Philips AZ7261 Service Manual page 12

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