Service manual
Table Of Contents
- 1. Introduction
- 2. The RA-3/3A Chassis
- 3. RA-3/3A Power Supply Troubleshooting
- 4. RA-3/3A Shutdown and Self-Diagnostics
- 5. RA-3/3A Deflection Circuits
- 6. RA-3/3A Video Process Troubleshooting: T & S Models
- 7. Troubleshooting the RA-4 Chassis
- 8. RA-4/4A Power Supply Troubleshooting
- 9. RA-4/4A Protect Circuit Troubleshooting
- 10. RA-4/4A Deflection Circuit Troubleshooting
- 11. RA-4/4A High Voltage Circuit Troubleshooting
- 12. RA-4 Video Troubleshooting
- 13. Troubleshooting the RA-4A Chassis
- 14. RA-4A Video Circuit Troubleshooting
- 15. Troubleshooting the RA-5A Chassis
- 16. RA-5A Power Supply Troubleshooting
- 17. RA-5A Protect Circuit Troubleshooting
- 18. RA-5A Deflection Circuit Troubleshooting
- 19. RA-5A High Voltage Circuit Troubleshooting
- 20. RA-5A Video Path Troubleshooting
- 21. Troubleshooting the RA-6 Chassis
- 22. RA-6 Power Supply Troubleshooting
- 23. RA-6 Protect Circuit Troubleshooting
- 24. RA-6 Deflection Circuit Troubleshooting
- 25. RA-6 High Voltage Circuit Troubleshooting
- 26. RA-6 Video Circuit Troubleshooting
- 27. Troubleshooting the AKB Circuits
- 28. Auto Registration Troubleshooting
- 29. Model-to-Chassis Cross Reference
58
12. RA-4 Video Circuit Troubleshooting
FIGURE 12-4 - MAIN CHROMA DECODER
1
2
37
36
35
26
A BOARD
32 34 38 39
14
15
16
10
18
19
20
30
22
8
28
R1543
FROM COMB
FILTER AYO
IC1306/84
FROM COMB
FILTER ACO
IC1306/83
C1332
R1446
X1303
500kHz
R1449
C1413
FROM
MAIN CPU
IC1008
MSDA
MSCL
R1425
R1426
+5V
R1452
X1305
3.58MHz
C1422
C1385
CERA
AFC
Y
IN
V
SYNC
C
IN
H
SYNC
SDA
SCL
ADR
R1546
P
Q1367
Q1366
N
9V
9V
R1393
R1400
Q1331
R1405
Q1332
C1381
P
C1376
C1389
R1463
V
TIM
HTIM
SCP
CPIN
Q1321
PY OUT
U OUT
Q1322
P
R1375
9V
Q1323
Q1338
P
C1483
Q1328
N
R1401
R1402
N
R1408
R1464
CV-Y
SELY
CLPP
Q1330
R1374
9V
C1457
C1456
C1435
R1383
P
Q1343
R1445
IC1008/8 VP
CN516//4 BR
BOARD, CN518/7
BM BOARD
IC1008/7 HP
CN516/2 BR
BOARD, CN518/8
BM BOARD
TO IC1307/1
YI IN
TO IC1307/2
CBI IN
TO IC1307/3
CRI IN
9V
TO MAIN YUV SW.
IC1307/4 & 27
YUV SEL1/SEL2
TO IC1306/50
3D COMB
IC1305
MAIN CHROMA
CXA2109AQ
FSCM
IC1307
MAIN YUV SW.
CCD MIX
CXA2119M
12.4TVP14 7/11/02