PIONEER DVH-P7050-2
Manual de Servicio

5

6

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8

Check 5: Is the video circuit operated normally?
Reproduce DVD-REF-A1(GGV1018) 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.

A

NO. 1

Verification location (sensing pin) COMPO

Rated value 1.0±0.02Vpp

Reference waveform Waveform 6

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

PEAK

COMPO signal

Rated value Color burst Pedestal BOTTOM Horizontal periodic signal

When the result is not satisfactory, adjust the noise level to 1.0 + 0.02 Vpp.

B

Composite signal 100% output waveform

C

D

DVH-P7000R
5 6 7 8

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