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Nathan
Nathan, Installer
Category: TV
Satisfied Customers: 20348
Experience:  Custom home theater installer, authorized dealer top brands.
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My tachi 50 inch flat screen TV, model number p50h401,won't

Customer Question

My hitachi 50 inch flat screen TV, model number p50h401,won't turn on and the blue power light blinks 4 times then stops and starts back blinking 4 times
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.

Expert:  Nathan replied 1 year ago.

Unfortunately, the issues you are experiencing are symptomatic of an internal hardware defect, meaning one of the sustain boards or power supply is bad, 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 2008 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), diagnostics with a digital multimeter to test voltages inside, changing out boards as needed, and possibly desoldering/removing and soldering/replacing capacitors (a common failure point).

If you’re considering repair at a local shop, you’ll find a typical repair to be around $300 for diagnostics, parts, and labor.

For a tv of this age/size though, replacement will often make more sense - you can get a brand new LED tv with a fresh warranty in the $500 range these days.

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

Expert:  Nathan replied 1 year ago.

I've replied to your initial question with the information above.

If you have further questions, please be sure to reply back to me here directly, on the original question only.

By opening new questions, you're charged more and it delays my ability to reply back to you.

Best regards,

Nathan