Icom Ic-910h Vhf/Uhf All Mode Tranciever Service Manual
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9 - 5 9-11 DISPLAY BOARD• TOP VIEW 8 5 1 4 18 16 918 16 918 16 9
9 - 6 • BOTTOM VIEW (DISPLAY BOARD) 14 5 81 5 4 8 1 4 8 5 1 100 81 80 51 50 31 30 1 1008180 51 50 31 301 816 9 GND 1 to MAIN SENSOR J4 4 A B +5V MSPO J14 7 1 to MAIN unit J1251, J1201 SSPO PHG 14V HV MIC MICE to FANGND J12 3 1 NC FANV +5V J2 1to VR-A board J1 5MSVR NC NCMAVRGND2 6 PHIN J5 SSPO MSPO GNDPHGGND2 6 1to JACK board J2 5 MIC J61 to MIC board J2 9 GND PTT MIUD NCMICE 2 10 AFOMSQLS+9VGND GND J919to PLL unit J1 1 20 2 PDAT 43DT 14UL GNDNC NC 14V +9V -5V PCK14DTPST443ULGNDBFST14VNCNCGND INTS J7129 TXS SCON MDAT +9V AVXL +5V PCK OPB1 12PS 12DS 12UL 12ST 12PV GND GNDINTMRXSMCKNCETONVOXLNCPDATFORLALCL43PV14PVPOWSTEMP 2 to MAIN unit J110130 CIV J8129 to MAIN unit J1151 230 DRES MIUD ATXS DOT KDS AGRM NSQM CTCM CENS SQLS SMLS MSC -5V GND GNDCIVEPTT1SENDDASHSBSYCENMSQLMSMLMBEEPAGRSNSQSCTCSOVDVTONE KST1 J351 to FUNC board J1 2 6 KST3 KRT1KST2KRT0GND GND J106 2 to RIT board J15 1 RIVR NC NCSFVR+5V +5V J11 1 5 to VR-B board J1SSVR NC NC 2 6SAVRGND
9 - 7 9-12 PA UNIT• TOP VIEW 14 8 5 1 3 6 4156 1 3 6 4 SPE SP J50 to MAIN unit J1853SPE SP J51 1 2 2 1 to SP1DRVI DRVI GND GND J93114 to DRV board GND GND DRVO DRVO J93214 to DRV board V-C1 GND V-C2 J651 1 V-A2 GND V-A1 J652 3 to VARISTOR-A boardto VARISTOR-C boardto VARISTOR-B board V-B1 GND V-B2 J653 1 3 13 14V UTU1 UPRI VUMS UATT POWS REF NC2 J39 1 15 2 16 to MAIN unit J1351 14V5VUT9VUR9VVUT9FOR43PVGND VUTP J504 15 1 16 2 to MAIN unit J130114PV VT9V UR9V UTU2 VPRI VTU2 ICH VTU1GNDHVVAT TGNDBANDICLNC1 from PLL unit J251144M 1Lo P251 to MAIN unit J651 V SUB P510 from PLL unit J551 430M 2LoP551 from PLL unit J421 430M 1LoP421 to MAIN unit J52 U MAINP1 to MAIN unit J652 U SUBP30 to MAIN unit J51 V MAIN P501 J2 UHF ANT J1 VHF ANT W305VCC GND VCC VCC GND GNDto UX-910 P300 F300 EP241
9 - 9 9-13 PLL UNIT• TOP VIEW R325 1 25 75 44 3412 22 1 8 16 9 33 23 1 1151 100 7626 50 1 4 8 5 1 25 75 33 23 1 11 22 12 34 4451 100 7626 50 1 4 8 5 14 85 GND PDAT 43DT 14UL NC NC NC 14V +9V -5V PCK14DTPST443ULNCBFST14VNCNCGND 1 2 J6011 19 2to DISPLAY board J9 to MAIN unit J501 to MAIN unit J1051 12 J701 to PA unit J503J120 GND BFOM BFOS GND 144M 1Lo P251 to PA unit J240 430M 1Lo P421 to PA unit J40 430M 2Lo P551 from UX-910 J312 30.2 P312
9 - 11 9-14 MAIN UNIT• TOP VIEW 1 18 16 9 1 10 20 18 16 9118 1 8 16 9 1 8 16 9 16 9 18 16 9 8 1 18 16 98 169 1 1 8 169 1 4 8 5 1 16 91 812 24 13 18 16 9 16 9 1 18 16 9 18 16 9 8 1 4 8 5 1 1 8 169714 8 8 1 18 16 918 16 91 12 REMOTE ACC1DATA1DATA2 KEYMAIN SPSUB SP MICE MIC J12011 2 to DISPLAY board J14 NC NC GND AFSJ1761 41 to UT-106 INTS TXS SCON MDAT 9V AVXL 5V PCK OPB1 12PS 12DS 12UL 12ST 12PV GND J1101 29 130 2 to DISPLAY board J7 GNDINTMRXSMCKNCETONVOXLNCPDATFORLALCL43PV14PVPOWSTEMP GND 14V NC DRES RXS 1FOR OPB1 PCK 12ST 12DS GND GND J2 2 241 25 to UX-910 IFMNC14VGNDTXS12TP12PV-5VPDAT12PS12ULGNDIFS NC1 ICL BAND GND VAT T HV GND VTU1 J130115 1 16 2 to PA unit J504 ICHVTU2VPRIUTU2VR9VVT9V14PVVUTP GND GND 5V MDTC INTM J1771 19210to UT-106 GNDDSPMMCKCDPSTDRES BFOS GNDJ1051 12 to PLL unit J701 MSPO SSPO PHG 14V HV J1251 5 1 to DISPLAY board J14SPE SP J1853 2 1to PA unit J50DSOM GND GND DSOS J1802 1 4to UT-106 AFM GND NC NC J1751 1 4to UT-106 BFOM GND J50112 to PLL unit J601 GND 43PV FOR VUT9 UR9V UT9V 5V 14V J135115 1 16 2 to PA unit J39 NC2REFPOWSUATTVUMSUPRIUTU114V SPST MCKC SPCE SPCH J180117 28to UT-102 MDTCBUSY5VGND CIV DRES MIUD AT X S DOT KDS AGRM NSQM CTCM CENS SQLS SMLS MSC-5V GND J1151 30 2 29 1to DISPLAY board J8 GNDCIVEPTT1SENDDASHSBSYCENMSOLMSMLMBEEPAGRSNSQSCTCSOVDVTONE GND GND 5V MDTC INTS J1781210 19to UT-106 GNDDSPSMCKCDPSTDRES from PA unit J30USUB P30from PA unit J510VSUB P510from PA unit J1UMAIN P1from PA unit J501VMAIN P501 MP1
9 - 12 • BOTTOM VIEW (MAIN UNIT) 14 85 1 71 1 12 81471 8147 1 5 106 1 5 10 148 17 71 8 8 14 7 114 61 1 4 8 5 24 13 7 14 8 14 85 148
9 - 13 9-15 UX-910 MAIN UNIT• TOP VIEW IFM 25J311 to IC-910 MAIN unit J2 NC 14V GND TXS 12TP 12PV-5V PDAT 12PS 12UL GND IFS 1 GND 2414VNCDRESRXS1FOROPB1PCK12ST12DS12REFGND 2 5 84 1 1 8 169 1 4 8 5 1 1 4811 5 106 48 5 5 4 8 5 1 100 76 26 5025 75 51 1 3 6 4 1 4 8 5 4 1 5 5 84 1 1 3 6 4 8 14 8 5 12 ANT to IC-910 PLL unit J541 SCLKP312 W31 Chassis J1to IC-910 PA unit