Sony VPL-VW12HT User manual

.............. ......... ....................
SERVICE MANUAL
.............. ......... ....................
MODEL DEST. CHASSIS NO. MODEL DEST. CHASSIS NO.
VPL-VW12HT WORLD RM-PJVW10 WORLD
VIDEO PROJECTOR

VPL-VW12HT
!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.
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
TOTHE AC POWER LINE.
SAFETY-RELATED COMPONENTWARNING !!
COMPONENTS IDENTIFIED BYA !!
!!
!MARKONTHESCHEMATIC
DIAGRAMS, EXPLODEDVIEWS AND INTHE PARTS LIST ARE
CRITICAL TO SAFE OPERATION. REPLACE THESE COMPO-
NENTSWITH SONY PARTSWHOSE 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
TRANSFORMATEURD’ISOLEMENTDOITETREUTILISÉLORS
DETOUT 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,LESVUES 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
NUMÉRODE PIÈCE EST INDIQUÉDANSLEPRÉSENTMANUEL
OU DANS DES SUPPLÉMENTS PUBLIÉS PAR SONY.

VPL-VW12HT
For the customers in the Netherlands
Voor de klanten in Nederland
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).
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)

1
VPL-VW12HT
TABLE OF CONTENTS
1. Service Informations
1-1. Circuit Boards Location ..............................................................................1-1
1-2. Cabinet Assy Removal ................................................................................1-2
1-3. Front Panel Assy Removal..........................................................................1-2
1-4. G and GA Boards Removal.........................................................................1-3
1-5. C Board Removal .......................................................................................1-3
1-6. B and Q Boards Removal............................................................................1-4
1-7. Optical Unit Assy Removal ........................................................................1-4
1-8. TH, U, BM and V Boards Removal ............................................................1-5
1-9. Power Block Removal.................................................................................1-5
1-10. Lens Assy Removal.....................................................................................1-6
1-11. Prism Block Removal .................................................................................1-6
1-12. Extension Boards ........................................................................................1-7
1-13. Power Cord..................................................................................................1-8
1-14. Software Writing Procedure........................................................................1-8
2. Electrical Adjustments
2-1. Preparations.................................................................................................2-1
2-1-1. Equipment Required...................................................................2-1
2-1-2. Reset the Air Filter .....................................................................2-1
2-1-3. Setting the Factory Mode ...........................................................2-1
2-2. RGB VCOM Adjustment ............................................................................2-1
2-3. Signal Level Adjustment.............................................................................2-1
2-3-1. SUB-BRIGHT (NTSC) Adjustment ..........................................2-1
2-3-2. SUB-CONT, HUE and COLOR Adjustment............................2-1
2-3-2-1.SUB CONT, HUE and COLOR (VIDEO)
Adjustment ...................................................................2-1
2-3-2-2.SUB CONT, HUE and COLOR (Component)
Adjustment ...................................................................2-2
2-3-2-3.SUB CONT, HUE and COLOR (DTV)
Adjustment ...................................................................2-2
2-3-2-4.SUB CONT, HUE and COLOR (15k RGB)
Adjustment ...................................................................2-2
2-3-3. Signal Center and the Amplitude Adjustment ...........................2-3
2-3-4. ODD/EVEN Level Adjustment..................................................2-3
2-3-5. RGB High Gain/Bias Adjustment ..............................................2-3
2-3-5-1.RGB High Gain/Bias Adjustment ................................2-3
2-3-5-2.RGB W/B Low and Custom Adjustment .....................2-4

