Sony PFM-42B2 User manual

.............. ......... ....................
SERVICE MANUAL
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MODEL DEST. CHASSIS NO. MODEL DEST. CHASSIS NO.
PFM-42B2 US/CND/E
PFM-42B2E AEP
BKM-B10 AEP
RM-42B US/CND/AEP/E
FLAT PANEL MONITOR
4 5 6
7 8 9
0
1 32
PFM-42B2 Flat Panel Monitor
PFM-42B2E Flat Panel Monitor
BKM-B10 Video Input Adaptor (AEP only) (SEPARATE VOLUME)
BKM-B12 Component Input Adaptor (SEPARATE VOLUME)
BKM-B13 Video Input & Control S Adaptor (SEPARATE VOLUME)
RM-42B Remote Commander

PFM-42B2/42B2E
WARNING!!
AN INSULATEDTRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE-
CAUSE OF LIVE CHASSIS.
THE CHASSIS OFTHIS RECEIVER IS DIRECTLY CONNECTED
TO THE AC POWER LINE.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTSIDENTIFIEDBYA!!
!!
!MARKONTHESCHEMATIC
DIAGRAMS, EXPLODED VIEWS AND INTHE PARTS LIST ARE
CRITICAL TO SAFE OPERATION. REPLACE THESE COMPO-
NENTSWITH SONY PARTS WHOSE PART NUMBERS APPEAR
AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
ATTENTION!!
AFIN D’ÉVITER TOUT RISQUE D’ÉLECTROCUTION
PROVENANT D’UN CHÂSSIS SOUS TENSION, UN
TRANSFORMATEUR D’ISOLEMENT DOITETREUTILISÉLORS
DE TOUT DÉPANNAGE.
LE CHÂSSIS DE CE RÉCEPTEUR EST DIRECTEMENT
RACCORDÉ Á L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS Á LA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MAPQUE !!
!!
!SUR
LES SCHÉMAS DE PRINCIPE, LES VUES EXPLOSÉES ET LES
LISTES DE PIECES SONT D’UNE IMPORTANCE CRITIQUE
POUR LA SÉCURITÉ DU FONCTIONNEMENT. NE LES
REMPLACER QUE PAR DES COMPOSANTS SONY DONT LE
NUMÉRO DE PIÈCE EST INDIQUÉ DANS LE PRÉSENT
MANUEL OU DANS DES SUPPLÉMENTS PUBLIÉS PAR SONY.
!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.

PFM-42B2/42B2E
For the customers in the Netherlands
Voor de klanten in Nederland
Dit apparaat bevat een CR2025 batterij voor memory
back-up.
Raadpleeg uw leverancier over de verwijdering van de
batterij op het moment dat u het apparaat bij einde
levensduur afdankt.
Gooi de batterij niet weg. maar lever hem in als KCA.
Bij dit product zijn batterijen geleverd.
Wanneer deze leeg zijn, moet u ze niet
weggooien maar inleveren als KCA.
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.
For the customers in the Netherlands
Voor de klanten in Nederland
Bij dit product zijn batterijen geleverd.
Wanneer deze leeg zijn, moet u ze niet
weggooien maar inleveren als KCA.
1 (P)

PFM-42B2/42B2E
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.
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 recommandépar le
constructeur.
Mettre au rebut les batteries usagées conformément
aux instructions du fabricant.
ADVARSEL!
Lithiumbatteri-Eksplosionsfare ved fejlagtig
håndtering.
Udskiftning måkun 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.
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.
Hävitäkäytetty paristo valmistajan ohjeiden
mukaisesti.
2 (P)

1
PFM-42B2/42B2E
Table of Contents
1. Service Informations
1-1. Board Layout...............................................................................................1-1
1-2. Disassembly ................................................................................................1-2
1-2-1. QA Board Removal....................................................................1-2
1-2-2. Rear Cover Assy Removal .........................................................1-3
1-2-3. Bezel Assy and YA, YB Boards Removal .................................1-4
1-2-4. B Block Assy Removal ..............................................................1-5
1-2-5. B and B1 Boards Removal .........................................................1-6
1-2-6. Extension Board Connection......................................................1-7
1-2-7. Switching Regulator (APS-179 board) Removal .......................1-8
1-2-8. Plasma Display Panel Unit Removal (1/2).................................1-9
1-2-9. Plasma Display Panel Unit Removal (2/2)...............................1-10
1-2-10. Plasma Display Panel Unit Packing
When Sending it to FUJITSU ..................................................1-11
1-2-11. Power Cord...............................................................................1-12
1-3. Service Position.........................................................................................1-13
2. Electrical Adjustments
2-1. Equipment Required....................................................................................2-1
2-2. Electrical Adjustments Using the Service Mode ........................................2-1
2-3. White Balance Adjustment .......................................................................2-25
2-4. A/D Calibration Adjustment .....................................................................2-25
2-5. Video Processor Adjustment.....................................................................2-26
2-6. Watch Error Adjustment ...........................................................................2-26
2-7. Switching Regulator (APS-179) Adjustment............................................2-27
2-7-1. Oscillating Frequency Adjustment...........................................2-27
2-7-2. Voltage Adjustment with Minimum Load ...............................2-27
3. Trouble Shooting
3-1. Judging Method When Image Does Not Appear ........................................3-1
3-1-1. Flow chart...................................................................................3-1
3-1-2. How to Distinguish the Trouble of the PDP Unit. .....................3-2
3-2. Self Diagnosis Function ..............................................................................3-3
3-2-1. Outline........................................................................................3-3
3-2-2. Criteria for Judgment of Abnormality........................................3-3

2PFM-42B2/42B2E
4. Semiconductors................................................................................. 4-1
5. Spare Parts
5-1. Notes on Repair Parts..................................................................................5-1
5-2. Exploded Views ..........................................................................................5-2
5-3. Electrical Parts List .....................................................................................5-8
5-4. Supplied Accessories ................................................................................5-36
6. Block Diagrams
B (1/6), QA(1/2)..........................................................................................6-1
B (2/6), QA (2/2), B1 ..................................................................................6-2
B (3/6) .........................................................................................................6-3
B (4/6) .........................................................................................................6-4
B (5/6), S1, YA, YB....................................................................................6-5
B (6/6) .........................................................................................................6-6
APS-179 ......................................................................................................6-7
7. Diagrams
7-1. Frame Schematic Diagram ..........................................................................7-2
Frame...........................................................................................................7-2
7-2. Schematic Diagrams and Printed Wiring Boards........................................7-3
Schematic Diagrams
QA ...............................................................................................................7-3
B (1/13) .......................................................................................................7-7
B (2/13) .......................................................................................................7-8
B (3/13) .......................................................................................................7-9
B (4/13) .....................................................................................................7-10
B (5/13) .....................................................................................................7-11
B (6/13) .....................................................................................................7-12
B (7/13) .....................................................................................................7-13
B (8/13) .....................................................................................................7-14
B (9/13) .....................................................................................................7-15
B (10/13) ...................................................................................................7-16
B (11/13) ...................................................................................................7-17
B (12/13) ...................................................................................................7-18
B (13/13) ...................................................................................................7-19
B1 ..............................................................................................................7-25
YA .............................................................................................................7-26

3
PFM-42B2/42B2E
YB .............................................................................................................7-26
S.................................................................................................................7-27
APS-179 (1/4) ...........................................................................................7-28
APS-179 (2/4) ...........................................................................................7-29
APS-179 (3/4) ...........................................................................................7-30
APS-179 (4/4) ...........................................................................................7-31
Printed Wiring Boards
QA ...............................................................................................................7-3
B ..................................................................................................................7-4
B1 ..............................................................................................................7-24
YA .............................................................................................................7-26
YB .............................................................................................................7-26
S.................................................................................................................7-27
APS-179 ....................................................................................................7-32

1-1
PFM-42B2/42B2E
Section 1
Service Informations
1-1. Board Layout
B1
YB
YA
QA
B
S
S
S
S
SWITCHING
REGULATOR
(APS-179)

1-2 PFM-42B2/42B2E
1-2. Disassembly
1-2-1. QA Board Removal
3Two screws
(+PSW3 x8)
1Loosen two panel
stopper screws.
Connector
2QA board
4Blank panel
*Only AEP model.

1-3
PFM-42B2/42B2E
1-2-2. Rear Cover Assy Removal
8Rear cover assy
3Fourteen screws
(+BVTP4 x16)
4Four screws
(+BVTP4 x16)
1Four screws
(+PSW6 x20)
5Two screws
(+PSW3 x8)
6Screw
(+PSW3 x8)
7Three screws
(+PSW3 x8)
2Four knobs
Main chassis
Top side
Conductive cushion

1-4 PFM-42B2/42B2E
1-2-3. Bezel Assy and YA, YB Boards Removal
9Eighteen screws
(+BVTP4 x16)
0Main chassis
!- Filter bracket (V)
1Screw
(+BVTP4 x16)
!= Two screws
(+BVTP4 x16)
3Two screws
(+P2 x5)
![ Two screws
(+BVTP3 x12)
!] Earth plate
!\ YA board
!- Bezel assy
Wire (for reference)
Note) If two wires attached on the glass surface of
plasma display panel, be careful not to cut them.
2YB board bracket
4YB board
5Two screws
(+BVTP4 x16)
7Screw
(+PSW4 x8)
8Screw
(+BVTP4 x16)
6Retainer
CN8501
CN8601
Top side
Conductive cushion

