Modifications for the ICOM - RogerK

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05-06-1999(IC-2800) Icom IC-2800 Extended RX/TX ModDate: 16-07-2000 User comment From: José A. MarreroSubject: 2 more diodes installedSome versions comming with the diodes D59 and D60 installed and it´s necessary to cut it for free RX/TX ( plus the 4 diodesindicated for you )Date: 30-12-2001 User comment From: Roy RodgersSubject: Cloning softwareAfter performing this modification, the cloning software will not be compatible with the radio.I recommend that if you plan on programming via the cloning software, before the mod clone the radio, and then perform themod.I found out by calling icom, the mod turns the radio into the japanese version, and the software for that version is notavailable.This modification is read 3237 times.top of page17-07-1999(IC-2800) Icom IC-2800 Extended RX/TX Mod, Australian modelHi all you lucky IC-2800H Owners, I have owned mine for 4 months now and have just performed the expand RX/TX mods and itworks very well indeed.PLEASE NOTE: THE J.PEG PICTURES ATTACHED TO THIS FILE SHOW THE AUSTRALIAN MODEL RADIO, there are two diodes lessin the AUS MODEL than what is shown in the radio that is already circulating on the Internet.Remove the large single screw that holds the only cover on, be careful when lifting this cover off with a small bladed screwdriverbecause it is held quite tight with spring loaded contacts down both sides, once this is done turn radio so fan end is facing towardyou and locate CPU under tin shield at fan end and link W13 is to the right of CPU.The two J.PEG PICTURES should be easy to follow and you can zoom and print them using PAINTSHOP PRO or COMPUPIC.My radio will now RX 118 - 175320 - 530800 - 999TX 136 - 175400 - 479118 - 136 is AM RX ONLYI have not check its RX or POWER SPECS since I performed the mods but from the reports that I have had it would seem that itworks very well.Now after the mods are finished you have to reset the CPU in a different way to that described in the instruction manual, withthe radio OFF hold down the left and right BOTTOM or fourth menu buttons and turn the radio on, it should now be reset,expanded and ready to be programmed because all memory information will be erased.I take no responsibility for these modifications if you stuff up but if you use a good quality soldering station and are careful it is
not a hard mod to do,..........but my next project could be a different story I also own a new IC-Q7E HANDHELD and I am goingto have a go at modifying it as well, if that is successful also I will post that on the NET and WW PACKET with pictures.For those who maybe interested I use a SONY MAVICA FD71 digital camera .This information has been supplied byDavid Spicer, VK7ZDJ5a Helen Street,ULVERSTONE, 7315.
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Modifications for the ICOMcreated 2
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(IC-271)(IC-271)(IC-271)(IC-2710)(I
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(IC-475)(IC-475)(IC-475)(IC-475)(IC
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(IC-756pro) Expand tx-freqeuncy for
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(IC-W2E)(IC-W31)(IC-W31)(IC-W31)(IC
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2. After about 0.5 second, press st
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21-10-1999(AT-500) ICOM AT-500 Tune
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4. Program the radio to the local w
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19-07-1998(IC-03) ICOM 02/03/04 & V
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This modification is read 553 times
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6. Reinstall the RAM board into the
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27-10-1998(IC-1275) Power control m
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27-10-1998(IC-1275) Modification of
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●Connect the short plug end with
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This modification is read 1316 time
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50MHz to something like 204MHz cont
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26-07-2001(IC-207) Band Expansion f
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Page 37 and 38: Fig. 3: The circuit extract from IC
Page 39 and 40: 19-07-1998(IC-22) Icom IC22S Packet
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Page 43 and 44: More detailed:In the true spirit of
Page 45 and 46: 19-07-1998(IC-229) IC-229H Fix CPU/
Page 47 and 48: In addition, if you want to put an
Page 49 and 50: By diode:●●Remove D17 diode on
Page 51 and 52: 1. Remove diode D14 (if there is an
Page 53 and 54: cut... I'm guessing, but it could b
Page 55 and 56: 19-07-1998(IC-24) IC-24AT enabling
Page 57 and 58: 19-07-1998(IC-24) Tip to to functio
Page 59 and 60: This complete the mods done with su
Page 63 and 64: Comment:These TRX is accorded to my
Page 65 and 66: this mod of use as I have.Any comme
Page 67 and 68: other wires come in. Take the cable
Page 69 and 70: 17-11-2000(IC-2700) Enabling ICOM 2
Page 71 and 72: 19-07-1998(IC-271) IC-271 / 471 fue
Page 73 and 74: RAM card version B images:This modi
Page 75 and 76: 12-11-2000(IC-2710) Crossband Repea
Page 77 and 78: Note:From Bill K7RIEICOM has not tr
Page 79 and 80: 19-07-1998(IC-275) Improve the stab
Page 81 and 82: ●●●●●●●●●●remov
Page 83 and 84: Note: a strong signal will be serio
Page 85: 19-07-1998(IC-28) The long, noisy s
Page 89 and 90: 02-04-2000(IC-2800) IC-2800H cross
Page 91 and 92: 19-07-1998(IC-281) Extended Receive
Page 93 and 94: encased it in shrink-tube. The oper
Page 95 and 96: push buttonswitch ^ ^| |___________
Page 97 and 98: 19-07-1998(IC-2IA) IC-2IA lousey xm
Page 99 and 100: 1. Change to RECEIVER MODE (not rec
Page 101 and 102: 13.0V 5.0W12.0V 5.0W11.0V 5.0W10.0V
Page 105 and 106: MODIFICATION (Refer to figure 1.)1.
Page 107 and 108: Procedure1. Remove the covers from
Page 109 and 110: 19-07-1998(IC-3200) Fix for IC-3200
Page 111 and 112: 4. select a frequency of 150.000Mhz
Page 113 and 114: 19-07-1998(IC-3220) How to iface Ic
Page 115 and 116: Now power on and type in the freque
Page 117 and 118: One note on the above - the BNC con
Page 119 and 120: e shorted to ground and cause PLL u
Page 121 and 122: 19-07-1998(IC-451) IC-451 aus 9600F
Page 123 and 124: 3. If by accident you lose power to
Page 125 and 126: 19-07-1998(IC-475) IC-475 Freq. ste
Page 127 and 128: Problem:This is a general transceiv
Page 129 and 130: Note: a strong signal will be serio
Page 131 and 132: Das spart einen mords Haufen Arbeit
Page 133 and 134: Dieses ist mit dieser Schaltung als
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X . X . 5.0 KHz 1 0 1 0. . . . X .
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Remove the back cover. If you place
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27-10-1998(IC-575) SSB RF GainProbl
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26-06-2001(IC-575) Pass band Tuning
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The trimpot leads will need to bent
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19-07-1998(IC-706) Info/mods for IC
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¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦----------
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●●●●●●●●●●●
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From: gary@ke4zv.atl.ga.us (Gary Co
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Mehr Dynamik in der Modulation beko
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Operation:Be sure to read the manua
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Alternative zum modifizierten PC St
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●●●●●(Another receiver wi
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| IC31 uPD4094BG || |1 2 3 4 |5 6 7
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D116 and D118 are responsible for o
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Transmit power output after modific
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This information and photos was sup
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22-02-2002(IC-706MKII) IC-706MKIIG
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Delete cap. CT14 at pin 6 of IC3 on
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18-06-2000(IC-729) Using two Icom r
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19-07-1998(IC-735) IC-735 Remote Wo
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19-07-1998(IC-736) Icom IC-736 DDS/
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Also probably would apply to IC 735
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RAM card version B images:This modi
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John Schmitz NS8EAdditional informa
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13-01-2002(IC-746) Monitor Audio Ou
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19-07-1998(IC-751) IC-751 Bad Cap P
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inspect your job to be sure that th
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28-01-2002(IC-751) ICOM IC-751 Dual
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Step 8: Turn the radio off and inst
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To be neater you could remove the s
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[W804] | |Remove=>[W805] | CHIP |[W
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Date: 23-02-2002 User comment From:
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less.The second way to adjust the I
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23-11-2001(IC-756pro2) IC-756PRO2 T
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19-07-1998(IC-765) Icom IC-765 Pass
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19-07-1998(IC-775) New product info
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70% AM.My personal findings are tha
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11. Re-install board and all cables
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The Yaesu FT726R first appeared ten
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There seemed to be no way of changi
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Add a diode on the blank position b
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---- gar keine Diode ----Breitband
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To disable the x-band repeater just
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Well this should make things verry
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Set radio in VFO mode, and select f
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27-05-2001(IC-910) Expanded functio
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●●●350-470 MHz RX/TX800-950 M
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1. You're completely successful.2.
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●●●●●●●●●Für Han
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28-03-1999(IC-Q7) Modifying the ICO
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●●●●●●●●Desoldering
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You should now have the RF board co
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BOOT:Attenuator protecs strong sign
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1. Use an ohmmeter to determine whi
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2. Remove battery cover and battery
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Fig. 4. Receiving AO-40 (at MA=13)O
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This modification can also be found
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The Q and not Q outputs on this IC
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Date: 30-12-2001 User comment From:
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Removing 1F unit1. Pull the 2 knobs
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16-05-1999(IC-T8) Problem with the
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800 -
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Frequencyrange after modification:5
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Offset Freq: Hold [FUNC], Press [4]
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The Icom IC W21AT handi-talkie norm
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19-07-1998(IC-W2A) IC-W2A signal le
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19-07-1998(IC-W31) IC-W31E CROSS-BA
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15-10-2000(IC-W31) Cross Band Repea
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could always try it.Set VHF and UHF
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31-07-2001(IC-W32) Icom IC-W32A pro
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IC-4GAT - Turn the radio on, hold [
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IC-M9 - Hold [HI/LO] & [DW/SCAN] bu
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IC-275H 10IC-375A 12IC-471 22IC-475
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I have tested this mod with a ic-75
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How further up the hole is the bett
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Connect the NTC, FAN and power and
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5, 31, 48, and 79.4. Does the Prior
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19-07-1998(R-7000) Modify your ICOM
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1. C231 from 1000 pf to 68 pf.2. C2
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19-07-1998(R-71) Tricking the ICOM
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There are two wires which send logi
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A. Remove the top cover of the rece
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08-11-1998(R-7100) Modify your Icom
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17-03-2002(R-7100) Icom R7100 Discr
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23-08-1998(R-8500) Operating the Ic
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Modifications for the ICOM - RogerK

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