Reviews and tear downs i can provide... - Page 1
Forum section: electronics / general

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: February 23, 2011, 07:32:39 pm
content: If anybody needs a review or tear down pics of following i will be happy to upload photos from my PC and write short review. Anyway i open everything and study & take pictures:I will leave out the equipment reviewed already like rigol scope and etc...1. Rigol DS1052E- fan replacement -http://hacklordsniper.com/Arhiva_projekata/Projekt_(16).html2. Fluke 199C - turn on problem solved -http://hacklordsniper.com/Arhiva_projekata/Projekt_(19).html3. Hameg HM400 -http://hacklordsniper.com/Arhiva_projekata/Projekt_(15).html4. Mastech M9803R5. Hameg HM 8001-26. Hameg HM80127. Hameg HM80188. Hameg HM8021-49. Hameg HM8030-610. Hameg HM8040-311. PSP programmable SMPS power supply (1X0-65V, 3.5)http://hacklordsniper.com/Arhiva_projekata/Projekt_(14).html12. Voltcraft VSP2653HE -http://hacklordsniper.com/Slike_projekata/Projekt_(1)/Voltcraft/Slika%20(2).JPG13. Weller WX214. Varin 1305 inverter welder -http://hacklordsniper.com/Arhiva_projekata/Projekt_(17).html14. CTEK MULTI XS2500 -http://hacklordsniper.com/Arhiva_projekata/Projekt_(18).html15. Asus R2E colling enhancement - applying heat sink directly to CPU -http://hacklordsniper.com/Arhiva_projekata/Projekt_(25).html16. Cheap 800 VA inverter -http://hacklordsniper.com/Arhiva_projekata/Projekt_(20).html17. Outback FlexMax60 -http://hacklordsniper.com/Arhiva_projekata/Projekt_(12).html- cant dissasemble it any further due to the thermal pads on mosfets ( i would need to replace it)18. Small linear power supply, burnt out transformer, cool chinese mains connections -http://hacklordsniper.com/Arhiva_projekata/Projekt_(14).html(now works from wall adapter)19. Rigol DG1022http://www.hacklordsniper.com/Arhiva_projekata/Projekt_(10).html

author: saturation
author_rank: Super Contributor
timestamp: February 23, 2011, 09:55:11 pm
content: WOW, a goldmine. I'm happy you wish to help us. I'd love to see all of them; but particularly:DG1022199CWeller WX2But feel free to post what you already have, I'll look at all of them anyway.

author: Mechatrommer
author_rank: Super Contributor
timestamp: February 24, 2011, 05:21:03 am
content: i second saturation.

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: February 24, 2011, 09:11:07 am
content: Im sorry but the 199C is only equipment that i cant teardown completly except i did so for fixing the power connector after i found out its only problem of the Fluke199C "cant turn on" symptom. Alot of people were changing the battery packs, chargers and so on without sucess. The problem is in low quality power jack from which centre needle breaks easy, and solution is to resolder it on the connector. Since this instrument is new, has 3 years warranty left and it costs 4800 EUR so i will not dig trough it completly yet. But i can answer any specifical quations, and also there is a fix for "power on" problem down:.Here is the procedure:http://hacklordsniper.com/Arhiva_projekata/Projekt_(19).htmlThe DG1022 is travelling and should be here soon:"departure from outward office of exchange GUANGZHOU"The Weller is currently in Germany by tracking number and should arrive next week. Those instruments will be teared down to last screw and postedAll rest instruments on the list are here...

author: Unknown
author_rank: Unknown
timestamp: February 24, 2011, 11:00:30 am
content: Lol @ the power strips.

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: February 24, 2011, 05:28:57 pm
content: Its a nice way for power strips, i thinkI planned to post a tear down of Hameg HM400, but unsuccessful. The scope halves are glued together, and i have no idea hot to reassemble it if i rip it open, so this tear down is a failure too.. At least I managed to see a peak at beautiful SMPS...

author: Unknown
author_rank: Unknown
timestamp: February 24, 2011, 06:03:02 pm
content: In the Hameg 408 I used to have the case was a 'shell'; you could slide out the internals. Quite typical in old scopes.

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: February 24, 2011, 07:17:37 pm
content: Quote from: Alex on February 24, 2011, 06:03:02 pmHere it is not, i tried. And scope internals would fall out in this mounting scheme.

author: Wim_L
author_rank: Regular Contributor
timestamp: February 24, 2011, 10:59:24 pm
content: Same thing in the HM1508-2. Loosen two screws at the back, and the whole shell comes off.

author: Unknown
author_rank: Unknown
timestamp: February 25, 2011, 12:04:24 am
content: Thnx for the pics hacklordsniper.In the second pic of the hameg, at the top left of the visible board. what is that chain of silver? Some soldered mount?Also on the right next to the electron beam pcb, what are those two loose enamel coated copper wires? In the same area I also see some slots on the PCB, I assume thats the high voltage section but what is the small vertical board?