1-5
PFM-42B2/42B2E
1-2-4. B Block Assy Removal
2S/C cover
Remove the lithium battery
in the direction of arrow.
Lithium
battery (CR2025)
Battery holder
Removal of Lithium Battery
4Screw
(+PS3 x6)
1Four screws
(+BVTP3 x12)
5B block assy
3Two PC board hinges
GND
CN106
CN110
CN109
CN112
CN102
CN103
CN8001
Main chassis
Top side
Conductive cushion

1-6 PFM-42B2/42B2E
1-2-5. B and B1 Boards Removal
* Remove the B block assy. (Refer to 1-2-4.)
8Fan bracket
!- B1 board
9Six screws
(+PS3 x6)
1Three screws
(+PS3 x6)
2Two screws
(+PS2 x6)
7Screw
(+PS3 x6)
3Two screws
4Two screws
5Two screws
6S/C panel
0B board

1-7
PFM-42B2/42B2E
1-2-6. Extension Board Connection
S/C cover
B1 board
Connector (CN6102)
Extension board
(Mounted circuit board, Z
Part No : A-1391-125-A)
Main chassis
Top side
Conductive cushion

1-8 PFM-42B2/42B2E
1-2-7. Switching Regulator (APS-179 board) Removal
1Screw
(+PSW4 x16)
2S board
3S board bracket
4Two screws
(+PSW3 x8)
6Two DC fan,
Two DC fan bracket (R) (L)
5Screw
(+PSW3 x8)
7Switching regulator
(APS-179 board) CN23
CN68
CN7
CN42
CN52
CN9003
CN9002
CN9001
CN9004
CN33
Main chassis
Top side
Conductive cushion

1-9
PFM-42B2/42B2E
1-2-8. Plasma Display Panel Unit Removal (1/2)
* Remove the Bezel assy. (Refer to 1-2-3.)
* Remove the B block assy. (Refer to 1-2-4.)
* Remove the switching regulator. (Refer to 1-2-7.)
Remove those parts according to
numbers 1through @/.0Screw (+PSW4 x8)
9Two screws (+PSW5 x40)
4Two screws (+PSW5 x40)
5Screw (+PSW4 x8)
!\ Screw (+PSW3 x16)
!, Three screws
(+PSW4 x16)
!. Three S boards
@/ Three S board brackets
Wire (for reference)
!; S board
!' S board bracket
!- Corner bracket (B)
6Corner bracket (A)
7Two screws
(+BVTP4 x16)
!= Two screws
(+PSW5 x40)
![ Screw
(+PSW4 x8)
2Screw
(+PSW4 x8)
1Two screws
(+PSW5 x40)
8Inlet bracket
!] Corner bracket (A)
3Corner bracket (B)
Note) If two wires attached on the glass surface of
plasma display panel, be careful not to cut them.
@- Shield sheet
Main chassis
Top side
Conductive cushion

1-10 PFM-42B2/42B2E
1-2-9. Plasma Display Panel Unit Removal (2/2)
Disconnect all of the connectors specified in the illustration. After that, package it
according to Section 1-2-10.
CN1
CN6
CN42
CN52
CN23
CN22
CN32
CN33
Main chassis
Top side
Conductive cushion

1-11
PFM-42B2/42B2E
1-2-10.Plasma Display Panel Unit Packing When Sending it to FUJITSU
3Eight screws (M5 x50)
!\ Outer box (Cap)
8Inner box (Cap)
7Upper pad (B)
9Two joint parts
0Two joint parts
5Inner box (bottom)
![ Inner box (Cap)
!= Lower pad (A)
!' Two joint parts
!- Outer box (Bottom)
!] Upper pad (A)
!; Two joint parts
Notch
Notch
4Plasma display panel unit
*Glass side is lower. 6Plasma display panel unit
*Glass side is upper.
2Lower pad (B)
1Eight spacers
Polyethylene sheet Silica gel
Type : FPF11R-KM6
Name : Spacer for fixing
bracket (100 unit)

1-12 PFM-42B2/42B2E
1-2-11.Power Cord
Warning on power connection
Use the proper power cord for your local power supply.
United States, Continental United Kingdom, Ireland, Japan
Canada Europe Australia, New Zealand
Plug type VM0233 COX-07 636 _a) VM1296
Female end VM0089 COX-02 VM0310B VM303B VM1313
Cord type SVT H05VV-F CEE (13) 53rd (O. C) HVCTF
Minimum cord set rating 10A/125V 10A/250V 10A/250V 10A/125V
Safety approval UL/CSA VDE VDE DENTORI
a) Note : Use an appropriate rating plug which is applied to local regulations.