Date   

Re: Q1 Motor Diode Chips

ffbrehm@...
 

Hi Peteski,

 

I think I’m going to retire the decoder that I had that let the smoke out and use either a Revolution or Titan.

 

Time to move to a newer model.

 

Frank

 

From: QSIndustries@groups.io <QSIndustries@groups.io> On Behalf Of peteski7 via groups.io
Sent: Thursday, January 7, 2021 10:50 PM
To: QSIndustries@groups.io
Subject: Re: [QSIndustries] Q1 Motor Diode Chips

 

I have found a replacement MOSFET transistor pair chip (8 lead device) for the one in the motor driver H-Bridge on QSI Revolution board used in the Walthers N scale Mallet loco.  I replaced the blown chip, and that fixed the decoder.  But the transistor pair chip on that  decoder has different markings than "ZXMC 3A16 0406".

Peteski


Re: Older QSI decoder

 

One question. How do you record CV's and changes with POM? The only way I know of to ensure proper documentation is with JMRI and the xml's. My approach was to save each xml as changes were made. And when finalized on the loco. Just keep the latest xml and the original. And after thinking about it. Even the original is not needed. One can always default the decoder to it's original state. But I like to save the changes as I go along just in case I want to refresh my memory of what I had done. When I only had the DCS50 and tried changing CV's POM, I found I was scribbling notes all over the place. Very un-professional. When I used the pt, I was still doing the same. So I had to buy a SPROG and hook up the PC for JMRI. Now I rely on JMRI and xml to keep a record of what I've done to the loco. In fact, I even print out the CV's on paper. Sorry if this is off target about QSI.
Morgan F Bilbo, DCS50, UT4D, UR93, SPROGIIv4, JMRI 4.20, Pennsy modeler 1952


Re: Q1 Motor Diode Chips

peteski7
 

I have found a replacement MOSFET transistor pair chip (8 lead device) for the one in the motor driver H-Bridge on QSI Revolution board used in the Walthers N scale Mallet loco.  I replaced the blown chip, and that fixed the decoder.  But the transistor pair chip on that  decoder has different markings than "ZXMC 3A16 0406".

Peteski


Re: Older QSI decoder

Dave Robinson
 

You're right Morgan, you can't read CVs on the main, only on the programming track.
However, QSI did provide this wonderfull 'CV query' facility, ie CV64, whereby you can ask the decoder (on the main line via programming-on-the-main) 'what's the value in CV x'.  In my opinion, that's the best thing about QSIs; I wish other brands would do this too.
Beware: if doing an indexed CV, you must set the primary index (and the secondary index depending on the CV) BEFORE querying the decoder.

CV62, Programming Acknowledgement, will also speak to you when programming on the main, but IMO it gets old fast.  That's why I turn it off.  And it interferes when a programming service like JMRI is doing indexed CVs.

I'm with KJ, I want to know how to it 'manually' rather than depending on the 'magic' of something like JMRI.  Don't get me wrong; I use JMRI or QSI's CVManager when it's convenient (like when doing _lots_ of CVs), but for just a few changes, I'd rather use POM with a keypad (Digitrax is my choice).  In my club, it's commonly not convenient to have a computer with JMRI up & running; your conditions may be different.  I do keep lots of notes on the fleet along with JMRI & QSI roster files too.

POM is fine but for some things you have to keep your wits about you, like changing decoder addresses.  And once in a while I muck things up and have to recover on the programming track. :-)

Not trying to sound overwhelming,
Dave in Edmonton


Re: Q1 Motor Diode Chips

ffbrehm@...
 

Hi KJ,

 

I’ll contact Kelly, that’s a good idea. I’m mulling over using a Titan.