2VPL-VW12HT
2-4. VIDEO W/B Adjustment ............................................................................2-4
2-4-1. Component W/B Hight Adjustment ...........................................2-4
2-4-2. Component W/B Low Adjustment.............................................2-4
2-4-3. W/B Low Custom Adjustment ...................................................2-4
2-5. Adjustments in Replacement of Prism and Optical Unit ............................2-5
2-5-1. V-COM Adjustment ...................................................................2-5
2-5-2. Polarization Plate Adujustment ..................................................2-5
2-5-3. 3D GAMMA Adujustment (Outline) .........................................2-5
2-5-4. 3D GAMMA Adujustment ........................................................2-5
3. Descriptions of Circuit Board Operations
3-1. G/GA/F Boards .......................................................................................... 3-1
3-1-1. Outline .............................................................................................3-1
3-1-2. Detailed Explanation .......................................................................3-1
3-1-2-1. Active Filter Unit .........................................................3-1
3-1-2-2. Main Converter Unit ....................................................3-1
3-1-2-3. Fan Drive Unit..............................................................3-1
3-1-2-4. Sub Coverter Unit ........................................................3-2
3-1-2-5. The Detection of the Fan's Rotation Speed ..................3-2
3-2. B Board .......................................................................................................3-5
3-2-1. Main IC Functions ...........................................................................3-5
3-2-1-1. MC141627FT (IC3010), Digital Comb Filter..............3-5
3-2-1-2. uPD64082 (IC3014), 3D Comb Filter..........................3-5
3-2-1-3.CXA2123 (IC3006), Chroma Decoder &
Sync Processing ..........3-5
3-2-2.Signal Flows....................................................................................3-5
3-2-2-1.VIDEO Signal Flows ....................................................3-5
3-2-2-2.15k-COMPONENT Signal/15k-RGB Signal Flows.....3-6
3-3. Q Board .......................................................................................................3-6
3-3-1. Outline of Main ICs..........................................................................3-6
3-3-1-1. TLC5733 (IC4029), AD Converter for DRC Use........3-6
3-3-1-2. CXD2095AQ (IC4033), DRC Processing ...................3-6
3-3-1-3. CXA2101AQ (IC4013), HD Interface, RGB Matrix...3-6
3-3-1-4. M52347FP (IC4006), SYNC SEPARATOR ...............3-7
3-3-1-5. EL4332C (IC4007), RGB Switch, 6dB Amp,
75 Ohm Driver .....3-7
3-3-2. Video Signal Flow ............................................................................3-7
3-3-2-1. VIDEO Signal Flow .....................................................3-7
3-3-2-2. HDTV/DTV (YPbPr, RGB) Double
Speed Component (YUV) Signal Flows...........3-7
3-3-2-3. Computer Signal (RGB) Flows ....................................3-7
3-3-3. SYNC Processing Flows ..................................................................3-7
3-3-3-1. When VIDEO Signals and 15k COMPONENT
Signals are Processed ...3-7

