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
57
12. RA-4 Video Circuit Troubleshooting
A BOARD
4
1
7
10
22
|
20
|
17
|
13
24
6
76
96
57
59
60
75
61
74
|
67
66
65
84
83
50
9
|
2
|
99
28
|
13
11
10
12
30
98
16
|
19
|
26
|
22
2|
5
7
10
39
36
34
31
13
29
28
27
14
C1493
LUMINANCE/
COMPOSITE
FROM Y
BUFFER
Q1448
VIN
R1544
C1490
VRT
VCL
C1493
C1494
R1495
VRB
C1495
COMPOSITE SYNC
FROM Q1341/CS BUFFER
FROM Q1345/E
CHROMA C BUFFER
FROM
RESET
Q1015/C
R1509
FROM IC1008
MAIN CPU
SCL
SDA
Q1359
N
DB1
|
DB8
CLK
IC1309
8 BIT ADC
uPC659AGS
PCL
C1409
DYC00
DYCO1
AYO
ACD
IC1306
3D COMB FILTER
uPD64081BGF-3BA
FSCI
DYC09
DYC02
MAO
MAB
ALTF
STO
MIOO
MIO15
CSI
ACI
RSTB
MWE
MCAS
MOE
SCL
SCA
X1
MRAS
LUMINANCE
CHROMA
P
Q1349
C1496
R1434
N
A0
A8
IO1
IO16
R1391
C1370
R1437
WE
LCAS
UCAS
OE
RAS
IC1304
FRAME
MEMORY
uPD424210L0
TO Q1354/B
BUFFER
TO Q1358/B
BUFFER
+9V
R1414
FROM
IC1305/30
FSC
Q1348
12.3TVP14 6/24/02
FIGURE 12-3 - 3D COMB FILTER