 

Thanks for your help,

Frank

 

From: QSIndustries@groups.io <QSIndustries@groups.io> On Behalf Of kjlovesya via groups.io
Sent: Thursday, January 7, 2021 9:27 AM
To: QSIndustries@groups.io
Subject: Re: [QSIndustries] Q1 Motor Diode Chips

 

Hi Frank,

  Thank you for your reply.   Come to think of it, Kelly (of QSI) mentioned the motor output runs through an H bridge chip.  I don't know about availability.  Have you tried directly contacting Kelly?

  If you have a replacement Titan I would use it.   There are so many feature upgrades in the vastly superior Titan.  Gone is the crappy prime mover (UFO whir) sound.

  The Q1 decoder can be repurposed into something else.   e.g.  a commuter cab car with horn, bell and lights.   I did a couple of commuter cab cars with repurposed Revolution decoders (great horns and lights, but lousy prime movers) turned down all motor and prime mover functions and it works beautifully.   Alternately, the Q1 would probably make a decent caboose decoder.


Best regards,
KJ


Re: Q1 Motor Diode Chips

kjlovesya
 

Hi Frank,

  Thank you for your reply.   Come to think of it, Kelly (of QSI) mentioned the motor output runs through an H bridge chip.  I don't know about availability.  Have you tried directly contacting Kelly?

  If you have a replacement Titan I would use it.   There are so many feature upgrades in the vastly superior Titan.  Gone is the crappy prime mover (UFO whir) sound.

  The Q1 decoder can be repurposed into something else.   e.g.  a commuter cab car with horn, bell and lights.   I did a couple of commuter cab cars with repurposed Revolution decoders (great horns and lights, but lousy prime movers) turned down all motor and prime mover functions and it works beautifully.   Alternately, the Q1 would probably make a decent caboose decoder.


Best regards,
KJ


Re: Older QSI decoder

kjlovesya
 

Hi Morgan,

  I wish to add to the above.

  The steps to Programming On the Main (POM) is slightly different depending on the manufacturer of your DCC system.   I don't remember the button sequence on the Digitrax cabs to get to the POM stage.  Your Digitrax user's manual will help with that.   However, as Peteski mentioned, once you are there you can do the 'Query'.   QSI's Query is simply CV 64 = whatever CV number you wish the decoder to speak.

  The other feature Peteski mentioned is the 'Status Report'.   By pressing F10, the decoder will speak it's status.   While stopped, the decoder will speak it's address.  It will also determine if it's in an advanced consist and report if it is.   The manual also tells you how to use the Status Report to determine distance travelled, speed, a host of other features and which of these are verbally reported. 

  There is a caveat.  Accuracy depends on doing the math.  While the decoder will speak scale speed or distance, it's accuracy is determined by the circumference of the driving wheels and gear ratios.   The manual also explains how to program these into the decoder.

  There really is so much that these decoders can do.  I find half the fun, after setting up appropriate momentum settings, is using the variable brake realistically.     Learning is best done one step at a time.   :-)

Best regards,
KJ


Re: Older QSI decoder

peteski7
 

Morgan,
As far as I know, QSI decoders are the only decoders out there that use human speech for verbal acknowledgment of values written to CVs in POM mode (and only in POM).  You can also (literally) have the decoder read back a value of any CV, again on the main line only.

While the loco is on the main track, do a POM write to one of its CVs. Just make sure that you are addressing the correct locomotive while doing any POM.  For example write some value (like 5) to CV3.  Once you do that, you will hear a male voice speaking "C V three equals five".  Cool, or what?  :-)  Whether this feature is enabled or disabled is controlled by CV62. I have  heard that some users disable this feature as it might cause some problems.

There is also a verbal readout of any CV in the QSI decoders which will literally tell you a value of any CV in the decoder.  That is CV 64.  In POM mode write to CV64 the CV  number you want to find the value of.  For example, if you write 1 to CV64 on the main line, you will hear a male voice speaking "C V one equals three"  (or whatever value is in CV1.  This feature is safe to use.

All of this is described in that thick manual you are afraid of. :-)
Just go right to the page in the manual which describes CV64 and CV62, to explain how it works.

