TROUBLESHOOTING GUIDE
AUDIO SHAKES
Replace AUDIO HEAD.
Replace CAPSTAN DD.
Check peripheral components
of IC1001.
Replace IC1001.
Yes
No
Yes
No
Yes
No
Yes
No
No
Yes
Is AUDIO HEAD
scratched ?
Does pin 15 of IC1001
output a 3.0Vp-p square
wave ? 3.0V
Check AUDIO BLOCK.
In playback, is the
voltage at pin 17 of
CP1002 about DC1.6V ?
In playback, is the voltage
at pin 14 of CP1002 2.8V ?
Is the voltage at pin 14 of
CP1002 3.3V when you
stop the CAPSTAN DD
MOTOR manually ?
In playback, is the voltage at
pin 50 of IC1001 3.8V ?
E-9