author: zaoka
author_rank: Frequent Contributor
timestamp: February 25, 2011, 12:11:31 am
content: How is HM400 comparing to older Hameg scopes??I just sold Fluke PM3084 and I am looking at HM400 because of component tester that is built-in.

author: Unknown
author_rank: Unknown
timestamp: February 25, 2011, 02:22:05 am
content: Why did you sell the Philips?

author: zaoka
author_rank: Frequent Contributor
timestamp: February 25, 2011, 04:47:58 pm
content: Because I run electronic repair business and I do not use its features.I have an old scope that I used to build component tester, the same one that Hameg has. So basically when troubleshooting I use both of them, one as a scope and another one as component tester. If I sale Fluke I can buy HM400 and have both in one unit.As for scope I mostry use it to check for ripple and presence of the signal and I have good expirience with Hameg from Europe

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: February 25, 2011, 04:59:25 pm
content: Quote from: Alex on February 25, 2011, 12:04:24 amIts a chain of resistors feeding the part of high voltage to power supply (for regulation probably)Wires are connected inside tube and go to a chasis mounted transistors, with hidden marks.The vertical board is a high precision 1500 ohm resistorOnly thing i found was 2 clipped wires, test points, or? Im attaching pictures.Anyway i managed to open it, pics here:http://hacklordsniper.com/Arhiva_projekata/Projekt_(15).html

author: Kibi
author_rank: Unknown
timestamp: February 28, 2011, 12:25:03 pm
content: I would love to see a teardown of your Outback Flexmax 60.

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: February 28, 2011, 03:56:16 pm
content: Quote from: Kibi on February 28, 2011, 12:25:03 pmIn a day, i allready have photos of it.Edit: Added to top

author: xygor
author_rank: Regular Contributor
timestamp: February 28, 2011, 09:44:20 pm
content: Is that a surface mount dog (SMD) or a thru-hole dog on the right of the second photo?

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: March 22, 2011, 12:42:32 pm
content: DHL just came to me at work... teardown coming...

author: saturation
author_rank: Super Contributor
timestamp: March 22, 2011, 02:35:28 pm
content: congratulations! a functional review maybe easier to do first and tell us if the shortcomings earlier reviews mentioned have been fixed.Quote from: hacklordsniper on March 22, 2011, 12:42:32 pm

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: March 22, 2011, 04:30:52 pm
content: Nope, time to first take it apartFirst is unpacking, you get a Rigol DG1022, software & instruction manual burned on a CD, BNC-BNC cable, BNC to croco test cable and BNC to test spring loaded clips and a power cable. Cables are manufactured by UNI-T but quality is so good i have not seen such for a long time.So after easy disassembly and cleaning residue of warranty sticker for 10 minutes i finally opened the device. On first look you can see the power supply on the left and the mainboard on the right. Build quality seems fantastic, all connectors secured and bigger components also.Then i noticed a unpopulated socket marked "FAN" and a cutout for a 50X50 mm fan. Immediately i prepared to install it. It seems RIGOL decided to not use it since it was not actually needed. Since i like my equipment cool i decided to install a fan. While measuring the voltage at connector i learned that one load of fan circuit disappears in multilayer board and there is no +12 or +5 VDC on it ( i will investigate this detailed).You can easily see internal layers on the board under the strong light. As you can see there is an Altera Cyclone II inside, ADC-s is not readable.Just turned on the unit briefly during research about the fan and found some interesting things. When instrument is off the front panel on/off button "breathes" (glows slowly). While you turn on the unit the display flashes for a second, internal relays click and unit goes dead for few seconds. At the moment you start to be angry it comes on... But every time you get that feeling "its dead" when turning it on...Let me know what can i compare to "previous units". I did not have anytime to play with it currently...

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: March 22, 2011, 04:32:41 pm
content: Just this second the fan mistery is solved! The fan is temperature controlled, as the unit heats the voltage is slowly risen to 5 V. Gone to install a fan...

author: Unknown
author_rank: Unknown
timestamp: March 22, 2011, 10:00:30 pm
content: Thanks for the review hacklord. Is that a Blackfin processor? They left the fan out but kept the control circuitry. I guess modifying the assembly process was more expensive than leaving the components in.

