Product specifications

5 Troubleshooting
AN17K*/AN17L* 5-15
G2 voltage is right?
Blank pulse at Pin 3 of IC401?
Check IC401.
Yes
Yes
No
Check D502, D512.
No
V_FLB pulse at
Collector of Q303?
Check Q303.
Done
Yes
No
Valid the Vertical pulse
on CRT Socket G1?
Check CN102 and CN201.
Yes
No
Check white balance adjustment.
5-2-4 Visible Retrace
23
24
23
5.00V (Q303, Collector)
CH1 P-P = 5.00V CH1 RMS = 28.33V
24
20.00V (CRT Socket, G1)
CH1 P-P = 20.0V CH1 RMS = 66.68V
WAVEFORMS
CONFIDENTIAL