Sony Bravia KDL40EX703 Flahes 6 times in stand by


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Sony Bravia KDL40EX703 Flahes 6 times in stand by

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perrin0795
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Nov 11, 2013, 6:30 PM

Post #1 of 14 (20716 views)
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Sony Bravia KDL40EX703 Flahes 6 times in stand by	Can't Post

Help!!! - Had my Sony Bravia KDL40EX703 for about 3 years - turned it on this morning light went green then to red and flashed 6 times

Know a little about TV repairs blown Caps - but really just starting out (my enthusiasm surpasses my experience) found the Sony Blink Codes list pasted below for the 6 Blinks
SIX Blinks---No Horizontal (H STOP), no raster, goes to the blinking self diagnosis
function immediately. Check C515 & 516 and the jungle IC, IC206.

Got the back off the TV but struggling from there on in cannot locate C515 & 516 and the Jungle IC?? IC206???
Willing learner requires guidance "OBI'ONE" Mad

Ron.M
Veteran

Nov 11, 2013, 7:05 PM

Post #2 of 14 (20708 views)
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Re: [perrin0795] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

perrin0795:.....

1st off , I need to tell you that I do not work on LED/LCD or Plasma TVs...

But , I can tell you that you have a 40" L-C-D TV....
The blinking code you quoted applies to analog (CRT type) TVs & NOT ANY of the new flat screen TVs...
They have a different code system for those sets...
""No Horizontal (H STOP), no raster" refers to the horizontal deflection circuits in the older TVs..
You would need a service manual for that set to work on it...
However , manufacturers today are not prone to giving techs ALL the info they need in the newer manuals..

Good Luck with your repairs....

Later...Ron.M... Cool

...
Veteran & Retired TV technician

(This post was edited by Ron.M on Nov 12, 2013, 1:25 AM)

perrin0795
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Nov 11, 2013, 7:33 PM

Post #3 of 14 (20701 views)
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Re: [Ron.M] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

Thank you Ron.M

The 6 Blinks code post was all I could find that was similar to my fault at least your post identifies what I was looking at was incorrect.

Thank you Ron.M (again) Smile

Ron.M
Veteran

Nov 11, 2013, 7:37 PM

Post #4 of 14 (20699 views)
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Re: [perrin0795] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

perrin0795;....

You're very welcome....

Hang in there , we have some VERRRY good techs that hopefully will come along soon to help you out...

Good Luck.... Sly

....

Later.Ron.M.... Cool

..
Veteran & Retired TV technician

jts1957
Veteran

Nov 12, 2013, 12:28 AM

Post #5 of 14 (20682 views)
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Re: [Ron.M] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

Oh Ron...

Quote

But , I can tell you that you have a 40" PLASMA TV....

http://www.sony.co.uk/.../product/KDL-40EX703

Letters my old failing eyes make out are L-C-D. Wink

-------------------------
Location: Far, Far Away

jts1957
Veteran

Nov 12, 2013, 12:43 AM

Post #6 of 14 (20681 views)
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Re: [perrin0795] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

STBY LED Flash time 6: BACKLITE Back Light Error (Panel Inverter)

-------------------------
Location: Far, Far Away

(This post was edited by jts1957 on Nov 12, 2013, 12:44 AM)

Ron.M
Veteran

Nov 12, 2013, 1:24 AM

Post #7 of 14 (20673 views)
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Re: [jts1957] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

jts1957;.....

YUP , you are right....
I had a "brain fart" !!!!... Unsure

...
Seems to be happening more often now that I'm on chemotherapy... Shocked

...
Rest of post stays the same... Sly

...
Went back & made corrections... Angelic

...

THANKS..... Smile

....

Later....Ron.M.... Cool

...
Veteran & Retired TV technician

perrin0795
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Nov 12, 2013, 8:31 AM

Post #8 of 14 (20664 views)
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Re: [jts1957] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

Thank you for the info jts1957 - The question is look for a replacement board or try and identify the fault on my board and attempt a fix?? - Has anybody else had this fault?? - I'll search for a board look at the cost - Done little bits on TV's always been interested, but never on my own till now
http://s866.photobucket.com/user/gjperrin/library/

Taken some photo's of the tear down - x3 boards Was expecting the Back light inverter Board to be located at the side -Guessing it's the one in the middle?? Looking for any obvious signs and part numbers first thing that stands out is the board is manufactured by Sharp as is the LCD Screen Just adding some more info - there are a couple of wires going from the PSU board (in the first picture) going into the body of the LCD would this be where the back light inverter is located? most pictures of other models have them surface mounted on the rear of the LCD

(This post was edited by perrin0795 on Nov 12, 2013, 1:37 PM)

perrin0795
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Nov 12, 2013, 3:34 PM

Post #9 of 14 (20641 views)
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Re: [perrin0795] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

Another update - getting to be a bit of a mission

Traced the cables from the PSU, removed the bezel flipped the screen over to expose some more screws (that were underneath the bezel) removed those and lifted out the LCD plus the other elements/plastic and white sheets to expose a series of x4 tiny (things) see previous link for photo's (added to photo bucket)

Is this the fault that lies before me are these x4 things my faulty back light inverter - Please someone in the know put me out of my misery - Thanks in advance

perrin0795
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Nov 12, 2013, 5:38 PM

Post #10 of 14 (20638 views)
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Re: [perrin0795] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

Does anybody know if the PSU Board doubles up as the Inverter Board

Part Number 1-881-956-12

The Reason I ask is done the total tear down the back lights ran straight to the PSU board and no other

At Start up Light goes Green then after 1-2 Seconds a click is heard from the PSU Board

Then 6 Blinks at Stand By Unsure

jts1957
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Nov 12, 2013, 10:37 PM

Post #11 of 14 (20626 views)
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Re: [perrin0795] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

Edge lit LED (NOT CCFL) - Manual still calls it backlight error. Will NOT have an inverter board, but is still trying to inform as to lack of 'BL.'

-------------------------
Location: Far, Far Away

(This post was edited by jts1957 on Nov 12, 2013, 10:37 PM)

perrin0795
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Nov 13, 2013, 6:22 AM

Post #12 of 14 (20620 views)
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Re: [jts1957] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

So the question is if there is no Back Light Inverter Board

What can be repaired/replaced to repair the TV?

Is it the fault on the PSU Board to replace they range from �24 - �180 or is there somebody out there who repairs these boards?

jts1957
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Nov 13, 2013, 7:24 AM

Post #13 of 14 (20618 views)
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Re: [perrin0795] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

Just swap the boards until it starts to work. Wink

PSU (GE3-A) or Main (BAL)? (it's usually the last board you try).

-------------------------
Location: Far, Far Away

perrin0795
New User

Nov 13, 2013, 11:08 PM

Post #14 of 14 (20613 views)
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Re: [jts1957] Sony Bravia KDL40EX703 Flahes 6 times in stand by [In reply to]	Can't Post

Thanks JTS 1957 - Looks like scouring the internet looking for cheap boards to try - Thanks to everybody who helped Smile

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