Question about Sony KP-51HW40 51" Rear Projection Television

1 Answer

Picture is blue for about 10 seconds then picture goes out completly. good sound. red standby light flashes in increments of 5.

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  • nrbeauchamp Feb 07, 2010

    if problem is blue tube why does picture go out complely

  • nrbeauchamp Feb 07, 2010

    is replacing the blue tube difficult and expensive. where can i find part number.

  • nrbeauchamp Feb 07, 2010

    yes symptom and model number are correct as above. s\n is 9051164 . manufactered june 02

  • nrbeauchamp Feb 07, 2010

    I assumed that this was the problem but I feel very confident now that an expert says the same thing. The information given was precise and in a timely manner. I am very happy i came here for my question.

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  • Master
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Hi,
If tv shows high bright blue picture with few thin retrace lines across the screen then it is problem of blue tube that is defective and will be replaced.
Let me know about symptoms are correct as mentioned above?
Thanks.

Posted on Feb 07, 2010

  • 1 more comment 
  • Shahid Electronics
    Shahid Electronics Feb 07, 2010

    if problem is blue tube why does picture go out complely
    ============================================================

    This tv has 3 tubes red-green-blue to make correct color picture and if tv gets white balance error due to failure/ problem with any tube, rest of two tubes will also be muted by system control as picture quality is being monitored by protection circuits that is why you see standby red light blinking 5 times.



  • Shahid Electronics
    Shahid Electronics Feb 07, 2010

    is replacing the blue tube difficult and expensive. where can i find part number.
    =============================================================

    Please confirm that symptoms are correct as said above?
    Blue Tube replacement is not difficult but after that convergence adjustment is difficult and tech can do it properly.
    To provide you blue tube part number info, I need exact model of your TV as question says it is Sony KP-51HW40
    If it is correct, please confirm. Part number is sensitive matter and related with product model number.





  • Shahid Electronics
    Shahid Electronics Feb 07, 2010

    yes symptom and model number are correct as above. s\n is 9051164 . manufactered june 02
    =====================================================================

    OK,
    Blue tube part number is appended below..

    873364905... CRT 07MVC31(B) - L (51HW40)

    Please search over internet to find out blue tube is available some where.
    Thanks.




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