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: March 23, 2011, 05:03:14 am
content: Quote from: Alex on March 22, 2011, 10:00:30 pmYes it is. I agree on your fan comments.I played with unit little bit this night. I like it, its very easy to understand all the menus and in hour or two the unit is completely understood. Connection to PC was easy and fast. Only problem is the software. Both Ultrawave and UltraScope ask install file on starting and i need to reinstall them. Then the software works fine until you close it, then a reinstall is needed again. Making and sending waveforms is easy, however i had a problem that my DG1022 freeze few times when communicating with software and i need to do "hard reset".Now i remembered i should search an updated version on the CD, i downloaded mine from rigolna. Also im 100 % sure i have seen a firmware update for DG1022 od the rigolna site when looking specs and cant find it anymore?

author: saturation
author_rank: Super Contributor
timestamp: March 23, 2011, 10:03:33 am
content: What OS is your PC running, XP, Vista, 7?Here's some added reviews for your comparison.http://translate.google.com/translate?hl=en&sl=zh-CN&tl=en&u=http://tm.eefocus.com/stupid/blog/08-10/159102_d89b4.html&rurl=translate.google.com&twu=1https://www.eevblog.com/forum/index.php?topic=197.msg1892#msg1892Quote from: hacklordsniper on March 23, 2011, 05:03:14 am

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: March 23, 2011, 12:13:47 pm
content: Im running XPI will check them today

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: April 01, 2011, 07:07:57 pm
content: Weller WX2 arrived just now. I drove all day, 300 kilometers, with my bike, when its so cold outside and dark just to come back home and see the units is DOA... Can you imagine i did not test it before taking it... Oh... alteast it is beautiful. I have sent an e-mail to weller and we will see what will they respond

author: Bored@Work
author_rank: Super Contributor
timestamp: April 01, 2011, 08:20:57 pm
content: Quote from: hacklordsniper on March 23, 2011, 05:03:14 amCareful with firmware updates. There are two hardware versions of the DG1022 out there with largely different, incompatible hardware. Firmware for one hardware revision doesn't work for the other.Rigol in general doesn't give a flying fart about support. They have completely dropped support for the rev 01 hardware and barely do anything for rev 02. But there are still vendors sitting on rev 01 inventory and shipping the old hardware, and rev 01 firmware was the only firmware I ever saw in the wild. For rev 02 firmware you probably have to suck someone from Rigol dry.

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: April 04, 2011, 10:22:01 am
content: My unit is firmware V2, but not sure is it the latest version.

author: flolic
author_rank: Frequent Contributor
timestamp: May 06, 2011, 03:26:03 pm
content: Quote from: hacklordsniper on March 22, 2011, 04:30:52 pmQuality of those cables is like sh*t. In fact, even worse than that. I pulled my hair for an hour until I realized that I am loosing groundconnection because BNC connector is made of plastic!? It's not standard metal BNC encapsulated in plastic, but actually outer part of connector (bayonet) is made of plastic.Very soft, low quality one.I throw them away right away...

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: May 06, 2011, 08:04:41 pm
content: Unfortunatley i will not get my Weller WX2 back. Weller admitted a hardware flaw on these units, which makes them die immediately after turn on in certain conditions. They are pulling all the units away, i will get my money back in monday. The new units will be again available at unknown time frame. I will never buy weller again. Anybody who bought this units can get money back, no questions askedQuote from: flolic on May 06, 2011, 03:26:03 pmQuality of those cables is like sh*t.I quess you got something other than what i got

author: Bored@Work
author_rank: Super Contributor
timestamp: May 07, 2011, 07:47:43 am
content: People who shout have nothing to say.

author: flolic
author_rank: Frequent Contributor
timestamp: May 07, 2011, 01:47:47 pm
content: Quote from: hacklordsniper on May 06, 2011, 08:04:41 pmI don't think so

author: Rufus
author_rank: Super Contributor
timestamp: May 07, 2011, 07:33:28 pm
content: Having owned a TG1010 for years and finding it a reliable and versatile workhorse I have a hankering for one of thesehttp://www.ttid.co.uk/go/tg5011/index.htm.Surprisingly similar to the rigol visually.Anyone used/seen one?

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: May 08, 2011, 08:26:47 am
content: Quote from: BoredAtWork on May 07, 2011, 07:47:43 amIf its about my post about the Weller WX2 flaw i just wanted to notify people about it, not to buy that crap and spend alot of money on a soldering iron which is a bad product

author: saturation
author_rank: Super Contributor
timestamp: May 08, 2011, 04:49:47 pm
content: You don't need to spend a lot for a good soldering iron; many of the lower end Hakkos are used by industry and proven in real world production soldering. THe FX888 is a good buy, replacing the often copied and now retired Hakko 936, and it and its accessories are still made in Japan.Quote from: hacklordsniper on May 08, 2011, 08:26:47 am

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: May 11, 2011, 07:37:21 pm
content: Thank saturation, i was allready considering hakko. I would never buy weller again

author: legacy
author_rank: Super Contributor
timestamp: November 02, 2013, 01:17:58 am
content: anyone has Mastech M9803R ?any review around ?

author: bktemp
author_rank: Super Contributor
timestamp: January 08, 2014, 02:13:52 pm
content: No review but some teardown pictures of my M9803R.The design and build quality is not good, just have a look at the groundplane around the input fuses: The spacing is less than 1mm! And this multimeter is CAT II rated and measures up to 1000V.It looks like a handheld multimeter just built into a larger case. The main chip is a NJU2910.I would not buy it again. An older HP or Fluke multimeter should be a better choise.