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JVC AV-48PRO Service Manual page 38

Rear projection television

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38
3. Picture
a) 50 Hz mode (PAL).
The first picture
Vt
A
. . Correcting point: Horizontal 8 x Vertical 8 (Arrow marks denote correcting point)
The second picture
Data display-
tt
Cursor (red)
Screen center
(Blinking)
The first picture
The second picture is indicated with data of top left of the first
Crosshatch pattern. Pattern colors are three color display.
Picture, therefore, convergence cannot be adjlisted by this pic-
Cursor is blinking in red. When changed, condition is last
're
memory state.
Cursor is
Data change mode in lighting,
Cursor shifting mode in blinking.
Caution:
® Receive suitable signal for adjustment. Centering of
green picture can be done in 50 Hz mode (PAL).
Display color shows the color that data change is possible.
© Centering of 80 Hz mode (NTSC) can be adjusted by
The second picture
convergence adjustment. Besides, decide the center
by cross pattern of static convergence in menu, and
adjust convergence from center to circumference.
When entering from the first picture to the second picture, cor-
recting wave of convergence is muted for one second,
During this period, the changed data is transferred from RAM
Q701 to E2PROM Q713, and saved.
No.51281

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