(No.YA061)1-25
4.8.4 VIDEO CIRCUIT
Item
Measuring
instrument
Test point
Adjustment part
Description
WHITE
BALANCE
Signal
generator
Remote
control unit
[2. V/C]
2.CUTOFF R / G
3.WDR R / G / B
(1) Receive the black and white signal (colour off).
(2) Set the ZOOM mode to FULL.
(3) Set the PICTURE mode to STD.
(4) Set the COLURTEMP. to NORMAL.
(5) Select 2.V/C from the SERVICE MENU.
(6) Select < 2.CUTOFF >.
(7) Each select (R), (G) and adjust the screen until the
black portion in the screen becomes black.
(8) Select < 3.WDR >.
(9) Each select (R), (G), (B) and adjust the screen until
the white portion in the screen becomes white.
NOTE:
Do not adjust < 3. WDR G >.
(10) Press the [MENU] key and memorize the set value.
(11) Change the contrast and brightness from low-light to
high-light and check that the tracking of the white
balance is good.
SUB BRIGHT
Remote
control unit
[2. V/C]
4. BRIGHT
(1) Receive the any broadcast.
(2) Set the ZOOM mode to FULL.
(3) Set the PICTURE mode to STD.
(4) Select 2.V/C from the SERVICE MENU.
(5) Select < 4.BRIGHT >.
(6) Set the initial setting value of < 4.BRIGHT >.
(7) If the brightness is not the best with the initial setting
value, make fine adjustment until you get the best
brightness.
(8) Press the [MENU] key and memorize the set value.
SUB
CONTRAST
Remote
control unit
[2. V/C]
5. CONT.
(1) Receive the any broadcast.
(2) Set the ZOOM mode to FULL.
(3) Set the PICTURE mode to STD.
(4) Select 2.V/C from the SERVICE MENU.
(5) Select < 5.CONT >.
(6) Set the initial setting value of < 5.CONT >.
(7) If the contrast is not the best with the initial setting
value, make fine adjustment until you get the best
contrast.
(8) Press the [MENU] key and memorize the set value.
SUB COLOUR-1
Remote
control unit
[2.V/C]
6.COLOUR
(PAL/NTSC)
[Method of adjustment without measuring instrument]
PAL COLOUR
(1) Receive PAL broadcast.
(2) Set the ZOOM mode to FULL.
(3) Set the PICTURE mode to STD.
(4) Select 2.V/C from the SERVICE MENU.
(5) Select < 6.COLOUR >.
(6) Set the initial setting value of < 6.COLOUR >.
(7) If the colour is not the best with the initial set value,
make fine adjustment until you get the best colour.
(8) Press the [MENU] key and memorize the set
value.
NTSC 3.58 COLOUR
(1) Input the NTSC 3.58MHz signal from the EXT
terminal.
(2) Make similar fine adjustment of NTSC 3.58
COLOUR in the same manner as for above.
NTSC 4.43 COLOUR
(1) When NTSC 3.58 COLOUR set, NTSC 4.43
COLOUR will automatically set.
1
2
3
4
5
6
7
8
9
REMOTE CONTROL UNIT KEY
CUTOFF R
ً
WDR R
ً
CUTOFF R
ٕ
WDR R
ٕ
WDR B
ً
WDR B
ٕ
CUTOFF G
ً
WDR G
ً
CUTOFF G
ٕ
WDR G
ٕ
