Icom IC-R7100 Service Manual page 51

RECEIVER ADJUSTMENT (Continueel)
MEASUREMENT
ADJUSTMENT
POINT
ADJUSTMENT
ADJUSTMENT CONDITIONS
VAlUE
UNIT
lOCATION UNIT ADJUST
CENTER 1 • Displayed frequency: 150.0000 MHz
MAI N
Connect Ihe 2.7 V
MAIN R224
METER - Mode
: FM
oscmosccce or
• Conneet Ihe SSG 1 0 Ihe [ANT]
digital multl-meter to
connector end set as :
the cathode of 061 .
Level : 32 uV' ( -77 dBm)
Modulation : OFF
• R32 In the MAIN UNIT: Center
2 • Mode: WFM
•
R155
3 • Conneet Ihe SSG 10 the [ANT]
Conneet Ihe 1.27 V R32
connector end set as: oscIIloscope or
l e vel : 32 uV' (-77 dBm)
diglt al rnultl-met er 10
Modulation : OFF
the cathode of 0 4.
CENTER 1
• Displayed frequency : 150.0000 MHz MAIN Conneet Ihe
OV MAIN R78
STOP
-Mode : FM OscIIloscope to me
• Connee t tne SSG to tne [ANT]
cathode of 018.
connector and set as :
l e vel : 32 uv- (-77 dBm)
Modulati on : QFF
METER 1 - Mode : FM
,
Front
S-meter
SI MAIN R43
SOUELCH
- [SOUELCH]
- a~
panel
centrot .
\
..
"':"":
. -
. -
•
\
-
saUElèH
2 - [SOUELCH] c ont rol: CW
59+4 0 dB R66
-
,
..
~~
•
NOTE : Aepeat steps 1 aod 2 (severat times).
NOISE
1
• Mode : FM
,
'
Front
S-meler
Squelch closes.
MAIN R51
SQUELCH
-(SOUEl CH]
'0
panel
control :
- f-
'/-
•
SOUELCH
NOISE 1 - Displayed Irequency: 26.0000 MHz MAI N Conneet t he
AdJust the maxim um MAIN
L1t
BLANKER -Mode : USB c scurcsccce to the
norse wave dlsplayed
- [NB' AFC] switch : OFF
cathode ot 04 7. on the oscmcsccce.
- Connecl the SSG to the
[ANl]
connec tor and set as :
Level
: 3.2 uv- ( -97 dBm)
Adel
Ihe lollowlng signa! lnto
the slgnal generator output.
J100
m sec;l
L
-U-
1
msec.
2
- [ NB ' AFC] switch : ON
The norse must ba
Verily
- Connect tne SSG to lhe [ANT]
btanked.
connector and set as :
Level : 0.1 uV' (- 87 dBm)
Add the same signa l above.
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