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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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I have pr JBL Platinum PC speakers but no power supply. Power conn shows
12.0 volts, 1.0 amp. No polarity shown for barrel connector. Which one is +? Inside or barrel? LB |
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On Wed, 27 Apr 2005 12:11:34 -0500, "LB" lb put finger to keyboard
and composed: I have pr JBL Platinum PC speakers but no power supply. Power conn shows 12.0 volts, 1.0 amp. No polarity shown for barrel connector. Which one is +? Inside or barrel? Open up the speaker and look for a filter capacitor. The polarity of the cap should tell you what you need to know. - Franc Zabkar -- Please remove one 's' from my address when replying by email. |
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