Dell GCR-8481B Service Manual page 9

E. Disc doesn't rotate.
Does the signal appear at
FOK (TP18) during focus
search?
(Refer to Fig. E-1.)
YES
Do the signal appear at
TP15 (FEO) and TP19
(SENS)?
(Refer to Fig. E-3.)
YES
Does the signal appear at
the MDP (TP25)?
(Refer to Fig. E-4.)
YES
Do the signals appear at
IC201 pin (W),
12
and (U)?
14
YES
Check the pattern from
IC201 pin 12 ,
13
PN201 , ,
13 12 11
OK
Check Spindle Motor FFC
and then replace the
Spindle Motor.
26
Does the signal appear at
NO
FEO (TP15) when the
R504 opened?
(Refer to Fig. E-2.)
Replace IC501.
NO
NO
Replace IC501.
NO
(V),
13
Replace IC201.
, to
14
.
NO
YES
Replace IC501.
Replace Pick-Up.