digital oscilloscope diy kit manual
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digital oscilloscope diy kit manualYou are on page 1 of 2. I enjoy assembling things, so I opted for the kit version which requires all of the through-hole parts to be soldered. I have no idea what resistor goes where. And the board isn't marked with values. I've contacted the seller with no reply yet. Or of a website I can get the instructions.Just thru hole to do. All I can find is pics. -MikeLook carefully and you will see they match.I did compare the ebay listing and all those dso328's are the same board. -MikeThe BNC connector is what threw me off. The resistors look like they are legible enough to figure out.Well, I'd do that if such a thing existing on the internet. Impossible to find.I've requested a refund, a replacement kit that contains instructions, or a set of instructions from the seller. Well, I'd do that if such a thing existing on the internet. Impossible to find. And no links to any websites.Totally different design. I did find the JYETech website, and they have lots of nice info and docs there. But like you said, nothing on the 328. No products listed, and nothing in their forums either. Strange. Is it possible that this is a completely counterfeit thing made by another Chinese company. Did you try emailing JYETech to see what they might say? No information about where they come from though, or instructions.And less experienced electronics hobbyists will need to know where the other parts go as well. IMHO this DSO328 is some kind of chinese copy of JYETech's oscilloscopes. If they are, we're good to go for the caps.I just created an account to mention that I also received a kit last week with no assembly instructions. It did, however, include usage instructions. I contacted the seller and requested instructions, but they only sent me the same usage instructions again. Once I mentioned again that I needed instructions on how to put it together, they responded by telling me that this was all they had.http://famous-celebrity-autographs.com/userfiles/brother-dcp-330c-manual.xml
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Everything on the board is self explanatory except for the resistors and ceramic caps. This seems to be a new product, and no instructions or clear pictures of the assembled product seem to exist online yet.So I just left negative feedback. I was hoping for prepaid return, but that didn't happen.Hope it gets resolved easily. Mine was fully assembled, but came with color step by step for population of pcb (in case you purchased as kit). So, not sure how many people are effected yet. But the board looks like the 138 (slide switch version). Certainly, someone wants to fly under the radar. I'm at work right now, so I haven't had the chance to compare this to the actual board yet. But just going by the filename I'm guessing that this isn't for the correct board.But it might be a good idea to start the dispute process with ebay.Return it and buy something from Fluke or Tektronix. You get what you pay for.I bought mine off of aliexpress. I've already started the dispute process. The way it works on aliexpress is that the seller has a few days to either make it right, offer a proposal, or both sides come to some agreement before the site steps in and completes the process. I just have to wait four more days at this point. But, I bought this as a fun little project to put together. The finished product was literally a dollar or two more than the kit. Never would have guessed that it would have come with absolutely nothing in regards to instructions.Return it and buy something from Fluke or Tektronix. You get what you pay for. Maybe once they get it together, it might be useful, but it's probably more of a project. Tuning C5 in 3.3V mode works fine. Photos attached. Any ideas?I will update my post.This will help other people who choose to buy this as a kit. Thanks for doing it. Just today, I received one I had ordered through eBay.http://dm288.com/slicice/brother-dcp-330c-user-manual.xml I attempted to contact the seller but received an automated reply that stated they were unavailable until after February 22 due to the Chinese New Year. Would it be possible to get a copy of the user manual?You are on page 1 of 2. Certain page elements may have been deliberately hidden. Scan the QR code on the right to jump to the URL this document was printed from. It is still functional and normally is enough good for the purposes used, but is very heavy and not comfortable for some works outside home. For its replacement I was looking for a cheap and tiny alternative. One possibility was to design an Arduino based scope, but it has few disadvantages - its analog bandwidth is quite low and always, when making some DIY project appears the main problem - where to pack all these electronic parts or how to find nice looking housing. I do not own 3D printer and for me the only possibility is to