wont turn on no backlight theres a power on touch screen sensor on the front can get that to work but thats about it
thanks
thanks
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Last edited by sordids999; 11-26-2013, 07:54 AM. -
Re: 47le5300
Start by checking BL ON/OFF from main board.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. -
Re: 47le5300
sorry tom which one is the BL ON/OFF ive attached some pictures
also tom if i press the button in the picture the backlight comes onAttached FilesComment
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Re: 47le5300
Try this, Make sure there is an input in the TV... bet you the backlights do not turn off.
If you have nothing plugged in the set will turn the backlights off after a few secondsComment
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Re: 47le5300
Had same issues, if you shine a light into the screen once you turn it on and the backlights go off you should be able to see the no input signal icon... press menu on remote.. goto settings and factory reset. i have a feeling it will not turn the backlights off then either.Comment
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Re: 47le5300
no just tried this connected avi lead into main board nothing so pressed the button on main board the backlight lit up but went straight off
could not see no input signal icon on the screen
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Re: 47le5300
So just to confirm you cannot see any image at all with a flashlight?Comment
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Re: 47le5300
no m8Comment
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Re: 47le5300
So no back lights and no image.
The LED driver board is built into the PSU on these models.
Which button have you pressed in post #3?
@ Tom, There are no references on the boards to indicate what pin is for what... This board is slightly different to the one I was working on the other day but same will apply.Last edited by newtothis; 11-26-2013, 08:51 PM.Comment
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Re: 47le5300
heres the picture m8
SW1001 is the button i press to light the backlight up it only stays on for as long as you hold the button in
tried last night with light shining on screen no image showing
thanksAttached FilesComment
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Re: 47le5300
just want to bump this up decided to get back to this tv after so long but basically suspect main board failure tv totally dead so does anyone have a idea how i can jump the power supply to see if its the main board,looked in a service manual but not much info
thanksComment
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Re: 47le5300
on the legend on the PSU i have
20V POWER ON
20V 20V
GND GND
GND GND
3.5V 3.5V
3.5V 3.5V
GND GND
V-SYNC GND
DRV ON 12 V
SCLK 12V
PWM DIM 12 V
ERROR OUT SINComment
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