Horizontal Frequency Adjustment; Horizontal Phase Adjustment; Vertical Frequency Adjustment; Focus Adjustment - Samsung CC9511 Service Manual

ALIGNMENT
Note : This adjustment requires the connection of
a personal computer to the Monitor. Although the
Monitor is adjusted before it is delivered, readjust-
ment may be required when the setting postion is
changed or when a component is replaced.
1. B
+
Adjustment
(1) Operate the monitor.
(2) Connect the plus pole of DVM(Digital Multi
Meter) to the GT pin with B
+
marking and
connect the other pole(GND) to chassis GND.
(3) Rotate the B
+
voltage adjusting control(VR601)
to provide a DC150V.
2. Horizontal Frequency Adjustment
(Illstrnment ill use,' frequency counter,scope probe)
(1) Connect the plus pole of the scope probe to
RED wire of DY and the minus pole to chassis
frame.
(2) At self raster, adjust the horizontal frequency con-
trol(VR401) so that the horizontal frequency
IS
62.7KHz.
(Free running frequency: 62.7KHz
±
500Hz)
3. Horizontal Phase Adjustment
Adjust VR106(horizontal phase control) so that the
image( or test pattern) is placed on the center of the
raster.
4. Vertical Frequency Adjustment
(Instnl1llent ill use,' frequency counter,scope probe)
(1) Connect the GND pole. of the scope probe to
chassis frame and the scope probe to DY pin
connected to yellow wire.
(2) At self raster, adjust VR303 so that the vertical
frequency is 54Hz.
(Free running frequency: 54 ± 2Hz)
S. Focus Adjustment
(1) Operate to display the full white pattern on the
screen.
28
INSTRUCTIONS
(2) Adjust the contrast control so that the brightness
is 15FIL.
(3) Change the pattern into alphabetical characters
on the screen.
(4) Rotate the focus adjusting control in FBT for the
best focus.
6. Side Pincushion Adjustment
Adjust the side pincushion control(VR304) until the
side line becomes straight.
7. Horizontal Linearity Adjustment
Adjust the horizontal linearity control(L403) until the
horizontal linearity is best.
8. Vertical Linearity Adjustment
Adjust the vertical linearity control(VR302) until the
vertical linearity is best.
9. Horizontal Centering Adjustment
Adjust VR403 until the horizontal center is set at
screen center. (Horizontal centering tolerance is
± 3 mm)
10. Vertical Centering Adjustment
Adjust VR406 until the vertical center is set at screen
center. (Vertical centering tolerance is ± 2 mm)
11. Width Adjustment
Adjust the horizontal width control(VR402) so that
the horizontal width of displayed pattern is 360
mm.(Tolerance is ± 5 mm)
12. Vertical Size Adjustment
Adjust the vertical size control(VR301) so that the
vertical size of displayed pattern is 270mm.
(Tolerance is ± 5 mm)