JVC AV-29BF11ENS Service Manual page 19

■ ■ ■ ■ GEOMETRY MENU ADJUSTMENT (Adjust 4:3MODE / 16:9MODE respectively)
Measuring
Item
instruments
VERTICAL Signal
generator
SIZE
adjustment
Remote
(50Hz)
control unit
Very close
Screen
size
Very close
VERTICAL Signal
POSITION generator
adjustment
(50Hz) Remote
control unit
VERTICAL Signal
generator
S-CORREC-
TION
Remote
adjustment
control unit
(50Hz)
Test point Adjustment part
VSIZ
Picture
size
100%
VPOS
A
B
VSCO
No. 52084
Description
1. Receive a PAL B/G cross-hatch pattern of vertical frequency
50Hz.
2. Enter SERVICE MENU.
3. Press the GREEN key on the remove control unit then enter
the GEOMETRY MENU.
4. Select VSIZ (Vertical size) with the FUNCTION ( / ) key.
5. Adjust VSIZ with the FUNCTION (
horizontal black lines on both the upper and lower part of the
pattern become very close to the upper and lower horizontal
sides of picture size and nearly about to disappear.
6. Check and readjust VSIZ item if the adjustment becomes
improper after some other geometric adjustments are done.
1. Receive a PAL B/G circle pattern signal of vertical frequency
50Hz.
2. Enter GEOMETRY MENU.
3. Select VPOS (Vertical position) with the FUNCTION ( / )
key.
4. Adjust VPOS with the FUNCTION ( / ) key until the circle
pattern is vertically centered.(A=B)
5. Check and readjust VPOS item if the adjustment becomes
improper after some other geometric adjustments are done.
1. Receive a PAL B/G cross-hatch pattern signal of vertical
frequency 50Hz.
2. Enter GEOMETRY MENU.
3. Select VSCO (Vertical s-correction) with the FUNCTION
( / ) key.
4. Adjust VSCO with the FUNCTION ( / ) key until the vertical
length of the center squarer of the cross-hatch pattern
becomes equal to upper and lower part squares of the cross-
hatch pattern.
5. Check and readjust VSCO item if the adjustment becomes
improper after some other geometric adjustments are done.
AV-29BF11ENS
AV-29BF11EPS
AV-29BF11EES
/ ) key until the
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