Sony KDL-40W2000 3 LED Blnks Error

[nomoresonys]

Re: Sony KDL-40W2000 3 LED Blnks Error

F and G may be some kind of Country code, not sure, F may be the correct one for your Country.

[StephenU]

Re: Sony KDL-40W2000 3 LED Blinks Error

Usually need to match up the top letter/numbers on the white sticker of your mainboard, what is your panel number?

Look for A-1196-582-G, on sticker of your board and the replacement board.

This MIGHT work I see the very last letter is different F vs G, don't know how knowledgeable the seller is but you could contact m and ask if they know weather it will work or not, panel number matches: https://www.ebay.co.uk/itm/MAIN-BOAR...4AAOSwUv9c0UnY

Thanks for this I will update Post in due course.


S.

[nomoresonys]

Re: Sony KDL-40W2000 3 LED Blnks Error

Ok, I see 2 type boards on there, make sure you match the panel # LTY400HS-LH3 and you should be alright.

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

So what happen if you run the power supply board by itself and do the force on using 300 ~ 470 Ohms resistors between 3.3V and the POWER ON, and RLY_ON?
Do you get all the Voltage outputs as shown in the diagram?

[StephenU]

Re: Sony KDL-40W2000 3 LED Blinks Error

So what happen if you run the power supply board by itself and do the force on using 300 ~ 470 Ohms resistors between 3.3V and the POWER ON, and RLY_ON?
Do you get all the Voltage outputs as shown in the diagram?

Hi Budm, I have ordered a replacement Mainboard. Although I can try out these measurements over the weekend, can I take the measurements direct from the CN6200 pins 1, 2, 7, 8, 11, 13, 14 or locate the points you have highlighted on the Schematics? I've attached a pic to illustrate my connections between CN6202 pin 2 and CN6200 pin 5.

Thanks for your help Budm

S.

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

You need another resistor for the RLY_ON (Relay On), pin 5 (CN6200) to pin 4 (CN6202) with another 470 Ohm resistor.
Yes, you will be taking the Voltage measurement of the power supply connector since there will be no connection to the main board, we are doing the test to find out if the power supply board is OK or not.

[StephenU]

Re: Sony KDL-40W2000 3 LED Blnks Error

Hi all just like to thank everyone for their input and help getting this tv back up and running, replaced the Mainboard and all works fine now. I matched my replacement board up with my panel # LTY400HS-LH3.

[nomoresonys]

Re: Sony KDL-40W2000 3 LED Blnks Error

Another save, well done.

[budm]

Re: Sony KDL-40W2000 3 LED Blnks Error

Hi all just like to thank everyone for their input and help getting this tv back up and running, replaced the Mainboard and all works fine now. I matched my replacement board up with my panel # LTY400HS-LH3.

Thanks for the follow-up, too bad the thread got this long due to wasted time on the power supply board, especially the IC6100.

[Mikes043]

Re: Sony KDL-40W2000 3 LED Blnks Error

Hello , In the first place I have to thank all the people for sharing their knowledge on the subject.

I have the same problem as the OP.

I did the the voltage check by doing the Resistors trick
I used 470 ohm resistors from standby 3.3 to POWER_ON and RLY_ON

I put the 2 resistors on the single standby connector

than I measured n CN6202 18v to ground and that works.

Can someone tell me how to proceed ?

[dick_barton]

Re: Sony KDL-40W2000 3 LED Blnks Error

So you have all the supply voltages. 3.3V, 10.5V, 15V and 18V

[Mikes043]

Re: Sony KDL-40W2000 3 LED Blnks Error

So you have all the supply voltages. 3.3V, 10.5V, 15V and 18V

I am going to check that !

in thought just measure 18v and if it was the specified voltage @ 1 terminal In de connector.

the rest would be good also