[BC] Platinum-Z problem

[gRAdy Moates]

    I also had a similar problem in a less-than-2-year-
old box of the same type.  The "filter cards" were, at
that time, just surface-mount capacitors from each line
in the ribbon cable to the ground plane, and one of the
capacitors. . .

               . . . just . . .

                               shorted for no reason.

    This was back in 2001, I think, the box was still
in-warranty, and the tech people at Harris "knew about"
and "admitted" the problem, saving the cost of a field
tech visit.

    Seems Harris is sending out more field techs these
days.    hmmm-mm-mmm. . .

Grady

=============================================
Grady Moates, Owner
LOUD & Clean Broadcast Science
   Voice        800 946-7007
   Cell         617 610-7007
   Facsimile    800 529-5648
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      email        grady at loudandclean.com
=============================================

----- Original Message ----- 
From: "Lotus Engineering" <loteng at lvradio.com>

Last Month I spent three days with a Harris field tech replacing the filter 
boards that go on the surface that isolates the RF sections from the 
control sections in a Z20 (combined Z10's) that had a roof leak into it. 
These filter cards (About $100 each) are relatively easy to replace. They 
go between the ribbon cables above the shelf and the ribbon cables below 
the shelf.  They could cause intermittent problems based on the power level 
if they stopped filtering.  They were causing our diagnostics to be very 
strange and eventually intermittent shutdowns became a transmitter hard 
off. I had to call in the field rep because nothing I saw in the 
diagnostics was making sense.

Bill Croghan CPBE WBØKSW
Chief Engineer,
KOMP/KXPT/KENO/KBAD/KWWN/KWID
Lotus Broadcasting, Las Vegas, NV
Direct   702-315-3030
Cell 702-400-2558