Meter Adjustment - Icom IC-706 Service Manual

4-5 METER ADJUSTMENT (METER SET MODE)
ADJUSTMENT ADJUSTMENT CONDITIONS DISPLAY OPERATION
S-METER
1 • Enter Meter set mode: Push [F-2(RX)) to enter S-meter
.Turn power OFF.
USB
setting mode.
.Terminate the [REMOTE) jack with a
CC ,_
L'
P
_'L L
3.5(d) mm mini-plug.
Then advance to the following setting,
·While pushing [P.AMP/ATT] and
E
I:;:~
>::
or::·::
or push [UP)/[DN) to scroll the display.
[TUNE/CALL), turn power ON.
:·:IT
2 • Connect a standard signal generator to
gill
~:;O I
[:'I!
[:'1
Push [MENU) to set the "SO" level.
[ANT 1] and set as:
1!b••dB L_. L••• '.' L•• I••
Frequency: 14.15150 MHz
Level OFF
3 • Set the standard signal generator as:
IJII ~::;I:~
L..EI')FL
Push [MENU) to set the "S9" level.
Level 50 flV
*
(-73 dBm)
Modulation: OFF
4 • Set the standard signal generator as~
1.111 ·+·i::::i;:jc1f.:::
L.. E:
I.)
i:::
L.
Push [MENU] to set the "+60 dB"
Level 50 mV
*
(-13 dBm)
level.
·The display returns to the same as
that in step 1.
5 Push [MENU
(EXITJ)
to exit meter set mode, or advance to transmit meter setting from step 2 below.
TRANSMIT 1 • Enter Meter set mode: Push [F-3(TX)] to enter transmit meter
METERS
See "S-METER" item, step 1 above.
USB
setting mode.
CC ,_
L'P
_'L L
Then advance to the following setting,
,.
r'II..1
' 1 ' : :<
or push [UP)/[DN) to scroll the display.
I:
:·:!1
."1:.•
0 "1
..............................
Filter 2 • Connect an RF power meter to [ANT 1].
(:,()
F' I i...."r E:
F;:~ r:~:~l
Push [MENU(GOl) to make the
calibration calibration.
· Transceiver transmits for a while.
..............................
Power meter 3
• Transmit using an external PTT switch. ii.ll1 ~:=;E::
'r
')Oi..
. 1
Set to 90 W using main dial, then
push [MENU).
4 • Transmit using an external PIT switch. IJi
~::;E:"r ::::il;:j
i..,1
Set to 50 W using main dial, then
push [MENU).
5 • Connect the RF power meter to [ANT 2].
111m ~::;E~T' ·)i..
. 1
Set to 9 W using main dial, then push
• Transmit using an external PTT switch.
[MENU].
6 • Transmit using an external PTT switch.
mUll ~::;E:·T I:::';
I
Set to 5 W using main dial, then push
..... 1 ....
[MENU) .
..............................
ALC meter
7 • Connect the RF power meter to [ANT 1].
1(111 f~L.C: ~::;
-r
f~
F:
or
Push [MENU] to set ALC reference
• Wait for 2 sec. while receiving for the ALC
level.
function to engage.
· Transceiver transmits for a while.
8
• Connect an audio generator to [MIG]
II III
+.
:;;~
i;:J
(j
E: i....E:i.)E:L. Push [MENU] to set ALC zone level.
connector and set as:
1111••
1111
Level 100 mV /1.5 kHz
• Transmit using an external PIT switch.
..............................
SWR meter 9 • Connect a 50
Q
dummy load or power li.Jil ~::;
t.J
i:~~
1.
1....
C)
r~
[)
Push [MENU] to set SWR reference
meter to [ANT 1].
level.
· Transceiver transmits for a while.
9 • Connect a 100
Q
or 25
Q
dummy load to II! !!D ~:::; 1.1.l1:;~: ~~~
L..e)
rll)
Push [MENU] to set SWR 2 level.
[ANT 1].
1III••dB
· Transceiver transmits for a while.
· The display returns to the same as that in
step 1.
10 Push [F-1
(EXIT)]
to exit Meter set mode.
* This output level of the standard signal generator (SSG) is indicated as SSG's open circuit.
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