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Old 11-22-2019, 01:41 PM   #1
tvdad
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Smile Panasonic (TC-50LE64) LCD tv turn on bright then dims

Hello all badcaps!

New member here, thank you all for allowing me join this forum.

I have a pickle with my tv

The whole screen turns on with a bright blue background, then after around 10 secs or so, it dims to a dark/faint dark blue.

No logo/words on screen.

Any ideas as to what's causing this?

It's a Panasonic LCD tv, model number: TC-50LE64

Thanks!
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Old 11-22-2019, 04:35 PM   #2
tvdad
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Default Re: Panasonic (TC-50LE64) LCD tv turn on bright then dims

I don't see an option to edit my post, so I'mma just reply here.

I've went ahead and attached the picture of what the boards look like in case anyone needed/wanted it.

TXN-A1VJUUS - A-board/main board

TNPA5807 - Power board

C500E06E02A - LED DRIVER

V420HK1-CS5 - T-con
Attached Images
File Type: jpg C500E06E02A LED DRIVER.jpg (417.8 KB, 3 views)
File Type: jpg pw TNPA5807.jpg (237.2 KB, 3 views)
File Type: jpg TXN-fslash-A1VJUUS-2.jpg (939.0 KB, 4 views)
File Type: jpg V420HK1-CS5.jpg (237.3 KB, 4 views)
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Old 11-22-2019, 05:15 PM   #3
nomoresonys
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Default Re: Panasonic (TC-50LE64) LCD tv turn on bright then dims

Your zip code means you don't have to mess around with it, it's not worth possibly getting shocked, there are lethal voltages on the powerboards HOT side.

Last edited by nomoresonys; 11-22-2019 at 05:16 PM..
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Old 11-22-2019, 05:17 PM   #4
tvdad
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Default Re: Panasonic (TC-50LE64) LCD tv turn on bright then dims

Quote:
Originally Posted by nomoresonys View Post
Your zip code means you don't have to mess around with it, it's not worth possibly getting shocked, there are lethal voltages on the powerboard.
My zip code means I like to do/fix things myself. Sometimes with help of course (like you guys

Any ideas as to what's causing this? I'd just buy the replacement part(s), if possible, and install it.

Thanks.

Last edited by tvdad; 11-22-2019 at 05:34 PM..
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Old 11-23-2019, 02:16 PM   #5
CapLeaker
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Default Re: Panasonic (TC-50LE64) LCD tv turn on bright then dims

These Panasonics have a self test option in the menu. Run it. Check that the latest firmware is on it. Do a factory reset and see if that helps.
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Old 11-23-2019, 02:58 PM   #6
budm
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Default Re: Panasonic (TC-50LE64) LCD tv turn on bright then dims

Can we see the pictures of the whole backside of the TV showing all the boards and how they are connected to each other?
__________________
Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956

Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999

Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl

Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/

TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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