TV Sharp AQUOS LC-60LE635E TV not power ON

[markolino]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

aaaaaa okk.

I understood now.
Here are the measurement tasks.

This is result.

Pin1 LED1 + =89V
----------------------
Pin2 LED1 - =175V
------------------------
Pin3 LED2 + =89V
-----------------------
Pin4 LED2 - =176V
-----------------------
Pin5 LED3 + =96V
----------------------
Pin6 LED3 - =176V
---------------------
Pin7 LED4 + =96V
----------------------
Pin8 LED4 - =176V

[pier12]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

Look connector named L1

[pier12]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

In your case between pins1 and 2, 3-4, 5-6, 7-8 you must have U=80-90V....

[markolino]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

In your case between pins1 and 2, 3-4, 5-6, 7-8 you must have U=80-90V....

What half do I have good power or don't I have?

[R_J]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

In post# 52 you had this:
Pin1 LED1+ =180V
Pin2 LED1-
Pin3 LED2+ =180V
Pin4 LED3-
Pin5 LED4+ =180V
Pin6 LED2-
Pin7 LED3+ =180V
Pin8 LED4-

And in post#61 you have this:
in1 LED1 + =89V
----------------------
Pin2 LED1 - =175V
------------------------
Pin3 LED2 + =89V
-----------------------
Pin4 LED2 - =176V
-----------------------
Pin5 LED3 + =96V
----------------------
Pin6 LED3 - =176V
---------------------
Pin7 LED4 + =96V
----------------------
Pin8 LED4 - =176V

None of you reading make any sense

[markolino]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

Ok I'll write again. You first told me I needed to measure pin + and pin on the LED L1 connector

on post 52 is a mistake. I think I measured ( +) and ( - )without connecting to the LED strips only to PowerBoard out signal

today I measured with a voltmeter minus (-) I put it on the ground of the motherboard, and I put the positive pole ( + ) on the LED1 connector
on (+) and on (-) and got different voltages, with a connected LCD strip connector
So you are interested in how much voltage I get on the L1 connector measuring (+ )and ( - )with a voltmeter, and with a connected LCD strip connector
I am right ?

[pier12]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

Ok I'll write again. You first told me I needed to measure pin + and pin on the LED L1 connector

on post 52 is a mistake. I think I measured ( +) and ( - )without connecting to the LED strips only to PowerBoard out signal

today I measured with a voltmeter minus (-) I put it on the ground of the motherboard, and I put the positive pole ( + ) on the LED1 connector
on (+) and on (-) and got different voltages, with a connected LCD strip connector
So you are interested in how much voltage I get on the L1 connector measuring (+ )and ( - )with a voltmeter, and with a connected LCD strip connector
I am right ?

Voltage between pin 1 and pin 2 respectively between pins 3-4, 5-6 and 7-8 must be 80-90V with a connected LCD strip......or voltages measured between pin 1 and cold ground respectively between 3-ground, 5-ground and 7-ground must be equal around 170-190v.....voltages between pin 2 and ground respectively between 4-ground, 6-ground and 8-ground is =(170-190)v-(80-90)V.....

[budm]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

aaaaaa okk.

I understood now.
Here are the measurement tasks.

This is result.

Pin1 LED1 + =89V
----------------------
Pin2 LED1 - =175V
------------------------
Pin3 LED2 + =89V
-----------------------
Pin4 LED2 - =176V
-----------------------
Pin5 LED3 + =96V
----------------------
Pin6 LED3 - =176V
---------------------
Pin7 LED4 + =96V
----------------------
Pin8 LED4 - =176V

That has to be measurement error, you cannot have the 89V on the high side of the load which are the LED + (Anode of the LED strings) which is fed by the boot converter to be less than the LED- (Cathode return of the LED string to GND via MOSFET and current sensing resistors)) which is the low side of the load. See the schematic of the circuit you had attached in your post. Your earlier post you had 180V on the LED +.
BTW, so you can force on the power supply and the backlights and the backlights come on and stay on as long as the power is applied to the power supply board (without connection to the main board), correct?

[markolino]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

When I get a new T-Com board, I'll report back. Until then, I don't mean to mess with LEDs

[markolino]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

Does my tv have side drivers?
The one where you cheerfully cut away at 70 inches of sharps

Little do I suspect that my LCD panel is not short circuit
But I'm not sure.
So I ask if my LC60LE635E has side drivers

[pier12]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

Does my tv have side drivers?

So I ask if my LC60LE635E has side drivers

Yes, your TV LCD screen have rows and columns drivers named Chip On Film...

[R_J]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

Don't start ripping off tabs, If you look at the screen pictures you provided, when you forced the led's ON, you only have 3 of the 4 sections that lit up. This panel has 4 edge lit sections. Section number 4 is not lit

[markolino]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

Thank you. R_J
First of all, I can manage to turn on the Tv, when I manage to do that I will go into the purchase of new led strips.
I ordered another T-com plate. When I get it, I'll report it to you

[markolino]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

Hiii guys:
Finaly arivet from china T-Com board for my Sharp.
And results is:

What is the problem now ?? :-(
TV backlite light work...
Lock this picture

https://www.file.si/drive/s/I6j7Il4i...uzPqPu8kRhvvwT
https://www.file.si/drive/s/3e2LJGIV...too27oQQZIxqSt

[markolino]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

Look this new picture and video.
Please help.. Thanks.

https://www.file.si/drive/s/ODAFuGMd...naPI9dsi7aRkC7



https://www.file.si/drive/s/FRajlOnt...gumHkgsdYzPF1I



https://www.file.si/drive/s/f5JcRSNg...kVRKpmD381ZJgJ



https://www.file.si/drive/s/r3LbKAWl...QWWH48kCp1T3W5



https://www.file.si/drive/s/9GbaSi1L...ZQvuHDWAKpteb0



https://www.file.si/drive/s/HZcIiIFs...yYtmETDdjluklG



This is Video

https://www.file.si/drive/s/qqknjNhd...ZshFNVgZfmLrMj

[markolino]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

Any Idea ?

[markolino]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

.......

[budwich]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

looks like the tcon isn't good or is wrong for the set. also check the tcon to main board cables for damage.

[markolino]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

thank you for everything.
i replaced the t-con board again with the original and woolaa TV is working back to normal.

for all those of you who will have the same problem as me now you know where the problem is.
error: lights are flashing:

2 slow 5 fast

thank you to everyone who helped me.
I am attaching a picture and a video in the attachment.




And link of the video.
https://youtu.be/3bowOIZgdCA

[nomoresonys]

Re: TV Sharp AQUOS LC-60LE635E TV not power ON

"i replaced the t-con board again with the original and woolaa TV is working back to normal." So you put your original tcon back in and the tv worked or you ordered the right tcon??