IC-910H Service manual.pdf - N3UJJ

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INTRODUCTIONThis service manual describes the latest service informationfor the IC-910H VHF/UHF ALL MODE TRANSCEIVER at thetime of publication.DANGERNEVER connect the transceiver to an AC outlet or to a DCpower supply that uses more than 16 V. This will ruin thetransceiver.DO NOT expose the transceiver to rain, snow or any liquids.VERSION No.#02#04#06#07VERSIONEuropeAustraliaU.S.A.KoreaSYMBOLEURAUSUSA-1KORDO NOT reverse the polarities of the power supply whenconnecting the transceiver.DO NOT apply an RF signal of more than 20 dBm (100 mW)to the antenna connector. This could damage the transceiver’sfront end.To upgrade quality, any electrical or mechanical parts andinternal circuits are subject to change without notice orobligation.ORDERING PARTSBe sure to include the following four points when orderingreplacement parts:1. 10-digit order numbers2. Component part number and name3. Equipment model name and unit name4. Quantity required1110003140 IC LA1150N IC-910H MAIN UNIT 5 pieces8810005770 Screw BiH M3×8 ZK IC-910H Cover 10 piecesAddresses are provided on the inside back cover for yourconvenience.REPAIR NOTES1. Make sure a problem is internal before disassemblingthe transceiver.2. DO NOT open the transceiver until the transceiver isdisconnected from its power source.3. DO NOT force any of the variable components. Turnthem slowly and smoothly.4. DO NOT short any circuits or electronic parts. An insulatedtuning tool MUST be used for all adjustments.5. DO NOT keep power ON for a long time when the transceiveris defective.6. DO NOT transmit power into a signal generator or asweep generator.7. ALWAYS connect a 50 dB to 60 dB attenuator betweenthe transceiver and a deviation meter or spectrum analyzerwhen using such test equipment.8. READ the instructions of test equipment thoroughlybefore connecting equipment to the transceiver.From The N3UJJ.COM Document Library
TABLE OF CONTENTSSECTION 1SPECIFICATIONSSECTION 2 INSIDE VIEWS2 - 1 IC-910H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 12 - 2 UX-910 (OPTIONAL UNIT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3SECTION 3SECTION 4SECTION 5SECTION 6SECTION 7SECTION 8DISASSEMBLY AND OPTION INSTRUCTIONSCIRCUIT DESCRIPTIONADJUSTMENT PROCEDURESPARTS LISTMECHANICAL PARTSSEMI-CONDUCTOR INFORMATIONSECTION 9 BOARD LAYOUTS9 - 1 VR-A BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 19 - 2 VR-B BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 19 - 3 RIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 19 - 4 FUNC BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 39 - 5 MIC BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 39 - 6 JACK BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 39 - 7 DRV BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 39 - 8 VARISTOR-A BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 39 - 9 VARISTOR-B BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 39 - 10 VARISTOR-C BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 39 - 11 DISPLAY BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 59 - 12 PA UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 79 - 13 PLL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 99 - 14 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 119 - 15 UX-910 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 13SECTION 10 BLOCK DIAGRAMS10 - 1 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 110 - 2 PA AND PLL UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 210 - 3 FRONT UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 310 - 4 UX-910 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 3SECTION 11WIRING DIAGRAMSECTION 12 VOLTAGE DIAGRAMS12 - 1 FRONT UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 112 - 2 PLL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 212 - 3 PA UNIT (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 312 - 4 PA UNIT (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 412 - 5 MAIN UNIT (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 512 - 6 MAIN UNIT (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 612 - 7 MAIN UNIT (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 612 - 8 UX-910 MAIN UNIT (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 712 - 9 UX-910 MAIN UNIT (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 8From The N3UJJ.COM Document Library
Page 1: SERVICEMANUALVHF/UHF ALL MODE TRANS
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 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 50 and 51: [MAIN UNIT]REF ORDERNO. NO.DESCRIPT
Page 52 and 53:
[MAIN UNIT]REF ORDERNO. NO.DESCRIPT
Page 54 and 55:
[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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