Trace C40 Controller

1 Posts
Mar 26, 2007 11:30 am
Trace C40 Controller

Where may I locate a schematic for a Trace C40 Controller?  I have one and it is malfunctioning.  Xantrax will not send a schematic.
578 Posts
Mar 26, 2007 01:13 pm
Re: Trace C40 Controller

look in data sheets section on our site


james - Alt-E staff

"Making Renewable Do-able"

Tel: 877.878.4060 x107  or +1.978.562.5858 x107
Fax: 877.242.6718  or +1.978.562.5854
1 Posts
May 15, 2007 10:13 am
Re: Trace C40 Controller

Hi Jack,

Did you find the schematic for the C40? I followed the links on the reply to your previous post but could not find the schematic!

I would be interested in schematic if you have managed to track one down. I got the same answer from Xantrax, although they did try ho help a little by giving me a brief pointer as to what a certain component did (Q16) which was shorted across base and collector.

I have now drawn out most of the board! Components and all (I hope) of the links on the back of the board and now have started on the front - what a task! I am blind, dizzy and wish that Xantrax could have made the job a little easier by just sending me a copy!!!!

Anyhow, if you have managed to find one, it will save me a few more hours of squinting, if not, do you want a copy of what I have done so far?

1 Posts
Aug 12, 2010 01:21 pm
Re: Trace C40 Controller

If you have a schematic for the Trace C40 controller I sure would appreciate a copy.  I would like to fix mine at the component level and Xantrex won't give out the schematic.
Thanks in advance.
Ken Rott
rfg57 @
Fax: 303-443-0740

PS: also need to repair Trace SW4520 Inverter.
28 Posts
Aug 12, 2010 01:40 pm
Re: Trace C40 Controller


I have a schematic for the C-Series charge controllers.  It's a hard copy, so I'll have to scan it so it can be emailed. You'll need a large format printer; at least 11 x 17. On letter size paper, it very hard to read.

I'm out of my lab until Monday.  If anyone wants one, respond on the forum or send an email to: info @ I can also offer a few troubleshooting tips. Be advised, however, that only those who have the skills and tools to work on PC boards should attempt repair.

Feb 2, 2011 04:46 pm
schematic for sw4024

does anyone has a schematic diagram for the boards for the trace sw4024? my unit was hit by lightning and i need to repair badly - no commercial power at home
1 Posts
Feb 23, 2011 04:42 pm
Re: Trace C40 Controller

I've come across two C40s that have the same problem. The PIC16C71 microcontroller has no  clock output pulse on pin #15. This pulse is required to generate the MOSFET driver voltage. If I hook a 9V battery to the MOSFET driver IC  supply pins, the charge controller works perfectly. But where do I get a programmed PIC16C71? Help any one?

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