Checking The Dc/Dc Converter Circuit - NEC MultiSync LCD1700NX A Service Manual

10. Checking the DC/DC Converter Circuit

Check if the 5V is output from I322 pin 2.
NG
OK
Check the output of 3.3V line voltage from I323 pin 2.
NG
OK
OK
Printed wire broke between I323 pin 2 and I315 power supply pin.
Failure point
Printed wire broke between I322 pin 1 and L314 pin 2.
Is the output FB335 being inputted to I315 pin 3?
NG
Printed wire broke between I323 pin 3 and output of FB335.
Failure point
I323 failure
Failure point
Failure point
6-15