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3. 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
R583
[CH o / p] buttons
Tape
M. EQ.
---
Frequency Counter 15.734 kHz±300 Hz
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 1-6-1.)
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.)
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 display is closest to 15.734
kHz ± 300 Hz.
6. Turn the power off and on again.
4. 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.
Mode
Input
Test Point
Video
---
Spec.
Note: J271(B-OUT) --- Main CBA
1. Connect Oscilloscope to J271.
2. Input a color bar signal from RF input.
3. Press [0] button on the remote control unit and
4. Press [CH o / p] buttons on the remote control
5. Turn the power off and on again.
1-6-2
Adj. Point
J271
[CH o / p]
(B-OUT)
buttons
Tape
M. EQ.
Oscilloscope
---
Pattern Generator
Figure
minimum
Enter the Service mode. (See page 1-6-1.)
select C-TRAP mode. (Fig. 3)
unit so that the carrier leakage B-Out (3.58 MHz)
value becomes minimum on the oscilloscope.
Mode
Input
---
Color Bar
Spec.
---
Fig. 2
T5517EA
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