Dv(Ieee 1394) Input (Video/Audio) Signal - LG HDR676X Service Manual

12. NO DV(IEEE 1394) INPUT (VIDEO/AUDIO) SIGNAL
Check DV_Jack connection
YES
DV-mode switching ?
YES
IC1401 power 3.3V
YES
IC1401 pin 37 : "High"
& X401 (24.576MHz) oscillated ?
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
NO
Change to DV-mode.
Using Remote Control
NO
IC1401 power 3.3V
NO
CHECK IC1302 Reset Circuit
YES
CHECK DV Cable
YES
Replace IC1401
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