Modifications for the ICOM - RogerK

1. Remove bottom cover.2. Locate R44 on Main Unit (100 ohm 1/4 watt resistor).3. Lift the side of R44 closest the front of the radio.4. Solder a piece of wire to the end of R44 that you lifted.5. Solder the other end of the wire to W54 which is located near the left side of IC15.This will supply a constant 8 Volts lly the 8 Volts is only present when in CW or SSB Modes, disabling the noise blanker in AM &FM modes.I have done all of the above mods to my own 725 and they work great! These mods should also work with the IC-726.I'll let everyone know for sure when I get one!Preamp and Noise Blanker Modifications courtesy of N1FCJP.S.If you have any good modifications for any radios, please pass them along to me. I am starting a database of modifications forvarious radios and I'm happy to pass along info to anyone who needs it.This modification is read 1461 times.top of page20-04-2000(IC-725) ICOM IC-725a post 1998 Version.[No D5 present on the PLL board]I asked for the last two years about the mods for the New IC-725A and to my suprise no one knew how to do it.Everyone mentioned the mods for the old 725a pre 1998. Well Icom changed the boards (or else there are 100's of clone or fakeicoms in Asia at the moment)Well the good news is that this new version of the 725a rig is in fact very simular to the IC-707 and the mods are exactly thesame.Simple remove the D12 located behind the front panel (yes on the front panel not the PLL board) and snip it (it is board montedso simply cut it in half) and you are in business.I would like to thank "artsci" for NOTHING, what a useless book, and even after Bill promised my money back it was never forthcomming.ICOM USA and ICOM Japan, when you change curcuit boards how about updating the manuals or even offer to help with a hint inwhere to get the new manuals, other than your dealer has it, and my dealer knows noThis modification is read 1295 times.top of page19-07-1998(IC-728) Modification Icom IC-728: General coverage TXOpen up the radio and locate the pll board, cut diode D5. The board should be located on the left hand side at the rear. Reset thecpu by pressing function and the mw button together while turning the radio off and on again. That will give you tx coveragefrom 1.6 to 30MHz!Please dont transmit outside of you allocated frequency band as this could result in you losing your licence! Good dx and havefun!G7NNT@GB7HUL.#15.GBR.EUMIKE, QTH HULL, NORTH EAST COAST, UKThis modification is read 566 times.top of page