LGB 21510 Diesel DCC conversion

dalkhaw

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I have just fitted a Zimo MX 696 on to my diesel. The sound and motor works well. But how do I connect power to the 5V bulbs? Attached is a photo of the current circuit board for front lights. The pcb has a BD244C transistor with 5V output. Can I just connect the brown and white wire to the output of the decoder? Thank you.
 

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I have just fitted a Zimo MX 696 on to my diesel. The sound and motor works well. But how do I connect power to the 5V bulbs? Attached is a photo of the current circuit board for front lights. The pcb has a BD244C transistor with 5V output. Can I just connect the brown and white wire to the output of the decoder? Thank you.
You may also need to update the Zimo output for lights to 5v as the chips normally output track voltage. For Massoth chips there is a warning about this in the manual, likely the same with a Zimo. As for the lights, you need to understand what Gr/Br and Sw do. I think it may be lights with sw being the common, use a battery to test this out. Then you can connect to the Front/Rear/Common on the chip after you have updated the relevant CV.
 
Some of my LGB locos supplied 6 volts to the '5' volt bulbs.

The Zimo decoder (MX696) Some versions do have voltage control of the function keys. CV 60 can dim cv 1-6 plus head; tail light. There is another CV for not activating individual cv settings. 5 volts is great for Steam engines, 5.5 better for diesel. So, I tie my lights to 10 volts and then activate 40 percent dimming. When dimming on track power direct to lights, be careful as different track power sources will give different drops due to this is a fraction, not an absolute number and only a problem if you use the engine on a different power source like visiting a friends layout.
 
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