: ATSC Tuners In HDTVs (see Samsung Poll)


Pages : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 [40] 41 42

MaxHeadroom
2012-05-08, 10:30 PM
I have a Samsung LN46C530F1F that will not tune into Ottawa OMNI1, channel 60.1 (real channel 27) no matter what I've tried.

On the other hand, the 19" Philips TV in the kitchen has no problem with it. Even removing the splitter or using a distribution amp, the Sammy still can't find it during autoscan or tune to it manually.

:(

bentoronto
2012-05-09, 03:14 AM
Don't know how Samsung models are related, but my 4-year old Samsung plasma, PN42B450, is quite a bit poorer in receiving stations than my 1-year old Visio 21-inch, using the same feed.

B.

cptmds
2012-05-09, 10:09 AM
Wow...maybe bad PSIP?

My newer Samsung (from last year) has had no real trouble with bad PSIP - in my case, Global 11.1 from Sherbrooke. It wouldn't find it on autoscan, but if you punched in 11 on the TV, it would find it. Looked at the PSIP on the PC, and it wasn't pretty, but the TV managed. I think it has since been fixed, but this is at my cottage, so I haven't checked since the fall.

Maybe since it's older, it doesn't handle errors as well?

roger1818
2012-05-09, 10:34 AM
I have a Samsung LN46C530F1F that will not tune into Ottawa OMNI1, channel 60.1 (real channel 27) no matter what I've tried.

Check with Samsung to see if there is a firmware upgrade. As cptmds suggested it might be that the TV doesn't like CFMT's PSIP.

MaxHeadroom
2012-05-09, 11:23 AM
Upgraded firmware last night to no effect. What's weird is that it did pick it up when I had my antenna at grade with weak signal, but you'd think that with the antenna on the roof it wouldn't be any worse.

I read somewhere else that a hard reset of the TV might help. I'll try that next.

Dr.Dave
2012-05-09, 11:39 AM
MaxHeadroom, maybe you have a strong adjacent channel overpowering a weak one and the Samsung isn't as capable in rejecting the interference. You may be able to adjust the antenna to minimize the strong signal and/or maximize the weak signal. My Samsung has a signal quality meter that I used to adjust my antenna

HWP
2012-05-09, 11:55 AM
I'd contact the TV station's tower engineer and let them know. Sometimes the problem is at their end.

levibluewa
2012-05-09, 04:30 PM
I bought one and it went back. Traded it in for a Sony. The Sammy wouldn't find all the QAM channels that all the other sets in the house found.

Digital tuners are fickle, period. Recently the Sony tuners won't find channels if you "Add Digital Channels", but if you enter the # ... the tuner pauses and tunes the channel...then when you return to "show-hide" the sub-set of channels are listed.

Sometimes the OTA channels disappear. On one occasion the local channel had to do a reboot of their PSIP computer and the channel returned.

Good luck :)

Francois Caron
2012-05-11, 09:05 AM
This is one aspect of ATSC I REALLY hate: the channel mapping! Actual vs virtual channels? And if either number changes as it happened during the transition, your TV might not pick it up? And when you do find it, you might end up with two identical virtual channel numbers? (happened to me in Montreal)

Honestly, it was easier during the Seventies when I simply turned the freakin' dial! :p

roger1818
2012-05-15, 02:06 PM
^^^Yes, that does make things confusing for people. We are still in the state of transition however. In the long run things should stabilize and changes should be rare.

Francois Caron
2012-05-16, 01:33 PM
That could be as simple as listing both channels when you're going through the configuration list. I don't mind seeing just the virtual channels when watching TV, but I do need the physical channel numbers as a reference when I'm setting them up using the tvfool.com data, and occasionally need to eliminate duplicate channels. Displaying the channel's encoding would also help (QAM and such).

We're almost there! Despite not showing the physical channels on either set, my $200 19" Sharp LCD TV has a much simpler interface than the one on my $900 40" Sharp LED TV, and it's much better at displaying relevant program information on demand!

I'll have to check the Samsung sets out as well. In the stores, they do look amazing once you turn off the Torch mode, and most manufacturers are now pumping out affordable $200 20" LED sets as well! They make my two year old 19" LCD set look like crap! :p

Just need to sneak a TV antenna in the store. :)

majortom
2012-05-20, 10:09 AM
Neither of my 2 Samsungs (A550 and B540) can display any info on TVO. Two older plasmas (Akai and LG) can display TVO correctly.

