Mulja tv repair portal
Equipment Repairs => LCD TV forum => Topic started by: Contrast John on April 23, 2009,13:37:09
-
Hi all
Thought this was going to be an easy one, but after replacing the domed and split electrolytics on the 5 volt line (power board) I was left with exactly the same symptom - relay clicking continuously at about 10 second intervals but the set not starting. While the relay is energised all voltages marked on the psu output socket are present and correct. Suspect some damage further downstream on the signals panel, possibly a damaged regulator or corrupt eprom. Has anyone encountered this situation before, or does anyone have a service manual / schematics for this model. Any advice would be much appreciated.
Thanks
John.
-
try to disable lvds connector.maybe electronics of panel broken
-
Hi John, I'm quiet today and found some vague info.Go to the sm eeprom ic that sits near the LVDS plug on main pcb.Short the data & clock pins (?) on this ic,switch on and when relay clicks remove short.
Tv should come on,enter service mode(sorry no info),set tuner to auto & select reset.
Thats all the info I have and never had to test it out.
Best of luck tv john.
-
Hi RB and John
Have tried disconnecting the LVDS cable but the fault remained the same. Cant see any signs of stress on any board. The eeprom reset sounds interesting and suggests someone has been this way before.Will try it and keep you posted.
Thank you both for your input.
John.
-
Hi John and RB
Set now up and running. It was a case of a corrupted eeprom. Thanks John for the info.
For anyone with the same problem the procedure is as follows.
On this model the eeprom in question is IC 1803 (24C256) 8 pin smd and is located on the underside of the main board near the common interface. The clock and data pins are pins 5 and 6 and are identifiable by the 100 ohm smd resistors connected to each of them. Fit a shorting link (on long wires) between the pins. Reassemble the chassis. Switch on and then remove the short. Bring the set out of standby. Now access the service mode as follows-
Using the remote control, switch to standby, press info, menu, mute and power. The set should start and display the service menu. Using scroll keys select item 8 and enter by scrolling right. Select "tuner" and set to auto. Revert to previous screen by pressing menu. Now scroll to "reset" and enter by scrolling right. The set will revert to standby. Power back on and tune in stations. Thanks again tv john for the information.
John.
-
Footnote
Noticed when switching between analogue and digital tv, the video signal didnt mute ( unsightly hash on screen). Had to go back into option 8 and set the video mute time. Found 5 seconds about right (it had reverted to 0 secs). All ok now.
John.
-
Hi
Have got same fault replaced caps in psu bulging still clicking did reset as you wrote
came out of standby tried opion 8 still no anolgue or digital, works via scart skt
when going on to standby starts clicking again have to reset chipto get tv out of standby
Do you think eeprom chip faulty
Sparky
-
Hi Sparky
Seems that the problem is related to the eeprom IC. Might be worth checking all other options and settings with the correct service manual. When I repaired mine I noticed some other values in option 8 appeared corrupted and were not as suggested in the manual I have (LE32M86), although it gave me just enough information to get the set going again. Think you may need to check everything though and not just option 8. I noted there are some Hotel Mode settings in the manual I have and also power up settings. If everything checks out the Eeprom is probably faulty. Hope this info is of some help.
Good Luck
John.
-
Morning John:
Thanks for getting back will try and get service manual
and check the setting of eeprom ic etc
Sparky
-
changed caps in power supply was still clicking reset eprom and follwed advice above .set comes on but no tuning ,got manual but seems different to model. model no le40r88bdx/xeu any one got option info for this model (bord plus) thanks carl
-
I love this brand!
-
Hey all
Am not very technically minded here and reading some posts on here confuses the hell outta me, but I have a similar problem with this relay thing although after about 10-15 seconds the tv set will come on and is fine from then onwards, I have noticed now tho that it has started to get a little worse if the tv has been turned off for a while where it never used to.
Only had it for 2 years and am annoyed that its going on, Samsung dont seem too bothered by any of this and the guys they referred me to want around £100 plus parts to fix it.
-
Hi chips01
With a bit of luck you will just need to replace the 1000Mf electrolytic capacitors on the 5volt line. These components are located in the corner of the power board. Often they will have domed tops indicating their stress. If left unrepaired the set will eventually fail to start and there is also the risk of a corrupted or damaged eeprom IC. See also other posts on this site relating to similar Samsung models.
Regards
John.
