Panasonic PVDM2092 - MONITOR/DVD COMBO, Руководство по обслуживанию

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scope probe to TP6205. Used TP6205 as a trigger.
3. Select PG SHIFTER in EVR adjustment mode and adjust value so
that the trailing edge of the head switching pulse is placed 6 H±1
H (0.38 ms±0.06 ms) before the start of the vertical sync pulse.
Fig. E7
7.3.9. SUB CONTRAST ADJUSTMENT
Purpose:
To set the optimum sub contrast level.
Symptom of Misadjustment:
The picture is too dark or too light.
Test Point :
Pin 5 of P6001 (Main C.B.A.)
or TP49 (CRT C.B.A.)
Adjustment :
SUB CONTRAST (EVR),
Specification :
3.0 V[p-p]±0.1 V[p-p]
INPUT :
Video Input Jack,
Crosshatch Pattern Signal 1 V[p-p]
(75 terminated)
Mode :
STOP
Equipment :
Oscilloscope,
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