The complaint of the LG speaker was no sound. Usually when a speaker does not produce sound there can only be two reasons. It is either the speaker wire broken internally (or loose connection) or the speaker itself had an open circuit.
The complaint of this Philips Audio/video system model FW-V520 was very low sound on both speakers even though the volume already adjusted to maximum.
The complaint of this Hachi DVD player was no power. Once the cover was removed I could see the power supply, mainboard and the Tray assembly-see the photo below:
This Philips LCD TV came in with the complaint of no display but the power LED light was green color and not red. If the power LED is green color then fault can be easy to diagnose. If the power LED is red color then possible the problem in power supply or the mainboard or even both. If the firmware is corrupted, the power LED also can be red color. Read More
The complaint of this LG CRT TV was no power and as usual the first thing to do is to check on the main fuse. Before I could access to the main fuse, I found that the circuit board was full of dust thus I cleared all dust first by using a vacuum cleaner before checking on the main fuse.