JVC PD-35D30ES, Service Manual

Page: 44 / 188

PD-35D30ES
1-44 (No.52091)
SUB-SCREEN
BRIGHTNESS Remote control
unit
Signal generator
[2. V/C]
11. TWN BRG
(Sub-screen
bright) (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.
Fig.8
SUB-SCREEN
A-D OFFSET Remote control
unit
Signal generator
[2. V/C]
7. TWN HI R
(Sub-screen high
light red)
8. TWN HI B
(Sub-screen high
light blue) (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.9)
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.9)
(6) Press the [OK] key to save the value.
Fig.9
SUB-SCREEN
CONTRAST Remote control
unit
Signal generator
[2. V/C]
12. TWN CNT
(Sub-screen
contrast) (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.
Fig.10
Item
Measuring
instrument
Test point Adjustment part Description
Black and white
pattern signal
Black and white
pattern signal
0% black part
<NG>
Black and white
pattern signal
Set the 0% black part
to be brightest.
<OK>
Black and white
pattern signal
Minimize the red and blue noises
in the upper half of the sub (right) screen.
Black and white pattern signal
Black and white pattern signal
Black and white
pattern signal
Black and white
pattern signal
<NG>
Black and white
pattern signal
White part
to be white.
<OK>
Black and white
pattern signal
White part