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Re: Q1a decoders shut down

Banjotrain
 

My problem was I was using one 8 ohm speaker, whereas these decoders should use two 8 ohms in series which is 16 ohms.
When I added the second speaker, the problem went away.
Erik


Re: Q1a decoders shut down

Ray Di Ciacca
 

I have the same problem. Can you tell me how to fix it. thanks
Ray


Decoder shutdown

Ray Di Ciacca
 

I have the same problem. can you tell me how to fix it


Technical question for QSI

kjlovesya
 

I've got an O scale C424 and a QSI Titan FX-DO decoder to be mated with it.    I only recently noticed that the new decoder came with the wrong sound file.  The prime move is the ALCo 251 but the sound file is actually an ALCo 244 engine.   I checked the available files for an ALCo 251 sound file, suitable for the O scale decoder, but found none. 

  The HO scale ALCo 251 sound file has been available for at least 6 years.  Why is it not yet available in O scale?

  What would happen if I installed the HO scale ALCo 251 Titan sound file into the O scale decoder?




Best regards,
KJ


Re: Q1a decoders shut down

Bob Anthonyson
 

Okay, didn’t realize they were on a tester. 😁

Bob 


On Feb 27, 2021, at 6:37 AM, Banjotrain via groups.io <bennettedm@...> wrote:

I was testing them on a decoder tester and had been testing some Titans.
When I tested the Q1a's I forgot that they needed a 16 ohm speaker load.  My mate, Marcus, reminded me.
So I hooked up 2 speakers in series and all the decoders tested OK.

Thanks for your input.
Erik


Re: Q1a decoders shut down

Banjotrain
 

I was testing them on a decoder tester and had been testing some Titans.
When I tested the Q1a's I forgot that they needed a 16 ohm speaker load.  My mate, Marcus, reminded me.
So I hooked up 2 speakers in series and all the decoders tested OK.

Thanks for your input.
Erik


Re: Q1a decoders shut down

Bob Anthonyson
 

Erik,

Have you checked your wheels?  These are often the symptoms of dirty wheels or dirty track.

Bob



On Feb 26, 2021, at 5:37 PM, Banjotrain via groups.io <bennettedm@...> wrote:

I have several Q1a decoders that sound and run perfectly for a little while then shut down abruptly - both sound and motion. 
Then after a few seconds, continue normally for a while then shut down again with the cycle repeating ad infinitum.

I presume it is a hardware heat detection problem.

Does anyone know how to fix it?

Thanks
Erik


Q1a decoders shut down

Banjotrain
 

I have several Q1a decoders that sound and run perfectly for a little while then shut down abruptly - both sound and motion. 
Then after a few seconds, continue normally for a while then shut down again with the cycle repeating ad infinitum.

I presume it is a hardware heat detection problem.

Does anyone know how to fix it?

Thanks
Erik


Re: Pinout of early decoder

Banjotrain
 

Thanks Ed,
Actually I found what I was looking for: The response by M R (didn't leave his name) to the topic "Q1 decoders" on the next page.
So thanks to M R, Bob Cochran and you, who prompted me to look for it.

BTW, I meant a V7 decoder not Rev 7, and for info, Paint opens a .part file.

Erik Bennett


Re: Pinout of early decoder

Ed.Sauers
 

Banjo Trains,

Can you upload a photo of the decoder, also it would be nice if you include your name so we know how to address our replies.

Ed Sauers

On 2/26/2021 6:30 AM, Banjotrain wrote:
Can anyone tell me the pinout of a Rev 7 decoder, wider and shorter than the normal one.
It has 2 caps mounted inboard and a chip labeled U28B  (C) 2005.
It has the 2-pin speaker and track sockets labeled, but there is a 4-pin socket next to the chip and an 8-pin socket at the opposite end.
Which is the motor, power, headlight & rear-light, etc?

Thank you.

Virus-free. www.avast.com


Pinout of early decoder

Banjotrain
 

Can anyone tell me the pinout of a Rev 7 decoder, wider and shorter than the normal one.
It has 2 caps mounted inboard and a chip labeled U28B  (C) 2005.
It has the 2-pin speaker and track sockets labeled, but there is a 4-pin socket next to the chip and an 8-pin socket at the opposite end.
Which is the motor, power, headlight & rear-light, etc?

Thank you.


Re: Quantum programmer not functioning

Greg Elmassian
 

Joo,

Let's start at the beginning...

Run the quantum programmer software.... then on the following page, follow the instructions: Firmware version/upgrading

https://elmassian.com/index.php/dcc/specific-manufacturers/qsi-equipment/qsi-programmer-hw-a-sw

This testing will verify:
  • the programmer is responding
  • the output stage is working (be sure you are connected to a QSI decoder)
  • the firmware version

Let's start by verifying the basics

Greg


Re: Quantum programmer not functioning

Joó Ferenc
 

Greg,

The loco works fine on regular DCC throttle.

When using CV Manager, there is sound so cables are good. But any further action such as switching on a function or using a function button for sound brings up the error codes.

