JVC AV-28F3SJ, Service Manual

Page: 17 / 23

(No.YA225)1-17
TRAPEZIUM
adjustment Signal
generator
Remote
control unit
034 (REGULAR)
044 (PANORAMIC)
054 (14:9 ZOOM)
064 (16:9 ZOOM)
074 (16:9 ZOOM
SUBTITLE)
114 (FULL)
(1) Receive a PAL crosshatch signal.
(2) Enter the SERVICE MODE.
(3) Select ADJUST MENU.
(4) Select
034 (REGULAR).
(5) Adjust 034 until vertical lines, especially lines at the
sides of the picture frame become parallel to the
both sides of picture tubes as close as possible.
(6) Check and readjust 034 item if the adjustment
becomes improper after some other geometric
adjustments are done.
(7) Select 044 (PANORAMIC).
(8) Adjust 044 in the same procedure.
(9) Select 054 (14:9 ZOOM).
(10) Adjust 054 in the same procedure.
(11) Select 064 (16:9 ZOOM).
(12) Adjust 064 in the same procedure.
(13) Select 074 (16:9 ZOOM SUBTITLE).
(14) Adjust 074 in the same procedure.
(15) Select 114 (FULL).
(16) Adjust 114 in the same procedure.
SIDE PIN
adjustment Signal
generator
Remote
control unit
035 (REGULAR)
045 (PANORAMIC)
055 (14:9 ZOOM)
065 (16:9 ZOOM)
075 (16:9 ZOOM
SUBTITLE)
115 (FULL)
(1) Receive a PAL crosshatch signal.
(2) Enter the SERVICE MODE.
(3) Select ADJUST MENU.
(4) Select
035 (REGULAR).
(5) Adjust 035 until vertical lines close to the both sides
of the picture frame become parallel to vertical sides
of picture tube without any bending to left or to right
side of the screen.
(6) Check and readjust 035 item if the adjustment
becomes improper after some other geometric
adjustments are done.
(7) Select 045 (PANORAMIC).
(8) Adjust 045 in the same procedure.
(9) Select 055 (14:9 ZOOM).
(10) Adjust 055 in the same procedure.
(11) Select 065 (16:9 ZOOM).
(12) Adjust 065 in the same procedure.
(13) Select 075 (16:9 ZOOM SUBTITLE).
(14) Adjust 075 in the same procedure.
(15) Select 115 (FULL).
(16) Adjust 115 in the same procedure.
Item
Measuring
instrument
Test point Adjustment part Description
Parallel
Parallel