KV-32HS20 - Sony TV Service Manual (repair manual)

kv-32hs20 service manual
Model
KV-32HS20
Pages
127
Size
15.82 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-32hs20.pdf
Date

Read Sony KV-32HS20 Service Manual online

TRINITRON
®
 COLOR TELEVISION
 SERVICE MANUAL 
  
   
 
DX-1A
 
CHASSIS
        MODEL NAME 
REMOTE COMMANDER 
DESTINATION  
CHASSIS NO. 
KV-32HS20
 
RM-Y183 US 
SCC-S47F-A
KV-36HS20
 RM-Y183  US SCC-S47E-A
KV-36HS20H
 RM-Y183  HAWAII SCC-S54C-A
KV-32XBR450
 RM-Y184 
US 
SCC-S47D-A
KV-32XBR450
 RM-Y184 
CND 
SCC-S48D-A
KV-36XBR450
 RM-Y184 
US 
SCC-S47C-A
KV-36XBR450
 RM-Y184 
CND 
SCC-S48C-A
KV-36XBR450H
 RM-Y184 
HAWAII 
SCC-S54B-A 
Self Diagnosis
Supported model
9-965-898-01
KV-32XBR450                                      
RM-Y184
— 2 —
KV-32HS20/36HS20/36HS20H/32XBR450/36XBR450/36XBR450H
TABLE OF CONTENTS
 Specifi 
cations ................................................................................. 3
 
Warnings and Cautions .................................................................. 4
 Safety 
Check-out ............................................................................ 5
 Self-Diagnostic 
Function................................................................. 6
1. Disassembly
 
1-1.  Rear Cover Removal .............................................................. 8
 1-2. 
Chassis 
Assembly 
Removal................................................... 8
 1-3. 
Service 
Position ..................................................................... 8
 1-4. 
Picture 
Tube 
Removal ............................................................ 9
 
Anode Cap Removal Procedure ..................................................... 9
2. Set-up Adjustments
 2-1. 
Beam 
Landing ...................................................................... 10
 2-2. 
V-Pin 
and 
V-Cen 
Adjustment ................................................ 11
 2-3. 
Convergence ........................................................................ 11
 
 
2-3.1.  Vertical and Horizontal Static Convergence ............. 11
 
 
2-3.2.  Operation of BMC (Hexapole) Magnet ..................... 11
  2-3.3. 
TLH 
Plate 
Adjustment .............................................. 11
 
 
2-3.4.  Screen Corner Convergence ................................... 12
  2-3.5. 
Dynamic 
Convergence 
Adjustment .......................... 12
 2-4. 
Focus 
Adjustment................................................................. 12
 2-5. 
Screen 
(G2).......................................................................... 12
 2-6. 
Picture 
Quality 
Adjustments ................................................. 13
 
 
2-6.1.  Video Input - Two Picture Sub Contrast 
    Adjustment ............................................................... 13
 
 
2-6.2.  Video Input - Sub Hue/Sub Color Adjustment.......... 13
 
 
2-6.3.  RF Input - Two Picture Sub Contrast Adjustment ..... 14
 
 
2-6.4.  RF Input - Sub Hue/Sub Color Adjustment .............. 14
 
2-7.  White Balance (CRT) and Sub Bright Adjustment ............... 15
 2-8. 
Raster 
Center 
Adjustment.................................................... 15
 2-9. 
Picture 
Distortion 
Adjustments............................................. 15
 
 
2-9.1.  NTSC (DRC) Full Mode Adjustment ........................ 15
 
 
2-9.2.  1080i HD Mode Adjustment ..................................... 16
 
 
2-9.3.  Vertical Compresses Mode Check and
    Confi rmation............................................................. 16
SECTION TITLE   
PAGE
3. Safety Related Adjustments
 
3-1.   RV8001, 8002, 8003 Confi rmation Method and 
  HV 
Service 
Adjustments ...................................................... 17
 
3-2.  B+ Max Confi rmation ........................................................... 17
 
3-3.  HV Service Flowchart .......................................................... 17
4. Circuit Adjustments
 
4-1.  Setting the Service Adjustment Mode .................................. 18
 
 
4-1.1  Resetting the Data ................................................... 18
 4-2. 
Memory 
Write 
Confi rmation Method .................................... 18
 4-3. 
Remote 
Adjustment 
Buttons 
and 
Indicators......................... 18
5. Diagrams
 5-1. 
Circuit 
Board 
Location.......................................................... 48
 
5-2.  Printed Wiring Boards and Schematic Diagrams ................. 48
 5-3. 
Diagrams
  Block 
Diagram ...................................................................... 49
  A 
Board ................................................................................ 53
  B 
Board ................................................................................ 61
  BC 
Board.............................................................................. 71
  C 
Board ................................................................................ 73
  D 
Board ................................................................................ 75
  HA 
Board.............................................................................. 83
  HB 
Board.............................................................................. 84
  S 
Board ................................................................................ 85
  U 
Board ................................................................................ 86
  W 
Board ............................................................................... 88
 5-4. 
Semiconductors ................................................................... 90
6. Exploded Views
 6-1. 
Chassis 
................................................................................. 92
 6-2. 
Picture 
Tube 
(KV-32HS20/32XBR450 
ONLY) ........................ 93
 
