— 6 —
Pattern
generator
Signal
generator
TV-350
Set
Oscilloscope
Low-pass
filter
Input
TP2
Output
TP5
R=100 ohm
C=2700 pF
Video Detection Coil Adjsutment
TP2
VR300
TP5
Pattern
generator
Signal
generator
Color bar
38.9MHz
70dB
µ
Oscilloscope
Adjust step form wave to read
0.75
±
0.05 Vp-p.
* Open soldering pad IF.
Contrast Adjustment
TP2
T201
TP4
Adjust for 1.8
±
0.2V reading on
voltmeter.
Confirm that the marker is at
the middle of S-curve on oscil-
loscope.
Sweep
generator
Set
Oscilloscope
Voltmeter
Output
Input
* Open soldering pad IF.
TP2
TP4
AFT Coil Adjustment
Pattern
generator
Signal
generator
TP2
T200
TP3
Low-pass filter
Oscilloscope
Color bar
38.9MHz
41
±
3dB
µ
Adjust for DC level at mini-
Input
Input
Input
Output
Output
Connection Point
Signal
Connection
Point
Adjust
Result
* Open soldering pad IF.
TP3
TP2
Voltmeter
Oscilloscope
Sweep
generator
38.9
±
5MHz
(Sweep) Marker:
38.9MHz
70dB
µ
TV-350
Signal
generator
Pattern
generator
Set
Low-pass
filter
Oscilloscope
Input
Output
TV-350
R=180 ohm
C=0.01
µ
F
