Kdl75w850c

[charlie555]

6 blinking lights, SONY logo comes up for a sec and then off. I checked all diodes on power supply and found D6201 and D6202 which are side by side with continuity.

[mmartell]

Re: Kdl75w850c

I have the 65" version of this set. It had 6 blinks and had the same behaviour as yours and it was a bad led in one of the strips.

As for your they probably shouldn't show shorted. Lift one leg of each and test again.

[neilc6]

Re: Kdl75w850c

I googled for you and this post says 6 blinks is backlight.

https://us.community.sony.com/s/ques...language=en_US

[budm]

Re: Kdl75w850c

6 blinking lights, SONY logo comes up for a sec and then off. I checked all diodes on power supply and found D6201 and D6202 which are side by side with continuity.

Those Diodes are for the Standby power supply (you can see STBY_FB printed next to the OPTO PH6301) and that power supply is OK otherwise you will not get any indicator lights to show error code since the main board requires that Standby power supply to be working.
If you really want to test them, lift one leg off the board and retest, BTW, they are connected in parallel.
If you check the DCV between Cathode and chassis ground, you should see either 3.3V or 5V which are typical Standby Voltage for TV.

[charlie555]

Re: Kdl75w850c

Thank you all for your inputs

[charlie555]

Re: Kdl75w850c

so I lifted one of the legs to the diode and still getting tone. bad?

[budm]

Re: Kdl75w850c

so I lifted one of the legs to the diode and still getting tone. bad?

Getting tone on the lifted Diode?
What mode did you set your meter too?
What reading does it show on the meter?
Did you check the Voltage as I suggested?

[charlie555]

Re: Kdl75w850c

lol sorry, I was watching TOP GUN, I set my meter to diode tester. I lifted the side with no grey bar and still got continuity. will check today

[budm]

Re: Kdl75w850c

The end side with bar is Cathode, another end is Anode, meter should only beep when Black probe on Cathode Red probe on Anode, the meter will display the Forward Voltage of the Diode, when you reverse the leads then you should see 'OL'.

[charlie555]

Re: Kdl75w850c

ok ty