5-4
L6118EA
8. C-Trap Adjustment
Purpose:
To get minimum leakage of the color signal carrier.
Symptom of Misadjustment:
If C- Trap Adjustment
is incorrect, stripes will appears on the screen.
Note:
TP300 (GND), D316 (Cathode) --- MAIN CBA
Use Service remote control unit.
1. Connect Oscilloscope to D316 (Cathode) and
TP300 (GND).
2. Enter the Service mode. (See page 5-1) Receive
color bar signal from RF Input.
3. Press "0" button on the Service remote control unit
and select C-TRP Mode.
4. Press "CH
o
/
p
" buttons on the Service remote
control unit so that the display will change "0," "1,"
"2" and "3." Choose display "0," "1," "2" or " 3 "
when B-Out (3.58MHz) value becomes minimum
on the oscilloscope reading.
5. Turn the power off and on again, using the main
power button on the TV unit.
9. V. Size Adjustment
Purpose:
To obtain correct vertical height of screen image.
Symptom of Misadjustment:
If V. Size is incorrect, verti-
cal size of image on the screen may not be properly dis-
played.
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
and select "V-S" mode. (Display changes "V-S" and
"V-P" cyclically when "9" button is pressed.)
5. Press "CH
o
/
p
" buttons on the Service remote
control unit so that the monoscope pattern be-
comes 90±5% of display size and the circle is
round.
6. Turn the power off and on again, using the main
power button on the TV unit.
Test Point
Adj. Point
Mode
Input
D316 (Cathode)
(Blue)
TP300
(GND)
CH
o
/
p
buttons
RF
Color
Bar
Tape
M. EQ.
Spec.
---
Oscilloscope
---
Test Point
Adj. Point
Mode
Input
---
Screen Control
CH
o
/
p
buttons [ V-S ]
Mode
RF
Mono
scope
Tape
M. EQ.
Spec.
---
Monoscope
90±5%
