2-Pole Magnet Adjustment; I-Pole Magnet Adjustment; De-Focns Adjustment (Blue); Green Picture Adjustments - Sony KPR-41EXR95 Service Manual

3-3. 2-POLE MAGNET ADJUSTMENT

1. Input dot signal.
2. Enter service mode. Select R OFF of SERVICE
MODE to cut off red output.
Similarly, select B OFF to cut off blue output.
3 . Set PICTURE to maximum. Turn the green focus
variable resistor
counterclockwise to brighten the point in the dot.
4. Adjust the 2-pole magnet to position the bright
point at the center of the dot.
5 . Adjust the red and blue dots in the same way.
3-4. 4-POLE MAGNET ADJUSTMENT
1 . Input dot signal.
Enter service mode. Select R OFF of SERVICE
2.
MODE to cut off red output.
Similarly, select B OFF to cut off blue output.
Set PICTURE to maximum. Turn the green focus
3.
variable resistor (VR) in the focus block clockwise
until the dot diameter becomes 15 mm to 20 mm.
Adjust the 2-pole magnet to make the dot
4.
perfectly round.
Adjust the red and blue dot in the same way.
5.
in the focus block
0
3-5. DE-FOCUS ADJUSTMENT (BLUE)
1. Input dot signal.
2 . Turn the blue focus variable resistor (VR) in the
focus block counter clock wise so that the
diameter of the blue dot becowes

3-6. GREEN PICTURE ADJUSTMENTS

Input monoscope signal.
Enter service mode. Select R OFF of SERVICE
MODE to cut off red output.
Similarly, select B OFF to cut off blue output.
Turn RV913 and RV960, the vertical green
linearity variable resistors (V.G LIN VRs) on the
D-board, to obtain an optimum vertical linearity.
Then turn RV911, the vertical green amplitube
variable resistor (V.G SIZE VR) to set vertical
amplitude to 11.7 flames.
Note: The vertical position indicator of the
monoscope signal must be positioned at
the center by adjusting RV905, the
vertical green center position variable
resistor (V.G CENT VR) in advance.
Number of frames
8 f lmm.
I
Monoscope signal