29 Mar '13, 3pm

DVD power supply repair tips

DVD power supply repair tips

Obviously this starts by cracking open the dead device and verifying that the culprit is the power supply. [Alan] then removes that board from the chassis and gets down to work with a visual inspection. He’s got several images which illustrate things to look for; blistered electrolytic capacitors, cracked solder joins, scorch marks, etc. In his case there’s obviously a burnt out fuse, but that merely protects the hardware from further damage, it’s not the cause. Next he examines the diodes of the bridge rectifier. These need to be removed from the system to do so, which he accomplishes by clipping one end of each as seen above. He found that two diodes on one side of the bridge had broken down. After replacing them he tries a new fuse which immediately burns out. But a quick swap of the capacitors and he gets the thing back up and running.

Full article: http://hackaday.com/2013/03/29/dvd-power-supply-repair-tips/

Tweets

HTC One: Great Build Quality but Almost Impossible to Repair

HTC One: Great Build Quality but Almost Impossi...

soyacincau.com 30 Mar '13, 12am

The battery is buried beneath the motherboard and adhered to the midframe, hindering its replacement. The display assembly...

Rooftop Solar Could Power All Australia Homes (& More)

Rooftop Solar Could Power All Australia Homes (...

cleantechnica.com 29 Mar '13, 3pm

Australia solar rooftops via Shutterstock What would happen if every Australian household installed solar PV on their roof...

How Levi's includes worker well-being in supply...

greenbiz.com 29 Mar '13, 1pm

This post is the second in a two-part series by Andrea Moffat, vice president of corporate programs at Ceres, describing h...

Islandable Solar—PV For Power Outages - EBN: 22...

buildinggreen.com 30 Mar '13, 11am

With the right technology, a grid-connected solar-electric system can still provide electricity during power outages. This...

Crayon Burger Commercial Food Photography Tips & Tricks #food #photography #tips #photographer #foodphotography

Crayon Burger Commercial Food Photography Tips ...

feeqsays.com 02 Apr '13, 5am

When it comes to food photography, a lot of people have misconception about how the photographer prepares the food and tur...

My Power Rankings for the @valerotxopen: ♦ Wild...

pgatour.com 01 Apr '13, 8pm

Now in its fourth year hosting the Valero Texas Open, the par-72 AT&T Oaks Course at TPC San Antonio is maturing. It's no ...

Lite-On Technology to ship power supply systems...

digitimes.com 01 Apr '13, 4am

Taiwan-based EMS provider Lite-On Technology will begin to ship customized total power supply systems for use in cloud com...

Two important tips for first-time authors. A gr...

streetdirectory.com 30 Mar '13, 5pm

At this point you are probably wondering where to get started, who to contact, how to even take the first step. Don’t worr...

Residential Solar Power Heads Toward Grid Parity

spectrum.ieee.org 30 Mar '13, 9pm

Source: Institute for Local Self-Reliance SOLAR SPREAD: Bright sun and high utility rates help rooftop solar energy compet...

Wake up on the beautiful side of the bed with t...

michellephan.com 25 Mar '13, 4pm

Nighttime is when your body and its cells repair themselves. While you’re far away in dreamland, your body is busy beautif...

Residential Solar Power Heads Toward Grid Parity

spectrum.ieee.org 28 Mar '13, 2pm

Source: Institute for Local Self-Reliance SOLAR SPREAD: Bright sun and high utility rates help rooftop solar energy compet...

How Sony strengthened its supply chain and added value

How Sony strengthened its supply chain and adde...

greenbiz.com 28 Mar '13, 3pm

How the largest IT companies view sustainable supply chain issues ,” discussed matters that survey respondents identified ...