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
CD PLAYABILITY
CHECK
1-2
Summary of Contents for MCM279
Page 11: ...5 1 5 1 SET BLOCK DIAGRAM ...
Page 12: ...5 2 5 2 SET W IRING DIAGRAM ...
Page 13: ...CIRCUIT DIAGRAM MAIN BOARD PART1 6 1 6 1 ...
Page 14: ...6 2 6 2 CIRCUIT DIAGRAM MAIN BOARD PART2 ...
Page 15: ...6 3 6 3 LAYOUT DIAGRAM MAIN BOARD ...
Page 16: ...7 1 7 1 KEY USB JACK BOARD ...
Page 17: ...8 1 8 1 CIRCUIT DIAGRAM POWER AMP BOARD ...
Page 18: ...8 2 8 2 LAYOUT DIAGRAM POWER AMP BOARD ...
Page 19: ...EXPLODE DIAGRAM 9 1 9 1 ...