-
Hi Contrast john
I have had a look at loads of forums with others having similar problems and there was a diagram on there regarding the capacitors, I have taken the back off and looked and they all seem fine i.e no bulging or leakage. Regarding the eeprom IC, I have no idea what you are on about lol.
Updated
Ok have taken back off again and looked closer and there are 3 capacitors that are bulging slightly on the top, gonna go down this route and get them replaced, just need to find someone that can solder now lol
-
Hi Sparky
This is only pic i took while the back was off.
-
hi
there is one cap bulging change the 5 x 1000mf caps
should cure the fault 105deg 16v wkd make sure you
fit in the same polarity and careful with the soldering
sparky
-
Chips 01
You need to shop around for prices.
I do these for £70 all in so you can get it done cheaper but electronics repair is not DIY stuff despite what websites say,it's dangerous unlike computers etc.The repair should be carried out by an engineer qualified to city and guilds,onc,hnc or so not just someone who can solder.If the eeprom needs replacing and he screws up the main board for you you'll be looking for a board at about £150.
I paid over £300 to have a few roof tiles replaced 3 years ago,why ? because i can't do it myself,that's life.If it's dangerous leave it to the experts.
nick
-
Hi Sparky
Photo enclosed with different capacitors, ones in red are the ones that seem to be bulging.
Would a 25v not be better than the 16v you suggested??
Regards
-
hi
sorry 25 volt wkd would be better changed the 3x and the other2
but be careful like other engineers says!
are you could end up scrapping tv
sparky
-
Hi Sparky
Will be replacing the 4 x 1000uf 10v to the 25v ones, not quite sure what you were trying to say in your earlier post "would be better changed the 3x and the other2"
The top 2 capaciters are fine and are the 25v ones,
The other 4 are the 10v ones and then the 1x smaller 220uf which for now I will leave.
Regards
-
hi
just change the caps with the red x
-
Hi Sparky
Am gonna push the boat out and replace the 4 x10v ones, if these are the inferior ones as most people say then its best to go down that route.
Thanks for all the help with this matter and when I get around to getting the capacitors and getting them put in I will let you know how everything went.
Thanks again
-
hi
d'nt forget to post wether fault is cured by changing caps
to help others
sparky
-
I will be posting when I get round to buying the correct ones, been looking on rs-onlines website and some vary on the ripple ( not sure if this does have any effect or not ), when I get this cleared up I will be buying some, I am not the quickest but I will get there and I will be posting to let you all know how it goes
-
Ok just a quick update. have now got the capacitors and hopefully will have them done tomorrow.
Will post again to let you know how it goes.
-
My advice is to let a tv engineer repair your lcd tv. I have seen an amateur destroy a tv before and I don't think your house insurance woukd pay out if a fire was the end result.
Remember there are high voltages inside,even in LCD tv's.
Just ask any firefihgter, who can warn you about tv's smouldering and the outcome.
John.
-
Ok the capacitors have been changed now and the tv comes on fine without any problems. I have noticed now however that switching from different sources there does seem to be a small fault, tv-dvd is fine but then going from dvd to another source it seems to freeze for a few seconds and then turns over ( not really mind about it that much ), also when I change the mode to movie the picture is very awful in the way that the background is grey and the main subjects on screen are made up of hundreds of different colours, almost dotty like ( if that makes sense ) again its not too much of a concern as at least I have the tv working again.
I was wandering if I should have got all the capacitors changed ( only changed 4...3 were faulty but all being the same type and voltage I thought it best to change them all ) I kept 3 original ones in there as 2 were of a higher voltage and they were fine and there was 1 smaller one which was a 220uhf not sure on voltage on this one though. Would/could this smaller one be causing problems now that I have upped the voltage on the other 4?
Photo attached to show what I mean, and sorry for making this post a bit long
Also attached is photo of the tv in movie mode
-
if your lucky youve just corrupted the eprom,if your unlucky youve trashed the main signal pcb
but try a new eprom first.
its very important not to run these sets for very long with this psu fault (a long time is 15 seconds)
many customers leave them clicking away for hours hopeing they will start even after they have been told not to do this,causeing damage to the signal pcb.
you can set the software up manualy if you can get a set of paramaters,i have them writen down for a similar set which i can let you have but there may be some important differences.
hope this helps
daz
-
daz
The clicking has stopped with the new capacitors and all seems fine except as in my previous post regarding the picture on movie mode, surely if there was a fault with eprom or psu the picture would be bad on any setting??
