Service manual

TROUBLESHOOTING GUIDE
E-1
POWER DOES NOT TURN ON
NO
(VCR SECTION)
YES
NO
YES
NO
YES
Check of T501
and peripheral circuit.
Check of V651
and peripheral circuit.
Check IC3001.
Check of T501
and peripheral circuit.
Is the voltage at
pin 29 of IC 3001
0V ?
Does display light?
Is the voltage
linked to L506 ?
THE POWER SUPPLY CUT
Inserting a cassette
and push play button.
YES
YES
NO
NO
Does the power cut
after 3 seconds?
Check CAPSTAN DD UNIT
and CYLINDER UNIT.
Does the power cut
after about 6 seconds?
Check Q3006,Q3008
and CAPSTAN BELT.
Check the POWER BLOCK.