[Elecraft] [BVARC] Elecraft P3 BLACK SCREEN but not DEAD

[Glenn Anderson]

I had the same problem with mine a while ago. The problem was with the
3.3-volr regulator module. It would get very hot and stop working after a
few minutes. There are two regulator modules on the input board. A 5-volt
and a 3.3-volt. They are the thick, black, edge-mounted things on the board.
If you have the same problem,  one of them will be very hot after a few
minutes. I replaced mine with a different type and it solved the issue. 

 

The module is a Rolm BP5220A and is no longer available. I did find one in
Taiwan, but I had already used a substitute.

 

Calls to the factory were of little help. 

 

Let me know if this is helpful.

 

Glenn WB5TUF

 

 

From: BVARC [mailto:bvarc-bounces at bvarc.org] On Behalf Of Allen Brier via
BVARC
Sent: Sunday, August 21, 2022 02:39
To: tdxs-list at tdxs.net; 'BRAZOS VALLEY AMATEUR RADIO CLUB'
<bvarc at bvarc.org>; ctdxcc at lists.kkn.net
Cc: n5xz at earthlink.net
Subject: [BVARC] Elecraft P3 BLACK SCREEN but not DEAD

 

My P3 screen has gone black. When I plug in the power, I still hear some
very quiet relay click.  Any quick ideas?

 

Full disclosure: I suffered a voltage spike some time ago which took out my
K3 some time ago (it is at Elecraft now); P3 still operated but the POWER
switch no longer worked, i.e. it was on all the time whenever power was
applied. (I am borrowing a K3 from a very, very good friend).

 

Does anyone work on P3's besides Elecraft?

 

 

Allen R. Brier N5XZ

1515 Windloch Lane

Richmond, TX 77406

713-705-4801