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GARY1974 Guest
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Posted: Fri Oct 28, 2005 8:48 pm Post subject: ZENITH MODEL PVR5263MK |
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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 Guest
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Posted: Sun Oct 30, 2005 5:31 pm Post subject: Re: ZENITH MODEL PVR5263MK |
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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 Guest
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Posted: Mon Oct 31, 2005 12:06 am Post subject: |
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Hi,
U sure its the SMPS module faulty? There's power to the audio section of the board... Although not impossible, it seldom happens that ONLY a certain section in the power unit blew out... I stand corrected.
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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