Symphonic ST413E Service Manual page 20

3. Press "CH o / p" buttons on the service remote
control unit so that the display will change "0" to
"7." Then choose "4."
4. Turn the power off and on again, using the main
power button on the TV unit.
4. Black Level Adjustment
Purpose: Set Black Level
Symptom of Misadjustment: If Black level is incor-
rect, proper brightness can not be obtained by adjust-
ing the Brightness Control.
1. Enter the Service mode. (See page 5-1.)
2. Press "MENU" button on the service remote con-
trol unit and select "BRT" mode. (Display changes
"BRT," "CNT," "CLR," "TNT," "V-TINT" and
"SHARP" cyclically when "MENU" button is
pressed.)
3. Press "CH o / p" buttons on the service remote
control unit so that the value of "BRT" becomes
128.
4. Turn the power off and on again, using the main
power button on the TV unit.
5. V. Size Adjustment
Purpose: To obtain correct vertical height of screen
image.
Symptom of Misadjustment: If V.Size is incorrect,
vertical height of image on the screen may not be
properly displayed.
Adj. Point
CH o / p buttons
M. EQ.
Pattern Generator
Note: Use service remote control unit.
1. Operate the unit for at least 20 minutes.
2. Enter the Service mode. (See page 1-5-1.)
Press "9" button on the remote control unit and se-
lect V-S mode. (Press "9" button then display will
change to V-P and V-S.)
3. Input monoscope pattern.
4. Press "CH o / p" buttons on the service remote
control unit so that the monoscope pattern is
90±5% of display size and the circle is round.
5. Turn the power off and on again, using the main
power button on the TV unit.
6. V. Position Adjustment
Purpose: To obtain correct vertical position of screen
image.
Symptom of misadjustment: If V. Position is incor-
rect, vertical height of image on the screen may not be
properly displayed.
Note: Use service remote control unit
1. Operate the unit for at least 20 minutes.
2. Enter the Service Mode. (See page 5-1)
3. Receive the Monoscope Pattern.
4. Press "9" button on the service remote control unit
5. Press "CH o / p" buttons on the service remote
6. Turn the power off and on again, using the main
7. H. Position Adjustment
Purpose: To obtain correct horizontal position of
screen image.
Symptom of Misadjustment: If H. Position is incor-
Input
rect, horizontal position of image on the screen may
Monoscope
not be properly displayed.
Spec.
90±5%
Note: Use service remote control unit
1. Operate the unit for at least 20 minutes.
2. Enter the Service mode. (See page 5-1)
3. Receive the Monoscope Pattern.
4. Press "8" button on the remote control unit and se-
5. Press "CH o / p" buttons on the service remote
6. Turn the power off and on again, using the main
5-3
Adj. Point
Screen Control,
CH o / p buttons
M. EQ.
Pattern Generator
and select "V-P" mode. (Display change "V-S" and
"V-P" cyclically when "9" button is pressed.)
control unit so that the top and bottom of the mono-
scope pattern are equal to each other.
power button on the TV unit.
Adj. Point Mode
CH o / p buttons,
[ H-P ] Mode
M. EQ.
Pattern Generator
lect "H-P" mode.
control unit so that the monoscope pattern is
90±5% of display size and the circle is round.
power button on the TV unit.
Mode Input
RF Monoscope
Spec.
90±5%
Input
RF Monoscope
Spec.
90±5%
L2200EA