Sony FWD-42PX2 Schematic

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Page 1

FLAT PANEL DISPLAY

FWD-42PX2

REMOTE COMMANDER

RM-980

SPEAKER SYSTEM

SS-SP42FW

SERVICE MANUAL 1st Edition

Page 2

! WARNING

This manual is intended for qualified service personnel only. To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.

! WARNUNG

Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt. Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung dazu besitzen.

! AVERTISSEMENT

Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien. Afin de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres. Pour toute réparation faire appel à une personne compétente uniquement.

FWD-42PX2

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CAUTION

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type

recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

ADVARSEL!

Lithiumbatteri-Eksplosionsfare ved fejlagtig

håndtering.

Udskiftning må kun ske med batteri

af samme fabrikat og type.

Levér det brugte batteri tilbage til leverandøren.

ADVARSEL

Lithiumbatteri - Eksplosjonsfare.

Ved utskifting benyttes kun batteri som

anbefalt av apparatfabrikanten.

Brukt batteri returneres

apparatleverandøren.

Vorsicht!

Explosionsgefahr bei unsachgemäßem Austausch

der Batterie.

Ersatz nur durch denselben oder einen vom

Hersteller empfohlenen ähnlichen Typ . Entsorgung

gebrauchter Batterien nach Angaben des

Herstellers.

ATTENTION

Il y a danger d’explosion s’il y a remplacement

incorrect de la batterie.

Remplacer uniquement avec une batterie du même

type ou d’un type équivalent recommandé par le

constructeur.

Mettre au rebut les batteries usagées conformément

aux instructions du fabricant.

For the customers in the Netherlands Voor de klanten in Nederland

VARNING

Explosionsfara vid felaktigt batteribyte.

Använd samma batterityp eller en likvärdig typ

som rekommenderas av apparattillverkaren.

Kassera använt batteri enligt gällande

föreskrifter.

VAROITUS

Paristo voi räjähtää jos se on virheellisesti

asennettu.

Vaihda paristo ainoastaan laitevalmistajan

suosittelemaan tyyppiin.

Hävitä käytetty paristo valmistajan ohjeiden

mukaisesti.

Hoe u de batterijen moet verwijderen, leest u in de tekst van deze handleiding.

Gooi de batterij niet weg maar lever deze in als klein chemisch afval (KCA).

FWD-42PX2

Für Kunden in Deutschland

Entsorgungshinweis: Bitte werfen Sie nur entladene Batterien in die Sammelboxen beim Handel oder den Kommunen. Entladen sind Batterien in der Regel dann, wenn das Gerät abschaltet und signalisiert “Batterie leer” oder nach längerer Gebrauchsdauer der Batterien “nicht mehr einwandfrei funktioniert”. Um sicherzugehen, kleben Sie die Batteriepole z.B. mit einem Klebestreifen ab oder geben Sie die Batterien einzeln in einen Plastikbeutel.

1 (P)

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1. Service Overview

1-1. Appearance Figure ..........................................................1-1

1-2. Board Location ...............................................................1-1

1-3. Disassembly ....................................................................1-2

1-3-1. Rear Cabinet Assembly .........................................1-2

1-3-2. Bezel Assembly/H1 Board/H2 Board ...................1-3

1-3-3. A Board/L Board/I Board......................................1-4

1-3-4. G Board/TEMP Board...........................................1-5

1-3-5. T-R Board/T-L Board............................................1-5

1-3-6. A Block Assembly/DC Fan ................................... 1-6

1-3-7. Y-DRV Board/Y-SUS Board ................................1-7

1-3-8. CTRL Board ..........................................................1-8

1-3-9. Z-SUS Board .........................................................1-8

1-3-10. XL Board/XR Board .............................................1-9

1-3-11. Plasma Display Panel ..........................................1-10

1-4. Service Position ............................................................1-11

1-4-1. Service Position of A Board ................................1-11

1-5. Packing of the Plasma Display Panel ...........................1-12

1-6. Label Information of Module .......................................1-13

1-6-1. Warning/Caution Label .......................................1-13

1-6-2. Voltage Label ......................................................1-14

1-6-3. Identification Label .............................................1-14

1-6-4. Safety Approval Label ........................................1-14

1-6-5. Serial No. of Frame Label ...................................1-14

1-7. Warning on Power Connection.....................................1-15

1-8. Unleaded Solder............................................................1-15

2-4. Vsc/_Vy Voltage Adjustment ........................................2-5

2-4-1. Required Equipment..............................................2-5

2-4-2. Vsc Voltage Adjustment .......................................2-5

2-4-3. _Vy Voltage Adjustment ......................................2-5

2-5. Flash Down-loading Method .......................................... 2-6

2-6. DEVICEINFO Section ...................................................2-7

3. Troubleshooting

3-1. Self Diagnosis Operation ................................................3-1

3-2. Check Point.....................................................................3-1

3-2-1. A Board .................................................................3-1

3-2-2. Plasma Display Panel ............................................3-2

3-3. Image Trouble.................................................................3-3

3-4. Power (G Board) Trouble ............................................... 3-4

3-5. Remote Control Trouble .................................................3-5

3-6. Sound Trouble ................................................................3-5

3-7. Other Trouble..................................................................3-6

3-8. Plasma Display Panel .....................................................3-7

3-8-1. Image is not displayed........................................... 3-7

3-8-2. Vertical Image is abnormal ...................................3-8

3-8-3. Horizontal Image is abnormal ...............................3-9

3-8-4. Mal Discharge .......................................................3-9

4. Spare Parts

2. Service Mode and Adjustment

2-1. Service Mode ..................................................................2-1

2-1-1. Service Mode Startup Procedure ...........................2-1

2-1-2. Configuration ........................................................2-1

2-1-3. Description of Main Items.....................................2-2

2-2. White Balance Adjustment .............................................2-3

2-2-1. Initialization ..........................................................2-3

2-2-2. AD Calibration ......................................................2-3

2-2-3. 1PC Signal............................................................. 2-3

2-2-4. White Balance .......................................................2-3

2-3. Va/Vs Voltage Adjustment............................................. 2-4

2-3-1. Required Equipment..............................................2-4

2-3-2. Vs Voltage Adjustment ......................................... 2-4

2-3-3. Va Voltage Adjustment .........................................2-4

FWD-42PX2

4-1. Notes on Repair Parts .....................................................4-1

4-2. Exploded Views.............................................................. 4-2

5. Block Diagram

5-1. Circuit Description..........................................................5-1

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1-1. Appearance Figure

Section 1

Service Overview

1 2 3 4 5 6 7 8 9

ON SET OFF

1-2. Board Location

H2 board

TEMP board

Y-DRV board

Y-SUS board

G board

L board

TEMP board

H1 board

I board

TEMP board

BKM-FW10

Z-SUS board

T-L board

XR board

A board

CTRL board

XL board

T-R board

FWD-42PX2

1-1

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1-3. Disassembly

When removing/installing the cabinet and replacing the board, place the unit on the conductive cushion.

