JVC LT-26A60BU Service Manual page 18

Item No. Item name
D028 PC S BRI
D029 TXT S CON
D030 TXT S BRI
D031 RGB S CON
D032 RGB S BRI
D033 STD BRI1
D034 STD CON
D035 STD BRI2
D036 STD SHA
D037 STD COL
D038 STD TIN
D039 SFT BRI1
D040 SFT CON
D041 SFT BRI2
D042 SFT SHA
D043 SFT COL
D044 SFT TIN
D045 BRI BRI1
D046 BRI CON
D047 BRI BRI2
D048 BRI SHA
D049 BRI COL
D050 BRI TIN
D051 PWM
4.7 ADJUSTMENT PROCEDURE
4.7.1 VIDEO CIRCUIT
Measuring
Item
instrument
WHITE Remote
BALANCE control unit
(HIGHLIGHT)
Signal
generator
1-18 (No.YA314)
Variable range Setting value
000 - 063 030
000 - 127 024
000 - 127 016
000 - 127 048
000 - 127 048
000 - 031 025
000 - 031 016
000 - 031 016
000 - 031 016
000 - 031 016
000 - 031 016
000 - 031 014
000 - 031 014
000 - 031 014
000 - 031 014
000 - 031 014
000 - 031 016
000 - 031 031
000 - 031 018
000 - 031 016
000 - 031 018
000 - 031 016
000 - 031 016
000 - 031 008
Test point Adjustment part
[1.ADJUST]
S013: R DRIVE (Red drive)
S015: G DRIVE (Green drive)
S017: B DRIVE (Blue drive)
Description
(1) Receive a PAL 75% all white signal.
(2) Set PICTURE MODE to "STANDARD".
(3) Set ZOOM to "FULL".
(4) Set COLOUR TEMP. to "NORMAL".
(5) Select "1.ADJUST" from the SERVICE MODE.
(6) Set < S013 > (R DRIVE), < S015 > (G DRIVE)
and < S017 > (B DRIVE) to "145".
(7) Adjust to Keep one of < S030 > (Red drive),
< S031 > (Green drive) or < S032 > (Blue drive)
unchanged, then lower the other two so that the
all-white screen is equally white throughout.
NOTE:
Set one or more of < S013 >, < S015 >, and
< S017 > to "145".
(8) Check that white balance is properly tracked
from low light to high light. If the white balance
tracking is deviated, adjust to correct it.
(9) Press the [MUTING] key to memoirze the set
value.