Question about Humax DRT800 DVD Recorder

2 Answers

My humax drt800 is only responding to the remote intermittently. I've changed batteries and tested different remotes. The remote is fine. The problem seems to be with the receiver in the dvr not getting the signal.It will work for a few times then stop responding, then 10 minutes later work for a few pushes again. My other humax units are getting the signal from the same remote Please help

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  • ppabob Oct 11, 2010

    I am somewhat mechanical so I suppose I can try to replace the IR receiver. Do you know what the cost would be? The unit is a lifetime Tivo unit, so I would like to fix, if possible.

  • ppabob Oct 11, 2010

    It is way out of warranty. The model number is drt400.

  • ppabob Oct 11, 2010

    yes, USA

  • ppabob Oct 14, 2010

    Your solution deals with the remote being the problem. The remote has been tested completely and is fine.

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2 Answers

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  • Master
  • 1,622 Answers

Hello,
Common faults are: some buttons not working, not working at all, corroded battery terminals. Often buttons are sticky because of some dirt accumulated over the years from the sticky little hands of your kids?
The hardest part of repair is often to open the covers. You do not need much experience in electronics repair to repair a remote. Also it is perfectly safe as there is no way to get an electric shock as they work with batteries.


step 1Test your remote with Digital Camera
Check your batteries first or buy new batteries. Once you have good batteries, you can test with a digital camera by pushing the buttons and having camera on and pointing to the infrared led. You should see red light if the remote is working. If no light comes up you obviously have a dead remote but do not despair and procede to the next step

step 2Open the remote control but there is a catch or a few catches.
Remove the screws if any. Sometimes screws may be hidden under a sticker or rubber feet. Often there are no screws at all but just plastic catches hidden so you have to be clever to open it without breaking the case. Use something blunt and flat toclick the covers open. This is often a challenge but should not be too difficult.

step 3Take a picture of every phase so you remember how to re-assemble
Since you are using a digital camera you might as well take pictures of the disassembly so re-assemly will be easier.

step 4Pull everything apart
Did you take a picture of the keyppad layout? Sometimes keypad is just one rubber membrane but sometimes the keys fall away like pieces of a Lego puzzle. And if the buttons are marked with numbers and functions you may struggle to re-assemble them in right order? Use a small plastic takeaway box or similar to store the bits so you don't lose parts.

step 5Inspect the circuit board and repair dry joints
Remotes are often dropped on the floor and may develope dry joints on the battery contacts or circuit board. Inspect the contacts and circuit board under good light with a magnifying lense or if lucky you might have a microscope or just a very good eyesight? Solder all suspicious joints. If there is a sign of water damage you can use methylated spirits and toothbrush to...

step 6Wash the covers and the buttons
Use a smal bowl or similar to wash and contain all the parts so you don't lose bits down the drain. Use old toothbrush to clean all button holes and buttons. Warm water with dishwash liquid does the job. Take particular care with those small buttons and clean them properly. If you can leave the bits to soak overnight they come clean easy. Ultrasonic cleaner would be goo...

step 7Rinse, drain and dry the parts
Rinse with warm water. Use a drainer to contain all the parts without losing small bits down the drain. As extra security use sink plug. Dry with a paper towel. Wipe the buttons dry individually as they may still have some dirt which makes them sticky when in use.

step 8Repair case and re-assemble
If there is damage to the case or buttons you need to do the required repairs. Use hot glue or super glue depending on fault. Let dry overnight if you had to glue something. Re-assemble bits in reverse order and make sure you have the buttons in right place and right way around. Small nicks and dents on plastic cover can often be repaired by heating carefully with a h...

step 9Test with Digital Camera
Test every button as before. Sometimes you have to push two remote buttons simultaneously as with recording buttons . Once you have completed test with your camera you can use the remote.
Thats it, I hope you got it going again?

Posted on Oct 12, 2010

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  • Master
  • 2,777 Answers

Yes this indicates a failed I/R received on the DVR. It is quite difficult to replace, nigh impossible if you have never done repairs like this before.

Have you done electronic repairs like this before, including soldering and removing circuits? Please let me know and I can help you find the part, otherwise I would suggest you either get it repaired by Humax which may be expensive, or just replace the DVR. Unless it's under warranty of course, then we want to claim it under warranty...
Thanks
Tim

Posted on Oct 11, 2010

  • Tim Grayson
    Tim Grayson Oct 11, 2010

    If it is still under warranty they will transfer your lifetime tivo subscription to the new one, are you certain it is not under warranty? If so please let me know, along with the model number of the machine and I will try to find the receiver for you.

    Thanks
    Tim

  • Tim Grayson
    Tim Grayson Oct 11, 2010

    Hmm, not much of any parts available for this unit. What country are you in, the USA? It looks like the only contact information for this company is overseas.

    Let me know here,
    Tim

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