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

95
23. RA-6 Protect Circuit Troubleshooting
STBY
TRANS.
5V
REG
R5016
R5026
IC5006
D5001
5
6
7
2
3
1
R5038
D5020
R5020
Q5002
D5007
CN6-5
CN6-4
TO 135V
OVP
IC5002-5
SELF DIAGNOSTICS
D5022
RY6002
D5017
C5050
9.8V
R5011
IC5005
IC5002
C5051
Q5005
R5010
R5013
5V
AU+19V
+
AU-19V
-15V
+15V
AU+19V
+22V
IC5004
6V
135V
D5019
D5023
D5033
D5026
D5024
R5043
D5025
R5046
D5032
D5031
Q5007
6V
D5014
R5012
T6001
PIN 11
ABL
Q5004
Q5003
D5015
R5021
RELAY
HIGH
R5028
Q5001
+
-
-
+
D5018 6V OVP
23V
+
FIGURE 23-2 - PROTECT CIRCUITS RA-6 CHASSIS
23.2TVP14 1471 7/11/02