Aiwa VX-G143K Service Manual page 55

TAPE LOADING IS OK, BUT
UNLOADS IMMEDIATELY
Does CYLINDER rotate ?
Yes
Does TP4001 feed
HEAD SWITCHING
PULSE signal 30Hz?
Yes
Does REEL SENSOR
PULSE signal appear at
pins 31 and 32 of IC1006?
No
Check REEL SENSOR.
TROUBLESHOOTING GUIDE
No
Is the voltage at pin 2 of
CP1005, UNREG 12V?
Replace CYLINDER UNIT.
Does PG PULSE
No
appear at pin 107 of
IC1001?
Replace IC1006.
Yes
E-23
No
Yes
No
Yes
Check Power circuit.