Sony KDL-40R470B 6 red blinks repair
HTML-код
- Опубликовано: 28 сен 2018
- This TV starts 3 times then turns off definitely with the front LED blinking 6 times. In this case some LEDs of the backlight are defective.
You can replace whole LED strips or single LEDs. Single LEDs can be bought from eBay, you need 3V types, 3228, anode being the smaller pad.
Also useful are a hotplate and solder paste. Solder paste can also be obtained on eBay. 
Наука
Nice work. And thank you for not blasting stupid music at me.
your fault search/solve technique is very genuine and authentic because its long term solution, not this other under handed thumbsucking crapy solution thanks
turning the backlight down fixed it for me. wow
merçi beaucoup
Good job sir thanks a lot
thank you so much sir
good job ! what about button thin horizontal line and bad color with double image? some tech talk about T-CON and cutting ckv1,ckvb1... it is true the cutting can solve the problem ? (kdl40-R470b with lsy400hm03-a02 panel )
Very helpful.
good
how to adjust voltage and current ob3350
I open up tv and check all the led. There are all fine. Did this means i have to change new main board?
Hi. Can I get the specification of LED? As well as the LED strip? Same problem with Sony KDL-43W800C 6 times red blinking
There are a lot of varieties of LED strips. When I suspect the LEDs I disassemble the TV and check what LED exctly they are using. Mostly it's 3V nominal voltage per LED sometimes 6V. They come in all sorts of formats. To find the number of a LED strip before disassembly you could try Shopjimmy or eBay, but I woouldn't rely 100% on that. Buying LEDs, measure nominal voltage of an intact LED, measure package size with a caliper, then go to Aliexpress or eBay, search for "backlight LED TV (voltage 3V or 6V) (package). Pay attention to anode cathode size , sometimes anode is the larger pad.
Hi. I have a Sony kdl-75w850c. One led was defektive which resulted in 7x blink so I replaced it. The Tv worked but I got a new issue. Half of the screen is darker the the other. The new led shines brighter than the old ones although it is 3 volts like the other leds. It is located in the middle of the upper side of the screen. The right half is darker. Is the new led comsuptioning much power which leads to shortage of voltage in the right side of the screen?
Check if the acrílic sheet is upside down. They went in one specific position. Is wider on the bottom.
I have same issue but sometimes tv starts without any problem
What voltage do you apply to check the leds?
For 3V LEDs it's about 2.6. For 6V LEDs about 5.4. (per LED). Always start at low voltage and increase slowly.
Hi, my sony kdl-40r470b got same issue. then i fixed it with replacing some faulty leds and it was working fine for several month. now i have got new symptom on the same tv, the tv keep switch on and off repeatedly. is this same issue on led backlight?
Yes probably the same problem. I would also lower the LED current by chaning the shunt resistances near the controller chip to a higher value
thank you for your kind information. i have replaced a new power adaptor but problem not solved. i will try do it as your suggestion. but can you please sharing a video how and what kind of parts to swap? thank you again
what type of back light strip can I use to change it all?
Please try shopjimmy or ebay and search for "(TV model number) LED strip"
Hey I have a XBR55X850D. The tv will turn on for an hour then turn off and blink a red light for 6 times exactly. Do you know how I can fix this? Thank you!
I have the same tv. I have been having the same problem for over 6 months. I find that it happens when watching a movie that has dark scenes from a channel like HBO or Cinemax from the HDMI input from cable box or an Android movie app Iflix . I can watch a channel like CNN or the Android RUclips app all day with no problem. I called the Sony repair here in Jakarta Indonesia, they said would have to replace the main screen, but no stock.
I have changed some settings under Picture Advanced settings: Black adjust OFF, Adv. contrast enhancer OFF. Since doing this I have been able to watch a movie, that had previously caused the TV to shut down every time a dark scene showed, completely without problems.
I have the same model & the same problem. I have a question, when power ON the TV, all then LED suppose to light up? For my TV, I notice sometimes the 3 row from bottom light up, sometimes the 4th row only, sometimes 2 row from top.
Anyway, I can see 1 LED doesn't light at all.
Yes this can happen. They are probably about to die.
@@tomtechtod9200 you mean just replace a strip LED which have 1 unit faulty LED doesn't won't fix it?
My sony kdl-48 w650d blinks 6 times but the sony logo doesn't show up when booting. I haven't gone round to check each individual led light. Does 6 times blink always tell led light strips defective?
Your model is different. In the tv from the video 6 flashes actually means main board failure, from what I remember. May be something different in your TV... LEDs is just one of the most common problems
@@tomtechtod9200 i have replaced the main board but still same problem. I suspect it's the some of the backlight LEDs. The backlight does light up before shutting down.
Hi, I replaced the led strips with new ones but I still have the same problem. The main board is also new. What could be the problem??
The same problem, you mean 6x blinking LED? As far as I remember there is not much more in this TV than one PCB and the LEDs. If got the board from eBay it might be defective. Are you sure you connected the LED strips correctly before reassembling everything?
@@tomtechtod9200 thanks for your response, I had to buy original LEDS and now the tv is working.
idea: make tv with two sets of led strips, one inactive, other active, as seems there is enough space. On the back, have switch between primary and secondary lights. Once it fails after 4 years, press switch, boom, 4 more years of use.
I have Sony 32inch tv with defective panel. My question is, can i used all the board of my Sony tv (Power supply, led driver board, tcon, mainboard)to connect to my LG 32inch display?
