KDF-42WE655, KDF-50WE655 - Sony TV Service Manual (repair manual)

MODEL NAME 

REMOTE COMMANDER 

DESTINATION  

Specifi cations ................................................................................. 4

Warnings and Cautions .................................................................. 6

Safety Check-Out ........................................................................... 7

Self-Diagnostic Function................................................................. 8

SECTION 1:  DISASSEMBLY............................................................... 13

1-2.  Center Pillar Removal .......................................................... 13

1-3. Service Position .................................................................. 14

1-4.  Fan and Chassis Assembly Removal................................... 14

1-5.  Power Supply Block Removal (Lamp Drive Unit)................. 15

1-6.  Fan, RF Antenna Switch, and P Board Removal ................. 15

1-7.  U Board Removal................................................................. 16

1-8.  F Board and G1 Board Board Removal ............................... 16

1-9.  A Board and KD Board Removal.......................................... 17

1-10. Q Box Assembly, and B Board Removal.............................. 17

1-11. G2 Board Removal............................................................... 18

1-12. T Board Removal ................................................................. 18

1-13. Woofer  Removal .................................................................. 18

1-14. H3 Board Removal (KDF-42WE655 Only)........................... 19

1-15. Front Cover Assembly Removal........................................... 19

1-15-1. Replacing the Lamp................................................. 19

1-16. HM Board Removal (KDF-42WE655 Only).......................... 20

1-17. H3 Board and HM Board Removal (KDF-50WE655 Only)... 20

1-18. H2 Board Removal............................................................... 21

1-19. H1 Board Removal............................................................... 21

1-20. Screen Mirror Block Assembly Removal .............................. 22

1-21. Mirror Cover Assembly and Speaker Removal .................... 23

1-21-1. Diffusion plates (Screens) Tape Method.................. 23

Wire Dressing ............................................................................... 24

SECTION 2:  CIRCUIT ADJUSTMENTS.............................................. 28

2-1.  Setting the Service Adjustment Mode .................................. 28

2-2.  Service Adjustment Mode Memory ...................................... 28

2-3.  Memory Write Confi rmation Method .................................... 29

2-4.  Remote Adjustment Buttons and Indicators ......................... 29

2-5.  H/V Center Confi rmation and Adjustments .......................... 30

2-6. Service Data......................................................................... 31

2-7. ID Map Table ........................................................................ 33

SECTION 3:  DIAGRAMS..................................................................... 34

3-1.  Circuit Boards Location ........................................................ 34

Schematic Diagrams Information ......................................... 34

3-3. Block Diagrams .................................................................... 36

3-4.  Schematics and Supporting Information .............................. 37

A Board Schematic Diagram (1 of 3).................................... 37

A Board Schematic Diagram (2 of 3).................................... 38

A Board Schematic Diagram (3 of 3).................................... 39

B Board Schematic Diagram (1 of 6) ................................... 42

B Board Schematic Diagram (2 of 6) ................................... 43

B Board Schematic Diagram (3 of 6) ................................... 44

B Board Schematic Diagram (4 of 6) ................................... 45

B Board Schematic Diagram (5 of 6) ................................... 46

B Board Schematic Diagram (6 of 6) ................................... 47

G2 Board Schematic Diagram (1 of 2) ................................. 50

G2 Board Schematic Diagram (2 of 2) ................................. 51

P Board Schematic Diagram ............................................... 54

KD Board Schematic Diagram ............................................. 55

G1 Board Schematic Diagram (1 of 2) ................................. 57

G1 Board Schematic Diagram (2 of 2) ................................. 58

F Board Schematic Diagram ................................................ 61

H1 Board Schematic Diagram.............................................. 65

H2 Board Schematic Diagram.............................................. 67

H3 Board Schematic Diagram.............................................. 68

T Board Schematic Diagram ................................................ 69

U Board Schematic Diagram................................................ 70

3-5. Semiconductors ................................................................... 72

SECTION 4:  EXPLODED VIEWS ........................................................ 73

4-1. Cover.................................................................................... 73

