JVC AV-21U4 Service Manual page 24

Measuring
Item
instrument
H. BOW Signal
adjustment generator
Remote
control unit
4.7.6 VSM PRESET SETTING
Measuring
Item
instrument
VSM Remote
PRESET control unit
setting
SUB MENU 5. VSM W/B
1-24 (No.YA252)
Test point Adjustment part
[4.DEF]
11. BOW
Straight
Test point Adjustment part
[5. VSM W/B]
1. BRIGHT
2. CONT
3.COLOUR
4. SHARP
5. HUE
1. R-DRIVE
2. G-DRIVE
3. B-DRIVE
VSM PRESET BRIGHT
1. BRIGHT
***
Description
- PAL H. BOW -
(1) Receive a PAL crosshatch signal.
(2) Select 11. BOW.
(3) Set the initial setting value of 11. BOW.
(4) Adjust 11. BOW to optimize the horizontal arc
distortion.
- NTSC H. BOW -
(1) Input a NTSC crosshatch signal.
(2) Make similar adjustment of NTSC H. BOW in the
same way as for "PAL H. BOW".
(3) Press the [DISPLAY] key twice to return to the
normal screen.
Description
(1) Select 5. VSM W/B from the SERVICE MENU.
(2) Select BRIGHT with the MENU [OK] key.
(3) Set the value of 1. BRIGHT ~ 5. HUE to the values
shown in the table.
(4) Respectively select the VSM PRESET mode for
SOFT and STANDARD.
(5) Select COOL with the MENU [OK] key.
(6) Set the values of 1. R-DRIVE ~ 3. B-DRIVE to the
value shown in the table.
(7) Select the W/B preset for WARM and NORMAL,
respectively.
(8) Press the [DISPLAY] key twice to return to the
normal screen.
[Setting Values for SUB 5. VSM W/B]
VSM preset
BRIGHT
Setting item
1. BRIGHT 0
2. CONT +15
3. COLOUR 0
4. SHARP 0
5. HUE 0
W/B preset
COOL
Setting item
1. R-DRIVE 0
2. G-DRIVE 0
3. B-DRIVE 0
STANDARD SOFT
+4 +4
+4 +1
0 0
0 -10
0 0
NORMAL WARM
0 +10
+2 -4
-10 -12