Samsung UE40D5520 it gets to the Samsung Logo and reboots, does this non stop, Voltages are fine, I am after a main board for it but can't find the right one anywhere ??? can you help please fallow Techs, photos below
-
-
Re: Samsung UE40D5520 Boot loop
Have you inspected the black wire connectors(looking for discoloration) from psu to main brd? I've read that these are fairly common. -
Re: Samsung UE40D5520 Boot loop
Yes all wires look good, its not a terribly old setComment
-
Re: Samsung UE40D5520 Boot loop
I would say upgrade the firmware or do a factory reset.
http://www.samsung.com/uk/support/model/UE40D5520RKXXU
This might work for factory reset.
Turn the power off. On the remote, press Mute followed by 1, 8, 2, Power in sequence.Comment
-
Re: Samsung UE40D5520 Boot loop
I had a Samsung un40d6400 that was doing the same thing. With help from the forum it was determined to be shorted led strip.
They were edge strips.Comment
-
Re: Samsung UE40D5520 Boot loop
If I unplug the main board the LEDs come on so I doubt it's a backlights issue. Maybe firmware or main board. Will try the above and try and boot up in service menu modeComment
-
Re: Samsung UE40D5520 Boot loop
Does anyone know of where I can obtain a main board for this please. Pics aboveComment
-
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=24809Comment
-
Re: Samsung UE40D5520 Boot loop
Hi Fleckers TV
Did you manage to resolve your issue; I think I may have the same problem. Thanks.Comment
-
Samsung QLED QN50Q — purchased 2022 started experiencing a delay in the picture coming on in the morning less than 2 years later. Did not know the term boot loop at that time. As the loop delay ran into a few minutes did all the recommended troubleshooting, soft and hard reset, changing cables and outlet locations, no help. As the delay increased contacted Samsung tech group and allow them remote access the tv. Tech was moving too fast to see exactly what he was doing but this ultimately it was also no help. Lived with the delay until it stretched out over 6 hours. Pulled of off the back cover... -
Hi Team - just joined to see if anyone can offer some expertise in diagnosing an issue with a TV.
I've done a few hours googling and youtubing but just seeing if anyone has any insight here. I got a 55" Samsung UE55MU6470U which seems to boot loop and then after 10 mins will boot, work for a few minutes, then turn off and repeat.
Whilst it's on into the normal Samsung menu/boot screen it looks perfect - so I can't see there being any screen issues. I've seen lots of videos with taping across clock lines to diagnose which particular one may be an issue but i don't... -
Hello all... TV started boot looping. Opened the back panel and tried to isolate the problem. Just PSB no boot loop. PSB and MB no boot loop. Plug in the LVDS from panel to MB and boot looping starts up. It doesnt matter of order that I plug the LVDS ribbons back in, only 1 and no boot loop but as soon as 2nd one plugs in boot looping. I then noticed a flicker on the screen when I was closing the clip on the harness to the LVDS. Shut the lights off so I can see better, and I noticed as i slowly close it, I will get a picture, but as soon as it clips in, I lose picture and booting happens. So I... -
Hi, I rescued a Samsung UN40H5003AF (H = 2014 FHD) from the curb. Symptoms are: standby (red) light comes on, stays on for 8 seconds, flickers off, then comes back on, and the cycle continues.
Service manual: https://www.electronica-pt.com/esque...is-u8la-71272/
SMPS board: checked voltages, all seem normal (A13V = 12.8V, UD = 3.3V, PWM_BLU = 0.77V, PS_OnOff = 5.5V). Remove 10p cable to main board -> backlight comes on. I think this means SMPS board and backlight are good.
Main board: BN94-07592P / BN97-08922R... -
Less than a year out of warranty, samsung UE49MU6105K craps out, they've got this designed obsolescence down to an exact science of self destruct when out of warranty...
Screen started to show horizontal lines and ghosted image at the bottom, then turned off by itself. Did software update, to no avail of the line problem, and got a boot loop after some minutes of watching TV. This boot loop will turn on the backlights for some seconds the sound comes on, the image will turn dark very fast and then it reboots again. Pressing power button will not put it on standby. Disconnecting...
Comment