Toshiba CZ2685 help

[dave500]

I've owned this Toshiba CZ-2685 for 21 years, and have repaired it in the past. I don't have a service manual (was in TV/Audio buisiness years ago). The other night it went out. The symptoms are: no tuner operation, no CRT raster (although horiz and HV is there). The "video" input audio works, but the volume only works when remote or front panel 'vol UP' switch is tapped many times (high volume)... as the 'vol down' switch is pressed, the audio won't go to low volume... it just goes quiet. When turned off, the CRT displays a white 'dot' in the center of the screen. All internal fuses OK.

Has anyone seen this before on a Toshiba TV? Anybody have a manual or can offer some help?

Thank you very much!