Old MTH PS2 speaker possibly broken?? Help needed.

Do not use that speaker!  It can very easily kill your board.  You need a new 16 ohm speaker for that locomotive.  Don't try to run any more with the speaker connected, bad things can and will happen with those.

Any old 5v Proto2 engines should be checked for this exact failure - change the speaker & battery before even trying to turn it on!!!

You can get suitable replacements from MTH or any of the 3 of us service centers that replied on this thread.

Jim

yes you definitely need a new speaker. what is your engine mth item number I susect it is a ps2 5 volt board, if so you need a new 16 ohm 5 watt speaker, Don't keep using your engine as magnet is failing and if the magnet metal pieces  that are coming  loose get inside the voice coil and short it to ground you will burn out the audio amp inside the electronic. that is a normal issue you sometimes get when the engines get older, just replace the speaker and ill bet your sound will return and work normal again!

Alan

Of course he needs a 16 ohm speaker!  Look at the picture!

The Item # is 20-2349-1. Can I get a 16ohm speaker replacement from MTH? and is it safe to unplug the speaker and run the engine without it, also could the speaker part be taken off of another MTH Railking engine?

https://mthtrains.com/20-2349-1

If you have another 16 ohm 50mm speaker you can use it. Put an ohm meter across the terminals of the replacement speaker and make sure it reads 16 ohms. If its another Star Speaker I would recommend just replacing it. No sense in putting in another speaker that can develop the same problem. If you order a new one order BF-0000033.

Forest

Actually, the Star speakers have been used by MTH for years, it was only a specific batch that was affected by the plating issue you see here. 

FYI, the BF-0000033 is a Star NR-05009-01, so you're telling him to order the speaker you just told him not to use!

here is the mth speaker on there web sight!

https://mthtrains.com/node/81185#tab4 and no you do not want to run the engine with the speaker disconnected , get a new one and install it and make sure when you solder the speaker in make sure you do not have the solder touch the ground chassis or you will blow your audio amp when you power it up!

Alan

Forest posted:

If you have another 16 ohm 50mm speaker you can use it. Put an ohm meter across the terminals of the replacement speaker and make sure it reads 16 ohms. If its another Star Speaker I would recommend just replacing it. No sense in putting in another speaker that can develop the same problem. If you order a new one order BF-0000033.

Forest

gunrunnerjohn posted:

Actually, the Star speakers have been used by MTH for years, it was only a specific batch that was affected by the plating issue you see here. 

FYI, the BF-0000033 is a Star NR-05009-01, so you're telling him to order the speaker you just told him not to use!

Wait is BF-0000033 a bad speaker that I should not order, or is that the a good replacement speaker

BF-0000033 is a new speaker that will replace your current deteriorating one.  Or you can use a similar spec'd one to the following:

16 ohm, 5 watt, 50 mm Diameter, 17 mm tall

The BF-0000033 is fine, that's the one you need.

gunrunnerjohn posted:

Actually, the Star speakers have been used by MTH for years, it was only a specific batch that was affected by the plating issue you see here. 

FYI, the BF-0000033 is a Star NR-05009-01, so you're telling him to order the speaker you just told him not to use!

I seem to dis-agree. I did research this before posting. That being said I haven't ordered either of these speakers in some time.

Go to https://www.mthtrains.com/parts and do a search on BF-0000033 and you get this . Enter BF-0000022 and you get this . It is listed as (STAR) (FR-050-A1421) (16 ohms) (5 watt) (has a red dot on top of speaker) (50.0mm).

Both 16 ohm 5 watt 50mm speakers. Neither is listed as Star NR-05009-01. BF-0000033 replaces it. At least that is how I interpreted it.

Alan: What will happen if you run the engine with the speaker dis-connected. Will it damage the Audio amp? Do you have first hand knowledge that this will happen? Thank you for your response.

Forest

yes it might be possible especially if you unsolder the leads and leave them loose if a speaker wire touches ground or chassis of the engine you just blew the amp and possible all the electronics and the ps 2 3 volt n 5 volt boards are not cheap, you'd be better to just order the speaker and install it when you get it!  depends would you rather spend $15.00 to $20.00 or have  to replace a $ 200.00 board the choice is yours !

Alan

Yes, Leaving the leads exposed can and will lead to bad things. I am not to sure dis-connecting the speaker and taping off the leads will. I just called MTH tech. Don suggested turning the volume down just to be save. He agrees and does not think it is a problem. But if you want to be save park it till the speaker comes. 

ASC Tech for too long to Remember . Forest.

Hi Forrest do you know Don's extension at mth? he is very hard to get a hold of!

Alan

E-mail me your phone number and I will give you a call. Be patient. My windows 10 computer fried the motherboard Thursday. I am having trouble accessing e-mail from time to time on my 10+ years old Dell 1720. I have to go out for a little while but will get back to you.

Forest.

@gunrunnerjohn posted:

Of course he needs a 16 ohm speaker!  Look at the picture!

I’m in the same boat. Same speaker but bottom line is 102 E. <—(What’s this ?)  

Mine is for 2001 SP GS2. Never run before.  Replaced battery with orange BCR. Ran one loop but gave up because of wretched sound. Checked speaker and spotted some flaking. MTH web page looks like a strike out. Last one matches but says obsolete and out of stock (and that bottom line is different).  
Are there other options that are compatible?????My speaker

Some of the speaker flakingSome Guidance Appreciated !!!         THANKS !!!

16 ohm 50mm used in a PS2 5V.

You might have to go to 3rd party parts source- Digikey or another popular electronics supplier.

On 'thebay, look-up: vthokies2007-2011.

He sells identical replacement speakers.

Check the actual size - they say a 2 inch diameter speaker - 50 mm - fits but it doesn't on MTH switchers.