Icom IC-7700 Service Manual page 26

4-7-2 AUTOMATIC ADJUSTMENTS (TRANSMITTER)
ADJUSTMENT ADJUSTMENT CONDITION
PREPARATION 1 1) Connect an Audio Generator to the MIC jack and set it as;
2) Connect an RF power meter to the [ANT1].
3) Connect an terminator (SWR=2) to the [ANT2].
POWER METER 1
(HF BAND)
<Preset>
<10 W> 2 • Transmitting (Automatically)
<50 W> 3 • Transmitting (Automatically)
<100 W> 4 • Transmitting (Automatically)
<150 W> 5 • Transmitting (Automatically)
<200 W> 6 • Transmitting (Automatically)
POWER METER 7 • Transmitting (Automatically)
(50 MHz BAND)
<50 W> 8 • Transmitting (Automatically)
<100 W> 9 • Transmitting (Automatically)
<150 W> 10 • Transmitting (Automatically)
<195 W> 11 • Transmitting (Automatically)
[RESERVE 1
POWER SET]
(NO AJUSTMENT)
POWER DOWN 1 • Transmitting (Automatically)
ALC METER 1 • Transmitting (Automatically)
DRIVE LEVEL 1 • Transmitting (Automatically)
DRAIN VOLTAGE 1 • Transmitting (Automatically)
METER
DRAIN 1 • Transmitting (Automatically)
CURRENT
METER
0A
5A 2 • Transmitting (Automatically)
10A 3 • Transmitting (Automatically)
SWR METER 1 • Transmitting (Automatically)
Frequency : 1.5 kHz
Level : 10 mV
–
–
OPERATION
• Push [F-7] key.
1) Adjust the transmit power using
[MAIN DIAL].
2) Push [F-7] key.
1) Adjust the transmit power using
[MAIN DIAL].
2) Push [F-7] key.
• "RESERVE POWER SET" appears.
Push [F-7] key.
1) Adjust the transmit power using
[MAIN DIAL].
2) Push [F-7] key.
• Push [F-7] key.
• Push [F-7] key.
• Push [F-7] key.
• Push [F-7] key.
• Monitoring drain current on the
display, adjust the current using
[MAIN DIAL], then push [F-7] key.
• Monitoring drain current on the
display, adjust the current using
[MAIN DIAL], then push [F-7] key.
• Push [F-7] key.
(Returns to adjustment main menu)
4 - 14
ADJUSTMENT
VALUE
ITEM
– –
[POWER HF/
–
50M 0W]
[POWER HF
10 W
10W]
[POWER HF
50 W
50W]
[POWER HF
100 W
100W]
[POWER HF
150 W
150W]
[POWER HF
195 W
200W]
[POWER 50M
10 W
10W]
[POWER 50M
50 W
50W]
[POWER 50M
100 W
100W]
[POWER 50M
150 W
150W]
[POWER 50M
195 W
200W]
– –
[POWER for
Power Down 100 W
HF/50M]
(Automatic
[ALC]
adjustment)
(Automatic
[DRIVE]
adjustment)
(Automatic
[Vd48V]
adjustment)
[Id 0A] –
[Id 5A] 5 A
[Id 10A] 10 A
(Automatic
[SWR]
adjustment)