I have a chance to buy 2 of these tvs with bad backlights, however I cannot find any information on the parts. Thought I looked everywhere. Its a commercial grade 4K tv. Really would like to fix these. Anyone know what lights go in this tv?
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NEC 507Q backlights
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Re: NEC 507Q backlights
Are you sure that the LED backlights are bad? Did you do any Voltage measurement?
What is the LCD panel model number?Last edited by budm; 03-28-2020, 04:49 PM.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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Re: NEC 507Q backlights
Sorry Budm, I dont have any of that info. I can get both for $25 ea and will take that chance. Seller says both flicker, so I'll take his word. They are built on the Vizio framework such as E50-C1. Those boards look very similar, but a close up is not available to me.
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Re: NEC 507Q backlights
The LCD panel is made by other OEM not by VIZIO, they may even use different panel for the same modelNever 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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