Set remains closed!
Standard repair procedure
N
Y
Play a CD
for at least 10 minutes
Y
playability
ok ?
N
playability
ok ?
add Info for customer
"SET OK"
playability
ok ?
Y
N
check playability
N
Y
playability
ok ?
check playability
check playability
EYE-Pattern
ok ?
N
Y
check "EYE-Pattern"
replace CD Drive
Laser current
ok ?
N
Y
check Laser current
CD Drive offsets
ok ?
N
Y
check CD Drive offsets
clean the lens
check playability
return set
Customer complaint
"CD related problem"
return set
return set
replace CD Drive
return set
replace CD Drive
return set
replace Signal Processor
return set
"fast" lens cleaning
1
2
3
4
5
6
7
For flap loaders (= access to CD drive possible)
cleaning method
4
is recommended
1
-
7
For description - see following pages
INSTRUCTIONS ON CD PLAYABILITY
1-6
Summary of Contents for MCM148
Page 2: ...PCBS LOCATION FRONT BOARD MAIN BOARD 1 2 ...
Page 10: ...3 1 3 1 SET BLOCK DIAGRAM ...
Page 11: ...FRONT MCU SET WIRING DIAGRAM 4 1 4 1 ...
Page 13: ...5 2 5 2 PCB LAYOUT MAIN BOARD TOP VIEW ...
Page 14: ...5 3 5 3 PCB LAYOUT MAIN BOARD BOTTOM VIEW ...
Page 15: ...5 4 5 4 CIRCUIT DIAGRAM MAIN POWER BOARD AF AMP PART ...
Page 16: ...5 5 5 5 CIRCUIT DIAGRAM MAIN BOARD CD MP3 PART ...
Page 17: ...5 6 5 6 CIRCUIT DIAGRAM MAIN BOARD TUNER PART ...
Page 19: ...6 2 PCB LAYOUT FRONT MCU BOARD TOP VIEW 6 2 ...
Page 20: ...6 3 PCB LAYOUT FRONT MCU BOARD BOTTOM VIEW 6 3 ...