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ESU 58921 wiring

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  • Member since
    February 2001
  • From: Loveland, CO
  • 77 posts
ESU 58921 wiring
Posted by cgrubb80 on Monday, November 8, 2021 10:55 AM
Need some ESU help on my 58921 wiring in the headlights.  I am using the SMT LED.  It is my understanding that I don't need to use a resistor.  I soldered a test LED with the positive side going to the 1.5 volt output and the negative side to the headlight pad.  It seemed to work ok.  I then wited the two headlight LED in parallel and they are not working.
 
I tried using my volt meter to read the pads and not get 1.5 volts out of either headlight or rear light and nothing is working.  I don't have access to a programmer yet.  Not sure if this matters.
 
Any ideas to try.
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Posted by tstage on Monday, November 8, 2021 11:34 AM

I just checked the current Loksound 5 manual and the Direct decoders come with 2.2K resistors already installed on the board.

https://tstage9.wixsite.com/nyc-modeling

Time...It marches on...without ever turning around to see if anyone is even keeping in step.

  • Member since
    February 2001
  • From: Loveland, CO
  • 77 posts
Posted by cgrubb80 on Monday, November 8, 2021 12:19 PM

tstage

I just checked the current Loksound 5 manual and the Direct decoders come with 2.2K resistors already installed on the board.

 

Which common do I use?  

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Posted by tstage on Monday, November 8, 2021 1:05 PM

Download the LokSound 5 manual here and go to pg. 23.  The common (anode) tab is right next to the F0F (front headlight) tab.  Is that what you connected to?  There are also three other commons on the board; two on the bottom and one on the opposite end for the F0R (rear headlight).  You can use any of those or just connect it to the + side of the LED.

Tom

https://tstage9.wixsite.com/nyc-modeling

Time...It marches on...without ever turning around to see if anyone is even keeping in step.

  • Member since
    February 2001
  • From: Loveland, CO
  • 77 posts
Posted by cgrubb80 on Monday, November 8, 2021 1:55 PM

tstage

Download the LokSound 5 manual here and go to pg. 23.  The common (anode) tab is right next to the F0F (front headlight) tab.  Is that what you connected to?  There are also three other commons on the board; two on the bottom and one on the opposite end for the F0R (rear headlight).  You can use any of those or just connect it to the + side of the LED.

Tom

 

 

It's the one on page 24.  There are two U+ and two that are 1.5 or 5.0 volts.  This is my confusion 

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Posted by tstage on Monday, November 8, 2021 2:18 PM

For front headlights: Use the "Front light" tab (upper left) and either common (U+).  The two +1.5v/+5v tabs appear to be for 1.5V or 5.0V auxillary lighting.  You leave the "JPPWR" pads as is for 1.5V and short them for 5.0V.

Tom

https://tstage9.wixsite.com/nyc-modeling

Time...It marches on...without ever turning around to see if anyone is even keeping in step.

  • Member since
    February 2001
  • From: Loveland, CO
  • 77 posts
Posted by cgrubb80 on Monday, November 8, 2021 4:11 PM

I was thinking that two might have been used for auxiliary lighting but was not sure.  

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Posted by tstage on Monday, November 8, 2021 4:19 PM

AUX 1-8 are to the left of those pads.  Maybe it's just additional lighting pads?  I would stick with the front lighting pad and the common (+) for your headlights.

Tom

https://tstage9.wixsite.com/nyc-modeling

Time...It marches on...without ever turning around to see if anyone is even keeping in step.

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