19” LCD Color Monitor 190V7
46
Power/Inverter Board
No power
Adapter Board
Check CN951 pin 6/7 = 12V?
Check AC line volt 100-240V
Check AC input
Check the voltage of C907 (+)
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin 8 of IC901
Check R907 and IC901
NG
Check the auxiliary voltage is bigger than
10V and smaller than 20V
Check IC901, D926, T901
OK
Check D931, D935, IC902, IC941, ZD975
OK
NG
NG
OK
OK
NG
NG
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