hybridfree/eevblog-posts huggingface dataset:
OKI (Metcal) MX-5000 off grid? - Page 1
Forum section: electronics / general

author: andrew96
author_rank: Newbie
timestamp: September 03, 2024, 07:40:16 pm
content: does anyone know how to make the (the one with the lcd display) work off grid? It just shows GND FAULT, but there is a good ground connection! works fine on grid. The older MX-500p-21 I borrowed to test works just perfect. Is my only option to downgrade to a older model? or has someone cracked being able to use these off grid?many thanksAndrew

author: thm_w
author_rank: Super Contributor
timestamp: September 03, 2024, 08:54:59 pm
content: MX500 is also supposed to have the same functionality.I assume its just testing if Neutral and Ground pins are connected, is your neutral floating?https://www.eevblog.com/forum/reviews/what-metcal/msg340565/#msg340565

author: andrew96
author_rank: Newbie
timestamp: September 04, 2024, 09:46:55 pm
content: Ah thankyou, Yes the neutral will be floating for sure, Being off grid its a inverter, just like in that post you kindly linked to which says using a isolation transformer it won't work! I wonder if anyone has worked out how it monitors and manage to trick the unit into working. hopefully someone has a idea on how.

author: thm_w
author_rank: Super Contributor
timestamp: September 04, 2024, 10:15:51 pm
content: Floating neutral is unsafe and you should not be setup like that in the first place.Google: neutral bonding off-grid

author: andrew96
author_rank: Newbie
timestamp: September 05, 2024, 11:03:24 am
content: Yeah I have worked out how I can do it!! I cannot bond the neutral of the inverter output to ground, Inverters really don't like that! I read that a lot when searching the net!BUT!!! my inverter CAN switch to grid power (if connected) when the solar is not available and the batteries have been exhausted, the Inverter IS earth bonded, to the earth terminal but doesn't have grid input, so I can just link the neutral input which would normally be connected to the grid to the earth terminal so it is PME bonded at the expected grid input terminals. this works perfectly when I tried it this morning!! If I ever connect grid to the inverter I just remove the link!!!!This way as thm_w says it will be safe! I had no idea on this floating neutral issue until using the Metcal, there is nothing about it in the inverters manual about that at all!! it just says the inverter can be used on or off grid with no further information!! so everything now works as if it was grid based power and safe!!Happy with that outcome!!!!Many thanks to everyone that took the time to read this post, and reply
DVB satellite data receivers re. encryption for one way satellite Internet - Page 1
Forum section: electronics / general

author: Scratch.HTF
author_rank: Regular Contributor
timestamp: September 03, 2024, 11:50:21 pm
content: One example of such is a SkyMedia SatLAN LX2000S DVB-S data receiver by Telemann Satellite Solutions (www.telemann.com) containing the following key components:ST20-TP4 system control (includes transport demultiplexer, smartcard interface and DVB-CSA decryption module)4 MByte 60 nS DRAM (32 bit wide)1 MByte Flash (16 bit wide)64 Kbit EEPROMCrystal CS8900A LAN controller with Lattice MACH 4 M4-64/32 interface CPLDSamsung satellite tuner (MAX2102 direct conversion receiver, SP5659 PLL, L64724 demodulator)Other than some of the magnetics on the power supply board, all components were available off the shelf which some can be second sourcedJ2 is a TTL serial console port with the following pinout which I traced myself:1: GND2: RxD3: TxD4: +5VIf anyone has a working unit that responds to ping, which TCP/IP ports are open (I'm guessing Telnet/SNMP and possibly HTTP would be present)?From what I can find, this model is not specific to a given provider and the encryption supported is AccessGate since this unit accepts a smartcard from the subscriber unlike the Hughes DirecPC units which also use DVB-S.Do you know of any other DVB-CSA compliant encryption schemes which require a smartcard for decryption associated with one way satellite Internet?
Aixun T3A next step - Page 1
Forum section: electronics / general

author: Personwithhats
author_rank: Contributor
timestamp: August 27, 2024, 11:55:01 pm
content: Getting tired of the poor heater control, fiddly handle, wonk grounding etc.Used it for a few years on and off and would like something more dependable as I'm starting to work with more temp-sensitive components.Have a bunch of genuine JBC C245 cartridges that I've accumulated.Anyone able to recommend a station that's noticeably better than the T3A clone but doesn't cost a few thousand?Mostly for working on small 8-pin DIP packages, 0402 surface mount, etc.I might be interested in rigging up a desoldering pump jig (I have vacuum pumps, can 3D print a handle'n stuff using the JBC spare part)Desolder tweezers would be nice but more of a want than a need

author: CaptainBucko
author_rank: Regular Contributor
timestamp: August 28, 2024, 12:27:56 am
content: I bought a Aixun T420D with the T115, T210 and T245 handles and have not looked back.
XY tilt sensor inductive sensors filled with oil, test teardown - Page 1
Forum section: electronics / general

author: oz2cpu
author_rank: Frequent Contributor
timestamp: August 22, 2024, 07:25:44 am
content: This amazing XY tilt sensor is from FSG in Germany, it was installed in a crane many years ago,I got this one from the last hamradio fleamarked,the sensors are inductive filled with vibration dampen oli,the inductive system runs at 12kHz time pulse difference is converted to 4-20mA outputs using two TLC27M4 opamps,it is super accurate and stable and still works after 30 years !!this reveal top quality product, but ok it is not a cheap toy but high end pro.Price in 1994 was 675 Euro, Price in 2024 is 1240 Euro.Huge thanks to all my German friends for the help with documentation.https://youtu.be/rcgyKKUy4YM
Hall sensor ID? - Page 1
Forum section: electronics / general

author: canadmin
author_rank: Newbie
timestamp: August 23, 2024, 08:12:52 pm
content: Does anyone have a part number or anything that could help me identify the hall sensor in my BPM Imports R750 bafang Ebike 500W 48V front hub motor? BPM imports can't help. Amazon, etc comes up with a lot of sensors but I can't be sure of the right one.

