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90 posts

Master Geek


  Reply # 1112631 21-Aug-2014 09:37
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I haven't had this happen at all with my MTV. I'm on the modified 3.17 firmware. The only difference in my setup is I've got a VHF filter on the aerial input. Even though I only have a UHF aerial, it's still picking up VHF and what ever else. I just got a UHF/VHF diplexer, and plugged the cables in reverse. So the aerial goes into the output, and the MTV goes into the UHF.

I know when I first got the MTV I couldn't get a signal without doing this.

85 posts

Master Geek
+1 received by user: 2


  Reply # 1112678 21-Aug-2014 10:36
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fatjulio: I haven't had this happen at all with my MTV. I'm on the modified 3.17 firmware. The only difference in my setup is I've got a VHF filter on the aerial input. Even though I only have a UHF aerial, it's still picking up VHF and what ever else. I just got a UHF/VHF diplexer, and plugged the cables in reverse. So the aerial goes into the output, and the MTV goes into the UHF.

I know when I first got the MTV I couldn't get a signal without doing this.

Same here.  The MTV does not have a great UHF front end compared with say Panasonic, Samsung or Sony.  It's easily overloaded with out-of-band and isn't very sensitive.  I needed a UHF-only aerial and a GME UHF filter/amplifier to get a good enough signal.

I'm on Auckland's north shore (using the Waiatarua transmitter).  What part of the country are you fatjulio?

72 posts

Master Geek
+1 received by user: 14


  Reply # 1112684 21-Aug-2014 10:50
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fatjulio: I haven't had this happen at all with my MTV. I'm on the modified 3.17 firmware. The only difference in my setup is I've got a VHF filter on the aerial input. Even though I only have a UHF aerial, it's still picking up VHF and what ever else. I just got a UHF/VHF diplexer, and plugged the cables in reverse. So the aerial goes into the output, and the MTV goes into the UHF.

I know when I first got the MTV I couldn't get a signal without doing this.


Could you draw a diagram of this so that I could try it?

Thanks

90 posts

Master Geek


  Reply # 1112739 21-Aug-2014 11:57
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I'm in central Auckland, so using Waiatarua.



Dishtv sell a dedicated thingy to do this, a UHF band pass filter http://www.dishtv.co.nz/vmchk/Amps-Filters.htm

72 posts

Master Geek
+1 received by user: 14


  Reply # 1112841 21-Aug-2014 14:28
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Thanks for the diagram, I've already got a band pass filter, so I'm guessing this won't help at all.



929 posts

Ultimate Geek
+1 received by user: 39


  Reply # 1112986 21-Aug-2014 17:29
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My father bought a second MagicTV as he thought the first was going faulty in some way - it was a little depressing when the second unit had the same problem.

Are you saying this is happening with the 3700 too?

I haven't had this happen at all with my MTV. I'm on the modified 3.17 firmware. The only difference in my setup is I've got a VHF filter on the aerial input.

I haven't been having this happen with my 3600 and it has lots of VHF going into it.

A couple of times the picture and sound have suddenly vanished which may be the same problem coming up in a different way. I've got it plugged in with RCA cables, no HDMI.

66 posts

Master Geek
+1 received by user: 4


  Reply # 1112994 21-Aug-2014 17:35
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bfginger:
My father bought a second MagicTV as he thought the first was going faulty in some way - it was a little depressing when the second unit had the same problem.

Are you saying this is happening with the 3700 too?


No, he bought a second hand 3600 that had seen little use.

I haven't had this happen at all with my MTV. I'm on the modified 3.17 firmware. The only difference in my setup is I've got a VHF filter on the aerial input.


Not my comment :-)


191 posts

Master Geek
+1 received by user: 5

Trusted
MagicTV

  Reply # 1113042 21-Aug-2014 18:07
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cb1:
Could it be that the signal generator is giving you a perfect signal which may be different to the real signal being transmitted? So you could try connecting to an aerial.


Yes, I can only loop play the same TS for debugging.  Doing this for fixing broadcast/transmission issues makes things difficult.  I'm not in New Zealand, so connecting to an aerial does not help.




