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ZENITH MODEL PVR5263MK

 
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GARY1974
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PostPosted: Fri Oct 28, 2005 8:48 pm    Post subject: ZENITH MODEL PVR5263MK Reply with quote

I HAVE A ZENITH MODEL PVR5263MK AND I AM TRYING TO FIX A NO PICTURE PROBLE. IT WILL POWER ON AND I GET SOUND THROUGH THE SPEAKERS. BUT I GET NO PICTURE OR EVEN A FLASH THAT INDICATES I TURNED THE TV ON. I AM STUMPPED CAN SOMEONE HELP?
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dan
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PostPosted: Sun Oct 30, 2005 5:31 pm    Post subject: Re: ZENITH MODEL PVR5263MK Reply with quote

GARY1974 wrote:
I HAVE A ZENITH MODEL PVR5263MK AND I AM TRYING TO FIX A NO PICTURE PROBLE. IT WILL POWER ON AND I GET SOUND THROUGH THE SPEAKERS. BUT I GET NO PICTURE OR EVEN A FLASH THAT INDICATES I TURNED THE TV ON. I AM STUMPPED CAN S OMEONE HELP?
you have a bad switch mode power supply module
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fongs
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PostPosted: Mon Oct 31, 2005 12:06 am    Post subject: Reply with quote

Hi,

U sure its the SMPS module faulty? There's power to the audio section of the board... Confused Although not impossible, it seldom happens that ONLY a certain section in the power unit blew out... I stand corrected. Smile

A few tinkers...

1. Service switch?
Is the service switch dirty? Sometimes this can get in the way. Spray with contact spray.

2. FBT dry joints?
I would suggest to resolder all joints at FBT section.

3. Is there a glow at the neck of CRT?
No glow = no power to color gun(s)... could be transistor bad or
bad CRT (hopefully not!)
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