JVC AV-32220/G, Service Manual

Page: 21 / 62

No. 51782
AV-32220
21
ADJUSTMENT OF DEFLECTION CIRCUIT
Item
Measuring
instrument
Test point Adjustment part Description
V.CENTER,
V.SIZE and
V.POSITION
adjustment Signal
generator
No.14 V SIZE
No.15 V CENTER
V.CENTER SW
(S1421)
1. Receive a crosshatch signal.
2. Make sure that the “No.15 V CENTER” of the PICTURE
SERVICE MODE is 0.
3. Use the LEFT/RIGHT keys of the MENU to set the initial
setting value for the No.14 V SIZE.
4. Adjust the vertical SCREEN size to 92% with the No.14 V SIZE
and V.CENTER SW (S1421).
Note:
Bottom of the screen is to be located within the “85%
～
95%”
range.
H.WIDTH,
SIDEPIN
CORRECT and
H.POSITION
Adjustment Signal
generator
No.16 H POSITION
SIDEPIN CORRECT
VR
H.WIDTH VR
1. Receive a crosshatch signal.
2. Adjust the SIDEPIN CORRECT. VR so that vertical lines at
both side of the crosshatch are straight.
3. Select the “No.16 H POSITION” of the PICTURE SERVICE
MODE.
4. Press the LEFT/RIGHT keys of the MENU to set the initial
setting values for the “No.16 H POSITION”.
5. Adjust the “No.16 H POSITION” until the screen will be
horizontally centered.
6. Adjust the H.WIDTH VR so that 92% of the overall crosshatch
is displayed on the screen.
7. As required, repeat above steps 2 and 6.
Picture
size
(100%)
Picture size (100%)
Screen
size
92%
Screen size 92%