Repair Video: Olevia 42-inch Flat Screen LCD TV “Bad Caps” Repair

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Here’s a quick video post tackling a very common issue in many aging LCD TV’s power supply board: the bad capacitor problem. This repair was performed on an 42-inch Olevia LCD flat screen TV (model 242-T11) that its owner picked it up as it was being discarded. Upon checking, it turns out that 7-8 capacitors may have been blown as they were showing bulges. One thing to note is that the repair guy (bunnspecial of Youtube) is an amateur electronics enthusiast with not much experience doing such repair. He said he has done one other successful similar fix before this video. Hence, this should be a relatively easy fix even for a beginner. If you are a beginner, don’t forget safety first.

You’ll need some soldering skills to get the bad capacitors out and then install the new ones. You could use a solder sucker to get those solders squeaky clean before installing the new components but that isn’t absolutely necessary.

Related: Where to buy replacement TV parts?

Cost of components is about $19 for getting all the capacitors needed for the TV unit model (Olevia 242-T11). You can order them online which is pretty convenient or just go to an electronics shop and look for TV repair kits available for the TV. You’ll notice though that bunnspecial only replaced the bad capacitors. One other option is to replace all the capacitors so all of them will be brand new.

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This water-damaged Sony Bravia LED TV is a hopeless repair?

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[SEE VIDEO BELOW]
Here’s a good tip: if you get your TV wet, rush it to a TV repair professional! Immediately unplug the unit and don’t ever turn it on until it’s certified fixed by a tech.

Unfortunately, this is a hard lesson learned by the owner of a Sony LED LCD TV owner who probably thought there was no harm done when he/she got his unit watered down. Obviously, he was wrong as the video by norcal715 of Youtube clearly shows. Unit is a 40-inch Sony Bravia, relatively new (manufactured in 2010) and looked like it. It’s an LED model which means it uses LED backlighting technology which makes it thinner and lighter and more power efficient.

Well, the expensive problem came about when the unit got wet but owner just kept using it. In truth, water seeped down to LCD panel circuits at the bottom of the unit and stayed there while the unit was used. And so they found out the hard way that electricity, water and circuitry don’t really mix as the continued flow of electricity through wet circuits produced a process called electrolysis. This corroded or ate up the copper in the circuits which basically destroyed the TV.

As norcal715 suggested, this unit is headed for the scrappers. You could probably replace the LCD screen panel but that would be a very expensive route. One option is to try and look for a “for parts” unit with a good LCD screen display and circuits being sold on eBay and the likes, and get a good tech to install it for you. I guess that’s one option worth looking into if buying a new one is currently not an option. Or you could buy brand new from a cheaper brand.

Read follow up post: Reader says this Sony Bravia can be fixed!

Watch video:

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Repair Video: Faulty Power Supply on a Vizio SV420XVT1a LCD Flat Screen

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Okay here’s a really good video to help folks fix the power supply on a 42-inch Vizio LCD flat screen television (Model SV420XVT1a). Basically the problem becomes evident when you turn on the unit. You will see the Vizio insignia LED power indicator go up but see no images and screen will just be a complete blackout. The video gives a nice Macgyver tip on how to determine whether it’s just the backlight and/or the LCD screen that are/is out using a small flashlight.

Video teaches how you can repair the TV’s power supply module (part #0500-0405-0270) by replacing the bad components. You can of course opt to just replace the entire power supply but why do that when you can replace just a few parts, save some money and get the TV working again.

This video (which can be played in good quality HD) is intermediate level so be sure you know you can handle the safety aspects of the fix before going into it. Some soldering deftness is also needed because the components that you’ll need to work on are pretty small. You’ll need a multimeter for this repair.

Video will show you how to replace 5 problem parts: 1 pc. Field Effect Transistor (FET), 1 pc. FET driver IC and 3 resistors. Other tools you need includes a dental pick (to help you pry those tiny blown out resistors loose), some acetone and a small brush that you can use to clean the circuit boards (see video on how it’s used).

Related: How to find burnt resistor values by Jestine Yong

Video follows:

Thanks to norcal715 of Youtube for this repair video.

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Repair Video: Panasonic Plasma TV w/ LED Blinking Problem (Model TH-42PZ77U)

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Is your Panasonic plasma unit not powering up? Here’s a repair suggestion from Gavin Curtis of Youtube where he shows a way to fix the Panasonic TH-42PZ77U or TH-42PZ700U with a problem signaled by 10 blinks of the LED power indicator. If you’re unit is doing that then here’s a possible solution.

Note though that this is only one possible fix and that there may be other causes or issues that need looking into but Mr. Curtis say this has worked okay from his experience. Video was created with the non-technical people in mind which makes it an ideal instructional for anyone performing a DIY repair or those trying to learn electronics troubleshooting or just want their plasma TV units working again without having to spend a fortune on professional servicing. It’s relatively a simple fix that requires no parts replacement so apart from disassembling the TV unit to get to the circuit board in question, no further surgical operation is needed. But you do need to have some soldering skills to perform a hack on the board to correct the fault caused by an open thermal fuse (caused by overheating) inside a transformer (part # BZ16GA) on the circuit board. The video will teach you a hack to fix the open thermal fuse without having to dig up the fuse itself to replace it.

Related article: Repairing Planar PDP42B and Hyundai 4240 Plasma TVs

Materials that you need for this repair:

  1. Thermal fuse (Radioshack item # 2701320)
  2. 2 pices of 9 to 10 inches 20-22 gauge wire
  3. High temperature RTV silicone (Permatex item number 81160)
  4. Automotive butt & end connectors (Important tip: use the butt connectors to connect the wires to the thermal fuse instead of soldering them together. Soldering could trip the thermal fuse.)

