IC-910H Service manual.pdf - N3UJJ

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• Opening the PA unit coverq Remove the top cover as shown in the diagram on p. 3-1.w Remove 8 screws and grounding plate from the PA unitcover.e Remove fastening tape from the inside power cable.r Slide the PA unit cover as shown below.grounding plate• FL-132/FL-133 CW NARROW FILTERq Remove the bottom cover as shown in the diagram onp. 3-1.• Remove the UX-910 if you have installed it. (p. 3-1)w Disconnect the connection cable connectors from J501and J1051 on the MAIN unit.e Remove 2 clips.t Install FL-132 or FL-133 to the specified position on theMAIN unit.WARNING!BE CAREFUL not to pinch your finger with the clip.r Remove 6 screws from the MAIN unit, then lift up theMAIN unit.FL-132(MAIN)FL-133(SUB)PLL unitJ501J1051y Solder then cut the leads, keeping 2–3 mm (1/8’’) of theleads from the bottom of the MAIN unit.u Return the MAIN unit and clips to their original positions.i Re-connect the connection cable connector to J501 andJ1051 on the MAIN unit.o Return the bottom cover to the original position.MAIN unit(MAIN)Clips(SUB)3 - 2From The N3UJJ.COM Document Library
• UT-102 VOICE SYNTHESIZER UNITq Remove the bottom cover as shown in the diagram onp. 3-1.• Remove the UX-910 if you have installed it. (p. 3-1)w Remove the protective paper attached to the bottom ofthe UT-102 to expose the adhesive strip.e Plug UT-102 into J1801 on the MAIN unit as shown in thediagram at right.r Return the bottom cover to its original position.J1801UT-102MAIN unit• UT-106 DSP UNITRECOMMENDATION:When installing only 1 DSP unit, you can install intoeither front or rear panel side. However, installing aDSP unit into the front panel side may be easier andalso safer.Installing 1st DSP unit (front panel side)q Remove the bottom cover as shown in the diagram onp. 3-1.• Remove the UX-910 if you have installed it. (p. 3-1)w Remove the shielding plate.e Remove the connection cable from J1751 on the MAINunit. Connect the cable into J1 on the UT-106.r Plug the connection cable (P1) from the UT-106 to J1751on the MAIN unit.t Plug the flat cable into J3 on the UT-106 and to J1771 onthe MAIN unit.• Take care of the conductor direction.• Attach the Velcro tape to the UT-106 and PLL unitshielding plate.y Return the shielding plate, top cover and bottom cover totheir original positions.Installing 2nd DSP unit (rear panel side)q Remove the top and bottom cover as shown in the diagramon p. 3-1.• Remove the UX-910 if you have installed it. (p. 3-1)w Remove the shielding plate.e Remove the connection cable from J1761 on the MAINunit. Connect the cable into J1 on the UT-106.The cable between J1221 on the MAIN and J1 on theDSP unit, must be set in the groove of the chassis (seediagram below).Otherwise, the cable may be damaged when returningthe shield plate to its original position.r Plug the connection cable (P1) from the UT-106 to J1761on the MAIN unit.t Plug the flat cable into J3 on the UT-106 and to J1781 onthe MAIN unit.• Take care of the conductor direction.• Attach the Velcro tape to the UT-106 and PLL unitshielding plate.y Return the shielding plate, top cover and bottom cover totheir original positions.Shielding platePLL unitSet cable into the groove.Shielding plateJ1UT-106J3J1J1771J1751P1PLL unitUT-106J3J1Take care of theconductor direction.MAIN unitJ1781P1Take care of theconductor direction.J1761MAIN unit3 - 3From The N3UJJ.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: SECTION 3DISASSEMBLY AND OPTION INS
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:
[PA UNIT]REF ORDERNO. NO.DESCRIPTIO
Page 62 and 63:
[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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IC-910H Service manual.pdf - N3UJJ

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