Samsung DVD-P380 Service Manual page 34

Trouble Shooting
4-0
Abnormal rotation of
disc motor
Input of RF SUM
signal is normal
Yes
SPD
output is normal ?
(ZIC-9)
Refer to a pattern
Yes
image of Table 4-5
MIC-,
 output is
normal ?
Refer to a pattern
Yes
image of Table 4-6
MIC- signal
MON is "H"?
Refer to a pattern
Yes
image of Table 4-6
Check or replace disc motor
No
Check A,B,C,D,E
No
Check ZIC peripheral circuit
No
Check MIC soldering and power
No
Check. ZIC
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