I have this Vizio VO370M TV that I'd like to save because it has very low input lag (as good as the most expensive TVs sold today!, https://alantechreview.blogspot.com/...input-lag.html), but it has a very annoying issue: sometimes the backlight flickers (or is just kind of dim). The flicker is slower than 60hz, so we aren't just talking some kind of motion compensation).
I was hoping maybe it was a power board issue (aka failing caps) but I opened it up and I don't see any that look bad. I have a budget capacitance/ESR meter if it's worth checking those in detail but I was wondering if that's the place to start. I haven't done any diagnostics at all other than taking it apart and looking at the caps with my bare eyes.
This has a CFL backlight, so maybe the tube is dying of old age? An ebay search did not turn up any separate inverter boards for this model (https://www.ebay.com/sch/i.html?_fro...leDesc=0&rt=nc) so I assume if it's not the tube it's the main power board. Interestingly, there seems to be at least two different power boards listed on ebay for this model, suggesting one model number mapped on to multiple devices.
I can take pictures of the boards in my specific device if that's helpful.
I did a search on the board and didn't see any general advice for diagnosing flickering backlights, sorry if I missed the relevant FAQ entry.
I was hoping maybe it was a power board issue (aka failing caps) but I opened it up and I don't see any that look bad. I have a budget capacitance/ESR meter if it's worth checking those in detail but I was wondering if that's the place to start. I haven't done any diagnostics at all other than taking it apart and looking at the caps with my bare eyes.
This has a CFL backlight, so maybe the tube is dying of old age? An ebay search did not turn up any separate inverter boards for this model (https://www.ebay.com/sch/i.html?_fro...leDesc=0&rt=nc) so I assume if it's not the tube it's the main power board. Interestingly, there seems to be at least two different power boards listed on ebay for this model, suggesting one model number mapped on to multiple devices.
I can take pictures of the boards in my specific device if that's helpful.
I did a search on the board and didn't see any general advice for diagnosing flickering backlights, sorry if I missed the relevant FAQ entry.
Comment