Some photos from a PeakTech 2170 teardown - Page 1
Forum section: electronics / general

author: mimmus78
author_rank: Unknown
timestamp: February 03, 2013, 04:02:14 pm
content: Here some photos of my PeakTech 2170 ... don't seems too bad.Just some plastic removed ...Battery holderIt seems that from the soft plastic some buttons where cutoff ... maybe they reused the mouldInternal - the black plastic and display was not removed because there is nothing underneathTop corner pcb ...Center of pcb ...Bottom of the pcb ...Complete pcb ...Banana plug receiver ...That's all for now.Don't mind if this is my first post from Italy O0ByeDomenico

author: grenert
author_rank: Frequent Contributor
timestamp: February 03, 2013, 06:15:41 pm
content: Thanks for sharing the photos, great first post!It looks pretty standard for the meters based on that chipset (Cyrustek ES51919-51920). Good to see they use 4-wire measurement.The cheapest to get one of the LCR meters with that chipset is the Mastech that is being sold by one of the members here for $170, but it has some problems related to external power supply. What did this cost you?How do you like this meter? Any problems running off external power?

author: mimmus78
author_rank: Unknown
timestamp: February 03, 2013, 09:49:54 pm
content: Yes it comes with kelvin clips :-)It seems not to be effected by the external power supply problem. I measured some capacitor up to 4700 and some resistor up to 50k and it drift max one count when switching from battery to external power supply.It seems it will support also power from usb, but i just discovered that the connector has some super glue inside and usb connector does not feet. I will try to clean it next days.I don't understand why they sell it with only one short lead ... initially I was thinking it was a mistake, but also on the official site the photo shows only one lead.I bought this over mastech just because is smaller and because it was sort of ".de" checked ...Usb seems not to be optoisolated, so for someone this can be a problem.

author: Bored@Work
author_rank: Super Contributor
timestamp: February 03, 2013, 10:17:07 pm
content: It is a rebranded Shanghai Yihua V&A VA520B.

author: rsjsouza
author_rank: Super Contributor
timestamp: February 04, 2013, 04:14:58 am
content: Thanks for the very detailed pictures! It seems the quality is very good...

author: mimmus78
author_rank: Unknown
timestamp: February 04, 2013, 08:51:22 am
content: Price was 210 euro (tax included) ... a little bit more than VA520B ...

author: 1937
author_rank: Contributor
timestamp: September 25, 2014, 08:27:49 pm
content: Hi. I've got Cyrustek based LCR meter, but without usb-connection support.I would like to upgrade it.Maybe someone can help me with some components: R46, R49, C46, C47, C51, FB and the IC chip on the right of Cyrustek ES519190. Marking or nominal values...I would be very grateful.

author: gonzoid
author_rank: Contributor
timestamp: January 12, 2015, 06:02:45 pm
content: Quote from: 1937 on September 25, 2014, 08:27:49 pmDid you come up with something since your last post?Considering the IC marking seen on photos (???2303HX), that could well be an older revision of Prolific PL-2303HX(before Rev. D):http://www.getchip.net/wp-content/uploads/ds_pl2303HX_v15F.pdfSince they are no longer sourced nowadays, you can probably scavenge one if you buy a cheap PL-2303 based USB cable on eBay, AliExpress, etc.Alternatively you could try to use a newer Rev. D chip, but there are a few differences between them (most notably: an external crystal is no longer needed).A comparison of the revisions is available here:http://prolificusa.com/files/PL-2303HXD%20Migration%20Guide_v1.6.pdfAccording to this application notehttp://prolificusa.com/files/lg_PL2303_v1.0.pdfand schematichttp://prolificusa.com/files/SCH_PL2303HXA_v1.0.pdf:C48, C49:QuoteC46, C47, C51:QuoteFB:A ferrite bead with reference FBM0805PT800S is used, probably something close tohttp://www.venkel.com/part/FBM0805-800PMore documentation about the PL-2303 can be found here:http://prolificusa.com/portfolio/pl2303hx-rev-d-usb-to-serial-bridge-controller/

author: 1937
author_rank: Contributor
timestamp: January 17, 2015, 11:09:00 am
content: No. I did not expect to find that information.Great thanks for the detailed presentation of the material.When I have some free time, I will try assemble this.

