E-19
TROUBLESHOOTING GUIDE
NO
NO
YES
YES
NO
YES
YES
NO
A sound shakes
Whether is an audio
head wounded or not?
Exchange an audio head.
Whether is an input
level of IC1001 87th
pin a sine wave of
2.5Vp-p or not?
Exchange capstan DD unit.
Exchange IC1001.
Investigate a audio block.
When playback, is a
tension of 3rd pin of
CP1004 DC 2.2V
approximately?
When playback, is a
tension of 65th pin of
IC1001 square wave
of 5Vp-p?