use standard cases available on the market, what not always is the best looking solution. To avoid these troubles I decided to get a DIY Oscilloscope kit. After some research I decided that it would be the JYETech DSO150 Shell. It is very small, enough powerful (based on the ARM Cortex 32-bit microcontroller STM32F103C8 - very useful site for this chip: stm32duino ), I can put in my pocket and carry it everywhere. This instructable tells how to assemble the kit in the right way, what you should not do and how to get clean from the troubles, you could create. I will describe all my assembling experience in the chronological way. Add Tip Ask Question Comment Download Step 1: What Is Inside. I ordered the kit and after the normal waiting of around a month the kit arrived finally. It was nice packed. It contained two PCB's with all SMD devices soldered.http://eco-region31.ru/3m-maintenance-manual-navy (When you order such kit be careful - there is a version of the kit in which the SMD devices are not soldered, and if you do not have experience in the soldering of such devices - it could be heavy challenge for you - better order a kit with soldered ones). The quality of the PCB's is good - all devices labeled and easy to solder. One of the PCB's is the main one - the digital one with the microcontroller. There is also a nice plastic box, short probe cable and assembling guide. My advice - before starting the assembling - read the manual. I did not do it and I went in troubles. Add Tip Ask Question Comment Download Step 2: Let's Start. As first step is recommended to test the digital board. I have inserted the 4 switches without soldering. Very big mistake! DO NOT DO IT ! In the manual is written that the maximum supply voltage should be 9V. I saw that the linear regulator used was AMS1117, which must survive 15V and I was calm. OK. At the first test it did not fail. See the movie. Attachments Video0036.mp4 Download Add Tip Ask Question Comment Download Step 3: Soldering. As first I have soldered the test signal connector. It must be first bent. Follow the battery connector and the power switch. After that comes a 4 pin header (J2) for the rotary encoder. With that the soldering of the main board has finished. Add Tip Ask Question Comment Download Step 4: I Am in Trouble. There is a 0 Ohm resistor on the PCB, which bridges the power switch. To make the power switch functional this resistor (R30) must be removed. Easy done! New test. I have supplied the main board again (12V) and switched it on using the power switch. The screen remained white. (see the video). Few consequent attempts did not change the situation. Suddenly a tiny smoke started to go out of the AMS1117 regulator chip and it package blew up. I unsoldered it and placed a new one (I had few in my personal storage available). I powered up again the board - again white screen - no booting.https://gpwestlondon.com/images/bremshey-service-manual.pdf After 20 seconds again came the blue smoke from the regulator chip and it burned out again. I removed it from the board. Using ohmmeter I have measured the resistance between the power line connected to the output of the AMS1117 chip and the ground. It was zero Ohm. Something went absolutely wrong here. The board was dead. I decided to find out where the problem is. There are two chips on the board - the STM32F103C8 and some serial memory chip. One of them was failing. To check which I used unusual method. I applied 3.3V (what should be the normal output of the AMS1117 regulator chip) on the supply line using strong power source. After few seconds the STM32F103C8 chip became extremely hot. It was the problem. It had to be unsoldered from the PCB It was very difficult task because I could not use hot air gun - it would desolder all surrounding devices. Then to me came the idea to desolder the chip by its own heat - I supplied the board again and after a minute the chip was so hot that the solder started to melt down. After that I removed it with a small kick on the bottom side of the board. The chip simply felt down. Using desoldering wick I cleaned up the soldering tracks for the chip. I decided to try to repair the board. After removing the failing chip the LCD screen was again illuminated white. I have soldered one of them on the board. Now - it has to be programmed to recover the functionality. If all tasks are done correctly - everything should be OK again.There is also possibility that the LCD screen could be damaged. For that there is also a solution available - you could buy such one in aliexpress. Check also the pins order. How to program the STM32F103C8 chip is described in the next step. Attachments Video0037.mp4 Download Add Tip Ask Question Comment Download Step 5: Programming The process of the programming the ARM chip is written in the attached document. Under this link you can download the last flashing tool from the STM site.https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/162865611ab8f0---C35-xantrex-manual.pdf