LG HDR676X - DV(Ieee 1394) Input (Video;Audio) Signal

3-14
12. NO DV(IEEE 1394) INPUT (VIDEO/AUDIO) SIGNAL
Check DV_Jack connection
DV-mode switching ?
IC1401 power 3.3V
IC1401 pin 37 : “High”
& X401 (24.576MHz) oscillated ?
NO
IC1401 power 3.3V
NO
Change to DV-mode.
Using Remote Control
NO
CHECK IC1302 Reset Circuit
YES
YES
YES
IC1401 pin 15 : “High”
Is there a signal?
YES
IC1401 pin 1,27,28,29,30 :
Is there a signal?
YES
IC1401 pin 2, 3 :
Is there a signal?
YES
IC101 DEFECT
YES
CHECK DV Cable
YES
Replace IC1401
YES