JVC AV-48WP30 Service Manual page 38

DEFLECTION CIRCUIT ADJUSTMENT
Measuring
Item
instrument
V. POSITION Signal
generator
/ SIZE
/ LINEARITY
Remote
adjustment
control unit
C
H. POSITION
adjustment
D
H. SIZE
adjustment
Test point Adjustment part
D01 : V. SIZE
D05 : V. LINEARITY
D06 : V. CENTER
SERVICE SW
(S801)
[CONVERGENCE
PWB]
A
B
D14 : H-CENTER
E
D03 : H-SIZE
Screen size
(92%)
Picture size
100%
1. It pushes a power switch while pushing SERVICE SW S801 on
the CONVERGENCE PWB then it makes picture without
convergence operation.
2. Set the FULL mode.
3. Receive a circle pattern signal.
4. Select 1.PICTURE/SOUND from the SERVICE MENU.
5. Select D01 ＜ V SIZE ＞ , D05 ＜ V LINEARITY ＞ ,
D06 ＜ V CENTER ＞ with the FUNCTION ( ▲ / ▼ ) key.
6. Adjust D06, D02 to make A = B (precision ±2mm), and adjust
to make C = 45mm
7. Press the MUTING key and memorize the set value.
NOTE : To memorize every time after finish adjustment on
each mode. Do not adjust D04 ＜ V. S-CORRECTION
＞ If it is different V position after adjust V linearity, to
adjust V position.
8. Select D14 ＜ H-CENTER ＞ with FUNCTION ( ▲ / ▼ ) key.
9. Adjust D14 with FUNCTION ( / ) key and make D = E
as shown figure.
10. Press the MUTING key and memorize the set value.
11. Receive a cross-hatch signal.
12. Select D03 ＜ H-SIZE ＞ with the FUNCTION ( ▲ / ▼ ) key.
13. Adjust D03 and make sure that the vertical screen size of the
picture size is 92%.
14. Press the MUTING key and memorize the set value.
No. 51914
AV-48WP30
Description
37