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Home » Ham Radio Mods » Icom Mods » ICOM R-7000 Receiver - Add a Cooling Fan
ICOM R-7000 Receiver - Add a Cooling Fan [message #75] Sat, 09 September 2006 20:43 Go to next message
root is currently offline  root
Messages: 208
Registered: December 2004
Senior Member
In my R-7000, adding a fan makes a big difference. I've had it on continuously for three days now, and it's still nice and cool. Turns out most of the heat comes from the transformer core in the AC supply. One of those 3-1/2" 12V DC fans fits just nicely - a pair of 1/4" standoffs screwed through two of the upper back panel ventilation slots holds it in place, the power leads snake through the lower ventilation slots, and some duct tape to form a gasket, and it pulls the hot air right out. If you pick the 12V off the power supply regulator board at W3 (orange lead), it will even work properly when you run the radio off 12 volts.

In order to blow hot air out, the fan must suck in cool air from somewhere. Users are advised to be on guard for dust being drawn into fan-equipped R-7000s.

by Brian Kantor, WB6CYT1
Re: ICOM R-7000 Receiver - Add a Cooling Fan [message #118 is a reply to message #75] Tue, 06 March 2007 22:21 Go to previous message
celes_maxtrac is currently offline  celes_maxtrac
Messages: 10
Registered: February 2007
Junior Member
Hi! I, myself, am a beginner. But I think it would do a lot help if you try to browse on some websites.

Motorola Maxtrac Series Parts List - Download the Maxtrac Series Parts List Catalog by Motorola
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