JVC AV-27F713 Service Manual page 24

AV-27F703
AV-27F713
AV-27F803
Measuring
Item
instrument
V. HEIGHT Signal
V. LINEARITY generator
adjustment
(16:9)
B
[B=B]
B
Adj. Item Setting
point No. item
D08 V. SIZ E+-
B
D14 V. LIN+-
H. POSITION Signal
H. SIZE & generator
SIDE PIN
adjustment
(4:3)
Screen size (90.0%)
Screen
size
(90.0%)
Picture size (100%)
No. Setting item
D03 H. POSI
D15 H. SIZE
D23 EW PARA
D19 EW CR TOP
D21 EW CR BMT
24
Test point Adjustment part
D18:V. SIZE+-
D14:V. LINE+-
Variable Setting value
range (mm)
-128～127
50mm
-128～127
D03:H.POSI.
D15:H. SIZE
D23:EW PARA
D19:EW CR TOP
D21:EW CR BMT
Picture
size
(100%)
Variable Initial setting
range value
0～31 20
33
0～63
36
0～63
12
0～31
14
0～31
No. 52005
Description
＊ Regular (4:3) size V. HEIGHT / V. CENTER adjustment s hould
be fi nished.
1. Receive a blac k -and- white signal (color off).
2. Select 16:9 as pect mode with remote c ontr ol unit.
3. Confirm that the width of V. BLANKING is equal to adjus tment
val ue (B).
4. If the adjustment is not correct, enter the SERVIC E MENU.
5. Then adj ust the D 08:V. SIZE+- and D 14:V. LIN+- to be same
to adjustment value (B).
6. Press the EXIT key to twice to return the nor mal screen.
(NOTE)
＊ When you c hange the VERTICAL adj ustment value of the
regular mode (4:3), Revi ew the adjustment of 16:9 mode
again.
＊ V. HEIGHT / V. POSITION adjustment s hould be fi nished.
1. Receive a cross-hatch signal.
2. Enter the SERVICE MENU.
3. Select the D03: H. POSI from 2.DEF (D) item.
4. Adjust by H. POSIT ION to be same size at both side.
5. Then adj ust the horizontal size of the visible scr een at both
size to 90% with the D 15:H.SIZE.
6. And adj ust the vertical line at both si de to become linear line by
D23:EW PARA.
7. Confirm the linearity of vertical line and horizontal size/
8. If it is necess ary, readjust 1.～ 7.
9. Press the EXIT key twice to return the nor mal screen.
(NOTE)
＊ If it is not str aight the vertic al upper and bottom corner line
adjustment the upper and bottom corner pin by D19:EW CR
TOP and D21:EW CR BTM.