1-3-1. Rear Cabinet Assembly

Hold the two handles and remove the rear cabinet assembly.

3 Four screws

6 Fourteen screws

4 Four knobs

5 Fourteen screws

1 Two panel securing

screws

2 BKM-FW10

Upper side

8 Rear cabinet assembly

Conductive cushion

1-2

FWD-42PX2

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1-3-2. Bezel Assembly/H1 Board/H2 Board

. Remove the rear cabinet assembly. (Refer to Section 1-3-1.)

m . When removing the chassis assembly, be sure to work with more than two persons. . When removing the chassis assembly, hold the four portions A and remove it from

the front frame assembly. . Place the removed chassis assembly on the conductive cushion.

Portions A

3 Control button

bracket

6 Control button

2 Two screws

3 H2 board

4 Three screws

1 Four screws

7 Four screws

CN3

9 Chassis assembly

Arm

Portions A

Upper side

0 Harness

Arm

8 Ten screws

![ Front frame

assembly

!= Filter glass

Conductive cushion

!- Bezel assembly

FWD-42PX2

!] Two screws

!\ H1 board

1-3

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1-3-3. A Board/L Board/I Board

. Remove the rear cabinet assembly. (Refer to Section 1-3-1.)

CN24

CN29

CN3

CN22

CN501

CN9

CN8

CN23

CN19

CN15

9 A board

CN1

!= Removing the lithium battery.

Remove the lithium battery in the direction of the arrow.

Lithium battery (CR-2032)

Battery holder

2 L board

Upper side

8 Four screws

1 Four screws

!/ I board

3 Four screws

4 Two screws

CN20

9 A board

7 Interface cover

5 Six connector screws

6 Screw

Conductive cushion

1-4

FWD-42PX2

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1-3-4. G Board/TEMP Board

. Remove the rear cabinet assembly. (Refer to Section 1-3-1.)

CN800

5 Two screws

6 TEMP boards

Upper side

CN807

P501

CN8

CN805

CN804

CN803

P501

CN802

CN801

1-3-5. T-R Board/T-L Board

. Remove the rear cabinet assembly. (Refer to Section 1-3-1.)

1 Eight screws

2 G board

3 Screw

P501

4 TEMP board

Conductive cushion

2 AC outlet cover

3 Two screws

Conductive cushion

Upper side

1 Three screws

CN1304

4 T-R board

5 Screw

7 Option shield plate

CN1302

9 T-L board

8 Two screws

6 Screw

FWD-42PX2

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1-3-6. A Block Assembly/DC Fan

. Remove the rear cabinet assembly. (Refer to Section 1-3-1.) . Remove the bezel assembly. (Refer to Section 1-3-2.) . Remove the G board. (Refer to Section 1-3-4.)

DC fan installation direction

6 CN24

5 CN23

Make sure that the label is oriented in the upward direction of the main unit.

![ Six screws

!- Six screws

2 Screw

3 Round type

connector

!] DC fans

1 Five screws

4 A block assembly

DC fan installation direction

9 Two

screws

Make sure that the label is oriented in the upward direction of the main unit.

0 DC fan

7 Screw

!= Fan brackets

Upper side

!' Two screws

!, DC fan

!; Fan bracket

DC fan installation direction

Make sure that the label is oriented in the upward direction of the main unit.

8 Fan bracket

Conductive cushion

!\ Screw

1-6

FWD-42PX2

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1-3-7. Y-DRV Board/Y-SUS Board

. Remove the rear cabinet assembly. (Refer to Section 1-3-1.) . Remove the bezel assembly. (Refer to Section 1-3-2.)

7 Y-DRV board

1 Two screws

2 Speaker bracket

support

Upper side

Conductive cushion

5 Three screws

P11

6 Six screws

P152

8 Y-SUS board

3 Two screws

4 Speaker bracket

support

FWD-42PX2

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1-3-8. CTRL Board

. Remove the rear cabinet assembly. (Refer to Section 1-3-1.) . Remove the bezel assembly. (Refer to Section 1-3-2.) . Remove the A block assembly. (Refer to Section 1-3-6.)

4 CTRL board

P10

3 Cushion

P11

2 Cushion retainer

1 Four screws

Upper side

4 CTRL board

1-3-9. Z-SUS Board

. Remove the rear cabinet assembly. (Refer to Section 1-3-1.) . Remove the bezel assembly. (Refer to Section 1-3-2.)

1 Five screws

Conductive cushion

1-8

Upper side

2 Z-SUS board

Conductive cushion

FWD-42PX2

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1-3-10. XL Board/XR Board

. Remove the rear cabinet assembly. (Refer to Section 1-3-1.) . Remove the bezel assembly. (Refer to Section 1-3-2.) . Remove the A block assembly. (Refer to Section 1-3-6.)

1 Four screws

2 Two frame modules

8 Five screws

7 XL board

Upper side

6 Six screws

P210

3 Seven screws

P208

P207

P206

P10

P205

P204

5 Flexible retainer

P108

P201

P202

P203

Conductive cushion

P11

P107

P106

P110

P105

P104

P103

P102

9 XR board

4 Six screws

P101

FWD-42PX2

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1-3-11. Plasma Display Panel

. Remove each part. (Refer to Sections 1-3-1 to 1-3-10.)

9 Five covers

3 Two screws

4 AC socket

support

!/ Five screws

!- G board bracket

7 Four screws

8 Speaker bracket

supports

5 Screw

6 Bracket

2 Bracket

Upper side

1 Screw

!= Plasma

display panel

Conductive cushion

1-10

FWD-42PX2

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1-4. Service Position

1-4-1. Service Position of A Board

m . When attaching this unit to the stands, be sure to work with two persons. . After attaching this unit to the stands, make sure that the knobs are securely inserted into the holes of

the stands.

. When assembling the service position, be sure to repair after removing the rear cabinet.

A board

Unit

1 Knobs

Unit

1 Knobs

2 Four screws

Stands

Insert the four knobs into the holes of stands.

Unit

FWD-42PX2

Stands

1-11

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1-5. Packing of the Plasma Display Panel

8 Lid of outer box

5 Protection plate for outer box

3 Inner box (front)

2 Protection plate

for inner box

Front

7 Outer box

Rear

2 Protection plate for inner box

4 Inner box (rear)

5 Protection plate

for outer box

1-12

1 PDP module

6 Palette

FWD-42PX2

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1-6. Label Information of Module

2 3 1 4 5

1 Warning/Caution label 2 Voltage label 3 Identification label 4 Safety approval label 5 Serial No. of frame

1-6-1. Warning/Caution Label

HIGH

VOLTAGE

1 Warning (High Voltage) 2 Warning (Hot Surface) 3 Caution (Mechanical Hazard)

WARNING

HAZARD VOLTAGE.

DO NOT TOUCH ELECTRIC POINT.

123

SURFACE

HOT

18.5 cm

WARNING

HOT PART CAN BE BURN.

DO NOT TOUCH ELECTRIC PART.