Another cool feature is that when you press F10 on your throttle the decoder will also speak.  When the  loco is stopped, it will speak its address, and when it is moving, it will tell you (in scale miles per hour) how fast it is traveling.

Peteski


Re: Q1 Motor Diode Chips

ffbrehm@...
 

Hi KJ,

 

What caused it? A short on one of the motor leads, now fixed that I missed seeing.

 

I am looking at some possible replacements for the chip as I believe it is a motor control with 3 diodes inside.

 

I do have a few Q1a / Revolution A and U’s as well as some Titans, just hate to lose what was still a good decoder for sound and basic light functions.

 

Thanks for the reply,

Frank

 

From: QSIndustries@groups.io <QSIndustries@groups.io> On Behalf Of kjlovesya via groups.io
Sent: Wednesday, January 6, 2021 8:51 AM
To: QSIndustries@groups.io
Subject: Re: [QSIndustries] Q1 Motor Diode Chips

 

Hi Frank,

  Unfortunately, obsolescence is a thing.   I know that's why QSI went to the Titan design instead of continuing the Q1a / Revolution decoder.  I don't know if components of that era are still available.  Fact is, most technology is obsolete after 10 years.  Unless the component requires some kind of programming, you might try an electronics surplus store.

   What caused the malfunction in the first place? e.g. short in the motor, weak field magnets (increases current draw), etc.  

   Personally, if you like the locomotive, I feel it's worth the investment in the Titan - U.   There are so many improvements in the Titan I cannot list them here.   There is just so much more operation and sound realism.

Best regards,
KJ

 

 


Re: Older QSI decoder

 

Wow! This info you guys are providing is priceless. Let me ask a basic question. How do I get the loco to speak? Can I do that on the pt? or must it be POM. (Please give step by step for this novice) And this is the first I've heard that you can get a read back POM verbally. It has always been "known" that on POM, you can not read back. Up till now, I put the loco on the pt/remember I have SPROG and get read back on JMRI. Easy to do. But when I had "any loco" on the layout, I could never get read back - only make changes and never remember what I had before. I had to write everything down. With programming on the pt and JMRI, I always could see what I was doing. POM sounds like a little more dangerous to me. Up till now, I do use POM for CV's 2,3,4,5,6 but nothing else. All other programming was done on the pt/JMRI. And if I did make changes POM, I had to try to remember to get back on the pt to input them in JMRI. After all, JMRI and xml is the place for storage. I even keep a separate file on my desktop with all those old xml's and only keep the latest on my laptop. So, just FYI I now have 3 xml's on this QSI loco plus one sent by a friend. When I get finalized on the loco, only the latest will be easily obtained. All others being on the desktop must be transferred to the laptop/via flash drive if needed. But in reality, that's very remote. Because with all my locos except QSI are finalized. Thanks again to a bunch of really nice people!


Morgan F Bilbo, DCS50, UT4D, UR93, SPROGIIv4, JMRI 4.20, Pennsy modeler 1952


Re: Q1 Motor Diode Chips

kjlovesya
 

Hi Frank,

  Unfortunately, obsolescence is a thing.   I know that's why QSI went to the Titan design instead of continuing the Q1a / Revolution decoder.  I don't know if components of that era are still available.  Fact is, most technology is obsolete after 10 years.  Unless the component requires some kind of programming, you might try an electronics surplus store.

   What caused the malfunction in the first place? e.g. short in the motor, weak field magnets (increases current draw), etc.  

   Personally, if you like the locomotive, I feel it's worth the investment in the Titan - U.   There are so many improvements in the Titan I cannot list them here.   There is just so much more operation and sound realism.

Best regards,
KJ

 

 


Re: Older QSI decoder

kjlovesya
 

BTW Don,

  You don't actually need a QSI programmer for CV management.   You can use either JMRI Decoder Pro or (if you have an NCE DCC system) download the free CV Manager program.  The CV manager program is very similar to Decoder Pro.

