Samsung MM-16 Service Manual page 19

Troubleshooting
6-2 CD
6-2-1 Malfunction of DISC Revolution
POWER ON
Check Door 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.
6-4
Yes
Yes
Yes
Yes
Yes
No
No
Check oscillation of NXF100
(16.9344MHz).
No
Replace PICK-UP.
No
Replace NIC9282.
Check Door S/W
Samsung Electronics