Watch the video below (if you’re having some difficulty understanding some of the technical language used, you may want to take this plasma TV repair beginners training by Kent Liew first):

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Fixing an LG 55LV4400 LED TV that won’t power up

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Here’s a nice little video on how to repair an LG LED television that refuses to turn on. The procedure was performed by the flat screen TV’s owner who also happens to be an electrical engineer and he found out about how to solve the problem online. It turns out the problem was pretty common for similar LG units and that it is usually caused by a faulty chip on the TV’s main board. The video suggests that you can either replace the main board itself or simply replace the busted chip with a new one. Since a brand new main board costs approximately $200, he chose to just replace the chip which only costs less than $20 online.

What’s interesting to note is that the unit is just a little over 1 year old from its manufacturing date so it’s relatively a young unit that went bonkers. Goes to show the quality (or lack thereof) of components manufacturing companies use for their products.

Also read: Learn How to Solder (9-Part Video Lesson)

2 IN 1 SMD HOT AIR REWORK SOLDERING IRON STATION with 2 iron handles

2 IN 1 SMD HOT AIR REWORK SOLDERING IRON STATION with 2 iron handles

This repair will require a little bit of soldering skills so you will need a soldering equipment to achieve the results. In fact, you’ll need one that has a hot air blower like this 2-in-1 SMD Hot Air Rework Soldering Iron Station which you can get in Amazon as you will need the blower to remove the chip from its soldered mount. A replacement chip can be obtained online and the model name according to the video author is a Macronix MX25L6406 which is a flash chip that contains proprietary firmware/program required by the LED LCD television. You can buy a blank chip for a much cheaper price of just a little over $2 but you can also get ones that already contains the program needed by the TV for about $17. You may need to use an EEPROM programmer to backup the contents/program in the chip before you proceed as a backup. Other specialized equipment that you may need is a stereo microscope as the chip is really small and alignment is critical in the installation process.

Safety first, guys! Don’t do this repair if you’re not well-equipped and don’t know what you’re doing. Soldering equipment produce high amounts of heat and you can get yourself burned or electrocuted if you’re not careful.

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The Podnutz Laptop Repair Video Collection – Fix Those Laptops!

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Here’s another nifty repair training that you can get online aside from the DIY LCD TV repair, plasma TV repair and LCD monitor repair courses (among others— please see sidebar navigation) that you will find on this website. The Podnutz Laptop Repair Video Collection is a collection of videos intended for those who are looking to learn how to fix laptops and notebook computers.

If you have a faulty or malfunctioning laptop and happen to be the do-it-yourself type who has a knack for repairing electronics, then this video collection will certainly be a big boost to your repair project. If you are a practicing electronics or computer repair technician and are willing to expand your knowledge base, then these videos will also help.

This Podnutz set offers video instructional on the following:

  • Fix LCD screens – Learn how to repair and replace LCD screen. Learn how to determine whether the problem is rooted to a problem with the screen itself or the inverter board. This is very important technical skill that should be learned by all repair technicians.
  • Replace motherboards – This one is something that scares most novice computer technicians and one that certainly makes most DIY enthusiasts think twice. The Podnutz videos will shatter all apprehensions regarding this somewhat delicate surgical procedure.
  • Methodically take a laptop apart – An all-important skill that must be learned before fixing a laptop computer is how to make sure that you take it apart such that you will learn how to put them back together again. Podnutz gives you a video to solve all your fears!
  • Fix AC adapters and DC power jacks – A basic yet important skill that helps you save money by teaching you how to fix faulty power cords, adapters and jacks.
  • Repair notebooks that have been spilled over by coffee, water or any liquid – This happens more than we think so this will surely come in handy. The Podnutz video set will show you how to handle this problem.
  • Replace other laptop parts (e.g. CD or DVD drives, hard disk drives, RAM and central processors)
  • Basic electronics troubleshooting and repair skills – The video set also provides instructions on basic repair skills like soldering and electronic testing. Soldering is a skill that should be learned by anyone looking to dabble in any laptop or electronic repair endeavor.
  • And a lot, lot more!!! – And by a lot, lot more I truly mean a LOT more! This particular Podnutz collection is composed of videos with a length that adds up to 10 hours of high-definition watching pleasure. It is composed of 40+ separate videos that tackles every important thing that you need to learn as far as learning how to fix notebook computers are concerned. The videos also offer an informative introduction, information on the required tools, a primer on laptop batteries, etc. It will also offer brand specific solutions like:

– Solving power problems and replacing the keyboard on a Gateway laptop
– Fixing a Toshiba, Gateway and Dell B130 laptop power jack
– Motherboard replacement on a HP DV6000
– Solving the “key not working” problem and fixing the ribbon on a Sony Vaio
– Testing a hard disk drive using Knoppix
– Replacing cracked LCD screen and cover on an Aspire 3680 and 3610, respectively
– Dealing with boot up problems on a HP DV6000
– Replacing the keyboard and screen back cover on a Dell Inspiron 1521
– Fixing and replacing the screen on a Toughbook CF-W5
– Etc.

If you are serious about any DIY laptop repair project or about your skill as professional technician, then you would do well to acquire access to the Podnutz video collection. If you wish to find out more about it and wish to see the testimonials of people it has helped, please don’t hesitate to check out their home page HERE.

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