WOUND

CAUTION

MECHANICAL HAZARD.

DO NOT TOUCH POINTED PART.

2.1 cm

FWD-42PX2

1-13

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1-6-5. Serial No. of Frame Label1-6-2. Voltage Label

7 cm

MODEL : PDP42X3#### All Voltage : DC(=) 5.2V Va : 60V Vs : 186V 150 / -200 / 120 / N.A / 100 Max Watt : 330W(Full White)

1-6-3. Identification Label

7 cm

MODEL : PDP42X30000

512K343X3001108.AKLGG CC

LG Electronics Inc.

. Model Name . Bar Code (Contains the manufacture No.) . Manufacture No. . The trade name of LG Electronics . Manufactured date (Year & Month) . The place Origin . Mode Suffix

Date 2005.12 Made in Korea

2.5 cm

7 cm

P/N : 3315Q-H034A

2.5 cm

W4205C014819

LG Electronics Inc.

2.5 cm

1-6-4. Safety Approval Label

7.5 cm

MODEL=PDP42X3#### Rating Total Max Watt:340W Max Volt(=):5.25V/65Va/195Vs Max Amps:4.5A/2.0A/1.5A

LG Electronics Inc.

. Model Name . Max. Watt (Full White) . Max. Volts . Max. Amps . The Trade Name of LG Electronics . TUV Approval Mark . UL Approval Mark . UL Approval No.

2.5 cm

1-14

FWD-42PX2

Page 21

1-7. Warning on Power Connection

Use a proper power cord for your local power supply.

The United States, Continental Europe UK, Ireland, Australia, Japan Canada New Zealand

Plug type VM0233 COX-07/636 – Female end VM0089 COX-02/VM0310B VM0303B VM1313 Cord type STV H05VV-F CEE (13) 53rd (O, C) HVCTF Rated Voltage & Current 10 A/125 V 10 A/250 V 10 A/250 V 10A/125V Safety approval UL/CSA VDE VDE DENAN-HO

1) Use an appropriate rating plug which is applied to local regulations.

VM1296

1-8. Unleaded Solder

Boards requiring use of unleaded solder are printed with a lead free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)

LEAD FREE MARK

m . Be sure to use the unleaded solder for the printed circuit board printed with the lead free mark. . The unleaded solder melts at a temperature about 40 dC higher than the ordinary solder, therefore, it is

recommended to use the soldering iron having a temperature regulator.

. The ordinary soldering iron can be used but the iron tip has to be applied to the solder joint for a

slightly longer time. The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful.

FWD-42PX2

1-15

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Page 23

Service Mode and Adjustment

(

)

INITIALIZATION

. EEPROM INIT. . MODEL NAME . EXCEPT WB . FILL 0xFF . ONLY WB INIT . SERIAL MODE . ELAPSED TIME . SERIAL NO.

FOR TEST

. AGING ON/OFF . FAN ON/OFF . INIT GOODS

FOR SONY

. S-INIT GOOD . FAN FOR TEST . SELECT RS232 MAIN

TEMPERATURE

. REFER.SAVE . SENSOR2 . SENSOR1 . SENSOR3

WB DEFAULT DATA

. PC . DVI . VIDEO . COPY WB DATA . DTV

(Continued)

2-1. Service Mode

2-1-1. Service Mode Startup Procedure

1. Press the [ENTER] button of the remote controller (RM-980).

2. Enter the number 1 → 8 → 2 in order.

2-1-2. Configuration

Section 2

ASI510-MAIN

ASI510-SUB

ADC

AD CALIBRATION

UPD64012

AUDIO

WHITE BALANCE

Continued

. CONTRAST . GAMMA-G . BRIGHT . GAMMA-B . SHARP-Y . NOISE . SHARP-C . BLACK EXPD . GAMMA-R . WHITE EXPD

. CONTRAST . GAMMA-R . BRIGHT . GAMMA-G . SHARP-Y . GAMMA-B . SHARP-C

. CONTRAST-R . BRIGHT-B . CONTRAST-G . CLOCK . CONTRAST-B . PHASE . BRIGHT-R . AUTO . BRIGHT-G

. PC.CUTOFF . CONT.G . PC.GAIN . CONT.B . DTV.CUTOFF . BRT.R . DTV.GAIN . BRT.G . CONT.R . BRT.B

. CONTRAST . IFC . BRIGHT . CBW . SATURATION . LDLY . HUE . YOF . BRIGHT-CIP . ASI 0x238 . CONT-CIP . ASI 0x239 . SATUR.-CIP . ASI 0x23A . TINT-CIP . ASI 0x23B

. DELAY

. COLOR TEMP . SUB-GAIN . R-GAIN . SUB PK . G-GAIN . SUB GAMMA . B-GAIN . SUB CHROMA . R-OFFSET . SUB SHARP . G-OFFSET . SHARP OFFS . B-OFFSET . I/P LTI . SUB-OFFSET . PBPR BAL

FWD-42PX2

2-1

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2-1-3. Description of Main Items

1. AD CALIBRATION

PC.CUTOFF: Sets Cut Off of PC mode. PC.GAIN: Sets Gain of PC mode. DTV.CUTOFF: Not used DTV.GAIN: Not used CONT.R: Not used CONT.G: Not used CONT.B: Not used BRT.R: Not used BRT.G: Not used BRT.B: Not used

2. AUDIO

DELAY: Sets delay timing of Audio sound.

(0, 5, 15, 20, .....115, 120)

3. WHITE BALANCE

COLOR TEMP: Sets color temperature (11000, 9300,

6500). R-GAIN: Sets Red Gain (contrast). G-GAIN: Sets Green Gain (contrast). B-GAIN: Sets Blue Gain (contrast). R-OFFSET: Sets Red Offset (brightness). G-OFFSET: Sets Green Offset (brightness). B-OFFSET: Sets Blue Offset (brightness). SUB-OFFSET: Not used SUB-GAIN: Not used

5. FOR TEST

AGING ON/OFF: Sets Aging Mode on/off. FAN ON/OFF: Sets fan on/off. INIT GOODS: Initializes whole data for user to be

able to use the set.

6. FOR SONY

S-INIT GOOD: Initializes whole data except Operation

Time for user to be able to use the set.

FAN FOR TEST: Sets fan on/off.

This mode is used for the check in service. The fan is stopped under normal condition. It operates when the temperature inside of this unit rises.

SELECT RS232C: Not used

7. WB DEFAULT DATA

PC: Not used VIDEO: Not used DTV: Not used DVI: Not used COPY WB DATA: Not used

4. INITIALIZATION

EEPROM INIT.: Initializes EEPROM to default data. EXCEPT WB: Initializes data except white balance. ONLY WB INIT: Initializes white balance data only. ELAPSED TIME: Initializes Operation Time. SERIAL NO.: Initializes Serial Number. MODEL NAME: Initializes Model Name. FILL 0xFF: Initializes EEPROM to 0xFF. SERIAL MODE: Sets Serial Mode to communicate with

the set by using RS-232C. If INT GOODS is run, this is set to SONY. SONY: This is for user to control the

set by using RS-232C as remote controller.

