Samsung HT-DM150 - Tracking Servo Troubleshooting

9-14 Samsung Electronics
7. Tracking Servo Does Not Work
7
Tracking Servo Does not Work
Check Voltage of
PI(pin36 of RU1) is
normal
Is TE(pin41 of RU1)
normal?
Check peripheral circuit or RCN1 and
MU9
Disc Judgment Error
Check connection between PCB
and MECHA
Check peripheral circuit or RU1
Change PickUp or RU1
Change DU3
N
N
Y
Y