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Page 1
Service Newsletter 2002 Ð BCU Audio1/4For internal use onlyPHILIPSISSUE SNL2002.09 (02-12-06)Published by:
Service Department AudioBUSINESS CREATION UNIT AUDIOGeneral Information
This special edition contains instructions on CD-applications with playability problems (i.e.
skipping tracks). The information shows how to check the playability of the set, how to
clean the lens, and how to measure if some important drive parameters like jitter, laser
current and offset values are (still) within the specification.
Background for this information are extensive analyses on replaced CD-drives. It has
been found that a lot of replaced drives were not defective at all, respectively were
replaced for the wrong reason. We are convinced that the procedures on the next pages
will help to reduce the number of erroneously replaced drives drastically and request you
to deploy the instructions to the workshops urgently.SERVICE NEWSLETTER1-1
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Service Newsletter 2002 Ð BCU Audio2/4Set remains closed!
Standard repair procedureN
Y
Play a CD
for at least 10 minutes Yplayability
ok ?Nplayability
ok ?add Info for customer
"SET OK"playability
ok ?Y
N check playability N
Y playability
ok ?check playability
check playabilityEYE-Pattern
ok ?N
Y check "EYE-Pattern"
replace CD DriveLaser current
ok ?N
Y check Laser current
CD Drive offsetsok ?N Ycheck CD Drive offsetsclean the lens
check playabilityreturn set Customer complaint "CD related problem"return set
return setreplace CD Drivereturn setreplace CD Drivereturn setreplace Signal Processorreturn set"fast" lens cleaning1
23
4
5
6
7For flap loaders (= access to CD drive possible)
cleaning method 4 is recommended1
-
7
For description - see following pages1-2
