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Measuring
Item
instrument
SUB-SCREEN
Remote control
BRIGHTNESS
unit
Signal generator
SUB-SCREEN
Remote control
A-D OFFSET
unit
Signal generator
Black and white pattern signal
SUB-SCREEN
Remote control
CONTRAST
unit
Signal generator
Test point
Adjustment part
[2. V/C]
11. TWN BRG
(Sub-screen
bright)
[2. V/C]
7. TWN HI R
(Sub-screen high
light red)
8. TWN HI B
(Sub-screen high
light blue)
Minimize the red and blue noises
in the upper half of the sub (right) screen.
Black and white pattern signal
Fig.6
[2. V/C]
12. TWN CNT
(Sub-screen
contrast)
Description
(1) Receive a PAL black and white pattern signal
(including 0% black signal).
(2) Select "2. V/C" from the SERVICE MENU.
(3) Adjust <11. TWN BRG> (Sub-screen bright) to set
the 0% black part in the sub (right) screen to be the
brightest.
NOTE:
If you select an adjustment item <11.TWN BRG>,
then the screen automatically turns to twin
pictures mode.
(4) Press the [OK] key to save the value.
(1) Receive a PAL black and white pattern signal
(including 0% black signal).
(2) Select "2. V/C" from the SERVICE MENU.
(3) Adjust <7.TWN HI R>(Sub-screen high light red) to
minimize the red noise in the upper half of the sub
(right) screen. (See Fig.6)
NOTE*
If you select an adjustment item <7. TWN HI R>,
then the screen automatically turns to twin pic-
tures mode.
(4) Press the [OK] key to save the value.
(5) Adjust <8.TWN HI B>(Sub-screen high light blue) to
minimize the blue noise in the upper half of the sub
(right) screen. (See Fig.6)
(6) Press the [OK] key to save the value.
(1) Receive a PAL black and white pattern signal
(colour off).
(2) Select "2. V/C" from the SERVICE MENU.
(3) Adjust <12. TWN CNT> (Sub-screen contrast) to set
the white part in the sub (right) screen to be white.
NOTE:
If you select an adjustment item <12.TWN CNT>,
then the screen automatically turns to twin
pictures mode.
(4) Press the [OK] key to save the value.
PD-42DX
(No.52088)1-43
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