Curtis 1238 AC controller repair.

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Curtis 1238 AC controller repair.

AMPhibian
I fried the communications port on my Curtis 1238 by hooking it up to a PC while charging at the same time with my Manzanita.  Dumb.  Anyway the controller still seems to work fine but it no longer sends data to the 840 display, I was wondering if anyone has poked around inside one of these controllers?  I don't even see an obvious way to get the cover off, other than prying.
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Re: Curtis 1238 AC controller repair.

Chris Zach
On 8/7/2011 1:03 PM, AMPhibian wrote:
> I fried the communications port on my Curtis 1238 by hooking it up to a PC
> while charging at the same time with my Manzanita.  Dumb.  Anyway the
> controller still seems to work fine but it no longer sends data to the 840
> display, I was wondering if anyone has poked around inside one of these
> controllers?  I don't even see an obvious way to get the cover off, other
> than prying.

Not sure, but if you do get it off, try replacing the MAX232 chip.
That's what usually blows, and it protects the 5 volt signal coming from
the CPU.

C

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Re: Curtis 1238 AC controller repair.

Cruisin
In reply to this post by AMPhibian
I may be able to help you with a repair cost through my contacts with Curtis. I will get back with you if I can get some type of a estimate. Probably wont be cheap though. cruisin@live.com
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Re: Curtis 1238 AC controller repair.

AMPhibian
Cruisin wrote
I may be able to help you with a repair cost through my contacts with Curtis. I will get back with you if I can get some type of a estimate. Probably wont be cheap though. cruisin@live.com
Yeah that's why I'm trying other options.  If I have to sink significant cash into it I'll just drive without the display, or take the opportunity to upgrade to the 650 amp unit, or maybe the higher voltage model if that comes out.
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Re: Curtis 1238 AC controller repair.

Erzuly40
In reply to this post by AMPhibian
Hola, Mi nombre es Jesus, y como puedes comprobar soy español.
Yo he tenido el mismo problema pero lo he arreglado.
Si todavia te interesa yo te puedo mandar lo informacion que necesitas.
Un saludo
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Re: Curtis 1238 AC controller repair.

AMPhibian
I would like any information you can provide.  I don't speak Spanish but Google Translate should allow me to understand you.

Me gustaría alguna información que puede proporcionar. Yo no hablo español, pero Google Translate debe permitir que te entiendo.

Erzuly40 wrote
Hola, Mi nombre es Jesus, y como puedes comprobar soy español.
Yo he tenido el mismo problema pero lo he arreglado.
Si todavia te interesa yo te puedo mandar lo informacion que necesitas.
Un saludo
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Re: Curtis 1238 AC controller repair.

Erzuly40
Ok estas son unas fotos del curtis abierto


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Re: Curtis 1238 AC controller repair.

Erzuly40
In reply to this post by AMPhibian
Ok estas son unas fotos del curtis abierto



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Re: Curtis 1238 AC controller repair.

AMPhibian
In reply to this post by Erzuly40
Great pictures.  Can you explain what screws need to be removed to take off the cover?

Excelentes fotografías. ¿Puede explicar qué tornillos hay que eliminar para quitar la tapa?
Erzuly40 wrote
Ok estas son unas fotos del curtis abierto
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Re: Curtis 1238 AC controller repair.

AMPhibian
I guess the large brass terminal rings unscrew and allow the cover to come off?

Supongo que la gran terminal de latón anillos desenroscar la tapa y deje que salga?

AMPhibian wrote
Great pictures.  Can you explain what screws need to be removed to take off the cover?

Excelentes fotografías. ¿Puede explicar qué tornillos hay que eliminar para quitar la tapa?
Erzuly40 wrote
Ok estas son unas fotos del curtis abierto
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Re: Curtis 1238 AC controller repair.

Erzuly40
In reply to this post by AMPhibian
Ok, Donde se conectan los cables de alimentacion y motor, son unas arandelas de presion.
debes levantarlas con una moldaza haciendo un pequeño giro de lado a lado
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Re: Curtis 1238 AC controller repair.

AMPhibian
Thank you.  In the large picture of the circuit board I see a yellow circle and a yellow box.  I think you wrote something inside the yellow box but it is too small for me to read.  Could you tell me what it says?

Gracias. En la imagen grande de la placa de circuito que veo un círculo amarillo y una caja amarilla. Yo creo que escribí algo en el interior del cuadro amarillo, pero es demasiado pequeño para mí leer. ¿Me podría decir lo que dice?
Erzuly40 wrote
Ok, Donde se conectan los cables de alimentacion y motor, son unas arandelas de presion.
debes levantarlas con una moldaza haciendo un pequeño giro de lado a lado
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Re: Curtis 1238 AC controller repair.

Erzuly40
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Re: Curtis 1238 AC controller repair.

AMPhibian
Was that the only bad part?

Fue que la única parte mala?

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Re: Curtis 1238 AC controller repair.

Erzuly40
en mi caso solo fue el transistor smd que te indico (15A)
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Re: Curtis 1238 AC controller repair.

AMPhibian
In reply to this post by Erzuly40
I have tried to unscrew the terminal pads but it is not working.  It will turn with great effort, but it is not coming loose.  I am using Vice Grips to clamp onto the terminal pad and turning counter clock wise.

He tratado de desenroscar las zapatas terminales, pero no está funcionando. Que a su vez, con gran esfuerzo, pero no es que se han desprendido. Estoy utilizando pinzamientos Vicepresidente de la abrazadera en la plataforma de la terminal y girar del reloj como al contrario.

I assume Vicepresidente is a mistranslation of Vice Grips, Joe Biden is not helping me take apart my controller ;)

Erzuly40 wrote
Ok, Donde se conectan los cables de alimentacion y motor, son unas arandelas de presion.
debes levantarlas con una moldaza haciendo un pequeño giro de lado a lado