Yo can see my setup on the picture. I have attached also the hex file, which I used. For the last version, you can visit the site of JYETech. For the USB to serial communication I have used PL2303 based converter. FT323RL also will work. CH340g as well. Before programming of the board some resistors must be desoldered from the board. (see the document). Do not forget to solder them again when everything is ready. I had luck and everything went good again. I continued with soldering of the analog board. I have used an Ohmmeter to check their value instead using color code. At each soldered part I put a mark on the manual to know where I am. After that I soldered the ceramic capacitors, the trimming capacitors, the functions switch, the electrolyte capacitors, the BNC connector, the pin header. Add Tip Ask Question Comment Download Step 7: The Rotary Encoder It must be soldered on a small board. Be very careful to solder it on the proper side of the PCB - in other case the scope will fail. Add Tip Ask Question Comment Download Step 8: Assembling Now we are ready for assembling. First place the LCD in the dedicated place. I have removed the protecting folio before that. Under the scope I have put few layers soft kitchen paper. Bend gently the LCD connection flat cable and put the main board over it. Insert the rotary encoder in the header connector and fix it using two of the short screws Add Tip Ask Question Comment Download Step 9: Tuning Now the analog board must be inserted as shown on the picture. In this way some analog voltages must be checked by voltmeter. Be aware that some of them depend on the supply voltage ( I have found this). The voltages written in the table at step 4 of the manual are measured at supply voltage 9.2V. After that some distortions of the signal (see the picture above) can be corrected by tuning of the trimming capacitors. See the procedure in the manual.At fist the test terminal must be inserted. The top cover frame is put.www.concrete-mix-plant.com/d/files/canon-7s-repair-manual.pdf Be aware that if you not orient it correctly, you will not be able to close the box.(see the picture above for the correct orientation). The housing is closed and after that fixed by 4 screws. As final step the plastic knob must be put over the rotary encoder shaft. Now the scope is ready to use. It has internal test signal generator and this signal can be used for some adjustments and learning. The functionality of the different knobs is described in the manual. The short video shows some of the functions. One of them shows a lot a signal parameters in real time, what can be very useful in some cases. Thank you for the attention and good luck with playing. Have a fun with this small toy - toy for adults and young electronics freaks, Attachments Video0041.mp4 Download Add Tip Ask Question Comment Download Share it with us! I Made It! Recommendations Water Synthesizer With MakeyMakey and Scratch I have problem in to download the videos can you help me to download it. When I tryed to download I got the followin mensage: This XML file does not appear to have any style information associated with it. The document tree is shown below.I have redirected the problem to the site support and I hope soon to have positive answer. Thank you for reading the instructable and the nice words. Regards Milen 0 cwamagalhaes Milen Regards William 0 ashiekh Good luck! 0 tytower The power switch does not work so this may lead me to why -Thanks 0 mcstarcoin Post Comment Categories Circuits. It is an electronic instrument that allows you to observe various signal voltages in 2D-plane and can change the functionality with respect to amplitude, frequency, time and distortion. It also increases the performance of external devices and limits the distortions. By the end of this, you will be familiar with technical terminologies related to oscilloscopes, working, assembling and disassembling that helps you to take the right decision before you get it.http://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1628656149e03a---c337-skymaster-manual.pdf With this feature, the user can add on more features according to their wish. It has pre-soldered SMD parts. It also acts as a training kit of SMD soldering. The MCU does not need any programming as they are already done so. It is useful for all other basic functions like the duty ratio, average, maximum, minimum, frequency, peak-peak value of the waveforms. This kit is entirely also a DIY one and is partially Open source unlike the fully open-sourced Kuman DSO mentioned earlier. All you need to do is to assemble the protective casing over it and then you can use it. Simple and inexpensive, the kit, though partially open-sourced, has its MCU fully programmed. There is no warranty on the product. It performs all basic functions but in an advanced form. It avoids inter-board pin-headers by mounting the Display and MCU in the motherboard. The