Troubleshooting - JVC LT-26AX5/S Service Manual

4.7 ADJUSTMENT PROCEDURE
4.7.1 VIDEO CIRCUIT
Measuring
Item
instrument
WHITE Remote
BALANCE control unit
(HIGHLIGHT)
Signal
generator
This service manual does not describe TROUBLESHOOTING.
1-18 (No.YA344)
Test point Adjustment part
[1.ADJUST]
S013: R DRIVE (Red drive)
S015: G DRIVE (Green drive)
S017: B DRIVE (Blue drive)
SECTION 5

TROUBLESHOOTING

Description
(1) Receive a PAL 75% all white signal.
(2) Set PICTURE MODE to "STANDARD".
(3) Set ZOOM to "FULL".
(4) Set WHITE BALANCE 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.