOF0000
OSDS0001
SBSL0016

Multipoint adjustment mode
MSET0001

Adjustment value initializa­tion
MSET0004

Point 6
LEV60944
MG6G****
MG6B****
MG6R****

Point 5
LEV50800
MG5G****
MG5B****
MG5R****

[Adjustment method]

1) Send the “monitor adjustment process” code with the R/C.

2) Set the point 6 to the specified gradation. Set the strongest color as the fixed color
and adjust RGB to the standard value by minus adjustment.

3) Set the point 5 to the specified gradation. Set the correction value of G [(Initial value
of point 5) x (G value of point 6) / (Initial value of point 6)] and adjust RB to the stan­dard value.

4) Set the point 4 to the specified gradation. Set the correction value of G [(Initial value
of point 4) x (G value of point 6) / (Initial value of point 6)] and adjust RB to the stan­dard value.

5) Set the point 3 to the specified gradation. Set the correction value of G [(Initial value
of point 3) x (G value of point 6) / (Initial value of point 6)] and adjust RB to the stan­dard value.

6) Set the point 2 to the specified gradation. Set the correction value of G [(Initial value
of point 2) x (G value of point 6) / (Initial value of point 6)] and adjust RB to the stan­dard value.

7) Set the point 1 to the specified gradation. Set the correction value of G [(Initial value
of point 1) x (G value of point 6) / (Initial value of point 6)] and adjust RB to the stan­dard value.

8) Write the adjustment values with the MSET0003 command and turn off AC power.

* Initial value of each point: Set gradation level x 4

[Adjustment values]

•Conform to “Standard set” submitted by Engineering Department.

[LC-32D50U] Teaching set
[Adjustment standard values] Measuring device: [Minolta CA-210] technical measuring
device

Point 4 Level Standard value Adjustment spec Test spec
LEV40576

Point 6 944

X=0.272

±0.0012 ±0.0020

MG4G**** y=0.277
MG4B****

Point 5 800

X=0.272

±0.0012 ±0.0020

MG4R**** y=0.277

Point 4 576

X=0.272

±0.0012 ±0.0020

Point 3 y=0.277
LEV30464

Point 3 464

X=0.272

±0.0012 ±0.0020

MG3G**** y=0.277
MG3B****

Point 2 264

X=0.272

±0.0012 ±0.0020

MG3R**** y=0.277

Point 1

200

X=0.272

±0.0020 ±0.0035

Point 2 y=0.277
LEV20264
MG2G****
MG2B****

MG2R****

Note

2

Test conditions of the set:
AV MODE: [DYNAMIC] (Reset)
Monochrome: ON
Aging Time: Min. 60 minutes

Point 1
LEV10200
MG1G****
MG1B****
MG1R****

Writing
MSET0003

LC-32HT2U

5 – 8

2.6. Key writing

1. EDID writing (Main PWB: DUNTKD640FM13 DVI input terminal/HDMI input terminal)

Adjustment item Adjustment conditions Adjustment procedure

1 DVI EDID writing File version check 1) Write the EDID data for DVI into IC1505 mounted on the

main PWB with the checker.
TL1514: I2C clock, TL1515: I2C data
TL1516: 5V, TL1517: GND
TL1536: write protection (H: WP, Low: write enable)

2 HDMI EDID writ-

ing

Inspection mode
File version check

1) Write the EDID data for HDMI into IC1501/IC1502
mounted on the main PWB with the checker.
TL1508/1510: I2C clock, TL1509/1511: I2C data
TL1512/1513: 5V, TL1519/1518: GND
TL1534/1535: write protection (H: WP, Low: write
enable)

2) Perform data writing before the checker inspects HDMI.
(If no data has been written, HDMI does not function.)

LC-32HT2U

5 – 9

2. Adjustment sequence (adjustment according to the G adjustment value of gradation 6)

* Make sure the adjusting point gradations are correct since they are different for each model.

PC Set

Set the light level to MAX with the light control command
(SBSL0016 for 45).
SBSL0016

Setting is complete.
OK

Multipoint adjustment mode setting
MSET0001

Multipoint adjustment mode is set.
OK

Initialize adjustment values.
MSET0004

Initialization is done.
OK

Adjustment gradation setting (point 6 = 236 gradation adjustment*)
LEV60944

Adjust RGB to the target xy values.
MG6RXXXX
MG6GXXXX
MG6BXXXX
* XXXX indicates the adjusted values between 0000 and 1023
(4 digit decimal number with zero fill).
* In order to adjust by reducing the value, set the strongest color
as the fixed color.
* The default adjustment value of RGB is the parameter value of
the LEV6 command multiplied by 2.

Adjustment values are set.
OK

Adjustment gradation setting (point 5 = 200 gradation adjustment*)
LEV50800

Adjustment values are set.
OK

Repeat until RGB
become the target
values.

Pattern display

Adjustment values are set.
OK

Correction of G value
MG5GXXXX
When G is changed at gradation 6, calculate the ratio of the
change and set the following value to XXXX: (the value set with
LEV5)x2x(theratio).

Adjustment values are set.
OK

Pattern display

The adjustment value is
reflected in the image.

LC-32HT2U

5 – 10

PC Set

Adjust RB to the target xy values.
MG5RXXXX
MG5BXXXX
* XXXX indicates the adjusted values between 0000 and 1023
(4 digit decimal number with zero fill).
*Gisfixed.
* The default adjustment value of RGB is the parameter value
of the LEV5 command multiplied by 2.

Adjustment values are set.
OK

Repeat until RGB
become the target
values.

The adjustment value is
reflected in the image.

Start measurement

Adjustment gradation setting (point 4 = 144 gradation adjustment*)
LEV40576

Adjustment values are set.
OK

Correction of G value
MG4GXXXX
When G is changed at gradation 6, calculate the ratio of the
change and set the following value to XXXX: (the value set with
LEV4)x2x(theratio).

Adjustment values are set.
OK

Pattern display

Adjust RB to the target xy values.
MG4RXXXX
MG4BXXXX
* XXXX indicates the adjusted values between 0000 and 1023
(4 digit decimal number with zero fill).
*Gisfixed.
* The default adjustment value of RGB is the parameter value of

the LEV4 command multiplied by 2.

Adjustment values are set.
OK

Repeat until RGB
become the target
values.

The adjustment value is
reflected in the image.

Adjustment gradation setting (point 3 = 116 gradation adjustment*)
LEV30464

Adjustment values are set.
OK

Correction of G value
MG3GXXXX
When G is changed at gradation 6, calculate the ratio of the
change and set the following value to XXXX: (the value set with
LEV3)x2x(theratio).

Adjustment values are set.
OK

Pattern display

Start measurement

LC-32HT2U

5 – 11

PC Set

Adjust RB to the target xy values.
MG3RXXXX
MG3BXXXX
* XXXX indicates the adjusted values between 0000 and 1023
(4 digit decimal number with zero fill).
* G is fixed.
* The default adjustment value of RGB is the parameter value of
the LEV3 command multiplied by 2.

Adjustment values are set.
OK

Repeat until RGB
become the target
values.

The adjustment value is
reflected in the image.

Adjustment gradation setting (point 2 = 66 gradation adjustment*)
LEV20264

Adjustment values are set.
OK

Correction of G value
MG2GXXXX
When G is changed at gradation 6, calculate the ratio of the
change and set the following value to XXXX: (the value set with
LEV2)x2x(theratio).

Adjustment values are set.
OK

Pattern display

Start measurement

Adjust RB to the target xy values.
MG2RXXXX
MG2BXXXX
* XXXX indicates the adjusted values between 0000 and 1023
(4 digit decimal number with zero fill).
* G is fixed.
* The default adjustment value of RGB is the parameter value of
the LEV2 command multiplied by 2.

Adjustment values are set.
OK

Repeat until RGB
become the target
values.

The adjustment value is
reflected in the image.

Adjustment gradation setting (point 1 = 50 gradation adjustment*)
LEV10200

Adjustment values are set.
OK

Correction of G value
MG1GXXXX
When G is changed at gradation 6, calculate the ratio of the
change and set the following value to XXXX: (the value set with
LEV1)x2x(theratio).

Adjustment values are set.
OK

Pattern display

Start measurement

LC-32HT2U

5 – 12

2.7. Initialization to factory settings

After the shipping setting, pull off the AC cord.

NOTE: Never turn on the power after the shipping setting. If power is turned on, perform the shipping setting again.

Adjustment item Adjustment conditions Adjustment procedure

1 Initialization It turns off with AC power supply. Place the cursor on the [INDUSTRY INIT] row, set “ON” with

[+] or [-] of the [VOL] key, and press the [ENT] key.
Version confirmation screen appears.
[SUCCESS] on a green line indicates that the setting is suc­cessfully completed.
(In case of an error, [ERROR] and an error code appear on
a red line.)
Turn off the AC power.

1. User setting

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

3. Password data

4. Operation time

5. Auto installation flag

6. V-CHIP block setting

PC Set

Adjust RB to the target xy values.
MG1RXXXX
MG1BXXXX
* XXXX indicates the adjusted values between 0000 and 1023
(4 digit decimal number with zero fill).
* G is fixed.
* The default adjustment value of RGB is the parameter value of
the LEV1 command multiplied by 2.

Adjustment values are set.
OK

Repeat until RGB
become the target
values.

The adjustment value is
reflected in the image.

Writing of adjusted values
MSET0003

Deletion is complete.
OK

Deleting adjustment patterns
MSET0000

Writing is complete.
OK

Start measurement

Completion of adjustment

LC-32HT2U

5 – 13

2.8. Menu list in process A mode

Page Line Item

1 1 MAIN Version Main microcomputer software version

2BOOT Version
3 Monitor Version Monitor microcomputer software version
4 EQ DATA CHECKSUM Sound parameter checksum
5 TEMPERATURE Read value of temperature sensor
6 LAMP ERROR Number of lamp error
7 NORMAL STANDBY CAUSE Reasons of standby at normal time
8 ERROR STANDBY CAUSE Reasons of standby in the event of error

2 1 INDUSTRY INIT (+Cause) Initialization to factory settings (including clearing Standby Cause data)

2 INDUSTRY INIT Initialization to factory settings
3 HOTELMODE Activate/deactivate the hotel mode
4 Center Acutime Main microcomputer operating time
5 RESET Reset main microcomputer operating time
6 BacklightAcutime Backlight lighting time
7 RESET Reset backlight lighting time
8 LAMP ERROR RESET Lamp error reset

9 VIC XPOS x-coordinate for reading image data
10 VIC YPOS y-coordinate for reading image data
11 VIC COLOR Specification of color for reading image data
12 VIC SIGNAL TYPE Specification of signal for reading image data
13 VIC READ On/Off of image data read operation

3 1 N358 ALL ADJ Auto adjustment of NTSC and TUNER signals

2 N358 MAIN ADJ Auto adjustment of NTSC signal

3 TUNER DAC ADJ Auto adjustment of TUNER

4 N358 MAIN CONTRAST NTSC contrast adjustment

5 TUNER A DAC TUNER DAC adjustment

4 1 TUNER VCHIP TEST(69ch) Execute TUNER TEST

2 TUNER VCHIP TEST(7ch)

3 TUNER VCHIP TEST(10ch)

4 TUNER VCHIP TEST(15ch)

5 1 COMP15K MAIN ADJ Auto adjustment of component 15k

2 COMP15K CONTRAST Component 15k contrast adjustment

6 1 HDTV ADJ HDTV auto adjustment

2 CONTRAST HDTV contrast adjustment

3 Cb GAIN HDTV CB gain adjustment

4 Cr GAIN HDTV CR gain adjustment

5 HDTV Y OFFSET HDTV Y offset adjustment

6 HDTV Cb OFFSET HDTV CB offset adjustment

7 HDTV Cr OFFSET HDTV CR offset adjustment

7 1 DVI ANALOG ADJ DVI ANALOG adjustment

2 R CUTOFF R CUTOFF adjustment value

3 G CUTOFF G CUTOFF adjustment value

4 B CUTOFF B CUTOFF adjustment value

5 R DRIVE R DRIVE adjustment value

6 G DRIVE G DRIVE adjustment value

7 B DRIVE B DRIVE adjustment value

8 1 MONITOR GAMMA IN 1 White balance adjustment IN-Point1

2 MONITOR GAMMA IN 2 White balance adjustment IN-Point2

3 MONITOR GAMMA IN 3 White balance adjustment IN-Point3

4 MONITOR GAMMA IN 4 White balance adjustment IN-Point4

5 MONITOR GAMMA IN 5 White balance adjustment IN-Point5

6 MONITOR GAMMA IN 6 White balance adjustment IN-Point6

7 GAMMA WRITE Write adjustment values

8 GAMMA RESET Reset adjustment values

9 1 MONITOR GAMMA R 1 White balance adjustment OUT R-Point1

LC-32HT2U

5 – 14

9 2 MONITOR GAMMA G 1 White balance adjustment OUT G-Point1

3 MONITOR GAMMA B 1 White balance adjustment OUT B-Point1

4 MONITOR GAMMA R 2 White balance adjustment OUT R-Point2

5 MONITOR GAMMA G 2 White balance adjustment OUT G-Point2

6 MONITOR GAMMA B 2 White balance adjustment OUT B-Point2

7 MONITOR GAMMA R 3 White balance adjustment OUT R-Point3

8 MONITOR GAMMA G 3 White balance adjustment OUT G-Point3

9 MONITOR GAMMA B 3 White balance adjustment OUT B-Point3
10 GAMMA WRITE Write adjustment values
11 GAMMA RESET Reset adjustment values

10 1 MONITOR GAMMA R 4 White balance adjustment OUT R-Point4

2 MONITOR GAMMA G 4 White balance adjustment OUT G-Point4

3 MONITOR GAMMA B 4 White balance adjustment OUT B-Point4

4 MONITOR GAMMA R 5 White balance adjustment OUT R-Point5

5 MONITOR GAMMA G 5 White balance adjustment OUT G-Point5

6 MONITOR GAMMA B 5 White balance adjustment OUT B-Point5

7 MONITOR GAMMA R 6 White balance adjustment OUT R-Point6

8 MONITOR GAMMA G 6 White balance adjustment OUT G-Point6

9 MONITOR GAMMA B 6 White balance adjustment OUT B-Point6
10 GAMMA WRITE Write adjustment values
11 GAMMA RESET Reset adjustment values

11 1 AUDIO SELECT Select sound parameter data (ROM/EEP)

2 INPUT_TRIM_SP

3 INPUT_TRIM_HP

4 CLIPPER_LEVEL

5ANGLE

6 MASTER_VOLUME

7SCART_PRESCALE

8 FM_AM_PRESCALE

9 I2S1_PRESCALE
10 SCART1_VOLUME
11 SCART2_VOLUME

12 1 AIN1_ADC_VOLUME

2 AIN2_ADC_VOLUME

3 AIN3_ADC_VOLUME

4 AIN4_ADC_VOLUME

5 AIN5_ADC_VOLUME

6 AIN6_ADC_VOLUME

13 1 SUB_VOLUME_SURROUND

2 SUB_VOLUME_FLAT

3 SUB_VOLUME_EQ

4 SUB_VOLUME_HP

5

SUB_VOLUME_HP_CENTER
SP

6

SUB_VOLUME_CENTERSP_
EQ

7

SUB_VOLUME_CENTERSP_

FLAT
8 BBE_HF_ADJUST
9 BBE_LEVEL

10 BBE_MACH3_F0
11 BBE_MACH3_Q
12 BBE_MACH3_GAIN

14 1 EQ_MODE

2 PEQ1_F0
3 PEQ1_Q
4 PEQ1_GAIN
5 PEQ2_F0
6 PEQ2_Q
7 PEQ2_GAIN

Page Line Item

LC-32HT2U

5 – 15

14 8 PEQ3_F0

9 PEQ3_Q

10 PEQ3_GAIN
11 PEQ4_F0
12 PEQ4_Q
13 PEQ4_GAIN

15 1 PEQ5_F0

2 PEQ5_Q
3 PEQ5_GAIN
4 EALA_GAIN

16 1 BRIGHTNESS DA0

2 BRIGHTNESS DA1
3 BRIGHTNESS DA2
4 BRIGHTNESS DA3
5 BRIGHTNESS DA4
6 BRIGHTNESS DA5
7 BRIGHTNESS DA6
8 BRIGHTNESS DA7
9 BRIGHTNESS DA8

10 BRIGHTNESS DA9
11 BRIGHTNESS DA10
12 BRIGHTNESS DA11

17 1 BRIGHTNESS DA12

2 BRIGHTNESS DA13
3 BRIGHTNESS DA14
4 BRIGHTNESS DA15
5 BRIGHTNESS DA16
6 BRIGHTNESS DA17
7 BRIGHTNESS DA18
8 BRIGHTNESS DA19
9 BRIGHTNESS DA20

10 BRIGHTNESS DA21
11 BRIGHTNESS DA22

18 1 BRIGHTNESS DA23

2 BRIGHTNESS DA24
3 BRIGHTNESS DA25
4 BRIGHTNESS DA26
5 BRIGHTNESS DA27
6 BRIGHTNESS DA28
7 BRIGHTNESS DA29
8 BRIGHTNESS DA30
9 BRIGHTNESS DA31

10 BRIGHTNESS DA32

19 1 OPC33 ADLEVEL 0

2 OPC33 ADLEVEL 1
3 OPC33 ADLEVEL 2
4 OPC33 ADLEVEL 3
5 OPC33 ADLEVEL 4
6 OPC33 ADLEVEL 5
7 OPC33 ADLEVEL 6
8 OPC33 ADLEVEL 7
9 OPC33 ADLEVEL 8

10 OPC33 ADLEVEL 9
11 OPC33 ADLEVEL 10
12 OPC33 ADLEVEL 11

20 1 OPC33 ADLEVEL 12

2 OPC33 ADLEVEL 13
3 OPC33 ADLEVEL 14

Page Line Item

LC-32HT2U

5 – 16

2.9. Code list for Standby Cause

20 4 OPC33 ADLEVEL 15

5 OPC33 ADLEVEL 16
6 OPC33 ADLEVEL 17
7 OPC33 ADLEVEL 18
8 OPC33 ADLEVEL 19
9 OPC33 ADLEVEL 20

10 OPC33 ADLEVEL 21
11 OPC33 ADLEVEL 22

21 1 OPC33 ADLEVEL 23

2 OPC33 ADLEVEL 24
3 OPC33 ADLEVEL 25
4 OPC33 ADLEVEL 26
5 OPC33 ADLEVEL 27
6 OPC33 ADLEVEL 28
7 OPC33 ADLEVEL 29
8 OPC33 ADLEVEL 30
9 OPC33 ADLEVEL 31

22 1 V6 OS THERMO 1

2V6 OS THERMO 2
3V6 OS THERMO 3
4V6 OS THERMO 4
5V6 OS THERMO 5
6V6 OS THERMO 6
7V6 OS THERMO 7

23 1 V5 OS THERMO 1

2V5 OS THERMO 2
3V5 OS THERMO 3
4V5 OS THERMO 4
5V5 OS THERMO 5
6V5 OS THERMO 6
7V5 OS THERMO 7

24 1 MONITOR TIME OUT

2 MONITOR MAX TEMP
3 MONITOR STANDBY CAUSE

25 1 LCD TEST PATTERN

26 1 KEY LOCK(1217)

2 KOUTEI AREA ALL CLEAR
3 A MODE AREA CLEAR
4 BACKUP AREA CLEAR
5 B MODE AREA CLEAR
6 EXECUTION

27 1 EEP SAVE

2 EEP RECOVER
3 STANDBY CAUSE RESET

Code Indication Description

1 RC_STNBY /* Standby set by remote control */
2 E_CCKMVT /* Abnormal voltage of CCKM line detected */
5 OUT_OF_R “/* While a PC display is on, unspecified input continued long time. */”
6 NO_OPERT /* Off caused by no operation */
7 NO_SIGNA /* Off caused by no signal */
8 PC_MODE1 /* Set by the PC power management mode 1 */

9 PC_MODE2 /* Set by the PC power management mode 2 */
A SLEEP_TM /* Set by off timer */
B E_NOMONI /* Incompatible monitor is connected to the AVC center. */
C OFF_232C /* Set by the command from RS232C */

Page Line Item

LC-32HT2U

5 – 17

E AVC_TACT /* Set by the front switch at the AVC center */
F BSBOOKED /* The pre-set time has passed since TV was turned on from standby by the BS timer. */

10 E_AVCFAN /* Fan failure at the AVC center */
11 E_BSSUBM /* Communication failure with the BS sub microcomputer (Not used) */
12 E_CVICIC /* CVIC failure */
13 E_AVCTMP /* Abnormal temperature at the AVC center */
14 E_1BITAU /* 1Bit-AMP failure */
15 E_MONIPW /* Monitor main power failure detected */
16 E_MONITR /* Monitor problem detected */
17 E_FNLOCK /* Fan lock for North America */
40 /* Failure in Digital Standby */

Code Indication Description

LC-32HT2U

5 – 18

[2] HOW TO SWITCH BETWEEN HOTEL TV MODE AND NORMAL MODE

1. Change from Hotel TV mode to Normal TV mode

1. Keep TV and STB not interconnected.

2. Plug in the AC power cord.

3. Press the MASTER button on the Remote Replicator. The power is automatically turned on.

4. Select MENU, PPV TV and TV MODE in this order.

5. The Selecting Television Mode screen shows up. Select Normal TV.

6. The Password entry screen shows up. Using the Remote Control Unit, enter 2433.

7. [TV will power off after the TV mode change] appears. The power will be turned off automatically soon.

8. Now the set will be in Normal TV mode.

How to change from Hotel TV mode to Normal TV mode

Hotel TV mode

Power-OFF state

STB is not connected to TV.

YES

NO

Disconnect cable between STB and TV.

Insert AC cord in outlet.

Press MASTER button on Remote Replicator. *1

Press MENU button on Remote Controller. *2

Select [PPV TV] using Remote Controller. *2

Select [TV mode] using Remote Controller. *2

Select [Normal TV] using Remote Controller. *2

Enter PASSWORD 2433 using Remote Controller.

Wait until TV is turned off.

Change to Normal TV mode.

LC-32HT2U

5 – 19

2. Change from Normal TV mode to Hotel TV mode

1. Keep TV and STB not interconnected.

2. Plug in the AC power cord.

3. Press the POWER button on the Remote Controller to turn on the power.

4. Press the MASTER button on the Remote Replicator.

5. [TV will power off after the TV mode change] appears. The power will be turned off automatically soon.

6. Now the set will be in Hotel TV mode.

How to change from Normal TV mode to Hotel TV mode

Normal TV mode
Power-OFF state

STB is not connected to TV.

YES

NO

Disconnect cable between STB and TV.

Insert AC cord in outlet.

Press POWER button on Remote Controller. *2

Press MASTER button on Remote Replicator. *1

Wait until TV is turned off.

Change to Hotel TV mode.

*1: used option Remote Replicator [AN-H05RCU]
*2: used option Remote Controller [AN-32HTRC]

LC-32HT2U

6 – 1

LC-32HT2U

Service Manual

CHAPTER 6. TROUBLE SHOOTING TABLE

[1] TROUBLE SHOOTING TABLE

<Power supply>

No power supply (Front LED does not light up) and no power-up even is turned on (Front LED light up to blue)

Is the AC cord connected?

NO

Connect the AC cord and turn on the power.

YES

Are the harness and FFC connected properly?

NO

Connect the harness and FFC properly.

YES

Are F701 normal?

NO

If the fuse is blown when turning on the power after replacing F701, replace
VZ701, DS4701, F4701/F4702, F5701, Q4701/Q4702, Q5701, IC4701 and
IC5701, then recheck.

YES
Is the voltage of C4701/C4702/C4703 approx.
160V?

NO

Check if VZ701, R701, R702, R703 and DS4701 are normal.

YES
Is BU5V supplied?

NO

Do the primary side and secondary side of T5701 oscillate normally?

YES

YES

NO

Are F5702, D5705, IC5706 and D5717 out
of order?

Are there defective parts on the
primary side? Is the output on
the secondary side short-cir­cuited?

Are UR6V/UR10V/UR13V supplied?

NO

Does PS_ON (pin 1 of CN5702) become High (approx. 3.3V)?

YES

YES

NO

Check the regulator circuit of UR6V, recti­fier circuit of UR13V and DC/DC circuit of
UR10V.

Is the unit set to STANDBY
MODE2? Is the main unit nor­mal?

Is 24V supplied?

NO

Do the primary side and secondary side of T4701 oscillate normally?

YES

YES

NO

Are D4705/D4706 out of order? Are there defective parts on the

primary side? Is the output on
the secondary side short-cir­cuited?

Is PNL5V supplied?

NO

Does PNL_POW (pin 4 of CN5702) become High (approx. 3.3V)?

YES

Check the DC/DC circuit of PNL5V? Is the main unit normal?
Turn on the power again, and check if the unit
works normally.

Remarks

State of the set

PS_ON

(CN5702 )

PNL_POW

(CN5702 )

BU5V

(CN5702 )

UR6V

(CN5701 )

UR10V

(CN5701 )

UR13V

(CN5701 )

PNL5V

(CN5701 )

24V

(CN5703 )

STDBY

MODE1 High High 5V 6V 10V 13V 5V 24V
MODE2LowLow5V-----

Power ON High High 5V 6V 10V 13V 5V 24V

LC-32HT2U

6 – 2

No audio output during UHF/VHF reception

Is Video output during UHF/VHF reception normal? NO Check the tuner and RF-SW (UNT 501).

YES

Is SIF output from the tuner (TU1101_Pin3) normal? NO Check the tuner and peripheral circuits.

YES

Is input signal fed to pin 21 (SOUNDIF 1) of IC1401 (SIF Demod­ulator) normal?

NO Check the filter circuits (CF1101-3 and Q1102-3) and peripheral

circuits.

YES

Are audio signals from pins 29 and 30 (SC2_OUTL/R) of IC1401
to pins 51 and 52 of IC1403 (CODEC) normal?

NO Check between pins 29 and 30 (SC2_OUTL/R) of IC1401 and

pins 51 and 52 of IC1403 (CODEC).

YES
Are audio outputs (A-OUT_L/R) of pins 38 and 39 of IC1403 nor­mal?

NO Are the LRCK, BICK, SDTO and SDTI signals sent from IC1403

to IC1406 (DSP) normally?

YES

YES

Check IC1403 and peripheral circuits.

Is audio input from pins 38 and 39 of IC1403 to pins 11 and 15 of
IC2701(STEREO_AMP) normal?

NO Check the circuits between pins 38 and 39 of IC1403 and pins 11

and 15 of IC2701. (MUTE circuits: Q1306-8)

YES
Is audio output from IC2701 normal? NO Check IC2701 and peripheral circuits.

YES
Is the speaker switching circuit (T2701) normal?

YES
Check the connector (P2703) of IF_UNIT and around the speak-

ers.

No monitor audio output

Is monitor audio output set to “Variable”? YES Reset monitor audio output to “Fixed”.

NO

Are audio output pins 40 and 41 of IC1403 (CODEC) normal? NO Check IC1403 and peripheral circuits.

YES
Are audio output pins 7 and 1 of IC1407 (Buffer_AMP) normal? NO Check IC1407 and peripheral circuits.

YES
Check between IC1407 and MONITOR OUTPUT terminal (pins
10 and 16 of J502).

LC-32HT2U

6 – 3

No audio output from external input

<<INPUT-1>>
Is L-ch audio signal fed from pin 12 of input terminal J501 to pin 53 of IC1403?
Is R-ch audio signal fed from pin 18 of input terminal J501 to pin 54 of IC1403?
<<INPUT-2>>
Is L-ch audio signal fed from pin 10 of input terminal J501 to pin 57 of IC1403?
Is R-ch audio signal fed from pin 16 of input terminal J501 to pin 58 of IC1403?
<<HDMI>> [INPUT-3/INPUT4 (Digital audio mode)]
Is digital audio signal (HDMI_SPDIF) fed from pin 70 of IC1508 to pin 2 of IC1401?
<<HDMI>> [INPUT-4 (Analog audio mode)]
Is L-ch audio signal fed from pin 3 of input terminal J1501 to pin 59 of IC1403?
Is R-ch audio signal fed from pin 2 of input terminal J1501 to pin 60 of IC1403?
<<INPUT-5>>
Is L-ch audio signal fed from pin 2 of input terminal J1502 to pin 55 of IC1403?
Is R-ch audio signal fed from pin3 of input terminal J1502 to pin 56 of IC1403?

YES

No audio output during digital broadcasting reception

Are the I2S signals MCLK, SCLK, LRCK, and DATA sent
from pins N22, N19, N21 and M20 of IC8101 (PH1) nor­mally?

NO

Check around IC8101 PH1.

YES
Are input signals of pins 24 (MCLK), 11 (SCLK), 10
(LRCK), 32 (DATA) of IC1403 normal?

NO Check the circuits between pins N22, N19, N21 and M20 of

IC8101 PH1 and pins 24, 11, 10 and 32 of IC1403.

YES

Are audio signals from pins 29 and 30 (SC2_OUTL/R) of IC1401
to pins 51 and 52 of IC1403 (CODEC) normal?

NO Check between pins 29 and 30 (SC2_OUTL/R) of IC1401 and

pins 51 and 52 of IC1403 (CODEC).

YES

Are audio outputs (A-OUT_L/R) of pins 38 and 39 of IC1403 nor­mal?

NO Are the LRCK, BICK, SDTO and SDTI signals sent from IC1403

to IC1406 (DSP) normally?

YES

YES

Check IC1403 and peripheral circuits.

