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Chat Area => General Discussion Area => Topic started by: CaptainZok on 29 October 2010, 15:55:19

Title: TV Remote
Post by: CaptainZok on 29 October 2010, 15:55:19
The tv remote has stopped working, well it's still flashing the ir diode but the tv doesn't respond.
Tv will work with the MCE remote to switch on/off but not the dedicated tv remote.
On comparison the tv remote seems brighter than the MCE which is working.
Any suggestions?
Batteries changed already and battery connections cleaned with a file.
Title: Re: TV Remote
Post by: Chris_H on 29 October 2010, 17:04:46
When you say it's flashing the IR diode I presume you mean that the LED on the TV flashes when you press a button on the remote?  IR is invisible.

Does the remote have a switch for TV/VCR etc?  If so it could be sending the wrong codes if it's moved.
Title: Re: TV Remote
Post by: Plomien on 29 October 2010, 17:11:04
use your camera phone to look at the IR sender to see if it flashes :y
the LED is just a flashing light
Title: Re: TV Remote
Post by: Amigo on 29 October 2010, 18:02:34
Switch the telly off & have a beer John! 8-)
Title: Re: TV Remote
Post by: Mysteryman on 29 October 2010, 18:22:49
It's f**ked. Buy a new one.
Title: Re: TV Remote
Post by: Debs. on 29 October 2010, 18:27:05
Quote
Buy a new one.

 :y A three musketeer`s type: "One for all" ;D
Title: Re: TV Remote
Post by: CaptainZok on 29 October 2010, 19:06:51
Quote
use your camera phone to look at the IR sender to see if it flashes :y
the LED is just a flashing light

Yes that's what I meant the sender is an ir emitting diode is it not.
Title: Re: TV Remote
Post by: Plomien on 29 October 2010, 20:11:08
its fubar then time to buy a new one
Title: Re: TV Remote
Post by: Debs. on 29 October 2010, 20:40:51
Quote
Quote
use your camera phone to look at the IR sender to see if it flashes :y
the LED is just a flashing light

Yes that's what I meant the sender is an ir emitting diode is it not.

If you have a CCTv camera (house/garden security type) available, then with any visible lights off, you should be able to clearly check the remote`s IR diode output via the camera/CCtv.; as such 'cheap' CCD camera`s are surprisingly sensitive to IR light...the output will show up as a bright flickering beam when any button is pressed on the remote. ;)
Title: Re: TV Remote
Post by: Plomien on 29 October 2010, 20:43:50
Quote
Quote
Quote
use your camera phone to look at the IR sender to see if it flashes :y
the LED is just a flashing light

Yes that's what I meant the sender is an ir emitting diode is it not.

If you have a CCTv camera (house/garden security type) available, then with any visible lights off, you should be able to clearly check the remote`s IR diode output via the camera/CCtv.; as such 'cheap' CCD camera`s are surprisingly sensitive to IR light...the output will show up as a bright flickering beam when any button is pressed on the remote. ;)
same as a mobile phone camera ;)
Title: Re: TV Remote
Post by: Marks DTM Calib on 29 October 2010, 20:49:25
Less common these days but, some years ago it was not uncommon for the oscillators to go wappy (they are ceramic resonators).

The IRDA still outputs but the bit rate is wrong.
Title: Re: TV Remote
Post by: Debs. on 29 October 2010, 20:51:57
Quote
same as a mobile phone camera ;)

 :-[ :-[ Note to self: read the prev. posts :-[ :-[

 ;)..... ;D
Title: Re: TV Remote
Post by: CaptainZok on 29 October 2010, 21:33:19
Quote
Less common these days but, some years ago it was not uncommon for the oscillators to go wappy (they are ceramic resonators).

The IRDA still outputs but the bit rate is wrong.
Sounds like TG will be attacking it with the soldering iron then. ;D
Title: Re: TV Remote
Post by: CaptainZok on 29 October 2010, 21:34:34
Quote
Quote
Quote
use your camera phone to look at the IR sender to see if it flashes :y
the LED is just a flashing light

Yes that's what I meant the sender is an ir emitting diode is it not.

