JVC PD-42WV74 Service Manual page 52

Mesuring
Item
instrument
SUB-SCREEN Remote control
BLACK unit
LEVEL
Signal generator
Item No. Setting value
090
F46
F47 016
F48 016
SPLIT screen Mode
Set the 0% black part in this part to the same
black color as on the left screen.
1-52 (No.YA029)
Test point Adjustment part
[8. PP]
ADM013: (NO DISPLAY)
(G offset)
[1. PICTURE/SOUND]
S13: RDRV (R DRIVE)
S15: GDRV (G DRIVE)
S17: BDRV (B DRIVE)
S19: CUTR (R CUTOFF)
S21: CUTG (G CUTOFF)
S23: CUTB (B CUTOFF)
F44: (NO DISPLAY)
(Picture control)
F45: (NO DISPLAY)
(Picture control mode sw)
F46: OUT LV.
(Output level upon
detection)
F47: LMT BTM
(Minimum value upon
detection)
F48: LMT TOP
(Maximum value upon
detection)
Adjustment item
Output level upon detection
Minimum value upon detection
Maximum value upon detection
Fig.7
Description
(1) Set "VIDEO STATUS" to STANDARD.
(2) Set "ASPECT" to FULL.
(3) Select "COLOR TEMPERATURE" to LOW.
(4) Set to SPLIT screen mode.
(5) Input NTSC signal that shows brightness gradation
portion with 0% black on both the right and the left
screen.
(6) Select "1.PICTURE/SOUND" from the SERVICE
MODE for the right screen.
(7) Set < S13 > (R DRIVE), < S15 > (G DRIVE) and
< S17 > (B DRIVE) to "255."
(8) Set < S19 > (R CUTOFF), < S21 > (G CUTOFF) and
< S23 > (B CUTOFF) to "125".
(9) Set < F44 > (Picture control) to "001" and < F45 >
(Picture control mode sw) to "000" to set Y ADJUST
MAX MODE.
(10) Set < F46 > (Output level upon detection), < F47 >
(Minimum value upon detection) and < F48 >
(Maximum value upon detection) to values as
shown in the left table.
(11) Press the [MUTING] key to memorize the set
values.
(12) Select "8. PP" from the SERVICE MODE.
(13) Adjust < ADM013 > (G offset) to set the 0% black
part on the right half of the screen to the same black
color as on the left. (Fig.7)
(14) Press the [MUTING] key to memorize the set
values.
(15) Select "1.PICTURE/SOUND" from the SERVICE
MODE.
(16) Set < F44 > (Picture control) to "000".
(17) Press the [MUTING] key to memorize the set
values.