Tektronix 4404 servcie manuals needed

[g-wright at att.net]

I would like to get a Tek 4404 computer going but lack any service
manuals.  The system  turns on but has no curser on the screen.  Has
good power from the Power supply and heater is on in the CRT.
Has a row of LEDs on the mother board. Does anyone know how 
to read these.

- Thanks, Jerry