Sony KD-65X7000E - Screen double images for first few minutes then back to normal

[nomoresonys]

Re: Sony KD-65X7000E - Screen double images for first few minutes then back to normal

maybe check the little mlc capacitors on the faulty side panel driver board for shorts or very low ohms.

[beetle1303]

Re: Sony KD-65X7000E - Screen double images for first few minutes then back to normal

faulty panel

Any insight into why the display is normal few minutes after cold-start?

[chrismurphy]

Re: Sony KD-65X7000E - Screen double images for first few minutes then back to normal

faulty panel

[beetle1303]

Hi,
I have gotten this Sony KD-65X7000E TV completely dead. According to owner TV was working fine and suddenly blackout and not able to power on again.
Checked and found D751 rectifying diode shorted, replaced and now power up and working almost normally:

1) On power up - display double images, and flicker once every few seconds.
2) After 3-4 minutes at this state - display suddenly back to perfectly normal (although there are few horizontal lines at the bottom of screen).
3) Leaving on for few minutes, power off and on again will repeat the same issue; but leaving it on for longer (like >30 mins) then power off and on again will not have this issue.

I experimented with T-Con ribbon cables during cold start:
1) Disconnected left-side cable - right-side display still double images
2) Disconnected right-side cable - left-side display is good.
3) Swopped the 2 ribbon cables - not difference
3) Taped a small section on the right-side cable - display is normal at cold start also.

Initial googling research seems to indicate shorted signal(s) path between left and right sides of panel PCBs, and taping method seems to have eliminated it. But why, presumably, after TV has wormed up the issue goes away?