WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRE-
CAUTION" AND "PRODUCT SAFETY NOTICE" ON PAGE 3 OF THIS MANUAL.
PICTURE TUBE COMPONENTS ADJUSTMENT
ADJUSTING PROCEDURE IN REPLACING CRTRGB FOCUS ADJUSTMENT
1. Call-up the adjustment mode (see page 10)
CutoffUser convergence center check
2. Press a button on the remote controller in order to dis-
play the internally-generated white cross-hatch (or white
Lens focusCentering (PAL)
cross-dot). (White cross-hatch or white cross-dot on a black
Convergence adjustmentbackground. See TEST SIGNAL SELECTION on page 11.)
Electrical focus
(PAL/NTSC)3. Expose only RED by covering the GREEN and BLUE
lenses with caps.
GENERAL ADJUSTMENTS
4. Loosen the RED lens fixing screws (refer to Fig. a), and
Yoke horizontalSub bright adjustment
adjust the RED lens focus to obtain the sharpest point
while observing the middle and peripheral sections of the
White balance
screen.
End
DESCRIPTION OF NECK COMPONENTS
1
2
Fig. a
5. Use the focus VR of OR� of the focus pack in order to adjust
the electric focus in the middle and peripheral sections of
the screen to its sharpest level.
S.V.M. COIL
6. Check the RED focus of the whole screen and if neces-
1 Deflection yoke and convergence yoke.
sary repeat steps 4 and 5.
The position on the neck is required most front (CRT fun-
7. Fix the RED lens by tightening its fixing screws.
nel side) and the screw is fastened after rotating yoke ad-
8. Expose only GREEN by covering the RED and BLUE
justing picture tilt.
lenses with caps.
2Centering magnet
9. Display the internally-generated white cross-hatch (or white
After adjusting picture tilt, picture position is finally
cross-dot) signal.
fixed by this magnet.
10. Adjust the GREEN lens focus on the left border of the
In order to get maximum margin of user convergence con-
screen to its sharpest level, then check the focus on the
trol for center of screen, this magnet have to be used for
right border, and if it is at its sharpest level, fix it in that
center convergence adjustment.
position by tightening the lens screws.
PREPARATION
Operate the receiver for at least 5 minutes.(1) If the horizontal line toward the right border is red-
flared, turn the lens screw slightly right in order to
R, G, B CUTOFF (SCREEN VR) ADJUSTMENTbalance it with the left border. (After adjustment, the
1. Adjust before replace the screen assembly.left border tends to be slightly green-flared, and the
2. Set user control to reset position.right border tends to be slightly red-flared.)
CONTRAST ? Max(2) If the horizontal line toward the right border is green-
()
BRIGHTNESS, COLOR, TINT ? Center.flared, turn the lens screw slightly left in order to
3. Call up the adjustment mode display, then select thebalance it with the left border. (After adjustment, the
item RCUT.left border tends to be slightly red-flared, and the
4. Adjust the data of items RCUT, GCUT, and BCUT to
right border tends to be slightly green-flared.)
"40H".
5. Press the a 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.
(Lookin to the lens in order to check the raster.)
7. Press the a button on PJTV. (Return to Normal
Picture)
� 6 � |
ACEC
TOSHIBA
