The user manual for the TU-DST51 states DTV cable will work if it is 8VSB. The instructions say to call the cable company and ask the following:
- Is DTV available through your cable service?
- What type of cable do you have? Standard Cable TV Signals (Cable STD), Harmonic Related Carrier (Cable HRC), or Incremental Related Carrier (Cable IRC).
- Do you need a separate cable box to receive DTV signals?
The items in parentheses refer to the three possible cable settings in the DST51 menu.
The manual shows the cable connected directly to DST51's ATSC rf input. If a separate cable box is required it shows the cable going to a splitter. One output from the splitter goes directly to the ATSC input on the DST-51. The other output goes the cable box. The cable box is connected the NTSC antenna in on the TV set. From that I have to assume you couldn't use a channel 3 output from the cable box to the DST51.
The DST541 manual was written in 1999, when the cable situation was very uncertain. Not much different than now, I guess.
Analog -- Always out of adjustment.
Digital -- Always one more bug.