Page 1
For internal use only PHILIPS
ISSUE AS99.03 (99-07-12)
Published by:
Service Depar tment Audio Systems
LINE OF BUSINESS AUDIO SYSTEMS
03.01 TYPENUMBER(S): FW350C, FW390C, FW398C, FW540C, FW545C, FW548C,
FW555C, FW585C, FW590C, FW595C, FW748P, FW768P, FW798W,
FW830C, FW840C, FW870C, FW878C, FW890P, FW898W
INFORMATION : Correction to the Service Manual, Partslist
The following flex-foils and flex-foil-connector were missing and have
been added to the partlist of the 3CDC-99 Module (chapter 10).
pos. code number article description
–––––––––––––––––––––––––––––––––––––––––––––
1805 2422 025 09768 Flex-Foil-Connector 19P
8001 4822 320 12232 Flex-Foil 15P 480mm
8001 4822 320 12658 Flex-Foil 19P 480mm
8001 4822 320 12659 Flex-Foil 23P 480mm
8001 4822 320 12729 Flex-Foil 23P 400mm
8005 3103 308 91820 Flex-Foil 15P 95mm
fig.1 – location of flex-foils
REMARKS :
SERVICE NEWSLETTER
Service Newsletter 1999 – Audio Systems 1/2
Page 2
03.02 TYPENUMBER(S): FW540C, FW545C, FW548C, FW768P
INFORMATION : During production weeks 9921 to 9925, some sets have been
produced without the Clip-Rectifier, that enhances the heat transfer
between Rectifier and Heatsink. Below pictures show the Power
Supply board with and without the Clip-Rectifier.
clip-rectifier missing clip-rectifier in position
REMARKS : All sets from production weeks 9921 to 9925 that come in for repair
must be checked – Missing clips have to be added as preventive
action.The service code reads 4822 492 11068.
03.03 TYPENUMBER(S): FW570C/37
SYMPTOM :
Fuse 1350 T315mA is blown.
CURE : The fuse blows because its application is near the marginal limit in
worst case condition (most of the LEDs are on).
The problem is resolved by changing:
1) Fuse 1350 to T400mA type (2422 086 10612)
2) Resistor 3480 to higher wattage PR02 type (2322 194 73109)
REMARKS : Production has already been stopped.
Above solution is applicable for repair only.
C111IRIS CODE
Service Newsletter 1999 – Audio Systems 2/2
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