5 Troubleshooting
5-14
AP17K*/AP17J*
5-2-3 Missing Color
Proper Video levels are
on CN101 (D-Sub) Pin 1, 3 and 5?
Proper Video signal is
on all cathodes?
Refer to 5-1-16 No Video.
Yes
Yes
No
Check signal generator.
No
Proper DC voltage is
on all cathodes?
Check IC101 Pin 18, 21 and 24.
Check QR01, QR02, QG01,
QG02, QB01, and QB02.
Yes
Yes
No
G2 voltage is right?
Check D502, D518, Q501,
D520, D521, and CN501.
No
Heater voltage is right?
Check D608, Q604 and T601.
No
Yes
Is G2 voltage right?
Check D504, Q502 and T501.
No
Yes
Yes
Yes
No
Replace CRT.
Done
24
WAVEFORMS
24
10.0 V (R,G,B, Video)
CH1 P-P = 10.0V
CH1 RMS = 17.02V
Содержание AP17K series
Страница 7: ...2 Product Specifications 2 4 AP17K AP17J Memo ...
Страница 17: ...4 Alignment and Adjustments 4 8 AP17K AP17J Memo ...
Страница 36: ...AP17K AP17J 6 1 6 Exploded View and Parts List ...
Страница 37: ...6 Exploded View Parts List 6 2 AP17K AP17J Memo ...
Страница 55: ...Memo 7 Electrical Parts List 7 18 AP17K AP17J ...
Страница 56: ...8 Block Diagrams AP17K AP17J 8 1 ...
Страница 57: ...Memo 8 Block Diagrams 8 2 AP17K AP17J ...
Страница 59: ...9 PCB Diagrams 9 2 AP17K AP17J Memo ...