No. 51778
AV28L2EUGR
AV28L2EUBL
AV28L2EUGY
18
ADJUSTMENT OF FOCUS & SCREEN
Item
Measuring
instrument
Test point
Adjustment part
Description
Adjustment of
FOCUS
Signal
generator
FOCUS 1 VR
FOCUS 2 VR
[In HVT]
1. Receive a cross-hatch signal.
2. By turning the FOCUS 2 VR, adjust the to make the vertical
lines as fine and sharp as possible.
3. By turning the FOCUS 2 VR, adjust the picture so that the 5th
vertical line from left side of the cross-hatch picture becomes
thinnest.
4. By turning the FOCUS 1 VR, adjust the 3rd horizontal line from
the upper side may become uniform at the line center and its
periphery.
5. Carry out adjustment by repeating the steps 3 and 4 about.
6. Make sure that when the screen is darkened, the lines remain
in good focus.
Adjustment of
SCREEN VR
Signal
generator
SCREEN VR
(In HVT)
1. Press a whole black signal .
2. Press the ZOOM key and select the FLL mode.
3. Select 2. V/C from the SERVICE MENU.
4. Rotate the SCREEN VR clockwise from the full
counterclockwise position and stop it at the point where
“CLOW” status (marked in Fig.) changes from 1 to 0 (which
is indicated at the 3rd
column from the right.)
*
“CLOW” : control loopout of window.
VSM PRESET SETTING
Item
Measuring
instrument
Test point
Adjustment part
Description
Setting of
VSM PRESET
Remote
control unit
1. CONT.
2. BRIGHT
3. SHARP
4. COLOUR
5. HUE
6. WDR R
7. WDR G
8. WDR B
1. Select 5.VSM PRESET from the SERVICE MENU.
2. Select COOL with the MENU key of the remote control unit.
3. Adjust the FUNCTION UP/DOWN and -/+ key to bring the set
values of 1.CONT.
~
8. WDR B to the values shown in the
table.
4. Press the MENU key and memorize the set value.
5. Respectively select the VSM PRESET mode for NORMAL and
WARM, and make similar adjustment as in 3 above.
6. Press the MENU key and memorize the set value.
$
Refer to OPERATING INSTRUCTIONS for the PICTURE
MODE.
SCREEN VR
FOCUS 1 VR
FOCUS 2 VR
HVT
FOCUS 1 VR
FOCUS 2 VR
V/C
1. RGB BLK
00
SERVICE MODE SCREEN
CLOW
status
- / +
: STORE i : EXIT
OK
0 0 0 0 0 1 0 0
PAL
VSM preset
mode
Setting item
1.CONT.
2.BRIGHT
3.SHARP
4.COLOUR
5.HUE
6.WDR R
7.WDR G
8.WDR B
COOL
+16
0
-12
0
0
-25
-12
0
NORMAL
0
0
-12
0
0
0
0
0
WARM
-13
0
-12
-1
0
+5
0
0
SETTING VALUES OF VSM PRESET
Содержание AV28L2EUBL
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