When I try to retrieve loco info with Quantum Upgrade, I get an error message, too.

The CV Manager is version 3.1.0.7 from 2016.
Quantum Upgrade is version 3.1.0.0.

How do you know what firmware is on the programmer?

Looks to me like the Programmer has a hardware fault. If I had a wiring diagram for the Programmer, a guy here could check which component is bust,

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!"


Greg Elmassian <greg@...> ezt írta (időpont: 2021. jan. 26., K, 17:55):

That looks like an error from the Silicon labs driver.

Let me ask a few things:
1. what version of firmware is on your programmer
2. what version of CV Manager are you using
3. what version of Quantum Update are you using?
4 running Quantum update, can you read the loco firmware from the decoder?

Greg


Re: Quantum programmer not functioning

Joó Ferenc
 

Greg,

Yes, I was using the Quantum CV Manager software.

Now you have got me lost.

I thought you meant not to use the cab (driving) function in CV Manager with G scale locos.

Is there any other way to drive them via the Quantum Programmer?

Or was that not what you were referring to?

Probably I best get a new Programmer. I shouldn't have sold my second one...

Üdvözlettel / Best regards / MfG,

Joó Ferenc / Ferenc Joó
NOHAB Apartman
Badacsonytördemic, Hungary
http://nohabapartman.hu
GSM: +36 20 4141 621

Sent from Samsung Galaxy A3 (2017) phone

Greg Elmassian <greg@...> ezt írta (időpont: 2021. febr. 17., Sze 6:31):

[Edited Message Follows]

I missed your reply, somehow not all messages were displaying...

So, it can be easy to exceed the power output of the QSI programmer when trying to run motor, not usually lights.

You can burn up the resistor, the output transistor or the chip... have seen all 3...

I was assuming you were using the QSI CVManager software.

Greg


Re: Quantum programmer not functioning

Greg Elmassian
 
Edited

I missed your reply, somehow not all messages were displaying...

So, it can be easy to exceed the power output of the QSI programmer when trying to run motor, not usually lights.

You can burn up the resistor, the output transistor or the chip... have seen all 3...

I was assuming you were using the QSI CVManager software.

Greg


Re: Quantum programmer not functioning

Joó Ferenc
 

Greg, I did say I get the error message when trying to power up the loco or turn on lights.

So no, the Programmer can not power the Titans, but thanks for the hint. What component might be damaged if I did use the Programmer to run the loco before, please?

Thank you.

Üdvözlettel / Best regards / MfG,

Joó Ferenc / Ferenc Joó
NOHAB Apartman
Badacsonytördemic, Hungary
http://nohabapartman.hu
GSM: +36 20 4141 621

Sent from Samsung Galaxy A3 (2017) phone

Greg Elmassian <greg@...> ezt írta (időpont: 2021. febr. 17., Sze 0:41):

So, the quantum programmer can power the Titans in ops mode, and you can safely play the sounds.

Running the loco is NOT safe, and often you burn up the programmer's output if you draw too much current.

I know G scale locos can do this, don't ask me how I know!

Resist the impulse to run your locos from the programmer, put it on the track and run your regular DCC system.

Greg


Re: Quantum programmer not functioning

Joó Ferenc
 

Thanks but that's what I do and always have done...

Üdvözlettel / Best regards / MfG,

Joó Ferenc / Ferenc Joó
NOHAB Apartman
Badacsonytördemic, Hungary
http://nohabapartman.hu
GSM: +36 20 4141 621

Sent from Samsung Galaxy A3 (2017) phone

kelly dorf <kelly.dorf@...> ezt írta (időpont: 2021. febr. 17., Sze 2:43):

Use a program track!  One loco at a time.
Kelly


Re: Quantum programmer not functioning

kelly dorf
 

Use a program track!  One loco at a time.
Kelly


Re: Quantum programmer not functioning

Greg Elmassian
 

So, the quantum programmer can power the Titans in ops mode, and you can safely play the sounds.

Running the loco is NOT safe, and often you burn up the programmer's output if you draw too much current.

I know G scale locos can do this, don't ask me how I know!

Resist the impulse to run your locos from the programmer, put it on the track and run your regular DCC system.

Greg


Re: Multiple LEDs on FX-DO

peteski7
 

Joó,
That dual-diode circuit I attached is simply the positive half of a bridge rectifier. Since you only need positive voltage for as the common for function to work (negative is provided through the decoder), the negative half of the bridge rectifier is not needed. 

I model in N scale, so I need to find smallest possible solutions.  A dual diode is smaller than a bridge rectifier.  Actually this dual-diode common-positive circuit is used by many manufacturers for headlight power on factory installed light boards that include a 6-pin decoder plug (since 6-pins do not include the "blue" common positive output).
Peteski

On Mon, Feb 15, 2021 at 02:25 AM, Joó Ferenc wrote:
Thanks KJ and Peteski,
For the diodes from the track pick-up, that should not be needed if I connect to the bridge rectifier, if I am correct.
Üdvözlettel,
Best regards,
MfG,
 
 

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