Sony XBR-65X930D No screen

[yankys]

HI, everyone I want to say thanks for the help on the samsung. now it's my sons Sony XBR-65x930D I am trying to fix I've replaced the dps and main board did the firmware update, now I have the white light on bottom of the tv and it seem to turn on and off but no picture not sure how to precede could some possibly point me in the right direction.

[nomoresonys]

Re: Sony XBR-65X930D No screen

while powered up, see if theres about 12 volts on each side of the tcon fuse, neg. probe on chassis ground, pos. probe on each side of fuse.

[yankys]

Re: Sony XBR-65X930D No screen

I will check this as soon as I get back to the house and post my findings thank you.

[yankys]

Re: Sony XBR-65X930D No screen

@ fp1 fuse it only shows 0.6mv on both ends of the fuse.

[nomoresonys]

Re: Sony XBR-65X930D No screen

ok, and fuse tests ok, it shows continuity?

[yankys]

Re: Sony XBR-65X930D No screen

Yes fuse show continuity

[Diah]

Re: Sony XBR-65X930D No screen

micom didnt send signal to power boards to turn on T-CON 12V.
as you replaced Main boards and did firmware update.. and now it turn on and off.. so need to do reset..
while its on / white LED on ) plug it out from wall socket... press the middle joystick and pull it down... keep it at this position while you plug it in wall socket again... untill you have the while led turn to green keep press 3 second then release your finger.... leave it it could restart 2 time.

[yankys]

Re: Sony XBR-65X930D No screen

This maybe a dumb question what do you mean by middle joy stick?

[Diah]

Re: Sony XBR-65X930D No screen

This maybe a dumb question what do you mean by middle joy stick?

you don't have at the back side of the TV Joystick for controlling !!!!!

[yankys]

Re: Sony XBR-65X930D No screen

There button on side power/volume/channels

[Diah]

Re: Sony XBR-65X930D No screen

There button on side power/volume/channels

its android right!!!. so use power and volume -

[yankys]

Re: Sony XBR-65X930D No screen

I’ll do this and post the what happens Thank you

[yankys]

Re: Sony XBR-65X930D No screen

Had white light unplugged tv while on did the power volume - and it turned green let buttons go it went off came back on amber green went off came back to amber green and that is we're it staying.

[nomoresonys]

Re: Sony XBR-65X930D No screen

maybe a dead emmc chip.

[yankys]

Re: Sony XBR-65X930D No screen

Is this one of the ic chips on the main board?

[Diah]

Re: Sony XBR-65X930D No screen

it tell only one story..
the update you did after you replaced the main boards was not successful. or wrong file.
you need to ready USB stick with correct firmware.. and try again the reset while the usb inserted at the TV.

[nomoresonys]

Re: Sony XBR-65X930D No screen

Is this one of the ic chips on the main board?

Yes, if it will not update after all proper attempts and trying different usb drives because sonys can be fussy, then emmc is my guess.

[yankys]

Re: Sony XBR-65X930D No screen

Thank you for the reply's I have tried all kinds of ways to get this tv to turn on, but same results and I have three mainboards, and they all act the same could it possibly be the t-con board or something else causing this issue?

[nomoresonys]

Re: Sony XBR-65X930D No screen

did you try it with one ribbon cable at a time hooked up from tcon to panel driver board, see if theres anything on display or any change, don't let the end of the loose cable touch anything such as metal chassis, don't want to short anything out. Best to do all connect and disconnect of cables with tv unplugged from power to avoid any errant surges and such.

[nomoresonys]

Re: Sony XBR-65X930D No screen

so with all three mainboards you are getting no voltage on the tcon fuse?