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Post by Adam on Mar 18, 2024 15:34:21 GMT
Updated thread title based on what appears to be a finding that this is a PS2 board.I need some guidance and tips from the OGF brain trust. For my birthday I ordered and received an MTH 30-1149 PRR 6200 S2 Turbine Steam (engine only). These were delivered in the early 2000s (was in the 1999 catalog). It doesn't have a battery, but does seem to have some sort of board for sound. It runs great but needs some cosmetic and basic maintenance TLC. That is all wall and good, no worries there. For the tender I was planning to put together a basic tender from parts I had from a couple of old post war engines (aka, my junk box). The engine won't have sound and I thought I would be OK with that. Of course, I can't leave well enough alone and feel like I can do better. I would like to find a low cost/easy path to a tender that can add the sound. As you can see it seems that this engine has the QSI sound board in it (is that the right assumption?). The way I see it, I have 2 options. 1. Find the schematics for the QSI board and see what it would take to build the electronics to add sound to the tender. I don't care if I adhere to the MTH connector or not. Does anyone know where I can find the schematics? 2. Find a PS1 tender that can be used (even if it requires repair). Would any PS1 tender work or do I need to look for something specific? Does anyone have one they want to sell (not much on ebay right now).Any guidance, ideas or tips would be helpful. Worst case scenario I go with no sound, but I don't know how to leave well enough alone.   
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Post by harborbelt70 on Mar 18, 2024 15:54:16 GMT
Manual You’ve probably seen this already but the manual and associated page on the MTH website refer to this model being issued in 1999 with QSI sounds and a DRU. The speaker and a manual volume knob would have been in the tender and possibly a board as well. This model pre-dates anything I have ever got from MTH so I can’t help more at this stage.
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Post by Adam on Mar 18, 2024 15:56:18 GMT
Manual You’ve probably seen this already but the manual and associated page on the MTH website refer to this model being issued in 1999 with QSI sounds and a DRU. The speaker and a manual volume knob would have been in the tender and possibly a board as well. This model pre-dates anything I have ever got from MTH so I can’t help more at this stage. Thanks. for some reason I couldn't find this manual. Apparently, the battery would have been in the tender as well.
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Post by Adam on Mar 18, 2024 16:33:12 GMT
I think I found the wiring diagram for the QSI board. Seems straight forward to add a speaker and the batter (I will order a BCR). This diagram is for a different type of engine but they all should be about the same.  |
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Post by harborbelt70 on Mar 18, 2024 16:43:09 GMT
Manual You’ve probably seen this already but the manual and associated page on the MTH website refer to this model being issued in 1999 with QSI sounds and a DRU. The speaker and a manual volume knob would have been in the tender and possibly a board as well. This model pre-dates anything I have ever got from MTH so I can’t help more at this stage. Thanks. for some reason I couldn't find this manual. Apparently, the battery would have been in the tender as well.
www.mthpartsandsales.com/shop/lists/200?type=lists
I don’t see anything with a sound chip on the loco board you picture so the tether might have connected it to a separate board in the tender. Not sure if this list is up to date but a lot of PS1 parts don’t seem to be available from MTH.
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Post by Adam on Mar 18, 2024 17:03:40 GMT
Well, now I don't know what I have but I am leaning toward this being a PS2 board as it doesn't look like the QSI boards which all seem to say QSI. The connector has more pins (two riws instead of one) and matches the pins on my one and only full working PS2 steamer.   |
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Post by Adam on Mar 18, 2024 17:07:53 GMT
Just found a PS2 Wiring Diagram and it matches. Now, does this board still work is the real question.
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Post by harborbelt70 on Mar 18, 2024 17:14:49 GMT
Just found a PS2 Wiring Diagram and it matches. Now, does this board still work is the real question.
 
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Post by healey36 on Mar 18, 2024 17:17:10 GMT
Hmmm...does this loco have Protosound or Loco-Sound? I have a RailKing L-1 Mikado from around the same time and it has Loco-Sound, a sort of dumbed-down version of PS (much simpler electronics). I've never had it apart, so I'm not sure what it looks like on the inside. It does have a tether, however, and I believe the sound board/speaker is all in the tender.
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Post by Adam on Mar 18, 2024 17:33:26 GMT
The PS2 diagram I found seems to match the board exactly, so this seems to be an early PS2 board which I do understand were problematic, so my hopes are not very high. I will need to do some experimentation to see if it works properly. This loco was advertised in the 1999 catalog, but the board says 2000 which I guess was when they started shipping PS2.
The loco does run conventionally which of course doesnt require the board.
If so, awesome, if not, then I go back to the original plan of a silent runner. Price was right so nothing lost and at least I will have a nice running S2 Turbine.
Adam
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Post by BobS2056 on Mar 18, 2024 18:36:45 GMT
I have a MTH Rail King #5446 Steam engine and tender (like new) w/PS1 #30-1138-1 from ABOUT 1998, has a 4 plug harness/connector for engine to tender, it has upper and lower circuit boards in the tender, all my electronics are in the tender with speaker, mine does not operate as it is locked in neutral, I purchased a new chip from MTH and have not had time yo install it yet to see if it fixed my problem, originally battery went dead a long time ago and now it is locked in neutral, and it may be if chip does not fix it I may need the upper circuit board in the tender. update will be coming.
If you need me to check or view anything from mine to help/assist you let me know.
Bob
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Post by Adam on Mar 18, 2024 18:53:50 GMT
I have a MTH Rail King #5446 Steam engine and tender (like new) w/PS1 #30-1138-1 from ABOUT 1998, has a 4 plug harness/connector for engine to tender, it has upper and lower circuit boards in the tender, all my electronics are in the tender with speaker, mine does not operate as it is locked in neutral, I purchased a new chip from MTH and have not had time yo install it yet to see if it fixed my problem, originally battery went dead a long time ago and now it is locked in neutral, and it may be if chip does not fix it I may need the upper circuit board in the tender. update will be coming. If you need me to check or view anything from mine to help/assist you let me know. Bob Ive got a couple of PS1 engines and the connector is the same as what you described. Thanks for confirming. This new-to-me engine has a 10 pin connector for the tender, so it is definitely an early PS2. I hope to do some experiments with it this evening to see if it still works. If so, it will be a bonus.
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Post by jimsandman on Mar 18, 2024 19:13:07 GMT
What you have there is a LocoSound engine. Uses the same connectors as the 5v Proto2 did. It should have a 8 ohm speaker in the tender, and no battery. Exact part# of the board you have: AE1160002 LOCOSOUND / STEAM / PROGRAMMED / BANTAM S-2 TURBINE  A 5v Proto 2 used a different tach reader, 16 ohm speaker, and has the battery. Jim |
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Post by superwarp1 on Mar 18, 2024 19:14:29 GMT
It's not PS2 if it's 2000 release. Doesn't even look like a PS1 board. I'm think it's a simple forward, neutral, and reverse board. If it was PS2, the electronics would be in the tender and be multiple board stacked. According to the the manual it's a Proto-Sound® DCRU® Reverse Unit
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Post by Adam on Mar 18, 2024 19:23:32 GMT
What you have there is a LocoSound engine. Uses the same connectors as the 5v Proto2 did. It should have a 8 ohm speaker in the tender, and no battery. Exact part# of the board you have: AE1160002 LOCOSOUND / STEAM / PROGRAMMED / BANTAM S-2 TURBINE A 5v Proto 2 used a different tach reader, 16 ohm speaker, and has the battery. Jim Well, that is something! Thank you! The pinouts seemed to look like PS2 but the timing of it felt wrong to me. Thank you for the great information! Mystery solved!!
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