Friday, June 9, 2017

Repair Sony KDL-56XBR6 A1557397B T-CON 1-857-253-11 A1556899B

Coppell TV Repair LLC now offers repair service for Sony T-CON board 1-857-253-11 / A1557397B / A1556899B / 1-877-777-11 / 55.46T02.C05 / 55.46T03.C03 used in the below listed TVs:



Wednesday, May 17, 2017

Vizio XVT3D554SV, XVT3D474SV and XVT3D424SV repair offered

With a few years delay we're updating customers and Internet in general that Coppell TV Repair LLC is offering repair services for the main boards for the XVT3D series from Vizio, namely:

As with  (almost) everything else, we test those boards both on the way in and the way out of the shop as can be seen here:



We also have replacement EEPROMs for those main boards, which you can find at www.coppelltvrepair.com.

Every now and then we also have boards available for purchase with trade-in option for the old dud (CORE purchase), but customers frequently either do not return their boards or return them so badly damaged they either can't be repaired or can't be sold or warrantied because of the way they look....and that unfortunately ends up the sale-repair-sale cycle until anther board becomes available.

Wednesday, May 10, 2017

Samsung UN50H6203AF no image issue troubleshooting

In the past month we've seen a few units of Samsung UN50H6203AF in the shop with the same issue - TV starts up, backlight is there, but there's no image on the screen even though the T-CON LEDs are on in blue and it appears as if the T-CON is just fine.

Testing output voltage to the LCD panel shows that at first it gets a spike of proper voltage, but then goes down to 0.

Then we actually ended up "repairing" (though frankly I still don't dare call this repair) one of them with another one currently waiting. The "repair" is something we've done before as a last resort by means of losing portion of the panel and re-purposing the TV for digital advertising or other situation where one could go with missing an inch or so of the display.



Friday, April 28, 2017

Repair for DELTA DPS-171CP A / DPS-162KP-1 power Sharp LC-70C7450U LC-70C8470U LC-70LE847U now available

This is just a simple announcement that Coppell TV Repair LLC is now offering a repair service for power supply board DELTA DPS-171CP A and other boards based on PCB DPS-162KP-1 as shown on the image below. The following Sharp models are known to use DPS-171CP A:










There are several different problems we've seen with this board.

One is where the board is totally dead and there is no +5V standby voltage. The TV is then totally dead, of course.

Another is failure to turn on upon being told so by the main board; this results in series of two fast and two slow blinks in the TV.

There sure are failures we have not seen yet.

Monday, April 24, 2017

Which board to send for repair - original or one from eBay?

QUESTION from the mailbox:

Item: VIZIO XVT473SV REPAIR SERVICE FOR MAIN BOARD 3647-0312-0150 / 3647-0312-0395

Dear coppelltvrepair,

Have two boards, original and one purchased on line. The original has the blinking logo- will not turn on. The purchased one (got screwed) seemed to work, but no picture or audio at any port, otherwise responds to inputs.

Which card would be best for repair. No sense it repairing both of them.

ANSWER:
(short): Send both!
(long) : A component level repair of something you have not yourself created is hardly ever a certain thing (more on that shortly) and the truth is we do not know for sure if either of the two, or however many boards you have, will end up functional. We have some statistical data, of course, and if listing is still up then this statistical data is in our (and your) favor that yes, it will be, but it's still not a sure thing.

Without knowing what is wrong with a board it is wrong to assume it can be fixed and without having seen and inspected the board it is wrong to assume its condition.

We do know for sure, however, that the more boards we receive, the higher the chances of a) us having them at least one fixed and working well; and b) us failing to service one, at least in a matter that makes is practically meaningful for both parties.

The very best guidance we can give is that we do NOT want boards that have visible signs of tampering (says so in the listing), traces of rust or other reactions resulting from nature or human impact on the board.

I can also say boards from random, small eBay sellers can easily come with invisible and possibly fatal defects; say user Joe has parted his TV and possibly a few other TVs and has made a little side business selling parts...Joe wouldn't be handling boards professionally, he's probably stacked them somewhere or threw them all in a box and when one sells he just goes hunting for it in one of the boxes and pulls it out.

