Author Topic: IR Emitter for remote  (Read 225 times)

Offline DavidC

IR Emitter for remote
« on: January 14, 2020, 07:31:57 AM »
My Onkyo remote stopped working and I suspect the IR emitter is faulty, where can I order a IR emitter online and are they universal? Failing that where can I get a Onkyo remote from?

Offline chrisc

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Re: IR Emitter for remote
« Reply #1 on: January 14, 2020, 08:16:26 AM »
If its the infra-red LED, these are readily available

Its polarised, so solder in the right way

On the other hand, have you ever disassembled the remote and cleaned the carbon spots and the board?  I find dust gets in and makes operation erratic.   I use alcohol.  The trick is getting it apart without breaking it

One supplier who comes to mind is Mantech



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Offline DavidC

Re: IR Emitter for remote
« Reply #2 on: January 14, 2020, 03:39:58 PM »
If its the infra-red LED, these are readily available

Its polarised, so solder in the right way

On the other hand, have you ever disassembled the remote and cleaned the carbon spots and the board?  I find dust gets in and makes operation erratic.   I use alcohol.  The trick is getting it apart without breaking it

One supplier who comes to mind is Mantech


The red LED on the remote functions when the buttons are pressed but when I check the emitter there is nothing coming from it ( I used my cellphone camera to check).

Offline chrisc

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Re: IR Emitter for remote
« Reply #3 on: January 14, 2020, 09:32:43 PM »
The LED needs about 2 volts to make it illuminate.  Put a meter across the terminals
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Offline Hi-Phibian

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Re: IR Emitter for remote
« Reply #4 on: January 14, 2020, 09:52:28 PM »
The red LED on the remote functions when the buttons are pressed but when I check the emitter there is nothing coming from it ( I used my cellphone camera to check).


I am not sure this test is still valid.   My current mobile phone does not show up working remote LEDs.


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Offline Wim

Re: IR Emitter for remote
« Reply #5 on: January 14, 2020, 10:23:31 PM »
My last remote repair (marantz) there was a transistor driving the ir led. The path from the ic output to the transistor base was open in my case. Donít know how electronically minded you are but check first were is the led driven from. It could be anything but I would not start at the led. I would measure about a bit with a dvm.

How likely is the ir emitter to fail? They seem pretty robust?

Offline DavidC

Re: IR Emitter for remote
« Reply #6 on: January 15, 2020, 07:23:42 AM »

I am not sure this test is still valid.   My current mobile phone does not show up working remote LEDs.


.
I did check other remotes and the IR shows up on my mobile camera.

Offline DavidC

Re: IR Emitter for remote
« Reply #7 on: January 15, 2020, 07:26:09 AM »
My last remote repair (marantz) there was a transistor driving the ir led. The path from the ic output to the transistor base was open in my case. Donít know how electronically minded you are but check first were is the led driven from. It could be anything but I would not start at the led. I would measure about a bit with a dvm.

How likely is the ir emitter to fail? They seem pretty robust?
Will test with a multi meter tonight, the red indicator LED on the front appears to be on the same path as the IR LED but I could be mistaken. Will check.

Offline resham

Re: IR Emitter for remote
« Reply #8 on: January 15, 2020, 09:10:01 AM »
What model is the unit and/or remote?
Thanks
Resham

Offline DavidC

Re: IR Emitter for remote
« Reply #9 on: January 15, 2020, 09:29:47 AM »
What model is the unit and/or remote?
It  is a TH-NR626.

Offline chrisc

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Re: IR Emitter for remote
« Reply #10 on: January 15, 2020, 12:02:11 PM »
It depends on how long the remote was in the water (?)

I supplied wireless remotes for hundreds of customers.  One old guy called me and castigated me about the poor quality remote I had supplied him the previous month.  I went around and opened it up, thinking the battery had failed.  It was damp and smelled bad inside.

He dropped it in the soup he said.  Only briefly he said
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Offline DavidC

Re: IR Emitter for remote
« Reply #11 on: January 15, 2020, 02:28:15 PM »
It depends on how long the remote was in the water (?)

I supplied wireless remotes for hundreds of customers.  One old guy called me and castigated me about the poor quality remote I had supplied him the previous month.  I went around and opened it up, thinking the battery had failed.  It was damp and smelled bad inside.

He dropped it in the soup he said.  Only briefly he said
Definitely not water or soup damage....... :)