IC-910H Service manual.pdf - N3UJJ

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SOFTWARE ADJUSTMENT (continued)ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATIONS-METER(SUB BAND)10• Set an SSG as :Frequency : 146.0200 MHzLevel : OFF• ReceivingSUBFMPush [RIT] key to store the “S0” levelinto memory, and to step next.11• Set an SSG as :Frequency : 146.0200 MHzLevel : 3.2 µV* (–97 dBm)Modulation : OFF• ReceivingSUBFMPush [RIT] key to store the “S9” levelinto memory, and to step next.12• Set an SSG as :Frequency : 146.0200 MHzLevel : 32 µV* (–77 dBm)• ReceivingSUBFMPush [RIT] key to store the “S9+60”level into memory. Then the displaychange to the noise SQL adjustment.ADJUSTMENTITEM (3)NOISE SQL(MAIN BAND)1• Connect an SSG to [VHF ANT] connectorand set as :Frequency : 146.0200 MHzLevel : 0.063 µV* (–131 dBm)Modulation : OFF• ReceivingFMPush [RIT] key to store the noisesquelch thresh-hold level for FMmode into memory, and to step next.2• Set an SSG as :Frequency : 146.0200 MHzLevel : 0.2 µV* (–121 dBm)• ReceivingFMPush [RIT] key to store the noisesquelch tight level for FM mode intomemory, and to step next.3• Set an SSG as :Frequency : 146.0200 MHzLevel : 0.063 µV* (–131 dBm)• ReceivingFMNPush [RIT] key to store the noisesquelch thresh-hold level for FM narrowmode into memory, and to stepnext.4• Set an SSG as :Frequency : 146.0200 MHzLevel : 0.2 µV* (–121 dBm)• ReceivingFMNPush [RIT] key to store the noisesquelch tight level for FM narrowmode into memory, and to step next.(SUB BAND)5• Set an SSG as :Frequency : 146.0200 MHzLevel : 0.063 µV* (–131 dBm)• ReceivingSUBFMPush [RIT] key to store the noisesquelch thresh level for FM modeinto memory, and to step next.6• Set an SSG as :Frequency : 146.0200 MHzLevel : 0.2 µV* (–121 dBm)• ReceivingSUBFMPush [RIT] key to store the noisesquelch tight level for FM mode intomemory, and to step next.7• Set an SSG as :Frequency : 146.0200 MHzLevel : 0.063 µV* (–131 dBm)• ReceivingSUBFMNPush [RIT] key to store the noisesquelch threshhold level for FM narrowmode into memory, and to stepnext.8 • Set an SSG as :Frequency : 146.0200 MHzLevel : 0.2 µV* (–121 dBm)• ReceivingSUB FMN*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit.Push [RIT] key to store the noisesquelch tight level for FM narrowmode into memory. Then the displaychange to the AFC center adjustment.5 - 14From The <strong>N3UJJ</strong>.COM Document Library
SOFTWARE ADJUSTMENT (continued)ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATIONADJUSTMENTITEM (4)CENTER(MAIN BAND)1• Connect an SSG to [VHF ANT] connectorand set as :Frequency : 146.0200 MHzLevel : 5.6 µV* (–92 dBm)Modulation : OFF• ReceivingFMPush [RIT] key to store the AFC centerfor FM mode into memory, and tostep next.2FMNPush [RIT] key to store the AFC centerfor FM narrow mode into memory,and to step next.3SUBFMPush [RIT] key to store the AFC centerfor FM mode into memory, and tostep next.4SUBFMNPush [RIT] key to store the AFC centerfor FM narrow mode into memory.Then the display change to the filtercalibration adjustment.ADJUSTMENTITEM (5)FILTERCALIBRATION(MAIN BAND)1• Connect an SSG to [VHF ANT] connectorand set as :Frequency : 146.0200 MHzLevel : 5.6 µV* (–92 dBm)Modulation : OFF• ReceivingUSBPush [RIT] key to make the calibration,and to step next.