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JVC AV-48PRO Service Manual page 34

Rear projection television

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ITEM
ELECTRICAL
ADJUSTMENT
ADJUSTMENT PROCEDURE
WIDTH
(wID)
VERTICAL LINEARITY
(VLIN)
2. Press the TV/VIDEO button on Remote until the cross-hatch pattern appears
on the screen.
3. Press the VOLUME & or ¥ button to
obtain the picture of the best linearity
rH
Ch
4
Center
HEIGHT
1. Call up the adjustment mode display, then select the item HIT.
(HIT)
2. Press the VOLUME 4 or ¥ button to get the picture so the top of
(RCUT)
(@CUT)
(BCUT}
(RDRV)
(BDRV)
34
WHITE BALANCE
1
2.
3.
Note : Check the horizontal picture position is correct.
3. Press the VOLUME & button to advance the data by 9 steps.
Note : Check the vertical picture position is correct,
Black and White pattern
aRon
.
Call up the adjustment mode dispiay, then select the item VLIN.
. Set user control to reset position.
. Call up the adjustment mode display, then select the item RCUT.
. Adjust the data of items RCUT, GCUT, and BCUT to "40H".
. Press the -© button on PUTV. (Y-MUTE : ON)
. Gradually rotate R, G and B screen volume of FOCUS PAC clockwise or coun-
. Press the -© button on PJTV. (Return to Normai Picture)
. Press the -© button on Remote, and select the Black and White patiern.
. Adjust the data of items RCUT, GCUT and BCUT fer proper white-balanced
. Adjust the data of items RDRV and BDRV for proper white-balanced picture in
. Check the white balance in-both low and high light areas.
Call up the adjustment mode display, then select the item WID.
Press the VOLUME 4 or ¥ button to get the picture so the left
and right edges of raster begins to lack.
Press the VOLUME 4 or W button to advance the data by 7
steps.
raster begins to lack.
High light area
Adjust "RDRV" or "BDRV" to be white.
a
Low light area
Fine adjust "RCUT", "GCUT" or "BCUT" to be black,
CONTRAST > Max
BRIGHTNESS, COLOR, TINT -+ Center. )
terclockwise until the raster appears slightly on the CRT through the each lens,
and leave them.
(Lookin to the lens in order to check the raster.)
picture in low light area.
high fight area.
If necessary; perform again steps from 8 to 9.
No.51281

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Av-48prox