All posts tagged "power supply repair"
SMPS Of Running Display Failed Due To Defective PWM 3842 IC
This SMPS was brought to me by my Techie Friend, who could not find time to troubleshoot this due to heavy load of work. This SMPS was of the...
- Posted October 27, 2020
Replacing Working Components In Switch Mode Power Supply
The OLAN 22″LCD TV came in with the complaint of no power symptom. Once the cover was removed I saw four circuit boards: Inverter Board Power Supply Board Main board USB...
- Posted March 23, 2020
Main SMPS Transformer Overheated
A client sent me his keyboard’s power supply via postage to see if I could repair it. It is from a very old Roland Keyboard. The...
- Posted May 21, 2019
KD -120-12 Power Supply Repaired (Replaced Few Bad Components)
I received this power supply for repair. The owner of the machine told me this accident has happened: While he was giving water to plants, water...
- Posted May 17, 2019
Day Light Switch Repair
I got a simple device from a customer who told me does he bought several of them and after a while they start to die. These...
- Posted February 6, 2019
13007 Power Transistor, Faulty Diodes and a Capacitor Found In Self Made LED Porch Light
This is a generally available Power Supply that can take around 2A load usually used for LED Serial Lights. I had bought one along with a ready made...
- Posted December 18, 2018
12 volt 5 Amp SMPS Repaired
The complaint of this small switch mode power supply (SMPS) with the output of 12 volt and 5 amp was no dc output. I powered it up...
- Posted October 19, 2018
12V, 5A LED Driver SMPS Repaired
One of my friends had informed me a few months back that one side of the Serial LED lights do not light up. When I went there and saw,...
- Posted November 9, 2016