Receiver Adjustment - Icom IC-7000 Service Manual

4-5 RECEIVER ADJUSTMENT

ADJUSTMENT ADJUSTMENT CONDITION
RX PEAK 1 • Operating freq : 14.15000 MHz
(HF/50 MHz) • MODE
• RIT
• AGC
• NB
• Preamp
• Connect an SSG to [ANT1] con-
nector and set as;
Frequency
Level
Modulation
• Receiving
ADJUSTMENT ADJUSTMENT CONDITION
TOTAL GAIN 1 • Enter the adjustment mode.
(HF/50 MHz) • Push [F-3 (RX)].
2 • Connect an SSG to [ANT1] con-
nector and set as;
Level
Modulation : OFF
• Connect an AC millivoltmeter to
[EXT SP] jack with an 8 Ω load.
• Receiving
S-METER 1 • Connect an SSG to [ANT1] con-
(HF/50 MHz) nector and set as;
Frequency : 14.15150 MHz
Level
• Receiving
2 • Set an SSG as;
Level
• Receiving
3 • Set an SSG as;
Level
• Receiving
RECEIVE 1 • Connect an SSG to [ANT2] con-
SENSITIVITY nector and set as;
(VHF/UHF) Frequency : 60.2015 MHz
Level
Modulation : OFF
• Receiving
2 • Set an SSG as ;
Frequency : 90.8015 MHz
• Receiving
3 • Set an SSG as ;
Frequency : 128.8015 MHz
• Receiving
4 • Set an SSG as ;
Frequency : 129.2015 MHz
• Receiving
5 • Set an SSG as ;
Frequency : 145.3015 MHz
• Receiving
*The output level of a standard signal generator (SSG) is indicated as SSG's open circuit.
UNIT
REAR
: USB panel
: OFF
: FAST
: OFF
: ON
: 14.15150 MHz
: 500 µV* (–53 dBm)
: OFF
Total Gain(HF/50 M)
: 500 µV* (–53 dBm)
or OFF
: OFF
: 50 µV* (–73 dBm)
: 32 mV* (–17 dBm)
Tuned BPF(60 M)
: 10 µV* (–87 dBm)
Tuned BPF(90 M)
Tuned BPF(128 M)
Tuned BPF(129 M)
Tuned BPF(145 M)
MEASUREMENT
LOCATION
C o n n e c t a n A C
millivoltmeter to [EXT
SP] jack with an 8 Ω
load.
DISPLAY
Set 30 dB of AF level difference between
500 µV and no signal input from the SSG
using with [DIAL]. Then push [F-4 (SET)].
S0 Level Push [F-4 (SET)].
S9 Level Push [F-4 (SET)].
S9+60 Level Push [F-4 (SET)].
Push [F-4 (SET)].
Push [F-4 (SET)].
Push [F-4 (SET)].
Push [F-4 (SET)].
Push [F-4 (SET)].
4 - 11
ADJUSTMENT
VALUE
UNIT ADJUST
Maximum AF MAIN
output level
OPERATION
L702,
L703