Question about Gateway (6500683) 160-Watt Power Supply

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Gateway Profile 4 PS Have 20 bad units that need fixing!

Thought it was just a blown fuse, but no. Some have ramping problems that go from almost zero to 12 volts on a digital meter, and then drop back down repeatedly (power LED goes dim and then bright). Some have no DC output, and I had also replaced a few N channel MOSFETs that were burned out (soot evident) and attached to a thick heat sink. After replacing some of the smaller TO220 sized chips, still no DC. These are all mostly Delta ADP180 power modules like the photo. Some have a power LED and some don't. Even invested in some hard to find MOSFETS (from ST Microdevices) for these, in hopes that just replacing the chips would fix some of the problems. I do hear a 'click' (like a spark sound) when I plug in an AC cord so I know power is going in, but it never gets to the DC out end.

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  • kenrogers Jun 21, 2008

    would not like to waste $1600 for new power supplies

  • kenrogers Jun 22, 2008

    too expensive over $1600 in money needed to replace the units

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In today's times most people don't service power supplies because they can catch on fire at anytime and with the litigious society we live in today, it isn't worth it to do it.

The best way to fix the problem is to get a new one.



Posted on Jun 21, 2008

  • Tim Babcock
    Tim Babcock Jun 22, 2008

    Wow thats some dough. I see your point there.



    Good luck on that.



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How do i know if the 100 amp main fuse is blown


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follow this steps and test it. God bless you

  1. Inspect the power cordUnplug the power cord and check for voltage at the outlet. Also inspect for damage, shorts, or burn marks that can be a possible safety hazard.
  2. Bad door switchIf your microwave does not work at all and you know everything is plugged in properly and the outlet is functioning, then also check the door hooks and the door release button. Using a volt-ohm meter on RX1, check your terminals. When your microwave door is closed you should have a reading of zero. Once the door is open the reading should change to infinity. If these readings do not match up, replacement of the door switch is necessary.
  3. Blown fusesTo determine if your fuse has blown out, which may attribute to your microwave not running, you need to pull the fuse out using a pair of fuse pullers. Lay it down and using a volt-ohm meter on RX1, check both ends of the fuse in question. If you do not get a reading of zero, then you will need to replace the fuse.
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Read more: http://www.appliancepartspros.com/repair-help/microwave-repair-help.html#1#ixzz2gUR97IFo
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I have a jvc kds-16 receiver. It has been working for about 5 months with no issues. Now there is power to the head unit but I have no sound. I have checked all of the connections, nothing is loose, the...


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you can also check the yellow wire on radio it should have 12 volts allways doesnt matter if car in off or running this saves memory for clock and station presets.

if every thing is test out right then you need to buy new radio ..

if you dont feel good about doing this yourself find a mecp car audio installer and have them troubleshoot your problem maybe expensive but a good tech could find out problem with in the first 30 to 45 minutes it get 35.00 per hour to troubleshoot car audio system ...


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you must have a digital volt meter and to find this out .
1. remove radio
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3 take the black test lead and put it on ground for the radio it will be black find in harness on back of radio .
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if no power at yellow wire go to fuse panel and use your digital voltmeter to check fuses for a blow fuse . take the meter turn it on meter to dc voltage and the take black test lead and find a good ground (clean piece of metal and then the red test lead start touching testing the fuses.


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on the fuse there is the amp rating in the dead center on either side of the rating is the blads of the fuse expose to test the fuse touch the red test lead to the left and see if you get 12 volts. then test the right side of the fuse to see if you get 12 volts if not fuse is blown . do this to all the fuses untile you find a blow fuse you could just pull one fuse at a time untile you find blow fuse. if you do this make sure right amp fuse get back to the right spot in fuse pannel. if not you could have a fire maybe or melt something in car if a circuit fails and goes to blow fuse and fuse is too big and fuse doesnt blow ....

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