Icom Ic-910h Vhf/Uhf All Mode Tranciever Service Manual
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Page 31
![Page 31
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit.
5 - 13
SOFTWARE ADJUSTMENT (continued)
ADJUSTMENT
ITEM (2)
S-METER
(MAIN BAND)
(SUB BAND)
ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION
• Enter software adjustment mode (Refer
page 5-12).
• Push [2] key to enter the S-meter adjust-
ment
• Connect an SSG to [VHF ANT] connector
and set as :
Frequency : 146.0200 MHz
Level : OFF
• Receiving
• Set an SSG as :
Frequency : 146.0200 MHz
Level : 3.2 µV* (–97 dBm)
•...](http://img.usermanuals.tech/thumb/2452/82257/w300_icom_ic910-vhf-uhf-tranciever_service-manual_d-30.png "Page 31
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit.
5 - 13
SOFTWARE ADJUSTMENT (continued)
ADJUSTMENT
ITEM (2)
S-METER
(MAIN BAND)
(SUB BAND)
ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION
• Enter software adjustment mode (Refer
page 5-12).
• Push [2] key to enter the S-meter adjust-
ment
• Connect an SSG to [VHF ANT] connector
and set as :
Frequency : 146.0200 MHz
Level : OFF
• Receiving
• Set an SSG as :
Frequency : 146.0200 MHz
Level : 3.2 µV* (–97 dBm)
•...")
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit. 5 - 13 SOFTWARE ADJUSTMENT (continued) ADJUSTMENT ITEM (2) S-METER (MAIN BAND) (SUB BAND) ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION • Enter software adjustment mode (Refer page 5-12). • Push [2] key to enter the S-meter adjust- ment • Connect an SSG to [VHF ANT] connector and set as : Frequency : 146.0200 MHz Level : OFF • Receiving • Set an SSG as : Frequency : 146.0200 MHz Level : 3.2 µV* (–97 dBm) •...
Page 32
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit. 5 - 14 SOFTWARE ADJUSTMENT (continued) S-METER (SUB BAND) ADJUSTMENT ITEM (3) NOISE SQL (MAIN BAND) (SUB BAND) ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION • Set an SSG as : Frequency : 146.0200 MHz Level : OFF • Receiving • Set an SSG as : Frequency : 146.0200 MHz Level : 3.2 µV* (–97 dBm) Modulation : OFF • Receiving • Set an SSG as : Frequency : 146.0200 MHz Level : 32 µV* (–77 dBm) • Receiving • Connect...
Page 33
![Page 33
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit.
5 - 15
SOFTWARE ADJUSTMENT (continued)
ADJUSTMENT
ITEM (4)
CENTER
(MAIN BAND)
ADJUSTMENT
ITEM (5)
FILTER
CALIBRATION
(MAIN BAND)
(SUB BAND)
ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION
• Connect an SSG to [VHF ANT] connector
and set as :
Frequency : 146.0200 MHz
Level : 5.6 µV* (–92 dBm)
Modulation : OFF
• Receiving
• Connect an SSG to [VHF ANT] connector
and set as :
Frequency : 146.0200 MHz
Level : 5.6 µV*...](http://img.usermanuals.tech/thumb/2452/82257/w300_icom_ic910-vhf-uhf-tranciever_service-manual_d-32.png "Page 33
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit.
5 - 15
SOFTWARE ADJUSTMENT (continued)
ADJUSTMENT
ITEM (4)
CENTER
(MAIN BAND)
ADJUSTMENT
ITEM (5)
FILTER
CALIBRATION
(MAIN BAND)
(SUB BAND)
ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION
• Connect an SSG to [VHF ANT] connector
and set as :
Frequency : 146.0200 MHz
Level : 5.6 µV* (–92 dBm)
Modulation : OFF
• Receiving
• Connect an SSG to [VHF ANT] connector
and set as :
Frequency : 146.0200 MHz
Level : 5.6 µV*...")
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit. 5 - 15 SOFTWARE ADJUSTMENT (continued) ADJUSTMENT ITEM (4) CENTER (MAIN BAND) ADJUSTMENT ITEM (5) FILTER CALIBRATION (MAIN BAND) (SUB BAND) ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION • Connect an SSG to [VHF ANT] connector and set as : Frequency : 146.0200 MHz Level : 5.6 µV* (–92 dBm) Modulation : OFF • Receiving • Connect an SSG to [VHF ANT] connector and set as : Frequency : 146.0200 MHz Level : 5.6 µV*...
