This presentation fixes the power supply of a DVD player, however the skills transcend this application. [Alan] walks us with the process of repairing a power supply (translated) on a easy consumer electronics unit.

Obviously this starts by cracking open the dead gadget as well as verifying that the culprit is the power supply. [Alan] then removes that board from the chassis as well as gets down to work with a visual inspection. He’s got a number of pictures which show things to look for; blistered electrolytic capacitors, cracked solder joins, scorch marks, etc. In his situation there’s certainly a stressed out fuse, however that simply protects the hardware from even more damage, it’s not the cause. next he examines the diodes of the bridge rectifier. These requirement to be eliminated from the system to do so, which he accomplishes by clipping one end of each as seen above. He discovered that two diodes on one side of the bridge had damaged down. After replacing them he tries a new fuse which instantly burns out. however a quick switch of the capacitors as well as he gets the thing back up as well as running.

We liven up each time we see this type of repair work hack. We figure if we can develop our own pastime electronics we ought to be able to repair the inexpensive gadgets such as this one.