JVC AV-28T5BK/P Service Manual page 27

Measuring
Item
instrument
H. SIZE Signal
generator
Remote
control unit
Horizontal screen size
SIDE-PIN Signal
generator
Remote
control unit
TRAPEZIUM Signal
generator
Remote
control unit
Test point Adjustment part
[4.DEF]
5.H-SIZE
Picture size 100%
[4.DEF]
7.EW-PIN
Straight
[4.DEF]
6.TRAPEZ
Parallel
Description
(1) Receive the cross hatch signal.
(2) Set the ZOOM mode to FULL.
(3) Select 4.DEF from the SERVICE MODE.
(4) Set the initial setting value of < 5.H-SIZE >.
(5) Adjust to make sure that the horizontal screen size
of the picture size is in the bellow table.
(6) Make sure that the horizontal screen size of the
each ASPECT mode is in the below table.
(7) Press the [MENU] key to memorize the set value.
(8) Input a NTSC VIDEO signal (60Hz) from the EXT
terminal, and make sure that the horizontal screen
size is in the table below.
ASPECT MODE FULL PANORAMIC SUBTITLE
SCREEN SIZE
92%(91%) 95%(94%)
* 14:9 ZOOM and REGULAR is length of 90%.
* The value in ( ) shows NTSC adjustment value.
(1) Receive the cross hatch signal.
(2) Set the ZOOM mode to FULL.
(3) Select 4.DEF from the SERVICE MODE.
(4) Set the initial setting value of < 7.EW-PIN >.
(5) Adjust to make the vertical lines at the right and left
edges of the screen straight. Also make sure that
the 3rd vertical lines are straight.
(6) Press the [MENU] key to memorize the set value.
(1) Receive the cross hatch signal.
(2) Set the ZOOM mode to FULL.
(3) Select 4.DEF from the SERVICE MODE.
(4) Set the initial setting value of < 6.TRAPEZ >.
(5) Adjust to bring the vertical lines at the right and left
edges of the screen parallel.
(6) Press the [MENU] key to memorize the set value.
14:9 ZOOM REGULAR
92% 495mm 450mm
(No.YA261)1-21