author: thm_w
author_rank: Super Contributor
timestamp: August 23, 2024, 11:51:38 pm
content: Look for markings on the sensor.Measure voltages in, out.There are probably quite a few that would work.https://www.aliexpress.com/w/wholesale-bafang-hall-sensor.html
Hakko FX-888D not turning on - Page 1
Forum section: electronics / general

author: NightSilence
author_rank: Newbie
timestamp: August 23, 2024, 01:28:40 pm
content: Hey,Apologies if this has been asked or this is ln't the right place to aks.I bought hakko 6/7 years ago but never used if except maybe 4 or 5 times, and then packed it. Today I took it out to make use of it. Plugged it in and it's not running on. No beep, nothing.Is there anything I can do further to troubleshoot it?

author: thm_w
author_rank: Super Contributor
timestamp: August 23, 2024, 11:48:54 pm
content: Here or Repair section is fine.If you search you'll find some previous threads:https://www.eevblog.com/forum/beginners/hakko-fx-888-stopped-working/https://www.eevblog.com/forum/reviews/year-and-half-old-hakko-fx888d-not-working/https://www.reddit.com/r/electronics/comments/kx4kua/my_first_soldering_project_soldering_a_fuse/
self-indicating switch - Page 1
Forum section: electronics / general

author: artag
author_rank: Super Contributor
timestamp: August 22, 2024, 08:31:10 pm
content: There used to be a pushbutton switch design which indicated on/off state with a mechanically-flipped fluorescent dot. This showed the state of the switch without consuming power, or in the absence of power.I've been trying to find one, but either I can't think of the search term or they've disappeared from the earth.Does anybody know where I might find one, or what they're called ?

author: Kim Christensen
author_rank: Super Contributor
timestamp: August 22, 2024, 10:41:59 pm
content: I know what you mean: My old 2465 Tek scope has a power button like that. They're probably not made anymore due to the mechanical complexity which makes them physically larger and more expensive.Perhaps you could use a more standard bat handle toggle switch?

author: ledtester
author_rank: Super Contributor
timestamp: August 22, 2024, 11:07:38 pm
content: Maybe something like this:https://www.amazon.com/35-490-Pushbutton-Push-off-Mechanical-Indicator/dp/B01C3E9DBCSearching for "mechanical indicator" also yielded these:https://www.ckswitches.com/media/1402/fpush.pdfhttps://www.digikey.com/en/products/filter/pushbutton-switches/199?s=N4IgjCBcoLQdIDGUBmBDANgZwKYBoQB7KAbXAAYAOEAXQIAcAXKEEAXzYICZSQAvdLTZA

author: artag
author_rank: Super Contributor
timestamp: August 23, 2024, 10:46:10 am
content: Thanks, both - that's great. I knew I'd seen them on some equipment and it was probably that tek scope.The amazon link won't ship to me but the search term may help - I was looking for ''self indicating'.

author: MarkL
author_rank: Unknown
timestamp: August 23, 2024, 02:24:16 pm
content: The C&K series F switches (as posted by ledtester) are indeed what's used on the Tek 24xx scopes. I had to replace an indicating cap recently and ordered it from Mouser.If you want exactly the same, they use the "yellow" indicator cap, part number F08010106.
Data I/O 29B Programmers - Page 1
Forum section: electronics / general

author: KG7AMV
author_rank: Frequent Contributor
timestamp: July 22, 2024, 06:52:46 pm
content: I been looking for a couple years for a Decent Data I/O 29B last week luck would have it I found 2 of them in really nice condition with Unipack 2B's.I have a few adapters on the way but no housings, Has anyone made a 3d printable housing for the adapters that go in the 2B? I tried the usual sources and including groups.iohttps://groups.io/g/DataioEPROM/topicsBut no luck.Blog Post:https://www.stevenrhine.com/?p=134439Compared to a Modern Xeltek Superpro 6100N and 7500

author: KG7AMV
author_rank: Frequent Contributor
timestamp: August 22, 2024, 01:52:16 pm
content: The Data I/O groupshttps://groups.io/g/DataioEPROMthe user Mike DiBattista created a modern windows control software called PL2260+ for these 40 year old programmers a lot of support for other data I/O Programmers as well.Connects and Was Able to Read and verify a Couple Random TMS2716'sIf there is anyone good at 3D Modeling and has a Unipack 2B could use a 3D Model of the Removable Adapter housing.
A GNSS antenna splitter from BG7TBL - Page 1
Forum section: electronics / general

author: Wim13
author_rank: Frequent Contributor
timestamp: September 18, 2024, 01:50:08 pm
content: I received the GNSS antenna splitter from BG&TBL.It is a passive splitter with DC block by two diodes see picture, so it can supply voltage by both GPS's to the antenna.Very nice you don't have to worry about which port blocks DC.The highest voltage is leading, if you have one GPS with 3.3 V output and one GPS with 5 V output.The splitter is a mini circuits, SP-2G+I did not notice any significant signal loss, looks even better.

author: Wim13
author_rank: Frequent Contributor
timestamp: September 20, 2024, 08:57:11 am
content: Made some measuments on the SA, from the BG7TBL splitter,1, port 2 not connected, open2, port 2 closed 50 Ohm3, center 50 Ohm, port 1 <> port 2
UNI-T UT81A+/UT81C+ 3 in 1 Handheld Oscilloscope/Multimeter. ANY GOOD? - Page 1
Forum section: electronics / general

author: jundar
author_rank: Contributor
timestamp: August 25, 2024, 03:39:26 pm
content: Probably it is a new product and it looks like a decent handheld 3-in-1 device - 2Ch, 50MHz, 250MSa/sec, 10mV/div-10V/div vertical sensitivity... etc.https://www.aliexpress.us/item/3256807081159350.htmlBut I did not able to find reviews on YouTube. And even UNI-T official website has no any information about it.Something wrong? Canceled product? Has someone experience with it?

