[TenTec] Paragon display fault

[WA3FIY]

John,

The problem may be capacitor C9 on the display control board, the 
one immediately behind the display.  It is part of a voltage multiplier 
stage used to generate the high voltage needed by the display.

Replace that, and while you are at it, you might want to replace C8 
which is used in the reset circuit of the display controller.

A quick check would be to switch the display to low brightness.  Look 
for a 2 circuit jumper on a 4 pin jack in the middle of the display 
control board.  It will likely be positioned on the top two pins.   Move 
it to the bottom two pins.   IF the display works properly, you can be 
almost sure C9 is the culprit.

Good luck,

-Lee-

On 23 Nov 2001, at 20:27, John Garrett wrote:

> My Paragon has developed a fault with the display: all segments of all
> digits are alight! I can see a slight change of brilliance in the
> segments of the first few digits as I change the tuning. The receiver
> functions normally but I haven't tried the TX.)
> 
> If anybody could tell me what could cause this fault I'd be very
> grateful. My guess is that it must be on the Display Control Board as
> a fault on the display board itself would be more likely to affect
> only half of the display.
> 
> 73
> John, G3RHP
> antenna@btinternet.com
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