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TROUBLESHOOTING GUIDE
PLAYBACK PICTURE NOISY
(EVEN AFTER CLEANING HEADS)
Is FM signal at TP4001
more than 300mVp-p?
No
Yes
No
No
Yes
Yes
Check IC4001 and CYLINDER UNIT.
Is VIDEO waveform
at pin 30 of IC4001 2Vp-p
are there any noises?
Check IC4001 and peripheral circuit.
Is video output at pin 26
of IC4001 2Vp-p and are
there any noise?
Check IC4001 and IC1001.
Check J4201.
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Summary of Contents for HR-J3009UM
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Page 64: ...VICTOR COMPANY OF JAPAN LIMITED VIDEO DIVISION Printed in Japan S40894 ...