-
Daz is spot on. The service menu will be corrupt. This signal panel is used also with hardware and software modifications on plasma models as well as lcd, if they have gone corrupt to plasma settings there could be your problem. There are 21 separate adjustments for Wide/Movie mode alone. It is highly likely they will be needing reset after your PSU problem. You need a copy of all 10 pages of the settings to be sure, then compare yours with the default from the service manual copy.
-
Ok where would I get all the info of my settings? are they in the service mode option in the tv? if so do i just make a note of all of the serttings in there?
Where can I get a copy of a service manual for the tv, I have looked in the download section but cant find anything, have googled it but dont really want to pay for a manual if I can help it.
Sorry if I seem a bit thick here lol
-
The pdf file attached to the last post contains the settings. It's for the 32"-40" 86 version. You can use it as a guide keeping in mind, it's not exactly the same model.
-
Ok looking at those settings there are quite a few abnormalities, I know they are different models but some of the settings dont seem correct ( what would I know tho ).
Have attached file for you to have a quick look over, have made a note next to the parts that are different.
-
Option Table 2 could be wrong, should be set for your panel type. 40". Page 8, Video mute time is wrong, set to 10 from 0. All the rest of the settings seem to be within their ranges. Item 12 Reset is also interesting. There are no details in the manual whether by using it, it resets the complete set to factory settings or not. It could be the answer. What is now clear the settings have been corrupted by the original PSU problem. More than this I cannot add without the exact table for the 87 version.
-
Ok will have a look and change the settings, I will not touch the reset on item 12 as yet until I can find out if this does completely change it all back to factory settings. I have looked for a manual for this model but can only find a part 1 and nothing else. Will keep looking though.
-
Complete Manual here 6 zip files
h**p://www.eserviceinfo.com/downloadsm/41407/SAMSUNG_LE23R86BD,%20LE26R86BD,%20LE32R86BD,%20LE37R86BD,%20LE40R86BD.html
-
Thanks for the link to the manual, obviously there are some differences between the 86 and 87 version. I took the bull by the horns and pressed the reset option on item 12 and it seems to have fixed the problem I get when I go into movie mode, I will take a look at what the settings are again at some point and make a note to compare what settings had been corrupted.
I would like to say a huge THANKS to all those that have put their thoughts forward on this problem.
-
Glad to be of help. It pays to put faith in old retired profesional brigade with 50 odd years in the trade. Our brains are still active, even though the bodies are starting to creak a fair bit.
-
Hello All,
I would just like to say a huge thank you, as thanks to your instructions we managed to fix our TV for only £20.
We recently had the same clicking problem with our 2 year old LE40R87BD and it refused to come on. After doing a little research on the internet, we found out about the capacitor problem and low and behold when we opened the back of our TV we had 3 dead ones. :wallbash:
A neighbour of ours knows a thing or two about electronics and changed the capacitors but still no joy. Feeling disheartened we continued to search and found this forum and decided what the hell, lets give it a go. After resetting the eprom as per the guidance you gave, the TV is now up and running.
I am over the moon, thanks to good people like yourselves, i have saved myself lots of money! :thumbup:
I am so disapointed with Samsung, as i have always liked their products but will not be buying any more!
Thank you, Thank you, Thank you, Thank you, Thank you, Thank you, Thank you! :biggrin2:
-
Hi,
this is to inform you that with your suggestions I have been able to repair my samsung 52l2m86bd whihc had the problem of clicking repeatedly and starting only after about 20-30 clicks.
I opened the back and found the psu having 5 caps defective.
The caps are 10v 1000mf.
I just changed them and the tv is back on duty as ifit was new.
THANKS THANKS THANKS
I was already ready to call the tech but thank to you I saved myself a lot of money!! Total cost of the repair 3,5 Euros!!1 Nothing at all.
Ciao from Italy
-
Hi all,
I have just signed up after finding this site from google.
I have a Samsung LE40R88BD, and it has started the clicking itself on & off, i changed 6 capacitors all to 25v 1000uf even tho 3 were 10v. but still no joy, when i disconnect the cable from psu to av board i have no power (see pic) do you think i need a new psu or a new av board (sorry if it's not called an av board just presume it is as it houses the scarts / hdmi's etc)
Is there a way to test my psu before i spend money i dont have?
Any help appreciated.
