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Philips 32PW633 (MD1.2E chassis)

 
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astro



Joined: 20 Jul 2005
Posts: 3

PostPosted: Thu Jul 21, 2005 10:58 am    Post subject: Philips 32PW633 (MD1.2E chassis) Reply with quote

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

PostPosted: Thu Jul 21, 2005 12:06 pm    Post subject: Reply with quote

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

PostPosted: Thu Jul 21, 2005 8:56 pm    Post subject: Reply with quote

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

PostPosted: Fri Jul 22, 2005 4:34 am    Post subject: Reply with quote

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

PostPosted: Fri Jul 22, 2005 6:49 am    Post subject: Reply with quote

Cheers m8

I will give it a go

regards

astro
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