Icom IC-7851 Servise Manual page 30

• RX ADJUSTMENTS (continued)
ADJUSTMENT
( Continued from 12 1) Set one SSG as:
the previous
page.)
2) Turn the main dial to adjust the AF output signal.
3) Push [F-7].
13 • Push [F-7].
SUB 14 • Push [F-7].
1st MIXER BIAS
15 • Push [F-7].
16 • Push [F-7].
17 • Push [F-7].
18 1) Set one SSG as:
2) Turn the main dial to adjust the AF output signal.
3) Push [F-7].
19 1) Set one SSG as:
2) Turn the main dial to adjust the AF output signal.
3) Push [F-7].
20 1) Set one SSG as:
2) Turn the main dial to adjust the AF output signal.
3) Push [F-7].
21 1) Set one SSG as:
2) Turn the main dial to adjust the AF output signal.
3) Push [F-7].
22 1) Set one SSG as:
2) Turn the main dial to adjust the AF output signal.
3) Push [F-7].
OPERATION
• Frequency: 25.0515 MHz
• Level: –10 dBm
another SSG as:
• Frequency: 25.1515 MHz
• Level: –10 dBm
• "1st Mixer A(25.0-30.0)" is displayed.
• "1st Mixer B(0.03-1.6)" is displayed.
• "1st Mixer B(1.6-2.0)" is displayed.
• "1st Mixer B(2.0-4.0)" is displayed.
• "1st Mixer B(4.0-5.8)" is displayed.
• "1st Mixer B(5.8-8.0)" is displayed.
• Frequency: 7.2215 MHz
• Level: –10 dBm
another SSG as:
• Frequency: 7.3215 MHz
• Level: –10 dBm
• "1st Mixer B(8.0-12.0)" is displayed.
• Frequency: 10.2215 MHz
• Level: –10 dBm
another SSG as:
• Frequency: 10.3215 MHz
• Level: –10 dBm
• "1st Mixer B(12.0-15.0)" is displayed.
• Frequency: 14.2515 MHz
• Level: –10 dBm
another SSG as:
• Frequency: 14.3515 MHz
• Level: –10 dBm
• "1st Mixer B(15.0-19.0)" is displayed.
• Frequency: 18.2515 MHz
• Level: –10 dBm
another SSG as:
• Frequency: 18.3515 MHz
• Level: –10 dBm
• "1st Mixer B(19.0-22.0)" is displayed.
• Frequency: 21.2515 MHz
• Level: –10 dBm
another SSG as:
• Frequency: 21.3515 MHz
• Level: –10 dBm
• "1st Mixer B(22.0-25.0)" is displayed.
[1st Mixer A(22.0-25.0)]
[1st Mixer A(25.0-30.0)]
[1st Mixer B(0.03-1.6)]
[1st Mixer B(1.6-2.0)]
[1st Mixer B(2.0-4.0)]
[1st Mixer B(4.0-5.8)]
[1st Mixer B(5.8-8.0)]
[1st Mixer B(8.0-12.0)]
[1st Mixer B(12.0-15.0)]
[1st Mixer B(15.0-19.0)]
[1st Mixer B(19.0-22.0)]
3-17
ADJUSTMENT
VALUE
ITEM
Minimum
output level
Push [F-7].
Push [F-7].
Push [F-7].
Push [F-7].
Push [F-7].
Minimum
output level
Minimum
output level
Minimum
output level
Minimum
output level
Minimum
output level