(SUB BAND)2SUBUSBPush [RIT] key to make the calibration.Then push [ENT] key to returnthe selection item screen.*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit.5 - 15From The <strong>N3UJJ</strong>.COM Document Library
Page 1 and 2: SERVICEMANUALVHF/UHF ALL MODE TRANS
Page 3 and 4: TABLE OF CONTENTSSECTION 1SPECIFICA
Page 5 and 6: ■ RECEIVER• Receive system :VHF
Page 7 and 8: • PA UNITTX/RX switching relay(RL
Page 9 and 10: SECTION 3DISASSEMBLY AND OPTION INS
Page 11 and 12: • UT-102 VOICE SYNTHESIZER UNITq
Page 14 and 15: 4-1-6 10 MHz IF CIRCUIT (MAIN UNIT)
Page 16 and 17: While in SSB mode, the amplified si
Page 18 and 19: The passed signals are then applied
Page 20 and 21: 5-2 PLL ADJUSTMENTSADJUSTMENT30.2 M
Page 22 and 23: 5-4 RECEIVER ADJUSTMENTSReceiver ad
Page 24 and 25: RECEIVER ADJUSTMENTS (continued)ADJ
Page 26 and 27: 5-5 TRANSMITTER ADJUSTMENTSADJUSTME
Page 28 and 29: TRANSMITTER ADJUSTMENTS (continued)
Page 30 and 31: 5-6 SOFTWARE ADJUSTMENTADJUSTMENT A
Page 34 and 35: SOFTWARE ADJUSTMENT (continued)ADJU
Page 36 and 37: 5-7 UX-910 ADJUSTMENTSADJUSTMENT2ND
Page 38 and 39: UX-910 ADJUSTMENTS (continued)ADJUS
Page 40 and 41: SECTION 6PARTS LIST6-1 IC-910[FRONT
Page 42 and 43: [DISPLAY BOARD]REFNO.ORDERNO.DESCRI
Page 44 and 45: [PLL UNIT]REF ORDERNO. NO.DESCRIPTI
Page 46 and 47: [PLL UNIT]REF ORDERNO. NO.DESCRIPTI
Page 48 and 49: [MAIN UNIT]REF ORDERNO. NO.DESCRIPT
Page 56 and 57: [PA UNIT]REFNO.ORDERNO.DESCRIPTIONI
Page 58 and 59: [PA UNIT]REF ORDERNO. NO.DESCRIPTIO
Page 64 and 65: 6-2 UX-910[MAIN UNIT]REFNO.ORDERNO.
Page 66 and 67: [MAIN UNIT] — UX-910REF ORDERNO.
Page 68 and 69: [MAIN UNIT] — UX-910REF ORDERNO.
Page 70 and 71: SECTION 7MECHANICAL PARTS[FRONT UNI
Page 72 and 73: MP34 (CH)MP34 (CH)MP12 (CH)MP1851 (
Page 74 and 75: SECTION 8SEMI-CONDUCTOR INFORMATION
Page 76 and 77: • DIODES1SS301 1SS355 1SS375-TL 1
Page 78 and 79: • BOTTOM VIEW (RIT BOARD)• BOTT
Page 80 and 81: • BOTTOM VIEW (VARISTOR-A BOARD)
Page 82 and 83:
• BOTTOM VIEW (DISPLAY BOARD)J10
Page 84 and 85:
• BOTTOM VIEW (PA UNIT)64133 416F
Page 86 and 87:
• BOTTOM VIEW (PLL UNIT)R341MP11F
Page 88 and 89:
6105171• BOTTOM VIEW (MAIN UNIT)6
Page 90 and 91:
• BOTTOM VIEW (UX-910 MAIN UNIT)0
Page 92 and 93:
10-2 PA AND PLL UNITStoMAINUNITGHVR
Page 94 and 95:
11 - 1SECTION 11WIRING DIAGRAM1 2 J
Page 96 and 97:
12-2 PLL UNITto DISPLAYboard J9CP7L
Page 98 and 99:
12-4 PA UNIT (2)toUX-910W305P1to MA
Page 100 and 101:
12-6 MAIN UNIT (2)12-7 MAIN UNIT (3
Page 102 and 103:
12 - 812-9 UX-910 MAIN UNIT (2)CHAS
Page 104:
lcom Inc.1-1-32, Kamiminami, Hirano
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