Dell D1025TM - UltraScan 1000HS - 17" CRT Display Service Manual - Page 14

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Dell D1025TM - UltraScan 1000HS - 17
D1025TM
3.
Receive White cross-hatch.
4.
Adjust HMC and VMC at six-pole magnet.
Six-Pole Magnet
2
2
5.
Receive R.B. cross-hatch.
6.
Adjust H.TILT by swinging the DY neck right and left.
7.
Adjust XCV with XCV core.
XCV movement
8.
Adjust V.TILT with TLV VR.
TLV movement
9.
Adjust Y.CROSS with YCH VR.
YCH movement
R
10.
Paint lock the four-pole and six-pole magnet.
VR Adjustment on DY
YCH
Zero Position NECK Ass'y
Purity
Vertical and Horizontal Position and Size
Specification
a
a
A
B
b
b
G
1
G
1
B
R
R
B
R
B
B
R
R
B
B
XCV
TLV
Four-Pole Mg
Six-Pole Mg
a < 2.5 mm
b < 2.5 mm
A
B
202
270
Convergence Specification
B
A
Focus adjustment
Adjust focus (V) and focus (H) for optimum focus.
11.
Digital Convergence Adjustment
A. Horizontal Convergence
0
CBH-LT
MBH-LT
12
4
APH-L
8
MBH-LB
6
CBH-LB
Adjust each misconvergence point in sequence.
B. Vertical Convergence
0
CCV-LT
MCV-LT
12
4
XBV-L
8
MCV-LB
6
CCV-LB
Adjust each misconvergence point in sequence.
C. Repeat the procedure of A and B so that the
convergence of the whole screen is within the
specification.
— 14 —
Horizontal and Vertical
0.30mm
A
0.24mm
0.30mm
B
0.30mm
Focus (H)
YBH-T
2
9
CBH-RT
MBH-RT
11
3
APH-R
H STAT
7
MBH-RB
1
5
CBH-RB
YBH-B
V STAT-T
2
9
CCV-RT
MCV-RT
11
3
XBV-R
V STAT
7
MCV-RB
1
5
CCV-RB
V STAT-B