circuit board

 Hi guys, I am looking for a high quality circuit board manufacturing  that can deliver high quality  circuit board ASAP and with fairly reasonable cost .  any suggestion?

Topic by Michael2000 4 years ago  |  last reply 3 years ago


Circuit boards

Does anyone know where I can find replacement circuit boards for my Gateway model number vg70 laptop

Question by CarletonG 6 weeks ago  |  last reply 6 weeks ago


circuit board

I need to make a circuit board for a project. It is all 12vdc, I have a 1a fan and a 6a thermoelectric device one setting 1, plus another 6a on setting 2, and a 3rd on setting 3 So 1 is 7a 2 is 13a 3 is 19a How to make the board. Also a second device has the 1a fan plus a 4watt element, plus another 4w on setting 2, plus another 4w on setting 3 So 1 is 1a and I think 0.4a= 1.4a 2 is 1.8a 3 is 2.2a. I think

Topic by Johnieahenderson 2 years ago  |  last reply 2 years ago


Cree Circuit Board Answered

Hi,I just want to know what a Cree Circuit Board is?Can this be used to connect a cree led to mains 220 volt AC? Here's a link-http://dx.com/p/18v-5w-cree-circuit-board-for-flashlights-16-8mm-5-5mm-26110?rt=1&p;=2&m;=2&r;=3&k;=1&t;=1&s;=58305&u;=26110

Question by Adarsh_tronix 6 years ago  |  last reply 6 years ago


Crystal circuit board ?

Can crystals ( quartz, ruby , amethyst, etc.)  be used in technology to amplify power? keep power sustained, renew power or something ? 

Question by AlexxSolace 6 years ago  |  last reply 6 years ago


Trim Circuit Board?

Hey guys. I'm new to these forms so please bear with me. I'm looking to undertake this project:    Snes bluetooth Controller Mod https://www.instructables.com/id/Bluetooth-SNES-controllergamepad/   My goal is to be able to fit the keyboard into the Snes controller. My question is would you be able to cut off some of the unused keys on the bluetooth keyboard and still keep it functional?

Topic by Vega 034 4 years ago  |  last reply 4 years ago


Circuit Board Help

I have a Sony hcd-fx10 dvd home theater system, and one day I turned it on and it went into protect mode. I contacted Sony and they said it needs to be serviced. I found a service manual online and took the unit apart. I consider myself handy, so this was not a problem. Upon further investigation and with use of the service manual, i found a brown burn mark on the bottom of the motherboard, which corralates to the protection detection module on the board; which is my prblem. My question is, Can I simply remove this module, or does it need to be replaced with a new one or something similar? I don't know much about circuitboards but have some skill at soldering. Attached are pictures, the best I could get of the small board, showing the actual module on the board and the burn mark on the bottom of the board. Any info would be great. Thanks.

Topic by jmmybear730 10 years ago  |  last reply 10 years ago


cutting in circuit board?

I have this circuit board which I pulled from an iPhone dock. When I look at the bottom, it seems obvious where the wires and connections are running. Does this mean that the area marked in the photo below is fair play for cutting and removing without effecting the functionality of the circuit board? The project I'm working on would greatly benefit from being able to remove a small part of the plastic.

Topic by Flark 10 years ago  |  last reply 10 years ago


CAD for Circuit Boards

What software do you use for designing circuit boards? Do you like it? I've been using Eagle, but have been entertaining the idea of switching it up.

Topic by randofo 10 years ago  |  last reply 10 years ago


peltier circuit board

Circuit board I need to make a circuit board for a project. It is all 12vdc, I have a 1a fan and a 6a thermoelectric device one setting 1, plus another 6a on setting 2, and a 3rd on setting 3 So 1 is 7a 2 is 13a 3 is 19a How to make the board. Also a second device has the 1a fan plus a 4watt element, plus another 4w on setting 2, plus another 4w on setting 3 So 1 is 1a and I think 0.4a= 1.4a 2 is 1.8a 3 is 2.2a. I think

Topic by Johnieahenderson 2 years ago


Help with Circuit Board

The effect light below is supposed to sequence the lights on and off, one at a time, in response to music (sound). Well it does that, but not until the input is around 95 - 100 DBs. I'm trying to figure out what to replace so that it responds to sounds at lower DB levels. The left knob on the rear is for sound adjustment (worthless at this point), the right knob is the chase (sequence)speed. The sound is set to max and the lights still doesn't respond until you really crank the music up. CN2 is where the sound and chase controls connect. It's wired, left to right as follows 1 - red from chase knob 2 - yellow from chase knob 3 - red from sound knob 4 - yellow from sound knob 5 - blue from sound knob The pin block in front of CN2 is power and the other block goes to LEDs on the rear of the unit. I'm trying to figure out what I can replace to make this more sensitive to sound input. The mic isn't the issue, I've tried several and even directly wired headphone input into it and still had to crank it up before it would respond. No comments on my soldering butcher job on the back. The red wire is the positive to the mic (which should be in the burned out hole to the left, but it works there - no better, but no worse) Any thoughts at all on what I could play with to make this thing respond to sound a lower levels would be greatly appreciated.

Topic by BradWhite 11 years ago  |  last reply 11 years ago


Need to build a circuit board

I need to build a small circuit board, with a timer and a led light, small as a nickel, I will provide more details. any idea?

Topic by danielm 10 years ago  |  last reply 10 years ago


Translating a Schematic to a Circuit Board

I need help translating this schematic to a circuit board. As in which rows to place what due to emitters and bases. I'm new at this, please help.