Boards lay back to back, they scratch off each other and SMD capacitor or resistor or diode easily gets ripped off in the action. Good luck finding it!

Of course you aren't guaranteed against that happening with any board, but you get the point.

So to summarize, if you have one or more boards you pick the one that looks the most neat and send it if you want to send just one, or you send several if you want to increase the chances of us producing a working board.

You can have the rest back, we won't repair and charge you for more than one if you want one. You may end up paying a little extra and , worst case scenario, you may received back a board that has been worked on and it's still not functional, but that other board you'd send may as well save you another money and time for the mere cost of a combined shipping surcharge.

You can have your boards back or you can leave/sell them to us (no guarantee we'll be buying anything, but we might make you an offer if you indicate you do not need more than one back).

Thursday, April 20, 2017

How to test Sony KDL-50EX645 power supply DPS-162LP / 1-895-316-11

I just made a video for a customer on how to test the board we've sent him as well as his own Sony KDL-50EX645 power supply DPS-162LP and I thought I'll include a link to it here:


The most common failure of DPS-162LP causes the TV to be blinking 7 times, and is manifested in lack of 24V upon signaling the board as shown on the video.

Of course other failures are also possible.

Saturday, March 4, 2017

Why service technicians tend to be grumpy

I've seen that before and I may have written on that before.

There was a period in my life when I was going around doctors like crazy trying to find a solution to losing vision with one of my eyes. I didn't find a solution, but I found out that the higher in the hierarchy the doctor, the more grumpy he or she tended to be; you were supposed to get in, follow instructions and get out; only feed information when asked and exactly as asked; free input was not much appreciated.

I later noticed I tend to develop the exact same symptom in my repair service business.

It's mostly because people tend to love talking in hope that will help them, whereas most of the time - at least in my experience - what they talk about has little or absolutely nothing to do with the problem at hand.

In their laymen heads they see a connection even if there is none ("it worked 5 years and it stopped when we moved it in the kitchen, but there is surge protector there, but there's also a fridge and I was thinking....").

They shouldn't be blamed for that, but at the end of the day they come to us to have a particular problem solved at a fixed and fairly low price, which does NOT include listening to lots of guesses, let alone education on why those guesses are wrong.

And those are the mild cases.

This post , like the one before, is about one of the not so common, but more aggressive cases of human idiocy that we have to deal with and which make us grumpy.

See for yourself, directly from our email (only revision to the text is the link added to the listing on eBay that was paid for):

From: Isaiah Kanda [mailto:makoakanda@g----.com]
Sent: Saturday, March 04, 2017 12:01 AM
To: Coppell TV Repair LLC
Subject: Coppell TV Repair. Contact us

From: Isaiah Kanda - makoakanda@g----.com

I purchased a Sharp LC-42SB48UT power supply 715G4009-P1A-H20-003U / ADTVA2415SA4 off ebay from your company and all you guys sent me was a package saying "thank you for your purchase" WITHOUT the $70 item I bought from you guys, on top of that the package already says "delivered" and if this is the case I want my money back, I didn't just spend $70 fucking dollars for a week of patients for a sheet of fucking paper. Your shipping instructions Btw is horseshit and I better get this shit or you're gonna have a lawsuit on your fucking hands this is bullshit.

My TV model is: Sharp


This customer:
1) Has not read the listing or does not have the mental capacity to process it (no offense meant)
2) Has not read the follow-up email clarifying what was purchased or does not have the mental capacity to process it
3) Has not read the follow-up snail mail notification or does not have the mental capacity to process it
4) Uses profane language
5) Makes threats that are virtually baseless and even more certainly impractical as any lawsuit is going to end up costing him way more than what they've already spent.

From here on I can only make an educated guess that he won't be willing to recognize his own failures as the biggest contributing factor to the problem he's facing and will continue making demands.

You see, we like working with customers, not for customers, from which immediately follows that we are not willing to go for every customer.

What we don't want to is to end up paying for their lack of qualities, including ability to read and process information and communicate in a respectful and civilized manner.

Is that too much to ask for?

It looks like it is.

