Note
: CV21 is ONLY used when you have some value other than 0 written to CV19.
If CV19 = 0 then the values of CV21, CV22, CV23, and CV24 are not used
3. Call up your Middle engine (address 2 in the example)
4. Since you want to have the Middle engine respond to F3 only then write a value of
4 (CV21, bit 2 = ON)
5. Call up your Rear engine (address 3 in the example)
6. Since you want to have the Rear engine respond to the Start-Up/Shut Down (F3)
and Rear Coupler (F8) functions you want to write a value of 132 to CV21
Your engines are now set up according to the example above.
You will note that there is no F0 in CV21. This is because that function (FL) is
controlled by CV22. Please refer to the Advanced Consisting section for more
information regarding Cv22.
Programming Track
Your MTH Proto-Sound 3.0-equipped HO locomotive 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
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)
37
M.T.H. HO 2-8-8-4 Yellowstone Steam Engine
