[1000mp] Display concerns

[Mort Arditti]

My 1000 MP has similar display characteristics, slow start.
Long time ago I looked at the schematic. If I am not mistaken, the supply
to the display module has a series NTC thermistor in series. As the 
thermistor
heats up, the resistance drops and the display gets brighter.
I will look at the schematic again to confirm that this is indeed the case.

Mort, KB6BSN


----- Original Message ----- 
From: "Joel Richey" <richey2 at mindspring.com>
To: <1000mp at mailman.qth.net>
Sent: Tuesday, January 31, 2006 10:49 AM
Subject: [1000mp] Display concerns


I have both a FT1000MP and a mark 5 Field, the Mp is not used too often and 
the longer it is off the longer it takes the display to light, sometimes 
over 1 minute, they use I believe, a DC- to DC converter and appanently the 
oscilator is slow to take off-30 volts I believe is the voltage thats 
required to illuminate the display, pain in the butt but it always lights.

Joe W2DBO
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