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HP LC3260N Service Manual: Troubleshooting Guide

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POWER DOES NOT TURN ON
IS F501 BROKEN ?
NO
IS THERE VOLTAGE
AT PIN 4 OF IC503
20.5V ?
YES
IS THERE VOLTAGE
AT PIN 4 OF IC506
AT5V ?
YES
IS THERE VOLTAGE
AT PIN 2 OF IC3804
AT3.3V ?
YES
CHANGE SCALER PCB.

TROUBLESHOOTING GUIDE

YES
NO
NO
NO
E-1
CHANGE F501.
CHECK IC503 AND
PERIPHERAL CIRCUIT.
CHECK IC506 AND
PERIPHERAL CIRCUIT.
OR CHANGE POWER PCB.
CHECK IC3804 AND
PERIPHERAL CIRCUIT.
OR CHANGE AV PCB.

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