Aiwa TV-SE1430, Руководство по обслуживанию

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9. Vertical Center
Input signal: Crosshatch
Measuring instrument: Pattern generator/PAL
9-1. Set the TV to the "Normal I" mode.
9-2. Choose V. Shift from the menu screen.
9-3. Adjust the "Vol +/-" buttons on the remote control so that
the dot mark at the center of crosshatch is positioned at the
vertical center of screen.
10-2. S-Correction
1) Choose V. S Cor from the menu screen.
2) Perform adjustment in the same way as with 6-1 Slope.
* Repeat adjustments 10-1 and 10-2 so that A=B=C is avail-
able.
10-3. Amp
1) Choose V. Amp from the menu screen.
2) Adjust the "Vol +/-" buttons on the remote control so that the
dot mark at the center of crosshatch is positioned at the verti-
cal center of screen, the circle is a perfect circle, and each
crosshatch is square.
* If vertical center is not correct, perform adjustment in 5. Ver-
tical Center again.
A
B
C
Fig.10-2
CRT center
mark
Fig.9-1
10. Vertical Size
Input signal: Crosshatch (with circle)
Measuring instrument: Pattern generator/PAL
Set the TV to the "Normal I" mode for adjustment items 10-1
_ 10-3.
10-1. Slope
1) Choose V. Slope from the menu screen.
2) Adjust the "Vol +/-" buttons on the remote control so that the
vertical length of each square is equal (A=B=C).
11. AGC
Input signal: Color bar (ANT RF=Input)
Measuring instrument: Pattern generator/PAL
Test point: 1501 6 pin RF AGC
11-1. Receive the pattern generator frequency at Pr91.
11-2. Connect an oscilloscope to the test point.
11-3. Choose AGC from the menu screen.
11-4. Use the "P " button on the remote control so that the
voltage at the test point is 2.5 VDC.
A
Fig.10-2