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astro
Joined: 20 Jul 2005
Posts: 3
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 Posted: Thu Jul 21, 2005 10:58 am Post subject: Philips 32PW633 (MD1.2E chassis) |
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Hi guyz
I have the above TV that is dead apart from a continuous squeak. I have replaced the power supply kit but it has changed nothing. Is there someone who can point me in the right direction.
Kindest regards
astro |
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Al_Dodge_Bundy
Joined: 05 Apr 2005
Posts: 93
Location: Netherlands
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| Posted: Thu Jul 21, 2005 12:06 pm Post subject: |
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Could you check if the PSU is squeeking, due to a short in the primairy side of the mainboard?
Often a short in the secondairy "side" makes the PSU go into a repeating shutdown/start-up sequence, and this generates a squeeking/high pitching sound!
Grtz Mark |
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astro
Joined: 20 Jul 2005
Posts: 3
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| Posted: Thu Jul 21, 2005 8:56 pm Post subject: |
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Hi m8 thanks for your time
I'm not sure I understand what you mean, if you could be a little more specific it will be very much appreciated.
As metioned in my original post I have replaced the various components that comes with the psu mod kit.
regards
astro
(BTW like the name, love the program. Watching the repeats religiously at the moment) |
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Al_Dodge_Bundy
Joined: 05 Apr 2005
Posts: 93
Location: Netherlands
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| Posted: Fri Jul 22, 2005 4:34 am Post subject: |
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Start by checking the largest transitors near the flyback trafo (called HOT, used for H-deflection and/or highvoltage), for any short.
If there is a short there (secondary to the PSU), the powersupply will go into a shutdown/startup sequence!
Grtz Mark |
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astro
Joined: 20 Jul 2005
Posts: 3
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| Posted: Fri Jul 22, 2005 6:49 am Post subject: |
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Cheers m8
I will give it a go
regards
astro |
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