Tip & How-To about Audio Players & Recorders


Most of the present electronic devices remote controls are of infrared light emitting diode types. There are ultrasound emitting types are also there, but are rarely used now. With older TVs will have these types of remote controls are with it. The difference between these are; the infrared remote controls should be used within the visinity of the receiver to which is used, and the ultrasound can be used without in visinity of these devices. It can even controlled from an other room of your home. They are mainly used with some audio equipements like BOSE audio systems even now. Let me here describe some of the most common faults that can be orrured with infrared type remote controls.
Take the case of one amoung them from dead condition. You must first of all check its cells for voltage. It is best to work with new cells in its battery comapartment. Check the battery contacts at its battery compartment first, for any accumulation of dust or rust. Rust may occur due to prolonged use of leakey batteries in it. If noted, clean it with a pice of smooth type sandpaper, and check it with after. If it does'n help you go further. Check its infrared emission. You can do it very easly, by using a cellphone with camera option, after making the cellphone to camera mode. Place the remote controls' front end towards the lens of the cellphone camera, switch it on, and press each button on the remote handset. If there is any infrared emission, your cellphones' screen can indicate you by showing its images. It may be interrupted, although if it is there, the infrared LED and other circuits in your remote control is working well and the infrared sensor inside your TV which senses these signals may be faulty, and should be replaced. If you even not see any of these images said above, you have to open your remote control.
Just do it with patience and care, not to break its plastic case while working. These will have slip fit type fixations at its side and should be located carefully. Use the blade of a small screwdriver to push these locks inwards ; by placing it in between the slits of these cabin joints. Do this work with care, and self, alone, without taking advice from any other, because so many will have so many ideas and finally all of them together with may spoil it.
Just lcoate the slip fit locks one by one, and release it with gentle press inward and open it. On opening, the device will split into four parts. upper and lower cabin pieces, a printed circuit board with four or more components direltly soldered to it, and one touch pad. Clean the surfce of the printed circuit board with a piece of smooth cloath, dipped in either rectified spirit or medical quality turpentine. Never use any hard solvets like petrol or thinner. Check it for any loose solderings at terminals of the components sodlered to it. If it found loose, resolder it by applying a little more solder. It is best to replace the crystal oscilltor and infrared LED. Close it and check. if this does not help you, it is best to buy a new one of same type and number.

Posted by on

Audio Players & Recorders Logo

Related Topics:

Related Questions:

1 Answer

Grinding remote control TP2 not working

light at the remote control flashes; does not mean it works properly. You have to check whether it emits infrared rays out from its front; which activates the TV. The indicator light blinks; means the remote control is working, and the the batteries are good. That's all. The infrared light that emits from its front side [infrared LED] is not visible to human eye. It can be detected by an electronic camera. If infrared ray emitting LED is faulty, the TV won't respond to remote control.
Check the remote control for its infrared emission. Check it by pressing all the keys. You can detect the presence of infra-red emission from the remote control, using a cell-phone camera. If you wish to get more details about how to check a remote control, please visit this site. One among the posts has details about it. Surf the site with patience. In some cases, the remote control might need to clean.
Search the site by type in this key phrase "how to test a remote control "in the "search box at the top right of the display window of the Homepage" to get the related post quickly.
https://www.youtube.com/watch?v=jsSCNCW3IbQ [open and clean]
https://www.youtube.com/watch?v=Qp-l1uh-5gE [open and clean]

Jul 08, 2016 | Televison & Video

1 Answer

I do not want to use my logitech any more, how do I disconnect it

You can repair it. The infrared emiting diode is dead, replace it with a new infrared diode. You can buy it in electronic components shops.

Sep 01, 2014 | Logitech Harmony One Advanced Universal...

1 Answer

RCA RCR311B Remote - none of buttons work - when pushing them the ON-OFF button at the top lights up red.

if the top light lights up, the remote controls' internal circuits are working properly. Check its infrared light emitting diode at its front, which sends infrared signals. Tthat diode may be faulty, or its soldering joints inside may got loose. Open it and check. OK.

Apr 06, 2011 | RCA RCR311B Remote Control

2 Answers

I have a sony Bravia KLV-S40A10E 4 years old.Remote controle device is no ore working. Batteries have been changed without solving the problem .. Other Remote device ( DVD-Sony ) is also not working anymore. TV works OK with amm manual functions. Sleep/timer always light red ( permanent- no flashing ) when TV is set ON Thanks for help

You just check your remote control handset for its infrared emission. There is an infrared light emitting diode [LED], in front of your remote control handset from which infrared light rays are send to your TVs infrared sensor, fitted inside it, behind the infrared window on its front panel. Infrared rays are invisible to human eye. We can check if it is there by using a cellphone with camera option.
Put the cellphone in camera mode, and place your remote control's LED side towards its lens, for about a feet away or so, and when you push its each button, you can see an image in the phones' screen. If it is there, and still your TV don't work with remote control, TVs infrared sensor inside is faulty, and needs replacement.
If there is no infrared image from your remote control, you have to buy one new remote control. OK.

Dec 18, 2010 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

My will not work with the remote any longer. I replaced that. When I manually turn power on, it takes 3 or 4 times before coming on. Then, it will turn off after about 30 seconds. ANy ideas?

There is an infrared sensor inside the tv to receive infrared signals transmitted by the infrared signal generating light emittin diode fixed on your remote control. Either the sensor inside the tv or light emitting diode in the remote controller faulty, remote function will not work. For manual operation troubles, check the wall power socket of plug of the tv is faulty, loose contact etc.

Oct 13, 2010 | Sony FD Trinitron WEGA KV-34XBR800 34" TV

Not finding what you are looking for?

4,255 people viewed this tip

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts


Level 3 Expert

5686 Answers

The Knight
The Knight

Level 3 Expert

76069 Answers


Level 3 Expert

85020 Answers

Are you an Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions