Bad Caps KOGAN TV - CAPXON rears it's head again - Page 1
Forum section: electronics / general

author: notsob
author_rank: Frequent Contributor
timestamp: October 03, 2012, 09:10:52 am
content: Recently opened up a 32" kogan LCD TV to replace a stuffed speaker. I noticed orange coloured spew inside the rear cover of the TV adjacent to the PSupply.All the output caps on the power supply were CAPXON, one had blown the electrolyte out the top. So I replaced all the Caps with panasonic ones.So it is likely that a few kogan brand TVs will start failing in the near future.As for the speaker, (we'll both of them) the membrane along 1 side had released itself from the metal case on both speakers. Also of note, the remote requires replacing or new conductive compound on the keys, however the epoxy repair kits are far too expensive for one off repairs.Some pics:

author: tom66
author_rank: Super Contributor
timestamp: October 03, 2012, 11:19:04 am
content: Ah, CapXon! We meet again!Truly the worst capacitor in the world. I have pulled ~100 bulged caps from TVs and other widgets... and over half of them are CapXon. Seriously, even the new ones, less than a couple years old, are still failing. I think it's planned obsolescence in action; if it isn't, it's somehow serious incompetence.I thought KOGAN was just one of those new companies that has got the fantastic idea to badge up crappy supermarket tellies as premium brands at a reasonably premium price. Toshiba, Sharp and JVC are now doing that - their lower end models (<£400) are usually rebadged Vestel TVs, so you get exactly the same build quality and picture quality as from a crappy Alba or Technika. Apparently Sony's new DVRs are also rebadged Vestel products! Also, watch out for Finlux. I don't think they sell them out of Finland but they advertise themselves as Finnish TVs. The company is owned by Vestel of Turkey. And Vestel TVs... don't get me started. Their build quality is abysmal and they usually use the lowest end LCD panel so you often get inferior picture quality. In the shop it looks good due to bright lighting but you get it home and you see significant backlight leakage, mura, unevenness, dead pixels, etc.

author: Entropia
author_rank: Regular Contributor
timestamp: October 03, 2012, 12:11:58 pm
content: Finlux used to be really high quality but I think they went bust in the late 90s or early 00s (before the LCD TVs anyway) and only the brand name lives on (to cheat people).I've recently repaired quite many DVR power supplies. Topfields seem to trust SAMXON which frankly isn't very good. MAXIMUM had G-Luxon brand caps, they failed too. Now my own Humax Wbox HD is starting to lose signal as well, I wonder what caps Humax uses...A few Samsung LCD computer monitors had CapXon, they were the only ones that were visibly bulged. Even the higher-end models (that have composite/S-video inputs) use the CrapXons.

author: SeanB
author_rank: Super Contributor
timestamp: October 03, 2012, 03:26:12 pm
content: Just fixed a TV monitor this week, with one faulty capacitor. A 10uF 160V Nichicon capacitor, with a bulge and one leg rotted off. Replaced with the nearest value from a scrapped monitor, 47uF 350V, which fitted perfectly. Nothing else done and a reasonable picture on the rather flat and burnt tube. not bad for a TV set that has been on every working day since 1992. Of course the integrated VCR does not work at all any more.

author: tom66
author_rank: Super Contributor
timestamp: October 04, 2012, 12:18:01 am
content: I would imagine Sonic would be Chinese OEM, so I'd expect CapXon, or the similar (but still bad) JH and RH capacitors. I recall Samsung having big problems with the large primary JH caps in their TVs failing.Older Nichicon seem to die... but lasting 20 years ain't bad!... all electrolytics eventually fail.