author: 1937
author_rank: Contributor
timestamp: January 21, 2015, 01:52:20 am
content: TY! All components have are found exceptFBOn sale, I was able to find only FBMH1608HM601-T.FERRITE BEAD, 0.17OHM, 700mA, 0603Whether it can be used as a Ferrite Bead?R46, R49Also it would be great to know more about R46, R49... I can't see their designations in the photo.

author: gonzoid
author_rank: Contributor
timestamp: January 21, 2015, 03:12:38 am
content: I don't own this LCR-meter myself, so I can't tell you more about it...Looking closely at R46 on pictures, it looks like itmaybe could eventuallybe marked with 101 or 181.The ferrite bead doesn't have to be perfectly as in the Prolific schematics, its purpose is to filter out the EMI from and to the USB line. Seehttp://electronics.stackexchange.com/questions/53391/ferrite-bead-in-usbTry to find something like that:not to small, something that fit into the pads (0805, maybe more?)rated current of 200mA~500mAimpedance (@ 100 MHz) of 30~120 OhmFor the same purpose,Arduino LeonardousesMH2029-300YandArduino Mega 2560embeds a part of theBLM21 family.You should send a PM to the OP of this thread, maybe he could help you?

author: mimmus78
author_rank: Unknown
timestamp: January 21, 2015, 07:33:34 pm
content: SoR46 is 100 OhmR49 is 200K OhmChip is PL-2303HX so every other component you already found should work.Anyway if you want one that already has USB you can buy on my store (sorry just a little AD).

author: mimmus78
author_rank: Unknown
timestamp: January 21, 2015, 07:41:58 pm
content: Anyone has tested sigrok as software? I will do some a software review (in Italian) next week for this meter ... let see who win.

author: gonzoid
author_rank: Contributor
timestamp: January 22, 2015, 03:26:41 am
content: Quote from: mimmus78 on January 21, 2015, 07:41:58 pmGreat! Can't wait to see it!I'm very interested in the addition of the Cyrustek ES51919/ES51920 based LCR-meters in sigrok.

author: 1937
author_rank: Contributor
timestamp: January 22, 2015, 04:29:34 am
content: Thanks!Parts ordered from the store.I'll be waiting for the arrival.

author: mimmus78
author_rank: Unknown
timestamp: January 22, 2015, 10:26:22 am
content: Well I tested the "software" and apart from datalogging and some chart it does not offer much. I can't even found a way to specify the COM port.I think it's worth for any serious application to try sigrok.Does DE-5000 software offer something more?

author: 1937
author_rank: Contributor
timestamp: January 23, 2015, 07:54:28 pm
content: Some screenshots fromAktakom.ru:Device:

author: mimmus78
author_rank: Unknown
timestamp: January 24, 2015, 08:45:26 pm
content: @1937may you check if there is serial data at pin 1 or 5 of the PL-2303 ... maybe is more convenient to drop in one of this CP2102 board you can found on aliexpress. PL-2303 REV.A is not compatible with window 8.1.Don't know if you can put rev.d of this PL-2303 ... if you remove OSC circuit it may work ...

author: mcinque
author_rank: Unknown
timestamp: January 24, 2015, 09:44:23 pm
content: Quote from: Bored@Work on February 03, 2013, 10:17:07 pmLike ALL instruments from PeakTech. And they - usually - ask even more than the originalPeakTech

author: mimmus78
author_rank: Unknown
timestamp: January 25, 2015, 10:02:55 pm
content: Asking more than original is normal ... you have CE papier work to do and than you have warranty and support, manual translation, ecc.

author: mcinque
author_rank: Unknown
timestamp: January 26, 2015, 04:35:50 pm
content: Quote from: mimmus78 on January 25, 2015, 10:02:55 pmI don't think so. An example?OriginalManson HCS-3400-USB = € 278,00(228,00 + 22% VAT) with CE declaration and italian translation manual (as required by CE laws, otherwise you cannot sell it in EU)RebrandedPeaktech 1565 = € 329,00(270,00 + 22% VAT) with the same papiers and manuals.When I asked PeakTech why I should buy their brand instead of Manson, and if there is any difference between the two brands other than the front panel graphics (if they've requested to use better components, i.e. like NOT Capxon electrolytics) they were offended and stop replying me.Is this an acceptable behavior of a company that when and if needed, will support his customers? Hmmm....no.I repeat: PeakTech

author: 1937
author_rank: Contributor
timestamp: January 26, 2015, 09:11:49 pm
content: So...

