Repair Tools | Ronelex Personal Blog

Making Our Very Own Isolation Transformer

Posted by ronelex 0 Responses

According to Wikipedia, "An isolation transformer is a transformer used to transfer electrical power from a source of alternating current (AC) power to some equipment or device while isolating the powered device from the power source, usually for safety." [caption id="attachment_145" align="aligncenter" width="498"] Photo Credits to: Mi25[/caption] Circuit Diagram of Isolation Transformer Using Two Transformer Making our very own... [ Continue reading... ]

Nov

Easy Way of Testing a Laptop Backlight(CCFL) and Inverter

Posted by ronelex 14 Responses

We will be concentrating on LCD Inverter and CCFL bulb. Laptop with black screen problem is commonly caused by: 1. a defective backlight, which is the cold cathode fluorescent lamp(CCFL) bulb 2. defective laptop's inverter board 3. no video output going to the LCD Screen It is not an easy job repairing laptops specially if we don't have parts that we can use to replace to the parts we are suspecting to be the culprit. So now, we... [ Continue reading... ]