(http://img.photobucket.com/albums/v119/skinnyvinny/CIMG2644.jpg?t=1259674593)
Thanks :biggrin2:
-
Hi All
Had another one of this model in for repair and after persuading it to start with the shorting links found I still had problems. After setting the tuner option to auto and doing a reset I found that a retune failed to find any stations. This was cured by toggling the 'Ready' option in section 2 of the service mode and leaving it in the 'off' position. A vertical column of interferance (small dashes about a half inch wide all the way up the screen) was cured by adjusting 'FEE Delta' in section 13 of the service mode to a value of 0. Might sound like a quick fix but took a good while to sus out. It seems that a lot of attention may be required to the settings in the service mode whenever there are problems after replacing the capacitors.
Would also like to take the opportunity to thank everyone for their contributions to this and related threads on these Samsung models. Our combined knowledge and observations have enabled us to build a picture of the possible/probable failings and how the engineer might tackle them.
Thanks to everyone
John.
-
Hi, I have a LE40R83 BX . It had the usual power supply fault but still :bo: has a problem. It powers up and runs for 25 seconds then clicks off. it then starts again , it keeps cycling on and off every 25 seconds. I have tried a new eprom ic .The tuning and every thing else works fine while its on . Any one else had the same trouble. Regards Kittys boy.
-
Hello all,
New to this forum and was searching the net for the same problem as most of you are or were having.
having found that it wasn't a handfull of people with the same problem I decided to ring samsung today, as with my tv being just over 2 years old I was a bit hacked off!!!
The moment I mentioned about the clicking when its trying to switch on they said I was eligible for a free repair as they have accepted there is a problem with this model, RESULT!!!!
H&H TV repairs in liverpool have contacted me already so thats a good start. :cheesy1:
My TV started having problems when I lost my HDMI3 port, it completely disappeared of the list, then I noticed all my digital TV had disappeared also, which meant no access to d-menu on the remote, luckily I have sky+ so I could still watch telly, but clicking has got worse this last week and wont come on at all now :mad:
So just letting you know its definitely worth a call before you do fiddle around inside your telly, I'd rather they break it and have to repair it than me. :ciao:
-
Hello all,
New to this forum and was searching the net for the same problem as most of you are or were having.
having found that it wasn't a handfull of people with the same problem I decided to ring samsung today, as with my tv being just over 2 years old I was a bit hacked off!!!
The moment I mentioned about the clicking when its trying to switch on they said I was eligible for a free repair as they have accepted there is a problem with this model, RESULT!!!!
H&H TV repairs in liverpool have contacted me already so thats a good start. :cheesy1:
My TV started having problems when I lost my HDMI3 port, it completely disappeared of the list, then I noticed all my digital TV had disappeared also, which meant no access to d-menu on the remote, luckily I have sky+ so I could still watch telly, but clicking has got worse this last week and wont come on at all now :mad:
So just letting you know its definitely worth a call before you do fiddle around inside your telly, I'd rather they break it and have to repair it than me. :ciao:
This may help
Samsung cust services 08457267864
good luck :ciao:
-
Hi All,
Had the clicking issue earlier this week. Googled it, and WOW! opened a can of worms. Opened it up, capacitors bulging, replaced them, still no joy. Attempted the EEPROM reset, no joy. Decided to put it all back together and try calling Samsung........
......if you are in the UK, I would suggest not even bothering to open it, they are completing FOC repairs to this problem. the guy on the line (number above) said, it was difficult for people to get any assistance from them to begin with, but the powers that be have seen the light.
Dont bother trying yourself, get it fixed for free, well done Samsung for growing a pair at last!
-
hi telly people, i am in the same boat as you but i dont even have a soldering iron so i cant fix it, the supprt number in the back of the manual doesn even work anymore, just say service is unavaliable!!
-
Sorry if this is the wrong place to make my initial post but, I just have to say that you guys are truly fantastic! I 'had' a TV with the same fault as originally described at the beginning of this thread! Resetting the ROM worked for me!
I recently started out repairing Plasma & LCD TV's after my dad gave it up after 'millions' of years in the trade, he just couldn't be bothered with surface mount technology, He's standing by me now teaching me more, I've always been by his side where I could over the years and have a good backround in electronics but what you guys have showed me recently just takes his knowledge and modernises it!
I can't thank you enough! I have now signed up to this great forum and WILL be back, I'll help out where I can, you can be sure of that!