author: mimmus78
author_rank: Unknown
timestamp: January 29, 2015, 04:48:37 pm
content: @mcinquedon't know but maybe this is because rce.it buy it from peaktech so there are two (actually three) companies that have to make profit ...

author: mimmus78
author_rank: Unknown
timestamp: January 29, 2015, 04:52:56 pm
content: @1937sorry I'm missing sense of your post: you tested PL-2303HXD (last revision) of this chip?

author: 1937
author_rank: Contributor
timestamp: January 30, 2015, 10:04:43 pm
content: Quote from: mimmus78 on January 29, 2015, 04:52:56 pmIt was gathered my information.Components not yet arrived from store. I ordered only the chip rev.A (as it is the cheapest).Perhapsmy postwill be useful for those who want to add support for Windows 8/8.1.I am only interested in support for Windows XP or 7.I think the chip rev.D should work if remove C48, C49 and XT3.

author: mimmus78
author_rank: Unknown
timestamp: February 02, 2015, 12:24:16 am
content: Just ordered one of this pinkhttp://www.ebay.it/itm/261553548649... I will let you know if it will arrive.

author: mimmus78
author_rank: Unknown
timestamp: March 20, 2015, 10:00:52 pm
content: Hi guys,so this USB adapter with the PL-2303HXD finally materialized from Chiana on mydesktop. I've transplanted the chip from this crap adapter into the VA520B andthe LCR meter regained full compatibility with windows 8.1.I removed the oscillator just because it's not required anymore in new chip.Hope it can last for years and years now.

author: gonzoid
author_rank: Contributor
timestamp: March 20, 2015, 11:26:38 pm
content: Quote from: mimmus78 on March 20, 2015, 10:00:52 pmThat's nice to hear!Quote from: mimmus78 on January 22, 2015, 10:26:22 amThis article by Kiriakos describes it quite well:http://www.ittsb.eu/de-5000.html. See section7) Software PC connectivity & Over all experienceand picture at the bottom of the page.Most notably, there are a few nice features:auto-pause data logging when no component is present,pass/fail mode,all of the secondary parameters are dispayed concurrently,impedance (Z) is displayed, whereas it isn't on the meter.Quote from: mimmus78 on January 22, 2015, 10:26:22 amWhich frontend did you use?http://sigrok.org/wiki/GUIWhen I discovered sigrok, I thought Pulseview could handle DMM, but it's only compatible with LA and DSO/MSO...So no data graphing yet, we'll have to wait for PyQtGraph to be included later (http://sigrok.org/wiki/TODO#sigrok-meter)

author: mimmus78
author_rank: Unknown
timestamp: March 21, 2015, 10:49:51 pm
content: QuoteI used some crap software coming with VA520B. Anyway I think DE-5000 software should work too,but don't know where to get a copy of the DE-5000 software to test it ...Still have to spend some time with sigrok to understand how it works ... but it seems quite good softwarefor some command line tool or for automated test gig.

author: 1937
author_rank: Contributor
timestamp: April 16, 2015, 03:40:49 pm
content: Quote from: mimmus78 on March 20, 2015, 10:00:52 pmGood work!Today I also got all the components for my lcr-300.As ferrite bead used MMZ1608S800A.D13 is responsible for the external power supply from USB.

author: fpliuzzi
author_rank: Regular Contributor
timestamp: April 16, 2015, 04:36:35 pm
content: Is this the software that you are looking for?http://www.ietlabs.com/Drivers/DE_5000.zip

author: 1937
author_rank: Contributor
timestamp: April 16, 2015, 05:40:28 pm
content: Yep. This is it.Thank you very much.

author: rkierzek
author_rank: Newbie
timestamp: July 09, 2025, 08:19:22 am
content: Hello!I kindly ask you to re-upload the photos that are hosted permanently. On eevblog.com attachments, maybe?Currently, a very important piece of information is missing because the photos have been removed by the external hosting service.