— 10 —
* Desolder the IF pad to open.
BCC Adjustment
Signal
generator
Pattern
generator
EV-2500
set
Oscilloscope
Input
TP2
Output
TP5(VC)
Input
Input
Input
Output
Output
Connection Point
Signal
Connection
Point
Adjust
Result
Pattern
generator
Signal
generator
TP2
T300
Oscilloscope
TP5
Adjust T300 so that the
difference
between pulses
A and B is less
than 0.1 V.
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
Color bar
38.9 MHz
(EV-200C,I,N)
39.5 MHz
(EV-200D)
70
±
3 dB
µ
5.0 ± 0.5 V
-0.5 ± 0.25 V
VR303
Oscilloscope
TP8
Adjust VR303 so that the
high level of the square wave
is at -0.5
±
0.25 V.
Pulse B
Pulse A