I am on the latest firmware for both Samsungs. I heard newest Samsung tuners work and would appreciate if anyone can confirm with the model number. Samsung tuners are otherwise very fast and they show info and guide (12 hr).


I can confirm another Samsung TV, Model LN40A530P1FXZA
which doesn't display anything on TVO. Anyone with a Samsung successfully
receive TVO's EPG?

Agree it's a shame, as other than the TVO issue it's EPG is the best I've seen yet.

jihenry
2012-05-20, 12:28 PM
My Samsung (UN46C6300) works fine with TVO EPG.

majortom
2012-05-20, 01:07 PM
jihenry, what's the manufacture date? the one I highlighted says July 2008.

jihenry
2012-05-20, 04:37 PM
Samsung UN46C6300 is a 2010 model (D is 2011, E is 2012 etc.) so perhaps the newer models don't have a problem with TVO EPG.

rob50312
2012-05-28, 11:32 AM
My 2 Samsung 151 ASTC boxes from 2003 do not get a guide or even station ID from 19.1.

tgf
2012-06-05, 07:30 AM
I was searching for similar "stutter" or "jerky" issues on google with LN32A450 TV's to see if a similar issue had happened somewhere else.

I came across a number of posts about a station in Chicago (WCIU 26.1) from 2008-2009 having "a softwarefirmware problem with our encoding system that affects certain tuners". They had to upgrade their equipment to fix the problem.

The search terms I used on Google were:

WCIU 26.1 Jerky Video
WCIU 26.1 stutter

The reported issues are the same as what we are seeing with CBLT on selected tuners. The matching tuner for me is the LN32A450.

Bman72s
2012-06-05, 09:30 AM
Interesting find tgf. I too have a Samsung LN32A450 that has all the stuttering problems. My Sony KDL40D3000 is fine. It is apparent through this thread that only certain tuners are having these problems. It seems to me that someone at CBC should be able to confirm that there was a change made and at least then we will know the probable cause of the problem. Getting it fixed may be more difficult since it is not an across the board issue. I am in the market for a new TV and I would hate to base my purchase purely on whether the tuner can receive CBC properly but that may be the case.

HWP
2012-06-05, 11:47 AM
tgf

Good detective work! Maybe someone at the CBC can consult the Chicago TV station to hopefully identify the problem.

VE4PER_Andy
2012-07-11, 12:16 AM
I also use Samsung DTV OTA. I also thought it had to rescann to recover lost staions as well. But once I got all OTS stations scanned in the one time, I added them all to the favourites list, then delete the ones I don't watch, but only from the favourites list. They still remain on the channels overall list.

When I initially set up scanning it was auto for BOTH Analog and Digital. So once the favourites list is established I use the favourites list to step through channels; however there have been numerous occasions where stations have dropped off the favourites list but still are in the all channels list; simply using the CH index button on thr remote instead will access the missing channel, then using tools button can be re-added to the FAV lists. If it gets lost from the all channels list as well, then one has to manually select the "actual radiating channel # " from the keypad once the signal is back and available, this will remap to the normal virtual channel and give you the DTV info data; you will have to add to favourites again, and it will again re-appear on the all channels list.

It also appears that once setup, one can manually select a new "actual radiating CH #" and the TV goes there and does a check for DTV or analog and locks in; also remaps to virtual channel if info available and ch is DTV. Use Tools to Add to favourites again, and again the new station gets added without having to rescan all channels again.

Also check carefully when you are scanning for new stations, I detected Computer flatscreen video and it was clearly identifiable on the TV coming from someone's computer flatscreen as an RF radiated signal. Business and government are big on deregulating and doing little to protect against RFI/EMI intereference problesm so beware your flatscreen PC monitor may be monitored on someone elses normal LR flatscreen TV if they happen to scan onto the right channel number when looking for a new DTV OTA station.

I have one station I seem to detect but it doesn't give me full DTV data or analog, it simply puts an asterisk beside the CH number info on the TV screen then seems to drop to display analog snow. But the asterisk stays assigned to the CH Number info. Anyone have a explanation for that???

I also noticed that tuner sensitivities vary widely between TV's and Converters depending on MFR design.