PS/1 electronics wiring diagram

I know it's kind of sad, especially with the older OSI systems. But, I guess doing something like that takes a Mike Reagan to push it through. MTH has had quite a few pokers in the fire with the European, HO and Lionel Tin Plate product line to deal with.

Hopefully it will be something they can get around to in the near future.

Of course, we could take the MTH tech course and go to work for one of their service centers, I bet they have the schematics.

Well, that does little to solve my immediate problem.   I'm hoping someone here has some information on this board.

Have you tried The Scaled Tin Rail? Art undoubtedly has that information, but I don't know if he has it posted on the website or not. 

I haven't looked there, but I certainly will give it a try!

EDIT:  Looks like he wants to sell you stuff and repair it, don't see any technical details there.

I asked the Forum about PS1 wiring diagrams a couple of weeks ago and drew a blank as well.

MTH may not even have them any longer as PS2 has been out so long.  I never found diagram source for QSI boards ...

John,

You have mail.

Thanks Pappy, looking forward to the info.

Could you spare another copy ?

John, without looking through old paperwork, I can throw this out.  On the bottom board facing upward next to the relays is a 2 pin  yellow connector.  This runs LED markers.  On the bottom of the board facing downward  aft of the relays and facing down is a blue 2 pin connector.  That is for front directional lighting.  In some units with Mars lights  this was used to connect to another CV board and the headlight, Mars light and number boards came from that.  The bulb for forward lighting is 1.5  volts.  On the opposite side from the blue connector is a 2 pin green connector.  This was used for reverse lighting and sometimes to a CV board to power additional lights the locomotive might need.  The green output is also for a 1.5 volt bulb.  On the opposite end of the board from the relays is a 4 pin blue connector facing upward.  That operates front and rear couplers. 

Some of the larger steam locomotives had a CV or MUX board that connected to the rollers and operated marker lights, number board lights, mars lights (GS-4 and Berk) and headlight.  This board is worth its weight in gold while doing an upgrade.  It is used and an RF choke placed in line with the rollers. 

John,

Look at the bottom of this link to see if the QS-3000 User Manual has what you're looking for:

http://qsisolutions.com/downloads/index.html

Bob, they show the coupler connections, but nothing else.

Thanks for that, I'll save this and see how well it matches the boards.   I'll have to see if that's the board in the GS-4 that I have.

That will be what you have in the GS-4.  The top board is the C-5 board and the bottom is the P-4 board.

You mean you don't have a scanner?

John;

If you don't mind a crude hand sketch:

I don't mind at all, thanks!   As long as it's readable, what me worry?

Readable??

Now you're really getting picky!

Marty, question for you:

On the upper board right between the sound chip and the CPU there is a 2 pin plug marked JP9.

I have never seen anything connected to that plug; just wondered if you know its purpose?

Rod

JP-9 is Over head blinking light (LED).  It may be dependent on the software of the chip.

John, I have a scanner, it is the readable issue:-)

It is a simple board.  The later MTH boards had all the connectors in place.  Under the bottom board which is the DCRU like board is AC in and motor leads.  The lighting plugs Marty discussed are directional and 1.5V outputs.  The speaker jumper and the volume pot are on the top sound board.   JP-9 is the LED beacon for diesels.  On QSI systems it can drive a smoke unit for steam.  There is another plug on the bottom board for LED lighting (yellow) and white for the battery.

The 4 pin connector for coupler is misleading.  The ACG is common for 2 pins and then the others apply the + voltage for operating the coupler.  The system only has one power supply and cap for one coupler.  A switch was used to select which coupler is fired.  QSI had a kit to add the second independent coupler operation.'

The QSI manual is worth a read.

Additionally DCRU and the bottom board are not interchangeable.  There are extra power supplies on the P4 board to drive the sound board.  QSI had a separate power supply board that was provided with the sound board.  So a QSI system had a 3 board stack.  MTH had the 2 board stack.  G

Thanks GGG for those clarifications.

Rod

I could send you the diagrams from the tech manual if you provide me an e-mail address.  I repair MTH locomotives and wish MTH had better diagrams and better parts lists.  I have no problem with anything Lionel, including a very quick response from their service department...MTH is hit or miss.  There are lots of good people at MTH, just not enough of them. 

John, is your GS-4 a premier version or a railking version? The premier version has a constant voltage board in the roof of the locomotive, which gets it's power from the rollers. If all you want is an operating back up light, the green plug on the bottom board and a 1.5 volt board is what you need, and if you want lighted rear markers, the yellow plug as previously stated will do the trick. I have installed backup lights on several Protosounds locos, most notably the Reading and other camelback locos, as that light housing just sits on the tender, begging for the light bulb to be installed. It is very easy, if I can do it, anyone can.

I'd sure like to look at the one for diesels if possible; thanks!

I'd love to get that manual, can you send it to my profile email address?

 Paul, I would be interested in tech manual also.  Was not aware there was one on technical stuff, other than QSI operating manuals.  E-mails in my profile.  I been figuring it out the old fashion way with a fluke.  G

paul can you also send me diagrams to me.. I have a challenger premior boad that I want to put into my 3rd rail S1 duplex.. think my QSI system in it is junk. the bottom boad setup has put inns on the bottom..with dubble prongs.. i want to know which side each wire goes too.my email address is joseywales_72569@yahoo.com..thankyou.

Did anyone get a copy of the manual from paulushook?  I was in an e-mail exchange, but it never happended? 

Kerrigan, there is no difference between a diesel and steam other than the chip used.  Boards are all the same.   G

I thought I was going to get one, but not yet.

I was hoping for one but missed it.

heres the two boards i was talking about..

Really interesting boards; totally different from the two Proto boards in the DDA40X!!

How many different Proto boards did MTH use for goodness sakes!?!

thats nothing the QSI 2 is worse with 3 different top boards or more.. i got three sets up qsi2's and cant get them to work wright.. seems like i better luck with the proto1's..so far.but still would like to know if i can go by the one mth board to wire the tether to the plug in ..