Tv had a small tip over but no power seems to reach the main board. Also noticed 2 small scorch marks on mainboard
SOURCE: Sharp LC-45D40U Won't Power On! Need Help!
If doesn't give error code most probably is something wrong with 5 and 3.3 volts lines. Check first the power supply and try to start the tv with all connectors removed. Let only the one between main pcb and power supply. Look for shorted voltages lines.
SOURCE: black marks on carpet
http://geeksquad.fixya.com/ThreadView.aspx?prdid=19810&thid=706295
Black marks on carpet
posted by carpetburner on Jun 25, 2008
While I was walking on the carpet, I noticed a couple of black marks. I figured it was on someone shoes. I was vacuum a couple of days later and stated noticing small black marks on the right side of the brush marks left in the carpet by the brushes. I tried to clean them and they don't come out. They are sort of like a scorched pinched place or something. I had the handyman take it apart and he found nothing stuck in it, belt was replaced not to long ago, and he said everything looked fine. The black marks are not on the belt side. Maybe a wheel is sticking? It all seems to roll, and turn ok.
Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. Oreck XL Ultra Bagged Upright Vacuum. After reading your question, there are only a few things that could be causing the problem. It is very possible that the brushroll could be dirty, or install wrong, on the ends of the brushroll the gray bearing holders will state NEW and OLD and both of the bearing holders needs to be identical – meaning the 2 should say NEW / NEW or OLD / OLD, not new / old of which could be causing the problem. The average belt change should be done every 4 to 6 months for the best cleaning, and the extra belts are stored in a Ziploc bag in the refrigerator. If the wheels are spinning properly then it is not the wheels unless they are dirty and the can be cleaned just by popping them out of the bottom plate holder with a screwdriver and then clean them under the sink. So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.
http://www.oreck.com/ Customer Service 1-800-989-3535
Monday thru Friday Hours are: 7:00 am to 7:00 pm CST
Saturday and Sunday Hours Are; 8:00 am to 4:30 pm CST
Thanks, Don the Vac Man
Go Ahead. Use Us.
SOURCE: magnavox 32mf23id/37 wont tun on
Had the same issue, I replaced two 1200uf caps on the power supply board and now it works fine again. Remember to replace the caps with caps rated for at least 35wvdc.
SOURCE: my model tv is Samsung model LNS4692DX/XAA
Hello: The problem is on the power supply, there are two capacitors on the power supply near the plug that goes to the mainboard, these caps will look swollen at the top on them compared to the other capacitors in the circuit, if you know how to unsolder and resolder parts then this is a simple fix. The value of the capacitors on the board are 1000uf rated at 10 Volts, replace them with 1000uf rated at 16 Volts instead so this will not happen again. You can find them at any local electronics parts store, (Radio Shack) for instance..There will be two of them that look puffy at the top,they should all be flat so spotting them should be very easy...
Thks: Have a Happy Holiday...
SOURCE: 50 " Phillips Plasma tv. Screen is black, blinking red light.
Sounds more like blown/exploding capacitors on the PSB-Power Supply board. No OSD-on screen display a blinking led or chatter/relay clikcing at startup is the tv going into fault protection and bypassing the startup pins. The YSUS-Main controls the pic which is attached to 2 buffer boards the YBU-upper YBL-Lower. They control the upper and lower portion of the OSD and the YSUS controls both of them. Since you're getting No OSD you need to check for blown caps on the PSB first. Unplugging the set resets the error again. So you start all over again.
Best Rgards and Semper Fi
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