Icom IC-7800 Service Manual Addendum page 399

SOFTWARE ADJUSTMENTS–Continued
ADJUSTMENT ADJUSTMENT CONDITION
EXTERNAL • Connect an SSG to [ANT1] connec-
1
AGC tor and set as;
Frequency
2
Level
Modulation
HF • Set the SSG as;
1
Frequency
S-METER
Level
• Set the SSG as;
2
Level
• Set the SSG as:
3
Level
50 MHz • Set an SSG as;
1
S-METER Frequency
Level
• Set an SSG as;
2
Level
• Set an SSG as;
3
Level
REFERENCE • Connect a frequency counter to the
1
FREQUENCY J490 (MAIN unit).
• Push [F2 (REF)] to enter the REF
adjustment mode.
NOTE: Adjustment the reference
frequency at least 5 minutes has
been past from the IC-7800's main
power (on the rear panel) is turned
ON.
After adjustment exiting from the adjustment mode when the transceiver is power OFF.
*This output level of a standard signal generator (SSG) is indicated as SSG's open circuit.
AGC(RX-DSP)A
: 14.1515 MHz
AGC(RX-DSP)B
: 3.2 mV* (–37 dBm)
: OFF
: 14.1515 MHz
: OFF
: 50 µV* (–73 dBm)
: 50 mV* (–13 dBm)
: 51.1515 MHz
: OFF
: 50 µV* (–73 dBm)
: 50 mV* (–13 dBm)
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DISPLAY
Push [F-7 (SET)] to set the external AGC level
and selects the next adjustment item.
Push [F-7 (SET)] to set the external AGC level
and selects the next adjustment item.
• Push [F-7 (SET)] to set the HF S0 meter indi-
HF S0 LEVEL
cation and selects the next adjustment item.
NEVER change the SSG output level until 2
short beeps are sound.
• Push [F-7 (SET)] to set the HF S9 meter indi-
HF S9 LEVEL
cation and selects the next adjustment item.
NEVER change the SSG output level until 2
short beeps are sound.
• Push [F-7 (SET)] to set the HF S9+60 meter
S9+60 LEVEL
indication and selects the next adjustment
item.
NEVER change the SSG output level until 2
short beeps are sound.
• Push [F-7 (SET)] to set the 50 MHz S0 meter
50M S0 LEVEL
indication and selects the next adjustment
item.
NEVER change the SSG output level until 2
short beeps are sound.
• Push [F-7 (SET)] to set the 50MHz S9 meter
50M S9 LEVEL
indication and selects the next adjustment
item.
NEVER change the SSG output level until 2
short beeps are sound.
• Push [F-7 (SET)] to set the 50 MHz S9+60
S9+60 LEVEL
meter indication and selects the opening
screen.
NEVER change the SSG output level until 2
short beeps are sound.
Rotate [MAIN DIAL] to set the reference fre-
REF OSC
quency to 10.0000000 MHz.
Push [F-7 (SET)] to set the frequency and
return to the opening screen.
OPERATION