Is audio input from pins 38 and 39 of IC1403 to pins 11 and 15 of
IC2701(STEREO_AMP) normal?

NO Check the circuits between pins 38 and 39 of IC1403 and pins 11

and 15 of IC2701. (MUTE circuits: Q1306-8)

YES

Is audio output from IC2701 normal? NO Check IC2701 and peripheral circuits.

YES

Is the speaker switching circuit (T2701) normal?

YES

Check the connector (P2703) of IF_UNIT and around the speak­ers.

LC-32HT2U

6 – 4

<Composite video signal input> No video output (1)

No video output from external input <<INPUT-1>> Select INPUT-1 and the input signal on the input switching menu

screen.

Is INPUT-1 selected on the input switching menu screen? NO When INPUT-1 cannot be selected since the characters INPUT-1

on the menu screen are gray.

YES

Is the video signal detection function normal?
Check between pin 5 of J501 and pin 70 of IC501.

Is video signal fed to pin 65 of IC501 (AV SWITCH)? NO Check between pin 4 of J501 and pin 65 of IC501.

YES

Is video signal sent to pin 60 of IC501? NO Check IC501 (AV SWITCH) and peripheral circuits.

YES

Is video signal sent to pin 2 of IF_UNIT connector (FC_SC501)? NO Check between IC501 and SC501. (Q501, Q502, etc.)

YES

Is video signal fed to pin 2 of MAIN_UNIT connector
(FC_SC1101)?

NO Check the board-to-board cable “FC”.

YES
Is video signal fed to pin 242 of IC3301 (Trident) via L.P.F. com­posed of Q2201 and Q2207?

NO Check between IC501 and IC3301. (Q2201, Q2207, etc.)

YES
Are digital video (LVDS) signals sent from pins 28-31 and 34-37
of IC3301?

NO Check IC3301 and peripheral circuits.

YES
Check LCD_CONTROL PWB.

LC-32HT2U

6 – 5

<Composite video signal/S-video signal input> No video output (2)

No video output from external input <<INPUT-2>> Select INPUT-2 and the input signal on the input switching menu

screen.

Is INPUT-2 selected on the input switching menu screen? NO When INPUT-2 cannot be selected since the characters INPUT-3

on the menu screen are gray.

YES

Is the video signal detection function normal? Check between pin
2 of J501and pin 2 of IC501.
Is the S-video signal detection function normal? Check between
pin 6 of J503 and pin 6 of IC501.

Is signal fed to each input terminal of IC501 (AV SWITCH)?
<Composite video signal input>
Is video signal fed to pin 3 of IC501?

NO Check between pin 1 of J501 and pin 3 of IC501.

<S-video signal input>
Are Y and C signals fed to pins 5 and 7 of IC501 respectively?

NO Check between pins 3 and 4 of J503 and pins 5 and 7 of IC501.

YES
<Composite video signal input>
Is video signal sent to pin 60 of IC501?

<S-video signal input>
Are Y and C signals sent to pins 60 and 59 of IC501 respec­tively?

NO Check IC501 (AV SWITCH) and peripheral circuits.

YES
<Composite video signal input>
Is video signal sent to pin 2 of IF_UNIT connector (FC_SC501)?
<S-video signal input>

Are Y and C signals sent to pins 2 and 4 of IF_UNIT connector
(FC_SC501) respectively?

NO Check between IC501 and SC501. (Q501, Q502, Q503, Q504,

etc.)

YES
<Composite video signal input>
Is video signal fed to pin 2 of MAIN_UNIT connector

(FC_SC1101)?
<S-video signal input>
Are Y and C signals fed to pins 2 and 4 of MAIN_UNIT connector
(FD_SC1101) respectively?

NO Check the board-to-board cable “FC”.

YES
<Composite video signal input>
Is video signal fed to pin 242 of IC3301 (Trident) via L.P.F. com-

posed of Q2201 and Q2207?
<S-video signal input>
Are Y and C signals fed to pins 242 and 231 of IC3301 (Trident)
via L.P.F. composed of Q2201 and Q2207 and via L.P.F. com­posed of Q2205 and Q2209 respectively?

NO Check between SC1101and IC3301. (Q2201, Q2207, etc.)/

(Q2205, Q2209, etc.)

YES
Are digital video (LVDS) signals sent from pins 28-31 and 34-37

of IC3301?

NO Check IC3301 and peripheral circuits.

YES
Check LCD_CONTROL PWB.

LC-32HT2U

6 – 6

No video output during digital broadcasting reception

Is video signal sent to output terminal pin 4 of tuner (TU1101)? NO Check or replace the tuner's peripheral circuits.

YES
Is video signal fed to pin 7 of IC1103 (LEVEL ADJ)? NO Is control signal for level adjustment fed from pin 1 of IC1104 to

pin 6 of IC1103?

YES

NO

Check or replace IC1104 (CONTROL) and peripheral circuits.

Is video signal fed to pin 244 of IC3301 (Trident) via L.P.F. composed of Q2204 and Q2208?

YES

NO

Check between IC1103 and IC3301. (Q2204, Q2208, etc.)

Are digital video (LVDS) signals sent from pins 28-31 and 34-37
of IC3301?

NO Check IC3301 and peripheral circuits.

YES
Check LCD_CONTROL PWB.

LC-32HT2U

6 – 7

<Component video signal input> No video output (3)

No video output from external input <<INPUT-1>>

Is INPUT-1 selected on the input switching menu screen? NO Select INPUT-1 and the input signal on the input switching menu

screen.

YES

When INPUT-1 cannot be selected since the characters INPUT-1
on the menu screen are gray.

Is the component video signal detection function normal? Check
between pin 8 of J501 and pin 38 of IC501.

Are component video signals fed to pins 21, 23 and 25 (Y, PB
and PR) of IC501(AV SWITCH)?

NO Check between J1501 and each input pin of IC501.

YES
Are Y, PB and PR signals sent to pins 60, 59 and 58 of IC501
respectively?

NO Check IC501 and peripheral circuits.

YES
Are component video signals sent to pins 2, 4 and 6 of IF_UNIT
connector (FC_SC501)?

NO Check between IC501 and SC501. (Q501-Q506, etc.)

YES
Are component video signals fed to pins 2, 4 and 6 of
MAIN_UNIT connector (FC_SC1101)?

NO Check the board-to-board cable “FC”.

YES
Are Y, Pb and Pr signals fed to pins 246, 232 and 225 of IC3301

(Trident) respectively?

NO Check between SC1101 and IC3301. (Q2202, Q2203, Q2206,

etc.)

YES
Are digital video (LVDS) signals sent from pins 28-31 and 34-37
of IC3301?

NO Check IC3301 and peripheral circuits.

YES
Check LCD_CONTROL PWB.

LC-32HT2U

6 – 8

No video output from HDMI input (INPUT3)

INPUT3
Are signals fed from HDMI (SC1501) connector to input terminals

H_RX0± (pins 51 and 52), H_RX1± (pins 54 and 55), H_RX2±
(pins 57 and 58) and H_RXC± (pins 48 and 49) of IC1507
(TMDS_SW)?

NO

Is IC1501 (E

2

PROM) accessed with I2C when connecting HDMI

device and is DDC_I2C_CLOCK/DATA data read out?

YES

YES

NO

Check IC1501 and peripheral circuits.
Are cables connected securely?

Check the setting of HDMI device.

Are signals fed from IC1507 (TMDS_SW) to input terminals
H_RX0± (pins 54 and 55), H_RX1± (pins 58 and 59), H_RX2±
(pins 61 and 62) and H_RXC± (pins 50 and 51) of IC1508
(HDCP_LSI)?

NO Check IC1507 (TMDS_SW) and peripheral circuits.

For INPUT4, pin 21 is Low and pin 22 is High.
For INPUT5, pins 21 and 22 are Low and pin 23 is High.

YES
Are R/G/B and CLK/H/V/Data Enable signals sent from pins 92-

96, 99-105,108-111, 114-117, 121-124, 119 and 127-129 of
IC1508(HDCP_LSI)?

NO Check IC1508 (HDCP_LSI) and peripheral circuits.

YES
Are digital video (LVDS) signals sent from pins 28-31 and 34-37

of IC3301(Trident)?

NO Check peripheral circuits of IC3301.

YES
Check LCD_CONTROL PWB.

When using an old HDMI transmission device, some video formats cannot be selected or no sound is heard. Since this model conforms to the latest
HDMI standard, the HDMI transmission device does not recognize the data of the latest version correctly. It is necessary to upgrade its firmware.
Download the latest firmware from the website of each manufacturer, or contact the customer service center of each manufacturer.

LC-32HT2U

6 – 9

No video output from HDMI input (INPUT4)

INPUT4
Are signals fed from HDMI (SC1502) connector to input terminals

H_RX0± (pins 70 and 71), H_RX1± (pins 73 and 74, H_RX2±
(pins 76 and 77) and H_RXC± (pins 67 and 68) of IC1507
(TMDS_SW)?

NO

Is IC1502 (E

2

PROM) accessed with I2C when connecting HDMI

device and is DDC_I2C _CLOCK/DATA data read out?

YES

YES

NO

Check IC1502 and peripheral circuits.
Are cables connected securely?

Check the setting of HDMI device.

Are signals fed from IC1507 (TMDS_SW) to input terminals
H_RX0± (pins 54 and 55), H_RX1± (pins 58 and 59), H_RX2±
(pins 61 and 62) and H_RXC± (pins 50 and 51) of IC1508
(HDCP_LSI)?

NO Check IC1507 (TMDS_SW) and peripheral circuits.

For INPUT4, pin 21 is Low and pin 22 is High.
For INPUT5, pins 21 and 22 are Low and pin 23 is High.

YES
Are R/G/B and CLK/H/V/Data Enable signals sent from pins 92-

96, 99-105,108-111, 114-117, 121-124, 119 and 127-129 of
IC1508 (HDCP_LSI)?

NO Check IC1508 (HDCP_LSI) and peripheral circuits.

YES
Are digital video (LVDS) signals sent from pins 28-31 and 34-37

of IC3301 (Trident)?

