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Samsung LN52A750 TV supports only one cable type at a time

by HydraCoach / May 4, 2009 7:08 AM PDT

Hello,

I purchased an LN52A750 TV recently and I'm very happy with it. However, I found that it supports only one cable type (STD, HRC or IRC) at any given time.

If I do an auto scan with cable type set to HRC, I get a certain set of channels. If I do another scan with cable type set to IRC, I get a different set of channels and the previous set is lost. This happens to analog as well as digital channels, though I'm interested only in the digital channels.

Some channels I need to watch are HRC and some are IRC. How can I get both of these types at the same time? I do not mind even if I have to add each channel I want manually, but I could not find a way of doing this.

On the old Samsung CRT TV I had, I could set the cable type to a different type and then watch those channels. However on the LN52A750, there is no way to do this either.

Any help would be appreciated.

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Samsung LN52A750 TV supports only one cable type at a time
by Samsung_HD_Tech Samsung staff / May 5, 2009 4:00 AM PDT

HydraCoach,

I'm not sure why transmissions are being sent on those two cable types from the same cable transmission. I don't know of any way of combining all of them into one. The older CRT may have been able to do this with an analog tuner, but the new digital tuners from what I've been able to find cannot.

--HDTech

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Others have reported the same problem

Thanks for the reply, HD-Tech. I was also puzzled why Comcast sends it that way. From what little I understand, these different transmission types are used to minimize interference between channels. I feel mixing the 2 might increase interference (perhaps someone can confirm this.)

However, that's how it is in my area. I've found several places on the Internet where people discuss this. For example, check the thread:

http://www.highdefforum.com/archive/t-47559.html

Read the 9th entry by warbird.

I've also seen someone specifically commenting on a Samsung TV's inability to get both IRC and HRC channels at the same time. I could not find anyone complaining about a different brand.

Does this mean other HD TV brands can get both types at the same time? If so, I'd be disappointed in Samsung.

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Others have reported the same problem
by Samsung_HD_Tech Samsung staff / May 8, 2009 6:14 AM PDT

HydraCoach,

I don't think mixing the two would cause interference - maybe if they were run simultaneously through the same decoder, but certainly not co-existing.

I can't speak for other brands. It was my understanding that doing a channel search through AUTO would pick up all of the possible channels, and it takes a long time for the autoprogram feature to finish.

I'm assuming you've tried the AUTO option below "Air" and "Cable", correct?

--HDTech

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