LG: This is for setting white

balance.

ETC: This is for developer.

2-2

RS-232C cable

COM port

Personal computer

Cable connection

FWD-42PX2

Page 25

2-2. White Balance Adjustment

2-2-1. Initialization

Initialize all information stored in EEPROM.

1. Press the [ENTER] button of the remote controller (RM-980).

2. Enter the number 1 → 8 → 2 in order. The service mode starts up.

3. Select INITIALIZATION menu and run FILL 0xFF.

When the setting is completed, the unit becomes ON state automatically after power ON/OFF.

2-2-2. AD Calibration

Run Auto Calibration in PC (1024 x 768@60Hz) signal.

2-2-3. 1PC Signal

1. Start the service mode. (Refer to Section 2-1-1.)

2. Select AD CALIBRATION menu.

3. Input Full Black (No Video) pattern.

4. Run PC. CUTOFF.

5. Input Full White Pattern.

6. Run PC.GAIN.

2-2-4. White Balance

Signal level

700 mV p-p

Signal pattern

. 191-level (75IRE) full white pattern . 2/16 gray (16’st step at 255 level)

Color matrix adjustment

Run the following program sequence in order PC → 1080i → 480p → 480i → 575i → NTSC Composite → PAL

Composite.

1. After input each signal, adjust Sub Offset.

. Input 16-Gray Pattern. . Activate SERVICE MODE OSD and select WHITE

BALANCE menu.

. Change SUB-OFFSET and adjust Brightness of 2/16

gray level into under 0.8cd/m2. (SUB-OFFSET: ±10)

2. Input Full White Pattern.

3. Setup R-GAIN and R/G/B-OFFSET values of the WHITE BALANCE menu into the following TABLE value.

PC 1080i 480p 480i 575i NTSC PAL

R Gain 33 34 34 34 34 34 34 G Gain 32 33 33 33 33 33 33 B Gain 31 32 32 32 32 32 32 R Offset 61 61 61 61 61 61 61 G Offset 60 60 60 60 60 60 60 B Offset 63 63 63 63 63 63 63

After aging the set about 30 min., adjust color matrix of each color temperature 11000K/9300K/6500K.

Preparation for adjustment

Required equipment

. Signal generator (ex: VG-828) . Color analyzer (ex: CA1000)

Signals

If want to know detail timing. Refer to Sony Timing Spec.

. PC WXGA (1024 x 768@60 Hz) . 1080I (Y/Pb/Pr) . 480P (Y/Pb/Pr) . NTSC composite . PAL composite . 480I (NTSC component) . 575I (PAL component)

FWD-42PX2

4. Change G-GAIN and B-GAIN values and adjust color matrix. (Refer to Sony Color Matrix Spec.) 11000K: x = 276 (±15), y = 282 (±15) 9300K: x = 283 (±15), y = 298 (±15) 6500K: x = 313 (±15), y = 329 (±15)

5. Adjust each color temperature 11000K/9300K/6500K in order repeating steps 3 and 4.

Shipment condition setting

Set up the shipment condition.

1. Start the on service mode. (Refer to Section 2-1-1.)

2. After selecting FOR TEST menu, run INIT GOODS.

When the setting is completed, the unit becomes ON state automatically after power ON/OFF.

2-3

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2-3. Va/Vs Voltage Adjustment

2-3-1. Required Equipment

. Digital multi meter . Signal generator

Input signal: Input1 (RGB, D-Sub) 1024 x 768@60 Hz (Recommended pattern), 100 % white pattern

2-3-2. Vs Voltage Adjustment

1. Check the label on the right upper side of PDP panel

2. Turn the volume (1VR600) to be “Vs Voltage” on the label. Check point: 2, 3-pins (Y board) It is normally set in the range between 180 V and 195 V.

2-3-3. Va Voltage Adjustment

1. Look at the label on the right upper side of PDP panel

2. Then turn the volume (1VR700) to be “Va Voltage” on the label. Check point: 10-pins (Y board) It is normally set in the range between 55 V and 65 V.

2, 3 pins

10-pin

1VR600

1VR700

2-4

FWD-42PX2

Page 27

2-4. Vsc/

_Vy Voltage Adjustment

After replacing the Y-SUS board, perform the adjustment in this section.

2-4-1. Required Equipment

. Digital multimeter . Signal generator

Input signal: Input1 (RGB, D-Sub) 1024 x 768@60 Hz (Recommended pattern), 100% white pattern

2-4-2. Vsc Voltage Adjustment

1. Perform the adjustment so that the following specification is satisfied. Adjustment point: C51 Specification: See below

2-4-3.

_Vy Voltage Adjustment

1. Perform the adjustment so that the following specification is satisfied. Adjustment point: R36 Specification: See below

_Vy specification value Vsc specification value

The above is a voltage label sample. Check the actual model for the actual specification value.

adjustment volume

VSC measuring point

_Vy adjustment volume

FWD-42PX2

GND

_Vy measuring point

2-5

Page 28

2-5. Flash Down-loading Method

Preparation

1. Connect this unit with PC using the RS-232C cable.

2. Disconnect the AC power cord of this unit.

Download

1. Start the file, “FWD42PX2_Down.exe”.

2. Select “COM1” as COM Port and “57600” as baud rate as below picture.

3. Click the [Port|Setup], then click the [OK] button.

4. Click the [Load] button, then select the file from the designated folder.

5. Click the [Run|DownLoad] button.

Download is started. (Down Load Time : about 5 minutes)

If down load is finished, the monitor will be re-booted automatically.

m . Do not remove AC cord from PC and monitor while

down load operation is being proceeded.

. After processing micom update with ISP program,

please execute following in order for the unit to maintain “Shipping default condition”.

* Execute EXCEPT WB in INITIALIZATION. * Execute COPY WB DATA in WB DEFAULT

DATA.

* Execute INIT GOODS in FOR TEST.

2-6

FWD-42PX2

Page 29

2-6. DEVICEINFO Section

1. Connect PC to PDP using the serial cable.

2. Set the port. (1) Select the model. (FWD-42PX2) (2) Select the port. (COM1, COM2, COM3 or COM4)

The initial setting is COM1.

3. Click the [Read] button in “Model Name”. (Data reading) If the data reading is completed successfully, the setting in the port that has been selected in step 2 can be performed. If not, return to step 2 and select another port. Then, perform the data reading again.

4. Data writing Modify: Model name, serial number, operating time Write: Model name, serial number, operating time

FWD-42PX2

2-7

Page 30

Page 31

Section 3

Troubleshooting

3-1. Self Diagnosis Operation

Check Items Status

Panel Communication error Power Off → LED Blinking 2 times FAN Abnormal Power On → LED Blinking 3 times Temp. Abnormal Power Off → LED Blinking 4 times Voltage Abnormal

*: There is abnormal state in any of 5 V/9 V/3.3 V/Vs/Va/12V that is output from the G board.

