Acer AL702 AL702 Monitor Service Guide - Page 22

Checking the DC/DC converter circuit

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10. Checking the DC/DC converter circuit Check the output of 3.3V line voltage from I308 pin 2. NG Is the output FB321 being inputted to I308 pin 3? NG Failure point OK OK Printed wire broke between I308 pin 3 and output of FB322. Failure point I308 failure Failure point Printed wire broke between I308 pin 2 and I300 power supply pin. A LC502 Trouble Sh ooting Page 13

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