Checking The Dc/Dc Converter Circuit - NEC MultiSync LCD1550ME Service Manual

10. Checking the DC/DC converter circuit

Check the output of 3.3V line voltage from I310 pin 2.
NG
Is the output FB320 being inputted to I315 pin 3?
OK
NG
Failure point
OK Printed wire broke between I310 pin 3 and output of FB321.
Failure point
I310 failure
Failure point
Printed wire broke between I310 pin 2 and I306 power supply pin.
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