JVC AV-21RM4SP, Руководство по обслуживанию

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1-18 (No.YA080)
4.6.7 WHITE BALANCE ADJUSTMENT
RGB MODE
HORIZONTAL
SHIFT
adjustment Signal
generator
Remote
control unit
RGBH (1) Input R/G/B circle pattern signal via video input
terminal.
(2) Press [AV] key, force the TV to RGB mode.
(3) Enter the SERVICE MODE.
(4) Select RGBH with the [
]/[ ] key.
(5) Adjust RGBH with the [ ]/[ ] key until the circle
pattern is horizontally centered. ( A=B )
(6) Check and readjust RGBH item if the adjustment
becomes improper after some other geometric
adjustments are done.
Item
Measuring
instrument
Test point Adjustment part Description
A B
Item
Measuring
instrument
Test point Adjustment part Description
WHITE
BALANCE
(Low light)
adjustment Signal
generator
Remote
control unit
WR
WG
WB (1) Receive a black & white signal (colour off).
(2) Enter the SERVICE MODE.
(3) Select WR / WG / WB with the [
]/[ ] key
respectively.
(4) Adjust WR / WG / WB with the [ ]/[ ] key,
respectively, until the white part turns to pure white
without any other colour.
WHITE
BALANCE
(High light)
adjustment Signal
generator
Remote
control unit
BR
BG (1) Receive a black & white signal (colour off).
(2) Enter the SERVICE MODE.
(3) Select BR / BG with the [
]/[ ] key respectively.
(4) Adjust BR / BG with the [ ]/[ ] key, respectively
until the white part of screen make white colour.