IC-910H Service manual.pdf - N3UJJ

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SECTION 2INSIDE VIEWS2-1 IC-910H• MAIN AND PLL UNITS* Located under side of the pointMAIN unitCrystal band pass filter(FI151: FL-128)TX IF amplifier*(Q1: 3SK131)Crystal band pass filter(FI751: FL-129)FM IF IC(IC951: TA31136FN)D/A converter(IC1521: M62352GP)AF power amplifier(IC1852: LA4445)Analog master IC*(IC1701: µPC5023-077)FM IF IC(IC401: TA31136FN)PLL unitDDS gate array(IC331: SC-1246A)430 MHz band VCO circuitDDS IC(IC601: SC-1287)Driver IC(IC1: BU4094BCF)Reference oscillator(X512: CR-452 30.2 MHz)DDS gate array(IC131: SC-1246A)144 MHz band VCO circuitDDS IC(IC701: SC-1287)2 - 1From The N3UJJ.COM Document Library
• PA UNITTX/RX switching relay(RL700: AE5349)Pre-amplifier(Q507: 3SK177)RX balanced mixer(Q511, Q512: 2SK1740)145 MHz power amplifier(Q651, Q652: 2SC5152)TX balanced mixerQ501, Q502: 2SK302D502: 1SV286Varistor-A boardDRV boardPre-amplifier(Q260: 3SK177)RX balanced mixer(Q220, Q221: 2SC3356)Varistor-C boardVaristor-B board440 MHz power amplifier(Q151, Q152: 2SC3102)TX balanced mixer*(Q1, Q2: 2SK302)TX double balanced mixerD190: HSB88WSL190, L191: 617DB-1010Drive amplifier(Q131: SRFJ7044)* Located under side of the point2 - 2From The N3UJJ.COM Document Library
Page 1 and 2: SERVICEMANUALVHF/UHF ALL MODE TRANS
Page 3 and 4: TABLE OF CONTENTSSECTION 1SPECIFICA
Page 5: ■ RECEIVER• Receive system :VHF
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 32 and 33: SOFTWARE ADJUSTMENT (continued)ADJU
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 60 and 61:
Page 62 and 63:
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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IC-910H Service manual.pdf - N3UJJ

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