6 Proto 1 diesel engines with problems

The proto 1 board can usually be repaired, your ps2 if it is a 5 volt board usually dies for no apparent reason but sometimes can be repaired ! if your board is dead it can be replaced with a ps 3/2 board and all functions will be good again. let me know if you need help ! what state do you live in ?

Alan

Latrobe,Pa. Yes I d like help. Tx me at 724 689 8973.

Most likely this is resets on your top boards. As far as sound, have your ensured the speaker is good.  The volume pot is attached and adjusted correctly.

The first step is a new good battery, then a reset 18 according to the instructions.  G

Yes volume is ok. Speakers I checked with known good speaker. Batteries are either bcrs or new rechargeables

What do you mean run with no sound?  Do you have bell and whistle?  Do the ones that do not run make any sounds when power first applied?  G

The proto 1 s that run have no sounds,no bell or no whistle. I have 2 more proto 1s that run with sounds,bell ,whistle but when running the diesel sounds are garbled,hard to describe, humming maybe.The proto 2 with 5 volt is completely dead no lights nothing. The proto 2 had problems when new dealer fixed it then retired. So it just sat after it broke a second time. Very little run time. Thank you for inquiring. I'm challenging myself to fix these.

I am sure I can get all your PS-1 running, but it is not simple trouble shooting to explain.  Usually software conflict resolved with tech chips.  Occasionally a hard part like voltage regulator, or a trace repair.

PS-2 can be upgraded to PS-32 as a repair.  If the premier may be worth it cost wise.  My email is in my profile if you want be to look at anything specific.  G