Tuesday, May 25, 2010

Sylvania LD320SS8 LCD TV, Repaired



A Sylvania LD320SS8 LCD TV came into the shop that would turn on for a few seconds and then turn off and go back into standby mode. This type of failure is often caused in LCD TVs by the inverter board failing or a bad CCFL. After testing the CCFLs and the components in the inverter section of the inverter/PSU board I found a HV transformer in the inverter section location T1100, with an open secondary coil. Watch the videos on youtube for more info. Have a great day and remember you can always email me john@preher-tech.com with any questions.



 Picture of HVT in inverter/PSU board


Click here to download the complete repair article if PDF format.



You may also be interested in our LCD TV Repair Guide. Click here to read more.


Remember to visit www.preher-tech.com for great electronics repair info and electronics repair service.

Saturday, May 8, 2010

Electronics Repair Universe

Announcing our new electronics repair forum, Electronics Repair Universe. Come and register today. If you have an idea for a new topic let me know and I will add it. The site is still in the process of being built but you can join and start posting now.



Click here to go to the Electronics Repair Universe.

ESR micro v4.0

My good friend Mike Klykov from Radio Devices in Russia has released a new version of his ESR micro, the ESR micro v4.0. I will be recieving one soon for myself and will definately do a review.



If you want to go to the sales page click here.




If you want to read the users guide click here.




If you own an ESR micro v4.0 please leave a comment on the device and how it has worked for you.

Friday, May 7, 2010

X and Y Capacitors

Here is a great article on X and Y capacitors used in EMI/RFI filter circuits found in SMPS etc. If you have any questions please email john@preher-tech.com.



And another great article on X and Y capacitors can be found here.




Thursday, May 6, 2010

New electronics repair tips website

Come check out our new website and Blog on Weebly. We will be putting lot's of great tips on this site so come back often.

Preher-Tech's electronics repair tips

Monday, May 3, 2010

The BJT(Bipolar Junction Transistor)







Here is a good article on BJT or Bipolar Junction Transistor basics. Read it here at electronics tutorials.ws

LCD TV Repair Guide

Again mentioning this great guide on LCD TV repair "Troubleshooting and Repairing LCD TVs" By: John Preher. This comprehensive easy to read 195 page guide has now sold in over 12 different countries to thousands of consumers and technicians who have benefited from this great book. Get a copy today for only $25.00, this book pays for itself with your first LCD TV repair. If you have any questions just email me john@preher-tech.com.


Read more about the LCD TV Repair Guide by visiting the LCD TV Repair Guide page.


Saturday, May 1, 2010

My new AMPROBE 37XR-A digital multimeter

I got a new AMPROBE 37XR-A digital multimeter and I have been enjoying it so much I thought I would share it with everone. This meter is very rugged and very well designed. I would recommend this meter to anyone looking for a new high quality meter.



Available at amazon.com, AMPROBE 37XR-A