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Panasonic TV with horizontal black lines. No actual Picture.

Customer Question
Panasonic TV with horizontal...

Panasonic TV with horizontal white black lines. No actual Picture

Technician's Assistant: Are there any HDMI cables or A/V jacks (red, yellow, and white cables) plugged into your Panasonic TV?

I have them disconnected

Technician's Assistant: Was there a power outage recently?

Yes

Technician's Assistant: Anything else you want the TV Expert to know before I connect you?

TH-50PX75U Model

Submitted: 22 days ago.Category: TV
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Answered in 1 minute by:
3/31/2018
TV Technician: Anthony_Infotech, Technician replied 22 days ago
Anthony_Infotech
Anthony_Infotech, Technician
Category: TV
Satisfied Customers: 15,795
Experience: 20+ years experience TV expert (field and bench) 9 approved qualifications in TV-ELECTRONICS
Verified

Hello
Welcome
I am sorry you are having trouble here,I am presently reviewing your question be with you very soon.

Anthony

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TV Technician: Anthony_Infotech, Technician replied 22 days ago

If you press the menu button of the sets own remote control does the menu come up please?

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Customer reply replied 22 days ago
One sec
Customer reply replied 22 days ago
No Menu
TV Technician: Anthony_Infotech, Technician replied 22 days ago

Sorry I will open this up

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TV Technician: Nathan, Installer replied 21 days ago
Nathan
Nathan, Installer
Category: TV
Satisfied Customers: 28,971
Experience: Custom home theater installer, authorized dealer top brands.
Verified

Hello and sorry to hear you're having trouble with the tv,

Unfortunately, the issues you are experiencing are symptomatic of an internal hardware defect, meaning a faulty sustain or main/control 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 2007 model tv, that type of failure wouldn’t be surprising. This set is well over double its service life at this point, and plasma technology is long obsolete.

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 $400 for diagnostics, parts, and labor.

For a tv of this size/age however, replacement will make more sense. You can get a brand new 4k LED tv with a fresh warranty in the $400 range.

I can help you with finding parts, finding a repair shop, or recommending replacement options, if desired.

My apologies for the news,

Nathan

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TV Technician: Nathan, Installer replied 16 days ago

Hello, it appears your question is still open.

Do you need more help with this?

Please note: You have already paid your fees to the site; I'd like to help you and provide value for that fee, but I do need to communicate with you here to do so, if more help is needed.

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Nathan
Nathan
Nathan, Installer
Category: TV
Satisfied Customers: 28,971
28,971 Satisfied Customers
Experience: Custom home theater installer, authorized dealer top brands.

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