Service manual

TROUBLESHOOTING GUIDE
E-20
Yes
No
No
Yes
When cassette is not
inserted ,is EOT BOT
PULSE at pin 2 of CP1006
and Q1017?
No
Yes
Does WORM GEAR of
CASSETTE LOADING
BLOCK activate?
Check WORM GEAR of
CASSETTE LOADING BLOCK.
Check EOT, BOT, PHOTO
SENSOR, pins 25 and 26 of IC1006.
When a cassette is inserted,
is the voltage between pins
3 and 4 of CP1006?
Replace LOADING MOTOR.
Yes
No
When a cassette is
inserted, is the voltage at
pin 67 of IC1006 5V?
Check circuit of LOADING MOTOR.
Replace IC1006.
CASSETTE TAPE IS NOT
ACCEPTED