LUMIN Network Music Player, Magic TV New Zealand and Australia firmware lead

85 posts

Master Geek
+1 received by user: 2


  Reply # 1113203 22-Aug-2014 00:29
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fatjulio: I'm in central Auckland, so using Waiatarua.

OK.  So it looks unlikely to be down to firmware version or transmitter or out-of-band signal.
The last thing my tuner does 3 nights a week is on TV3, another 3 nights is on 10 and one night is on 1.  No pattern there.

My reproducible, regular, 24-hour shutdown makes me wonder if a timer overflows and various bad stuff depends on just what is stored above that address...  That doesn't explain why many of us have suddenly started to experience the shutdown after resume from standby.

Presumably 3600s sold into other markets aren't encountering these problems (or is this what drove the development of the 3700?).

Any other ideas?

66 posts

Master Geek
+1 received by user: 4


  Reply # 1113223 22-Aug-2014 07:54
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JefWright:
OK.  So it looks unlikely to be down to firmware version or transmitter or out-of-band signal.
The last thing my tuner does 3 nights a week is on TV3, another 3 nights is on 10 and one night is on 1.  No pattern there.


Could it be down to EPG data as wouldn't this be the same across all channels?

929 posts

Ultimate Geek
+1 received by user: 39


  Reply # 1113881 23-Aug-2014 07:32
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Is there a specific date this problem started? If we knew when it started wouldn't it be possible to trace what broadcasting change started it?

As some people are having problems with HDMI after restart is there anyone having this problem who doesn't have HDMI plugged into their 3600? I don't have HDMI plugged into the Magic TV and it hasn't had the restarting problem.


85 posts

Master Geek
+1 received by user: 2


  Reply # 1114342 24-Aug-2014 00:25
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I can't remember a start date for my rebooting.  It was a while ago.  I think it slowly got more frequent.

I incorrectly identified a 24-hour pattern in black screen-then welcome screen then no HDMI re-boots after turning off standby mode.  After doing this twice around 9pm it rebooted before 6pm last night.

I've done a factory reset and reinstated all scheduled recordings today.  Lets see if that fixes the restart problem again (stupid curiosity!).

Rather than asking "what random data has come in over the air in the last 24 hours to cause this problem?", the question I would ask (if I were in a position to resolve this problem) is "what happens in the first few seconds after resuming from standby?".  There must only be a small number of things that can happen and we can see that quite a few of those do happen before it all goes tits up.  Something somewhere is presumably overflowing or being mis-directed to corrupt something else.  Inadequately checked EPG data could overflow just as easily as any thing that is saved as standby is initiated.

bfginger:  Are you using S-video, Composite video or YPbPr output?  I'd rather not have to step back to SD with S-video or composite but YPbPr should be pretty much as good as HDMI.  I gather I'll need 5 off coax for 3 vid + 2 Audio?

I won't change anything for a few days to make sure everything is stable.

929 posts

Ultimate Geek
+1 received by user: 39


  Reply # 1114379 24-Aug-2014 05:49
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I'm using YPbPr. The five RCA cables came in the Magic TV box.

72 posts

Master Geek
+1 received by user: 14


  Reply # 1120374 2-Sep-2014 11:27
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Hi Wklie,

Is there any chance for a resolution to this issue?  I had a full restart over the weekend, and any number of the mini black screen ones, all using the beta firmware.

I realise that you are not in the country and therefore it is hard for you to replicate this problem, but it must be solved, as the devices are not longer "fit for purpose".

If it can't be solved, then what options do we have, e.g. upgrades etc.

Kim



412 posts

Ultimate Geek
+1 received by user: 30


  Reply # 1120384 2-Sep-2014 11:38
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kimxk: Hi Wklie,

Is there any chance for a resolution to this issue?  I had a full restart over the weekend, and any number of the mini black screen ones, all using the beta firmware.

I realise that you are not in the country and therefore it is hard for you to replicate this problem, but it must be solved, as the devices are not longer "fit for purpose".

If it can't be solved, then what options do we have, e.g. upgrades etc.

Kim



I reinstalled firmware 3.18 on 15/8 as it seems to be pretty stable other than the restart issue. I'm now leaving my box on 24/7 and have had no restarts or blank screens since. It doesn't solve the restart issue but at least the box is stable till the problem is sorted.

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