NO Check peripheral circuits of IC3301.

YES
Check LCD_CONTROL PWB.

When using an old HDMI transmission device, some video formats cannot be selected or no sound is heard. Since this model conforms to the latest
HDMI standard, the HDMI transmission device does not recognize the data of the latest version correctly. It is necessary to upgrade its firmware.
Download the latest firmware from the website of each manufacturer, or contact the customer service center of each manufacturer.

LC-32HT2U

6 – 10

No video output from DVI input (INPUT 5)

DIGITAL mode Analog mode
Are signals fed from DVI (SC1503) connec-

tor to input terminals H_RX0± (pins 8 and

9), H_RX1± (pins 11 and 12), H_RX2±
(pins 14 and 15) of IC1507 (TMDS-SW)?

NO IS IC1505 (E2PROM) accessed with I2C

when connecting HDMI device and is
DDC_I2C_CLOCK/DATA data read out?

Are signal fed from pins 25, 26, 27 (Ana­log-R/G/B), and 28, 8 (H Sync/V Sync) of
input terminal (SC1503) to pins 226, 248,
233, 10, 11 of IC3301 (Video PROCES­SOR)?

YES

YES

NO

YES

NO
Check IC1505 and peripheral cir­cuits.Are cable connected
securely?

Check peripheral circuits of
IC3301.

Check the setting of DVI Device. Check LCD_CONTROL PWB.

Are signals fed from IC1507 (TMDS_SW) to input termi­nals H_RX0± (pins 54 and 55), H_RX1± (pins 58 and 59),
H_RX2± (pins 61 and 62) and H_RXC± (pins 50 and 51)
of IC1508 (HDCP_LSI)?

NO Check IC1507 (TMDS_SW) and peripheral circuits.For INPUT4, pin 21

is Low and pin 22 is High.For INPUT5, pins 21 and 22 are Low and pin
23 is High.

YES
Are R/G/B and CLK/H/V/Data Enable signals sent from
pins 92-96, 99-105,108-111, 114-117, 121-124, 119 and
127-129 of IC1508(HDCP_LSI)?

NO Check IC1508 (HDCP_LSI) and peripheral circuits.

YES
Are digital video (LVDS) signals sent from pins 28-31 and
34-37 of IC3301 (Trident)?

NO Check peripheral circuits of IC3301.

YES
Check LCD_CONTROL PWB.

When using an old HDMI transmission device, some video formats cannot be selected or no sound is heard. Since this model conforms to the latest
HDMI standard, the HDMI transmission device does not recognize the data of the latest version correctly. It is necessary to upgrade its firmware.
Download the latest firmware from the website of each manufacturer, or contact the customer service center of each manufacturer.

[FRONT-END SECTION]
Digital broadcasting cannot be received.

Are US_TS_CLK/PKTSYNC/DATA sig­nal supplied to pin (51), (59), (66) of
IC8601 respectively?

NO Are IF_OUT_P/N signal send from

pin (20), (21) of TU1101 respec­tively?

YES Check IC8601 and its peripheral cir-

cuits.

YES NO
Check the IC8101 and its peripheral cir­cuits.

Check the TU1101.

LC-32HT2U

6 – 11

No Picture/Sound signals of PPV come out

Is the PPV signal outputted to the following pins from the J10

(RJ-11) of PPV unit?

YES Is the PPV signal inputted to the following pins from the J10

(RJ-11) of PPV unit?

Pin (1): [TV_CLK], Pin (4): [TV_DATA] Pin (2): [MTI]

NO

NO

Check the Terminal External Box

Is the signal inputted to the following pin from P12 of connec-

tor of PPV unit?

YES Is the signal outputted to the following pin from P12 of con-

nector of PPV unit?

Pin (2): [RXD] Pin (1): [TXD]

NO NO

Check the Main unit Check the PPV unit

No PPV-Remote Control (R/C) signal of PPV comes out

Is the PPV signal outputted to the following pins from the J10 (RJ-11) of PPV unit?

Pin (6): [TVIR]

NO

Is the signal inputted to the following pin from P11 of connector of PPV unit?

Pin (1): [TVIR]

NO

Check the MAIN unit

LC-32HT2U

6 – 12

LED flashing timing chart for error notification

250ms

1sec

1) Red power LED Remarks

Remarks

Remarks

Error type Power red LED operation (1 cycle)

Error type Power red LED operation (1 cycle)

Error type Power red LED operation (1 cycle)

Pins are monitor microprocessor pins.

H: On

Lamp failure

Flashes once: Fast

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

Refer to "Power failure details".

Power failure

Flashes twice

communication failure

Refer to "Communication failure details".

with main CPU

Communication line failure or main CPU communication failure > Check debug statements for the main CPU.

Flashes 3 times

Vsync

Trident failure

Flashes 4 times

Monitor temperature failure

Flashes 5 times

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

Pins are monitor microprocessor pins unless otherwise specified.

13V/UR10V failure

Flashes once

Main 3.3V failure

Flashes twice

UR6V failure

Flashes 3 times

Digital 3.3V failure

Flashes 4 times

Panel 5V failure

Flashes 5 times

Main failure

Flashes 7 times

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

Initial communication

reception failure

Flashes once

Time-out setting reception failure

Start-up confirmation reception failure

Flashes twice

Regular communication failure

Flashes 3 times

The details are displayed in "ERROR STANDBY CAUSE" on page 1 of process A mode for the main microprocessor.

Initial communication from the main CPU is not received. (After canceling the reset, request for the monitor model No. is not received.)

ψ Communication line failure or main CPU start-up failure

Time-out setting and start-up mode change cannot be received from the main CPU. (Start-up communication until time-out setting and start-up mode change is not received.)

Basically, communication logs are analyzed by a bus monitor or debug print logs are analyzed.

ψ Main CPU start-up failure or monitor microprocessor's reception failure

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

ψ Main CPU operation failure or monitor microprocessor's reception failure

L_FL_ERR (pin 73): Abnormal L. Confirmed after 5 consecutive detections at 1 second intervals (detected only when the backlight is on).

Note that after five detection counts, the lamp cannot be activated except in the monitoring process. (For the first time, only the inverter is reset, and error OFF is not activated)

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

Main microprocessor detection error (FAN error, 1bitAMP error, etc.㧕

If error is detected during operation, error standby is activated by polling.

DET_PNL5V (pin 57): Abnormal (L). Panel power is not applied.

If error is detected during operation, error standby is activated by polling.

EU_POW

PS_ON

PANEL_POW

D_POW

D_POW

If error is detected during operation, error standby is activated by polling.

DET_6V (pin 27): Abnormal 㧔L). UR6V is not applied.

(MONITOR MAX TEMP on process A mode: Change of temperature failure AD value): Thermistor

DET_D3V3 (pin 62): Abnormal 㧔L). Digital 3.3V is not applied.

If error is detected during operation, error standby is activated by polling.

AC_DET (pin 31): Abnormal (L), DET_10V (pin 63). Main converter 13V/UR10V is not applied.

If error is detected during operation, the power is turned on again by interrupt handling (instantaneous blackout processing).

DET_3V3 (pin 64): Abnormal (L). Main power 3.3V is not applied.

VSYNC (pin 48) failure (uninput). Trident_IC operation failure.

Detected during operation (interruption)

If the panel temperature is 60°C or more for 15 seconds or more in a row, CAUTION appears on the OSD of AVC (flashes in red in the lower right screen).

If the panel temperature is 60°C or more for 25 seconds or more in a row, error standby is activated.

LC-32HT2U

7 – 1

LC-32HT2U

Service Manual

CHAPTER 7. MAJOR IC INFORMATIONS

[1] MAJOR IC INFORMATIONS

• IC8101 (RH-IXB145WJQZQ)

An LSI of a MPEG-2 system decoder that performs back-end processing for digital broadcasting. This is equipped with a CPU (processor core:
AM33-3), descrambler (DES), transport stream demultiplexer, video decoder (MPEG-2 MP @ HL compatible), graphic processor, audio decoder
(AC3 compatible), and an NTSC video encoder.

After receiving transport stream from the tuner, the LSI decrypts pay-TV broadcasts with the descrambler. Then using the demultiplexer, it sepa­rates and decodes the compressed audio and video data to send the signals. In the visual system, the graphic processor makes it possible to
overlap subtitles and perform scaling. Digital video signals (Y, Pb and Pr, or 480I/P, 720P and 1081I) and downconverted NTSC signals (Y/C and
composite, or 480I) can be sent simultaneously. As for the audio system, decoded AC3 audio can be overlapped with sound effects.

The LSI also contains various interfaces (I2C x 2, UART x 3, an SD Memory Card interface, a CableCARD interface, etc.) and a GPIO. Using
these interfaces, the CPU controls peripheral circuits of the tuner, SD Memory Cards, CableCARDs, etc. One of the UARTs is used by the CPU to
establish communications with the monitor microcomputer in the unit, where remote control information or other data is exchanged. Another UART
is used for RS-232C serial communications to connect the unit to a PC.

