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PHILIPS AUDIO service bulletins 1
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PHILIPS AUDIO service bulletins and tips

MODEL: 74MX540
SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer
CURE: Production of CDM12.1 will stop. For service purpose CDM12.1 (4822 691
30278) will be replaced by service kit VAM1201 (4822 310 11263) when stock
depletes. As an alternative, the CDM12.1 can be replaced by CDM12.1/T (4822 691
30343) without any further modifications.

MODEL: 74MX540
SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer
CURE: Replacement of CDM12.1 for 7-Disc Changer - Production of CDM12.1 will
stop. For service purpose CDM12.1 (4822 691 30278) will be replaced by service
kit VAM1201 (4822 310 11263) when stock depletes. For the above mentioned sets
with 7-Disc Changer the new VAM1201 does not fit. As an alternative, the CDM12.1
can be replaced by CDM12.1/T (4822 691 30343) without any further modifications.

MODEL: 74MX540
SYMPTOM: Modification
CURE: Modification During production the spring pos. 70 has been modified from
16mm length to 14mm to match a similar change in the bracket pos. 2. This makes
matching between the bracket and spring necessary during repair.For this reason
a new service 12NC for pos 70 is created for the new spring.Below shows both
spring (pos. 70) and their ordering 12NCs. Service codesDescription
============== =========== 4822 492 42713 Spring 16mm 4822 492 11413 Spring 14mm

MODEL: ACC-General
SYMPTOM: Codenumber information
CURE: Codenumber information From now on Dolby testcassette MTT-150 is available
with service codenumber 4822 397 30271. Also the Dolby testcassette TCC-130 has
become a service ordernumber 4822 397 30269. With one of these cassettes the
Dolby adjustment can be achieved.

MODEL: ACT7580
SYMPTOM: improve the CD start-up behaviour
CURE: In order to improve the CD start-up behaviour, following parts have been
changed: