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Discussion Boards => General Discussion => Topic started by: CNCPFAN on April 15, 2019, 10:47:02 PM

Title: Need help Please
Post by: CNCPFAN on April 15, 2019, 10:47:02 PM
Hello Fellow members I am in need of a Instruction sheet with the schematic for a SD70ACE Sound Value Locomotive I assume they are all the same if not it is for a NYC Heritage Locomotive item #66004  NYC 1066 I would Appreciate it I know I had one but can not find it any where,

my e-mail is cnrse2@aol.com

Thanks,D.M.M.
Title: Re: Need help Please
Post by: Len on April 15, 2019, 11:23:48 PM
The exploded diagram is here:
https://www.bachmanntrains.com/home-usa/dwg/dwgs/HO_SD70ACe_(DCC_SOUND).pdf

Doubtful you'll find a wiring schematic anywhere. You'll probably have to trace the wires out if they're still connected. If not, you should be able to use the markings on the PC board to figure out what goes where. Generally the markings will be:

R: Right Rail Pick-up
L: Left Rail Pick-up
M+: Motor Brush Connected to Right Rail
M-: Motor Brush Connected to Left Rail
L+: Light Positive
L-: Light Negative
C: Common

Len
Title: Re: Need help Please
Post by: CNCPFAN on April 23, 2019, 09:37:01 PM
Hello Len
                Thanks very much for the Instruction sheet parts b :)low up and the additional information you provided me with, I really appreciate it Thanks again.Now I should be able to figure out what to do

D.M.M.