Main PCBs Trouble Diagnosis
- Main TP(V-sync) : RC459
E. When "No signal" in HDMI
1) First check if other inputs are working
-> if other inputs are not working, replace MAIN PCB
2) Checking waveforms with Color Bar Pattern(Using the oscilloscope)
- Main TP : RC465, RC466, RC467, RC468, RC469, RC470, RC471, RC472
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