(No.YA387)1-29
4.8.5 MTS CIRCUIT [1.Digital Service]
SUB TINT
Remote
control unit
[1.Adjust]
S04 : TINT
[ Method of adjustment without measuring instrument ]
• SUB CONTRAST adjustment should be finished.
(1) Receive any broadcast.
(2) Set VIDEO STATUS to
"STANDARD"
.
(3) Select COLOR TEMPERATURE to
"LOW"
.
(4) Select the
2.TV-Micro Service
from the SERVICE
MODE.
(5) Select the
1. Adjust
.
(6) Select
< S04 >
(TINT).
(7) Set the initial setting value of the
< S04 >
.
(8) If the tint is not the best with the initial setting values,
make fine adjustment until you get the best tint.
(9) Press the
[MUTING]
key to memorize the set value.
Signal
generator
Oscilloscope
Remote
control unit
TP-B
TP-E
[CRT SOCKET PWB]
[1.Adjust]
S04 : TINT
[ Method of adjustment using measuring instrument ]
• SUB CONTRAST adjustment should be finished.
(1) Input the full color bar signal includes the 75% white.
(2) Set VIDEO STATUS to
"STANDARD"
.
(3) Select COLOR TEMPERATURE to
"LOW"
.
(4) Select the
2.TV-Micro Service
from the SERVICE
MODE.
(5) Select the
1. Adjust
.
(6) Select
< S04 >
(TINT).
(7) Set the initial setting value of the
< S04 >
.
(8) Connect the oscilloscope between
TP-B
and
TP-E
.
(9) Adjust
< S04 >
and bring the voltage of
(B)
in the
illustration to
+17V
. (voltage difference between
white and magenta).
(10) Press the
[MUTING]
key to memorize the set value.
Item
Measuring
instrument
Test point
Adjustment part
Description
W
C
Y
G
R
M
B
(B)
(
)
(
)
0V
Item
Measuring
instrument
Test point
Adjustment part
Description
MTS INPUT
LEVEL
Remote
control unit
[1.Adjust]
A01: IN LEVEL
(1) Receive any broadcast.
(2) Select the
1.Digital Service
from the SERVICE
MODE.
(3) Select the
1.Adjust
.
(4) Select the
< A01 >
(IN LEVEL).
(5) Set the initial setting value of
< A01 >
.
(6) Press the
[MUTING]
key to memorize the set value.
MTS
SEPARATION
TV audio
multiplex
signal
generator
Oscilloscope
Remote
control unit
R OUT
L OUT
[AUDIO OUT]
[1.Adjust]
A02: LOW SEP
A03: HIGH SEP
(1) Input the stereo L signal (300 Hz) from the TV audio
multiplex signal generator to the antenna terminal.
(2) Connect an oscilloscope to R OUT pin of the AUDIO
OUT, and display one cycle portion of the 300 Hz
signal.
(3) Select the
1.Digital Service
from the SERVICE
MODE.
(4) Select the
1.Adjust
.
(5) Select the
< A02 >
(LOW SEP).
(6) Set the initial setting value of
< A02 >
.
(7) Adjust the
< A02 >
so that the stroke element of the
300Hz signal will become minimum.
(8) Press the
[MUTING]
key to memorize the set value.
(9) Input the stereo R signal (3kHz) and change the
connection of the oscilloscope to L OUT pin of the
AUDIO OUT.
(10) Similarly adjust
< A03 >
(HIGH SEP).
(11) Press the
[MUTING]
key to memorize the set value.
L-Channel
signal waveform
R-Channel
crosstalk portion
Minimum
Input the stereo R signal
(3kHz) and change
1 cycle