  Conversely, you can program the more tedious (but frugal) way, by individually programming each CV using the manual as a guide.  (That's actually how I first learned the Revolution decoder - What can I say?  I wanted to learn.)

Best regards,
KJ


Re: Older QSI decoder

kjlovesya
 

Oops!  Yes, it was a typo.   <laughing> as I wrote the word "typo", I actually typed "type".   *GRIN*    Thanks Dave!

Don, my apologies.   When doing a CV value 'Query' you Program On Main --> CV 64 = x*    (where x* is whatever CV # you wish to hear the value)  
In the case of version number you program CV 64 = 7.  The decoder will 'speak'  something like, "CV six four equals seven."


Best regards,
KJ


Re: Older QSI decoder

Dave Robinson
 

KJ, must have been a typo; that CV should be 64 instead of 62.  7 into 62 won't be good when diagnosing problems especially when using JMRI.
Otherwise, excellent answer.

Dave in Edmonton


Q1 Motor Diode Chips

ffbrehm@...
 

Hello all, this is my first post since the group moved from Yahoo.

I smoked a Q1 decoder from a Proto GP30. The chip is next to the motor connector. Number is ZXMC 3A16 0406. I believe it is for motor control. Does anyone know where or if these chips are available?

Any help is greatly appreciated. I would just like to save this decoder instead of using a revolution. This locomotive only needs headlight and reverse lights.

Frank Brehm


Re: Older QSI decoder

Lou
 

Morgan,

Don't try to grasp every detail in the programming manual. Determine the first thing you want to change and focus on that. The manual will explain what is needed for that particular function and the setting are related to the options needed. Then practice making that change. 

JMRI will be a big help getting the programming done. Learning what can be changed will be helpful. Then find that option in JMRI and choose the option that suits you and JMRI will make it happen.

Use programming on the main and learn how to read back the CV setting to confirm what you wanted to do was done. Or, if it something like a light change, you can check the operation immediately.

Good Luck.

Lou


Re: Older QSI decoder

 

My thanks to you KJ: That's one of the reasons I like QSI. The advanced features. Altho I'm still a novice and have no idea what they all do, it's the fun for the future of experimenting with them. One thing I've found already is that you run the loco more prototypically. Use a brake and it's subsequent squeal. I sure can't do that with my other decoders.
Morgan F Bilbo, DCS50, UT4D, UR93, SPROGIIv4, JMRI 4.20, Pennsy modeler 1952


Re: Older QSI decoder

kjlovesya
 

Hi Don,

  The QSI decoder is JMRI compatible.  What version (CV7) is the decoder?  (Hint: Program On Main --> CV 62 = 7 )   If you were able to set it back to factory settings does the locomotive run properly?    Why do you want to swap decoders?   Perhaps we can help get the existing running to your satisfaction.

  The QSI version 7 (and higher) decoder has several features that are only now showing up in high end decoders.   Features like working fully variable brake, Heavy Load (allows simulating climbing or descending a mountain grade with a heavy load) at the touch of F9 key.   Decoder query allows you to read the CVs while Programming On Main.  Built in speedometer, odometer, and a host of other features can be 'spoken' by the decoder by pressing F10 (Status Report).   There's a whole lot more that many people do not know.

KJ


Re: Older QSI decoder

dlgertz <dlgertz@...>
 

It’s 1:87 scale. You probably know it as OO.

 

Don

 

Sent from Mail for Windows 10

 

From: Joó Ferenc
Sent: Monday, January 4, 2021 11:42 PM
To: QSIndustries@groups.io
Subject: Re: [QSIndustries] Older QSI decoder

 

Don,

 

Is that an H0 loco? 

 

I am looking for a Titan FX-DO decoder (one with a smaller board on top of the bottom one) which is usually used in O scale locos.


