5 Troubleshooting
AP17K*/AP17J*
5-3
5-1-3 H_Deflection Failure
Does Horizontal pluse signal
appear at Pin 8 of IC401?
Check IC401.
Yes
No
Does 110 Vp-p signal appear
at Collector of Q403?
Check Q403.
Yes
No
Check Q402, Q404 and T401.
4
Does PWM output signal appear
at Pin 6 (B_out) of IC401?
Check IC401.
Check 12 V line.
Yes
No
Does DC 12V appear at
Pin 10 of IC401?
Yes
No
3
5-1-4 S Correction Failure
S1~S4 signals are right at each
frequency block?
Check S1 ~ S4 signal.
Check and replace Q404, Q409,
Q410, Q411, Q414, Q415, Q416,
Q420, and Q421.
Yes
Check and replace IC201.
No
5
3
2.00 V (IC401, #6)
CH1 P-P = 2.00V CH1 RMS = 5.868V
4
2.00V (IC401, #8)
CH1 P-P = 2.00V CH1 RMS = 5.868V
5
20.0 V (Q403, Collector)
CH1 P-P = 20.0 V CH1 RMS = 46.80V
WAVEFORMS
Summary of Contents for AP17K series
Page 7: ...2 Product Specifications 2 4 AP17K AP17J Memo ...
Page 17: ...4 Alignment and Adjustments 4 8 AP17K AP17J Memo ...
Page 36: ...AP17K AP17J 6 1 6 Exploded View and Parts List ...
Page 37: ...6 Exploded View Parts List 6 2 AP17K AP17J Memo ...
Page 55: ...Memo 7 Electrical Parts List 7 18 AP17K AP17J ...
Page 56: ...8 Block Diagrams AP17K AP17J 8 1 ...
Page 57: ...Memo 8 Block Diagrams 8 2 AP17K AP17J ...