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Kooda replied to Soniq E40W13A-AU Backlight Problem. Help a noob out

in Troubleshooting TVs and Video Sources

05-16-2016, 11:36 PM
Re: Soniq E40W13A-AU Backlight Problem. Help a noob out

It is done! So god damn happy. After following your tut,I managed to track down the faulty led and fix it, although I simply had to bridge it with solder as I have no spare led's and such, but there is no loss of brightness at all and it's operating perfectly! Happy days

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Kooda replied to Soniq E40W13A-AU Backlight Problem. Help a noob out

in Troubleshooting TVs and Video Sources

05-16-2016, 06:58 AM
Re: Soniq E40W13A-AU Backlight Problem. Help a noob out

Okay so a tiny bit more progress so far. I've taken then panel apart to inspect the led's. Seems I was mistaken and only the bottom half of the backlight (two lengths/four individual strips) are lighting up momentarily on startup. Also, not sure if this means anything but, if i short the led terminals of each strip, it will light up different strips and different configurations. They are all able to be lit up besides one segment. Is it safe to say this is the culprit? Got a lil video if my explanation is a bit hard to understand....

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Kooda replied to Soniq E40W13A-AU Backlight Problem. Help a noob out

in Troubleshooting TVs and Video Sources

05-16-2016, 03:24 AM
Re: Soniq E40W13A-AU Backlight Problem. Help a noob out

Okay, got some high res pics of the boards if anyone wants to see if anything stands out. Also, I'm assuming the led driver is built in to the power board, and the t-con board is the long board down the bottom? Would a faulty t-con cause backlight problems?...

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Kooda replied to Soniq E40W13A-AU Backlight Problem. Help a noob out

in Troubleshooting TVs and Video Sources

05-15-2016, 10:38 PM
Re: Soniq E40W13A-AU Backlight Problem. Help a noob out

So I'm fine to measure such high voltages with a standard DMM?

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Kooda replied to Soniq E40W13A-AU Backlight Problem. Help a noob out

in Troubleshooting TVs and Video Sources

05-15-2016, 10:15 PM
Re: Soniq E40W13A-AU Backlight Problem. Help a noob out

Yep will do budm. Would have the capacitors discharged by now (10-12 hours or so)? If not is shorting the caps with a screwdriver generally frowned upon? Don't have any resistors etc on hand

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Kooda replied to Soniq E40W13A-AU Backlight Problem. Help a noob out

in Troubleshooting TVs and Video Sources

05-15-2016, 11:33 AM
Re: Soniq E40W13A-AU Backlight Problem. Help a noob out

I'll definitely take some hq shots tomorrow as to give you a better idea of the components. I did measure the voltage with the led's disconnected and it remained at 12v, well at least what I think is the led power wiring ( 2 pairs of wires running through the chassis, didn't light up on startup when unplugged).

Also no, it doesn't appear to have marked voltages for the leds on the board, unless they're on the underside?

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Last edited by Kooda; 05-15-2016, 11:35 AM.
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Kooda replied to Soniq E40W13A-AU Backlight Problem. Help a noob out

in Troubleshooting TVs and Video Sources

05-15-2016, 11:11 AM
Re: Soniq E40W13A-AU Backlight Problem. Help a noob out

Okay, so I measured 12v at the led pins when turned on, until the backlight flashes for that one second and it drops down to 0. Unplugged the led's and got the same result. Measured voltages a cable running from psu to main board. All seem to be okay barre one odd one out which was 4v (everything else was 5v or 12v)

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Kooda replied to Soniq E40W13A-AU Backlight Problem. Help a noob out

in Troubleshooting TVs and Video Sources

05-15-2016, 06:36 AM
Re: Soniq E40W13A-AU Backlight Problem. Help a noob out

Haha sounds fun. Am I wrong in thinking that because the backlight still functions, albeit for less than a second, that it isn't a failure of the LED's themselves? Is there a way I could mabye run a jumper wire and see if the LED circuit is still intact and potentially functional?

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Kooda started a topic Soniq E40W13A-AU Backlight Problem. Help a noob out

in Troubleshooting TVs and Video Sources

05-15-2016, 04:55 AM
Soniq E40W13A-AU Backlight Problem. Help a noob out

Hey guys! So yesterday my telly decided to pack it in. No signs of anything going wrong before hand. On startup it will play the startup sound and show the startup screen for a split second then fades to black. The image is then visible using the flashlight technique, so, definitely backlight I'm assuming? All caps etc. look to be in good enough condition and no discolouration anywhere. I've included a couple pics of the board arrangement etc. nt sure how much help they will be though. Please help, I'm gunna lose my mind without having a telly to come home to! TIA....

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Kooda replied to Hisense hls106t69pz? 42" dead, help please!

in Troubleshooting TVs and Video Sources

10-01-2014, 02:48 AM
Re: Hisense hls106t69pz? 42" dead, help please!

Bump, anyone?

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Kooda started a topic Hisense hls106t69pz? 42" dead, help please!

in Troubleshooting TVs and Video Sources

09-30-2014, 09:19 AM
Hisense hls106t69pz? 42" dead, help please!

So, got a Hisense hls106t69pz, which died on me recently. It used to have a problem where on hot days, the screen would go green and purple, so I left the case off and replaced the capacitors, which seemed to have fixed it, but I guess not!

Anyways, before it gave up for good this time, the screen went green/purple and blocky. Now when you try and turn it on you get the flashing light like it's trying to boot up, then the speaker emits some white noise. Also there is a buzzing noise coming from the power supply when trying to turn it on.

Tested all the power outputs...

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Kooda replied to New Members - please post your introductions here

in Announcements & Related News

09-29-2014, 07:35 AM
Re: New Members - please post your introductions here

Howdy! My name is Patrick, 20 years old and from South Australia. Looking to learn how to fix my poxy Hisense goddammit!

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Soniq E40W13A-AU Backlight Problem. Help a noob out

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Hisense hls106t69pz? 42" dead, help please!

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