IBM 655743N Service Manual - Page 21

Vertical and Horizontal Position and Size

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Page 21 highlights

6557-03N/03S/43N/43S Connect the communication cable of the computer to the connector located on the D board on the monitor. Run the service software and then follow the instruction. IBM AT Computer as a Jig 1 1-690-391-21 2 A-1500-819-A Interface Unit 3 3-702-691-01 Connector Attachment To BUS CONNECTOR D-sub (9 Pin [female]) mini Din (8Pin) 4 Pin 4 Pin 4 Pin *The parts above ( 1 3 ) are necessary for DAS adjustment. • 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. (Fig. 1) (3) Make rough adjustment of the H and V direction conver- gence by using 4-fold poles magnet. XCV • Convergence Specification Phospher edge MODE Zone N. Hemisphere S. Hemisphere C fH> A Zone

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6557-03N/03S/43N/43S
Connect the communication cable of the computer to the connector located on the D board on the monitor.
Run the service software
and then follow the instruction.
•
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. (Fig. 1)
(3) Make rough adjustment of the H and V direction conver-
gence by using 4-fold poles magnet.
•
White Balance Adjustment Specification
(1) COLOR
INDEX = 3
x = 0.283 ± 0.02
y = 0.298 ± 0.02
(All White)
(2) COLOR
INDEX = 2
x = 0.313 ± 0.02
y = 0.329 ± 0.02
(All White)
(3) COLOR
INDEX = 1
x = 0.346 ± 0.02
y = 0.359 ± 0.02
(All White)
•
Vertical and Horizontal Position and Size
Specification
•
Focus adjustment
Adjust the focus volume 1 and 2 for the optimum focus.
•
Convergence Specification
4-2
IBM AT Computer
as a Jig
1-690-391-21
1
A-1500-819-A
Interface Unit
2
*The parts above (
) are necessary for DAS adjustment.
1
3
D-sub
(9 Pin [female])
mini Din
(8Pin)
4 Pin
3-702-691-01
Connector Attachment
3
To BUS CONNECTOR
4 Pin
4 Pin
Protrusions
60°
Fig. 1
Fig. 3
XCV
YBH
XBV
APH
TLH
TLV
YCH
Purity
*
Set so that the protruding parts
of the 2 magnet rings agree
with each other.
FOCUS 1
FOCUS 2
B
a
a
2.6 mm
b
2.6 mm
a
b
b
A
MODE
A
B
Other
352 mm
264 mm
6, 8
330 mm
264 mm
B
A
Phospher edge
V
H
MODE
fH>
60 kHz
fH<
60 kHz
Zone
A Zone
B Zone
C Zone
A Zone
B Zone
C Zone
N. Hemisphere
<0.3 mm
<0.3 mm
<0.4 mm
<0.3 mm
<0.4 mm
<0.45 mm
S. Hemisphere
<0.3 mm
<0.4 mm
<0.45 mm
<0.35 mm
<0.45 mm
<0.5 mm
C
XBV
XCV
R
B
B
R
R
B
B
R
B
B
R
H. AMP
H. TILT (TLH)
R
B
B
R
V. TILT (TLV)
YBH
YCH
R
B
R
B
R