author: Microcheap
author_rank: Frequent Contributor
timestamp: August 25, 2024, 04:55:19 pm
content: That Uni-t looks like a re-badge Owon HDS200:https://www.owon.com.hk/products_owon_hds200_series_digital_oscilloscopeThere is a thread about the HDS200 here:https://www.eevblog.com/forum/testgear/owon-hds-200-handheld-oscilloscope-w-builtin-dmmawg
How should I connect ESD mat for PC - Page 1
Forum section: electronics / general

author: catcream
author_rank: Newbie
timestamp: August 10, 2024, 04:53:40 pm
content: Hi! I have an ESD mat and I want to take apart my PC that has rubber feet. My ESD mat has 2 connection studs: I connect my wrist strap to one, and a grounding wire to an earth gnd outlet of my soldering station (checked continuity to waterpipe with station off) to the other.How should I get the same potential on the PC now? Can I just use a crocodile-crocodile cable and clamp it to somewhere on the mat and a screw on my PC?

author: tooki
author_rank: Super Contributor
timestamp: August 10, 2024, 05:10:19 pm
content: You could do that, but it’s not really necessary. The wrist strap will dissipate any residual static charge through your hands once you touch the computer.

author: catcream
author_rank: Newbie
timestamp: August 10, 2024, 06:32:22 pm
content: Okay, and as long as it just sits on the ESD mat, even with insulated feet, it should not build up a charge relative to earth (me and mat)? Thanks
Hakko FX 805 input voltage - Page 1
Forum section: electronics / general

author: bergenhut
author_rank: Contributor
timestamp: August 04, 2024, 11:26:15 am
content: Hi,I'm looking at purchasing a Hakko FX-805 high power soldering station. Im trying to find out if it has the universal voltage input, or does it have to be ordered with the correct voltage input such as 120v or 240v. Hakko website doesn't give a voltage input range, or models corresponding to voltage input or country. Distributors can't help me either, as they don't keep this model in stock to have a look at it for me. I would like it to be universal for the different locations that this unit will be usedThanksJames

author: thm_w
author_rank: Super Contributor
timestamp: August 06, 2024, 09:22:56 pm
content: Call or email Hakko and they will probably get back quickly.https://www.hakko.com/english/support/doc/result.php?s_cat=1&s_keyword=FX-805#resultAncNothing in the manual, though this page says 120VAC:https://hakkousa.com/amfile/file/download/file/3824/product/12839/And on the back of the unit says 120V:https://www.batterfly.com/shop/en/hakko-af5000Though the weight seems a bit low for 400W, 3.9kg. FM203 is 2.7kg 140W.

author: bergenhut
author_rank: Contributor
timestamp: August 07, 2024, 08:14:41 am
content: Hi,Thanks for the reply. 400watt at 30volt = 13.3 amp = big heavey transformer. With its specified weight as you say at 3.9kg, I suspect it has a switch mode power supply. This is one of the reasons I was looking at this, thinking that if it has a switchmode power supply, the chances are that it would be universal mains voltage input, which would suit my needs.I thought I'd post here to find out before trying Hakko, as it is more likely I would get a straight answer from someone that knows or even has one.I'll try Hakko directly and see how I go.ThanksJames
JBC JTSE-1UA Tips Issue - Page 1
Forum section: electronics / general

author: ZenHombre
author_rank: Newbie
timestamp: August 02, 2024, 04:31:34 pm
content: We're having trouble with a JBC JTSE-1UA unit that we just purchased. The tips that came with the unit fall off when pointed downward and won't stay on unless bent a bit. Is this a common issue? Is there a better source for tips for this unit? Any help would be greatly appreciated.

author: thm_w
author_rank: Super Contributor
timestamp: August 02, 2024, 09:55:47 pm
content: Scroll down to the bottom here:https://device.report/manual/9613640There is a tab to bend on them.Probably just not a great design.

author: ZenHombre
author_rank: Newbie
timestamp: August 05, 2024, 01:04:40 pm
content: Thanks for the information. However, the ones that came with ours didn't have the tabs. Now that I see this option I'll make sure to order those going forward. Thank you again.
Flash Programmer with secure remote capabilities  - Page 1
Forum section: electronics / general

author: rbe
author_rank: Contributor
timestamp: July 30, 2024, 01:28:58 pm
content: I am currently searching for a flash gang programmer online, but haven't found any that would meet my needs.My objective is to establish a reliable remote flashing system for our client, it should allow us to limit the number of flashers for a specific binary image and keep track of it. The flash programmer (used by our client) must be capable of flashing at least four targets simultaneously. The only solution I've found so far is the Segger Flasher Securehttps://www.segger.com/products/production/flasher/models/flasher-secure/, which costs $2000 each. However, to make it work, we would need the Flasher Secure Server, which costs another $20,000 (way too expenisve).I am seeking insights from industry professionals who might be using alternative, more affordable solutions that meet these requirements. Any advice would be greatly appreciated.P.S. There are some Chinese solutions out there that would do this such as Amo GangProgrammer K216, but I do not trust it since it uses Chinese servers, etc. The image of the device is attached below.
Quick 3202 vs. Xytronic LF-3200 - Page 1
Forum section: electronics / general

