Service Newsletter 2002 – BCU Audio
2/4
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
1-2
Summary of Contents for FWD185/79
Page 9: ...2 2 2 2 REPAIR INSTRUSTRATOR ...
Page 12: ...4 1 4 1 BLOCK DIAGRAM ...
Page 13: ...4 2 4 2 WIRING DIAGRAM ...
Page 15: ...5 2 5 2 CIRCUIT DIAGRAM 1 2 3 4 1 2 3 4 A B C A B C ...
Page 16: ...5 3 5 3 PCB LAYOUT TOP VIEW ...
Page 17: ...5 4 5 4 1 2 3 4 1 2 3 4 A B C A B C PCB LAYOUT BOTTOM VIEW ...
Page 19: ...6 2 6 2 Circuit Diagram 1 2 3 4 1 2 3 4 A B C A B C ...
Page 20: ...6 3 6 3 PCB Layout Top View 1 2 3 1 2 3 A B C D A B C D ...
Page 21: ...6 4 6 4 PCB Layout Bottom View 1 2 3 1 2 3 A B C D A B C D ...
Page 23: ...7 2 7 2 CIRCUIT DIAGRAM 1 2 3 4 1 2 3 4 A B C A B C ...
Page 24: ...7 3 7 3 PCB LAYOUT TOP VIEW 4 3 2 1 4 3 2 1 A B C A B C ...
Page 25: ...7 4 7 4 PCB LAYOUT BOTTOM VIEW 1 2 3 4 1 2 3 4 A B C A B C ...
