Programming Track
Your MTH Proto-Sound 3.0-equipped HO powered car does not
program well on Programming tracks due to the inclusion of super
capacitors utilized in the locomotive's electronic package. The super
capacitors provide backup power to the electronics, allowing the
locomotive to better negotiate track sections suffering from poor
electrical conductivity. This ensures that sounds continue to play, the
locomotive continues to move forward and lighting remains lit. During
power shutdowns, the super capacitors provide power to allow the
locomotive shutdown sounds to continue playing through their
conclusion. Unfortunately, the super capacitors require that operators
ONLY program engine CV’s using Programming on the Main (PoM).
DCC Bit Value Decoder
So, in the above example you simply add up the values in the “Decimal
Value” row – 128+64+0+16+8 +0+0+1 = 217. You would write 217 to
the CV you were altering.
The above applies to any CV. Also, if you have a CV that already has a
value assigned that you do not want to alter but need to make additions to
it, for example CV29, you would simply add the additional bits you
enabled to the existing value to obtain the new CV value.
For example, if you had a consist address (CV19) set to 5 and you wanted
to alter this to show an engine reversed in the consist you would need to
set bit 7 (decimal value = 128) for the engine you want to reverse. To do
this - take 128 (the new bit you want to set) + 5 (the existing bit that you
do not want to alter) = 133. You would then write a value of 133 to
CV19.
Decimal
Value
128
0
16
0
0
1
64
8
Example Value (bit 7 -> bit 0) 11011001
Binary
Example
1 (on)
Bit
(Decimal
Value)
7 (128)
5 (32)
4 (16)
3 (8)
2 (4)
1 (2)
0 (1)
6 (64)
1 (on)
1 (on)
1 (on)
1 (on)
1 (on)
0 (off)
0 (off)
0 (off)
M.T.H. HO Subway Car w/Proto-Sound 3.0
33