3-2. Check Point

3-2-1. A Board

Power Off → LED Blinking 5 times

LED symptoms

1. No LED flashing

Cause 1: G board can’t supply 5 V.

(Check 3 and 4-pins of the CN9 on the A board.) → Check the connector, or replace the G board.

Cause 2: Pattern on the A board is short.

→ Replace the A board or H1 board.

2. Only red LED lighting (No power on)

Cause 1: Check the 5 V line from the G board to the A

board. (Check 1-pin of the CN9 on the A board.) →If the 5 V line is abnormal, check the

connector, or replace the G board. If it is ok, replace the A board.

Cause 2: Micom halt

→ Replace the A board.

3. Only amber LED lighting (No power on)

Cause 1: Micom halt → Replace the A board.

4. Repeated blinking from red to green LED flashing (No power on)

Cause 1: A board is damaged.

→ Replace the A board.

Cause 2: G board can’t supply another voltage.

→ Replace the G board.

Raster symptoms (If LED is ok)

1. No raster (First check back raster if plasma display panel is on)

Cause 1: If it is ok, replace the A board. Cause 2: If it is not, replace the G board or plasma

display panel.

2. No raster at special mode.

Cause 1: Replace the A board. Cause 2: If there is no raster after inputting the DVI

signal, check EDID.

3. Abnormal raster

Cause 1: When you change A board, it is abnormal.

→ Plasma display panel has problem.

Sound Symptoms

1. You can’t hear sound output

Cause 1: Check 1 and 3-pins of the CN1 on the L board. If

it is ok, replace the L board. The 3-pin of CN1 is the L/R output terminal of the audio signal. Check the signal using the oscilloscope. If there is no signal, the A board is the cause of the trouble. Otherwise, the L board is the cause of the trouble.

Cause 2: If it is not, replace the A board.

5. Blinking red LED many times.

Refer to Section 3-1.

FWD-42PX2

2. Abnormal sound

Cause 1: Replace the L board.

3-1

Page 32

3-2-2. Plasma Display Panel

1. Image is not displayed.

. Check all connectors. . Check the Exhaust tip. . Check blink of LEDs on the CTRL board and check the

5 V CTRL voltage.

. Check fuse on the Y-SUS board and check Vsc, _Vy,

Vs, V5 CTRL voltage.

. Check fuse on the Z-SUS board and check Va, V5

CTRL, Vs voltage.

2. Vertical bar failure

. Check all connectors. . Check peripheral circuit and connecting of the XR and

XL boards.

4. Mal discharge

. Check signals of Y-DRV and Z-SUS boards and check

Y-SUS board voltage (_Vy, Vsc).

. Check Y-DRV board. . Check CTRL board.

3. Horizontal bar failure

. Check all connectors. . Check peripheral circuit and connecting of the Y-DRV

board.

3-2

FWD-42PX2

Page 33

3-3. Image Trouble

Main symptoms

. Dot noise . Picture noise . Bad color . Vertical dot noise . Unstable image . No image . Broken OSD . No inversion . No power saving . Clock error . No screen saver . Flashing picture . Dark picture . Unstable caption/text

Image is abnormal.

Are all input signals abnormal? (RGB/DVI/YUV/CVBS)

Yes

Is the connection of the A board abnormal?

. Image is not correctly displayed. . Power goes off.

Is the G board abnormal?

. Image is dark or flashing. . Power cannot be turned on,

or setting is reset.

For the replacement parts, refer to Section 4. The parts other than those described in Section 4 are not service parts. When the replacement of those parts is required, replace them in the assembly unit.

Yes

There is a high possibility that the A board caused the trouble. → Replace the A board.

Connect correctly. If the trouble persists, replace the A board.

Perform Va and Vs voltage adjustments. (Refer to Section 2-3.) If the trouble persists, replace the G board.

After replacing the A board, perform the following adjustments.

. AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.) . EDID data input . S-init Goods (Refer to Section 2.)

After replacing the A board, perform the following adjustments.

. AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.) . EDID data input . S-init Goods (Refer to Section 2.)

After replacing the G board, perform the following adjustments.

. Va Voltage Adjustment (Refer to Section 2-3.) . Vs Voltage Adjustment (Refer to Section 2-3.)

Is the CTRL board abnormal? (Refer to Sections 3-3-2 and 3-8.)

Is the Y-SUS board abnormal? (Refer to Sections 3-3-2 and 3-8.)

Replace the Z-SUS board.

FWD-42PX2

Yes

Replace the CTRL board.

Replace the Y-SUS board.

After replacing the Y-SUS board, perform the following adjustments.

. Vsc Adjustment (Refer to Section 2-4.) ._Vy Adjustment (Refer to Section 2-4.)

3-3

Page 34

3-4. Power (G Board) Trouble

Power cannot be turned on.

Is there any trouble in AC power cable or line filter cable?

Is LED reset repeatedly?

Is there any abnormal state in the connection between the G board and A board.

Yes

Identify the trouble portion and improve it.

There is a high possibility that the A board caused the trouble. → Replace the A board.

Connect correctly.

After replacing the A board, perform the following adjustments.

. AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.) . EDID data input . S-init Goods (Refer to Section 2.)

Is the G board abnormal? (*)

Is the A board abnormal?

. Check where is short pattern. . Re-on (2-pin of CN9 on the

A board): High 1 V.

. Vs-on (7-pin of CN9 on the

A board): High 1 V.

Replace the CTRL board.

(*)

. 5 Vst (Stand by 5 V, 3, 4-pins of CN9 on the A board): 5 V . AC-DET (1-pin of CN9 on the A board): 5 V . Re-on (Rely-on switching signal, pin-2 of CN9 on the A board): High 1 V . Vs-on (Vs-on signal, pin-7 of CN9 on the A board): High 1 V

Yes

Replace the G board.

Replace the A board.

After replacing the G board, perform the following adjustments.

. Va Voltage Adjustment (Refer to Section 2-3.) . Vs Voltage Adjustment (Refer to Section 2-3.)

After replacing the A board, perform the following adjustments.

. AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.) . EDID data input . S-init Goods (Refer to Section 2.)

3-4

FWD-42PX2

Page 35

3-5. Remote Control Trouble

Remote control is abnormal.

Is there any abnormal state in the connection between CN22 on the A board and CN1 on the H1 board?

Is the H1 board abnormal?

Replace the A board.

Yes

After replacing the A board, perform the following adjustments.

. AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.) . EDID data input . S-init Goods (Refer to Section 2.)

Connect correctly.

Replace the H1 board.

3-6. Sound Trouble

Sound is abnormal.

Is there any abnormal state in the following items?

. P1 and P3 on the L board . CN1 on the A board . CN1302 on the T-L board . CN1304 on the T-R board

Is the L board abnormal? . Check 1 to 4-pins of P3.

Replace the A board.

FWD-42PX2

Yes

After replacing the A board, perform the following adjustments.

. AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.) . EDID data input . S-init Goods (Refer to Section 2.)