3
VPL-VW12HT
3-3-3-2. When 15k-RGB Signal are Processed..........................3-8
3-3-3-3. When HDTV/DTV (YPbPr, GBR) Double
Speed Composite Signals are Input ........3-8
3-3-3-4. When Computer Signals are Processed........................3-8
3-3-4. RS232C Communication Buffer ......................................................3-8
3-3-5. Reception of Remote Control Signal (SIRCS Signal)......................3-9
3-3-6. Power Protector ................................................................................3-9
3-3-7. B Board, Q Board Block Diagram ...................................................3-9
3-3-8. Signal Flow.......................................................................................3-9
3-3-8-1.C-Video (NTSC3.58) ....................................................3-9
3-3-8-2.C-Video (PAL, PAL-M, PAL-N)................................3-10
3-3-8-3.C-Video (SECAM, NTSC4.43) ..................................3-10
3-3-8-4.S-Video .......................................................................3-11
3-3-8-5.15k-Component...........................................................3-11
3-3-8-6.Double Speed Component...........................................3-12
3-3-8-7.HDTV (GBR, YPbPr) .................................................3-12
3-3-8-8.15k-RGB .....................................................................3-13
3-3-8-9.PC-RGB ......................................................................3-13
3-4. C Board .....................................................................................................3-14
3-4-1.A/D Converter Unit .........................................................................3-14
3-4-2.SCAN Converter .............................................................................3-14
3-4-2-1.Internal Block Diagram
(Simplified diagram: Unused parts omitted)........3-14
3-4-2-2.Graphics Port Block ....................................................3-14
3-4-2-3.Display Port Block ......................................................3-15
3-4-2-4.OSD MIX Processing..................................................3-15
3-4-2-5.Microprocessor Block .................................................3-15
3-4-3.Functions of Main ICs .....................................................................3-16
3-4-3-1.CXD9512 (IC5304), 3D GAMMA ADJ, TG .............3-16
3-4-3-2.CXD3504R (IC5403), Dot-Line Inversion .................3-16
3-4-3-3.ADV7123 (IC5501, 5502), D/A Converter.................3-16
3-4-3-4.M52749 (IC5504, 5505), RGB Amp ..........................3-16
3-4-3-5.CXA3512R (IC5601, 5602, 5701, 5702, 5801, 5802),
LCD Driver ..3-17
3-4-3-6.LCX037 LCD Panel ....................................................3-17
3-4-4.Signal Flow......................................................................................3-18
3-4-4-1.Between CXD9512 to LCD Panel ...............................3-18
3-4-4-2.LCD Panel Write Sequence ........................................3-19
3-4-5.C Board Block Diagram ..................................................................3-20
3-4-6.Memory Composition......................................................................3-20
3-4-6-1.Memory Composition .................................................3-20
3-4-6-2.Memory Structure and Data Access............................3-22
3-4-6-3.Data Access when VIDEO MEM OFF is Selected
(When Status Memory No.1 is Selected) .....3-24
3-4-6-4.VIDEO MEM Data Access when 1 to 6 is
Selected (When Status Memory No.1 is Selectsd) ....3-25
3-4-6-5.CPU Peripheral............................................................3-26

4VPL-VW12HT
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 for Boards .............................................................5-6
5-4.Packing Materials ...............................................................................5-30
6. Block Diagrams
Overall ......................................................................................................6-1
Q................................................................................................................6-2
B ................................................................................................................6-3
BM ............................................................................................................6-3
C ................................................................................................................6-4
TH .............................................................................................................6-5
U................................................................................................................6-5
V................................................................................................................6-5
H................................................................................................................6-6
NF .............................................................................................................6-6
NR .............................................................................................................6-6
F ................................................................................................................6-7
G................................................................................................................6-7
GA.............................................................................................................6-7
7. Diagrams
7-1. Frame Schematic Diagram ..........................................................................7-1
Frame ........................................................................................................7-1
7-2. Schematic Diagrams and Printed Wiring Boards........................................7-2
Schematic Diagrams
Q (1/6) .......................................................................................................7-4
Q (2/6) .......................................................................................................7-5
Q (3/6) .......................................................................................................7-6
Q (4/6) .......................................................................................................7-7
Q (5/6) .......................................................................................................7-8
Q (6/6) .......................................................................................................7-9
B (1/3) .....................................................................................................7-12
B (2/3) .....................................................................................................7-13
B (3/3) .....................................................................................................7-14
H..............................................................................................................7-16
NF ...........................................................................................................7-17

5
VPL-VW12HT
NR ...........................................................................................................7-17
TH ...........................................................................................................7-17
U..............................................................................................................7-17
V..............................................................................................................7-17
C (1/9) .....................................................................................................7-20
C (2/9) .....................................................................................................7-21
C (3/9) .....................................................................................................7-22
C (4/9) .....................................................................................................7-23
C (5/9) .....................................................................................................7-24
C (6/9) .....................................................................................................7-25
C (7/9) .....................................................................................................7-26
C (8/9) .....................................................................................................7-27
C (9/9) .....................................................................................................7-28
BM ..........................................................................................................7-31
F ..............................................................................................................7-33
G (1/3).....................................................................................................7-33
G (2/3).....................................................................................................7-34
G (3/3).....................................................................................................7-35
GA...........................................................................................................7-36
Printed Wiring Boards
Q................................................................................................................7-3
B ..............................................................................................................7-11
H..............................................................................................................7-15
NF ...........................................................................................................7-17
NR ...........................................................................................................7-17
TH ...........................................................................................................7-17
U..............................................................................................................7-17
V..............................................................................................................7-17
C ..............................................................................................................7-18
BM ..........................................................................................................7-30
F ..............................................................................................................7-32
G..............................................................................................................7-32
GA...........................................................................................................7-36