Üdvözlettel,

Best regards,

MfG,

 

Ferenc Joó

Correspondent for Hungary

TREU - Today's Railways Europe

IRJ - International Railway Journal

GSM:   +36204141621

 

NOHAB Apartment

8263 Badacsonytördemic

Debreczenyi u. 9. / HUNGARY

"The holiday apartment on Lake Balaton

with its own garden railway!"

 

 

dlgertz <dlgertz@...> ezt írta (időpont: 2021. jan. 5., K, 7:31):

Thanks Ray.

I only have the one BLI loco and can’t see buying a QSI programmer.

 

Don

 

Sent from Mail for Windows 10

 

From: Ray Di Ciacca via groups.io
Sent: Monday, January 4, 2021 1:53 PM
To: QSIndustries@groups.io
Subject: Re: [QSIndustries] Older QSI decoder

 

I had the same problem. You will have to replace the entire board. the attachment gives the wiring,

  within #1 on the drivers side of the loco. Cut the plug off the harness and test the wire with a multi meter to make sure. Make sure you add the wires from the tender also. You may also have to cut the wires to the reed switch in the engine. 

Good luck Ray

 

 

 

On Jan 4, 2021, at 2:10 PM, dlgertz <dlgertz@...> wrote:

 

I want to replace the QSI decoder in my used BLI Mikado HO301e05 C (2004) with a Tsunami 2, TSU-2200 and a current keeper. BLI no longer supports this model and I donbt know the wiring harness configuration between the tender and engine. Does anyone know which wires are which? Also do I replace the entire board or just part of it?

 

I tried programming the address using JRMI, but lost the lights and sound and was told by BLI that this decoder is not JMRI compatible. I was able to set it back to factory settings.

 

Thanks,

Don Gertz

 

Sent from Mail for Windows 10

 

From: kjlovesya via groups.io
Sent: Monday, January 4, 2021 8:17 AM
To: QSIndustries@groups.io
Subject: Re: [QSIndustries] Older QSI decoder

 

Hi Morgan,

  Your situation is exactly the purpose of this forum.  We are here to help.    I suggest going through the Revolution U - users guide first.   Obviously, it's for the Revolution U decoder installation, but there are many programming examples of CVs you should know.   Skim the actual installation (wiring) information and focus intently on the programming CV instructions.   There is some very helpful information within (and the users guide is relatively small).

  If you have trouble - reread the section.   If you still have trouble ask the forum.   We are here to help.   :-)      You can do this.  Put the effort in.  It will come to you.   You'll get it.


Best regards,
KJ 

 

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Re: Older QSI decoder

 

digertz: That's where I was. Although I have other BLI locos, only the one QSI. But when I ran the two I1sa's together - a Paragon 2 and the QSI. They ran and sounded different. Chuff, bell and whistle all different. I like that. No two locos should sound exactly alike/with the exception of diseasals. And I like the QSI. But I started having trouble with it when I tried to program on JMRI. The SPROG acted peculiar. So, I contacted SPROG web site and they helped me. So the QSI is now programmed and running. And I'm in the process of tweaking the CV's. My point is that the QSI is a fine decoder. Better (in some ways) than what I've seen and my BLIs. Paragon 2 and 3. The BLI are great too. IMHO. So if you really would like to keep the QSI, please put a thread on this group and we'll try to help. And if you really want to switch out the decoder, there's a wiring diagram available - as stated above. This group is here to help. Give us and your QSI a chance to prove it's quality. Is it quirky? You should be reading about LokSound and TCS WOW and some others. 5,000? or 2,000 CV's. Egads! At least, when I ran JMRI on BLI and QSI when new, they only took about 10 minutes to read the entire file. And each subsequent read never took longer. And from what I've read, a LokSound took an hour. Don't get me wrong. Tsunami 2 is a good decoder. But I don't have one and all I've heard about them is that they are "middle ground". Not the worst, not the best. OK?
--
Morgan F Bilbo, DCS50, UT4D, UR93, SPROGIIv4, JMRI 4.20, Pennsy modeler 1952

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