Lionel HO 1960's

[cheapclassics]

Lionel HO was DC powered.

Keep on training,

Mike C. from Indiana

[trainma1]

I have a Lionel HO engine which I can't seem to get it to work.
I did get the tender whistle to operate and there fore I assume this consist is AC operated.
There is a red and a black wire from the cab to the tender. Does it matter how they are connected? I tried putting power to these leads but nothing happens.
The box is labeled "0645W" and the cab no 647.
Is there a schematic available? Can anyone help?