(No.YA086)1-19
4.6.5 VIDEO CIRCUIT ADJUSTMENT
Item
Measuring
instrument
Test point
Adjustment part
Description
WHITE
BALANCE
adjustment
Signal
generator
Remote
control unit
WdR
WdG
WdB
(1) Receive a black & white signal.
(2) Enter the SERVICE MODE.
(3) Press the [
GREEN
] key to enter the
VIDEO
adjustment group.
(4) Select
WdR
,
WdG
and
WdB
respectively.
(5) Adjust
WdR
,
WdG
and
WdB
respectively, until the
white part turns to pure white without any other colour.
(6) Press the [
INFORMATION
] key to memorize the set
value.
COLOUR
CUTOFF
LEVEL
adjustment
Signal
generator
Remote
control unit
CuR
CuG
CuB
(1) Receive a crosshatch signal.
(2) Enter the SERVICE MODE.
(3) Press the [
GREEN
] key to enter the
VIDEO
adjustment group.
(4) Select
CuR
,
CuG
and
CuB
respectively.
(5) Adjust
CuR
,
CuG
and
CuB
respectively, and set the
values of these items as
64
(contrast).
(6) Press the [
INFORMATION
] key to memorize the set
value.
PAL
Y DELAY
adjustment
Signal
generator
Remote
control unit
YDP
(1) Receive a
PAL
colour bar signal.
(2) Enter the SERVICE MODE.
(3) Press the [
GREEN
] key to enter the
VIDEO
adjustment group.
(4) Select
YDP
.
(5) Adjust
YDP
until the colour transients on the colour bar
pattern becomes as sharper and possible as colours
between transients do not mix with each other.
(6) Press the [
INFORMATION
] key to memorize the set
value.
SECAM
Y DELAY
adjustment
Signal
generator
Remote
control unit
YDS
(1) Receive a
SECAM
colour bar signal.
(2) Enter the SERVICE MODE.
(3) Press the [
GREEN
] key to enter the
VIDEO
adjustment group.
(4) Select
YDS
.
(5) Adjust
YDS
by pressing until the colour transients on
the colour bar pattern becomes as sharper and
possible as colours between transients do not mix
with each other.
(6) Press the [
INFORMATION
] key to memorize the set
value.
NTSC
Y DELAY
adjustment
Signal
generator
Remote
control unit
YDN
(1) Receive a
NTSC
colour bar signal from an external
source (e.g. FRONT AV : EXT 4).
(2) Enter the SERVICE MODE.
(3) Press the [
GREEN
] key to enter the
VIDEO
adjustment group.
(4) Select
YDN
.
(5) Adjust
YDN
by pressing until the colour transients on
the colour bar pattern becomes as sharper and
possible as colours between transients do not mix
with each other.
(6) Press the [
INFORMATION
] key to memorize the set value.
Summary of Contents for AV-29QH4BU
Page 20: ...2 8 No YA086 No YA086 2 7 MAIN PWB ASS Y 2 4 VE 20159762 MAIN PWB CIRCUIT DIAGRAM 2 4 ...
Page 21: ... No YA086 2 9 2 10 No YA086 MAIN PWB ASS Y 3 4 VE 20159762 FBT MAIN PWB CIRCUIT DIAGRAM 3 4 ...
Page 22: ...2 12 No YA086 No YA086 2 11 MAIN PWB ASS Y 4 4 VE 20159762 MAIN PWB CIRCUIT DIAGRAM 4 4 ...
Page 28: ...2 24 No YA086 No YA086 2 23 AV HEADPHONE PWB VE 20169086 AV HEADPHONE PWB CIRCUIT DIAGRAM ...
Page 29: ... No YA086 2 25 2 26 No YA086 FRONT PATTERN DIAGRAMS MAIN PWB PATTERN ...
Page 30: ...2 28 No YA086 No YA086 2 27 FRONT TOP FEATURE BOX PWB PATTERN ...
Page 32: ... No YA086 2 31 FRONT TOP LED PWB PATTERN POWER PWB PATTERN ...