You could only do that if both TVs have the same panel
@@tomtechtod9200 they have the same panel in terms of screen resolution & size.
@@narvaeztiamson918 must be the same panel model number AFAIK
@@tomtechtod9200 How many led bulb does a 32inch panel has & the maximum voltage it requires to lit up all the led bulb? tnx
@@narvaeztiamson918 this depends on the panel. some have all in series, some don't some may have an edge lit display and so on. no general rule afaik
Hello tom, my found one faulty led, replaced it and now all the leds light but still tv turns on for about 10 sec then shuts off and 6 red blinks.
Maybe the driver chip was damaged? How did you test all the LEDs? With an external PSU? Did you reconnect the LED strips.?
Is this the only reason why my TV blinks red 6 times? Or there may be other faults?
6 blinks, the manual says it's the mainboard as far as I remember. I think almost everything was on only single board, so that doesn't tell us much.
Hi I've an kdl 48wd653. Can tour say me where can I buy led? And how can I find the right one? Thanks.
www.shopjimmy.com/sony-lb48009-replacement-led-backlight-strips-7-kdl-48w650d/
www.ebay.ca/itm/313702139081?hash=item490a1ac4c9:g:SRgAAOSwuANhXxOp
I wouldn't bother replacing single LEDs
i got same set same problem i checked all led lights with screen out they working as they should but still flash 6 times confusing
check the smd resistors around the LED driver chip, I've seen them getting too hot and either be defective or their solder joints are bad. the LED driver chip could then detect an open circuit and shut off. the problem can be elsewhere though as well
I've disassembled it and the paper/ plastic I've accidentally mixed up the order please could someone help!
Hi have u sorted it now
Reason behined this issue in kdl40r470b
Can you tell me what type of LED you used.
Smd led 3228
Yo cambio todas las tiras led le monto de samsun de 40 pulgadas q son iguales a la sony y quedan muy buen trabajo duran muchobmas tiempo q cambiar algunas dañadas
Correcto, es mejor cambiar las tiras por completo.
salut aide moi j'ai cherché partout sur internet comment accéder à la dalle du tv sony kdl 46ex720. car j'ai voulu changer le backlight qui a un problème. malheureusement je ne trouve pas de tuto qui explique comment ouvrir la tv et accéder aux led. si tu a un lien pour m'aider. merci
désolé, j'en ai pas. normalement c'est vissé. chaque télé est différente.
Replacing a single LED causes the TV to come back with the same fault after a few months. Only replacement of all LED strips with new ones guarantees success.
Sorry, this is wrong. It is true that all the other LEDs were subjected to the same high current that caused some of them to fail. However, you can replace single LEDs if you lower the average current afterwards for all LEDs. I did this a lot of times and it works without problems (and without returns). The best option is to lower it on the driver PCB itself, usually by increasing the current sense resistor. Second best option is to do it via the menu (backlight), but you have to make sure to lower it for all sources and disable options that change the backlight setting dynamically.
Sir what is the reason for Sony TV blinking for six times and how much does it cost for the repair
bro i have klv40r472b.. due to electric surge through dish cable ..its giving me 2 blink error after sony logo..before 2 blink error it used to run for 10 mins..then time decreased to only sony logo and then 2 blink error..can u help me which parts to replace? i heard changing some resistor smds does the trick...pls help..thank u brother..help
Sorry, I would need the TV in front of me . The manual for the 470 syas 2 blinks = mainboard fault, so that
@@tomtechtod9200 its already opened up.. also i tried removing coaxial cable jack from the circuit.. didnt help.. in other videos i saw they changed two resistor smds ..one sky blue color(82k/82 somthing) and another one.. u know it used to work fine for 15 mins after the surge hit my tv..then time slowly decreased to 10 5 and now only logo comes and goes to two blink.. do i need to chk voltage in some parts of the circuits... ?? thank u for ur time bro
Ovo se ne isplati da se popravlja
it was for me
Can you please gimme a dumb down crash course on how to test the LEDs ?
Thanks a lot.
Assuming you don
@@tomtechtod9200 I have the exact same TV with the same problem and I'm thinking of opening it up.
I have a handheld multimeter, but I wasn't sure what's the voltage that the LED should be tested with.
I think I have a holder for 2/4 AA batteries so I could use those too.
I just heard that you said these are 3228 LED and on eBay thay say it's 3V so I guess 2 AA batteries would be good.
I don't have a hot plate but I have a heat gun and solder paste so I guess I'll do this with the heat gun.
Thanks a lot for the speedy reply.
Both Sony and other companies represent a very big disaster. The LED diode should work for at least 20 years, so to speak. If cooling were adequate. Shame .... shame ... and shame again. People are disappointed. Hey Sony ... Philips ... Panasonic ... Samsung, Lg, I hope you sober up one day ... shame ... shame.21 century
If stuff lasted 20 years they couldn't sell us their new and improved stuff , everybody had less work and more leisure time and less awesome products and much less trash on our landfills. What an absurd idea (sarcasm)
@@tomtechtod9200 Yes I understand ... but it's a shame that these LEDs fail right after the warranty period expires. No problem making a television that would live for at least 6 years ... unfortunately this is called rotten capitalism. I hope this stops one day in any way. We humans are the biggest wound cancer in the world.
Not worth the time or money TBH.