Nice one!
BUFM...
-
All, contact Samsung first! I too have this problem, and I was advised to go through the retailer and use the Sale of Goods Act, goods fit for purpose. :chok: But on reading your posts above, I contacted Samsung Customer Services. They have agreed that it is a known fault and that a local tv repair company will be in touch to come to my home and repair the TV free! :yahoo:
So I'm just waiting for the call......
I'll keep you posted.
Mark
-
Tried all of the above but still clicking. Am i doing it right? Fit short, plug in, cut the short, then turn on?
-
no
-
Whats the right way then please?
-
read from page 1
-
Have done. From page 1 "Switch on and then remove the short. Bring the set out of standby. Now access the service mode as follows".
Set has no main switch so does it mean switch on at the mains, then remove the short and bring out of standby?
Thanks
-
Hi - always take a piccy first - Chris.
-
We are talking about electrical safety here, after all you didn't hear about the house going on fire because the guy attempted to repair his Samsung tv. He fitted an inferior component which went on fire.
In the past I've seen dry joints,capacitors and on-off switches all going on fire,so get a tv engineer to repair your Samsung lcd tv.
John.
-
Well said john!
I love this site and always try to help where I can, but I do question the wisdom of encouraging Joe public to bugger around in the back of their TVs, not only from a health and safety point of view (sure someone will get sued sooner than later) but also from a financial point of view as I don’t know of an engineer making much money these days, decades of knowledge given away for free to Joe public is that wise ????
PLEASE DISCUS!
Daz
-
Too true daz
Driving a P registered Astra estate is testimony to how much a tv engineer earns!
Not sure how much use to joe public our topics are-at least as to repairing things. Think they are more likely to get into some bother rather then complete a repair to the high standard required. Unfortunately with this trade there are no regulations regarding who should be allowed inside the back of a tv set full of dangerous voltages. Gas fitters and electricians have to be qualified and registered to do their job and coincidentaly seem to command greater respect (and greater charges) from the public then ourselves, yet the level and quantity of knowledge required in our trade is far greater.
OK had my gripe-on the plus side gotta say that this is a great site and those of us in the trade are always helpful to each other. The equipment we`re working on is becoming ever more complex and information scarcer, so we`re going to need to stick together and share what info there is to have any chance of paying the bills, whilst (reluctantly) accepting that this is an open site.
Regards
John.
-
hello if you are in need of any service manual please contact mr has on 91229924114860. you will have to deposit the cost of it in advance in his hdfc bank account and he will send it you by email. he sends it. i ordered many manuals from him.good luck.
Hi John and RB
Set now up and running. It was a case of a corrupted eeprom. Thanks John for the info.
For anyone with the same problem the procedure is as follows.
On this model the eeprom in question is IC 1803 (24C256) 8 pin smd and is located on the underside of the main board near the common interface. The clock and data pins are pins 5 and 6 and are identifiable by the 100 ohm smd resistors connected to each of them. Fit a shorting link (on long wires) between the pins. Reassemble the chassis. Switch on and then remove the short. Bring the set out of standby. Now access the service mode as follows-
Using the remote control, switch to standby, press info, menu, mute and power. The set should start and display the service menu. Using scroll keys select item 8 and enter by scrolling right. Select "tuner" and set to auto. Revert to previous screen by pressing menu. Now scroll to "reset" and enter by scrolling right. The set will revert to standby. Power back on and tune in stations. Thanks again tv john for the information.
John.
:clap:
-
hi
rang that number does,t work is this a another con merchant,trying to take
our hard earned pounds
sparky
-
Hi Daz,
The thought that 'clipboards' might be checking our activities for some sort of ability causes anal wind to develop.
Guess they would have, if they could, and given us Telly Bashers some silly name if they understood the technical nature of the job.
They never have, and probably can't - well it's politics, and we don't give a shit - Mildly, as ever - Chris.
-
if you any tv service manual or circuit digram then contact dabkeradio@rediffmail.com
Hi all
Thought this was going to be an easy one, but after replacing the domed and split electrolytics on the 5 volt line (power board) I was left with exactly the same symptom - relay clicking continuously at about 10 second intervals but the set not starting. While the relay is energised all voltages marked on the psu output socket are present and correct. Suspect some damage further downstream on the signals panel, possibly a damaged regulator or corrupt eprom. Has anyone encountered this situation before, or does anyone have a service manual / schematics for this model. Any advice would be much appreciated.
Thanks
John.
-
Hi been trying this lots, and i can only get a blank picture and the back lights on. Have i killed the eeprom possibly? I got picture once but no sound so tried resetting again, no luck since:/
-
hi
looks like you have killed the poor eeprom,try changing
it with a blank one it then sets itself up
dave
-
I'll order a few, and let you know the result.
-
I still haven't received my replacement eeprom, but I'm looking at the board now, and there is actually two 24c256's. The second one is at IC3202. Can someone please verify that this one isn't a possible fault too?
-
Our workshop repairs approxametly 4 of these sets a week with the clicking relay or stuck in standby symtoms.
The cause is excess noise on the supply lines(in particular the 5v supply).The electrolytic decoupling
capacitors begin to suffer from electrolyte dry out,which increases there esr(electrical series resitance).This makes the casing expand.Because of the noise on the supply line,this in turn corrupts the memory ic(eeprom) in 90% of sets.The cure! Replace the 3 or 4 (depends on psu version fitted) 1000mfd/10v capacitors(16v are better)110 degree.If it still has the clicking relay symtom(or it may work with odd symtoms)then the eeprom will
have to be replaced on the main pcb,its a 8 pin ic on the top right of the board,mounted on rear side(top left looking from behind the board).You have to fit a blank eeprom.Then refit panel & swich on,it will take 15-20 seconds for the flash memory to upload to the eeprom.The relay wiill click once or twice before the picture appears.Im going to introduce a kit of parts with instuctions very soon.Watch this space!
-
Well said john!
I love this site and always try to help where I can, but I do question the wisdom of encouraging Joe public to bugger around in the back of their TVs, not only from a health and safety point of view (sure someone will get sued sooner than later) but also from a financial point of view as I don’t know of an engineer making much money these days, decades of knowledge given away for free to Joe public is that wise ????
PLEASE DISCUS!
Not everyone who is 'Joe Public' doesn't understand or respect the dangerous nature of working on TV's or electronics in general.
I'm technically a 'Joe Public' as I don't repair TV's for a living, however, as an ex Electron Microscope engineer who has moved on to more lucrative pastures, I do fully appreciate the care needed when working with high voltages (400KV in a TEM anyone?)
The way I see it is if you have a 32" Samsung TV that's worth £150 second hand working, no one is going to spend £50 just to have it looked at when they can bang it on eBay and get £75 for it as faulty and then pick up a new set for around £250, this gets the faulty sets out in the public domain which undoubtedly leads to people picking them up and then looking for help on how to fix them.
Time goes on, things change - that's how life is, you have to adapt to keep on top of these changes - if more repair people did a no fix, no fee you'd get more business.
-
then people will live on thin air and disappear
or repairing tv's for free
-
Hi Sparky,
Good thought, but as local chaps who mended tellies for a decent price had to get a real job some 20 years ago when folks wouldn't pay for their sharp suits and nice motors, I found it the biz to be in with friends in low places (I never had any real taste- you guessed)
I could be last TellyBasher in this Turkey Twizzling region - well, no-one else on Quuq talks real 'Norfolk'
'Bootiful' (last time - fairly honest) - Chris.
-
hi
ive been having the same problem as most people who unfotunately have a samsung tv.
ive shown in the pictures attached why capacitors i have replaced with a red cross on the top. i was told on a different forum to replace them with 1000uf 35v ones but it doesnt seem to have made much difference, should i use a different vault?
ive attached a picture of the full board too, as im not used to doing things like this i dont really know what everything on there is, if theres anything else on the board that could be wrong could someone who knows whats what please point it out to me and advise me on what parts exactly i should need, its been clicking on and off for a few weeks now and all the tv settings have been reseting when ever i turned it on until last week when the tv wouldnt switch on at all.
any help would be great
thanks
Adam
-
Hi guys,
I'm really glad to have found all this really useful information on how to fix TV's! It gave me the perfect excuse to go out and buy a new soldering iron.
My 2 1/2 year old Samsung 40" 1080p LCD TV decided to crap out on me on new years day, as pointed out to me by my boys at approximately 6am. You can only imagine.
I decided to carry out the repair myself and armed with a list of capacitors, phoned my local Maplin store. They assured me over the phone that they had the 'all the capacitors in the world' in stock. My TV was carefully disassembled, the PSU board was removed and I drove the 60miles to go and get my 7 radial capacitors.
