1-34 (No.YA460)
4.7.3 VIDEO CIRCUIT
Item
Measuring
instrument
Test point
Adjustment part
Description
WHITE
BALANCE
(HIGHLIGHT)
Remote
control unit
Signal
generator
[1.ADJUST]
S001: R DRIVE (Red drive)
S002: G DRIVE (Green drive)
S003: B DRIVE (Blue drive)
(1) Receive a PAL 75% all white pattern.
(2) Set "PICTURE MODE" to
"STANDARD"
.
(3) Set "ZOOM" to
"FULL"
.
(4) Select "WHITE BALANCE" to
"MID"
.
(5) Select
"1.ADJUST"
from the SERVICE
MODE.
(6) Adjust to keep one of
<S001>
(Red drive),
<S002>
(Green drive) or
<S003>
(Blue drive)
unchanged, then lower the other two so that
the all-white screen is equally white
throughout.
NOTE:
Set one or more of
<S001>
,
<S002>
, and
<S003>
to
"138"
.
(7) Check that white balance is properly tracked
from low light to high light. If the white balance
tracking is deviated, adjust to correct it.
(8) Press the
[MUTING]
key to memoirze the set
value.
