Panasonic PV-M1348, Service Manual

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2-33
30
30 30
30
30
4th line
4th line
Bottom edge of the screen
Top edge of the screen
Top
Bottom
3rd line
A B
11th line
30
30 30
30
30
Top edge of
the screen
Bottom edge
of the screen
10th dotted line
11th line
3rd line
A B
9th line
V. HEIGHT/H. POSITION ADJUSTMENT
Purpose :
To set the standard vertical and horizontal picture size.
Symptom of Misadjustment :
The picture size is on the vertical and horizontal axis is
abnormal.
Test Point : ----------
Adjustment : V SIZE (EVR),
H CENTER (EVR)
Specification: Refer to descriptions below.
Input
: Video Input Jack
Monoscope Pattern Signal
Mode : STOP
Equipment : NTSC Video Pattern Generator
(Model: A, B, C, D, E, F)
1. Supply a Monoscope Pattern Signal to the Video Input
Jack.
2. Select V SIZE in EVR adjustment mode and adjust so that
the top 3rd line is just in view.
3. Confirm that the 10th dotted line is in view and that the 11th
line is out of view.
If the lines are not positioned correctly, readjust V SIZE so
that the top 3rd line is /-2mm from the top edge of
the screen. Confirm that the 10th dotted line is in view and
that the 11th line is out of view.
4. Select H CENTER in EVR adjustment mode and adjust so
that A is approximately equal to width B.
Fig. E11-1
(Model: G, H, I, J, K)
1. Supply a Monoscope Pattern Signal to the Video Input
Jack.
2. Select V SIZE in EVR adjustment mode and adjust so that
the top 4th line is just in view.
3. Confirm that the bottom 3rd line is in view and that the
bottom 4th line is out of view.
If the lines are not positioned correctly, readjust V SIZE so
that the 11th line is just in view.
4. Select H CENTER in EVR adjustment mode and adjust so
that A is approximately equal to width B.
Fig. E11-2