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Problem for Boomboxes
Generic problem for all Boomboxes
My JVC RV-B90 Boombox was plugged in and...
By propellerld3 on Jul 13, 2009
My JVC RV-B90 Boombox was plugged in and working great, now it will not power on. I checked the fuses and all are ok. What else could it be?
How can I check the power supply to determine if it is the problem?
How can I check the power supply to determine if it is the problem?
Solution #1
posted on Jul 13, 2009
Hiya i dont recommend that you try this without experience but if you want to give it a bash then great. (please keep in mind that slipping with meter probes could make things much worse and there is risk of shock) Thats my disclaim :) ... On the power board/ PC board, look for the 2 largest capacitors. The y will be PS caps. With a multi meter set to DC, test acroos one cap then the other (one at a time) There voltages should be the same in value more or less and the voltage should be around 30- 40 V. There will also be another supply of around 12V but cannot tell you where to look for that without seeing. If all fails, send me a pic and will point you in direction. Best of luck
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