I have a power problem with my JBL Encounter system. Since I played it very successfully on Saturday night with some marvellous music, it is no longer working. I have check the fuse in the plug and replaced it with no effect. The small green power light does not come on even pressing the on/off switch repeatedly, and there's no sound at all. What do I do please? best Lew Llewellyn

The same happened to me. The 5amp fuse soldered to the small circuit board in the power supply had blown. When replaced, I got my 18v AC output again, however when I plugged it back in to the speakers, the fuse blew again! Possibly the output amp has failed as the left and right speaker output pins are shorted.

Hello
its power supply section has failed. you have to look into it for further trouble. Replacing fuse or line chord won't give you any result. you have to check wit whether the transformer faulure has occured or not. If it is fitted with a mains transformer, it will have a thermal fuse in it imbeded in between its primary and secondary windings placed inside the transformer and can be accessable if it is taken out. It is meant for to block the transformer woring, if it does overheats due to long run at high volume. Check from this and proceed. you must have a sound knoledge in electroncis and have a concept of soldering to do this work. OK.