No Dv(Ieee 1394) Input (Video/Audio) Signal - LG DR165 Service Manual

12. NO DV(IEEE 1394) INPUT (VIDEO/AUDIO) SIGNAL

Check DV_Jack connection
DV-mode switching ?
IC1601 power 3.3V
IC1601 pin 37 : "High"
& X401 (24.576MHz) oscillated ?
IC1601 pin 15 : "High"
Is there a signal?
IC1601 pin 1, 27, 28, 29, 30 :
Is there a signal?
IC1601 pin 2, 3 : Is there a signal?
Replace IC1601
YES
YES
YES
YES
YES
YES
YES
NO
NO
CHECK power 3.3V on I/O board
NO
NO
NO
NO
3-19
Change to DV-mode.
Using Remote Control
CHECK RESET circuit
CHECK DV Cable
Replace IC1601
IC101 DEFECT