Category Archives: Grants Pass TV Repair

Troubleshooting bad circuits using ohms law.

http://davestv.jestinemichellepow.click2sell.eu When ohms law was first explained to me, I was clueless about how it could actually be useful in real life. Even though the math was simple enough, somehow I failed to grasp how it could be useful in troubleshooting or designing circuits. Fortunately a situation Continue reading Troubleshooting bad circuits using ohms law.

Understanding the hot and cold side of a switch mode power supply.

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Beginners in electronic troubleshooting often make the mistake of testing voltages from the wrong ground, so I thought it would be a good idea to cover this in greater detail. Jestine Yong published a book on switch mode power supplies which I found to be very helpful Continue reading Understanding the hot and cold side of a switch mode power supply.

Isolation Transformers can save your life, and your equipment.

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I discovered their importance of Isolation Transformers in the school of hard knocks. At that time of this educational experience I had just started working as an apprentice in a television repair shop, and my boss asked me to hook up a our oscilloscope to a TV he was repairing. Continue reading Isolation Transformers can save your life, and your equipment.

Using freeze spray or hot air to troubleshoot Circuit Boards and LCD display problems.

There have been many occasions where I’ve found hot air and or freeze spray can be helpful in troubleshooting intermittent circuit board issues, or intermittent LCD displays problems. Here was one such instance where I applied a little heat to the edge of the display, and observed that the Continue reading Using freeze spray or hot air to troubleshoot Circuit Boards and LCD display problems.

Dental Equipment Repair. Water damage.

One of the nice things about learning how to troubleshoot Televisions is many of the troubleshooting skills we learned can apply to repairing a variety of other devices. In this case a Dentist brought in a motorized shaker used to mix amalgam fillings.
While examining the circuit board I noticed a Continue reading Dental Equipment Repair. Water damage.

important update on conductive paint Vs restoring pad.

After publishing my last video on repairing remote controls using conductive paint, I received some important information in the comment section of my video, I was informed by ExStatic Bass that the carbon impregnated rubber can often be restored by roughing it up with paper. I don’t know if Continue reading important update on conductive paint Vs restoring pad.

2006 Hummer H3 window and door lock controls. Update. Please read comments.

Update!!! Shortly after I published this video one of my viewers wrote to inform me he has had success by sanding the carbon impregnated rubber rather than re-coating them with conductive paint. Because I have seen some remotes which no amount of cleaning could restore, I don’t know if that Continue reading 2006 Hummer H3 window and door lock controls. Update. Please read comments.