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

D1025TM
3. Receive White cross-hatch.
4. Adjust HMC and VMC at six-pole magnet.
< 6 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 Mg.
VR Adjustment on DY
YCH
Zero Position NECK Ass'y
Purity
Vertical and Horizontal Position and Size
Specification
A
B
b
G
1
G
1
B
R
R
B
R
B
B
R
R
B
B
XCV
TLV
4-Pole Mg 6-Pole Mg
a
a < 2.5 mm
b < 2.5 mm
a
A B
202 270
b
Convergence Specification
B
A
Focus adjustment
Adjust focus (V) and focus (H) for optimum focus.
FBT
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
A-BOARD
Focus (V)
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