Broken Agilent MegaZoom MSO-X 3014A - EBAY - Page 1
Forum section: electronics / testgear

author: StefikMichal
author_rank: Contributor
timestamp: September 20, 2022, 09:16:04 pm
content: Hello, I have specific question. On Ebay I found this listing:eBay auction: #https://www.ebay.com/itm/325347412207?hash=item4bc03788ef:g:2DMAAOSwPgFjJg8NDo you think that it is fixable? (ofc not by replacing everythingor if it's worth the risk)I've read about some NAND corruptions on Agilent/Keysight scopes, but I don't know, if it is probably this case. Seller states it as "at all in contact with the mains it does not work, the fan does not start, it does not show signs of ignition"

author: switchabl
author_rank: Frequent Contributor
timestamp: September 20, 2022, 09:25:54 pm
content: That doesn't sound like NAND corruption, otherwise it would at least start to boot (and then get stuck). So probably an actual hardware defect. Fixable? Probably. Easily fixable? Maybe, maybe not.

author: Ivan7enych
author_rank: Regular Contributor
timestamp: September 20, 2022, 09:31:59 pm
content: Most probably internal power supply unit has failed, that's easily replaceable with a good 13V power supply block.My Aliglent mso3014a has failed twice with smoke and flash in this power unit (bad circuit design, there is a thread about it), I repaired it, and in a year it failed again, then I replaced it with meanwell unit, now it works fine.Found -https://www.eevblog.com/forum/repair/agilent-keysight-3034a-x-series-oscilloscope-repair/msg2968710/#msg2968710https://www.eevblog.com/forum/repair/dso-x-3024a-power-supply-defect/

author: nctnico
author_rank: Super Contributor
timestamp: September 20, 2022, 09:39:49 pm
content: Agreed. Sounds like a broken power supply. But there is a slight possibility somebody has already opened it, tried to repair it and didn't attach the power supply cable. Buying broken equipment is always a gamble so don't pay too much. Especially since this DSO isn't very special to begin with. The current bid price is already at the limit of what is a sane price to pay and likely the price will go up do to auction fever.

author: StefikMichal
author_rank: Contributor
timestamp: September 21, 2022, 12:26:07 pm
content: So, price is now at 200 € + 46 € shipping and that means I probably won't bid anymore. But thanks for answers.

author: TheSteve
author_rank: Unknown
timestamp: September 21, 2022, 03:32:24 pm
content: Still very cheap.

author: StefikMichal
author_rank: Contributor
timestamp: September 21, 2022, 03:48:55 pm
content: Yes, I later changed my mind and decided to go up and bid 250... in last seconds someone bid 300, 500 and winning bid was 772 €that was too much for me.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 21, 2022, 05:11:48 pm
content: you thread was seen loll

author: HighVoltage
author_rank: Super Contributor
timestamp: September 21, 2022, 05:24:35 pm
content: If repairable with a new PSU (most likely) it was still a good deal at 772 €

author: TheSteve
author_rank: Unknown
timestamp: September 21, 2022, 06:56:03 pm
content: Quote from: HighVoltage on September 21, 2022, 05:24:35 pmAgreed!

author: StefikMichal
author_rank: Contributor
timestamp: September 21, 2022, 09:21:14 pm
content: Hmm, it's not a big problem for me. But at least I'm learning every day about prices of used equipmentPS: Is there a thread with average/recommended prices for used equipment? I found these only for new equipment.

author: tv84
author_rank: Super Contributor
timestamp: September 21, 2022, 09:24:18 pm
content: Quote from: StefikMichal on September 21, 2022, 09:21:14 pmThere is no specific, and don't ask more examples or you'll loose everyone you see!