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2-1. H Adjustment
Purpose: To get correct horizontal position and size of
screen image.
Symptom of Misadjustment: Horizontal position and
size of screen image may not be properly displayed.
Test point
Adj. Point
CH o / p
R583
buttons
Tape
M. EQ.
---
Frequency Counter 15.734kHz±300Hz
Note: R583 --- Main CBA
1. Connect Frequency Counter to R583.
2. Set the unit to the VIDEO mode and no input is
necessary. Enter the Service mode.
(See page 1-4-1.)
3. Operate the unit for at least 20 minutes.
4. Press "2" button on the remote control unit and
select H-Adj Mode. (Press "2" button, then display
will change H-Adj and AGC.)
5. Press CH o / p buttons on the remote control unit
so that the display will change "0" to "7."
At this moment, choose display "0" to "7" when the
Frequency
counter
15.734kHz±300Hz.
6. Turn the power off and on again.
2-2. H VCO Adjustment
Purpose: To get correct horizontal position and size of
screen image.
Symptom of Misadjustment: Horizontal position and
size of screen image may not be properly displayed.
1. Enter the Service Mode. (See page 1-4-1.)
2. Press "2" button on the remote control unit to enter
H VCO Adj Mode.
3. If needed, perform the following.
CH
button
H-ADJ
4
CH
button
Mode
Input
Video
---
Spec.
display
is
closest
to
H-ADJ
5
2-3. C-Trap Adjustment
Purpose: To get minimum leakage of the color signal
carrier.
Symptom of Misadjustment: If C-Trap Adjustment is
incorrect, stripes will appear on the screen.
Test point
Adj. Point
J271
CH o / p
(B-OUT)
buttons
Tape
M. EQ.
Oscilloscope
---
Pattern Generator
minimum
Note: J271 (B-Out)--- Main CBA
1. Connect Oscilloscope to J271.
2. Input a color bar signal from RF input.
Enter the Service mode. (See page 1-4-1.)
3. Press "0" button on the remote control unit and
select C-TRAP Mode.
4. Press CH o / p buttons on the remote control unit
so that the carrier leakage B-Out (3.58MHz) value
becomes minimum on the oscilloscope.
5. Turn the power off and on again.
1-7-2
Mode
Input
---
Color Bar
Spec.
---
Figure
Fig. 2
T5408EA
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