They say this is a Sub UCN5800
UCN4401A Substitute UCN5800A
Page 16 line#9
http://www.allegromicro.com/techpub2/ams105.pdf
Here is the Datasheet for UCN5800
UCN5800_UCN5801.pdf
Uhhh Ummm.
This subject goes real deep. Do you have a part number or something?
Here are some of many Links I found while searching.
X-10 'Butler-in-a-box' voice controller
BUTLER-IN-A-BOX
Mastervoice
http://www.mastervoice.com/
http://www.mastervoice.com/newslet1.htm...
Wow I see why you have had trouble finding it.
Here is the closest Datasheet I could find to that number.
TD6347F
Please make double sure you got all of the letters and numbers right. TD6342P
TD6347.pdf
Any drawings on the unit? Wiring Instructions? If you can hook the speakers up to it and power it up you may be able to find the input wires by touching a streight pin to the wires. It will humm in the speakers when you touch it.
HSA1699-01U is a JVC OEM Speaker from model# CS-XG638J
There is a Service Manual available for purchase.
http://www.manuals-in-pdf.com/csxg638cju-p-205575.html
CS-XG638J
http://www.milun.net/models/JVC/c.shtml
HSA1699-01U
http://www.unionel.com/catalog/cat_item_idx_793.html
Here is the best I could do!
Website
http://www.nmbtech.com/index_f.html
Datasheet
http://www.eminebea.com/content/html/en/motor_list/pm_motor/pdf/pm35s048.pdf
Wiring Info
http://www.sherline.com/8760pg.htm
PM35S-048-HPE8
Made by NMB
unipolar stepper motor
Another Datasheet...