6-3.  Picture Tube (ALL EXCEPT KV-32HS20/32XBR450) .......... 94
7. Electrical Parts List ......................................................................... 95
SECTION TITLE   
PAGE
— 3 —
KV-32HS20/36HS20/36HS20H/32XBR450/36XBR450/36XBR450H
TruSurround is a trademark of 
SRS Labs, Inc.  SRS and the SRS 
symbol are registered trademarks 
of SRS Labs, Inc. in the United 
States and in select foreign coun-
tries.  SRS and TruSurround are 
incorporated under license from SRS Labs, Inc. and are protected 
under United States Patent Nos. 4,748,669 and 4,841,572 with 
numerous additional issued and pending foreign patents.  Pur-
chase of this product does not convey the right to sell recordings 
made with the TruSurround technology.
Television system
American TV standard, NTSC
Channel coverage
VHF: 2-13/ VHF: 14-69/ CATV: 1-125
Picture tube
FD Trinitron
®
 tube
Visible screen size
32-inch picture measured diagonally (KV-32HS20/32XBR450 ONLY)
36-inch picture measured diagonally (All Except KV-32HS20/32XBR450)
Actual screen size
34-inch measured diagonally (KV-32HS20/32XBR450 ONLY)
38-inch measured diagonally (All Except KV-32HS20/32XBR450)
Antenna
75 ohm external terminal for VHF/UHF
Supplied Accessories
Remote Commander RM-Y183 (KV-32HS20/36HS20/36HS20H ONLY)
Remote Commander RM-Y184 (KV-32XBR450/36XBR450/36XBR450H ONLY)
Two Size AA (R6) Batteries
Optional Assessories
Connecting cables: RK-74A, VMC-810S/820/830HGS, VMC-720M,
VMC-810S/820S, YC-15V/30V, YC-15/30HG, RKG69HG, RKC-515HG
U/V mixer: EAC-66
TV Stand:  SU-32HS2 (KV-32HS20 ONLY)
 SU-36HS2 
(KV-36HS20/36HS20H 
ONLY)
 SU-32XBR45 
(KV-32XBR450 
ONLY)
 SU-36XBR45 
(KV-36XBR450/36XBR450H 
ONLY)
SPECIFICATIONS
 SRS (SOUND RETRIEVAL SYSTEM)
The 
 
SRS (SOUND RETRIEVAL SYSTEM) is manufactured by 
Sony Corporation under license from SRS Labs, Inc. It is covered 
by U.S. Patent No. 4,748,669. Other U.S. and foreign patents 
pending. 
The word ‘SRS’ and the SRS symbol 
 
are registered trade-
marks of 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.
Design and specifi cations are subject to change without notice.
1)   1 Vp-p 75 ohms unbalanced, sync negative 
2)   Y:  1 Vp-p 75 ohms unbalanced, sync negative 
     C:  0.286 Vp-p (Burst signal), 75 ohms
3)   Y: 1.0 Vp-p, 75 ohms, sync negative; 
 
PB: 0.7 Vp-p, 75 ohms
 
PR: Vp-p, 75 ohms
4)   500 mVrms (100% modulation), Impedance:  47 kilohms
5)   More than 408 mVrms at the maximum volume setting (variable)
 
More than 408 mVrms (fi x)
 
 
KV-36HS20
 
 
KV-36HS20H
 
 
KV-32HS20
 
KV-36XBR450
 KV-32XBR450 
KV-36XBR450H
 120V, 
60Hz 
 
 
 
4
 
3
 
2
 
6
 
2
 
1
 YES
 7.5W 
4
 
 245W
 2W
  898 x 678 x 579.5 mm 
994 x 754.5 x 622 mm
 35 
3/8
 x 26 
3/4
 x 27 
7/8 
in 39 
9/64
 x 29 
45/64
 x 24 
1/2 
in
 
84 kg 
108 kg
 
185 lbs. 
238 lbs.
Power Requirements
Number of Inputs/Outputs
 Video 
1)
 S 
Video 
2)
 Y, 
PB, 
PR 
3)
 Audio 
4)
 Audio 
Out 
5)
 Monitor 
Out
 Control-S 
(in/out)
 
Speaker Output (W)
Power Consumption (W)
 
In Use (Max)
 In 
Standby 
Dimensions (W x H x D)
 mm
 in
Mass
 kg
 lbs
TruSurround
by
 
SRS 
 
®
— 4 —
KV-32HS20/36HS20/36HS20H/32XBR450/36XBR450/36XBR450H
WARNINGS AND CAUTIONS
CAUTION
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.
WARNING!!
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.
!
 SAFETY-RELATED COMPONENT WARNING!!
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. 
ATTENTION!!
Apres avoir deconnecte le cap de l’anode, court-circuiter l’anode du tube cathodique et celui de l’anode du cap au chassis metallique 
de l’appareil, ou la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.
Afi n d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout 
dépannage. Le chássis de ce récepteur est directement raccordé à l’alimentation du secteur.
ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifi es par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de 
pieces sont d’une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants sony dont 
le numero de piece est indique dans le present manuel ou dans des supplements publies par sony. Les reglages de circuit dont 
l’importance est critique pour la securite du fonctionnement sont identifi es dans le present manuel. Suivre ces procedures lors de 
chaque remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.
Page of 127
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Here you can read online and download Sony KV-32HS20 Service Manual in PDF. KV-32HS20 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony KV-32HS20 TV. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.