help to id a resistor on Vestel_17IPS11__rev4 power board

[Dev Web]

hello, i need help to id this resistor circled in green on this Vestel_17IPS11__rev4 i will include a photo, i cant id it as nothing comes up when i enter them colours none have a balck at ether end from what i can tell but this one looks like it does, also if anyone could id the 5 resin dipped caps, i think iv id them but not sure they are circled in red, thank you phil.

[ReeceyBurger123]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

Hi mate what was the issue with the set again no backlight ?

[Dev Web]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

oh hi man nice to see you, ok ye the back lights did not work at all so i opened up and 3 leds had blown so i replaced and tested all worked, but when i now turn thre tv on it will flash the back leds on for a fraction of a second then there off, tv works and displays if i shine a light on it to see, i tested that resistor and those resin caps and none of them have any reading at all so i assume there the problem, but hard to id them.

[ReeceyBurger123]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

Hmm what is the Led voltage when it flashes ?

[Dev Web]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

it does the normal jump up to around 90 then falls off to around 24, the return does nothing until that the red wire power falls to 24 then the return shows 4 then slowly drops to 0 again

[ReeceyBurger123]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

Psu is fine then buddy, the Leds you used might not have been the rating I thought and have burnt out.

[Dev Web]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

ok that makes some sense then, they do only light up when 3 volts is passed they dont light up if i try 1.5 volt but im new to this so watt must matter here then, i will strip it back down and test them again to see, in the mean time are those caps i mentioned and that resistor ok not having any reading even if i take them off the board

[ReeceyBurger123]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

Or maybe order some ves315 leds off ebay they are cheap ?

[Dev Web]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

ok i will do, i will test the leds i put in and come back tomorrow and continue this thread if there working but sounds like ther not so then i will wait until iv got new leds to try, thank you so much for you time.

[ReeceyBurger123]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

Ok buddy keep us updated, also be very careful of the screen not to crack it.

[Dev Web]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

um there very expensive on ebay, i have a company accounts at all the componant surpliers in the uk, what are these leds so i can find them as putting ves315 leds shows nothing at there websites

[ReeceyBurger123]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

If not try ves400 into ebay leds for them are about £20 buddy then use the stacking method.

[Dev Web]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

iv found simlar at rs and there only o.o63 per led but they dont list the mha so not sure plus they have other even cheaper as 20 quid is to dear for me im on a very tight budget that means no food for a week if i spend 20 quid on something.

[ReeceyBurger123]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

Yeah they might smoke as you power it up, they need to have 400mha current.

[vinceroger69]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

um there very expensive on ebay, i have a company accounts at all the componant surpliers in the uk, what are these leds so i can find them as putting ves315 leds shows nothing at there websites

trying to find new leds from the likes of rs components ,mouser etc is hard as the colour is usually hard to match and also the size and amps etc, reece has the best idea use ebay for used led strips and use the stacking method reece has a youtube video on it. take a picture of the led strips used in your set i may have some out of a smashed screen sets.
https://www.youtube.com/watch?v=RxwdC7V5Ue0

[ReeceyBurger123]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

Good point Vince

[Dev Web]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

ye iv watched that video and from it i was able to unsolder tiny leds from a laptop and solder them without melting them onto the strip so no need to stack, also they have evry colour at rs iv checked i can get 2700k upto 7000k and white is usualy 7000k, i cant aford those dear leds of ebay as i mentioned im on a very tight budget until my software company makes money, that could take years, which is why i thought i would learn how to fix tv's for some extra income as i getting quite thin LOL.

vince the led strip are the same as in that video as its the same set with the same vestel boards and setup only difference is this is rev 4 board and they took some caps out and replaced it with some kind of stealth chip that is a trasistor with the middle leg cut off so what ever those leds are i have the same.

[vinceroger69]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

Regarding new leds then im not sure im like reece use recycled ones from old led strips there are various posts on this forum regarding trying new leds etc i dont think anyone has really found any that work/last im not sure what reece thinks regarding sourcing new ones?

[ReeceyBurger123]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

I have only ever used recycled ones buddy, finding new ones is very hard to do as they are hard to match properly

[vinceroger69]

Re: help to id a resistor on Vestel_17IPS11__rev4 power board

yes thats my findings too hence why i collect free smashed screen led tvs still well worth keeping the led strips and boards/stands etc