*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit.
5 - 12
5-6 SOFTWARE ADJUSTMENT
ENTERING
SOFTWARE
ADJUSTMENT
ADJUSTMENT
ITEM (0)
VOLUME
CENTER
PLL UNLOCK
ADJUSTMENT
ITEM (1)
TUNED BPF
(for 144 M)
(for 430 M)
ADJUSTMENT
ADJUSTMENT CONDITION
DISPLAY
OPERATION
• Enter software adjustment mode:
1
Turn power OFF.
2
Terminate the [REMOTE] jack with a
3.5(d) mm mini-plug.
3
While pushing [RIT] and [SATELLITE]
keys, turn power ON.
• Push [0] to enter the volume center set-
ting.
• Set the [RIT] and [SHIFT] controls to cen-
ter.
• Wait for a while.
• Push [1] to enter the receiver adjustment.
• Connect a standard signal generator to
[VHF ANT] connector and set as:
Frequency
: 136.02150 MHz
Level
: 50 µV* (–73 dBm)
Modulation
: OFF
• Receiving
• Set an SSG as
:
Frequency
: 146.02150 MHz
Level
: 50 µV* (–73 dBm)
• Receiving
• Set an SSG as
:
Frequency
: 146.02150 MHz
Level
: 50 µV* (–73 dBm)
• Receiving
• Set an SSG as
:
Frequency
: 420.02150 MHz
Level
: 50 µV* (–73 dBm)
• Receiving
• Connect an SSG to [UHF ANT] connector
and set as
:
Frequency
: 440.02150 MHz
Level
: 50 µV (–73 dBm)
• Receiving
• Set an SSG as
:
Frequency
: 479.98150 MHz
Level
: 50 µV* (–73 dBm)
• Receiving
1
1
1
2
1
2
3
4
5
6
The display shows the
selection
item scleen
for the adjustment
mode, push [0]–[9] key to select
adjustment item. Once enterring
adjustment mode, use [UP]/[DOWN]
key to skip/back items, or [ENT] to
return the
selection item screen
.
Push [RIT] key to set the volume
center positions, and to step next.
Verify the unlock detection for VHF
by blinking the frequency on the dis-
play, then push [RIT] key to step
next.
Verify the unlock detection for UHF
by blinking the frequency on the dis-
play, then push [RIT] key to exit vol-
ume center setting to
selection item
screen
.
Push [RIT] key to tune the “144 tune
1”, and to step next.
Push [RIT] key to tune the “144 tune
2”, and to step next.
Push [RIT] key to tune the “144 tune
3”, and to step next.
Push [RIT] key to tune the “430 tune
1”, and to step next.
Push [RIT] key to tune the “430 tune
2”, and to step next.
Push [RIT] key to tune the “430 tune
3”.
Turn power OFF and ON to return
the normal operation mode. Then
start the receiver adjustments (page
5-3).
USB
USB
USB
USB
USB
USB
USB
USB
USB
USB
USB
USB
USB
USB
USB
USB
CAUTION:
NEVER
select ajustment items [6]–[9] key on the
selection item screen
while transceiver is connected to an SSG.
Because transceiver automatically transmits when transmit items [6]–[9] is selected.
Summary of Contents for IC-910H
Page 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 23 SCHEMATIC DIAGRAM 33 Nov 2008 ...
Page 26: ...Nov 2008 25 DISPLAY UNIT TOP VIEW The combination of top side and bottom side of this ...
Page 33: ...Nov 2008 32 MAIN UNIT BOT VIEW The combination of top side and bottom side of this ...
Page 41: ...SERVICE MANUAL VHF UHF ALL MODE TRANSCEIVER i910H ...
Page 118: ...9 2 BOTTOM VIEW RIT BOARD BOTTOM VIEW VR A BOARD BOTTOM VIEW VR B BOARD ...
Page 121: ...9 5 9 11 DISPLAY BOARD TOP VIEW 8 5 1 4 1 8 16 9 1 8 16 9 1 8 16 9 ...
Page 124: ...9 8 BOTTOM VIEW PA UNIT 1 3 4 6 1 3 4 6 ...
Page 126: ...9 10 BOTTOM VIEW PLL UNIT R341 MP11 ...
Page 130: ...9 14 BOTTOM VIEW UX 910 MAIN UNIT 1 4 8 5 ...
Page 144: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13714HZ C1 2001 Icom Inc ...