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RECORDING MECHANISM
WORKS, BUT NO VIDEO
RECORDED FROM INPUT JACK
OR TUNER
Does VIDEO signal
appear at pins 15, 17
and 19 of IC4501 ?
Yes
Is there FM signal at
pin 86 of IC4501 ?
Yes
Check CYLINDER UNIT.
NO E-E (NO VIDEO AND
AUDIO FROM TUNER)
Do the following voltages
appear on TU601, 30V at
pin 9 and 5V at pin 7 ?
Yes
Is there waveforms at pins
4 and 5 of TU601 ?
Yes
Check TU601.
TROUBLESHOOTING GUIDE
No
No
No
No
E-13
Check J4201, J2202 and pin 13
of IC601.
Replace IC4501.
Check POWER BLOCK.
Check IC601.
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