LC-32HT2U

7 – 2

—— MEMO ——

LC-32HT2U

8 – 1

LC-32HT2U

Service Manual

CHAPTER 8. OVERALL WIRING/BLOCK DIAGRAM

[1] OVERALL WIRING DIAGRAM

A

C

B

D

E

F

G

H

12345678910

PE

80 1

80 1

1

KM

LV

SH

1

6

SP

RA

1

1

12

71

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1
4

IF UNIT

MAIN UNIT

POWER
UNIT

LCD CONTROL UNIT

KM

KEY UNIT

QCNW-E257WJQZ

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U/V
TUNER

HDMI

R-AUDIO-L
INPUT 4

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14

QCNW-E249WJPZ

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DIGITAL AUDIO
OUTPUT

41

6

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P9701

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111

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SC1501

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P502

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P2602

14

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QCNW-E259WJQZ

HDMI

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OUTPUT

INPUT2

INPUT1

INPUT3

INPUT4

D1402

J1501

SCSC8

SD

SP-L

RS-232C
CONTROL

J1502

DVIAUDIO INPUT 5

SC150

DVI-I
INPUT5

P1103

P11

P12

P

J10

8

6

4

3

1

1

1

1

PPV UNIT

32

32

LC-32HT2U

8 – 2

10 11 12 13 14 15 16 17 18 19

1

SH

71

POWER
UNIT

AC IN

LA

10 1

SP-R

INVERTER
UNIT

61

To LAMP

To LAMP

To LAMP

To LAMP

To LAMP

To LAMP

To LAMP

To LAMP

LA

QCNW-E847WJQZ

CN7501

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CN2

02

LC-32HT2U

8 – 3

[2] SYSTEM BLOCK DIAGRAM

A

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9 – 1

LC-32HT2U

Service Manual

CHAPTER 9. PRINTED WIRING BOARD ASSEMBLIES

[1] MAIN Unit

A

C

B

D

E

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12345678910

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LC-32HT2U

9 – 2

10 11 12 13 14 15 16 17 18 19

LC-32HT2U

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R2020

C8461

R8160

R2018

R8161

R8475

R2012

C2006

R8117

TP2004

R2024

R2023

TP8111

R8209

R2025

C2009

R8208

R2026

TP8113

TP8114

R2027

TP8119

TP8118

X2001

R2028

TP2005

R8126

TP8104

R2029

R8127

TP8103

R8143 R8144

C2011

C8106

R8145 R8146

R2034

FL2001

IC2002

C8117

TP8106

TP2010

R8153

L8101

C8116

R8149

R8151

R2039

C8123

TP8105

R8154

C8122

D2003

TP2003

R8155

TP2013

R2041

R2050

TP2012

C2013

C2016

R9224

TP2011

R2042

R2054

R2056

R2055

R8113

R2048

C2017

C2018

TP2014

R2071

R2049

R2043

R2044

R2047

R2046

C2020

R2062

R2060

R2061

R2063

IC9201

R2066

C2022

R2064

R2059

R9225

R8115

C9202

IC2005

IC2004

R9226

IC2003

R9230

C2021

C2019

C2025

R9227

R2005

R9228

R9229

FL9201

R2065

R9302

C8314

C8318

TP9106

R8338

C8323

R8291

R8366

R8293

R8365

C8322

R8369

R8370

C8325

C8312

C9648

FB8101

FB8102

R8317

C8120

C9647

R8311

R8390

R8394

R9638

R8393

R8389

R8310

C8405

C8408

R8406

R8404

C8136

R8198

C8409

C8406

FL8402

IC8101

IC8401

C8404

C8407

R8125

R8403

FL8401

R8405

TP8115

R8402

R8410 R8409

R8103

FL8403

X8401

R8102

D8101

R8114

TP8116

C8402 C8403

D8102

R8120

TP8108

R8183

R8206

R8212

R8129

R9206

R9205

R9203

R8132

R8137

R8188

R8182

R8177

R8130

R8123

R9210

R8106

R8180

R8178

R9204

TP8112

TP8107

TP8102

R8167

R8171

P9202

R8186

R8128

R8169

R9209

R8107

R9207

TP8110

R9208

TP8109

R9202

TP8101

R9006

C8613

FB1408

C8611

FB8604

C8661

C1482

C1477

FB8602

C8660

C8612

C8610

C8659

FB1402

R1489

C8656

X1402

R1472

FB8608

Q1401

C8675

C8674

C8654

C1473

R1496 R1495

C1474

R1466

C8653

C8651

FB8601

C8607

C1469

C8602

C8601

R1490

C8648

C1459

C8614

C8670

C8646

IC1406

C1468

C8631

R1479

C8644

C1462

R1476

R1475

C8640

R8619

X8601

R1471

R8614

C8638

C8639

FB1406

R8613

FB1405

C8637

C8634

L8608

R1404

C8626

C8629

C8630

L8606

L8607

C8627

C1436

C1434

C8620

C8621

L8604

L8605

R1459

R1455

R1444

X1401

C8615

L8603

C1484

R1433

R1408

C1483

L8601

L8602

C1424

C8608

C1453

C8609

R1416

R1417

R1414

R1415

IC1403

R1411

R1412

C1452

C1454

C1407

C1449

C1401

R1456

R1425

R1409

R1468

C1451

C1448

R1424

R1447

R1440

R1443

R1436

C1447 IC1401

R1422

C1416

C1481

C1404

C1408

C1409

C1471

C1410

C1402

C1406

C1411

C1106

C1119

C1107

C1109

C1124

R1317

R1318

SC1101 SC1301

FDC1

C1310

C1306

LUG1102

R1403

R1406

R1427

C1417

C1418

D1307

C1421

R1304

C1422

D1301

R1310

IC1301

C1420

C1419

R1407

C1414

C1423

P1301

C1412

C1301

D1302

R1301

R1320 R1321

C1307

R1319

D1305

IC1302

D1311

R1313

Q1302

D1310

R1312

C1304

C1302

C9701

C1463

C1464

D9606

P9702

R9624

C9618 D9605

L9601

C9705

D9603

C9704

C9615

C9609

R9615

R9616

P9701

IC9602

C9619

C9614

R9619

R9618

C9703

C9612

D9604

C9613

C9702

Q9605

R9607

R9605

R9610

R9604

R9601

Q9606

R9606

R9603

R9602

Q9604

C9656

Q9603

R9645 R9634

C9640

R9644

C9629

R9635

R9642

R9632

C9641 C9630

C9642 C9631

R9639

C9639

R9640

R9643

R9629

C9628

R9630

R9633

R9628

LUG1105

IC9607

IC9606

C9645 C9634

C9635

C9646

C9637

C9651

C9650

R9637

R9647

R2613

Q9602

Q9601

C9636

R2612

P2603

R2611

L9603

L9602

LC-32HT2U

9 – 5

A

C

B

D

E

F

G

H

12345678910

MAIN Unit
(Side-B)

