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GDM-5402
Connect the communication cable of the computer to the connector located on the D board. Run the service software and then follow
the instruction.
IBM AT Computer
Convergence Rough Adjustment
(1) Receive an image of the white crosshatch signals (white
lines on black).
(2) Place the protrusions of the 6-fold poles magnet attached to
the CRT neck upon each other.
(3) Make rough adjustment of the H and V direction conver-
gence by using 4-fold poles magnet.
YCH
H-TRP
YBH
APH
XBV
XCV
* Set so that the protruding parts of
the 2 magnet rings agree with
each other.
XCV
XBV
B
R
TLV
YCH
R
B
B
R
Convergence Specification
A
V
1
1-690-391-21
as a Jig
D-sub
mini Din
(9 Pin [female])
(8Pin)
*The parts above (
1
TLH
TLH
R
B
R
YBH
R
B
R
B
60kHz
fH
0.20 mm
A
0.24 mm
B
2
A-1500-819-A
3
3-702-691-01
Interface Unit
Connector Attachment
4 Pin
4 Pin
4 Pin
) are necessary for DAS adjustment.
3
White Balance Adjustment Specification
1. 9300 K
x = 0.283
y = 0.298
(All White)
2. 6500 K
x = 0.313
y = 0.329
(All White)
Purity
4-pole magnet
3. 5000 K
6-pole magnet
x = 0.346
2-pole magnet
y = 0.359
(All White)
Vertical and Horizontal Position and Size
Specification
A
a
Focus adjustment
Adjust the focus volume 1 and 2 for the optimum focus.
B
B
R
B
60kHz>
0.24 mm
0.28 mm
To BUS CONNECTOR
0.005
0.005
0.005
0.005
0.005
0.005
b
4 : 3
MODE
b
B
388
A
a
291
B
a
2.0 mm
b
2.0 mm
FBT
5 : 4
364
291
Focus 1
Focus 2
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