How To Enter; Sub Contrast Adjustment - Panasonic AG-513F Service Manual

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1. Enter EVR PG Shifter Adjustment mode, refer to

EVR PG SHIFTER ADJUSTMENT

2. Connect the channel-1 scope probe to TP3001 and the channel-2

scope probe to TP6205. Used TP6205 as a trigger.

3. 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.

4. Release EVR PG Shifter Adjustment Mode.

The adjusted value will be written to Memory IC (IC6004).

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 (TV/VCR 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."

Fig. E5

"HOW TO ENTER

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