Samsung DVD-HD850/XAA, Service Manual, Page: 37 / 94

Troubleshooting
Samsung Electronics 5-3
FINE SEEK Check
FINE SEEK MIRR
signal (RIC1-27) is missing?
Track incomming is
delayed?
TE
is within
2V and 3V?
Pick-up transfer smooth.
Check RIC1 Peripheral curcuit.
Time out due to many jump counts.
Check RIC1 peripheral circuit.
ZIC1-169
(TRD)
output is normal?
FIC1-26, 25
(T+, T-)
terminal outputs are
normal?
Check DCN1 and pick-up.
Check Deck.
Check RIC1-6 terminal.
Check FIC1 peripheral circuit.
Yes
Yes
Yes
Yes
Yes
Yes
No
No No
No
No
No
(TE Waveform)
(TRD Waveform)
(T+,T- Waveform)
Abnormal rotation of
disc motor
Input of RF SUM
signal is normal?
(ZIC1-172, 173)
SPD
output is normal?
(ZIC1-189)
Check ZIC1 peripheral circuit.
FIC1-25 output
is normal?
FIC1-23 signal
MON is "H" ?
Check or replace disc motor.
Check ZIC1.
Check FIC1 soldering and power.
Check path to RIC1 and ZIC1.
RIC1-54, 55 output
is normal?
Check RIC1 peripheral
circuit and A, B, C, D.
Yes
Yes
Yes
Yes
Yes
No
No
No No
No
(SPD Waveform)