Section 2. Electrical; Audio Troubleshooting Guide - Zenith DVT654 Service Manual

SECTION 2. ELECTRICAL

AUDIO TROUBLESHOOTING GUIDE

1. POWER CHECK FLOW
INSERT
POWER CORD.
RED LED
ON?
TURN POWER ON.
IS POWER ON?
DOES INITIAL
READ WORK?
DOES IT PLAY?
DOES IT OUTPUT
AUDIO?
OK
YES
YES
YES
YES
YES
NO
NO
CHECK POWER SUPPLY CIRCUIT .
NO
NO
CHECK TRACKING SERVO CIRCUIT.
NO
- 2-1 -
CHECK POWER PLUG
AND POWER SUPPLY CIRCUIT .
CHECK LASER CIRCUIT .
CHECK FOCUS CIRCUIT.
CHECK DISC.
CHECK AUDIO CIRCUIT.