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Computer works great now TV is goin out

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Mouse Cooler Master MM710 53G
Keyboard Logitech 920-009300 G512 SE
Software Windows 10 Pro // Windows 10 Pro
Toshiba 40" 40G300u1

First the picture starts flickering. So I do a firmware update. Now it work but go black every so often. So after googling and youtube I realize it still has a picture but very faint. Turn it off and back on. It works for 20 min or so then black again.

Took the back off and took out the inverter, put it back now it seams to work, for now. I think the inverter is goin out or the back light. Any ideas?
 
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I bet it's the inverter. If the lamp went out, it would probably not work anymore. I would probably make sure there aren't any problematic looking areas like bad capacitors, loose cables or burn spots on other boards before replacing the CCFL inverter.
 
Joined
Jan 17, 2010
Messages
12,280 (2.36/day)
Location
Oregon
System Name Juliette // HTPC
Processor Intel i7 9700K // AMD Ryzen 5 5600G
Motherboard ASUS Prime Z390X-A // ASRock B550 ITX-AC
Cooling Noctua NH-U12 Black // Stock
Memory Corsair DDR4 3600 32gb //G.SKILL Trident Z Royal Series 16GB (2 x 8GB) 3600
Video Card(s) ASUS RTX4070 OC// GTX 1650
Storage Samsung 970 EVO NVMe 1Tb, Intel 665p Series M.2 2280 1TB // Samsung 1Tb SSD
Display(s) ASUS VP348QGL 34" Quad HD 3440 x 1440 // 55" LG 4K SK8000 Series
Case Seasonic SYNCRO Q7// Silverstone Granada GD05
Audio Device(s) Focusrite Scarlett 4i4 // HDMI to Samsung HW-R650 sound bar
Power Supply Seasonic SYNCRO 750 W // CORSAIR Vengeance 650M
Mouse Cooler Master MM710 53G
Keyboard Logitech 920-009300 G512 SE
Software Windows 10 Pro // Windows 10 Pro
Ya, I did that, everything looks good. Im hoping it was a loose connection.
 

zootac

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Joined
Mar 19, 2012
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england
Toshiba 40" 40G300u1

First the picture starts flickering. So I do a firmware update. Now it work but go black every so often. So after googling and youtube I realize it still has a picture but very faint. Turn it off and back on. It works for 20 min or so then black again.

Took the back off and took out the inverter, put it back now it seams to work, for now. I think the inverter is goin out or the back light. Any ideas?

I used mess about with flat screen t.v. and monitors years back
Just a thought whats the caps look like on the power unit ?
mite be craping out with heat.
 
Joined
Jan 17, 2010
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12,280 (2.36/day)
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Oregon
System Name Juliette // HTPC
Processor Intel i7 9700K // AMD Ryzen 5 5600G
Motherboard ASUS Prime Z390X-A // ASRock B550 ITX-AC
Cooling Noctua NH-U12 Black // Stock
Memory Corsair DDR4 3600 32gb //G.SKILL Trident Z Royal Series 16GB (2 x 8GB) 3600
Video Card(s) ASUS RTX4070 OC// GTX 1650
Storage Samsung 970 EVO NVMe 1Tb, Intel 665p Series M.2 2280 1TB // Samsung 1Tb SSD
Display(s) ASUS VP348QGL 34" Quad HD 3440 x 1440 // 55" LG 4K SK8000 Series
Case Seasonic SYNCRO Q7// Silverstone Granada GD05
Audio Device(s) Focusrite Scarlett 4i4 // HDMI to Samsung HW-R650 sound bar
Power Supply Seasonic SYNCRO 750 W // CORSAIR Vengeance 650M
Mouse Cooler Master MM710 53G
Keyboard Logitech 920-009300 G512 SE
Software Windows 10 Pro // Windows 10 Pro
Caps look ok. I left the back off to help it cool but it still does it. Ordering a used inverter off e bay
 
Joined
Jan 17, 2010
Messages
12,280 (2.36/day)
Location
Oregon
System Name Juliette // HTPC
Processor Intel i7 9700K // AMD Ryzen 5 5600G
Motherboard ASUS Prime Z390X-A // ASRock B550 ITX-AC
Cooling Noctua NH-U12 Black // Stock
Memory Corsair DDR4 3600 32gb //G.SKILL Trident Z Royal Series 16GB (2 x 8GB) 3600
Video Card(s) ASUS RTX4070 OC// GTX 1650
Storage Samsung 970 EVO NVMe 1Tb, Intel 665p Series M.2 2280 1TB // Samsung 1Tb SSD
Display(s) ASUS VP348QGL 34" Quad HD 3440 x 1440 // 55" LG 4K SK8000 Series
Case Seasonic SYNCRO Q7// Silverstone Granada GD05
Audio Device(s) Focusrite Scarlett 4i4 // HDMI to Samsung HW-R650 sound bar
Power Supply Seasonic SYNCRO 750 W // CORSAIR Vengeance 650M
Mouse Cooler Master MM710 53G
Keyboard Logitech 920-009300 G512 SE
Software Windows 10 Pro // Windows 10 Pro
Well the inverter didn't fix it. So Im still working on getting it fixed but in the mean time I bought a new Samsung Plasma Model 450 51" 720p Got a good deal $500
 
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51" 720p? Naaaaaaaaasty...
 
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