analog part is placed on a separate board which helps in proper separation of digital and analog circuit. The DSO Shell has a proper closed design. They are easy for users as the front panel, top and bottom brackets are flexible. It gives an accurate result and helps in measuring the waveforms. It is an assembled kit. You don’t have to do anything to fix it. Use it as soon as you get it. The design is very simple and easy to use. It has only the basic features. It has a Cortex-M3 ARM processor (STM32F103C8) from ST and an LCD screen to display clear waveforms of the signals. It uses the through-hole components as much as possible and gives you the best results. It needs a bit of electronics knowledge to set up the device but you will be getting a user manual along with it. It is not only a training kit but a practical device for everyday use. It has 1024 capture buffer rate. It shows the waveforms of the signals and maintains a proper accuracy rate. It is a pocket-sized device which shows waveforms in the digital 2.4 inch TFT screen. It shows the peak to peak, max-min, average, pulse width, frequency, period, etc.https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16286562c443e8---c320-service-manual.pdf It can be directly connected to the DSO 138 motherboard to make it a portable one for use. It has ARM Cortex-M3 processor (STM32F103C8) and can be used as ARM test development board. This product is used mostly as a training kit and does not have any advanced feature. All the SMD parts are soldered beforehand.It also has different modes to capture the waveforms like automatic, regular and one-shot modes.This device comes now in a standard kit format with a digital oscilloscope, a probe and a user manual. The devices are sometimes pre-assembled and sometimes not. We have hereby provided you with an article which lists down the best digital oscilloscope kit. Make sure it has all the components especially an instruction guide. Also here is a basic checklist that you should know before purchasing one. This is an extremely reliable device with an advanced open-sourced feature. But if you want a budget-friendly one then definitely go for others. It's easy and reliable for circuit operation. Features: Adopt ARM Cortex-M3 processor (STM32F103C8), and include a 2.4-inch color TFT display screen. Used for secondary development on the basis of this kit, for example, it can be changed to Millivoltmeter, data loggers. Come with instructions, easy to install and operate. Available rising or falling edge trigger. Observable previous waveform before trigger(negative delay). Can freeze waveform display at any time(HOLD function). Waveform storage function: will not lose the waveform after power off. Short-circuit and open-circuit detection: can help the user find out the soldering error. TFT controller recognition function. The SMD has been soldered, more suitable for electronic beginner. Notice: When you receive this DIY kit, please don't solder it before connecting with DC 9V power to test the circuit board, the board is normal if it displays scanning line; if the display is abnormal, please contact us.www.comycevalencia.com/galeria/files/canon-7n-manual.pdfIf you continue to use our services or create a new account, we will assume that you agree to our. You can unsubscribe at anytime. Subscribe Personal information provided may be collected, used and disclosed in accordance with our Privacy Policy Connect with Us Connect with us on your favourite social networks. We’ll let you know what we’re up to, and you can tell us how we’re doing. Please try again.Please try again.Please try again later.Adjustable vertical displacement,and with instructions,which increase the likelihood of adding different features or developing new applications on the hardware for usersIn order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. Register a free business account Please try your search again later.Detail assembly instructions are provided in combination with troubleshooting guide and schemata. Source codes are also available to allow the user to add their own features. Not included.Adjust DC or AC, the maximum test voltage of 1x probe is 40V.You need to replace the standard DC9V power supply to test.Adjust the DC gear. Then adjust the trigger to test in AUTO mode.This test point can still be used after removing the case, just clip it to the board with a crocodile clip. The main screen is a screen assembled by the casing, but the actual objects are separated and can be assembled or not assembled according to your wishes.To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness. Please try again later. bmccune 4.0 out of 5 stars Despite this the kit comes with complete instructions to build the board. There are no instructions for assembling the case though. I have included some pictures and there are several YouTube videos. You must separate the main board and the screen in order to mount the screen to one