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AV28BT5ENS / AV28BT5ENB
AV28BT5EES / AV28BT5EEB
Measuring
Item
instrument
EW
Signal
TRAPEZIUM
generator
Adjustment
16
Test point
Adjustment part
Adjust 20 ( 4 : 3 )
Adjust 31 ( 16 : 9 )
No. 51881
Description
1. Receive a PAL circle pattern signal.
2. Set < 4 : 3 aspect mode > .
3. Select < ADJUST 15 > from SERVICE MENU.
4. Change EW Trapezium till vertical lines, especially lines at
the sides of the picture frame became parallel to the both
sides of picture tube as possible.
5. Check and readjust EW Trapezium item if the adjustment
becomes improper after some other geometric adjustment.
6. Set < 16 : 9 aspect mode > .
7. Adjusts with the step which is the same above from 3 to 5
about the 16 : 9 aspect mode, too.
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