YouView box problem

bob_richbob_rich Member Posts: 4
Hi

My BT  YouView box won’t start up. 

Powering up from the DC on switch red light comes on the left of the box
pressing on button on the remote control the BT waking up logo appears on the screen  together with the red light changing to blue and in the lower left of the screen  the letters UKTFAA  0.05 appears

No further progress to the second blue light on the right side appears. IT stays like this eventually screen goes blank blue light goes back to red and then  a few seconds later  goes to blue and BT waking up appears again It seems to be lock in the  reporting wake up mode

No hand set or set top button panel can get passed this 

checked the 12V supply all seems ok at +12V output
checked the lead to the   BT  hub  all seems OK. Also bypassed the the lead to the `bt bub with a spare one  and again no effect.

the box is a DTR-T2110   obtained in October 2015

any ideas ????

Comments

  • RoyRoy Member, Super User Posts: 17,717 ✭✭✭
    edited 1 March 2023, 12:55PM
    @bob_rich

    Option 2 initially, as this preserves your recordings. 

    Or if that does not work, as it might not, Option 5 is a Factory Reset. If the box comes back from that OK, it will be as if it had just been delivered. But better back working than not working at all.

    If Option 5 does not work, there is little more you can do. If you had a suitable disc drive handy, you could try swapping that in - installed with any existing partitions wiped off the disc, the box will do all the reconfiguration necessary - but you could probably get another box off eBay, or from CeX, for about the same money as buying one.
    ‘Have nothing in your houses that you do not know to be useful, or believe to be beautiful’ Wm Morris
  • bob_richbob_rich Member Posts: 4
    Thanks  Roy
    I followed the steps for a DTR-T2110 Maintenance mode.  First 2 steps it responded as the  instructions said but instead of offering  the maintenance mode option it just stays locked in the  BT wake up screen and then keeps trying this as before.  No maintenance options appear and on screen instructions.  

    I thinking its had it!!  But I have repaired other electronic devices  where the capacitors have failed   this very common in domestic electronics. Wonder if that is the possibility.  have measured the current consumption on the +12V DC input and it is around 500mA  and seems pretty steady

    Thanks for your help anyway  but if you have any suggestions would be happy to hear them

  • RoyRoy Member, Super User Posts: 17,717 ✭✭✭
    @bob_rich

    Sorry that didn’t work out.

    DTR-T1000s, with their internal power supplies, were notorious for having capacitors that went out of spec, but I haven’t heard this about the later models with external power supplies.

    Worth a poke about though, if you have experience diagnosing and replacing bad caps.

    Do please let us know how you get on!
    ‘Have nothing in your houses that you do not know to be useful, or believe to be beautiful’ Wm Morris
  • joneshjonesh Member, Super User Posts: 1,706 ✭✭✭
    It might be capacitor failure, but not necessarily the ones in the PSU.
    Try posting on the MyHumax forum. They have a section dedicated to DTR-Txxxx Youview boxes and some of the members are au fait with their electronics.
  • joneshjonesh Member, Super User Posts: 1,706 ✭✭✭
    I haven't got a T2110 to examine, but it is possible that they are similar to T1000s inside except for the external PSU.
    If that is the case, this thread on the MyHumax forum about replacing the capacitors in a T1000 should give you some pointers.
  • bob_richbob_rich Member Posts: 4
    hi  all

    Thanks for all the good suggestions . I have replaced all the electrolytic  capacitors in the unit
    and it still exactly the same fault.  So iy looks like  it is shot so will get a replacement
    Thanks again

    Bob
  • RoyRoy Member, Super User Posts: 17,717 ✭✭✭
    edited 2 March 2023, 3:50PM
    jonesh said:
    I haven't got a T2110 to examine, but it is possible that they are similar to T1000s inside except for the external PSU.
    If that is the case, this thread on the MyHumax forum about replacing the capacitors in a T1000 should give you some pointers.
    Pretty different, I would have thought….
    ‘Have nothing in your houses that you do not know to be useful, or believe to be beautiful’ Wm Morris
  • bob_richbob_rich Member Posts: 4
    Hi  one final point I meant to ask
    Is the programme for the box operating on the disc drive or is it in some of the memory chips?  another way to put it is the disc drive only used for recording?

    thanks in advance for any info

    Bob
  • joneshjonesh Member, Super User Posts: 1,706 ✭✭✭
    Roy said:
    jonesh said:
    I haven't got a T2110 to examine, but it is possible that they are similar to T1000s inside except for the external PSU.
    If that is the case, this thread on the MyHumax forum about replacing the capacitors in a T1000 should give you some pointers.
    Pretty different, I would have thought….
    Inside?
  • RoyRoy Member, Super User Posts: 17,717 ✭✭✭
    jonesh said:
    Inside?
    @jonesh

    You want I should take lids off? 😛


    ‘Have nothing in your houses that you do not know to be useful, or believe to be beautiful’ Wm Morris
  • RoyRoy Member, Super User Posts: 17,717 ✭✭✭
    edited 3 March 2023, 11:36AM
    bob_rich said:
    Hi  one final point I meant to ask
    Is the programme for the box operating on the disc drive or is it in some of the memory chips?  another way to put it is the disc drive only used for recording?

    thanks in advance for any info

    Bob
    @bob_rich

    There are things we can deduce; take the disc drive out of a YouView box and put in a blank unpartitioned one, and it will set the disc drive up for use, just like a factory fresh YouView box, with probably a more up to date software release than the box originally had.

    This tells us, I think, that each new software release installed must be downloaded to volatile storage, and then copied to non-volatile storage, overwriting the previous release only after the download has been checked and found OK, in a place on the box other than the disc.

    I suspect though, that the downloaded copy of the release is kept on the disc drive, or maybe reloaded there from the NV storage, ready to be loaded into RAM when the box is started from an unpowered state. This is because it takes longer to start a box in this state than just to take one out of standby, where the copy in RAM is presumably still sitting there.

    I think there is a disc copy of the software involved throughout, and not just for the initial download, because of the difference between a soft reset (clear all RAM and start up again) and an Option 2 Maintenance Mode reset, where my understanding is that a copy of the operating software is refreshed from the copy in non-volatile storage, so what is being refreshed is a non-volatile, but potentially corruptible, copy of the software, which I would imagine lives on the disc, rather than anywhere else.

    You can take the disc out of a YouView box, though, hook it up to a PC/laptop running Linux, or even one just booted off a distro, and examine its partition structure, and what’s in them. Provided you don’t write to the disc, you can pop it back into the YouView box afterwards, and it will carry on as usual.

    This is because a YouView box can recognise a disc it has made, and won’t reformat it, as it would with a foreign disc you mounted. How the box recognises its own is of course a well-kept secret 😛

    Corrections and additions to this exegesis, from within YouView or without, are welcomed.
    ‘Have nothing in your houses that you do not know to be useful, or believe to be beautiful’ Wm Morris
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