of the layers of the case then reattach it to the main board. I found it easiest to assemble the case from the middle out. Though the instructions show the installation of a test signal ring, this is one part of the board that was not done. Why I am not certain but it was a pretty easy fix as seen in the pictures. All in all a great kit but a set of case assembly instructions would have been much appreciated.See image - just flip it around if you run into this (I thought the USB was centered, it's not though). If you get a unit with a missing lead still contact the seller, they are very helpful.Just right for most lower frequency work, like working on arduino projects. An easy way to check an input or output for signal. It can be powered from a 9v battery so there is one less cord in the way. The case lets you stand it up while using it and you won't accidentally lay it down on something and short out the pins on the back. There were good instructions for the scope but none for the case. No worries, there are several YouTube tutorials. I think ill be making a new probe for it, the one included is not very convenient to use.Annoying case assembly. I happen to like soldering, so this kit wasn't as much fun to build, even though it was so much faster to get to a working state. The PCB is missing the serial number meaning this is most likely a clone and not an authentic DSO138, but it looks and acts identical to my first official one. The clear acrylic case is great for keeping the oscilloscope protected, but annoying to build. It took me 20-30 minutes from start to finish, and most of that time was just trying to peel off all the protective film. There are no instructions to help figure out how to build it, but I was able to figure it out fairly easily. The red button extenders need to be sanded down a little bit so they aren't pressed to hard into the buttons by the top panel.Its the case. Its a puzzle that takes some figuring out because there's no instructions and it really only goes together one way. The case is a sandwich of acrylic sheets (which can be fragile, BTW, so do not force anything). The trick is to assemble it from the top to the bottom -- there's a piece the screen bolts to, then a sandwich of two sheets and the top. Once you've got all this lined up and bolted together then you can add the main circuit board (and a number of very tiny acrylic pieces that operate the switches and push buttons. After that's bolted in place the sides and bottom just drop on.Since seeing a clear signal is more useful most of the time than a precision amplitude reading, this O-scope works out to be a super tool for the occasional user.The firmware apparently doesn't utilize the mini USB port for anything, so you don't get to export data to your PC. This should be mentioned in the description, so I'm taking a star off.Quality of the instructions varies. I would recommend that the buyer go through the operating instructions and try things out before assembling the case. Calibrate and adjust the scope before adding the case. The instructions tell you where and how. You might want to wear nitrile gloves when assembling the case, to keep it fingerprint free. I had to assemble the case twice to get it right, and one case part cracked. A drop of CA glue fixed it. A magnetic tray helps keep hardware under control. I think the scope is a good value, especially as a learning aid. The included case kit is important, necessary protection for the board.As was an assembled board Found descition of problem on their website, said amp IC was bad. As was an assembled board, I returned it. Nice little scope if it was not for this problem. Amazon made the return process very easy and even provided a shipping label for me to return at no cost to me. Refunded full amount when they got it back.Some of the switches are a little tight and you might have to do some filing on the top of the case to ease their operations. Manual is good, but basic, but again, if you are buying this, you probably already know how to use a scope anyway. Does go through 9V batteries fairly quickly, either use AC or a LIPO or similar cell.The resolution is actually better than what i expected so I'm glad. Keep in mind It has only one channel. As for assembly, just check a video online, it's faster. Overall though, for the price, I think this is a good product that fits my needs.Sucks but oh well. All other hardware included and seems to work well but the case is floppy now. So, you need to define the correct portion and content of nutrients. In this case, Smart Chef Food Scale will help to reach the aim due to its multi-functionality.Accordingly, it’s possible to set the scale to zero position, change the unit and battery check the level of charge. Chef scale provides practically unlimited food data in a variety of languages. Additionally, the user is able to create their own nutrition profiles. 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