Replace the defective parts.

Replace the L board.

3-5

Page 36

3-7. Other Trouble

(

)

Button failure

Is there any abnormal state in the connection between CN3 on the A board and the H2 board?

Is there any abnormal state in the following items?

. Resistance of the H1 board . R12 on the A board (*)

Replace the A board.

Yes

After replacing the A board, perform the following adjustments.

. AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.) . EDID data input . S-init Goods (Refer to Section 2.)

Connect correctly. (*)

Replace the defective parts.

Feedback voltage (in the normal state) Check R12 voltage while pressing each button.

. DC POWER: 0.07 V . ENTER: 0.38 V . UP: 0.85 V . DOWN: 1.23 V . MENU: 1.61 V . INPUT: 2.05 V . NO KEY: 3 V

DC fan operation failure

Is there any abnormal state in the connection CN23 and CN24 on the A board.?

Is there any abnormal state in the following items of the fan assembly? (*)

. 1 to 8-pins of CN23 . 1, 2-pins of CN24

Replace the A board.

Yes

After replacing the A board, perform the following adjustments.

. AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.) . EDID data input . S-init Goods

Connect correctly.

Replace the DC fan.

Refer to Section 2.

(*) In the normal state

. 1 to 8-pins of CN23: 9 V . 1, 2-pins of CN24: 9 V

3-6

FWD-42PX2

Page 37

3-8. Plasma Display Panel

Image is not displayed.

Yes

Connect correctly.

Is there any abnormal state in the connection of each board? (Refer to “Disassembly” in Section 1-3.)

Yes

Is there any abnormal state in fuse?

. Y-SUS board (3 positions) . Z-SUS board (2 positions)

Replace the defective fuse or the Y-SUS board.

Perform the Va and Vs voltage adjustments. If trouble persists, replace the G board.

Yes

Is there any abnormal state in the output (Va, VS and 5V) of the G board? . CN807 (From the G board to

the Z-SUS board)

. CN8 (From the G board to

the Y -SUS board)

Is there any abnormal state in the TIP tube?

Replace the plasma display panel.

Yes

Is the symptom improved after replacing with another Y-SUS board?

Replace the Y-SUS board.

Yes

Is the symptom improved after replacing with another Z-SUS board?

Replace the Z-SUS board.

Yes

Is the symptom improved after replacing with another CTRL board?

Replace the CTRL board.

After replacing the Y-SUS board, perform the following adjustments.

. Vsc Adjustment (Refer to Section 2-4.) ._Vy Adjustment (Refer to Section 2-4.)

After replacing the Y-SUS board, perform the following adjustments.

. Vsc Adjustment (Refer to Section 2-4.) ._Vy Adjustment (Refer to Section 2-4.)

After replacing the plasma display panel, perform the following adjustments.

. Va Voltage Adjustment (Refer to Section 2-3.) . Vs Voltage Adjustment (Refer to Section 2-3.) . AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.)

After replacing the plasma display panel, perform the following adjustments.

. Va Voltage Adjustment (Refer to Section 2-3.) . Vs Voltage Adjustment (Refer to Section 2-3.) . AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.)

After replacing the G board, perform the following adjustments.

. Va Voltage Adjustment (Refer to Section 2-3.) . Vs Voltage Adjustment (Refer to Section 2-3.)

3-8-1. Image is not displayed

FWD-42PX2

3-7

Page 38

3-8-2. Vertical Image is abnormal

Vertical image is abnormal.

Is there a symptom that the image on the right or left half of the screen is not displayed? (Vertical streaks on the half side of the screen)

Is there any vertical line (line or stripe) on the screen?

Yes

Is there any abnormal state or foreign substance in the connection between the XR board or XL board and the TCP connector (on the panel) of the trouble position?

Is there any problem in the connection

Yes

of the XR board or XL board? XL board: Connection between Y-SUS

board and CTRL board

XR board: Connection between Z-SUS

board and CTRL board

Replace the XL or XR board.

Is there any vertical line over the whole screen area at regular intervals?

Connect correctly or remove the foreign substance.

Yes

Connect correctly.

Replace the CTRL board.

Replace the plasma display panel.

After replacing the plasma display panel, perform the following adjustments.

. Va Voltage Adjustment (Refer to Section 2-3.) . Vs Voltage Adjustment (Refer to Section 2-3.) . AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.)

3-8

FWD-42PX2

Page 39

3-8-3. Horizontal Image is abnormal

Horizontal image is abnormal.

Is there any abnormal state or foreign substance in the connection between the Y-DRV board and the flexible flat cable of the trouble position?

Is the symptom improved after replacing with another Y-DRV board?

Replace the plasma display panel.

Yes

After replacing the plasma display panel, perform the following adjustments.

. Va Voltage Adjustment (Refer to Section 2-3.) . Vs Voltage Adjustment (Refer to Section 2-3.) . AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.)

Connect correctly or remove the foreign substance.

Replace the Y-DRV board.

3-8-4. Mal Discharge

Mal discharge

Replace the Y-DR V, Y-SUS, or CTRL board.

After replacing the Y-SUS board, perform the following adjustments.

. Vsc Adjustment (Refer to Section 2-4.) ._Vy Adjustment (Refer to Section 2-4.)

FWD-42PX2

3-9

Page 40

Page 41

4-1. Notes on Repair Parts

1. Safety Related Components Warning

Components marked ! are critical to safe operation. Therefore, specified parts should be used in the case of replacement.

2. Standardization of Parts

Some repair parts supplied by Sony differ from those used for the unit. These are because of parts commonality and improvement. Parts list has the present standardized repair parts.

3. Stock of Parts

Parts marked with “o” at SP (Supply Code) column of the spare parts list may not be stocked. Therefore, the delivery date will be delayed.

Section 4

Spare Parts

4. Harness

Harnesses with no part number are not registered as spare parts.

FWD-42PX2

4-1

Page 42

Screw Kit

4-2. Exploded Views

2 4

8 a

16 16 16 16

18 181818

161616

4-2

FWD-42PX2

Page 43

19 20

Screw Kit

Note : The screws can be ordered in units of screw kit. (Sony part No. 21 to 23)

No. Part No. SP Description 21 X-2055-059-1 s SCREW KIT (INSIDE)

OUTSIDE SCREW KIT

!; 1SZZTYT003B !' 1SZZTMF016B !, 1SZZTMP010B

. The numbers encircled by round corresponds to numbers in illustrations.

