Malfunction Of Disc Revolution - Samsung MM-26 Service Manual

6-3 CD

6-3-1 Malfunction of DISC Revolution

POWER ON
Check CLOSE S/W voltage.
CLOSE condition : 0V
Is Focus Search done properly ?
Does Laser function during
Focus Search ?
Check NIC9282 pin73 voltage
during Focus Search : 5V
Replace NIC9220 or NIC9258.
Samsung Electronics
Yes
Yes
Yes
Yes
Yes
No
Check CLOSE S/W
No
Check oscillation of NXF100
(16.9344MHz).
No
Replace PICK-UP.
No
Replace NIC9282.
Troubleshooting
6-5