Sadly, they had no capacitors in the 105 degree range I needed, so I left fairly miserable, figuring that by the time I'd ordered components and had them delivered mail order, the TV would likely stay knackered until the weekend.
As a last resort, I phoned the Samsung care line, on the bank holiday Monday. Imagine my surprise when they agreed for an engineer to phone me within 2 working days. Tuesday morning, the service centre duly contacted me and a pair of engineers arrived on Thursday the 6th January (yesterday) and carried out a repair in the home before lunch. It took approximately 10 minutes, and they simply replaced the entire board - for free.
On the receipt, they describe 'replacing 4 capacitors' in a range that my particular example doesn't actually have (4x16v 1000uf), but what the hell - my TV works now and it was done gratis. The work is guaranteed for 3 months.
I'm vaguely annoyed that I didn't have the satisfaction of repairing it myself, but thanks to this site, if the PSU they supplied ever decides to spew all it's capacitors, I shall take great delight in soldering in quality items from RS.
My EEPROM had no issues at all, so I should imagine it's only the unlucky few amongst us that need to reset it. It's also my understanding that should your EEPROM be corrupt, Samsung engineers will not be able to carry out the repair in the home.
[EDIT] Just thought I'd add, even though the work was being done for free outside of the warranty period, I didn't exactly want the Samsung engineers getting the impression that I'd taken the TV apart myself to inspect the PSU. Just in case. There's no point giving them an excuse not to carry out the work.
For that reason, I was very careful not to munch up the screws or give any indication that the TV had been 'tampered with'. Ahem. I even used a permanent black sharpie pen to make the screws look good as new -tee hee!
:08:
Samsung 0845 726 7864
-
Hi Horatio,
Guess you might just read back threads - Yawn - Chris
-
Turnip
I don't understand what you mean. Please explain.
-
Hi Horiatio,
Pleasure - this topic has been covered in Quuq for some while - just tap model into 'LCD Search' and you'll get tons of stuff - Chris.
-
Turnip
But I'm not exactly looking for anything now matey. I've searched all the threads I need to. I've found my capacitors and know where my EEPROM is. I was reporting that Samsung have kindly repaired my TV for nowt.
My response was really more relevant to Nolan1985, who may not have considered phoning Samsung yet.
I've indicated exactly when I contacted them, when they contacted me, and what their turn around time was. Pretty good considering it was a new year/bank holiday week. This thread is entirely suited for that kind of info. Anyone wanting to - yawn - run a search would then find up to the minute info on Samsung's after care etc. You never know, it might even help someone.
[Edit] Btw, just out of interest - go to the home of this site and try running a search on le40m86bdx/xeu on this forum. The results aren't exactly what you'd call fruitful. Then try the search from the panel when you login - only this post shows up.
-
Personally I think Samsung are making a rod for their back. If its out of warranty it shouldnt be repaired FOC. I dont think LG Tosh or many others do free repairs even though their PSUs are prone to cap failure.
-
Personally I think Samsung are making a rod for their back. If its out of warranty it shouldnt be repaired FOC. I dont think LG Tosh or many others do free repairs even though their PSUs are prone to cap failure.
Red rag / bull scenario!
They'd be making a bigger rod for their back if they expect customers to suck it up - buying a £1000 telly every 2 years or so. Or face being fleeced £150 just for someone to say 'yep, it's your PSU - it's full of dodgey caps. That will be another £200 for a new PSU please!'
Samsung are setting an example that others should follow. Plus of course, if the reason for failure is a well known, well documented case of shoddy components - why should the customer be made to pay?
Consumer law states that goods have to be fit for purpose. Forget the warranty. It's not unreasonable to expect a TV to last longer than the warranty period. If it turns out that the PSU has a whole bunch of swollen caps, it's the least the manufacturer should do.
I can imagine that struggling TV repairmen may find it hard to swallow that such repairs are now being done for free, but I can pretty much bet that the vast majority of people stumbling across this forum are doing so because their TV has just broken. Their main priority will be to get their TV working again in the least amount of time, for the least amount of money.
Samsung got my TV working again in less than 10 mins, for free, within 48hours of my call. This means my initial purchase/investment cost in the TV was not a complete waste after all, thanks to some pukka after sales care. People who like to do their homework will make a note of this.
