1-22 (No.YA301)
4.7
ADJUSTMENT PROCEDURE
4.7.1 VIDEO CIRCUIT
Item
Measuring
instrument
Test point
Adjustment part
Description
525i
A-D OFFSET
Remote
control unit
Signal
generator
[1.ADJUST]
S001: PREPARE
(Adjustment setting mode change)
S008: 5i CB OF(525i cb offset)
S009: 5i CR OF(525i cr offset)
S030: R DRIVE(Red drive)
S031: G DRIVE(Green drive)
S032: B DRIVE(Blue drive)
(1) Receive a 525i component ramp pattern
signal.
(2) Set "VIDEO STATUS" to
"STANDARD"
.
(3) Set "ASPECT" to
"FULL"
.
(4) Set "COLOR TEMPERATURE" to
"LOW"
.
(5) Select
"1.ADJUST"
from the SERVICE
MODE.
(6) Set
< S030 >
(R DRIVE),
< S031>
(G DRIVE)
and
< S032 >
(B DRIVE) to
"133"
.
(7) Set
< S001 >
(adjustment setting mode
change) to set
"008"
and it change to the 525i
A-D offset adjustment setting mode.
(8) Adjust
< S008 >
(525i Cb offset) and
< S009 >
(525i Cr offset) to lose the gap (red line, green
line and blue line) which appears at both ends
of a white part at the center of the screen.
(9) Set
< S001 >
to set
"000"
and it change to the
normal mode.
(10) Press the
[MUTING]
key to memoirze the set
value.
1125i
BRIGHTNESS
Remote
control unit
Signal
generator
[1.ADJUST]
S001: PREPARE
(Adjustment setting mode change)
S012: HD BL(1125i brightness)
S030: R DRIVE(Red drive)
S031: G DRIVE(Green drive)
S032: B DRIVE(Blue drive)
(1) Receive a 1125i gray scale pattern signal .
(2) Set "VIDEO STATUS" to
"STANDARD"
.
(3) Set "ASPECT" to
"FULL"
.
(4) Set "COLOR TEMPERATURE" to
"LOW"
.
(5) Select
"1.ADJUST"
from the SERVICE
MODE.
(6) Set
< S030 >
(R DRIVE),
< S031>
(G DRIVE)
and
< S032 >
(B DRIVE) to
"133"
.
(7) Set
< S001 >
(adjustment setting mode
change) to set the values
"012"
and it change
to the 1125i black level adjustment setting
mode.
(8) Adjust
< S012 >
(1125i brightness) to set the
0% black part in the upper half of the screen to
be brightest.
(9) Set
< S001 >
to set
"000"
and it change to the
normal mode.
(10) Press the
[MUTING]
key to memoirze the set
value.
1125i
A-D OFFSET
Remote
control unit
Signal
generator
[1.ADJUST]
S001: PREPARE
(Adjustment setting mode change)
S013: HD CB OF(1125i cb offset)
S014: HD CR OF(1125i cr offset)
S030: R DRIVE(Red drive)
S031: G DRIVE(Green drive)
S032: B DRIVE(Blue drive)
(1) Receive a 1125i 30% all white pattern signal.
(2) Set "VIDEO STATUS" to
"STANDARD"
.
(3) Set "ASPECT" to
"FULL"
.
(4) Set "COLOR TEMPERATURE" to
"LOW"
.
(5) Select
"1.ADJUST"
from the SERVICE
MODE.
(6) Set
< S030 >
(R DRIVE),
< S031>
(G DRIVE)
and
< S032 >
(B DRIVE) to
"133"
.
(7) Set
< S001 >
(adjustment setting mode
change) to set
"013"
and it change to the 1125i
A-D offset adjustment setting mode.
(8) Adjust
< S013 >
(1125i Cb offset) to minimize
the blue noise in the upper half of the screen.
(9) Adjust
< S014 >
(1125i Cr offset) to minimize
the blue noise in the upper half of the screen.
(10) Set
< S001 >
to set
"000"
and it change to the
normal mode.
(11) Press the
[MUTING]
key to memoirze the set
value.
Disappears the color at both ends.
Set the 0% black part to be brightest.
Minimize the red and blue noises in
the upper half of the screen.
