HP 1660E Series Service Manual page 140

Troubleshooting
To use the flowcharts
CHART 1
CHART 2
TURN PO\YER OFF
AND CHECK FUSE.
(POSITION,
RATING AND OPERATION)
IS
FUSE
OK?
YES
REMOVE TOP
COVER AND CHECK
FAN CONNECTION.
IS
FAN CABLE
CONNECTED?
YES
TURN ON POWER
AND CHECK POWER
SUPPLY VOLTAGES.
NO
NO
REPLACE
FUSE
RESEAl FAN
CABLE ON
CONNECTOR.
POII£R
SUPPLY VOLTAGES
OK?
YES
REMOVE FAN
CABLE AND CHECK
VOLTAGES
>,N",O-+{ 3
CHART 3
IS
FAN VOLTAGE
OK?
REPLACE
ACQUISITION
BOARD.
Troubleshooting Flowchart 2
5-4
YES
REPLACE
FAN
01~61lDZ6