SONY KV-32XBR400, KV-36XBR400, KV-38DRC1, KV-38DRC1C Service Manual Part1
PRELIMINAR Y
SERVICE MANUAL
MODEL COMMANDER DEST CHASSIS NO.
KV-32XBR400 RM-Y174 US SCC-S47A-A
KV-32XBR400 RM-Y174 CN D SCC-S48A-A
KV-36XBR400 RM-Y174 US SCC-S47B-A
KV-36XBR400 RM-Y174 CN D SCC-S48B-A
KV-38DRC1 RM-Y174 E SCC-S49A-A
KV-38DRC1C RM-Y174 E SCC-S49B-A
DX-1A CHASSIS
KV-32XBR400/36XBR400/38DRC1/38DRC1C
y
g
g
SPECIFICATIONS
KV-32XBR400
Power requirements 120V, 60 Hz 120V, 60 Hz 220V, 50/60Hz
Number of inputs/outputs
S Video
Y,PB,PR
Audio Out
Monitor Out
TV Out
Control-S (in/out)
Speaker output(W)
Power Consumption(W)
In use(Max)
In standb
Dimensions(W/H/D)
Mass
Television system
American TV standard/NTSC
Channel coverage
VHF:2-13/UHF:14-69/CATV:1-125
Visible screen size
FD Trinitron tube
1)
Video
2)
3)
4)
Audio
5)
1) 4)
(mm) 898 x 678 x 579.5
3/8
35
(in)
(k
) 84kg
x 26
3/4
(lbs) 185 lbs
x 27
KV-38DRC1/
KV-36XBR400
KV-38DRC1C
4
3
2
5
2
1
1
YES
15W x 2
245W
2W
7/8
994 x 754.5 x 622
39
9/64
x 29
45/64
108k
x 24
1/2
238 lbs
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) 500mVrms (100% modulation), impedance: 47kilohms
4) More than 408 mVrms at the maximum volume setting (variable)
More than 408 mVrms (fix)
5) Y: 1.0 Vp-p, 75 ohms, sync negative;
PB: 0.7 Vp-p, 75 ohms;
PR: Vp-p, 75 ohms
Visible screen size
32” picture measured diagonally (KV-32XBR400)
36” picture measured diagonally (KV-36XBR400/38DRC1/38DRC1C)
Actual screen size
34” picture measured diagonally (KV-32XBR400)
38” picture measured diagonally (KV-36XBR400/38DRC1/38DRC1C)
Antenna
75 ohm external antenna terminal for VHF/UHF
Supplied accessories
Remote Commander RM-Y174
Two Size AA (R6) batteries
Optional accessories
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-32FD2, SU-36FD2, SU-32XBR2, SU-36XBR2
Design and specifications are subject to change without notice.
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KV-32XBR400/36XBR400/38DRC1/38DRC1C
TABLE OF CONTENTS
Section Title Page
Warnings and Cautions ....................................................................................................................................... 4
Self-Diagnostic Function ...................................................................................................................................... 4
Safety Check-Out Instructions.............................................................................................................................. 7
1. GENERAL ............................................................................................................................................................ 8
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................................................................................................. 13
2-2. Chassis Assembly Removal ................................................................................................................. 13
2-3. Service Position ..................................................................................................................................... 13
2-4. Picture Tube Removal ........................................................................................................................... 14
3. SET-UP ADJUSTMENTS
3-1. Beam Landing ....................................................................................................................................... 15
3-2. V-Pin and V-Cen Adjustment ................................................................................................................. 16
3-3. Convergence.......................................................................................................................................... 16
3-4. Focus Adjustment .................................................................................................................................. 18
3-5. Screen (G2)............................................................................................................................................18
3-6. Picture Quality Adjustments .................................................................................................................. 18
3-7. White Balance Adjustments .................................................................................................................. 21
3-8. Raster Center Adjustment ..................................................................................................................... 21
3-9. Picture Distortion Adjustments .............................................................................................................. 21
3-10. NTSC (DRC) Full Mode Adjustment ...................................................................................................... 22
4. SAFETY RELATED ADJUSTMENTS
RV8001, 8002, 8003 Confirmation Method and HV Service Adjustments ....................................... 2 3
5. CIRCUIT ADJUSTMENTS
5-1. Setting the Service Adjustment Mode .................................................................................................... 24
5-2. Memory Write Confirmation Method ...................................................................................................... 24
5-3. Adjustment Buttons and Indicators ....................................................................................................... 24
5-4. Service Data Lists .................................................................................................................................. 25
6. DIAGRAMS
6-1. Block Diagram ....................................................................................................................................... 31
6-2. Circuit Board Location ........................................................................................................................... 35
6-3. Printed Wiring Boards and Schematic Diagrams ................................................................................. 35
• D Board .............................................................................................................................................. 51
• A Board .............................................................................................................................................. 61
• C Board .............................................................................................................................................. 71
• S Board.............................................................................................................................................. 74
• HA Board............................................................................................................................................ 76
• W Board ............................................................................................................................................. 79
• B Board.............................................................................................................................................. 81
• HB Board ........................................................................................................................................... 84
6-4. Sem iconductors .................................................................................................................................. 119
7. EXPLODED VIEW
7-1. Chassis ............................................................................................................................................... 121
7-2. Picture Tube ......................................................................................................................................... 122
8. ELECTRICAL PARTS LIST ................................................................................................................................................123
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