author: Everbrave
author_rank: Regular Contributor
timestamp: July 20, 2024, 09:34:48 pm
content: I recently bought the Quick 3202 soldering station and I’m happy with its heating/soldering performance but …1) I find the built-in fan rather laud and of annoying sound pitch2) I noticed EMI of around 10mVpp of the HF leaking into my oscilloscope which is around 80cm away from the soldering stationI guess using the switched power supply is to be blamed for 1), 2) or both (?).Quick 3202 looks like another generation of Xytronic LF-3200 which, however, relies on a linear transformer.So, I wonder whether owners of Xytronic LF-3200 and/or Quick 3202 can share their experience.Thanks

author: unseenninja
author_rank: Regular Contributor
timestamp: July 21, 2024, 04:04:25 pm
content: As I said in the other thread where you asked this question, mine has no fan, is silent as far as I can hear and still works perfectly. I'm very happy with it and it's great for everything from small fine work with SMDs and also for high wattage stuff like soldering fat copper wires when needed.I've never seen any EMI effects on any of my other gear when it is turned on, and that includes an 8.5 digit multimeter plugged in to the same mains outlet.

author: Everbrave
author_rank: Regular Contributor
timestamp: July 21, 2024, 10:19:58 pm
content: Quote from: unseenninja on July 21, 2024, 04:04:25 pmThanks a lot for your Feedback and sorry for missing your reply on the other thread

author: Everbrave
author_rank: Regular Contributor
timestamp: July 30, 2024, 09:24:14 am
content: Quote from: Everbrave on July 21, 2024, 10:19:58 pm
JBC DR560-A desoldering tool heating element - Page 1
Forum section: electronics / general

author: gaminn
author_rank: Frequent Contributor
timestamp: July 18, 2024, 06:38:27 am
content: Hi,after 27 hours operating time and 201 hours sleep time the heating element of JBC DR560-A doesn't work anymore (open-circuit). Most time I set 400°C operating temperature and 260°C sleep temperature.Anyone with DR560-A: how long your heating element lasts?Not only DR560-A is quite expensive, it also seems that operating it is expensive, as the heating element is around 130 EUR.I noticed e.g. Hakko FR301-03/P heating elements costs only half of the JBC's one. Is there anyone with this desoldering tool to compare the lifetime of the heating elements?

author: thm_w
author_rank: Super Contributor
timestamp: July 18, 2024, 09:01:00 pm
content: See if they'll take it back under warranty.The heating element is just a normal JBC cartridge, so I would expect it to last a while, rarely reported here that the heaters fail.Though the thermal mass is a bit higher so the heater could be stressed more.http://adgd.ru/2020/02/16/jbc-dr560-a/

author: gaminn
author_rank: Frequent Contributor
timestamp: July 19, 2024, 07:57:55 pm
content: The heating element was almost 10 years old (but only with 27 hours operating time). I sent all the info to my distributor, they contacted JBC. We will see what the conclusion will be, if any. Meanwhile I ordered 2 heating elements and other consumables for DR560. For that price normal people buy complete soldering stations!

author: KG7AMV
author_rank: Frequent Contributor
timestamp: July 22, 2024, 06:56:04 pm
content: Quote from: gaminn on July 19, 2024, 07:57:55 pmYea, that's the issue with JBC expensive, but should have lasted more then 27 hours.

author: Arts
author_rank: Regular Contributor
timestamp: July 25, 2024, 09:21:42 pm
content: I have a DS 5300 desoldering station that uses the DR 5600 iron. This iron was the forerunner to your DR 560.I have been using this machine daily for 30+ years, and have never changed the heating element. In fact, I am still using the original 5600-003 tip that came with the unit for most of the work I do. I cannot imagine a JBC heater failing at such low hours, regardless of age.
Run Weller W61 for 110V on 220V? - Page 1
Forum section: electronics / general

author: donescamillo
author_rank: Contributor
timestamp: July 22, 2024, 08:56:04 am
content: Hi,Can I run Weller W61 bought from UK (and specified for 110V) on 220V?If no, what conversions do I need to do in order to run it?Thank you

author: mahi
author_rank: Regular Contributor
timestamp: July 22, 2024, 01:29:05 pm
content: Either you need a 220V to 110V step down transformer, or you must replace the heating element with the 230V version (part 5 61 206 99, still available through distributors like Farnell).

author: donescamillo
author_rank: Contributor
timestamp: July 22, 2024, 02:02:00 pm
content: Thank you for your reply.Yes, the heating element is available and I may go this way.Just out of curiosity, will fitting a rectifying diode work?

author: Ian.M
author_rank: Super Contributor
timestamp: July 22, 2024, 03:17:07 pm
content: No. A diode cuts half the waveform so 50% power, but a US 110V element is one quarter of the (hot) resistance of an equivalent rest of world 220V element (for double the current at half the voltage to get the same power), and at 220V would be overrun by a factor of four, so even with the diode would still be overrun by a factor of two. Also that would put DC across the magnastat switch which is likely to shorten its life
Reverse-engineer Bubendorff CLEP21 remote controller - Page 1
Forum section: electronics / general

author: markogulin
author_rank: Newbie
timestamp: July 14, 2024, 07:27:55 pm
content: I have a Bubendorff shutter system, whereas each shutter has its own remote controller. I am trying to clone the remote controllers, to build a single system for shutter control. There are three open questions to break the protocol, I'd appreciate any help you can provide.Please find detailed description of the protocol and my findings here:https://www.reddit.com/r/embedded/comments/1e31vpg/reverseengineer_bubendorff_clep21_remote/https://reverseengineering.stackexchange.com/questions/33075/reverse-engineer-bubendorff-clep21-remote-controllerP.S. Please let me know if I should "copy-paste" the entire post here, instead of forwarding the description to Reddit and Stack Exchange.Thanks!

