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JVC AV-28KH1BUF Service Manual page 19

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Measuring
Item
instrument
NTSC
Signal
HORIZONTAL
generator
SIZE
adjustment
Remote
control unit
Very
close
Picture size 100%
TELETEXT
Signal
SCREEN
generator
adjustment
Remote
control unit
4:3 TUBE
Signal
adjustment
generator
Remote
control unit
Test point
Adjustment part
NTSCHS
Screen size
TXTV
HS04_3
(1) Receive a NTSC cross-hatch signal.
(2) Enter the SERVICE MENU.
(3) Press the [RED] key, then enter the H/V adjustment
group.
(4) Select NTSCHS.
(5) Adjust NTSCHS till vertical lines on both the left and
Very
right part of the cross-hatch will be visible nor screen
close
will be so wide.
(6) Check and readjust TRAPEZ item if the adjustment
becomes improper after some other geometric
adjustments are done.
(7) Press the [INFORMATION] key and memorize the
set value.
(1) Receive a cross-hatch signal.
(2) Enter the SERVICE MENU.
(3) Press the [RED] key, then enter the H/V adjustment
group.
(4) Select TXTV.
(5) Adjust TXTV to adjust the proper vertical size of
Teletext screen.
(6) Check and readjust TRAPEZ item if the adjustment
becomes improper after some other geometric
adjustments are done.
(7) Press the [INFORMATION] key and memorize the
set value.
(1) Receive a cross-hatch signal.
(2) Enter the SERVICE MENU.
(3) Press the [RED] key, then enter the H/V adjustment
group.
(4) Select HS04_3.
(5) Adjust HS04_3 to adjust the proper horizontal size of
4:3 tube.
(6) Press the [INFORMATION] key and memorize the
set value.
Description
(No.52139)1-19

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