JVC LT-52GZ79 Service Manual page 19

Item No. Item
M177 1EB0
M178 1EB1
M179 1EB2
M180 1EB3
M181 1EB4
M182 1EB5
M183 1EB6
M184 1EB7
M185 1EB8
M186 1EB9
M187 1EBA
M188 1EBB
M189 1EBC
M190 1EBD
M191 1EBE
M192 1EBF
M193 1EC0
M194 1EC1
M195 1EC2
M196 1EC3
M197 1EC4
M198 1EC5
M199 1EC6
M200 1EC7
M201 1EC8
M202 1EC9
M203 1ECA
4.7 ADJUSTMENT PROCEDURE
4.7.1 VIDEO CIRCUIT
Measuring
Item
instrument
WHITE Remote
BALANCE control unit
(HIGHLIGHT)
Signal
generator
Variable range Setting value
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
Test point Adjustment part
[1.ADJUST]
S001: R DRIVE (Red drive)
S002: G DRIVE (Green drive)
S003: B DRIVE (Blue drive)
Item No. Item
M204 1ECB
M205 1ECC
M206 1ECD
M207 1ECE
M208 1ECF
M209 1ED0
M210 1ED1
M211 1ED2
M212 1ED3
M213 1ED4
M214 1ED5
M215 1ED6
M216 1ED7
M217 1ED8
M218 1ED9
M219 1EDA
M220 1EDB
M221 1EDC
M222 1EDD
M223 1EDE
M224 1EDF
F001 DD
F002 RAM REF
D001 RESERV
Z001 RESERV
(1) Receive a PAL 75% all white signal.
(2) Set PICTURE MODE to "Standard".
(3) Set ZOOM to "Full".
(4) Set 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 "137".
(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 memorize the set
value.
Variable range Setting value
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
00 - FF ---
0 - 1 ---
0 - 1 ---
0 - 255 ---
0 - 255 ---
Description
(No.YA665<Rev.001>)1-19