Toshiba 43VJ33Q Service Manual page 7

Hide thumbs Also See for 43VJ33Q:
Table of Contents

Advertisement

In case of warming up of more than 2 hours under a condition
that the large anode current is running through the projection
tube so that for example the all-white pattern appears, adjust
to obtain the sharpest focus while observing the whole screen
like in the RED case.
11. Use the focus VR of "G" of the focus pack in order to ad-
just the electric focus in the middle section of the screen
to its sharpest level.
Note: Normally the most clearly visible point of the scanning
line is the sharpest point of the Green focus, however as
the characteristics vary depending on the projection tube,
the sharpest focus points of the vertical and horizontal
lines may not match each other, thus when you turn the
focus VR, if the picture tends to be tremendously unstable
(rolls horizontally or vertically), adjust the balance of the
vertical and horizontal lines to its best position.
12. Check the GREEN focus of the whole screen and if
necessary repeat steps 10 and 11.
13. Fix the GREEN lens by tightening up its fixing screws.
14. Expose only BLUE by covering the RED and GREEN
lenses with caps.
15. Loosen the BLUE lens fixing screws (refer to Fig. a), and
adjust the BLUE lens focus while observing the middle
and peripheral screen sections.
16. Use the focus VR of "B" of the focus pack in order to adjust
the focus in the middle section of the screen to its sharpest
level.
(The point of the Blue focus becomes sharpest when the
brightness level of BLUE is lowest, the cross-hatch is
clearly visible.)
17. Check the BLUE focus of the whole screen and if neces-
sary repeat steps 15 and 16.
18. Fix the BLUE lens by tightening its fixing screws.
All manuals and user guides at all-guides.com
- 7 -
TILT ADJUSTMENT
Rotate R, G, B deflection yoke so that picture becomes hori-
zon, then fasten screw.
CENTERING ADJUSTMENT
1. Stretch threads towards the center of the screen (top and
bottom, left and right).
2. Enter to the user's Convergence Adjustment Mode from
the menu.
3. Adjust G centering magnet so that the cross pattern cen-
ter comes to screen center.
4. Perform HEIGHT adjustment . (See page 14.)
5. Perform VERT. LINEARITY adjustment. (See page 14.)
6. Perform WIDTH adjustment. (See page 14.)
7. Check whole quality of green line.
8. Adjust R, B centering magnet so that the cross pattern
center comes to screen center.

Advertisement

Table of Contents
loading

This manual is also suitable for:

50vj33q

Table of Contents