15
The below waveform is
outputted in IC102 123PIN?
Check the power of U10, soldering and
replace of IC102.
FFC of connector CN601
is normally inserted?
Replace of spindle motor
Check the power of IC609, GND, soldering
and replace of IC609.
After correct insertion of
FFC to Connector, then retest.
Do Pins 14(W),13(V), 12(U) show
waveforms as the ones shown in Figure 2?
No spindle motor operation
The Movement of the Spindle
Output the upper and lower on
the basis of 1.65V in
123PIN of IC102.
The Pin No.6 of IC609 has a
square wave output.
IC609 8PIN
continues to show
voltage changes as RPM changes.
(Moves above and below VREF)
The spindle motor rotates.
In case of CD - ROM READ
N
Y
N
N
Y
Y
Figure
1. DMSO
Figure
2. U.V.W
Summary of Contents for SN-S082D
Page 10: ...8 4 1 4 Assembly Diagram ...
