(4) Screen-corner Convergence
Affii a Permalloy
corresponding to the
misconverged areas.
b
d
3-3.
FOCUS
1.
Tune in an off-air signal.
2. PICTURE
to 80%.
3. Adjust the focus VR on A board so that the
focus at the center of the screen is optimum.
A magenta ring will appear if the focus is
adjusted only in the center of the screen.
Adjust evenly throughout the entire screen.
F O C U S
3-4. G2 (SCREEN) AND WHITE BALANCE
ADJUSTMENTS
1.
(SCREEN)
1) Set the PICTURE and BRIGHTNESS to normal.
2) Confirm
voltage is within
3) Apply DC voltage of 180V to the cathodes of R,
G and B from DC stabilized power source.
4) While watching the picture, adjust the G2 control
(RV701) to the just the retrace line disappears.
(Using the Remote Commander)
2 . W H I T E B A L A N C E A D J U S T M E N T S
Set to service mode.
Press
to normal and if
necessaries “TRINITONE” set to “LOW” by
q
or
.
Input an entire white signal.
Set the PICTURE to minimum.
Select BRT with
and , and then set the
level to minimum with
and
Select G CUT and B CUT with and
And adjust the level with and for the best
white balance.
7) Set the PICTURE to maximum.
8) Select G AMP and B AMP with
1
and 4, and
adjust the level with and for the best white
balance.
9) Write into the memory by pressing
then [ENTER].
3. SUB BRIGHT ADJUSTMENT
1)
Set to service mode.
2) Input a staircase signal of black and white from
the pattern generator.
3) BRIGHTNESS
RESET
PICTURE . . . minimum
4) Select BRT with and , and adjust SUB
BRIGHT level with
and so that the stripe
second from the right is dimly lit.
w h i t e
second f
the right
