Sharp LC-70LE650U


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Sharp LC-70LE650U

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caryd12
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Dec 29, 2014, 4:10 AM

Post #1 of 16 (9551 views)
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Sharp LC-70LE650U	Can't Post

***Updated tried a different method for sharing the pictures, sorry about that***

I have a sharp 70" led tv that just started giving me an odd green effect with horizontal green lines and only on half of the screen showing a picture. Please see the attached pictures. Is there a common board that can be replaced? I have removed the back of the unit and I do not see any obvious signs of burnt or loose connections. Audio works fine.

(This post was edited by caryd12 on Dec 31, 2014, 1:43 AM)

jts1957
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Dec 29, 2014, 11:41 AM

Post #2 of 16 (9506 views)
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Re: [caryd12] Sharp LC-70LE650U [In reply to]	Can't Post

NICE pictures. Tongue

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Location: Far, Far Away

Ron.M
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Dec 29, 2014, 10:18 PM

Post #3 of 16 (9477 views)
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Re: [jts1957] Sharp LC-70LE650U [In reply to]	Can't Post

caryd12;...

Problem resolved...

Thank you VERRRY much for your co-operation...

Myself , the techs here & future readers DO appreciate it ...

Have a Happy , Healthy & Sober New Year !!!

Later...Ron.M......
Veteran & Retired TV technician

(This post was edited by Ron.M on Dec 31, 2014, 6:26 PM)

jts1957
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Dec 29, 2014, 10:47 PM

Post #4 of 16 (9476 views)
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Re: [caryd12] Sharp LC-70LE650U [In reply to]	Can't Post

BIG PICTURES! I think there may be three.

Ron:
For reference, your post and my post look the right size on my 48" TV/Monitor. Hiz look too wide. I had to sit down and catch my breath on the way to his reply button. Crazy

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Location: Far, Far Away

(This post was edited by jts1957 on Dec 29, 2014, 10:52 PM)

Ron.M
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Dec 30, 2014, 1:26 AM

Post #5 of 16 (9470 views)
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Re: [jts1957] Sharp LC-70LE650U [In reply to]	Can't Post

jts1957;...

I have NO clue as to how many pix are there !!!
I could NOT get but 1/2 (?) of the top pix loaded up !!!

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For reference, your post and my post look the right size on my 48" TV/Monitor.

Glad to hear/see that !!!..
48"...WOW , that makes my 17" look like a ladies compact mirror !!!.. Tongue

Quote

I had to sit down and catch my breath on the way to his reply button.

With your suspected background , wouldn't a source of oxygen (ie , mask or tank ??) be advisable ???

Hope you had a GREAT Holiday...
I wish you & your loved ones a Happy , HEALTHY (<< Especially in your case) & Sane New Year !!!

Later...Ron.M... Cool

..
Veteran & Retired TV technician

jimmy12
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Dec 30, 2014, 7:42 AM

Post #6 of 16 (9457 views)
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Re: [caryd12] Sharp LC-70LE650U [In reply to]	Can't Post

Try to change capasitor smd mainboard

Ron.M
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Dec 30, 2014, 7:59 PM

Post #7 of 16 (9438 views)
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Re: [jimmy12] Sharp LC-70LE650U [In reply to]	Can't Post

jimmy12;...

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Try to change capasitor smd mainboard

That's about as useful advice as tits on a bull !!!
Better to keep mouth shut & be thought of as stupid than open your mouth & remove ALL doubt !!!

Later...Ron.M... Cool

..
Veteran & Retired TV technician

(This post was edited by Ron.M on Dec 30, 2014, 8:02 PM)

caryd12
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Dec 31, 2014, 1:45 AM

Post #8 of 16 (9427 views)
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Re: [Ron.M] Sharp LC-70LE650U [In reply to]	Can't Post

Ok I removed the pictures because they are of no consequence now. The screen no longer comes on, I get 5 fast flashes and 2 slower flashes on the little arrow light at the bottom of the TV.

jts1957
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Dec 31, 2014, 5:04 AM

Post #9 of 16 (9425 views)
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Re: [caryd12] Sharp LC-70LE650U [In reply to]	Can't Post

Power PWB failure (Power failure, etc.)

Slow flashing: Flashes twice

Fast Flashing: Flash 5 times: Panel power supply error

Error type: PANEL_POW Panel 12V failure
Flashes fast 5 times

Pins are monitor microcomputer pins unless otherwise specified.
DET_PNL12V failure (L). Panel power is not applied.

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Location: Far, Far Away

caryd12
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Jan 2, 2015, 4:19 AM

Post #10 of 16 (9393 views)
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Re: [jts1957] Sharp LC-70LE650U [In reply to]	Can't Post

I read the same thing regarding the error code, I ordered a main video board and power supply board to hopefully resolve the issue

jimmy12
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Jan 2, 2015, 9:27 AM

Post #11 of 16 (9388 views)
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Re: [Ron.M] Sharp LC-70LE650U [In reply to]	Can't Post

You can only insulting but not give solutions. I work in the field of repair technicians most Indonesian Tv Crazy

jts1957
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Jan 2, 2015, 2:52 PM

Post #12 of 16 (9384 views)
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Re: [jimmy12] Sharp LC-70LE650U [In reply to]	Can't Post

Then you should know ALL about part location numbers ... Shocked

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Location: Far, Far Away

caryd12
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Jan 6, 2015, 2:33 AM

Post #13 of 16 (9339 views)
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Re: [caryd12] Sharp LC-70LE650U [In reply to]	Can't Post

I have replaced the main board (where all the HDMI connections are) and the power board. I tested to make sure I have 5V DC coming out of the power board and receiving 5V DC into the main board. I am still getting 2 slow flashes and 5 fast. Any suggestions?

Incoming power appears to be steady 120V

caryd12
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Jan 6, 2015, 3:02 AM

Post #14 of 16 (9338 views)
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Re: [caryd12] Sharp LC-70LE650U [In reply to]	Can't Post

FYI the screen doesn't power on unless I press the power button which will interrupt the 2 slow 5 fast and turn the light solid for about 30 seconds, sometimes the screen will flash on for just a second. I have a hard time replicating this, it almost seems like a short because of the intermittent behavior.

I have done a continuity test between all the wires on all boards. I could not do a continuity test on the solid silver ribbon cable that runs in between the main board and the T-Con DUNTKF975WE14 board.

jts1957
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Jan 6, 2015, 5:16 AM

Post #15 of 16 (9337 views)
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Re: [caryd12] Sharp LC-70LE650U [In reply to]	Can't Post

LED Backlight does not turn on.

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The screen no longer comes on

When power supply unit is replaced, does it start normally? NO
When main unit is replaced, does it start normally? NO

When LCD control unit is replaced, does it start normally? ? (IF NO - then)

When the parts in the panel can be replaced. then Replace all LED-bars in the panel module.
When the parts in the panel cannot be replaced. then Replace panel module.

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Location: Far, Far Away

(This post was edited by jts1957 on Jan 6, 2015, 5:19 AM)

caryd12
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Jan 6, 2015, 5:40 AM

Post #16 of 16 (9351 views)
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Re: [jts1957] Sharp LC-70LE650U [In reply to]	Can't Post

Another update:

I believe it is the small T-CON board now. I realized if I unplugged the right side ribbon cable that the screen lit up and the left side displayed a normal picture. I swapped the ribbon cables from left to right and the problem remained the same leading me to believe the problem is in the board and not the cables. I have ordered the board and will update once I replace it

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