No Dv (Ieee1394) Input (Video/Audio) Signal - LG RH-2320 Service Manual

12. NO DV (IEEE1394) 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?
NO
IC101 defect
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Only for training and service purposes
NO
NO
NO
NO
.
NO
YES
3-17
Change to DV-mode.
using remote control
Check power 3.3V on I/O board
Check IC1302 reset circuit
Check DV cable
Replace IC1401
LGE Internal Use Only