author: Emeliaee3
author_rank: Newbie
timestamp: July 20, 2024, 03:08:05 am
content: Welcome! For your specific needs, I'd recommend looking into digital microscopes with a flexible arm mount. You'll want one that offers both USB and HDMI/DisplayPort output for versatility with your current and future displays. Look for models with adjustable magnification and focus capabilities to ensure you can achieve the distance and clarity you need.Given your resolution plans, aiming for a 4K camera would be ideal to fully utilize your future 4K display. Your budget of around $500/€ should be sufficient for finding a quality microscope with these features, though flexibility in price can help you explore different options. I am using it with BaoBao Technology Industrial touchscreen monitorFeel free to ask more questions or specify any additional requirements you have. Happy hunting for your new microscope!
NIDA Corporation trainer Model 205 - Page 1
Forum section: electronics / general

author: whipaway
author_rank: Contributor
timestamp: July 16, 2024, 10:09:11 pm
content: Hello all,I am looking for any documentation for a NIDA Model 205 Transceiver trainer which has the following boards:PC205-1PC205-2 CBPC205-3 CBPC205-4 CBPC205-5 CBPC205-6 CBNIDA says that they do not have any documentation for this unit anymore.
Yihua 716C Tweezers (clone of JBC C120) $270 - Page 1
Forum section: electronics / general

author: thm_w
author_rank: Super Contributor
timestamp: July 02, 2024, 11:09:22 pm
content: Yihua has gone full clone mode, they have a variety of JBC type stations: 982, 982D 245, 982-III 115. But the ones relevant here:982D-I$270:- 90W- Built in thermocouple for calibrationor982D-III$400:- C210 + C120 tweezer- 210W totalDownsides: proprietary circular connector, also the station seems to be completely dedicated for tweezer use. Its not clear if it can actually detect handpiece variations, maybe the C210/C245 one can though.Still way too expensive for budget tweezers, but at least it means some C120 clone tips could become more common:https://www.aliexpress.com/item/1005006762434960.htmlI assume the tweezer handpiece also fits C210 tips as the dimensions are the same? Maybe someone can offer a handle and just run the tips in parallel, as handskit did with T12.

author: Arcturus
author_rank: Contributor
timestamp: July 14, 2024, 04:50:58 pm
content: The 716C tweezer is available separately and fits both C120 and C210. I'd like to see a JBC compatible open source project support tweezer attachments like it. Ideally, it would be a station with memory presets just for the tweezers and dual independent calibrated channels that sense and drive each cartridge of the tweezer separately. That should take care of any thermocouple issues while running cartridges in parallel during unbalanced thermal load. I could make an adapter for my Aifen A902 dual station that does the same thing, but constantly swapping plugs between iron handles and tweezers isn't the most efficient workflow.
Navman Fish 4200 - Page 1
Forum section: electronics / general

author: peo007
author_rank: Contributor
timestamp: July 10, 2024, 06:29:27 am
content: Have a Navman Fish 4200, when starting it the menu is in English, farenheit, ft, mph. so you have to change the values ​​to Swedish, celsius, meters, knots, and save.When you then turn it off and turn it on the next time, it's back to square one.Have opened it and checked for backup battery, none.Is it supposed to be like that or have I missed something?
An interesting part - Page 1
Forum section: electronics / general

author: Jonathon_Doran
author_rank: Regular Contributor
timestamp: July 04, 2024, 12:27:05 am
content: This probably happens all of the time, but I thought this was funny.Recently I was looking at small OLED displays and came across the 'World's Smallest 0.32" OLED 60x32 Display Screen'https://www.tindie.com/products/questwise-ventures/worlds-smallest-032-oled-60x32-display-screen/Call me a nitpicker, but I'm pretty sure that all 0.32" displays are the same size.OK, That's probably why I never get invited to the fun parties.But there's more! Better hurry, because there are only six left at $16.50 each. Of course I want to see the datasheet:https://d3s5r33r268y59.cloudfront.net/datasheets/33662/2024-02-10-02-08-26/TOX032FSWAG02_0.32-Inch-OLED-60x32-White-I2C-SSD1315.pdfMaybe I'll use one in a project some day. I wonder if JLCPCB has one (otherwise I have to buy a reel of them).Well, no. That part number isn't known. But they do have an "Organic Light Emitting Diode Display Screen". A poor substitute?Especially at $1.24 each. In all fairness they have no stock, but LCSC has 143 of them for a slightly lower price ($1.28). Now I'm sure that we are talking apples and oranges. But let's see...https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2311032115_Newvisio-X032-6032TSWAG02-H14_C18723006.pdfSpoiler: Pretty much the same datasheets (word for word) with two different manufacturers.

author: thm_w
author_rank: Super Contributor
timestamp: July 04, 2024, 08:58:56 pm
content: Interesting, here is the LCSC link:https://www.lcsc.com/product-detail/Organic-Light-Emitting-Diode-Display-Screen_span-style-background-color-ff0-Newvisio-span-X032-6032TSWAG02-H14_C18723006.htmlThat manufacturer has quite a few options.I wouldn't think too much about the cost on tindie, its just some person listing it for whatever they feel like.

author: cowana
author_rank: Frequent Contributor
timestamp: July 10, 2024, 11:58:40 am
content: Looks like the Tindie seller has designed a base PCB (providing the passives for the charge pump and exposing castellated pads for the I2C). I think most people would be happy to have those parts themselves on their custom board - but I guess that partially explains the markup!
What are some things that I can use the hackrf for? - Page 1
Forum section: electronics / general

author: bimaga4123
author_rank: Newbie
timestamp: July 05, 2024, 09:10:04 pm
content: I recently aquired a portapack with a quite a nice design I would say. To be exact this onehttps://www.sdrstore.eu/software-defined-radio/instruments/hackrf/assembled-hackrf-portapack-h2-hackrf-one-1mhz-to-6ghz-sdr-with-mayhem-1-8-0-en/What are some cool things to do with it? Right now the best I did was play some sounds on a frequency that some radio channels are but it only works locally about 5m.
JBC - Precision Desoldering Station Convert to Soldering Station - Page 1
Forum section: electronics / general

author: 2X
author_rank: Frequent Contributor
timestamp: July 05, 2024, 08:23:25 pm
content: Hi,I have the below desoldering station. Do you know if I change the “tool holder”, and the firmware, I could convert it in a soldering station (like the CDB Station Soldering) and attached on it the “T245 Handle General Purpose” instead of the desoldering iron “DS360”? Has anyone tried this?CS Station Precision Desolderinghttps://www.jbctools.com/cs-precision-desoldering-station-product-7.htmlCDB Station Solderinghttps://www.jbctools.com/cdb-soldering-station-product-1605.htmlP.S. The local dealer that I bought it told me "NO" but I am not sure for his answer.

author: tooki
author_rank: Super Contributor
timestamp: July 05, 2024, 09:00:35 pm
content: Why would youwantto do this?!? You could sell it at a huge loss and still make enough money back to buy a brand CDB soldering station.

author: 2X
author_rank: Frequent Contributor
timestamp: July 05, 2024, 09:14:36 pm
content: Quote from: tooki on July 05, 2024, 09:00:35 pmBecause I want to but the DDE Control Unit and attach on it 2 tools; the new DT530 and my old DS360 desoldering iron. There is no reason to sell it in a lower price that I bought it and then to buy again the DS360 which is not cheap at all. The only thing that I will sell is the suction pump.
BGA Solder Balls - Brands - Page 1
Forum section: electronics / general

author: 2X
author_rank: Frequent Contributor
timestamp: June 13, 2024, 09:29:12 am
content: Hello,I am searching on the internet to buy BGA Solder Balls but I found mostly taiwan and chinese brands. Do you know if there is any trusted brand like Stannol or Kester (I would like to buy balls with eutectic solder Sn63pb37).

author: 2X
author_rank: Frequent Contributor
timestamp: June 23, 2024, 08:51:43 pm
content: After searching and trial I found the below decent chinise brands and the chip quick where for me is the best.One major thing I don't like with chinese brands in solder balls is that I buy now a brand where it is decent and I learn to work with it and tomorrow this brand maybe will not exist and also the specs of the solder balls is not something non questionable.Brand: CHIPQUIK - Very GoodSn63/Pb37 Solder Spheres for BGAshttps://www.chipquik.com/datasheets/SMD2150-25000.pdf"Brand": Qwin - Good250K Solder Balls 0.25mm 0.3mm 0.35mm 0.4mm 0.45mm 0.5mm 0.6mm 0.76mm Leaded Soldering Balls Set For BGA Reballing Stencilshttps://vi.aliexpress.com/item/1005006081989767.html?gatewayAdapt=glo2vnm"Brand": PMTC - Good250K Welding Balls Tin Beads PMTC Particles 0.2 0.3 0.4 0.45 0.5 0.6 0.76mm For BGA Weld Reworking Reballing Free Shippinghttps://vi.aliexpress.com/item/1005006081989767.html?gatewayAdapt=glo2vnm"Brand": BEST - DecentBEST 505 Size 0.2mm-0.65mm Bga Solder Soldering Ball For Tablet iPad iPhone Balls For Micro Welding Mobile Phone Repair Toolshttps://vi.aliexpress.com/item/1005001489622094.html?gatewayAdapt=glo2vnm

author: pope
author_rank: Frequent Contributor
timestamp: June 25, 2024, 09:07:45 pm
content: Quote from: 2X on June 23, 2024, 08:51:43 pmThank you for sharing your findings!
BGA Reballing Station For FPGA Processors - Page 1
Forum section: electronics / general

author: 2X
author_rank: Frequent Contributor
timestamp: June 22, 2024, 07:55:01 pm
content: Hello,I would like to buy a BGA Reballing Station for desoldering and resoldering FPGA chips like this below on the image. Do you know to suggest me a trusted reballing station or what specs I have to look?I have never use a reballing station.

author: PeterG
author_rank: Frequent Contributor
timestamp: June 23, 2024, 12:34:58 am
content: For reballing i use this jig.https://www.aliexpress.com/item/32847165892.htmlFor PGA soldering/desoldering i use this preheater.https://www.aliexpress.com/item/1005006424862637.htmlFor larger PCBs or ICs you may need to look at larger tools but these work for most of the work i do.

author: 2X
author_rank: Frequent Contributor
timestamp: June 23, 2024, 11:48:38 am
content: Also I found the "IR Preheating Plate T-8280 PUHUI" that have positive feedbacks but I will need an extra arm to hold the heat gun.
Wearable IMU? - Page 1
Forum section: electronics / general

author: matts
author_rank: Newbie
timestamp: June 22, 2024, 09:14:44 am
content: Hi,can someone recommend me a wearable accelerometer?- worn on the lower leg- battery lifetime > 3 days- logging rate can be very low (1xminute), only for discrimination between laying and sitting/standingThis device looks nice:https://axivity.com/product/ax3But rather expensive (200 USD including shipping)Thanks!
Hakko 808 Repair - Page 1
Forum section: electronics / general

author: rfdes
author_rank: Regular Contributor
timestamp: October 04, 2020, 06:56:40 pm
content: Hi -I acquired (free) a very nice condition Hakko 808. It looks to have been barely used. The unit worked for a few days before the heating element died. Of course new parts are hard to come by and the elements are in the $70 range. Being a typical a engineer (i.e. cheap) I want to see if there is any hope at all in attempting a repair of the heating element. I've pulled the heating element and it shows as being open directly at the ceramic. With nothing to lose, I'm wondering if anyone has any advice to giving this repair a shot.Your advice is welcome.Thanks - Jim

author: james_s
author_rank: Super Contributor
timestamp: October 04, 2020, 08:43:18 pm
content: Hard to come by? I just did a search and found them on Amazonhttps://www.amazon.com/Hakko-A1234-Replacement-Heater-80W/dp/B003090G70When I've needed parts I've bought them directly from Hakko. $55 doesn't seem too bad, when I bought my 808 it was over $200 and I think the model that replaced it costs considerably more.You can of course try to repair the original one, you've got nothing to lose, but how much is your time worth? I would just buy a new element.

author: rfdes
author_rank: Regular Contributor
timestamp: October 04, 2020, 08:50:55 pm
content: I totally understand what you are saying. However, I really don't *need* it anytime soon and I like the challenge. That's the true reason.Thanks

author: rdagger
author_rank: Contributor
timestamp: June 22, 2024, 04:22:51 am
content: My 808 heating element died, and it looks like Hakko no longer sells them. I couldn't find the part A1234 anywhere online except some guy on eBay selling them for $320 US.Did you succeed in your repair challenge?
Fujitsu M2512A Magneto Optical some photos - Page 1
Forum section: electronics / general

author: iJoseph2
author_rank: Regular Contributor
timestamp: June 19, 2024, 02:44:52 pm
content: Recently purchased a Fujitsu 230MB MO drive which looked a bit dirty inside.It came in an external SCSI case which had some signs of rust around the fan .. so thought it would be a good idea to clean it up before using it.A few dust balls inside the mechanism as well.

author: iJoseph2
author_rank: Regular Contributor
timestamp: June 19, 2024, 02:45:46 pm
content: Dust

author: iJoseph2
author_rank: Regular Contributor
timestamp: June 19, 2024, 02:46:35 pm
content: Dust

author: iJoseph2
author_rank: Regular Contributor
timestamp: June 19, 2024, 03:03:13 pm
content: Does anyone know where I can find a service manual for this drive?I searched with google as best as possible (even other drive models in case they're similar) and all I can find are user manuals.I'm trying to take off the PCB but trying to lift it up there seems to be something on the other side holding it in place - seems to be held approx somewhere in the red marked area. (yep i did remove the two screws in the middle of the board). Hoping to get better access inside to check for any more dust and clean it up.Thanks!
Metcal STSS-002E Soldering System Manual - Page 1
Forum section: electronics / general

author: zmetzing
author_rank: Contributor
timestamp: May 21, 2024, 09:40:57 pm
content: (Second try at posting this, sorry for any dupes.)Getting a copy of this manual is like getting a glimpse of Bigfoot. Thought it might be useful to others.--- Zach

author: thm_w
author_rank: Super Contributor
timestamp: May 21, 2024, 09:55:26 pm
content: I asked to move to the equipment section:https://www.eevblog.com/forum/reviews/Its not clear what they say about ground loss, is that just for the tip being unplugged or for loss of earth? I know the newer stations will detect loss of earth but I don't recall it working on the PS2E.

author: Jamieson
author_rank: Regular Contributor
timestamp: June 13, 2024, 12:22:31 pm
content: I think the PS2E will only detect if the tip is unplugged, and that requires the "enhanced" RM-3E handset or newer to work.

author: quadtech
author_rank: Regular Contributor
timestamp: June 17, 2024, 03:00:56 pm
content: Attached the PDF of the manual
BackUp Soldering System cheap china.  - Page 1
Forum section: electronics / general

author: Meter Deter
author_rank: Contributor
timestamp: June 14, 2024, 09:54:24 pm
content: hello EEVblogmy everyday driver is Hakko FX-951 been running strong for 8 years . my station is old worried something my go out soon. while im waiting for replacement parts. thats why im looking for backup station.im looking for a cheap china backup soldering station.i mainly use to solder wires to boardsdesolder 8 leg eepromsP.S . what are common parts that go out on the Hakko 951. so i could keep a look out when they go on sale?

author: tooki
author_rank: Super Contributor
timestamp: June 14, 2024, 10:09:17 pm
content: I think you’re worrying unnecessarily. Soldering stations are fundamentally extremely reliable, and the thing most likely to fail is probably the heater — and in the 951, each tip is a heater, so if one fails you just replace the tip. People routinely use soldering stations for decades. Often the limiting factor is that the manufacturer stops making tips for them!

author: Meter Deter
author_rank: Contributor
timestamp: June 15, 2024, 05:52:36 pm
content: im looking at the AIXUN T3Aim going to use original JBC cartidges.what you guys think?
Dyson V7 not working. Is it motor or battery? - Page 1
Forum section: electronics / general

author: hw_user
author_rank: Newbie
timestamp: April 04, 2024, 04:50:34 am
content: My Dyson V7 stopped working. I want to know if it is my battery or the motor is bad. I did two tests1. I pulled out the battery. I can see the trigger button and the + and - slots where the two tongues from the motor side inserted into. I inserted a piece of wire into each slot and meter the voltage. There is no output with or without the button pushed. The vacuum is plugged in all the time. I think the battery is at least somewhat charged. I should see some voltage. Do I have to insert a piece of metal similar to the tongue to see the output?2. I use a DC power supply to provide 21 volt (I think the battery is 21.6V) directly to the two tongues. But the motor is not turning. I think the trigger is on the battery side. Unless there is any hidden switch, the motor should turn.Can anyone help?