Which is why we tend to get grumpy :-)

Wednesday, January 18, 2017

Bill Hogan is another customer who is always right

This article is a response to a negative feedback left by our eBay customer Bill Hogan, in which he accuses us in deceiving business practices, lying about shipping boxes and being rude on the phone as shown here:

(click to enlarge)


We can't pull any proofs against his last claim, so it will be our word we were not versus his, but we luckily have some proofs on the former two we'd like to introduce to anyone who's interested.

As can be seen from the above screenshot Mr. Hogan ordered

REPAIR SERVICE FOR T400HW01 V3 / 40T02-C04 / 55.46T02.C02 AUO T-CON.

You can click on the above link to land at the eBay page for this listing or you can simply look at the below picture (red underlines are ours):


We will not explain here what this means; if we have to explain it after you read it then we've failed and you can consider we admitting to it.

Mr. Hogan apparently had not read it, though, and since he did not receive a board he opened a case in Paypal.

Here is what his case looked like (again underscoring is ours):

In his claim, Mr. Hogan said (as underlined) that he received the item , but it was not as described.

Later Mr. Hogan has closed this case and opened another one, this time with his credit card provider, now stating he did NOT receive an item:



On our end we'll say this:
1) Mr. Hogan ordered a repair service as outlined in multiple places in the original eBay listing; we are still able and willing to deliver on what was advertised provided he does what is required from him in order to do so.

2) Like all other customers who order repair services on eBay from us Mr. Hogan was sent a snail mail reminder (the USPS tracking number shown in the screenshot above) to send the board as per the listing's terms or to go and read the listing and contact us to straighten the issue if he is still not aware that he bought a service and not an item; it is after receiving this communication (preceded by the multiple listing entries and a follow-up email with shipping instructions automatically sent upon order placement) that he eventually learned about his mistake and phoned us.

3) Mr. Hogan called us on the phone and was sarcastic and rude in the face of being told the above, i.e. what is it that he ordered. He did call us liars and thieves and hung up on us on the phone; he did not admit to having placed an order in error, he insisted he ordered a physical good and we've somehow tricked him.

4) As illustrated Mr. Hogan is contradicting his own claims - once that he received an item and once that he did not.

5) By placing an order on eBay Mr. Hogan entered a legal agreement with us, which agreement bears consequences and costs, such as USPS notification cost, eBay fees and now PayPal fees we'll have to pay because of the dispute brought.

The agreement did not have fine print and is not a bite and switch one; we are still willing and able to deliver everything as advertised and Mr. Hogan (or anyone else in his place for that matter) is just as responsible for his side of the agreement his willing entered into as we are for ours.

Naturally, we claim that Mr. Hogan should bear the consequences of not having read the terms and cover the costs for breaching out of his agreement.

5) As can be seen by looking at our eBay repair service listings and in our feedback from customers quite a few people use and praise our repair services and apparently have no problems with reading and utilizing them.

If you find an omission in any of them that is in customer's harm please do not hesitate to point it out so we can address it!

You be the judge.

Wednesday, January 11, 2017

Why Amazon Inc. will ultimately fail

I've read somewhere (or just made up, I can't say for sure) that by the time an empire reaches its full glory it's decay has already begun.

If that is true then Amazon Inc will definitely fail and I am not here to whine about it, but to show you something I myself find amusing more than anything else.

Consider this page with listings Amazon:


The odd thing in this page, other than us having listed merely 5 items, is the shipping cost assigned by Amazon for one of the listed boards.

Unlike eBay Amazon does not ask us what shipping is, they calculate it based on the data they have which a reliable source has provided and their team of specialists has verified and approved.

So after about 6 exchanges with support, which alone are worth posting, but I'll skip them for sake of keeping this short, eventually they asked us for proof that the board is not 900 pounds as their database shows (they have the picture, of course).

So we sent them this video showing actual measuring of the board:



I'd lie if I say I didn't expect something along the lines that was received in response.

Here it is, with a screenshot so there are no modifications at all in the message (added the red underlining):


Were they just getting back at me?

Considering it took them 6 very normal exchanges to get to here, each from different person and at least 2 times not on the subject matter at all you'd also doubt.

And this is the amusing part - I don't know if they were just getting back because of the video or they are just THAT incompetent.

I think it doesn't matter.

Unbelievably successful as it is Amazon's decay has already started.