Thanks for this video. I picked up one of these IC-2100h radios used, in excellent condition for almost nothing. It started crackling really bad and I had a couple audio reports of noise and hum. Found your video and gave it a go. I used a UV light on the board and noticed that there was some sort of coating on the board and that much of it covered the copper rings as well. A little bit of DeoxIT D5 and a very light scraping of the copper rings and it cleaned up nicely. I picked up a bunch of #4 star washers and reinstalled the screws and it's working perfectly again. The UV light idea was a complete accident. I was trying to show my wife what I was trying to fix and it was the nearest flashlight laying around. Happy accident. Thanks again.
Thanks for the video. I'm about to buy a used 2100h from my local candy store and wanted to look on YT for any issues. Hope I don't have this one, but I'll know how to fix it. I sure appreciate you sharing wisdom-
Good analysis and fix. The two additional screws probably cut down on the microphonics as well, These are rugged, well made radios. Not flashy but a giid bargain that will serve one well over many years. Additional recommendation is to throttle back the high power output with the interior pot to about 80-90 percent of the max and save the finals.
Thanks for watching and taking the time to comment. I agree - this is a good rugged radio. My only complaint is that it seems more susceptible to intermod than my other Kenwood and Yaesu 2m mobiles.
thanks for sharing this valuable experience, I was wonder if you have any video which explains component and subsystems of a typical VHF radio transmitter
Whats the impedance on the internal speaker? As well as the output rated for? I recently acquired a used Icom IC-2100H to which the original owner had discarded the user manual.
I never compared them. But...the icoms squelch also doubles ad an rf gain so the higher you set it the more the rf gain gets turned up. I really don't care for that feature
Sir i have a problem in which fault is in control module could u please recommend what is the fault tx rx is ok fault in control module it some times receives and some times not plz do recommend the solution
Yeah - you probably could do that. Although, I wouldn't rough up the copper. I'd use a little no-clean flux just to get the solder to wet and then you'd have to make sure you got a good even flow to make sure the screw head makes contact at more than one point. Good idea!
a really small piece of scotch brite will brighten up the copper foil, but yea flux and enough heat will do the same. As u tighten up the screw, u squish the solder to a custom fit...and solder it really hard to oxidize, at least way harder than copper. Also thx for the 2100H bacic programming. I got a 2300H today and it helped alot. Im a brand new ham and just made my 1st contact 2nite. I held a novice class ticket back in 1985 but let it expire.