The defective capacitors are effecting all manufacturers, TV's, motherboards etc - so once the caps are 'out there', the only thing respected brands can do is offer first class customer support. Or risk their reputations.
-
Hi Horatio,
Some folks buy tellies, other folks mend'em - T'was ever that way. Find it difficult to get terribly guilty about income - There's so few of us repair-folks about these days, so guess we deserve a small share of Tiny Tim's Titchy Turkey.
Nibbling on a tin of ersatz meat with suspect German egg additives - It's all Dickens, yet again, but with anti-freeze - Nifty, in this year of global whatnot - Bit Crimble Carol - Chris
PS - Some folks (not us) get visitations
-
Hi Horatio,
Some folks buy tellies, other folks mend'em - T'was ever that way. Find it difficult to get terribly guilty about income - There's so few of us repair-folks about these days, so guess we deserve a small share of Tiny Tim's Titchy Turkey.
Nibbling on a tin of ersatz meat with suspect German egg additives - It's all Dickens, yet again, but with anti-freeze - Nifty, in this year of global whatnot - Bit Crimble Carol - Chris
PS - Some folks (not us) get visitations
LOL. Never mind the Turkey - just take it easy on the Absinthe!
-
i can see that there are a few bulged caps. CM811,CM817,CM812.change them first.if still the same change them all.
-
Hi John and RB
Set now up and running. It was a case of a corrupted eeprom. Thanks John for the info.
For anyone with the same problem the procedure is as follows.
On this model the eeprom in question is IC 1803 (24C256) 8 pin smd and is located on the underside of the main board near the common interface. The clock and data pins are pins 5 and 6 and are identifiable by the 100 ohm smd resistors connected to each of them. Fit a shorting link (on long wires) between the pins. Reassemble the chassis. Switch on and then remove the short. Bring the set out of standby. Now access the service mode as follows-
Using the remote control, switch to standby, press info, menu, mute and power. The set should start and display the service menu. Using scroll keys select item 8 and enter by scrolling right. Select "tuner" and set to auto. Revert to previous screen by pressing menu. Now scroll to "reset" and enter by scrolling right. The set will revert to standby. Power back on and tune in stations. Thanks again tv john for the information.
John.
Thanks so much for this info. Followed it and it worked first time! Just to clarify, eprom pins are numbered from small arrow on circuit board, 1-4 on left and 5-8 going up the other side in that order. I hope the picture attached helps
-
Hi,I work in a workshop that repairs these samsungs all week long.When they come in with defective electrolytics
in the psu(some have 3 others have 4 all 1000m/16vw).After replaceing the defective electrolytics we also in 9 out of 10 cases have to replace the eeprom on the main board.They are not preprogramed,but blanks! I think they are 24lc128 0r 24lc256.You can even fit a 24lc512 ie, they can be larger but not smaller in memory size! By fitting the epprom,it forces the flash memory to rewrite the eeprom & so you wont have to go in the service menu in most cases!The corruption is caused by noise on the supply line when the electrolytics fail!Hope this clears a few things up. Graham Richards
-
we also in 9 out of 10 cases have to replace the eeprom on the main board.They are not preprogramed,but blanks! I think they are 24lc128 0r 24lc256.You can even fit a 24lc512 ie, they can be larger but not smaller in memory size!
Are you sure about this info, someone said a 24LC64 is enough memorysize to fit in this mainboard!?
As i only have 64 at stock, this is important for me to know.
Also, have mailed samsung portal to be reactivated to get schematic of the mainbord.
But really thought someone here could help me on that one, is the pcb-wire and a via that
is damaged by another repair shop, and i need to have the schematic to see where the via is going. Its pin 6 of the eeprom ic803 that has a damaged via between pin and a smd resistor.
-
Hi Steve,
Its's an old one but give Quuq folks a piccy of your prob - Chris
-
Oops, seems like it is only a "pad" on a second better look on the mainboard, the pin 6 only connects to the smd resistor. My misstake , sorry.. Have to get better specs.. :sign0144:
-
Hi Guys, I'm just having problems whit my Samsung LN52A550 that doesn't start after replacement of all Capacitor from the PS board, It click but after some seconds it click again, I read here about reset the eeprom but my main board it's a BN41-00975B with lots of circuits dip-8 so, have some one any Idea which IC its the eeprom on my board and if it worked for anybody?
Thanks.
:sign0085: :sign0085: :sign0085:
:c017: