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*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit.
RECEIVER ADJUSTMENTS (continued)
430 M PEAK
(MAIN BAND)
430 M PEAK
(SUB BAND)
430 M
TOTAL GAIN
(MAIN BAND)
NOISE
BLANKER
(MAIN BAND)
(SUB BAND)
1
1
1
2
1
2
3
4
• Display frequency: 435.0200 MHz
• Mode
: FM
• Connect a standard signal generator
to [UHF ANT] connector and set as:
Frequency : 435.0200 MHz
Level
: 1 µV* (–107 dBm)
Modulation : 1 kHz/±5.0 kHz Dev.
• Receiving
• Sub display freq. : 435.0200 MHz
• Mode
: FM
• Set an SSG as
:
Frequency : 435.0200 MHz
Level
: 1 µV* (–107 dBm)
Modulation : 1 kHz/±5.0 kHz Dev.
• Receiving
• Display frequency: 435.0200 MHz
• Mode
: USB
• Set an SSG as
:
Frequency : 435.0215 MHz
Level
: 1 mV* (–47 dBm)
Modulation : OFF
• Receiving
• Set an SSG as
:
Level
: OFF
• Receiving
• Display frequency: 145.9800 MHz
• Mode
: USB
• [NB]
: OFF
• Connect an SSG to [VHF ANT] con-
nector and set as :
Frequency : 145.98150 MHz
Level
: 5.6 µV* (–92 dBm)
Modulation : OFF
and apply following signal to [VHF
ANT] connector.
• Receiving
• [NB]
: ON
• Set an SSG as
:
Level
: 3.2 µV* (–97 dBm)
• Receiving
• Sub display freq. : 145.9800 MHz
• Mode
: USB
• [NB]
: OFF
• Set an SSG as
:
Level
: 5.6 µV* (–92 dBm)
• Receiving
• [NB]
: ON
• Set an SSG as
:
Level
: 3.2 µV* (–97 dBm)
• Receiving
MAIN
MAIN
Rear
panel
MAIN
100 msec.
1 msec.
5 - 6
ADJUSTMENT
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT
LOCATION
UNIT
ADJUST
Connect a digital
multimeter or oscillo-
scope to check point
CP851.
Connect a digital
multimeter or oscillo-
scope to check point
CP852.
Connect an AC milli-
volt meter to [EXT
SP] connector with
an 8
Ω
load.
Connect an oscillo-
scope to check point
CP101.
Connect an oscillo-
scope to check point
CP701.
Maximum voltage
Maximum voltage
1.0 V (0 dB)
100 mV (20 dB of AF
level difference as step
1.)
Maximum noise wave-
form
The noise must be
blanked.
Maximum noise wave-
form
The noise must be
blanked.
PA
PA
Front
panel
PA
MAIN
L22,
L23,
L282,
L283
L280,
L281
main [AF]
volume
R61
L102,
L103
Verify
L703,
L704
Verify
Содержание IC-910H
Страница 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 23 SCHEMATIC DIAGRAM 33 Nov 2008 ...
Страница 26: ...Nov 2008 25 DISPLAY UNIT TOP VIEW The combination of top side and bottom side of this ...
Страница 33: ...Nov 2008 32 MAIN UNIT BOT VIEW The combination of top side and bottom side of this ...
Страница 41: ...SERVICE MANUAL VHF UHF ALL MODE TRANSCEIVER i910H ...
Страница 118: ...9 2 BOTTOM VIEW RIT BOARD BOTTOM VIEW VR A BOARD BOTTOM VIEW VR B BOARD ...
Страница 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 ...
Страница 124: ...9 8 BOTTOM VIEW PA UNIT 1 3 4 6 1 3 4 6 ...
Страница 126: ...9 10 BOTTOM VIEW PLL UNIT R341 MP11 ...
Страница 130: ...9 14 BOTTOM VIEW UX 910 MAIN UNIT 1 4 8 5 ...
Страница 144: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13714HZ C1 2001 Icom Inc ...