Skip to main content

I have a customer that wants me to troubleshoot a MTH #1757 UP. Do I need a MTH transformer to power this up while working on it or can a Lionel kw or 1033 operate it with out damaging the electronics. I know a Lionel doesn’t have a bell or whistle function so that’s already a problem But I don’t have a mth power supply and I’m really not really experienced on these trains either.

Original Post

Replies sorted oldest to newest

Hi if what you're taking about is Lionell zw or kw transformer highly not recommended as the circuit breakers trip very slowly and you'll burn up the boards! I would recommend z4000 mth transformer or Lionell zwl electronic transformers!

MTH Electric Trains (mthpartsandsales.com)

these ps 1 boards are conventional only!

to trouble shot ps 1 boards power up to 10.00 volts and sounds should come on if not there is a board issue of some kind, also power up slowly and monitor current if current is coming up quick over 2 amps power off immediately and check with your ohm meter for shorts! sometimes your better check for shorts before you power up at all check continuity from ground to center roller you should NOT READ A direct short 0.000 ohms!

The first thing I would do is take the cover off the engine and if it has a white battery 8.4-volt throw it away immediately, put in a new battery!

Alan

Last edited by Alan Mancus
@Alan Mancus posted:

Hi if what you're taking about is Lionell zw or kw transformer highly not recommended as the circuit breakers trip very slowly and you'll burn up the boards! I would recommend z4000 mth transformer or Lionell zwl electronic transformers!

Neither of your recommendations has any more protection from damaging transient voltage spikes than the ZW & KW have.

@MNeafus posted:

...can a Lionel kw or 1033 operate it with out damaging the electronics...

Yes, for testing purposes both of these are fine... MTH prefers a pure sine wave power supply. If you are going to run modern electonics-laden trains for any time on a layout, EVERY transformer needs Transient Voltage Suppression in the form of bidirectional TVS diodes placed in parallel with the power supply.

Rob a couple of questions.  Remind me whether you need TVS diodes in only one lead or both the common and positive lines please?  I have assumed one lead was sufficient.

Would you also recommend a modern electronic circuit breaker in the line  to the track for a postwar transformer such as a 1033 or KW/ZW operating modern (say 1995-present) MTH (or Lionel) locomotive electronics?

@Landsteiner posted:

Rob a couple of questions.  Remind me whether you need TVS diodes in only one lead or both the common and positive lines please?  I have assumed one lead was sufficient.

@ADCX Rob posted:

EVERY transformer needs Transient Voltage Suppression in the form of bidirectional TVS diodes placed in parallel with the power supply.

@Landsteiner posted:
Would you also recommend a modern electronic circuit breaker in the line  to the track for a postwar transformer such as a 1033 or KW/ZW operating modern (say 1995-present) MTH (or Lionel) locomotive electronics?

I would not, as that would make me a hypocrite because I don't use them. The breakers in all of my transformers, PowerHouses, and PowerMasters work perfectly as designed, and do not pose a threat to the electronics on board when Transient Voltage Suppression is used in conjunction with the factory breakers.

Last edited by ADCX Rob

Add Reply

Post
This forum is sponsored by MTH Electric Trains

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
Link copied to your clipboard.
×
×