Author Topic: KD-55X8005C  (Read 256 times)

0 Members and 1 Guest are viewing this topic.

leec32

  • Newbie
  • *
  • Posts: 3
KD-55X8005C
« on: December 21, 2018,07:33:09 »

hi

i have a SONY KD-55X8005C and last week all of a sudden it went off with no power, i replaced the power board and t con board and had constant green/orange blinking

ive done the latest via usb update which seemed to go ok but after it had finished it wouldn’t power again.

after tinkering around i have found out that if i disconnect the LVDS cable from the main board all powers up, backlights lit up sound etc but obviously no picture

i actually now think my original power board and tcon are ok because i have tried with both of them again and getting the same.

could it be the LVDS cable or the main board

any suggestions would be greatly appreciated

thank you

Mulja tv repair portal

KD-55X8005C
« on: December 21, 2018,07:33:09 »

downunder

  • Hero Member
  • *****
  • Posts: 1028
Re: KD-55X8005C
« Reply #1 on: December 23, 2018,04:34:16 »

I have had the same experience with a KDL-W850. Changed both main and T-con boards twice and updated the firmware. Ended up writing it off.

Try reconnecting the LVDS cable and removing the 2 flexi cables between the T-con and the panel. Does it power up then? If it does, reconnect one of those flexies and try again. If 1/2 the screen lights up pure white, refit that flexi and remove t'other one. Power on. If the other 1/2 of the screen stays black or is covered in vertical lines, then the panel is dragging things down.

Bruce

leec32

  • Newbie
  • *
  • Posts: 3
Re: KD-55X8005C
« Reply #2 on: December 23, 2018,05:02:57 »
hi bruce

thanks for the reply, when i leave the LVDS connected and remove the other 2 i have powered up and just get the green/orange flashing light again now

Mulja tv repair portal

Re: KD-55X8005C
« Reply #2 on: December 23, 2018,05:02:57 »

downunder

  • Hero Member
  • *****
  • Posts: 1028
Re: KD-55X8005C
« Reply #3 on: December 24, 2018,02:28:40 »

 Alternate flashing green/amber light means it's agitating for a firmware upgrade. When I ordered my T-cons, the supplier told me that they may need a firmware upgrade. Now I don't know if the T-con is covered by the general upgrade or if it needs a special jig, but I suspect this is where I came unstuck with mine, because no matter what combination of boards I used and upgraded, I never once saw a picture.


Unfortunately, you won't be able to proceed until it gets what it wants. As I couldn't advance my repair, I pulled the pin on it. Good luck with it.


Bruce

leec32

  • Newbie
  • *
  • Posts: 3
Re: KD-55X8005C
« Reply #4 on: December 24, 2018,05:39:30 »
Thanks bruce, i did speak to a sony tech and they said it is probably the lcd panel  :41:

 

Powered by EzPortal
download