Q.
There is a problem regarding programming the TH150DP when installed
in a Atlas AEM7 locomotive. Why?
A.
The number board lights of the locomotive are connected directly
to the track. They are not in the decoder circuit and are not
under control of the decoder. This was a oversight on the part
of Atlas. The problem is the current draw of the bulbs interferes
with the programming operation on the programming track. The
programmer sees the constant current draw of the bulbs and cannot
differentiate between the bulb current and the decoder acknowledgment
current. It makes it impossible to read or write to the decoder
on the programming track. |
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Q.
What is the solution and how can I program the TH150DP?
A.
To do your initial programming of the decoder plug it into another
loco. Program the desired address, speed table, configuration,
etc., then plug it back in the AEM7. Future programming can be
done in ops mode on the main track. Programming on the main
is not affected by the number-board bulbs. You can use ops mode
programming at any time with the decoder installed in the AEM7.
The only CV that cannot be changed on the main track is CV1.
TCS decoders do allow programming of CV1 in ops mode but most
command stations do not allow it. Easy DCC is the only system
we are aware of that will allow it. |
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