7-15
FINE SEEK Check
FINE SEEK MIRR
signal (RIC1-67) is missing?
TZCO signal
(SIC1-159) is occurs?
Track incomming is
delayed?
TE is within
2V and 3V?
Pick-up transfer smooth.
Check RIC1 Peripheral curcuit.
Check SIC1 Peripheral curcuit.
Time out due to many jump counts.
Check SIC1 peripheral circuit.
SIC1-14
(TRD)
output is normal?
SIC3-30, 29
(T+, T-)
terminal outputs are
normal?
Check CN1 and pick-up.
Check MECHA.
Check RIC1-36 terminal.
Check SIC3 peripheral circuit.
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
(TRD Waveform)
Abnormal rotation of
disc motor
Input of
RF EQO
signal is normal?
(SIC1-152)
SPD
output is normal?
(SIC1-28)
After resoldering SIC1.
SIC3-7
(FG)
output
is normal?
SIC3-44 signal
MON is "H" ?
Check or replace disc motor.
Check SIC1.
Check SIC3 soldering and power.
Check path to RIC1 and SIC1.
RIC1-71 output
is normal?
Check RIC1 peripheral
circuit and A, B, C, D.
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
(FG Waveform)
(SPD Waveform)
(RF EQO Waveform)
(DVD Section)
www. xiaoyu163. com
QQ 376315150
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
