Skip to main content

Reply to "JLC GG1 - Shorting out Help"

Update:

I have an old troller DC power pack from my long ago HO days.  Its capable of 12 volt amps DC.  I connected the transformer to the motors along with my amp meter and saw that the motors are drawing a 1/2 amp just starting to move.  The flywheel only motor starts spinning sooner than the motor with sensor on it.  The one with the sensor keeps pausing.  I have to increase the voltage to get it turn consistently.  I also noticed the bridge rectifier gets very warm with just a minute or two of testing.  The dc power pack tripped its electronic breaker a few times testing the motors.  I can only assume the motor with the speed sensor must be bad since its the one pausing.  It must be shorting out internally which caused the FETs to blow on the odyssey board.

I guess the next step is to completely pull the motor out and test each one individually to confirm the bad motor.  Thankfully, both are in stock at Lionel.  At least I was able to repair the Odyssey board's blown Fets for a few bucks instead of buying a whole new odyssey board as well.

Last edited by Joe Fermani

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

×
×
×
×
×