Advertisement
SERVICE ADJUSTMENT
WARNING:
BEFORE SERVICING THIS CHASSI
RAY RADIATION PRECAUTION",
"SAFETY PR!
CAUTION" AND "PRODUCT SAFETY NOTICE® ON
PAGE 3 OF THIS MANUAL.
PICTURE TUBE COMPONENTS ADJUSTMENT
ADJUSTING PROCEDURE IN REPLACING CRT
Cutoff
-—» User convergence center check
2. Press " +d * button to display the built-in cross-hatch.
Lens focus
Centering (PAL)
3. Press "q}" and" }* buttons to make the picture a single
Red color.
Electrical focus
Convergence adjustment
Gd button . .
to erase Red color
(PAL/NTSC)
'GF button . .
to erase Green color
> button .
to erase Blue color
Yoke horizonta
—
Sub bright adjustment
White balance
End
3XTEST SIGNAL SELECTION page 31.
DESCRIPTION OF NECK COMPONENTS
@
Deflection yoke and convergence yoke.
The position on the neck is required most front (CRT fun-
nel side) and the screw is fastened after rotating yoke
adjusting picture tilt.
® Centering magnet
After adjusting picture tilt, picture position is finally fixed
by this magnet.
In order to-get maximum margin of user convergence con-
trol for center of screen, this magnet have to be used for
center convergence adjustment.
R, G, B FOCUS ADJUSTMENT
1. Select the adjustment mode. (See page 30.)
4. Loosen the fasten screw and adjust Red lense focus to
best focusing point of picture center, Then fasten the screw,
(See Fig. a.)
Fig. a
5, Adjust FOCUS VR "R" of FOCUS PAC 1o find best focus-
ing point of picture center.
6. Repeat steps 3 to 5 for Green and Blue colors.
ALIGNMENT MAGNET ADJUSTMENT (This Item will be
made design modification (delete) without notice)
1
PREPARATION
Operate the receiver for at least 5 minutes.
R, G, B CUTOFF (SCREEN VR) ADJUSTMENT
1. Adjust before replace the screen assembly.
2. Set user control to reset position.
CONTRAST -> Max
BRIGHTNESS, COLOR, TINT -> Center. )
3. Cail up the adjustment mode display, then select the
item RCUT. (See page 30.)
4, Adjust the data of items RCUT, GCUT, and BCUT to
"40H",
. Press the © button on PJTV. (Y-MUTE : ON)
6. Gradually rotate R, G and B screen volume of FOCUS
PAC clockwise or counterclockwise until the raster
appears slightly on the CRT through the each lens, and
leave them.
(See page 28.)
(Lookin to the lens in order to check the raster.)
7. Press the -€) button on PUTY. (Return to Normal
Picture)
a
26
lf
:
a 2-pole(P)
4-pole(4)
~~
g-pole(6)
. .. 6-pole is not adjusted.
{Cancelled condition)
i.
Set the 2-pole, 4-pole and 6-pole magnets to can-
cetled condition.
{To realize the cancelled position, set marking letters on
tabs to match front to back.)
2.
Receive test signal of white cross-bar.
Rotate Focus VR to just a little left from optimum focusing.
4.
Adjust 2-pole magnet so that thick area of luminance is
located to cenier of thin area of luminance.
°
No.51281
Advertisement
