TROUBLESHOOTING
THIS TROUBLESHOOTING GUIDE SUGGEST AREAS TO CHECK TO FIND PROBLEMS. IN
GENERAL, EACH FAULT IS FOLLOWED BY A LIST OF POINTS TO CHECK. THESE
POINTS RANGE FROM THE MOST POSSIBBLE TO THE LEAST LIKELY.
FAULT
POINTS TO CHECK
DEAD UNIT
*
CHECH THE AC ADAPTOR.
(VU METER NO
LIGHT)
* CHECK THE POWER SWITCH.
*
CHECK THE POWER INPUT JACK.
VU METER WITH
* CHECK THE VOLTAGE REGULATORS.
(IC9,IClO)
LIGHT BUT MASTER
* CHECK
IC6,ICl,IC5,IC7
OUTPUT NO SIGNAL
VU METER WORKS BUT
* CHECK THE WIRE CONNECTED BETWEEN
R46, R47
AND
MASTER OUTPUT NO
MASTER OUTPUT JACKS.
SIGNAL OUTPUT
MIC CHANNEL NOT
*
CHECK
IC2
AND SURROUNDING PARTS
WORKING
PHONO 1 NOT WORKING
*
CHECK IC3 AND SURROUNDING PARTS
PHONO 2 NOT WORKING
* CHECK IC4 AND SURROUNDING PARTS
HEADPHONE OUTPUT
*
CHECK
IC8
AND SURROUNDING PARTS
NOT WORKING
-5-
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