Question about Projection Televisions

4 Answers

37PF9731D/10 Philips TV. On / off button seems to be moving "in" to the TV, making it difficult to switch on / off. I don't want to send it back to the manuf. as it will be gone for 15 days - is there something I can do to fix this myself (internal screws etc.?)

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  • andypender Sep 01, 2008

    It only has a couple of months warranty left on it, hence the reason I was asking about effectively a home repair ............. 15 working days is a long time without a TV for something I can potentially repair myself.

  • andypender Sep 01, 2008

    Do you know what type of fixing arrangement this type of TV / power switch has ........ the switch effectively seems to be physically moving in to the TV - still working OK just now, but if it moves much further, I won't be able to switch it on / off.

  • andypender Sep 01, 2008

    Many thanks. Much appreciated. I thought it would be a shop fix, but worth a try anyway .....
    Andy

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The switch button is already loose contact or crack solder joint,thats why its hard to turn on / off .Its needs to reworks the solder joint or resolder it, so it will works normally or replace the switch with a new one.Find a TV repairman to do the works or bring it to a shop,find a good one ,its cost you maybe $50 to $75..

Hope his may help;

Regards,
VOTIT

Posted on Sep 01, 2008

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It may fatal for you and for your tv by doing all by your self. it will take much more problem if you handle this one. so i suggest that you should send it for a service or repair with a technician.
if you still insist of repairing it by yourself then try this one.

  • Consult your TV’s troubleshooting guide. Follow its recommended steps. Most problems can be fixed by troubleshooting.
  • Diagnose what's wrong with your TV. There are many TV repair tip websites on the Internet you can consult, like the "Notes on the Troubleshooting and Repair of Television Sets" website (see Resources below). Or, try asking a TV repair question on an online message board like AllExperts.com (see Resources below). You can also find books on troubleshooting projection TV's. Check your local library or bookstore for a book like “Complete Projection TV Troubleshooting and Repair."
  • Get your TV’s service manual to find a diagram of your TV’s circuits. You can get a service manual through a retailer that sells your TV brand or through an online store like tvdiagrams.com
  • Gather the necessary tools. For most projections TVs you'll need a Phillips head and a flathead screwdriver to remove the back shell. You may also need a digital multimeter to test the circuits
  • Know the common problems and fixes for a projection TV. Below are a few common problems that people come across when a projection TV goes on the fritz.
    • Blurred, snowy picture: Turn on your projection TV and wiggle the coax cable from your cable box or antenna where it connects to the TV. If the picture fluctuates, you know that you have a loose connection, or that the coax cable is bad.
    • Blotches of color on the screen: Caused when your projection TV becomes magnetized. Use a strong magnetic coil and make circular motions around your projection TV screen starting on the upper left corner. Increase the size of the circles you're making until you've covered the entire screen. Slowly move away from the screen; continuing to make circular motions with the magnet. When the magnet loses contact, the color blotches should be gone.
    • TV shuts off randomly: It's usually caused by overheating. Remove any heat-emitting objects or anything that may be insulating the TV and causing it to overheat.
    • Speaker emits static: Follow the remaining steps to replace a speaker
  • Unplug your TV’s power cord from the electrical outlet and disconnect any peripheral devices like a DVD player or cable box. Place your television screen-down on a soft surface.
  • Remove the screws that connect the back shell to the rest of the TV. Then pull the shell up and off the TV carefully. Set it aside.
  • Consult your TV’s service manual to find the part that you need to replace or repair.
  • Place the shell back on the TV once your repairs are finished. Replace each screw to secure the shell to the TV
  • Plug your power cord back into the electrical outlet and test your TV. If your repairs weren't successful, it may be time to consult a professional
Ive got this info. from a site that would help you fix your tv. i hope that this steps would help you

cheers
CHARCOIS

Posted on Sep 01, 2008

  • Charris Suaybaguio
    Charris Suaybaguio Sep 01, 2008




    Things you’ll need from above steps


    • Owner's manual
    • Tools

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You would need to send it in for repairs as it is if you do anything to the tv it will void out any warranty you may have on the set.

Posted on Sep 01, 2008

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  • Projection T... Master
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Check first the power cable.
Check the power button internally is working.
internally there is a fuse or circuit breaker, on the poower supply board near to where power cable hook up, check it out.
Tryu a different socket.

Posted on Sep 01, 2008

  • Ginko
    Ginko Sep 01, 2008

    If you want to do it yourself, disconnect the TV power cord one hour before taking TV apart, this eliminate the risk for heavy electrostatic discharges.
    Iside TV try not to touch circuits and components contacts with your bare fingers, some IC is very sensitive and can blow.
    And, as usual...DIY at your risk.


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