SAE TWO T14 Tuner

Can anybody help me with a owners manual for this tuner. I picked this up on ebay and want some information on the operation of it. I would pay for the copies or if it can be e-mailed. Or, is there a web site that might sell this document.
Can anybody explain the hi-blend and IF switch to me. Also what's involved in replacing the stereo bulb. It's not coming on and I would like to have it indicated.

Thanks.