Philips fw d 185 service manual
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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