9. Focus Adjustment
Purpose: Set the optimum Focus.
Symptom of Misadjustment: If Focus Adjustment is incorrect, blurred images are shown on the display.
Test Point | Adj. Point | Mode | Input |
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Focus Control | Monoscope | ||
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Tape | M. EQ. |
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Pattern Generator | See below | ||
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Note: Focus VR
FBT = Fly Back Transformer
1.Operate the unit more than 30 minutes.
2.Face the unit to the East and degauss the CRT using a degaussing coil.
3.Input the monoscope pattern.
4.Adjust the Focus Control on the FBT to obtain a clear picture.
10. H. Position Adjustment
Purpose: To obtain correct horizontal position of screen image.
Symptom of Misadjustment: H. position may not be properly displayed.
Test Point | Adj. Point | Mode | Input | |
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[CH. o / p] | Monoscope | |||
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Tape | M. EQ. |
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Pattern Generator |
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1.Enter the Service mode. (See page
2.Input monoscope pattern.
3.Press [CH. o / p] buttons on the remote control unit so that the left and right side of the monoscope pattern are equal to each other.
11. V. Shift Adjustment
Purpose: To obtain correct vertical position of screen image.
Symptom of Misadjustment: If V. position is incorrect, vertical position of image on the screen may not be properly displayed.
Test Point | Adj. Point | Mode | Input | ||
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[CH. o / p] | Monoscope | ||||
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Tape | M. EQ. | Spec. |
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Pattern Generator |
1.Enter the Service mode. (See page
2.Input monoscope pattern.
3.Press [CH. o / p] buttons on the remote control unit so that the top and bottom of the monoscope pattern are equal to each other.
12. V. Size Adjustment
Purpose: To obtain correct vertical height of screen image.
Symptom of Misadjustment: If V. Size is incorrect, vertical height of image on the screen may not be properly displayed.
Test Point | Adj. Point | Mode | Input | ||
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[CH. o / p] | Monoscope | ||||
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Tape | M. EQ. | Spec. |
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Pattern Generator | 90±5% |
1.Enter the Service mode. (See page
2.Input monoscope pattern.
3.Press [CH. o / p] buttons on the remote control unit so that the monoscope pattern is 90±5% of display size and the circle is round.
T2202EA |