LC-32HT2U

9 – 6

10 11 12 13 14 15 16 17 18 19

LC-32HT2U

9 – 7

A

C

B

D

E

F

G

H

12345678910

TL1128

TL1131

TL1135

TL1129

TL1133

TL1132

TL1136

TL1130

TL1134

TL8709

R8707

R8706

C8702

TL8704

IC8701

FB8701

TL8701

TL8702

C8703

C8701

TL8703

R8708

R8705

TL8707

TL8705

TL8708

R8704

TL1102

TL1103

R8713

R8703

TL8710

R8701

R8702

TL8712

TL8713

TL8706

TL8711

TL9041

TL9040

TL9039

TL1121

TL1101

TL1185

TL1126

C1112

TL1538

C1114

R1118

IC1102

TL9042

C1113

TL1539

TL9035

TL9036

E9201

TL9013

TL9037

TL9038

TL1543

TL1541

TL9019

TL1542

TL1120

TL1125

TL1124

TL1540

TL9026

TL9028

TL9030

TL9032

TL9025

TL9027

TL9029

TL9031

TL1407

TL9024

L1402

TL1408

R1460

C1480

D1401

C1478

TL1404

Q1402

R2021

D1403

C8538

R1438

IC1408

IC8504

R8502

R8501

C8539

Q8502

R2011

R2014

C1487

Q8501

R8579

C8536

R8553

R8557

R8556

R8555

R8568

R8576

R8552

R8575R8577

R8546

R8547

R8554

R8548

R2040

TL8515

R8543

R2069

R8544

Q2005

TL8520

R8536

R2068

TL8519

TL8516

R8537

R2051

C2015

C2014

R2052

R8530

Q2004

R8528

R85

TL8517

R8

TL8514

R8527

R8453

Q8452

Q8451

R8452

R8451

R8111

R8469

R8104

R8109

FL8101

R2006

D8451

R2076

R8110

C8118

TL8452

R2036

R2001

R2038

R8152

Q2007

R2037

R8150

C8115

C2012

TL8103

TL2001

C8111

R8147

R2035

C8108

C8110

C8107

R2007

C2003

R8148

R2030

TL8124

C2010

C8105

R8141

R8142

TL8801

TL8451

TL8123

C2002

R2017

R2015

IC2008

R8172

R8116

R2003

R8213

IC2001

Q2006

FL8106

R2016

R8165

R8211

C2026

Q2001

R2022

C2008

R8193

R8174

R8163

R2254

R8162

FL8104

R8133

R8136

R8138

R8214

C2004

C2005

R2010

R8164

R9016

R8190

R9005

R8118

R8173

FL8103

R9017

TL8456

TL9010

TL9020

TL9009

TL9008

C8667

C8668

C8669

R8628

TL9007

TL9016

TL9006

C8662

C8663

C8664

C8665

C8666

TL9005

TL9014

TL9003

TL9012

TL9002

R8624

R8626

R8631

R8627

TL9011

R8630

R1109

TL8606

TL8607

R9013

R8623

R8625

C1136

R8629

R8622

Q1104

R8621

R8638

TL8604

FB1101

TL8605

Q1105

R9014

R1103

TL8603

Q9003

R1104

TL8602

R9012

C9006

R9015

R1117

R1116

R8620

TL8601

R1141

R8633

C8647

R1124

R1121

FB8606

R8607

C8641

R8636

Q1108

R8637

C8636

C8635

C1132

C8633

C1117

C8603

FB8605

R8601

TL8610

R8605

IC1101

TL8608

TL8609

R1114

Q8601

R1134R1139

C1133

C1108

C1134

C1135

R1115

C1104

R1105

R1111

TL1104

TL1106

TL1107

TL1109

TL1110

TL1111

TL1112

TL1113

TL1114

TL1115

TL1116

TL1117

TL1118

TL1119

TL1122

TL1123

TL1105

TL1108

R1142

R1122

R1127

Q1109

CF1101

Q1102

R1143

R1106

R1133

C1123

Q1103

R1110

C1121

R1160

C1127

R1131

R1130

R1129

TL1138

TL1142

TL1127

TL1151

TL1156

TL1160

TL1168

TL1173

TL1140

TL1144

TL1147

TL1158

TL1162

TL1171

TL1170

TL1153

TL1149

TH2001

TL1137

TL1141

TL1145

TL1157

TL1161

TL1169

TL1174

TL1139

TL1143

TL1155

TL1159

TL1163

TL1172

TL1146

TL1152

TL1329

TL1327

TL1325

TL1324

TL1318

TL1315

TL1148

TL1176

TL1328

TL1326

TL1321

TL1150

TL1317

TL1175

TL1154

TL1319

TL1316

TL1322

TL1320

TL1323

TL1330

TL1331

Q1307

Q1308

R1446

R1442

R1421

R1499

R1497

R1419

R8823

R8822

R1491

C1432

C8823

C8822

C1429

C1475

C8821

C8820

R8821

R8820

C1479

C8819

R1487

IC1407

R1452

R8818

C8818

R8816

R8814

R1448

IC8803

R8815

R8812

R1492

R8813

C1405

R1418

R8809

R8810

R1500

R1480

R1462

R1458

R1454

R1451

R1432

R1429

R1423

R1426

C8814C8813

C1403

C1470

R1498

C1476

R1401

C8809

C8810

R1494

C1460

R1488

R1484

R1402

R1405

C1486

R2234

D1303

C8807

R1441

C1485

R1481

C1457

R1445

R8833

R1482

R1449

C1461

C8805

C8808

R1478

FB8801

C1458

R1413

R8807

R1483

TL1403

R1467

C1440

IC8801

R1437

C1431

C8804

C8806

R1410

C1430

R1420

R8834

R8802

C8801

R8805

R8825

C8803

R8832

R8803

R8804

C8802

R8801

FL8801

R8826

FL8802

R8827

R1463

IC1404

C1450

R1465

L1401

C8616

R1469

FB8607

IC1405

C1446

R9703

C9710

R1470

IC9703

TL9721

C9712

C8671

C9713

FB8603

TL9722

IC9702

IC2007

C2024

L8102

TL9723

TL9207

TL9202

TL8453

TL9221

TL9203

R9714

TL9222

IC9705

C8119

R9715

C9717

TL9224

TL9204

R8168

TL9240

R8124

R8121

TL8105

R8170

TL9241

TL9206

R8506

R8179R8194

R8185

TL9390

R8122

R8131

R8108

TL9720

R8175

R9701

R8105

R8176

R8134

FL8105

TL9239

TL9223

R8166

R8187

R8191

TL8104

R8159

R8192

R8204

R8181

R9702

IC9701

R8101R8139

C8101

C8102

R8201

R8140

C8103

R8210

R9201

TL9205

C8138

R8412

C8139

R8401

C8401

C8104

R9641

C9643

C8112

C8109

C8114

C8135

C8113

C8133

C8137

C8121

R8315

TL9603

R8316

C8134

R9631

C9632

FB9705

FB9703

TL9709

TL9705

C9707

FB9704

TL9710

R9713R9712

TL9716

TL9703

TL9724

TL9702

TL9717

TL9711

C9714

TL9715

TL9708

FB9701

TL9718

TL9712

E9204

C9709

R9705

TL9601

TL9706

D9701

TL9713

TL9602

D9608

D9610

Q9701

R9704

C9711

TL9719

R9625

R9626

TL9707

TL9714

Q9702

D9607

D9609

D9702

FB9702

TL9701

C9706

C9708

Q1304

R1316

C1305

R1323

D1312

C1308

R1305

R1311

D1309

IC1303

Q1303

Q1301

R1303

R1307

R1306

Q1306

D1308

TL1302

TL1308

R1314

R1315

TL1303

C1303

TL1310

TL1309

D1306

R1308

R1302

TL1313

R1322

TL1166

TL1305

D1304

R1309

TL1304

TL1306

TL1311

TL1307

TL1314

C8811

R8808

R8811

C8817

IC8802

FB1301

C8815

L8801

C8812

FDC2

MAIN Unit
(Side-B Chip)

