tried powering the LX 200

Began the assembly of Ian D's LX 200 mount. Couldn't find the hand paddle cable so I grabbed an extra phone handset cord. Couldn't find the Dec motor cable! So I made one, a "rollover" cable with a 1 metre ethernet patch cord. Installed a new fuse in the main interface board. Checked the fuse in the power cord. Verified incoming power. Verified volts and polarity to the connector port. Turned it on. Nothing! Sheesh. I reported my findings. I'm at a loss. This is going to take a lot more time to figure out...