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THE DEVICE IS NOT LISTED THIS IS A “JBL CINEMA SB160” Hello thank you for looking at my post I looked everywhere on the web and couldn’t find a solution. I have two JBL soundbars and sub woofers both the same model JBL cinema sb160. One works one doesn’t! I replaced the dead fuses in the main plug to the soundbar for both my sb and woofer this was caused by a faulty power rail that is now replaced. Sound bar does not turn on when plugged in to mains, has no lights or response to inputs. Sub woofer has a flashing light and pairs with my identical sound bar.I tested the output of the sb power supply disconnected from the motherboard pcb. It has a 17.5V output. The plug says it is rated for 30W and 2.5A. Does this seem right or can I use a laptop charger perhaps 12V for this to work? OR is the motherboard pcb faulty and i scrap the thing. TLDR: The plug is rated for 30W and 2.5A but the power supply reads 17.5V disconnected from the mb pcb does this seem right? Close up shots of the power supply:
Yes my power supply did need to be replaced. I have been using a generic laptop charger 40W 19V 2.1A. It has been working great for the past 2 months now. Soldered the terminals right on the mother board using the old power supply socket and works like new. Thanks to @jayeff for guiding me!
Hi @scarlettv , What does the power supply measure in the working unit, if you test it the same way? The plug rating may not be directly related with the actual voltage/current values supplied by the power supply. It may that they’re less but the plug is designed to electrically handle the values stated on the plug, if you get what I mean i.e. they’re max values for the plug 30W @ 17.5V = 1.72A 30W @ 2.5A = 12V 2.5A @ 17.5V = 43.75W The first two equations above would comply with the plug rating, but not the last