No. Part No. SP Description 22 X-2055-060-1 s SCREW KIT (OUTSIDE)

WALL MOUNT SCREW KIT

!. 1WZZTKK004B @/ 1SZZTMH006B

No. Part No. SP Description 23 X-2022-847-1 s SCREW KIT, WALL MOUNT

INSIDE SCREW KIT

1 1SZZTMP007D 2 332-102L 3 1SZZTYT001D 4 332-122E 5 339-006B

6 339-008N 7 339-008P 8 1SZZTMF016B 9 1SZZTYT016D 0 339-009F

!- 332-095L != 1SZZTMF012A ![ 1SZZTMP005C !] 1SZZTMP009B !\ 332-008M

a 1NHB0302120 b 1WZZTKK005B c 1SZZTMH005B

FWD-42PX2

4-3

Page 44

Cover

BKM-FW10

103

108

107

104

102

No. Part No. SP Description 101 X-2024-229-1 s ASSY,FRONT FRAME

102 X-2109-622-1 s BEZEL ASSY(SILVER) X-2109-625-1 s BEZEL ASSY(BLACK) 103 X-2109-623-1 s REAR CABINET ASSY 104 1-789-198-11 s MOUNTED CIRCUIT BOARD, H2 105 1-789-199-11 s MOUNTED CIRCUIT BOARD, H1

101

106

105

106 2-159-847-01 s GLASS, FILTER 107 2-591-335-01 s BUTTON, CONTROL 108 2-591-336-01 s BRACKET, CONTROL BUTTON

4-4

FWD-42PX2

Page 45

207

204

206

211

201

Chassis

205

209

210

208

202

203

No. Part No. SP Description 201 ! 1-417-398-21 s AC INLET

202 ! 1-787-338-11 s DC FAN 203 ! 1-787-338-21 s DC FAN 204 1-789-200-11 s MOUNTED CIRCUIT BOARD, L 205 1-789-550-11 s MOUNTED CIRCUIT BOARD, A

206 1-789-553-11 s MOUNTED CIRCUIT BOARD, I 207 1-789-564-11 s MOUNTED CIRCUIT BOARD, T-R 208 1-789-565-11 s MOUNTED CIRCUIT BOARD, T-L 209 2-681-504-01 s COVER, INTERFACE 210 2-990-241-02 s HOLDER (A), PLUG

211 ! 1-528-174-11 s LITHIUM BATTERY(CR2032)

FWD-42PX2

4-5

Page 46

Panel

301

305

FS2

303

FS3

308

F100

FS1

301

302

310

FS2

304

309

302

306

No. Part No. SP Description 301 X-2109-653-1 o MODULE FLAME ASSY

302 1-789-203-11 s MOUNTED CIRCUIT BOARD, TEMP

No. Part No. SP Description

G BOARD

F100 ! 1-576-300-51 s FUSE (POWER BOARD) 8A/250V 303 ! 1-789-551-11 s MOUNTED CIRCUIT BOARD, G 304 1-789-554-11 s MOUNTED CIRCUIT BOARD, Z-SUS 305 1-789-555-11 s MOUNTED CIRCUIT BOARD, Y-SUS

Z-SUS BOARD

FS1 ! 1-576-231-51 s FUSE (Z SUS) 4A/250V

FS2 ! 1-576-231-51 s FUSE (Z SUS) 4A/250V 306 1-789-556-11 s MOUNTED CIRCUIT BOARD, XR 307 1-789-557-11 s MOUNTED CIRCUIT BOARD, XL 308 1-789-558-11 s MOUNTED CIRCUIT BOARD, CTRL 309 1-789-559-11 s MOUNTED CIRCUIT BOARD, Y-DRV

Y-SUS BOARD

FS2 ! 1-576-231-51 s FUSE (Y SUS) 4A/250V

FS3 ! 1-576-231-51 s FUSE (Y SUS) 4A/250V 310 1-802-143-11 s PLASMA DISPLAY PANEL

307

4-6

FWD-42PX2

Page 47

406

Packing

417

408

414

412

401

409

405

410

402

411

407

404

403

415

416

406

413

No. Part No. SP Description 401 1-478-991-13 s REMOTE COMMANDER (RM-980)

402 9-885-014-97 s BATTERY COVER (FOR RM-980) 403 1-566-316-11 s CONNECTOR, CONVERSION 404 1-827-782-11 s CABLE, DVI 405 1-830-999-11 s VIDEO CABLE

406 2-591-343-01 s CUSHION (TOP & BOTTOM) 407 2-680-266-02 s MANUAL, INSTRUCTION (JAPANESE, ENGLISH, FRENCH, GERMAN, SPANISH, ITALIAN, SIMPLIFIED CHINESE) 408 2-681-507-01 s INDIVIDUAL CARTON 409 2-990-242-01 s HOLDER (B), PLUG 410 3-613-640-01 o PLUG,HOLDER C

411 3-674-673-01 o STOPPER (A) 412 4-101-214-01 s HOLDER, CABLE 413 4-101-219-01 s TRAY, BOTTOM 414 4-101-222-01 s CARTON, INSIDE 415 4-101-223-01 s BAG, PROTECTION

416 4-101-224-01 o ACCESSORY BOX 417 ! ------------ CORD, POWER (See Sec.1-6. Warning on Power Connection)

FWD-42PX2

4-7

Page 48

Overall

SS-SP42FW (Option)

BVTP 4 x 12

PSW 4 x 12

BVTP 4 x 12

PSW 4 x 12

BVTP 4 x 12

501

No. Part No. SP Description 501 A-1081-102-A s SPEAKER ASSY (42R) (RP)

(FOR SS-SP42FW/S (SILVER)) A-1083-765-A s SPEAKER ASSY (42R) (RP) WHITE (FOR SS-SP42FW/W (PEARL WHITE)) 502 A-1081-103-A s SPEAKER ASSY (42L) (RP) SILVER (FOR SS-SP42FW/S (SILVER)) A-1083-766-A s SPEAKER ASSY (42L) (RP) WHITE (FOR SS-SP42FW/W (PEARL WHITE))

BVTP 4 x 12

502

7-682-963-09 s SCREW +PSW 4X12(EP-FE/ZNBK/CM2) 7-685-661-14 s SCREW +BVTP4X12(EP-FE/CU,NI,CR)

4-8

FWD-42PX2

Page 49

TOP SIDE

Board Connections

CN1101

TEMP Board

Y-SUS Board

Y-DRV Board

CN1201

H1 Board

P152

FAN4

P210

P501

H2 Board

XL Board

L Board

T-R Board

CN807

CN8

CN805 CN804 CN803

CN801

CN802

FAN1 FAN2

CN3

CN22

CN19

CN23

CN501 CN9

CN8 CN15

P10

P200 P100

P16

P11

FAN3

CN24

CN29

A Board

CTRL Board

TEMP Board

I Board

CN1

P501

T-L Board

XR Board

TEMP BoardG Board

P501

FAN5

P110

Z-SUS Board

No. Part No. SP Description

1-910-002-76 o CONNECTOR ASSY, 12P MAIN

1-910-002-77 o CONNECTOR ASSY, 7P MAIN

1-910-002-81 o CONNECTOR ASSY, 4P KEY

1-910-002-85 s CONNECTOR ASSY, LVDS

1-910-002-86 o CONNECTOR ASSY, 9P SENS

1-910-012-52 o CONNECTOR ASSY Z SUS 8P

1-910-012-55 o CONNECTOR ASSY MAIN 8P

1-910-012-56 o CONNECTOR ASSY AU 12P

1-910-012-57 o CONNECTOR ASSY RMT 8P

1-910-013-70 o CONNECTOR ASSY MAIN 10P

1-910-025-66 o CONNECTOR ASSY Y SUS 9P

1-910-025-67 o CONNECTOR ASSY AUDIO 4P

. The numbers encircled by round corresponds to those

of the left illustration.

