Question about Sony Grand WEGA KDF-60WF655 60" Rear Projection HDTV

1 Answer

Power/standby light flashes 7 times and the tv doesn't turn on

Hello! We bought a Sony KDF-60WF655 about 3 years ago and it was new in the box (never used because we were waiting to finish building our home to get married ), and last night we open the box and finally enjoy watching our tv. Then we turn it off and went to sleep. This morning the power/standby light flashes 7 times and the tv doesn't turn on. When we try to turn it on it makes the sound like it will turn on and the screen stays black and then the tv turns off by itself. While we were sleeping there was a power voltage problem and we didn't have the power suppresor installed yet since we were testing the tv. Thanks for your assistance, Wilfredo & Joann

Posted by on

  • JOANN HERRANS Jun 14, 2008

    Is there any way I can fix this by myself of do I need to contact a technician? Thanks, Joann

  • JOANN HERRANS Jun 14, 2008

    Hello again,

    My brother-in-law is an experienced computer/electronic engineer, so I think he can do the job with some advice you can give me.

    Thanks in advance, Joann & Wilfredo

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  • Sony Master
  • 8,617 Answers

Audio Protect (7 Flash): When DC voltage is detected at the speaker or
woofer outputs, IC3604/pin128 (TV-micro) goes low and IC3604 turns off
the main power (AC relay turns OFF).
Troubleshooting Tips:
1) Main cause of defective will be located on the KD-board
2) Confi rm KD-board is securely seated on the G2-board
3) Replace KD-board

Posted on Jun 13, 2008

  • Sonny Berry
    Sonny Berry Jun 14, 2008

    Thats a fairly complex Chassis. Unless youre really good at dissassemble and reassembly of small components, I would suggest a Sony authorized reapir tech do the repair.

  • Sonny Berry
    Sonny Berry Jun 14, 2008

    Certainly, I can help you. I would recommend going to the following link and getting the service manual so he can see first hand disassembly instructions and testing proceedures. Its only 10.99 and they email it to you shortly after purchase. The manual is a valuable resource as it will have part numbers in case you do need a new KD board. heres the link.

    http://servicemanuals.vstore.ca/

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