Trouble Shooting
4-10
Samsung Electronics
Abnormal rotation of
disc motor
Input of RF SUM
signal is normal
No
Yes
Check A,B,C,D,E
Check or replace disc motor
Spindle-
PWM output is normal ?
(DIC1-106)
No
Yes
Check DIC1 peripheral circuit
MIC1-17,
18 output is
normal ?
No
Yes
Check MIC1 soldering and power
MIC1-28 signal
STBY is "H"?
No
Yes
Check. MIC1
Refer to a pattern
image of Table 4-5
Refer to a pattern
image of Table 4-6
Refer to a pattern
image of Table 4-6
