2-year old sony xbr-75x850G no power;
Tried power reset and other suggestions w/o results;
I am quite handy and have a multimeter; it would be great to have diagnostic flow char (similar to an existing answer post but that was for xbr-75x850C).
Thanks,
Bai
Bu iyi bir soru mu?
5 Yorum
Is the display showing any signs of life at all?
Repair Skeleton tarafından
Hi, Have you checked if the fuse on the power board is OK, you never said?
jayeff tarafından
1. No sign of life, but my Klein voltage tool beeped on high V area as well as low V area; multimeter detected no voltage at every point I checked, including pins should show stay, and 12v
2. Fuse is ok
Bai Gu tarafından
@Bai Gu
Post a close up image of the power board back here. Here's how to do this on ifixit Adding images to an existing question
What model is the Klein voltage tester? Looking online it seems that some will detect AC but this may mean that they can't detect DC.
To do board level repairs you really need a DMM (digital multimeter) with a display that shows what the voltage is be it AC or DC and not one that just indicates that voltage is there with a beep or a LED, be it high volts or low volts
For example- if low volts it may not be enough - it could be 5V when it should be 12V and you would still get a beep but it is not enough to make things work, if you get what I mean
jayeff tarafından
The Klein tool is ncv t-2; it does not specify whether it can be used for DC; if it cannot, then it clears my puzzle and the tool seems to suggest there are low voltage but my digital multimeter shows 0 or 0.2-0.3 at almost all low V side points.
Thanks for your suggestions
Bai
Bai Gu tarafından