Pioneer AVX-P7300DVD Service Manual page 94

AVX-P7300DVD
Check 5: Is the video circuit operated normally?
Reproduce DVD-REF-A1 Title 2 Chapters (White 100IRE).
Monitor the output with the oscilloscope, by setting the COMPO signal to a GND reference.
Set the Trigger mode to the TV trigger, and the Trigger line to line-150.
NO. Verification location Rated value
(sensing pin)
1 COMPO
If the result is not satisfactory, check to see if there are any problems with resin flux cored solder, parts and
components, in the vicinity of line-150 (the section marked 5 in the circuit diagram) and peripheral components
COMPO signal
94
Reference
waveform
1.0±0.02Vpp Waveform 6
Color burst
Pedestal
Horizontal periodic signal
Figure 11: Composite signal 100% output waveform
PEAK
When the result is not satisfactory,
Rated
adjust the noise level to 1.0 + 0.02 Vpp.
value
BOTTOM