How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Nathan Your Own Question
Nathan
Nathan, Installer
Category: TV
Satisfied Customers: 23577
Experience:  Custom home theater installer, authorized dealer top brands.
59725966
Type Your TV Question Here...
Nathan is online now
A new question is answered every 9 seconds

My Sony Wega was working fine then lost signal and when I

Customer Question

my Sony Wega was working fine then lost signal and when I try to run auto program it starts to run and then shuts off after a couple seconds. No blinking light codes
Submitted: 1 year ago.
Category: TV
Expert:  Nathan replied 1 year ago.

Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.

Sorry to hear you’re having trouble.

What is the full model number of the tv?

Customer: replied 1 year ago.
kdf-42we655
Expert:  Nathan replied 1 year ago.

Thanks for the info.

If you turn the tv on now, without going into the menu or setup, will it stay on?
Will it function with any other input (dvd, etc)?

Customer: replied 1 year ago.
it works fine with other inputs just wont program chanels
Expert:  Nathan replied 1 year ago.

Okay can you please clarify - when you said it shuts off, do you mean the tv physically powers down after you initiate the channel scan? Or the scan just freezes up or stops running, but the tv stays on?

Customer: replied 1 year ago.
the tv stays on the auto program just shuts off
Expert:  Nathan replied 1 year ago.

Thank you for confirming.

Since the issue came up suddenly (losing signal) and won't complete the scan process now, that would indicate that the internal tuner card has failed.

This issue could be a manufacturing defect, but is also often caused by a power event (shock/surge, prolonged over/under voltage condition, etc).

This could also be the result of age related wear and tear, as a 2004 model tv, that type of failure wouldn’t be surprising.

There is one step you can take here, both as a possible fix, as well as a diagnostic evaluation
1) Unplug the power cord from the tv

2) Wait at least 1 hour (60+ Minutes)

3) Press and hold the power button (on the set, not the remote) for 60 seconds
4) Keep holding power button while plugging back in, and for another 60 seconds after. When plugging back in, go directly to the wall outlet, bypassing any power strips or surge protectors.

If this reset process does not work, it would unfortunately confirm an internal hardware failure.

This is something that would require repairs to correct; if you're thinking about a do it yourself repair, you'll need to be comfortable and skilled with electronics repairs, which would require dismantling the set (removing the back panel of the tv), changing out boards, etc, though at this point parts are nearly impossible to find for this 11 year old set. Typically the tuner component will be around a $50 part, when they can be found (used).

If you’re considering repair at a local shop, you’ll find a typical repair to be around $200 for diagnostics, parts, and labor.

For a tv of this size/age, replacement would make more sense. That could mean buying a new tv - you can get a brand new LED tv with a fresh warranty of this size in the $300 range, or you could just bypass the internal tuner and hook up an external tuner box instead, for about $35: http://amzn.to/1SJOUgz

Depending how you’d like to proceed here, I can help with finding parts, finding a repair shop, or recommending replacement options. Just let me know.

Best regards, and apologies for the news,

Nathan