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5 Troubleshooting
5-2 DP15H*/DP17L*
5-1-2 DPMS Failure
Make No H/V sync (power off
mode)
Check signal source
H/V sync video level.
LED blinks
Check IC201 Pin 40.
Yes
No
+12 V line off
Check IC201 Pin 5.
Yes
No
IC602 Pin 4
voltage exists?
Check IC201 Pin 6.
Check and replace IC602.
No
Yes
IC601 Pin 1 output
voltage exists?
Refer to 5-1-1 No Power Supply.
Done
Yes
No
WAVEFORMS
2
2
100V (IC601, #1)
CH1 P-P = 100V CH1 RMS = 325.8 V