JVC AV28BH7ENS Service Manual page 18

Measuring
Item
instruments
BOW Signal
adjustment gener ator
Remote
control unit
TRAPEZIUM Signal
adjustment gener ator
Remote
control unit
Test point Ad justment part
BOW
TRAPEZ
Parallel
No. 51967
Description
1. Receive a cross-hatch signal.
2. Select BOW with the UP/DOWN ( / ) key.
3. Adjust BOW with the LEFT/RIGHT (
vertical line straight.
4. Check and readjust BOW item if the adjustment bec omes
improper after some other geometric adjustments are done.
5. Press the INFORMATION key and memorize the set value.
NOTE
In cas e where there is a bow-s haped distortion of
images on the screen. (Figure)
1. Receive a cross-hatch signal.
2. Select TRAPEZ with the UP/DOWN ( / ) key.
3. Adjust TRAPEZ with the LEFT/RIGHT ( / ) key till vertical
lines, especially lines at the sides of the picture frame
became parallel to the both sides of picture tube as c lose as
possible.
4. Check and readjust TRPEZ item if the adjustment bec omes
improper after some other geometric adjustments are done.
5. Press the INFORMATION key and memorize the set value.
AV28BH7ENS / AV28BH7ENB
AV28BH7EPS / AV28BH7EPB
AV28BH7EES / AV28BH7EEB
/ ) key and the
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