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Video Detection Coil Adjustment
TP2
VR300
TP5
Pattern
generator
Signal
generator
Oscilloscope
* Desolder the IF pad to open.
Contrast Adjustment
TP2
T201
TP4
Adjust to obtain a 1.4
±
0.2 V
reading on the voltmeter.
Confirm that the marker is at
the middle of the S-curve on
the oscilloscope.
* Desolder the IF pad to open.
AFT Coil Adjustment
Pattern
generator
Signal
generator
TP2
T200
TP3
Input
Input
Input
Output
Output
Connection Point
Signal
Connection
Point
Adjust
Result
* Desolder the IF pad to open.
Voltmeter
Oscilloscope
Sweep
generator
Pattern
generator
Signal
generator
Input
TP2
Oscilloscope
Vcc2-3
EV-500
set
Adjust so
that the step
form wave
becomes 2.2
±
0.1 Vp-p.
Adjust to obtain the minimum
DC level.
Low-pass filter
Oscilloscope
Input
TP2
EV-500
set
Output
TP3
Low-pass
filter
Pattern
generator
Signal
generator
Oscilloscope
Sweep
generator
EV-500
set
Input
TP2
Output
TP4
Voltmeter
Oscilloscope
Output
TP5
2.2 ± 0.1 V
P.P
Color bar
45.75 MHz
45
±
3 dB
µ
45.75
±
5 MHz
(sweep) marker:
45.75 MHz
70
±
3 dB
µ
Color bar
45.75 MHz
70
±
3 dB
µ
10 kohm
CP312 (KILLER)
