Re: Haier Curved 4K 55ufc2500 No backlight
you were right.
I have 2 tv's, one with a broken screen but both with the same problem (backlight won't turn on).
I removed everything from the one with the broken screen, there's 10 lights strip with 5 led on each.
I tested each strip with a 12v powersupply (I know it's not enough to turn them at full brightness but enough to turn them at super low intensity).
on 10, one light strip didn't turned on (open)
Now, I need to disassemble the other TV without breaking anything...
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Re: Haier Curved 4K 55ufc2500 No backlight
Thanks, I can't find the panel number.
I checked again with the multimeter on the chassis and Led+
Turn tv on : 350V
After : 320V
I got 0V at the other led+ connector
I checked the voltage that goes to the main board on the powersupply and it's all good.
...
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Haier Curved 4K 55ufc2500 No backlight
I have 2 haier 55UFC2500.
Both will turn on without backlight.
I tested at the powersupply LED strip connector (There's 2 connector).
I get 240V at one connector and 0 at the other.
240V seems way too high ? I think there's a short on one side and the powersupply is pushing the whole 2 sides voltage on one sideā¦
If it the case, all the leds are burned now?
here's some pictures
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Re: LG 55LN5400 Jumping Picture
I just did a software update, no change.
Image still good after 45 minutes (you can still see some horizontale line everywhere but you really need to look)
Screen seems to keep ghost image, after the update, the '' UPDATE '' message stayed on the screen for several minutes (ghost image)
I think the panel is bad lol
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Re: LG 55LN5400 Jumping Picture
30 minutes TV is running and now the picture is almost perfect ??...
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Re: LG 55LN5400 Jumping Picture
Is it normal if I leave the tv working for a while, the image get better and better?
its not jumping anymore, but the image is still not good :p...Last edited by rikrikrik13; 02-06-2016, 04:42 PM.
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Re: Toshiba 50L1350UC No Backlight
I know this is a common issue, that's why I asked without pictures. All the voltage seems fine.
I saw somewhere a way to fix that if we bridge some terminal, but I can't remember
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Re: Toshiba 50L1350UC No Backlight
hi, I don't know what kind of picture you need. I can post a picture of the blank screen if you want :p
Just kidding, here's a picture of the power supply taken from the internet...
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Toshiba 50L1350UC No Backlight
Hi, I got this Toshiba TV without backlight.
Flashlight test : Yes I can see the image
Voltage test on L1+ : turn on tv, backlight flash for 1/2 second, voltage goes to 90v then 76v
Tried to disconnect PWN : No more backlight flash, voltage won't go higher then 76v on L1+
What you guys think? bad led or something else?Last edited by rikrikrik13; 02-06-2016, 02:51 PM.
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Re: LG 55LN5400 Jumping Picture
I also tried to disconnect one side of the t-con but It won't work (Should give half of the screen) at all (blank picture) if I disconnect any of the sides
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LG 55LN5400 Jumping Picture
I got this LG 55LN5400 with a jumping picture (See pictures)
I already replaced the t-con board with one on eBay with no success ...
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LG 55LM6700 Vertical Bars + Weird Colors
I got this LG 55lm6700 with flashing vertical bars and very weird colors on the whole screen.
There's no T-Con board, can it be the main board or panel?...
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Sony KDL-55EX620 Grey Band
Hi, I god a Sony KDL-55EX620 with a very light grey bar (See picture)
Can it be a bad t-con or bad panel?...
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Strange Lines Phillips 32'' 32pfl3506/f7
Someone gave me this tv for free. She said she received it by UPS and the tv worked for 1 week then start to show lines everywhere (unable tu see the picture, picture was only lines of different color, mostly white)
I opened up and the connector on the mainboard/t-con was not clipped.
Now the tv work but I still have some very lite lines on the right side of the screen.
Can someone help me?
Sorry for the pictures its very hard to see...
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Re: Sony 46'' LED TV 7 Blinks Codes
thank you, I ordered a bal board
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Re: Sony 46'' LED TV 7 Blinks Codes
ok so I opened the tv and then it was working fine.. for 3 days, then it shut off again with the same error (7 blinks, temperature error)
crazy thing lol
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Re: Sony 46'' LED TV 7 Blinks Codes
UPDATE:
I found the service manual for my TV, 7 blinks code doesnt mean High voltage error (this was on old tvs) but temperature error :
BAL Board
HLR Board
What doesnt it mean? something overheat really fast?
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Re: Sony 46'' LED TV 7 Blinks Codes
BTW. is it normal that the BIG Cap won't discharge when I put a screwdriver on it? It seems that it loosing all it power right away after the tv as been unplugged
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Re: Sony 46'' LED TV 7 Blinks Codes
Thank you.
As soon as the tv heats up for 2-3 minutes it turns off and wont turns on again until it becomes very cool.
When I bought it from my friend, the tv was really cold (Sitting in a garage). When I bring it back home it worked for 15 minutes :p
I did the testing tonight near my fireplace and now it won't turn on at all anymore (Only clicking)
Its gonna be pretty hard to locate the faulty part because Ill have to cool down the board in a freezer then heat it lol
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