LC-32HT2U

9 – 8

10 11 12 13 14 15 16 17 18 19

504

R2011

R2014

Q8501

R8579

C8536

R8553

R8557

R8556

R8555

R8568

R8576

R8552

R8575R8577

R8546

R8547

R8554

R8548

R2040

TL8515

R8543

R2069

R8544

Q2005

TL8520

R8536

R2068

TL8519

TL8516

R8537

R2051

C2015

C2014

R2052

R8530

Q2004

R8528

R8539

TL8517

R8559

TL8514

R8527

R8505

TL8518

C8527

TL8513

R8533

IC8503

TL8512

R8534

R8540

TL8511

R8526

C8524

R8525

TL8509

TL8508

C8521

R8520

TL8507

R8521

TL8506

R8523

R8516

R8515

R8524

C8519

R8504

TL8510

C8451

R8508

R8512

C8505

R8507

C8506

R8531

TL8502

TL8505

TL8503

X8501

TL8504

TL8501

IC8505

R8560

R8580

R9104R8551

C8540

R9123

TL9375

TL9320

TL9322

R9122

TL1533

R9108

TL9324

C9106

R9130

TL9326

TL9331

R1554

TL9333

TL9327

TL9329

D1518

R9118

TL1532

TL1502

TL1507

TL1504

R1553

R9129

C9108

D1517

C9107

R1552

TL1531

TL1503

TL1505

TL1521

D1516

TL9335

TL1506

D1504

TL9382

TL1515

TL9330

TL9378

TL9381

TL1514

R1637

TL9317

TL9336

TL9328

TL9321

TL1501

D1524

TL9380

TL9342

TL9357

Q1516

R1645

TL9316

TL9340

TL9351

TL9359

TL9384

TL9383

TL9338

TL9355

Q1517

TL9310

TL9337

TL9341

TL9352

TL9353

TL9354

TL9302

TL9343

TL9339

TL1516

C1535

C1534

R1590

C1533

Q1512

R1583

R1584

FB1515

C1532

C1538

D1520

R1591

C1591

C1589

C1608

C1583

C1582

R1588

R1589

FB1512

C1634

C1633

R1586

R1587

TL1536

C1592

C1597

TL1524

R1585

C1577

C1602

R1602

D1522

C1573

C1571

FB1519

C1581

C1584

C1607

C1611

Q1513

IC1505

C1570

C1568

C1616

C1615

C1559

C1593

C1547

C1548

C1572

C1574

C1539

D1521

L1530

C1569

C1567

TL1517

C1545

C1546

C1614

C1613

C1517

C1553

R1547

C1542

R1593

C1555

C1558

TL1511

TL8454

Q1504

C1519

R1556

R1533

TL1523

R1545

R1546

R1594

TL1522

R1605

R1530

Q1503

R1598

R1531

TL8455

C1579

C1586

C1578

R1597

R1527

TL1510

R1596

R1604

R1537

R1542

R1543

R1535

R1536

R1539

R1540

TL1512

C1587

R1534

R1538

TL1520

TL1513

C1516

D1513

D1515

C1515

FB1510

IC1502

IC1501

FB1511

D1509

C1513

C1514

D1505

D1506

TL1519

TL1535

TL1518

TL1534

R1532

D1510

Q1515

Q1514

D1503

D1502

TL1508

TL1537

TL1509

KAME002

KAME001

E9203

TL9033

TL9034

R9008R9009

TL9043

TL2002

TL2004

C2029

C2027

C2028

TL2003

TL2005

FB2005

FB2003

C3391

FB2004

R3391

C3406

TL3312

TL9048

R9026

R9025

C3405

TL3313

C3404

C3393

C9007

R9024

R3392

C3402

C3403

C3400

IC9004

C3401

C3397

C3396

C3398

C3399

FB3310

C9003

R1620

R1621

TL9250

R1622

TL1527

TL1528

TL1529

FL1501

C1575

C1624

C1623

R1624

C1625

C1626

R1623

TL1530

C1627

C1628

C1630

C1629

C1631

C1601

C1632

C1606

C1609

FB1521

C1580

C1594

C1576

FB1522

TL9242

FB1518

TL9243

TL9244

C1557

TL9245

TL1526

TL9246

C1566

TL1525

TL9247

TL9248

TL9249

TL9379

TL2007

TL2006

TL9312

TL2008

TL9319

TL9323

TL9332

TL2009

TL9318

TL9325

TL9334

TL9315

TL2010

E9202

TL9314

TL9311

TL2011

TL2012

TL2013

TL9313

C9105

TL9301

TL2014

R9116

C9101

IC9101

C8320

TL9103

R9113

TL1164

R9107

R9112

R8345

TL9101

TL9104

C9104

TL9102

C8316

R9109

R9102

R9101

R8368

IC8302

R9117

TL9105

R8371

TL9344

TL9345

R8468

TL9346

IC8451

TL9347

C8453

TL9348

TL9349

R8467

TL9350

C9201

C8452

R8395

R8312

R8391

R8453

Q8452

Q8451

R8452

R8451

R8111

R8469

R8104

R8109

FL8101

R2006

D8451

R2076

R8110

C8118

TL8452

R2036

R2001

R2038

R8152

Q2007

R2037

R8150

C8115

C2012

TL8103

TL2001

C8111

R8147

R2035

C8108

C8110

C8107

R2007

C2003

R8148

R2030

TL8124

C2010

C8105

R8141

R8142

TL8801

TL8451

TL8123

C2002

R2017

R2015

6

R8412

C8139

R8401

C8401

C8104

R9641

C9643

C8112

C8109

C8114

C8135

C8113

C8133

C8137

C8121

R8315

TL9603

R8316

C8134

C9644

R9646

R8392

R8313

R8309

R8308

R8304

R8307

R8314

R8396

R8302

R8157

R8301

R8306

R8305

C8124

R8303

R8156

C8125

TL9604

C9649

C9638

C8319

C8311

R8372

C8317

C8326

IC9604

C8313

C8321

R8367

C8315

R8292

C9625

C8324

R8290

R8351

R8346

R9620

R9622

R8322

C2232

R8318

R8323

R2205

R2208

R8319

C8301

C2230

C2229

R8324

R2201R2204

R8320

R8325

R2217

R8321

R2206

R2202

R2210

Q2205

Q2201

Q2204

R2213

Q2202

R2221

R2214

R2215

R2219

R2209R2212

C2208

C2233

C2231

C2202C2203

C2209

C2204

C2205

L2203

L2201

L2202

R2207

R2203

R2218

R2216

C2234

C2210C2206C2207

Q2209

Q2203

Q2206

Q2207

Q2208

R2224R2211

R2220

R2222

R2223

TL3323

TL3321

FB3303

FB3304

TL3320

TL3322

R3304

R3305

R3407

R3408

TL3327

R3306

R3303

TL3325

TL3326

TL3328

TL3324

C3336

C3339

R3317

R3318

C3329

C3330

C3325

C3327

R9103

R3314

R3406

R3405

C3340

R3403

C3426

C3332

C3428

C3335

C3338

C3419

C3318

C3314

C3337

C3319

C3320

C3324

C3331

C3323

C3342

TL3314

R3404

C3422

C3341

R3319

R3323

C3343

C3304

C3305

C3307

R3325

R3326

TL3315

TL3316

R3324

R3320

TL3317

C3412

C3344

L3302

L3303

L3301

C3429

C3345

TL3318

R3412

C3347

TL9605

C3352

C3351

C3348

C3353

C3354

C3413

C3356

C3355

R3332

R3331

C3430

C3349

C3357

C3359

C3358

C3360

C3414

C3361

C3437

C3431

C3434

C3438C3433

C3432

C3372

C3370

C3365

C3368

C3364

C3435

C3367

C3369

C3436

C3418

C3366C3416

C3371

C3415

C3417

C3362

TL3319

FB3308

R3436

R3340

R3333

FL2607

TL2608

R2610

TL2607

R2608

TL2606

FL2605

TL2613

TL2605

FL2603

TL2604

TL2603

R2606

TL2602

TL2618

TL2611

R2603

TL2612

TL2614

TL2615

FL2601

R2604

TL2616

R2605

TL2617

FL2602

TL2601

TL9608

C9626

C9627

TL9004

IC9605

C9001

C9002

IC9003

R9022

R9023

R9020

R9021

R9019

TL9047

TL9607

R9002

R9003

R9621R9623

TL9015

FB9001

D9001

TL9017

C9008

TL9045

FB9002

C9624

TL9046

C9009

IC9005

IC9603

R9029

R9028

R9027

TL9049

FL2608

C2602

TL2609

TL2622

FL2609

C2603

TL2610

TL2619

C2604

FL2610

TL9606

TL2621

TL2620

R9636

C9633

R9631

C9632

LC-32HT2U

9 – 9

[2] IF Unit

A

C

B

D

E

F

G

H

123456

IF Unit (Side-A)

LC-32HT2U

9 – 10

A

C

B

D

E

F

G

H

123456

IF Unit (Side-A Chip)

J502

FB517

FB516

FB512

FB514

FB513

FB515

R530

R528

R525

R524

R520

R529

C574

R522

R521

R523

C573

R526

R527

LUG503

C517

C516

C512

C513

C514

C515

C532

R550

D514D513

D517

R551

C533

R552

R554

D516

R553

R555

C534 C536

D515

C535

C537

R556

R557

R602

R558

D7506

D7505

FB7504 R7517

SC7501

FB7501 R7518

D7503 D7504

FB7502 R7516

R7513

FB7503 R7515

R7512

FB7506

C7507

IC7501

C7501

C7505

C7502

C7503

R7510

C7504

C7506

UNT501

Q511

P502

kame2

LUG504

C2735

T2701

D2709

C2745

Q2702

C2732

C2736

D2707

D2708

R2716

R2714

C2730

C2728 C2727

L2704

L2703

D2704 D2703

C2720

R2719

C2708

FB2704

C2723

C2740

R2711

R2712

FB2709

C2742

C2739

FB2710

kame1

C2733

Q2701

C2724

C2722

C2738

P2703

FB2711

C2734

C2719

R2715

R2705

C2737

FB2712

C2718

C2741

C2716

IC502

C560

C563

R599

R598

C559

L501

C562

C561

R600

R582 R584

R585

Q505

R583

Q506

R581

R586

R576 R578

C549

R579

Q503

R577

Q504

R575

R580

C552

R570 R572

C548

C553

FB520

R573

C546 C551

Q501

R571

R569

Q502

R574

C550

R592

C554

C547

Q509

R593

C557

R591

R590

R560

C538

R559

C539

C540

Q507

R561

R562

R589

D518

R563

Q508

C541

R564

R565

D519 R603

R566

IC501

R604

R609

R608

C543

C545 R607

C544 R601

R567

LUG501

R568

R547

C542

C523

R542 R606

R546

R545

C530

R544

C529

C527

C526

C564

R543

C525

R541

R540

R539

R610

R538

R537

R536

R605

D512

C531

R549

R548

D511

D510

C521

D509

C524

C569

C528

C505

C504

C508

C507

C506

C501

R501

D505

C511

D504

C510

C509

C570

R509

R507

C558

C572

R515

R512

C571

R511

R510

R508

R502

R504

R506

D501

FB506

FB505

FB504

R518

R519

R517

R514

R516

R513

FB511

FB510

FB509

FB508

FB507

J501

J503

FB518

FB519

R535

D508

D506

C518

R534

R533

C519

D507

R532

C520

C522

R531

FB501

FB503

FB502

D503

D502

LUG502

C502

R505

C503

R503

SC502

C556

R588

C555

R587

R594

SC501

C566

C568

C567

C565

k001

LUG2701

P2704

C2703

R2702 R2701

C2705 C2704

C2713

C2710

C2707 C2706

R2709 R2707FB2706

R2704

C2711

V1

R2708 R2706 C2717

C2701

FB2702

FB2703

FB2701

C2702

IC2701

C2709

C2712

C2714

R2710

R2703

C2721 C2715

D2702 D2701

L2702

L2701

C2726 C2725

R2713 C2729

D2706 D2705

C2731

LUG2702

C2744

R2720

R2721

LC-32HT2U

9 – 11

[3] PPV Unit

A

C

B

D

E

F

G

H

123456

TL14

3

1

TL15

LUG10

D11

TL18

TL17

TL16

D14

R15

R16

D12

R14

D13

IC11

C11

C12

C13

TL23

C14

R17

P11

LUG11

TL22

R11

R13

R12

R24

TL21

C16

IC10

X10

C15

D10

D15

TL20

TL11

TL13

R10

TL10

TL19

TL12

TP13

P12

C10

R23

TL24

R19

TP14

TL25

R20

P10

4

PPV Unit (Side-A)

PPV Unit (Side-A Chip)

LC-32HT2U

9 – 12

[4] R/C, LED Unit

A

C

B

D

E

F

G

H

123456

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

P101

R102

C101

R114 R103

R113

Q104

R115

RMC101

SLD101

R101 C102

D101

IC101

C104

C103

R105

R104

D102

R106

R110

Q101

R111

Q103

R112

D103

R107

R108

R109

Q102

3

LC-32HT2U

9 – 13

[5] KEY Unit

A

C

B

D

E

F

G

H

123456

KEY Unit (Side-A)

LC-32HT2U

10 – 1

LC-32HT2U

Service Manual

CHAPTER 10. SCHEMATIC DIA-

GRAM

[1] DESCRIPTION OF SCHEMATIC DIA­GRAM

1. VOLTAGE MEASUREMENT CONDITION:

1) The voltages at test points are measured on exclusive AC adaptor
and the stable supply voltage of AC 120V. Signals are fed by a
color bar signal generator for servicing purpose and the above volt­ages are measured with a 20k ohm/V tester.

2. INDICATION OF RESISTOR & CAPACITOR:

RESISTOR

1) The unit of resistance "Ω" is omitted.

(K=kΩ=1000Ω, 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.

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.

AVIS DE SECURITE IMPORTANT:

LES PIECES MARQUEES " " ( ) SONT IMPOR­TANTES POUR MAINTENIR LA SECURITE DE L'APPAREIL.
NE REMPLACER CES PIEDES QUE PAR DES PIECES DONT LE
NUMERO EST SPECIFIE POUR MAINTENIR LA SECURITE ET
PROTEGER LE BON FONCTIONNEMENT DE L'APPAREIL.

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•MAIN Unit-4/22

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10 11 12 13 14 15 16 17 18 19

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10 – 10

•MAIN Unit-5/22

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•MAIN Unit-6/22

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10 – 14

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10 11 12 13 14 15 16 17 18 19

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10 – 16

•MAIN Unit-8/22

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10 – 17

10 11 12 13 14 15 16 17 18 19

LC-32HT2U

10 – 18

•MAIN Unit-9/22

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D

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F

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LC-32HT2U

10 – 19

10 11 12 13 14 15 16 17 18 19

LC-32HT2U

10 – 20

• MAIN Unit-10/22

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D

E

F

G

H

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LC-32HT2U

10 – 21

10 11 12 13 14 15 16 17 18 19

LC-32HT2U

10 – 22

• MAIN Unit-11/22

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B

D

E

F

G

H

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LC-32HT2U

10 – 23

10 11 12 13 14 15 16 17 18 19

LC-32HT2U

10 – 24

• MAIN Unit-12/22

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D

E

F

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H

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LC-32HT2U

10 – 25

10 11 12 13 14 15 16 17 18 19

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10 – 26

• MAIN Unit-13/22

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F

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10 – 27

10 11 12 13 14 15 16 17 18 19

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10 – 28

• MAIN Unit-14/22

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10 – 29

10 11 12 13 14 15 16 17 18 19

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10 – 30

• MAIN Unit-15/22

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D

E

F

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10 – 31

10 11 12 13 14 15 16 17 18 19

LC-32HT2U

10 – 32

• MAIN Unit-16/22

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10 – 33

10 11 12 13 14 15 16 17 18 19

LC-32HT2U

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10 – 35

10 11 12 13 14 15 16 17 18 19

LC-32HT2U

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• MAIN Unit-18/22

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