4-2-2 (b) VERTICAL LINEARITY ADJUSTMENT
CONDITIONS
Scanning frequency:
91 kHz / 85 Hz
Display image:
Crosshatch pattern
Brightness:
Cut-off
Contrast:
Maximum
To adjust the Vertical Linearity, refer to Table 4-1
for the tolerance range.
Use control bar after selecting “V_LINEARITY
BAL” in left menu to optimize the image.
4-2-3 Trapezoid Adjustment
CONDITIONS
Scanning frequency:
91 kHz / 85 Hz
Display image:
Crosshatch pattern
Brightness:
Cut-off
Contrast:
Maximum
Use control bar after selecting
“TRAPEZOID”
in
left menu to make the image area rectangular.
Figure 4-4. Trapezoid
4-2-4 Pinbalance Adjustment
CONDITIONS
Scanning frequency:
91 kHz / 85 Hz
Display image:
Crosshatch pattern
Brightness:
Cut-off
Contrast:
Maximum
Use control bar after selecting
“PINBALANCE”
in
left menu to optimize the image.
4-2-5 Parallelogram Adjustment
CONDITIONS
Scanning Frequency:
91 kHz / 85 Hz
Display image:
Crosshatch pattern
Brightness:
Cut-off
Contrast:
Maximum
Use control bar after selecting
“PARALLEL”
in
left menu to make the image area rectangular.
Figure 4-6. Parallelogram
4-2-6 Side Pincushion Adjustment
CONDITIONS
Scanning frequency:
91 kHz / 85 Hz
Display image:
Crosshatch pattern
Brightness:
Cut-off
Contrast:
Maximum
Use control bar after selecting
“PINCUSHION”
in
left menu to straighten the sides of the image area.
4-2-7 Degauss
No adjustments are available for the degaussing
circuit. The degaussing circuit can effectively
function only once per 30 minutes.
4-2-8 Save the Data
To save the adjustment data for factory
frequencys, press
FACTORY SAVE
.
4-2-9 To Delete the User Mode Data
To delete the adjustment data from the user
modes, click “@4: USER DELETE” in right menu
.
4 Alignment and Adjustments
CF21M*
4-3
| C1 |, | C2 |
≤
2.0 mm, | D1 |, | D2 |
≤
2.0 mm.
Figure 4-7. Pincushion
A
4 mm
B
A
B
| D1 |, | D2 |
≤
2.0 mm
Figure 4-5. Pinbalance
D1
D2
D1
C2
D2
D1
C1
| A - B | < 5 mm
Summary of Contents for CF21M
Page 7: ...CF21M 6 1 6 Exploded View and Parts List ...
Page 17: ...10 Schematic Diagrams 10 6 CF21M 1 368 V IC601 1 ...
Page 19: ...10 Schematic Diagrams 10 8 CF21M 19 IC103 5 24 15 CRT Socket Red Green Blue 20 R G B Video ...
Page 21: ...10 Schematic Diagrams 10 10 CF21M Memo ...
Page 22: ...Memo 9 Wiring Diagram 9 2 CF21M ...
Page 23: ...Memo 8 Block Diagrams 8 2 CF21M ...
Page 48: ...Memo 7 Electrical Parts List 7 26 CF21M ...
Page 49: ...7 Electrical Parts List CF21M 7 27 Loc No Code No Description Specification Remarks ...
