1-7-3
P7753EA
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.
Note:
TP1301(BLUE) --- Sub CBA
1. Connect oscilloscope to TP1301.
2. Input a color bar signal from RF input.
Enter Service mode.
3. Enter the Service mode in TV mode.
4. Press [0] button on the service remote control unit
and select C-TRAP mode. (Display changes “C-
TRP,” “D-T TV,” “D-T EXT,” “Y SW,” “B-S,” “BS2,”
and “C-ANG” cyclically when [0] button is
pressed.)
5. Press [CH
o
/
p
] buttons on the remote control
unit so that the carrier leakage B-Out (3.58 MHz)
value becomes minimum on the oscilloscope.
4. H f
0
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.
Note:
R2583 --- Sub CBA
1. Connect frequency counter to R2583 and ground.
2. Operate the unit for at least 20 minutes.
3. Enter the Service mode in TV mode.
4. Press [2] button on the service remote control unit
and select H-ADJ mode.
5. Press [CH.
o
/
p
] buttons on the service remote
control unit so that the display will change “0” to
“7.”
6. At this moment, choose display “0” to “7” when the
frequency counter display is closest to 15.734 kHz
±
300 Hz.
Test Point
Adj. Point
Mode
Input
TP1301
(BLUE)
[CH
o
/
p
]
buttons
---
Color Bar
Tape
M. EQ.
Spec.
---
Oscilloscope
Pattern Generator
---
Figure
Fig. 2
minimum
Test Point
Adj. Point
Mode
Input
R2583
[CH.
o
/
p
] buttons
Video
---
Tape
M. EQ.
Spec.
---
Frequency Counter 15.734 kHz
±
300 Hz
Summary of Contents for CT202MW8
Page 44: ...1 11 3 Main 1 6 Sensor Schematic Diagram TV VCR Section P7754SCM1...
Page 45: ...1 11 4 P7754SCM2 Main 2 6 Schematic Diagram TV VCR Section...
Page 46: ...1 11 5 P7754SCM3 Main 3 6 Schematic Diagram TV VCR Section...
Page 47: ...1 11 6 Main 4 6 Schematic Diagram TV VCR Section P7754SCM4...
Page 48: ...1 11 7 P7754SCM5 Main 5 6 Junction A Schematic Diagram TV VCR Section...
Page 50: ...1 11 9 P7754SCSUB1 Sub 1 3 Schematic Diagram TV VCR Section...
Page 51: ...1 11 10 Sub 2 3 Schematic Diagram TV VCR Section P7754SCSUB2...
Page 52: ...1 11 11 Sub 3 3 Schematic Diagram TV VCR Section P7754SCSUB3...
Page 54: ...1 11 13 P7754SCDT1 DTV Module 1 2 Schematic Diagram TV VCR Section...
Page 56: ...1 11 15 P7754SCD1 DVD Main 1 3 Schematic Diagram DVD Section...
Page 57: ...1 11 16 P7754SCD2 DVD Main 2 3 Schematic Diagram DVD Section...
Page 58: ...1 11 17 P7754SCD3 DVD Main 3 3 Schematic Diagram DVD Section...
Page 78: ...1 17 2 P7754PEX Packing FRONT S4 S1 X1 Tape X2 X3 S3 S6 S7 S2 Packing Tape...