If you have a CCTv camera (house/garden security type) available, then with any visible lights off, you should be able to clearly check the remote`s IR diode output via the camera/CCtv.; as such 'cheap' CCD camera`s are surprisingly sensitive to IR light...the output will show up as a bright flickering beam when any button is pressed on the remote. ;)
Turning on my laptops webcam works for me. :y
Title: Re: TV Remote
Post by: CaptainZok on 29 October 2010, 22:23:19
The resonator is coded as 400CM630 but what value will that be?

It looks identical to this but the coding is different obviously.
http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=5266097
Title: Re: TV Remote
Post by: Turk on 30 October 2010, 01:34:12
Remember the days when we pressed the buttons on the TV ?   
These days it's  " :o[size=16].M.G[/size]...the remotes broken !!"   ;D
Title: Re: TV Remote
Post by: CaptainZok on 30 October 2010, 01:37:41
Unfortunately, the manufacturers stopped putting most of the controls on the actual set years ago so the remote is pretty much essential if you want to do more than change channel or alter the volume these days.
Title: Re: TV Remote
Post by: Kevin Wood on 30 October 2010, 01:38:14
Quote
The resonator is coded as 400CM630 but what value will that be?

It looks identical to this but the coding is different obviously.
http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=5266097

Looks like a Murata part but as you say they appear to have changed their part number format and I can't find the old style explained. Hazard a guess at 4MHz? :-/

Kevin
Title: Re: TV Remote
Post by: CaptainZok on 30 October 2010, 02:19:30
Quote
Quote
The resonator is coded as 400CM630 but what value will that be?

It looks identical to this but the coding is different obviously.
http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=5266097

Looks like a Murata part but as you say they appear to have changed their part number format and I can't find the old style explained. Hazard a guess at 4MHz? :-/

Kevin
Cheers Kev I was thinking along the 4MHz lines myself, I'll have a wander to see Mrs Modern Radio tomorrow see what she has in stock. She'll probably know what it is, she usually does. ;D
Title: Re: TV Remote
Post by: Dishevelled Den on 30 October 2010, 08:10:22
Quote
Remember the days when we pressed the buttons on the TV ?   
These days it's  " :o[size=16].M.G[/size]...the remotes broken !!"   ;D

I remember televisions before the onset of those new fangled buttons - they had stout rotary controls to carry out all functions.

If there was a 17 inch screen in the house you weren't doing too  badly, a 21 inch - you were getting there, and a 24 inch - you'd arrived.

Ecko, Murphy and Bush are some of the names I remember.
Title: Re: TV Remote
Post by: Chris_H on 30 October 2010, 09:15:12
Quote
Quote
Remember the days when we pressed the buttons on the TV ?   
These days it's  " :o[size=16].M.G[/size]...the remotes broken !!"   ;D

I remember televisions before the onset of those new fangled buttons - they had stout rotary controls to carry out all functions.

If there was a 17 inch screen in the house you weren't doing too  badly, a 21 inch - you were getting there, and a 24 inch - you'd arrived.

Ecko, Murphy and Bush are some of the names I remember.
Ahh yes!!  Required about two pounds of pressure to change channel and you had to keep your knuckles out of the way of the button coming out or it would hurt you.  You had to wash your hands before re-tuning just to get a grip on the knobs!
Title: Re: TV Remote
Post by: Chris_H on 30 October 2010, 11:18:30
I've just remembered it was turret tuners before that.  Anyone remember those?
Title: Re: TV Remote
Post by: tidla on 30 October 2010, 21:45:24
throw it across the room and forget about it. later pick it up and try again forgetting its broken.
throw it across the room again,this time when it hit the wall and explodes into little bits..
buy a new one :)
Title: Re: TV Remote
Post by: Debs. on 30 October 2010, 21:54:42
Quote
I've just remembered it was turret tuners before that.  Anyone remember those?

With vernier rings for coarse and fine tuning!

My first B & W Tv. had selector buttons for 405 VHF and 625 UHF.....although the latter; with that new-fangled colour business will never take off! ;D
Title: Re: TV Remote
Post by: CaptainZok on 01 November 2010, 10:35:43
Update.
He's only gone and done it again, Changed the resonator and bingo works first time. The man's a genius.
Cost of replacement £45, cost of repair parts £1 so a decent saving there.
Thanks Mark, Kev and everyone else for your help and advice. :y :y