Samsung DVD-V5450 Service Manual page 231

Troubleshooting
FINE SEEK Check
MIRR
signal (RIC1-27) is missing?
Track incomming is
delayed?
TE is within
1.5V~2.5V and 3V?
Pick-up transfer smooth.
Check U1 peripheral circuit.
5-28
(DVD Section)
Yes
No
No
Yes
No
Yes
No
Yes
Check MECHA.
Check RIC1 Peripheral curcuit.
Time out due to many jump counts.
U1-175(Xstrack)
output is normal?
Yes
DRIC1-25,26(T+, T-)
terminal outputs are
normal?
Yes
Check DCON3 and pick-up.
(Xstrack Waveform)
No
Check RIC1-39 terminal.
No
Check U1 peripheral circuit.
Samsung Electronics