— 10 —
* Desolder the IF pad to open.
Tint Adjustment
Signal
generator
Pattern
generator
Oscilloscope
Input
TP2
Output
TP5
VR303
Oscilloscope
TP8
EV-2500
set
CP717
CP204
Adjust VR303 so that the
high level of the square wave
is at -0.5
±
0.25 V.
5.0 ± 0.5 V
-0.5 ± 0.25 V
0 V
Adjust
Result
AGC Adjustment
Signal
generator
Pattern
generator
EV-2500
set
IF levelmeter
Input
TP7
Output
TP2
* Short the IF pad.
Pattern
generator
TV signal
generator
TP7
VR200
IF levelmeter
TP2
Color bar
65
±
5 dB
µ
Adjust to obtain a 84
±
2 dB
µ
reading on the IF levelmeter.
Vcom Adjustment
EV-2500
set
Oscilloscope
Output
TP8
Pattern
generator
Signal
generator
Color bar
45.75 MHz
70
±
3 dB
µ
TP2
VR301
Oscilloscope
TP5
Adjust VR301 so that the
difference
between pulses
A and B is less
than 0.2 V.
Pulse B
Pulse A
Input
Input
Input
Output
Output
Connection Point
Signal
Connection
Point