4-2.  Bottom Cabinet (KDF-42WE655 Only) ................................ 74

4-3.  Bottom Cabinet (KDF-50WE655 Only) ................................ 75

4-4. Chassis ................................................................................ 76

4-5.  Optical Unit Block................................................................. 77

SECTION  5:  ELECTRICAL PARTS LIST........................................... 78

120V AC, 60Hz 
230W
Under 20W
HDMI IN
Video - 1080i, 720p, 480p, 480i
Audio - Two channel linear PCM 32, 44.1 and 48 kHz, 
             16, 20, and 24 bit
Video (IN)
4 total (1 on front panel)
1Vp-p, 75ohms unbalanced, sync negative 
S Video (IN)
4 total (1 on front panel)
Y: 1Vp-p, 75ohms unbalanced, sync negative 
C: 0.286Vp-p (Burst signal), 75ohms
Audio (IN)
7 total (1 on front panel) 
500 mVrms (100% modulation)
Impedance:47 kilo ohms
Audio (VAR/FIX) Out
1 total 
500 mVrms at the maximum volume setting (Variable)
500 mVrms (Fixed)
Impedance (Output):2 kilo ohm
   Note: Audio Out jacks are operable only when 
   the TV’s speaker is set to Off.

Control S (IN)
1 total 
Minijack
Control S (OUT)
1 total 
Minijack
Component Video Input
2 (Y, P

B

, P

R

)

Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative 
P

B

:

 0.7 Vp-p, 75 ohms;

P

R

: 0.7 Vp-p, 75 ohms 

RF Inputs
2 total 
Digital Audio Optical Output (PCM/Dolby Digital)
1 total 
Optical Rectangular (1)
CableCARD Slot
1 total 
PCMCIA Type I/II

1,200 x 818 x 314 mm

1,376 x 927.2 x 379 mm

47

1/4

 x 32 

1/4

 x 12 

1/3

 in

54 

1/8

 x 36 

1/2

 x 15 in

32.5 kg

39 kg

71 lbs 10 oz

85 lbs 14 oz

5W x 2

20W

CableCARD

™

 is a trademark of Cable Television 

Laboratories, Inc.

TruSurround, SRS and the ( )

®

 symbol are trademarks 

of SRS Labs, Inc.
TruSurround technology is incorporated under license 
from SRS Labs, Inc.
BBE and BBE Symbol are trademarks of BBE Sound, 
Inc. and are licensed by BBE Sound, Inc. under U.S. 
Patent No. 4,638,258 and 4,482,866.

Manufactured under license from 
Dolby Laboratories Licensing 
Corporation. Dolby and the double-D 
symbol are trademarks of Dolby 
Laboratories Licensing Corporation.

This TV incorporates High-Definition 
Multimedia Interface (HDMI

™

) 

technology. HDMI, the HDMI logo 
and High-Definition Multimedia 
Interface are trademarks or registered 
trademarks of HDMI Licensing LLC.

WEGA, Steady Sound, Digital Reality Creation, 
CineMotion, Memory Stick, Memory Stick Duo, 
Memory Stick PRO, Memory Stick PRO Duo, 
MagicGate, MID and Twin View are trademarks of Sony

 

Corporation.

American TV standard, NTSC
ATSC compliant 8VSB, ATSC (8VSB terrestrial)
ANSI/SCTE 07 2000 QAM on cable 

Terrestrial 2-69/ Cable TV: 1-125 (analog)
Terrestrial: 2-69/ Cable TV: 1-135 (digital)

42 inches (KDF-42WE655 Only) 
50 inches (KDF-50WE655 Only)

75-ohm external antenna terminal for VHF/UHF

3 LCD Panels, 1 lens projection system

0.87 inch TFT LCD panel Approx. 3.28 million dots 
(1,042,168 pixels)

High Performance, large diameter hybrid lens F2.4

UHP lamp, 100W XL-2100 or XL2100U

Remote Commander RM-Y915
Two Size AA (R6) Batteries