Page 34
![Page 34
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit.
5 - 16
SOFTWARE ADJUSTMENT (continued)
ADJUSTMENT
ITEM (6)
RF PEAK
ADJUSTMENT
ITEM (7)
TX POWER/
METER
(for 144 M)
(for 1200 M)
ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION
• Enter software adjustment mode (Refer
page 5-12).
• Push [6] key to enter the RF peak adjust-
ment for TX.
• Connect an RF power meter to [VHF ANT]
connector.
• Connect an SSG to P501 on the PA unit
via the JIG cable (A) and set as:...](http://img.usermanuals.tech/thumb/2452/82257/w300_icom_ic910-vhf-uhf-tranciever_service-manual_d-33.png "Page 34
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit.
5 - 16
SOFTWARE ADJUSTMENT (continued)
ADJUSTMENT
ITEM (6)
RF PEAK
ADJUSTMENT
ITEM (7)
TX POWER/
METER
(for 144 M)
(for 1200 M)
ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION
• Enter software adjustment mode (Refer
page 5-12).
• Push [6] key to enter the RF peak adjust-
ment for TX.
• Connect an RF power meter to [VHF ANT]
connector.
• Connect an SSG to P501 on the PA unit
via the JIG cable (A) and set as:...")
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit. 5 - 16 SOFTWARE ADJUSTMENT (continued) ADJUSTMENT ITEM (6) RF PEAK ADJUSTMENT ITEM (7) TX POWER/ METER (for 144 M) (for 1200 M) ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION • Enter software adjustment mode (Refer page 5-12). • Push [6] key to enter the RF peak adjust- ment for TX. • Connect an RF power meter to [VHF ANT] connector. • Connect an SSG to P501 on the PA unit via the JIG cable (A) and set as:...
Page 35
![Page 35
5 - 17
SOFTWARE ADJUSTMENT (continued)
TX POWER/
METER
(for 430 M)
ADJUSTMENT
ITEM (8)
DEVIATION
ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION
• Connect an RF power meter to [UHF ANT]
connector.
• Enter software adjustment mode (Refer
page 5-12).
• Push [8] key to enter the deviation adjust-
ment.
• MIC gain : Center
• Connect an FM deviation meter to [VHF
ANT] connector through an attenuator and
set as:
HPF : OFF
LPF : 20 kHz
De-emphasis : OFF
Detector : (P–P)/2
• Connect an audio generator to [MIC]...](http://img.usermanuals.tech/thumb/2452/82257/w300_icom_ic910-vhf-uhf-tranciever_service-manual_d-34.png "Page 35
5 - 17
SOFTWARE ADJUSTMENT (continued)
TX POWER/
METER
(for 430 M)
ADJUSTMENT
ITEM (8)
DEVIATION
ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION
• Connect an RF power meter to [UHF ANT]
connector.
• Enter software adjustment mode (Refer
page 5-12).
• Push [8] key to enter the deviation adjust-
ment.
• MIC gain : Center
• Connect an FM deviation meter to [VHF
ANT] connector through an attenuator and
set as:
HPF : OFF
LPF : 20 kHz
De-emphasis : OFF
Detector : (P–P)/2
• Connect an audio generator to [MIC]...")
5 - 17 SOFTWARE ADJUSTMENT (continued) TX POWER/ METER (for 430 M) ADJUSTMENT ITEM (8) DEVIATION ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION • Connect an RF power meter to [UHF ANT] connector. • Enter software adjustment mode (Refer page 5-12). • Push [8] key to enter the deviation adjust- ment. • MIC gain : Center • Connect an FM deviation meter to [VHF ANT] connector through an attenuator and set as: HPF : OFF LPF : 20 kHz De-emphasis : OFF Detector : (P–P)/2 • Connect an audio generator to [MIC]...
Page 36
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit. 5 - 18 5-7 UX-910 ADJUSTMENTS 2ND LO LOCK VOLTAGE 1ST LO LOCK VOLTAGE RECEIVER GAIN ATT GAIN IDLING POWER BALLANCE TRANSMITTER GAIN ADJUSTMENT ADJUSTMENT ADJUSTMENT CONDITIONMEASUREMENT VALUEPOINT UNIT LOCATION UNIT ADJUST 1 1 2 1 1 1 1 2 3 4 1• Connect an optional UX-910 (1200 MHz band unit). • Display frequency: 1270.5000 MHz • Receiving • Display frequency: 1240.0000 MHz • Receiving • Display frequency:...
