Philips CDR Mozart Service Manual page 13

Power Part Check FREYA Servo
Board
Power Part Check FREYA Servoboard
USE FREYA SERVOBOARD CIRCUIT DIAGRAM3 AND FREYA SERVOBOARD BOTTOM-AND TOP VIEW: TEST POINTS
Power Supply
Freya mainboard
Switch On
+12V testpoint 12 NOK
+5V testpoint 13
OK
NOK
+3V3 testpoint 14
OK
NOK
FS30V testpoint 15
= +27V
OK
NOK
-8V testpoint 16
OK
NOK
-5V testpoint 17
OK
Power Part
OK
Trouble Shooting CDR Mozart
- Check Mozart Back-end board
- Check Fuse 1543 and 1541
- Check D 6541, D6543
- Check Fuse 1501
- Check T 7020
- Check D 6554
- Check L 5554
- Check D 6547
- Check L 5553
- Check T 7547
- Check IC 7556
CL 16532046_045.eps
5. GB 13
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