Hi, the tv itself will turn on ans show an image on screen but turns itself off after around 1-2 seconds and the standby light starts to flash at around 1 to 1.5 second intervals.....any ideas?
Sharp Aquos LC42DH77E
Sharp Aquos LC42DH77E
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Re: Sharp Aquos Flashing Standby Light!
"Any ideas" were not physic, we need to get the basic's first when the tv shuts off shine a torch on to the screen and see if you can see any type of image to see if the back light is shutting down, we will need pictures off all of the boards, and most importantly do you have a multimeter ?Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/ -
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
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Re: Sharp Aquos Flashing Standby Light!
Thanks.... I have shone a torch at the screen and can't see any images displayed
Any particular areas of the boards you would like images of?
Yes I do have a meterComment
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Last edited by ReeceyBurger123; 10-15-2014, 11:31 AM.Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/Comment
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Re: Sharp Aquos Flashing Standby Light!
I have reset the TV using the P+ v- buttons on the tv and the green power light stays on but the picture goes off after a couple of seconds but I still have sound ?
I will upload pictures when i get back in
ThanksComment
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Re: Sharp Aquos Flashing Standby Light!
That indicates a backlight protection fault (equivalent to "2 seconds to black")
After 5 or 10 backlight failures (light up then go out due to fault) the TV will "lock out" until reset (using the appropriate keys.)Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Sharp Aquos Flashing Standby Light!
Change backlight tube before burn somethingComment
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Re: Sharp Aquos Flashing Standby Light!
Defective lamp socket, making lamp errors
Affected Serial Number Range 902011112 - 907xxxxxx
try to get into the adjustment mode and look at the lamp error
You could also look at the inverter board and the sockets
Often you could see that its slightly burnt
Often second or third from the topAttached FilesComment
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Re: Sharp Aquos Flashing Standby Light!
i've stripped off the inverter board and there are three points where it looks like its burnt on the sockets ( No. 2 , 3 , 7) can these be repaired?
ThanksLast edited by studfish; 10-20-2014, 05:24 AM.Comment
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Re: Sharp Aquos Flashing Standby Light!
No, two way to fix it.
Change 18 sockets or as I have seen in another forum
use a coppar wire wraped around the tube.
Sometimes the inverter is so badly burnt, so you even
had to change it, to make a good contact.
Dont forget to reset the lamp error in the service menu.Comment
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Re: Sharp Aquos Flashing Standby Light!
Any ideas where i can buy the sockets in the UK please?
And is it possible to test these by removing them and powering up to see how many are faulty?Last edited by studfish; 10-20-2014, 08:34 AM.Comment
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I have a Sharp Aquos LC-80LE757U that randomly made a loud popping noise when when watching TV one day. We found that the fuse blew and the thermistor. We ended up replacing the entire power supply board and have also replaced the TCON board. Now as soon as I plug the TV in it lights up and has the Sharp logo flashing on and off of the screen. If I unplug the ribbon cable from the TCON board to the main board I get the 2 long 5 short error code. Any ideas on where to go from here? We've tried resetting it but nothing has worked. If we plug it in and let it cycle through the flashing of the Sharp... -
The TV is a 2013 Samsung plasma, model # PN60F5300AFXZA.
Snagged it up in non-working condition a couple years ago. Previous owner said that sometimes he could get it to come on after repeated tries but other than that he couldn't get it to turn on.
Personally I haven't been able to get it to turn on at all. The standby light comes on solid when plugged in, but pressing the power button results in the standby light flashing once every 4 or so seconds. No "click" noises, no light from the panel at all. Just the flashing standby light.
No visible... -
Have a Samsung UE43KU6400U that will not turn on, just continuous flashing red standby light.
Power button does nothing
Have unplugged the mainboard, and backlights illuminate.
Have tried removing panel ribbon cables one at a time, and that makes no change.
With mainboard unplugged, all voltages from powerboard seem ok, but with mainboard connected, they never quite reach full voltage, and drop and raise in a constant loop (in time with click noise from mainboard.
Using backlight tester, I get 63.6v on both sides, so seems like no bulbs... -
This is a set I posted about a few years ago. Replaced LED strips and worked fine until now.
Plug the set in, and it will turn on and functions with no issues.
After a while, (sometimes hours, sometimes minutes, sometimes immediately) the tv shuts off. When I approach the TV I notice the standby light is flashing rapidly, but the pulse of each flash is not long enough to notice from afar.
Other than the standby light, the unit is completely unresponsive until the power is removed and reapplied, then the cycle starts over. It does appear that the time it takes... -
Hello everyone,
I got a Samsung The Frame 55 inch TV for free from uncle cause it is not turning on anymore. I am in the second year of training as an electrician so I have knowledge already but I am far away from to be a pro.
The TV has Standby but ist not turning on. A Friend of mine owns a 50 inch Frame TV so I checked the One Connect Box and the One Connect Cable there. Both are good and working normally. I have opened the TV case and measured some voltages on the Board.
What I already found is that the 12.8V are not an the connector to the main board connector to the power...
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