Firmware Software

Here is a decent looking LCD TV/monitor that would no longer turn on. I expected a few capacitors etc. that needed to be replaced. In this case, it was a single diode at the cost of 29cents and a bit of over 1 hour of labor. It also shows the importance of a good visual inspection. A new power board for this TV would have cost somewhere around 100$ Step 1  — Power board  Here is the LG 17LX1R that will no longer turn on. Remove the cover from the stand by simply pressing down on the two tabs. The cover will come off easily Remove the four screws that hold the stand assembly to the chassis. Step 2   Here again are the four screws to be removed from the stand. Remove the eight Phillips screws that hold the back to the chassis. Once the screws are removed, the back will simply snap off. No excessive force or tools are needed. This is the view with the back off. Time to remove the metal shield. It is fastened with six Phillips screws. Step 3   Remove the two on the left ...

Olevia 237-T11 power AEP016-37 testing and repair   Download Full Topic This is a quick pictorial guide on how to test the power supply AEP016-37 found in Olevia 237-T11 and the rest Olevia models that use the same power supply board. The AEP016-37 power supply is not labeled , but is known to fail and if your Olevia 237-T11 (or other that use it) does not want to start up it may or may not be because of the power supply in it. One nice way to avoid spending time and money is to just test the power supply out of the box and see if it produces the necessary voltages. All you need is a simple voltmeter and some patience. Of course along the way you will also be on the lookout for swollen / bulged capacitors. Here is how AEP016-37 looks: There are four bad capacitors on that picture, but because the picture was taken directly from the top it is not possible to see the bulging. Yet you can see the electrolyte spilled on top on some of them. If you find bulging capacitors you sh...

LG 50PG20 not turning on, is power board EAY41360901 bad?      LG 50PG20 no turn on  when you hit the power button only makes just clicks up front and LED changes from red to blue and back to red with another click I measure the voltages on vs, va, 15v, 12v 5v everyone is present only momentarily.  YSUS checked and not short, I also checked with ZSUS and neither is shorted.  There are two different power boards for LG 50PG20 that I am aware of and they are both compatible and suitable for this test. The more popular is EAY41360901. All you need to verify essential functionality of the board is  disconnect  all cables from it except from the main AC power cable. To do that safely, first disconnect the TV from the AC outlet, let it stay 5-10 minutes so that the large capacitors on the power board discharge to low enough voltage. Then you can disconnect all cables on the signal connectors on the board leaving only the main AC cable connecte...

Important Circuits and Components Found in LCD TV’s These are some of the common parts and components we may found inside a LCD TV. Let us familiarize on some of the  parts inside  the LCD TV. I only show some photos and not included the troubleshooting guide on  how to repair  some common problems that might be found in this kind of units. Typical LCD TV  Power Supply Board LCD TV Main LCD TV controller/t-con board

HDMI Not working? How to protect them from surge damage. HDMI not working after a power surge is one of the more common things I see as a TV tech. When a power surge comes through HDMI, you could have one port stop working, all HDMI ports, or even a TV that won't turn on. HDMI produces the highest quality Video and Audio today, but failing to take special precautions to protect these ports can lead to very expensive repairs. Hopefully you are here before this has happened to you, but if not, I'll show you some ways to protect yourself in the future. The most important thing to remember,,,,HDMI damage can occur  even if your TV is unplugged from the wall . Read on to see how to prevent it, it doesn't have to be expensive. Think of electricity from a power surge like a person walking into your house. The power cord is the front door, HDMI (or any signal source) is the back. Of these, HDMI is the most sensitive to power surges. Are your doors open? HDMI not working prevention,...

DELL LCD TELEVISION REPAIR TIPS Dell w2600: no start-up after warm-up Model/s: dell w2600 lcd tv Symptom: no start-up after warm-up Cure/solutions: replace capacitor (10uf/50v ) on small board mounted to power supply next to main-board power connector. Dell w2600: display locks after 10 minutes Model/s: dell w2600 lcd tv Symptom: locks after 10 minutes Cure/solutions: change regulator ic (lm1117 dt-2.5) on main-board

Hitachi LCD Repair Tips 15LD2200  -No-Fuse F1 pictures and C16 or C5 (150N) on the inverter board -No picture-check fuse F1 and C16 or C5 (15 on) on the inverter board 22LD4200  -Lost picture after diferent time-Dry joints IC100 on board video processor (17MB10). -Figure disappear after a while-check the connection on the video processor on board IC 100 22LD4200-  No pictures sound ok, no pictures after diferent time on 17amp07 CHECK 5v p / s board if less 3.0 or 1.5 replaced C111 (25v1000mkgf) -There is no sound good picture, no picture after a while check TEG 5v on board 17amp07 p / s if less dar ata 1.5v 3v switch c11 (1000mkgf 25v) 22LD4200  -Lines on the picture Bad conection between PS (PL108) and the video board (PL100). -The line in the figure because of a bad connection between the PS (PL108) and Board video (PL100) 22LD4200   -line-Green Flashing green horizontal line across the screen intermittently flashing-Remove resistor R149 on the input signal bo...

Thanks to DinDik Electronics The image is blurred or Negative types images are increasingly graying faintly visible  damage occurs in the IT block-CON (timing control) and I found Faulty ICAS15G

Repairing Samsung LA40R81BD 40in LCD TV Power Supply (clicking Relay Symptom)     Samsung Power Supply (clicking Relay Symptom) Inspect all electrolytic capacitors on the power supply board and replace any that are bulging or leaking. On my board there were 2ea 2200uf capacitors that were bulging. Remove the old capacitors ensuring you don't overheat or damage the copper pads/tracks on the circuit board Take care to ensure you install the new capacitors correctly. They are polarity sensitive and the board and capacitors will be clearly marked which way they should be inserted. You may want to check and replace any adjacent capacitors that are rated 10V as these seem to be the ones likely to fail. ...