1-1
VPL-VW12HT
Section 1
Service Informations
1-1. Circuit Boards Location
F
H
U
C
Q
V
TH
B
BM
NF
POWER BLOCK
GA
G
NR

VPL-VW12HT
1-2
1-2. Cabinet Assy Removal
1-3. Front Panel Assy Removal
3Two screws (+B3 x6)
4Two screws (+B3 x6)
5Two screws (+B3 x6)
CN7001
6Cabinet assy
1Push in claw
Driver _
2Lens cover (TP)
2Lens cover (BT)
CN5008
4Front panel assy
3Two screws (+B3 x6)
1Two screws (+BVTP3 x8)

1-3
VPL-VW12HT
1-4. G and GA Boards Removal
1-5. C Board Removal
1Two screws (+B3 x6)
2Holder (G)
4G board
CN2001
CN2002
CN2010
CN2009
CN2008
5GA board
3Two screws
(+BVTP3 x8)
1Five screws (+B3 x6)
2C board
Connector (CN4002)
CN5011
CN5007
CN5006
CN5005
CN5004
CN5010
CN5601
CN5801
CN5701
Connector (CN4004)

VPL-VW12HT
1-4
1-6. B and Q Boards Removal
• Remove the C Board (Refer to 1-5.).
1-7. Optical Unit Assy Removal
• Remove the C Board (Refer to 1-5.).
6Four screws (+BVTP3 x8)
5Q board
3B board
1Screw (+B3 x6)
2Holder (B)
4Two screws (+B3 x6)
7Connector panel
Cover (9P receptacle)
2Two screws (+PWH3 x6)
3Connector (2P)
1Six screws (+PSW4 x12)
4Optical unit assy

1-5
VPL-VW12HT
1-8.TH, U, BM andV Boards Removal
•Remove the B and Q Boards (Refer to 1-6.).
•Remove the optical unit assy (Refer to 1-7.).
1-9. Power Block Removal
•Remove the optical unit assy (Refer to 1-7.).
5Four screws (+B3 x6)
6BM board
1Screw (+B3 x6) 7Screw (+B3 x6)
2TH board 8Holder (V)
9V board
3Screw (+B3 x6)
4U board
1Four screws (+B3 x6)
3Three screws (+B3 x6)
2Duct
Holder (LPS)
Fin (VW)
4Power block
Connector (3P)

VPL-VW12HT
1-6
1-10. Lens Assy Removal
•Remove the C Board (Refer to 1-5.).
1-11. Prism Block Removal
•Remove the B and Q Boards (Refer to 1-6.).
•Remove the optical unit assy (Refer to 1-7.).
5Four screws (+PSW4 x8)
4Lens bracket
Remove the lens assembly attached
to the lens bracket instead of the single
lens assembly, if possible.
3Four screws (+B3 x8)
6Lens assy
2Lens holder
1Two screws (+B3 x8)
3Two screws (+B3 x8)
1Four screws (+B3 x8)
2Lens bracket
9Six screws
6Polarizer, R-OUT plate
7Polarizer, G-OUT plate
8Polarizer,
B-OUT plate
5Prism block
NOTE: Use extreme care not to tuch the
glass section of prism, LCD and
conductive section of the flexible
cable in particular.
!, Polarizer, B-IN plate
!\ Polarizer, G-IN plate
!= Polarizer, B-IN
plate
!- Washer
!/ Screw
!] Washer
![ Screw !; Screw
!' Washer
4Three screws (+K1.6 x2)

