Toshiba 21V53 Manuale di servizio - Pagina 5

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VS1A: Vertical Size for 50 Hz / 4:3
Enter a PAL B/G circle test pattern via RF. Change VS1A (Vertical Size) until horizontal
black lines on both the upper and lower part of the test pattern become very close to the
upper and lower horizontal sides of picture tube and nearly about to disappear. Check and
readjust Vertical Size item if the adjustment becomes improper after some other
geometric adjustments are done.
Min. Value:
Max. Value:
Recommended Value:030
VS1B: Vertical Size for 50 Hz / 16:9
Enter a PAL B/G circle test pattern via RF. Enter service menu and press GREEN
(PICTURE) button from remote controller to switch to 16:9 picture mode on service
menu. Change VS1B (Vertical Size) till the picture becomes 16:9 format. Check and
readjust Vertical Size item if the adjustment becomes improper after some other
geometric adjustments are done.
Min. Value:
Max. Value:
Recommended Value:056
VP1: Vertical Position for 50 Hz
Enter a PAL B/G circle test pattern via RF. Change Vertical Position till the test pattern is
vertically centered. Horizontal line at the center pattern is in equal distance both to upper
and lower side of the picture tube. Check and readjust Vertical Position item if the
adjustment becomes improper after some other geometric adjustments are done.
Min. Value:
Max. Value:
Recommended Value:010
HP1: Horizontal Position for 50 Hz
Enter a PAL B/G circle test pattern via RF. Change Horizontal Position until the picture
is horizontally centered. Check and readjust Horizontal Position item if the adjustment
becomes improper after some other geometric adjustments are done.
Min. Value:
Max. Value:
Recommended Value:035
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000
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063
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