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Date Posted: 14:44:06 01/29/02 Tue
Author: Potter
Subject: Re: Potter's 5508w schematic
In reply to: sphinx 's message, "Re: Potter's 5508w schematic" on 19:54:38 01/28/02 Mon


>Hi again Potter,
>I am having a look at the wiring points and have a few
>more questions,The buy button, is it 1 wire that
>starts at pin7 on SX and goes to pin10 on pic and
>continues on to the buy button?
Yes - the connection the the SX was added as an input for the variable delay version of the code.
>also is the 75r res at input required for "W" decoder?
In my case it was not needed
>You also said to lift the bottom leg of R329 out of it's >socket, R329 is not 100r it's 220r and is next to R302
>(VR) However R309 is 100r and fits your diagram nicely.
Go for the 100ohm, there are some variances in the 5508W PCB's & overlays.
>There has been a few mods done to the decoders PCB,
>d301, w317, r336, r325 and a cap between pins 1 & 4 of
>4 pin header.Is this normal?
No - sounds like its already been attacked. The cap across the 4 pin header is an AGC fix which needs to be removed. Also try to undo any other existing mods before proceeding to eliminate unnecessary frustrations.

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