JVC LT-26WX84 Service Manual page 48

Mesuring
Item
instrument
COMPONENT Remote control
INPUT A-D unit
CONVERTER
OFFSET Signal generator
Item No. Setting value
F46 090
F47 000
F48
000
Change the color in this part.
1-48 (No.YA089)
Test point Adjustment part
[8.PP]
ADM012: (NO DISPLAY)
(R OFFSET)
ADM014: (NO DISPLAY)
(B 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.4
Description
(1) Input 525i component 30% all-white signal into a
component input terminal.
(2) Set "VIDEO STATUS" to STANDARD.
(3) Set "ASPECT" to FULL.
(4) Select "COLOR TEMPERATURE" to "LOW".
(5) Select "1.PICTURE/SOUND" from the SERVICE
MODE.
(6) Set < F44 > (Picture control) to "001" and < F45 >
(Picture control mode sw) to "003" to set the
chrominance adjustment zero mode.
(7) 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.
(8) Press the [MUTING] key to memoirze the set value.
(9) Select "8.PP" from the SERVICE MODE.
(10) Change the value of < ADM014 > (B OFFSET) from
the initial value in the range of ±5 to set the upper
half of the screen magenta.
(11) Adjust < ADM012 > (R OFFSET) to change the
upper half of the screen from magenta to blue.
(12) Take a note of the value of < ADM012 > (R
OFFSET) adjusted in (11).
(13) Change the value of < ADM012 > (R OFFSET) from
the value that you have taken note of in the range of
±5 to set the upper half of the screen magenta.
(14) Adjust < ADM014 > (B OFFSET) to change the
upper half of the screen from magenta to red.
(15) Return the value of < ADM012 > (R OFFSET) to the
value that you have taken note of in (12).
(16) Press the [MUTING] key to memoirze the set value.
(17) Set the SPLIT screen mode.
(18) Input monochrome signal such as cross hatch both
to the right and the left screen.
(19) Set < ADM012 > (R OFFSET) and < ADM014 > (B
OFFSET) to the same values as in single-screen
mode.
(20) Press the [MUTING] key to memoirze the set value.
(21) Set < F44 > (Picture control) to "000" to cancel the
chrominance adjustment zero mode.
(22) Input 1125i 30% all-white signal.
(23) Repeat steps (5) to (21) above.
(24) Press the [MUTING] key to memoirze the set value.