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[Raster Correction Circuit]
12. Vertical Height and
Linearity
Measuring
instrument
Test point
EXT trigger
Measurement
range
Input signal
Input terminal
[Raster Correction Circuit]
Symptom when
Adjustment purpose
To set vertical height.and linearity
Incorrect vertical height and linearity.
incorrectly adjusted
VIDEO signal
(monoscope)
VIDEO IN terminal
13. Horizontal Width
Symptom when
* This adjustment must follow adjustment 6 (High Voltage Control).
1. Supply a VIDEO signal (monoscope)
2. Press the "MENU" button on a remote hand unit.
3. Press the buttons "2", "3", "5" and "7" in that order.
(The screen will change to the circuit adjustment mode.)
4. Set the function to "VCH". ('AUDIO" button)
5. Select item "35 VHT'(Vertical Height). ("VIDEO" button)
6. Set the data so that the sum of the vertical markers is 3.6 (7.4% overscanning).
7. Select item "40 VLR" (Vertical Linearity).("VIDEO" button)
8. Set the data so that the largest circle is round.("ADJUST" button)
9. Write the data into memory. (Press "ENTER")
10. Terminate the circuit adjustment mode. (Press "MENU" twice)
Largest circle
» Vertical markers
Monoscope signal
Adjustment purpose
To set the width of picture.
Picture compressed or expanded horizontally.
incorrectly adjusted
Measuring
instrument
Test point
EXT trigger
Measurement
range
Input signal
Input terminal | VIDEO IN terminal
VIDEO signal
(monoscope)
"This adjustment must follow adjustment 6 (High Voltage Control).
1. Supply a VIDEO signal (monoscope).
2. Cover the RED and BLUE lenses, producing
a GREEN
monochrome picture.
3. Press the "MENU" button on a remote hand unit.
4. Press the buttons "2", "3", "5" and "7" in that order.
(The screen will change to the circuit adjustment mode.)
5. Set the function to "CONV GEO". ("AUDIO" button)
6. Select item "1 HWID". ("VIDEO" button)
7. Set the data so that the sum of the horizontal width markers is 6.0.
("ADJUST" button)
8. Write the data into memory. (Press "ENTER")
9. Terminate the circuit adjustment mode. (Press "MENU" twice)
Horizontal markers
Monoscope signal
~27-
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