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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
Toshiba ir faulty

 

 


Jshembo
New User

Feb 7, 2018, 7:43 PM

Post #1 of 7 (3268 views)
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Toshiba ir faulty Can't Post

Hi.
I’m new to the site. I’ve been struggling with a toshiba tv for a while. Hope someone can help.
So my remote stopped working. Tv is a Toshiba 40TL868. Tried new batteries obvs, tried the camera check and I can see the ir working. Also tried a one for all with no luck. So I've taken the tv apart after looking online for a fix. I've got the ir board V28A001326A1 out. Trying to buy a replacement but had no joy. Does anyone know where an which ir sensor is fitted to this board, and where I could get one? I can solder so that's not a problem. Or if there’s anything else I could try.

Seems to be no dry joints on it. Or is there any other checks I can do etc. I’m not a tv engineer, but I do work in electronics.

Thanks for your time.

Jamie


(This post was edited by Jshembo on Feb 7, 2018, 7:47 PM)



Jshembo
New User

Feb 7, 2018, 7:50 PM

Post #2 of 7 (3262 views)
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Re: [Jshembo] Toshiba ir faulty [In reply to] Can't Post

https://spares2repair.co.uk/toshiba-40tl868-ir--pe1003-a-1-v28a001326a1
This link shows the board at the top. And the ir sensor.

Jamie


jts1957
Veteran


Feb 7, 2018, 10:26 PM

Post #3 of 7 (3262 views)
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Re: [Jshembo] Toshiba ir faulty [In reply to] Can't Post

Remote receiver should have three pins - Ground / B-Plus and Signal. You can easily measure b-plus, but signal is most easily observed with a scope. If B-plus & Signal are present, Main board is next most likely.


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Location: Far, Far Away


Jshembo
New User

Feb 8, 2018, 7:14 PM

Post #4 of 7 (3251 views)
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Re: [jts1957] Toshiba ir faulty [In reply to] Can't Post

Thanks for your reply. Could you break it down a bit for me please. I’ve got a multi meter. And I’m used to taking voltage readings or resistance. Not sure what I’ll be looking for etc?

Thanks


jts1957
Veteran


Feb 8, 2018, 8:30 PM

Post #5 of 7 (3251 views)
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Re: [Jshembo] Toshiba ir faulty [In reply to] Can't Post

SAMPLES




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Location: Far, Far Away

(This post was edited by jts1957 on Feb 12, 2018, 10:23 PM)


Jshembo
New User

Feb 12, 2018, 8:28 PM

Post #6 of 7 (3179 views)
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Re: [jts1957] Toshiba ir faulty [In reply to] Can't Post

Don’t think I’m in the right place. That pic don’t mean anything to me lol
Do you know what type of ir sensor it is? And where I can buy one? I’ll just change it and see if it works.
I was just trying to save a bit of money an not send it to a tv repair shop.
Thanks for trying to help me tho.
Jamie


jts1957
Veteran


Feb 12, 2018, 10:20 PM

Post #7 of 7 (3174 views)
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Re: [Jshembo] Toshiba ir faulty [In reply to] Can't Post

https://learn.adafruit.com/...testing-an-ir-sensor

https://www.mouser.com/...CompareProducts.aspx


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Location: Far, Far Away

 
 
 


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