Motorola VT-71M-A

[EdKozk2]

I got this Motorola VT-71M-A at our local flee market a few years ago. I think the chassis is a TS-4C based on the schematics from the ETF. Does anyone know if there are variations of the TS-4C chassis? If there are, can someone recommend where I can get a high resolution CD copy of the second Riders television manual. The Sam's folder 55-16 I have doesn't have a picture of the vertical blocking transformer.
My chassis production number is 5923. The chassis uses a 12AT7 osc/mixer and 6SQ7 for the first audio stage.
The cabinet is in rough shape and the 7JP4 crt has a loose socket.
Thanks,
Ed