JVC TV-20F242 Service Manual page 51

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When playback, fast forward or
rewind mode is activated, unit
stops immediately
Whether does
capstan DD motor
rotate or not?
YES
Whether does
capstan belt
normal or not?
YES
Whether there is a reel
sensor pulse signal for
IC1001 79th pin or not?
YES
Whether there is a reel
sensor pulse signal for
IC1001 80th pin or not?
YES
Exchange IC1001.
NO
NO
NO
NO
It refers to a clause of "Capstan
DD motor doesn't rotate"
Exchange capstan belt.
Investigate Q1001 and R1006.
Investigate Q1005 and R1019.
51

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