Question about Sony Grand WEGA KDF-55WF655 36" Rear Projection HDTV

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KF-50WE620 4 FLASHES

Hi,
My Sony will not power up; it flashes 4 times which seems to point to the fans. The service manual shows 3 fans I could only locate 2.
I tested both fans and they do work. Where is this third fan (if my set actually has one)? Any ideas on what would cause this problem?
Would a bad lamp, bad lamp driver or circuit cause the problem?
Thanks for any assistance.

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  • FerGarza Mar 31, 2009

    The same problem 4 flashes

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  • 184 Answers

There's a fan in the optical block (light engine) You may also have either an intermittent fan or a bad connection from the fan(s)

michtech

Posted on Feb 20, 2009

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6ya6ya
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Posted on Jan 02, 2017

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