Sony KDL-40W2000 3 LED Blnks Error

[StephenU]

Re: Sony KDL-40W2000 3 LED Blnks Error

Hi all many thanks for the input my findings are as follows:
I get all CN6200 voltages when TV relay clicks to try and turn on after that the relay clicks and goes off I'm sure as all voltages start dropping significantly apart from 3v3 standby.

If I disconnect all connectors from PSU no relay click at all, something is causing the fault other than the psu I think.

I can't get a reading from the IC as it cuts to the error mode too quick.

Hope that makes sense, I think it's related to the main board as I get the same values with Tcon disconnected, something is triggering the 3 blink error.

Thanks guys.

S.

[nomoresonys]

Re: Sony KDL-40W2000 3 LED Blnks Error

The one I read said if you do have the standby then it's the mainboard at fault.

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

Thanks, just post in here in the forum, that is what this open forum is all about, learning and understanding.

[Diah]

Re: Sony KDL-40W2000 3 LED Blnks Error

for record this is not first time i discusses this over here... before i did on Toshiba with some one from UK. and i leaved the answer to the owner of the thread .. and here i will do it again you can write me i will do my best to answer what i know.

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

LOL TV are built on Linux 100%

So? Which pin of the IC6100 grounded out the 3.3V power supply, simple?

[Diah]

Re: Sony KDL-40W2000 3 LED Blnks Error

LOL TV are built on Linux 100%

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

What DOES the LINUX has to do with the device grounding out the 3.3V that you indicted when the device has no connection to the 3.3V?

[Diah]

Re: Sony KDL-40W2000 3 LED Blnks Error

I am trying to understand how the 3.3V is grounded by the IC6100 and caused 3-blink as you indicated and not going by the service manual, is it that hard to explain? IC6001 has no connection to the 3.3V power supply line so how does it ground that out?

budm ... this cant be explained if you don't know the basic of Linux script code.

you can start to explain how does error code generated and redisplayed on front indicator.. which part over all TV are Premiere one PSU or MB??

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

I am trying to understand how the 3.3V is grounded by the IC6100 and caused 3-blink as you indicated and not going by the service manual, is it that hard to explain? IC6001 has no connection to the 3.3V power supply line so how does it ground that out?

[Diah]

Re: Sony KDL-40W2000 3 LED Blnks Error

"when 3.3V went grounded via IC6100 there other line continue feed the set to register error." How does IC6100 ground out the 3.3V? I do not see how IC6100 will ground out the 3.3V, I do not see 3.3v supply line connected to IC6100.

do you want to learn or to make point... i am here also to learn from points i didn't face before... did you know about what i wrote (script) how it work on SMPS or SPI... what does it mean at TV platform since 80th .. sorry to say if some one don't know any about this stop make conflict between stand alone hardware and dual one.

i leave it to OP come to result.

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

this UNIT are dual IC made ONLY by Sony self as SPI and SMPS. it had script run on and off too

"when 3.3V went grounded via IC6100 there other line continue feed the set to register error." How does IC6100 ground out the 3.3V? I do not see how IC6100 will ground out the 3.3V, I do not see 3.3v supply line connected to IC6100.

[Diah]

Re: Sony KDL-40W2000 3 LED Blnks Error

this UNIT are dual IC made ONLY by Sony self as SPI and SMPS. it had script run on and off too

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

SM manual page 60.
So how does 3,3V STBY is grounded via IC6100? So you are saying the SMPS IC6100 (for the +18v, +15v, +10.5V, and +33V) is bad?
I do not see STBY 3.3V feed the IC6100 which is in the HOT side.

[Diah]

Re: Sony KDL-40W2000 3 LED Blnks Error

look on the photo OP posted PSU 18 legs IC

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

Which board and at what page of the service manual IC6100 located?

[Diah]

Re: Sony KDL-40W2000 3 LED Blnks Error

wrong
3 error blink very wide at Sony platform not all listed on service manual are the case.. when 3.3V went grounded via IC6100 there other line continue feed the set to register error. this is from experience not SM.

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

Service manual:
https://www.manualslib.com/download/...l-40w2000.html
Error code 3-blink:
3 ) UNREG10.5V, PANEL5V Voltage Trouble (DCALERT
So perform test as RJ suggested.

[R_J]

Re: Sony KDL-40W2000 3 LED Blnks Error

There may be a problem with the panel, check if you have +5v on the t-con, Also disconnect the lvds cable between the t-con and the main and see if you get the same error.

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

If you are getting the led on the front of the tv and you here the relay click when you press the power button, you MUST have STBY3.3V. Check for the STBY on L6300 It will be there.

If you had an older SONY CRT you WOULD find these parts. This has NOTHING to do with this LCD tv. got to love the internet

+1, no way you can have blinking LED if the STBY 3.3V is not present.

[R_J]

Re: Sony KDL-40W2000 3 LED Blnks Error

If you are getting the led on the front of the tv and you here the relay click when you press the power button, you MUST have STBY3.3V. Check for the STBY on L6300 It will be there.

This is also a problem in the power supply circuit, check T603 and R672. (I cannot find these parts on the schematics at all most parts have the letter of the component and then 4 numbers.) ""

If you had an older SONY CRT you WOULD find these parts. This has NOTHING to do with this LCD tv. got to love the internet