2-7
CS 46 169
discmotor
turning ?
N
N
Y
Y
CHECK
FOCUS PATH
CHECK
TURNTABLE
MOTOR PATH
Y
N
remove
obstruction
replace
CD-drive
connections
to/from CD-drive
OK ?
N
Y
repair
connections
turntable and
disc free ?
mechanical
obstruction ?
Y
N
check
servo driver 7950
check
CD7 7830
check
CD7 7830
focus OK ?
eye-pattern
OK ?
Y
N
Y
Y
CHECK
LIGHTPATH
N
N
Y
N
check
servo driver 7950
replace
CD-drive
PWM-output
on pin 33 of
7830 ?
PWM-output
on pin 33 of
7830 ?
servo signals
on pin 2/44 of
7950 ?
FAULT FINDING GUIDE TURNTABLE MOTOR PATH