Page 37
5 - 19 CP501 1st LO lock voltage check point C332 Power ballance adjustment CP322 Idling check point CP321 Idling check point R13 Idling adjustment R67 APC adjustment R83 Transmitter gain adjustment R224 Receiver gain adjustment CP15 APC check point CP701 2nd LO lock voltage check point CP311 Receiver gain check point CP401 APC check point R61 APC adjustment R37 APC adjustment R288 Attenuator adjustment
Page 38
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit. 5 - 20 UX-910 ADJUSTMENTS (continued) APC (POWER SET) ADJUSTMENT ADJUSTMENT ADJUSTMENT CONDITIONMEASUREMENT VALUEPOINT UNIT LOCATION UNIT ADJUST 1 2 3 4 5• Display frequency: 1270.0000 MHz • Mode : CW • Connect an SSG to the check point CP311 and set as : Frequency : 10.8500 MHz • Transmitting • Transmitting • Transmitting • Transmitting • TransmittingRear panel MAIN (UX-910) Rear panel MAIN (UX-910) Connect an...
Page 39
5 - 21 R67 APC adjustment CP15 APC check point CP311 Pre-setting for APC adjustment CP401 APC check point R61 APC adjustment R37 APC adjustment
Page 40
![Page 40
[DISPLAY BOARD]
6-1 IC-910
[FRONT UNIT]
S.=Surface mount
W1 8900006700 CABLE OPC-645 (N:6 L:60)
W2 8900006700 CABLE OPC-645 (N:6 L:60)
W3 8900006700 CABLE OPC-645 (N:6 L:60)
W4 8900009240 CABLE OPC-909 (P=1 N=10 L=110)
W5 8900006700 CABLE OPC-645 (N:6 L:60)
W6 8900006700 CABLE OPC-645 (N:6 L:60)
EP1 6910012480 E.OTHER RMS20-250-201-1R
EP2 6450001230 E.OTHER HLJ0999-01-480
IC1 1140009671 S.IC M30622MAA-868FP
IC2 1130009970 S.IC SED1540F0A
IC3 1130009100 S.IC BU4052BCFV-E2
IC4 1130009100 S.IC...](http://img.usermanuals.tech/thumb/2452/82257/w300_icom_ic910-vhf-uhf-tranciever_service-manual_d-39.png "Page 40
[DISPLAY BOARD]
6-1 IC-910
[FRONT UNIT]
S.=Surface mount
W1 8900006700 CABLE OPC-645 (N:6 L:60)
W2 8900006700 CABLE OPC-645 (N:6 L:60)
W3 8900006700 CABLE OPC-645 (N:6 L:60)
W4 8900009240 CABLE OPC-909 (P=1 N=10 L=110)
W5 8900006700 CABLE OPC-645 (N:6 L:60)
W6 8900006700 CABLE OPC-645 (N:6 L:60)
EP1 6910012480 E.OTHER RMS20-250-201-1R
EP2 6450001230 E.OTHER HLJ0999-01-480
IC1 1140009671 S.IC M30622MAA-868FP
IC2 1130009970 S.IC SED1540F0A
IC3 1130009100 S.IC BU4052BCFV-E2
IC4 1130009100 S.IC...")
[DISPLAY BOARD] 6-1 IC-910 [FRONT UNIT] S.=Surface mount W1 8900006700 CABLE OPC-645 (N:6 L:60) W2 8900006700 CABLE OPC-645 (N:6 L:60) W3 8900006700 CABLE OPC-645 (N:6 L:60) W4 8900009240 CABLE OPC-909 (P=1 N=10 L=110) W5 8900006700 CABLE OPC-645 (N:6 L:60) W6 8900006700 CABLE OPC-645 (N:6 L:60) EP1 6910012480 E.OTHER RMS20-250-201-1R EP2 6450001230 E.OTHER HLJ0999-01-480 IC1 1140009671 S.IC M30622MAA-868FP IC2 1130009970 S.IC SED1540F0A IC3 1130009100 S.IC BU4052BCFV-E2 IC4 1130009100 S.IC...