1-7
VPL-VW12HT
XQB
XBM
(2)Extension of B Board
Q 5 BM----used to three extension board
B 5 BM ----used to two extension board Q 5 C----used to one extension board
XBM
XBM
XQB
XQB
BM board
B board
Q board
1-12. Extension Boards
(1)Extension of Q Board
XQ
XC
Q board
C board
XBM
XBM
XBM
BM board
B board
XQB
XQB
XQB
XC
XQ
NOTE: Please fit it correctly into the
connector.
Otherwise, Power Board
would be destroyed.
A
A
XC Board : A-1391-182-A
XQ Board : A-1391-183-A
External Cable A: 1-900-262-34
XQB Board : A-1391-180-A
XBM Board : A-1391-181-A
External Cable A: 1-900-262-34

VPL-VW12HT
1-8
1-13. Power Cord
Use a proper power cord for your local power supply.
The United States, Continental UK, Ireland, Japan
Canada Europe Australia, New Zealand
Plug type VM0233 290B YP-12A COX-07 —1) YP332
Female end VM0089 386A YC-13B COX-02 VM0310B YC-13
Cord type SJT SJT H05VV-F H05VV-F N13237/CO-228 VCTF
Rated Voltage & Current 10A/125V 10A/125V 10A/250V 10A/250V 10A/250V 7A/125V
Safety approval UL/CSA UL/CSA VDE VDE VDE DENAN
1) Use the correct Plug for your country.
1-14. Software Writing Procedure
*: Windows is a registered trademark of Microsoft Corporation.
When the following IC is replaced, the writing job should be performed as described below.
Target ICs : Main CPU (IC5005)
Scanning ROM (IC5208)
(1) Writing the Main CPU
This section describes how to use this Windows application for upgrading software of main CPU (H8S/
2633). Jig and application software are available from Hitachi dealer all over the world.
Adaptor board : HS0008EASF4H
Windows interface software : HS6400FWIW4SF
1. Setup before starting the writing
Following setup is required before starting the writing.
1) Open the cabinet of the adaptor board of the jig.
2) Connect pin-2 and pin-3 with a jumper JP1.
3) Set switches as shown below.
S3-1 : 1 S4-1 : E
S3-2 : 1 S4-2 : E
S3-3 : 0 S4-3 : E
S3-4 : 1 S4-4 : D
S3-5 : 1 S4-5 : D
S3-6 : 1 S4-6 : D
S3-7 : 1 S4-7 : E
S3-8 : 1 S4-8 : E
4) Set Power switch as OFF (0).

1-9
VPL-VW12HT
Cable
RS-232C cable
(Supplied)
PC
VPL-VW12 : C board CN5002
Adaputor board (Tool)
1
8
12
19 20
2. Connection
Disconnect the AC power cord of the projector. With the power cord removed, connect equipments as
shown below. Connect all of the equipment and connect the AC power cord.
n
Cable must be modified as shown below. 20 pins cable is supplied with jig, modify the other side as 8
pins.
PJ Ref Flash jig
1 GND 2, 4, 6, 8, 10, 12, 14, 16
2 TXD 15
3 RXD 17
4RES 1
5 VIN 18, 20
6 FWR 3
7 MD1 5
8 MD2 7

VPL-VW12HT
1-10
3. How to use application
3-1.Double-click the application icon to start it up.
Projector must be set in the stand-by mode.
Set following items as shown below, and click OK.
Flash memory block information file : 2633f.inf
Timeout : 5 sec
Program Mode : Boot Program Mode
3-2.Following message will be displayed. Press the START/STOP button of the adaptor board, and click
OK.
3-3.The application sends the write control program to the device. Wait for a while.