Proto 2000 Wiring Diagram
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ffbrehm@...
New question. Does anyone have a wiring diagram for the later QSI decoders
in the Proto 2000 SW9/1200, SW8/990? Even a photo would help showing what wire connects to what. Purchased this decoder used and I'm trying to install it in a new model. I have nothing to compare it with. Thanks, Frank Brehm
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Ed.Sauers <dockside98@...>
Frank,
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what format is your decoder, A or U? can you post a picture of the decoder so we know what you have. If a U format how many wires on the non-MNRA end? Ed Sauers
On 7/26/2021 5:39 PM, ffbrehm@gmail.com wrote:
New question. Does anyone have a wiring diagram for the later QSI decoders
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Al
Frank,
Suggest that you contact the company at: www.qsindustries.com for the decoder manual or wiring diagram for the decoder that you have. Al Babinsky
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ffbrehm@...
Ed,
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It is a OEM decoder similar to the Atlas MP15. Photos in photo section under Proto SW9 Decoder. Thanks, Frank
-----Original Message-----
From: QSIndustries@groups.io <QSIndustries@groups.io> On Behalf Of Ed.Sauers Sent: Monday, July 26, 2021 3:29 PM To: QSIndustries@groups.io Subject: Re: [QSIndustries] Proto 2000 Wiring Diagram Frank, what format is your decoder, A or U? can you post a picture of the decoder so we know what you have. If a U format how many wires on the non-MNRA end? Ed Sauers On 7/26/2021 5:39 PM, ffbrehm@gmail.com wrote: New question. Does anyone have a wiring diagram for the later QSI
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ffbrehm@...
Hi Al,
From: QSIndustries@groups.io <QSIndustries@groups.io> On Behalf Of Al
Sent: Monday, July 26, 2021 4:10 PM To: QSIndustries@groups.io Subject: Re: [QSIndustries] Proto 2000 Wiring Diagram
Frank,
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citaro_o530
I uploaded a PDF in the files section showing some old decoder connections. See if any of the boards shown are similar to yours.
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ffbrehm@...
The only one similar is the MP15 board but there are differences which make me leery of wiring it as there are no pads for a backup light on the board I have so the light would have to be wired from one of the connectors. I have looked at every QSI wiring diagram I can find and nothing is close.
From: QSIndustries@groups.io <QSIndustries@groups.io> On Behalf Of citaro_o530 via groups.io
Sent: Tuesday, July 27, 2021 9:33 PM To: QSIndustries@groups.io Subject: Re: [QSIndustries] Proto 2000 Wiring Diagram
I uploaded a PDF in the files section showing some old decoder connections. See if any of the boards shown are similar to yours.
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peteski7
Frank,
Does your decoder look similar to this one?  Peteski
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ffbrehm@...
Hi Peteski Guess my previous replay didn't get out. Yes, that is exactly what it looks like. Frank
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peteski7
Frank,
this is an OEM version of QSI Revolution decoder made for Walthers. It was used in the N Scale 2-8-8-2 loco and also in some H0 locos. Where did you find that decoder? I could use couple more myself. Here is the pin-out. The unmarked pins on the lights (functions output) connector are likely electrically active. I suspect they contain connection to ground (common negative) and 2 more function outputs. I have not yet determined their functions. The headlight function outputs (F0F and F0R) have 1.5k ohm resistors on board (so LEDs can be connected directly).  Peteski
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ffbrehm@...
Peteski,
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peteski7
You're welcome Frank -- I'm glad I was able to help out.
Peteski
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