KP-51WS505 - Sony TV Service Manual (repair manual)

        MODEL NAME 

REMOTE COMMANDER 

DESTINATION  

Specifi cations ................................................................................. 4
Warnings and Cautions .................................................................. 5
Safety Check-Out ........................................................................... 6
Self-Diagnostic Function................................................................. 7

SECTION 1:  DISASSEMBLY............................................................... 10

1-1.  Rear Board Removal............................................................ 10
1-3. Service Position ................................................................... 10
1-2. Chassis Assembly Removal................................................. 10
1-6.  H3 Board Removal................................................................11
1-4.  H2 Board Removal................................................................11
1-5.  H1 Board Removal................................................................11
1-7.  Mirror Cover Removal .......................................................... 12
1-9.  SR Board Removal .............................................................. 12
1-10. AD Board and B Board Removal ......................................... 12
1-8. Beznet Assembly Removal .................................................. 12
1-11. G Board Removal................................................................. 13
1-12. Terminal Board, A Board, D Board, U Board, 

and UD Board Removal ....................................................... 13

1-13. Picture  Tube  Removal.......................................................... 14
1-14. High-Voltage Cable Installation and Removal...................... 14

2-1.  Screen Voltage Adjustment (Coarse Adjustment) ................ 15
2-2.  Screen (G2) Adjustment (Fine Adjustment).......................... 15
2-3.  Defl ection Yoke Tilt Adjustment ............................................ 15
2-4. Focus Lens Adjustment........................................................ 16
2-5. Focus VR Adjustment........................................................... 16
2-6.  2-Pole Magnet and Centering Magnet Adjustment .............. 17
2-7. Centering Magnet Adjustment.............................................. 17
2-8. 4-Pole Magnet Adjustment ................................................... 17
2-9. Blue Defocus Adjustment ..................................................... 17
2-10. Electrical Adjustments by Remote Commander................... 18
2-11. Adjustable Service Data Lists .............................................. 19
2-12. Registration  Adjustment ....................................................... 30
2-13. PJE Adjustment (Sub Defl ection Adjustment) ...................... 32
2-14. Auto Convergence Offsets ................................................... 34
2-15. Auto Registration Error Codes ............................................. 35

D BOARD ..................................................................................... 37
3-1.  HV Regulation Circuit Check and Adjustment ..................... 37
3-2.  HV Hold Down Circuit Operation Check and Adjustment .... 37
G BOARD ..................................................................................... 38
3-3.  +B Max Voltage Confi rmation .............................................. 38
3-4.  +B OVP Confi rmation........................................................... 38

SECTION 4:  CIRCUIT ADJUSTMENTS.............................................. 39

4-1. Blue Offset Adjustment......................................................... 39
4-2.  P & P Sub Contrast Adjustment (Video) (SCON) ................. 39
4-3.  P & P Sub Contrast Adjustment (RF) (SCON) ..................... 39
4-4.  P & P Sub-Hue and Sub-Color Adjustment 

(Video) (SHUE, SCOL) ........................................................ 39

(RF) (SHUE, SCOL)............................................................. 40

SECTION 5:  DIAGRAMS..................................................................... 41

5-1.  Circuit Boards Location ........................................................ 41
5-2.  Printed Wiring Boards and 

Schematic Diagrams Information ......................................... 41

5-3. Block Diagrams .................................................................... 43
5-4.  Schematics and Supporting Information  ............................. 46

CR Board Schematic Diagram  ............................................ 46
CB Board Schematic Diagram  ............................................ 47
CG Board Schematic Diagram ............................................ 48
V Board Schematic Diagram ............................................... 49
G Board Schematic Diagram ............................................... 50
UD Board Schematic Diagram  ............................................ 52
A Board Schematic Diagram (1 of 3).................................... 54
A Board Schematic Diagram (2 of 3).................................... 55
A Board Schematic Diagram (3 of 3).................................... 56
U Board Schematic Diagram ............................................... 60
AD Board Schematic Diagram  ............................................ 63
B Board Schematic Diagram (1 of 2) ................................... 65
B Board Schematic Diagram (2 of 2) ................................... 66
D Board Schematic Diagram................................................ 69
SR Board Schematic Diagram  ............................................ 72
H2 Board Schematic Diagram ............................................. 72
H1 Board Schematic Diagram ............................................. 74
H3 Board Schematic Diagram ............................................. 75

5-5.  IC Block Diagrams ............................................................... 76

A Board ................................................................................ 76
B Board ................................................................................ 77
CR Board ............................................................................. 78
CG Board ............................................................................. 78
CB Board.............................................................................. 78
U Board ................................................................................ 79

5-6. Semiconductors ................................................................... 80

SECTION 6:  EXPLODED VIEWS ........................................................ 81

6-1. Cover.................................................................................... 81
6-2. Chassis ................................................................................ 82
6-3. Picture Tube ......................................................................... 83

SECTION 7:  ELECTRICAL PARTS LIST............................................ 84

120V AC, 60Hz 
 

 

230W
Under 1 W

DVI-HDTV
1 terminal, 3.3V T.M.D.S., 50 ohms
The DVI-HDTV input terminal is compliant with the EIA-861 stand-
ard and is not intended for use with personal computers.

Video (IN)
4 total (1 on front panel) 
1Vp-p, 75ohms unbalanced, sync negative 

S Video (IN)
3 total (1 on front panel) 
Y: 1Vp-p, 75ohms unbalanced, sync negative 
C: 0.286Vp-p (Burst signal), 75ohms

Audio (IN)
6 total (1 on front panel)
500 mVrms (100% modulation)
Impedance:47 kilo ohms

3 picture tubes, 3 lenses, horizontal in-line system

  7-inch high-brightness monochrome tubes (6.3 raster size), 

 

with optical coupling and liquid cooling system.

  High performance, large diameter hybrid lens F1.1

  75 ohm external terminal for VHF/UHF

 NTSC, 

American 

TV 

Standard

VHF: 2-13/ UHF: 14-69/ CATV: 1-125

Design and specifi cations are subject to change without notice.

51 inches 

Remote Control RM-Y909
Batteries (2) size AA (R6)

A/V Cable (VMC-810/820/830 HG)
Audio Cable (RKC-515HG)
Component Video Cable (VMC-10/30 HG)
Control S Cable (RK-G69HG)
AV Receiver (STR-V555ES or equivalent)

Audio (VAR/RIX)
1 total 
500 mVrms at the maximum volume setting (Variable)
500 mVrms (Fixed)
Impedance (Output):1 kilo ohm

TV Out
1 total 
Video: 1 Vp-p 75 ohms unbalanced, Sync negative
Audio: 500 m Vrms (100% modulation)
Impedance (output): 1 kilo ohms 

Control S (IN/OUT)
1 total 
Minijacks

Component Video Input
2 (Y, PB, PR)
Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative 
PB: 0.7 Vp-p, 75 ohms;
PR: 0.7 Vp-p, 75 ohms 

RF Inputs
2 total 

Converter
1 total 

 

 

20W x 2 

 1196 x 1311 x 631 mm
 47

1/8

 x 51

5/8

 x 24

7/8

 in

 76 

kg

 

167 lbs 9 oz

Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield, or carbon painted on the CRT, after 
removing the anode.

An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of 
this receiver is directly connected to the ac power line.

!

Components identifi ed by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for safe 
operation. Replace these components with Sony parts whose part numbers appear as shown in this manual or in supplements 
published by Sony. Circuit adjustments that are critical for safe operation are identifi ed in this manual. Follow these procedures 
whenever critical components are replaced or improper operation is suspected.