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Nathan
Nathan, Installer
Category: TV
Satisfied Customers: 24479
Experience:  Custom home theater installer, authorized dealer top brands.
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I have a odd-55a20 Sony projection tv and the light blinks

Customer Question

I have a odd-55a20 Sony projection tv and the green light blinks 5times then the red blinks 6 times can you help me
JA: Just to clarify, what's the exact model of your Sony? And can you guesstimate how old it is?
Customer: Kdf-55a20
JA: Does the TV menu work? Do you have the same problem on all sources/inputs?
Customer: Yes
JA: How long has this been an issue? What happened right before this popped up?
Customer: A few weeks
JA: Anything else you want the tv expert to know before I connect you?
Customer: No picture no sound
Submitted: 8 months ago.
Category: TV
Expert:  Nathan replied 8 months ago.

Hi, I'm Nathan.
Sorry to hear that you're having trouble, but I'll do my best to help you. Please give me a few moments to review your details here.

Expert:  Nathan replied 8 months ago.

Unfortunately, the issues you are experiencing are symptomatic of an internal hardware defect, meaning a lamp driver or gm board, though there are many possible failure points. 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 2005 model tv, that type of failure wouldn’t be surprising; this tv is significantly past its service life at this point.

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 outlet
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 could include dismantling the set (removing the back panel of the tv), diagnostics testing with a multimeter, changing out boards as needed, and possibly desoldering/removing and soldering/replacing individual components.
If you’re considering repair at a local shop, you’ll find a typical repair to be around $300 for diagnostics, parts, and labor; assuming parts can even be found.

For a tv of this type/age however, replacement will make more sense. You can get a brand new LED tv with a fresh warranty in the $500 range.

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, ***** ***** for the news,
Nathan

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