Sharp 29WF200, Service Manual

Page: 10 / 68

10
29WF200
29WF500
10-1
10-2
BR
R
B
BR
R
B
B
X axis
Y
axis
CONVERGENCE ADJUSTMENT
No.
Adjusting point
Adjusting condition/procedure
W
aveform or others
CONVERGENCE ADJ. ( T
o
be done
after the purity adjustment.)
1.
Receive the "Crosshatch Pattern" signal.
2
.
Using the remote controller
, call NORMAL
mode.
Static convergence 1.
Overlap blue and red with the open-/closing an- gle and rotation of the 4 pole magnet.
2
.
Overlap green on blue and red with the open-/ closing angle and rotation of the 6 pole magnet.
Dynamic convergence 1
.
Fix the wedges in a position so that the deflection york neck is at the center of top bottom and left right. (Straight line and without any blur horizon- tal / vertical line.)
2
.
Adjust the Red, Blue, upper and lower of the center
Y
axis on the screen by using the
V
olume(YH,
YHC) at the deflection york. (Refer
to Fig.6-1 and 6-2.)
3
.
If the Horizontal Red, Blue (XV) on the screen center X axis is shifted, correct the Red. Blue (XV) by adjusting the balance coil on the deflection york. (Refer to Fig.6-3.)
4
.
After confirm that there is no problems on the entire screen, bond each wedge on CR
T
and glass
tape on it. Fastening the screws of DY
and mag-
net unit (purity
, 4-pole and 6-pole), then coat the
lacquer paint on DY fastening screw and magnet unit fastening screw
.
Note:
In case of poor convergence adjustment on the top and bottom of the screen, adjust DY by swing rightward and leftward. (Refer to Fig.6-4.)
1
Fig. 6-1
Adjust by
YHC
Fig. 6-2
Adjust by
YH
Fig. 6-3
Adjust by Balance Coil
CRT NECK
Lacquer
Purity Magnet
4-Pole Magnet
6-Pole Magnet.
25mm
±
0.5mm
YH YHC
Balance Coil
Fig. 6-4
Adjust by Swing DY
FOCUS ADJUSTMENT
No.
Adjusting point
Adjusting condition/procedure
W
aveform or others
FOCUS AD- JUSTMENT
1.
Receive E-5CH (Monoscope Pattern).
2
.
With the remote controller
, make the image
normal.
3.
Adjust the focus VR to make the character "575" on left bottom of monoscope as fine as possible.
1