author: darkspr1te
author_rank: Frequent Contributor
timestamp: June 03, 2024, 09:58:02 am
content: this link might help, they talk about magnets in the body and battery to detect each other.https://www.eevblog.com/forum/reviews/dyson-v7-trigger-cordless-vacuum-teardown-of-battery-pack/darkspr1te

author: macboy
author_rank: Super Contributor
timestamp: June 11, 2024, 01:05:34 am
content: I powered a V6 directly, but you need a very high current supply to do this. The motor can pull tens of amps when starting.So you get any blinking if the LED on the battery? Different number of flashes indicate different errors. A common issue with these batteries is the cells become unbalanced over time since the BMS does no balancing. When it gets bad enough, the battery terminates itself and will never work again. The only fix is to install a third party firmware in the battery to unlock it. You also need to balance the cells of course. The are threads in this forum about these batteries and the replacement firmware.
aixun t12 or oss T12X handle? - Page 1
Forum section: electronics / general

author: smile
author_rank: Regular Contributor
timestamp: May 30, 2024, 11:47:18 am
content: Hello,I want to know anyone tested these T12 handles from aixun t12 or oss T12X ?The look similar but what about inside? Are they better reliable do not heat up?The KSGER handles are crap as far as reviews go, heats up, are made in low quality, just looks at non existing strain relief.

author: DavidAlfa
author_rank: Super Contributor
timestamp: June 15, 2024, 12:20:29 pm
content: The T12 seems to be all-aluminium? Then it's a no-no, very fancy but will heat up.
Smartphone screen "lifting" gadgets - Page 1
Forum section: electronics / general

author: ironcurtain
author_rank: Regular Contributor
timestamp: May 27, 2024, 10:37:35 am
content: I'm looking for a decent screen repair/disassembly gadget to use on some smartphones, mostly Samsung/Google Pixel/Apple iPhone, preferably with the ability to open/lift and lock the screen to the side (like a book). I don't do repairs but I work with smartphone internals sometimes and need reliable access to the motherboard and other bits.Got tired of using plastic tabs (guitar tabs...) and such tools.Anyone knows any alternatives or clones of the iFixit one? Any other recommendations?Examples:https://www.aliexpress.com/item/1005006176573065.htmlhttps://www.aliexpress.com/item/1005006861799289.html
Weller WRS3000 - Want to test pump control - Page 1
Forum section: electronics / general

author: Cyclotron
author_rank: Unknown
timestamp: May 25, 2024, 09:36:13 pm
content: Does anyone know the other Pin paired with pin 6 for turning on the air/vacuum?I picked up a WRS3000 base and iron reasonably, but I'm considering purchasing a desoldering setup. As I'd never used the air/vacuum side, I took the pump out and directly tested it. That works great.I understand that pin 6 is for the wand switch to turn on the pump, but I need clarification on what it should be shorted to when closed. There may be a resistor between pin 6 and its partner inside the wand when the switch is open and near zero ohm for close.

author: Cyclotron
author_rank: Unknown
timestamp: May 26, 2024, 01:03:42 am
content: If anyone wants to know, PIN 1 to PIN 6 or blue to violet serve two purposes.When an appropriate wand/handle is connected, a 44-45k ohm resistor will be across these two, signaling that the wand is 80 Watts.Upon pressing the switch, the circuit is completed, initiating the activation of the air/vacuum pump.
Anyone here tried the Aoyue 883? - Page 1
Forum section: electronics / general

author: Epictronics
author_rank: Newbie
timestamp: May 24, 2024, 07:49:13 am
content: I'm in the market for a preheater to work on vintage motherboards.The Aoyue 883 seems to be a better option than the popular Puhui T8280, but I can't find any reviews.I mostly replace caps and regular ICs, but it needs to be good enough for occasional bga replacement.What do you guys think?https://www.aoyue3d.com/en/pro/default.asp?id=31
Heat C210 at 24V - Page 1
Forum section: electronics / general

author: toribird
author_rank: Newbie
timestamp: May 19, 2024, 12:32:09 pm
content: Hello. I'm looking for a soldering station that accepts C245 and C210. Generally C245 is 24V and C210 is 12V.After that, while looking at the Chinese market, I found a soldering station that can be used by replacing the handles of C245 and C210. But C210 is also running on 24V.The seller says there is no problem, but please let me know your opinions on heating the C210 with 24V. I wonder if the tip will wear out faster?

author: SiliconWizard
author_rank: Super Contributor
timestamp: May 21, 2024, 11:10:55 am
content: As I remember, the C210 cartridges have a lower heater resistance (about 2 ohm) than the C245.At 12V, the peak power is about 72W. With 24V, that would be 4 times that: 288W.They will sure heat up very fast (they already do at 12V), but that's clearly completely out of spec. I don't know what damage it can do. I doubt this unit is capable of delivering 288W anyway, so with C210 cartridges it probably limits the current anyway and so they'll never see 24V in practice. The max rated power of this unit will tell you.

author: thm_w
author_rank: Super Contributor
timestamp: May 21, 2024, 08:33:31 pm
content: You can see in the screenshot in the upper left corner they show 85W for C245 and 32W for C210. If these values are accurate they are perfectly safe powers to use. You can measure when you plug in the station. 24V vs 12V should be a non-issue if its properly designed.C245 can handle a bit more, 120W or so. But most people should be fine with 85W.C210 can probably handle 50W+ but unsure how it affects lifespan of the tip. 32W is OK for small stuff, its close to what JBC uses anyway.

author: BrokenYugo
author_rank: Super Contributor
timestamp: May 21, 2024, 08:55:05 pm
content: I think it'd be OK if PWMed, slow on-off control would certainly be abusive.

author: thm_w
author_rank: Super Contributor
timestamp: May 21, 2024, 09:02:23 pm
content: Quote from: BrokenYugo on May 21, 2024, 08:55:05 pmYeah, to clarify, properly designed = PWM'ed at greater than 200Hz or so.