Icom IC-7600 - Page 32

4 - 13
4-7 MAIN UNIT ADJUSTMENT (SCOPE CIRCUIT)
ADJUSTMENT ADJUSTMENT CONDITION OPERATION
ADJUSTMENT
POINT
VALUE
SCOPE
DISPLAY
1 • Frequency : 14.200 MHz
(Main band)
• Mode : CW
• [DUALWATCH] : "OFF"
• [P.AMP] : "OFF"
• [ATT] : "OFF"
• [SCOPE] : "ON"
• [SCOPE ATT] : "OFF"
• [SPAN] : "±25 kHz"
• Receiving
• Connect an SSG to [ANT1] and set
as;
Frequency : 14.200 MHz
Modulation : None
Level
: +54 dBµ
†
(–53 dBm)
L6032
→
L6037
→
L6041
→
L6023
→
L6028
→
C6076
(in sequence)
and
L6023, L6028,
C6076
(repeatedly)
Maximum
waveform
on the
SCOPE
screen
2• Connect an SSG to J6001 and set
as;
Frequency : 71.715 MHz
Modulation : None
Level :
+100 dBµ
†
(–7 dBm)
C6076
Minimum
waveform
on the
SCOPE
screen
3• Connect an SSG to [ANT1] and set
as;
Frequency : 14.200 MHz
Modulation : None
Level : +54 dBµ
†
(–53 dBm)
L6023, L6028
(repeatedly)
Maximum
waveform
on the
SCOPE
screen
SCOPE GAIN 1 • Receiving 1) Connect an SSG to [ANT1] and set
as;
Frequency : 14.200 MHz
Modulation : None
Level
: +54 dBµ
†
(–53 dBm)
2) Adjust the waveform to set the peak of
the wave spectrum reaches the 6th scale.
R6071 (See fi g.1)
SCOPE ATT 1 • [SCOPE ATT] : "30 dB"
• Receiving
1) Connect an SSG to [ANT1] and set
as;
Frequency : 14.200 MHz
Modulation : None
Level
: +54 dBµ
†
(–53 dBm)
2) Adjust the waveform to set the peak of
the wave spectrum reaches the 3rd scale.
R6043 (See fi g.2)
†
; The output level of the standard signal generator (SSG) is indicated as the SSG’s terminated circuit.
J81
<fig. 1>
6th scale
<fig. 2>
3rd scale
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