|
|
Post by ripvanwnkl on Mar 13, 2024 13:00:51 GMT -5
Good afternoon,
I recently received brand new SD-45 which is completely dead on the track. I have 3 other AZL locos (2 F7s and a GP7) which run and light up fine on the same tracks. Suggestions for trouble shooting?
Thanks!
|
|
|
|
Post by BAZman on Mar 13, 2024 13:25:53 GMT -5
The Light/motor PC board is ‘loose’ or the tab’s underneath are not touching the motor.
1) look at each truck on both sides of the logo to see if the chassis frame horizontal pick ups are sitting on top of the center truck pick up.
2) very gently press 1 finger down at each end and middle (1 position at a time) to see if you can get motor and/or light
3) lift the shell off of the logo. Very carefully touch the PC board to determine if it is loose. This will be normally in the front of the board. make sure it is secure in the notch, even though it may feel tight look very closely to make sure both sides are solidly in the notches
4) look at the motor tabs under the circuitboard to see if they are making contact to the motor. This is very difficult to see you will need a flashlight. Normally an easier way is using a meter (DVM, analog meter on 10x (or 100) ohm. Touch probe to one side of the frame and the the other probe to the other side frame. If it does not indicate (change value a lot), the board is not making contact to one (or both motor tab(s). Lift the back and of the PC board to remove it bend the copper cabs down more than 45° but not 90! Reinsert the circuit board. Try meter again.
|
|
|
|
Post by ripvanwnkl on Mar 13, 2024 14:07:03 GMT -5
#1 step pickups are good.
#2 step pressing 3 places shows no change.
#3 step: What do you mean "lift the shell off of the logo"? Do you mean loco? How do I lift the shell? It seems very tight.
|
|
|
|
Post by ripvanwnkl on Mar 13, 2024 14:28:59 GMT -5
Followup: Got shell off and PC board fell out. Reset it and applied power. Both directional lights work but motor does not. Next steps?
|
|
|
|
Post by ripvanwnkl on Mar 13, 2024 14:43:49 GMT -5
Further followup: I examined PC board more carefully and one of two front copper motor tabs crumbled and fell off. Looks like I'll need a new PC board from AZL.
|
|
|
|
Post by tjdreams on Mar 13, 2024 15:52:18 GMT -5
Contact Rob Kluz ztrack@aol.com He can help you with getting a replacement board.
|
|
|
|
Post by ripvanwnkl on Mar 14, 2024 20:04:12 GMT -5
Thanks, tjdreams. I notified my seller who emailed Rob Kluz with my photo of failed board.
|
|
|
|
Post by ripvanwnkl on Mar 19, 2024 15:54:03 GMT -5
Final followup: With warranty replacement PCBs and much advice from Rob Kluz of ZTrack, I was able to get the SD-45 fully operational. It required multiple "fiddly" adjustments of the downward motor control tabs from the PCB and the upward motor contral tabs from the loco motor to finally make solid contact. Thanks to all for advice!
|
|
