[TenTec] How Much Damage From Reversed Polarity?

doc kd4e at arrl.net
Mon May 3 20:10:22 EDT 2004


My schedule (12+ hours days through Wed.) will keep
me from cracking the box to do a sight and smell
assessment of the potential damage.

I sure appreciate the helpful hints from so many and
will report back to the list what I discover later in
the week.

73, doc


Bert Braun, DD5XL wrote:
> doc wrote:
> 
>> In the process of momentarily relocating my Jupiter
>> to another room with a Windows PC (to load the updated
>> OS) I think I may have applied reverse voltage to the
>> power connector ... Arghhh!
> 
> 
>> Symptoms are no response when the power switch is
>> activated (the fuse is fine).
>>
>> Time to pack it and ship it to TenTec?  ;-(
> 
> 
> Wait!
> Let us try a more comprehensive diagnosis?
> Say, can you hear the power relay clicking when you try to switch on 
> your Jupiter?
> Regarding my circuit diagram of the 538 Jupiter, there is no reverse 
> polarized diode to protect the power input.
> But the mains switch triggers a relay via a switching transistor. Only 
> when this realy is activated, the main circuits are connected to the 
> mains power. So you have a good chance, that you only damaged this 
> switching circuit, not the main transceiver circuits.
> 
> 
> 73 de Bert, DD5XL
> 
> 
> -- 
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> 

-- 
Thanks! & 73, doc kd4e
West Central Florida
Drake, Heathkit, Kenwood, TenTec, Yaesu
Radio Life: http://www.gospelcom.net/twr/
Linux-Incompatible hardware is defective!
USA Pres. Election 2004: http://www.rnc.org/
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