[Fox_Tango] Problem with FT-101EE

[Al - NW2M]

Unplug all of the boards and repeat your test.  Yes, this is a pain. 
But it will tell you if it is a board or the chassis itself.  If the 
problem still exists, then you have to start looking at the transformer, 
DC unit, etc.  Removing the boards will also remove the regulated power 
supply which can have faulty capacitors...  In fact, I would remove the 
regulator board first.  I cannot believe any other board can draw down 
the power supply.  Especially with the heaters off....  Then I would 
suspect the DC unit.

Again, just a suggestion-

73,  Al - NW2M
Keeper of the FT-101 web page



Mike wrote:

> Over the last 2 years I have bought a few of the FT-101 rigs to add to my
> 101 series collection. All have worked great untill last week when I bought
> this Yaesu FT-101EE. This rig looks like it just come out of the box. It
> does have a problem that I was not told about. When you turn the rig on all
> is ok. After about 5 mins of just warning up and not even turning on the
> Hearter switch you start to hear a popping sound through the speaker. Then
> it blows the 5 amp fuse at the back of the rig. I can replace it and then
> again after a few mins it blows the fuse agn. I have just left it unpluged
> from the wall for the time now.
> I thought I would just ask to see if any of you 101 owners might have an
> idea of what this problem might be or whats the cause of this ?
> I could swap it over and try it out on 12 volt power supply and see if it
> still blows the fuse but I first wanted alittle input from some of you 101
> owners.
> Thanks,
> Mike W4MJR
> 
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