FWD-42PX2

4-9

Page 50

Page 51

Section 5

Block Diagram

5-1. Circuit Description

1. Input signal selection circuit

RGB and component signals are input to AD converters IC88 and IC89 for selection. Video and audio signals are switched using IC41.

2. A/D converter

This A/D converter consists of IC88 and IC89, and their peripheral circuits. IC88 and IC89 have preamplifier and PLL functions as well as an A/D converter function. The RGB and component signals from a D-Sub connector are input to the RGB signal pins of IC88 and IC89. After the input signals are amplified, they are converted into an 8-bit digital signal and output to IC14. IC88 also generates a clock of IC14.

3. Microcomputer and DDC

This microcomputer and DDC consist of IC91, OTP memory (IC33), I/O controllers (IC2, IC8, IC36, and IC65), and EEPROM (IC1, IC34, and IC49). IC91 controls the peripheral device using an IIC line. The major functions are as follows:

1) Memorizes the setting value of a user in IC1.

2) Memorizes EDID data in IC34 and IC49.

6. Audio decoder (digital audio processor) circuit

This audio decoder circuit consists of IC5 and its peripheral circuit. IC91 controls this circuit using an IIC line. An audio signal is digital-processed using this circuit and output to audio amplifier IC7.

7. Deinterlace block

This deinterlace block consists of IC10 and its peripheral circuit. IC91 controls this deinterlace block using an IIC line. IC10 deinterlace- converts an 8-bit digital interlace YUV signal. The converted signal is output as a 16-bit digital YUV signal.

8. Panel link circuit

LVDS transmitter IC44 outputs the signal from IC14 to the panel using LVDS. The output signal is converted into the former signal using the LVDS receiver on the panel. (Same as for the output of IC14.)

9. Closed caption

The closed caption signal from IC9 is input to IC59 and mixed with a video signal.

4. Video decoder and three-dimensional comb filter circuit

This video decoder and three-dimensional comb filter circuit consist of IC59 and IC91 that controls the IIC line of IC59. CVBS, Y/C, and Y/Pb/Pr signals are converted into an 8-bit interlace signal using IC59 and output to the deinterlace block. IC59 adjusts the contrast, brightness, sharpness, hue, and color density. The CVBS signal is separated into Y and C signals. For an NTSC signal, a three-dimensional comb filter is used.

5. DVT circuit

This DVT circuit consists of IC88 and IC89, and their peripheral circuits. It processes a component signal of up to DTV (729P and 1080i). This circuit is controlled in an IIC line using IC91. It converts the component signal from a D-Sub connector (CN10) and options 1 and 2 into a digital signal and outputs it to IC14.

FWD-42PX2

5-1

Page 52

16Bits

CCIR601

IC26, IC27

IC55, IC90

IC44

IC10

IC29

IC58

IC14

IC59

IC9

IC41

IC5IC2 IC7

IC34, IC49

IC33

IC92

IC91

24Bits

16Bits

DVI

RGB

COMPOSITE, Y/C

TMDS+HDCP

DVI/1080P/RGB (48Bit)

DVI/

1080i

24Bit

24Bits

Panel

YUV (PAP,

1080I)

DVI IIC

RGB/YUV

ADC

Deinterlacer

LVDX

Video Decoder

AV S/W

DVI

D-Sub

Option1

D-Sub,BNC

Option1

CVBS

Option1

S-Video

Audio 2

SDRAM

8MB x 2

SDRAM

8MB

Scaler

ODD

Even

SCART RGB

Option 1

Audio 3

CCIR601

Option 2

Audio 4

24Bits

IC88

IC43

IC900

IC34

IC901

IC89

RGB

/YUV

Delay Pre-Amp

ADC

Out-amp

Audio

SDRAM

8MB

Video

SDRAM

2MB

DVI/1080P/RGB (48Bit)

DE MUX

H/V SYNC

EEPROM

128Byte

MICOM

LED+Key

Key

IIC

EEPROM

8kB

Audio 1

Option2

CVBS

Option2

S-Video

S/W

CVBS

S-Video

Option2

D-Sub,BNC

S/W

CVH-SYNC

FLASH

1MB

SRAM

128kB

Analog RGB

Closed

Caption

5-2

FWD-42PX2

Page 53

Page 54

FWD-42PX2 (SY) E 9-834-111-01

Printed in Japan

Sony Corporation 2006. 5 22

Sony FWD-42PX2 Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

1-1. Appearance Figure

Service Overview

1-2. Board Location

1-3. Disassembly

1-3-1. Rear Cabinet Assembly

1-3-2. Bezel Assembly/H1 Board/H2 Board

1-3-3. A Board/L Board/I Board

1-3-4. G Board/TEMP Board

1-3-5. T-R Board/T-L Board

1-3-6. A Block Assembly/DC Fan

1-3-7. Y-DRV Board/Y-SUS Board

1-3-8. CTRL Board

1-3-9. Z-SUS Board

1-3-10. XL Board/XR Board

1-3-11. Plasma Display Panel

1-4. Service Position

1-4-1. Service Position of A Board

1-5. Packing of the Plasma Display Panel

1-6. Label Information of Module

1-6-1. Warning/Caution Label

1-6-5. Serial No. of Frame Label1-6-2. Voltage Label

1-6-3. Identification Label

1-6-4. Safety Approval Label

1-7. Warning on Power Connection

1-8. Unleaded Solder

Service Mode and Adjustment

2-1. Service Mode

2-1-1. Service Mode Startup Procedure

2-1-2. Configuration

2-1-3. Description of Main Items

2-2. White Balance Adjustment

2-2-1. Initialization

2-2-2. AD Calibration

2-2-3. 1PC Signal

2-2-4. White Balance

2-3. Va/Vs Voltage Adjustment

2-3-1. Required Equipment

2-3-2. Vs Voltage Adjustment

2-3-3. Va Voltage Adjustment

2-4-1. Required Equipment

2-4-2. Vsc Voltage Adjustment

2-5. Flash Down-loading Method

2-6. DEVICEINFO Section

Troubleshooting

3-1. Self Diagnosis Operation

3-2. Check Point

3-2-1. A Board

3-2-2. Plasma Display Panel

3-3. Image Trouble

3-4. Power (G Board) Trouble

3-5. Remote Control Trouble

3-6. Sound Trouble

3-7. Other Trouble

3-8. Plasma Display Panel

3-8-1. Image is not displayed

3-8-2. Vertical Image is abnormal

3-8-3. Horizontal Image is abnormal

3-8-4. Mal Discharge

4-1. Notes on Repair Parts

Spare Parts

4-2. Exploded Views

Block Diagram

5-1. Circuit Description