Topic by dwatord26 9 years ago  |  last reply 9 years ago


Print Circuit Boards with Squink

From kick starter page: Create circuit boards in minutes, from home, at the cost of a cup of coffee - Squink prints conductive ink and assembles your circuit. Atmel had posted about a new device called "Squink". What it does is print a circuit board on paper (or anything flat like glass), applies conductive glue to the contacts, and automatically places your components on the board for you! They have a kick starter here:  https://www.kickstarter.com/projects/botfactory/squink-the-personal-electronic-circuit-factory but I am 13 and cannot fund it. I believe this device will be found in the home of makers all over, and I think spreading the word will help these people. So please head to the page and fund/share the word!

Topic by DELETED_JesusGeek 4 years ago  |  last reply 4 years ago


circuit board repair question

This little audio input jack broke off a circuit board.  I'm wondering if anyone knows what I need to do to fix it? You can see that there are 4 metal connectors which I assume a soldiering iron can easily fix.  But there is also an orange strip that snapped off of the little orange baseball home plate-shaped tab on the bottom of the jack.  Does anyone know what that is and the best way to repair it?  (The loose strand is right by where it says "CN6" on the board) I don't know anything about circuitry but was going to borrow a friend's soldiering iron. Thanks to anyone who can point me in the right direction! Phillip

Topic by pmottern 1 year ago  |  last reply 1 year ago


Circuit board etching traces? Answered

I want to learn how to etch my own circuit boards but I'm not sure what to use for marking the traces. I've heard about using a sharpie maker, which sounds pretty easy, but does it really work? To me it seems like it would come off from the acid.

Question by Arya42 4 years ago  |  last reply 4 years ago


motor driver circuit board?

Hi, i am just trying to build a motor driver circuit board (ardiuno sheild) like that are posted on the front  web site of "society  of robots" by using integrate circuit (L298). does any body knows where i can get that kind of design?

Question by dan12 9 years ago  |  last reply 9 years ago


Printed Circuit Board Help...

P { margin-bottom: 0.08in; } Okay I found this circuit that about Attack and Decay but I have no idea what it is...after research, I think its a effects pedal...(leave a comment if I'm wrong.)  So, it is complex so I want to make this into a circuit board but am not too good so some help would be appreciated.   Can anybody help??? Thanks in advance. Make sure you read my image notes. They are very critical to the design...I think.    

Topic by blinkyblinky 7 years ago  |  last reply 7 years ago


how to make a circuit board

Circuit board I need to make a circuit board for a project. It is all 12vdc, I have a 1a fan and a 6a thermoelectric device one setting 1, plus another 6a on setting 2, and a 3rd on setting 3 So 1 is 7a 2 is 13a 3 is 19a How to make the board. Also a second device has the 1a fan plus a 4watt element, plus another 4w on setting 2, plus another 4w on setting 3 So 1 is 1a and I think 0.4a= 1.4a 2 is 1.8a 3 is 2.2a. I think

Topic by Johnieahenderson 2 years ago  |  last reply 2 years ago


How to make a circuit board?

I have bought an assortment of resistors and capacitors and circuit board s, but how to make Circuit board I need to make a circuit board for a project. It is all 12vdc, I have a 1a fan and a 6a thermoelectric device one setting 1, plus another 6a on setting 2, and a 3rd on setting 3 So 1 is 7a 2 is 13a 3 is 19a How to make the board. . Also a second device has the 1a fan plus a 4watt element, plus another 4w on setting 2, plus another 4w on setting 3 So 1 is 1a and I think 0.4a= 1.4a 2 is 1.8a 3  is 2.2a. I think I need to know what components to use, Right now I have each portion wired directly to the switch which is directly wired to the battery. I have burned out one of the 4watt units (I assumed it would just draw the power it needed) so I don't want anything else to burn out. Eventually I wanted to have a rotary multiple switch controlling both sets with a neutral in the middle (if I can find it) Printing a circuit board is next to learn,  but I already bought several boards and various assortment of components, just don't know which ones to use Also where to buy this.       12vdc 20a 7 position off in center rotary multiple switch for sale

Question by Johnieahenderson 2 years ago  |  last reply 2 years ago


Help with LED circuit board

Hi all it seems i put my question in the wrong place. so keep it short this time. I have some diagrams from web for LED circuit board.  http://www.plosone.org/article/info:doi%2F10.1371%2Fjournal.pone.0002146 http://www.ncbi.nlm.nih.gov/pubmed/19772530 http://www.stanford.edu/group/blocklab/GutierrezAJP2010.pdf However I need a better power supply than 9v at 1amp and 8v for this project to work out cheap and from mains rather than batteries. any advice would be greatly appreciated. H

Question by hooman123 6 years ago  |  last reply 6 years ago


Adding Capacitors to a circuit board

I have a circuit board I made, very simple, you connect a 9 volt battery to it, power opens a relay, and turns on a green led, there is a zener diode (6.1v maybe, cant remember) for a flashing red led, the led flashes if the voltage drops below the voltage of the zener diode.  My questions are; 1.) If I add capacitors to this, will it extend battery life (about 4 hours right now) 2.) If 1 is yes, what kind of capacitor will I use? I work with capacitors every day, but bigger ones like 5mf 330V, 35mf 440v, dont know much about the smaller ones. 3.) If you can make something better, please let me know, it needs a power light, a low battery light, and a relay (SPDT, 9 volt battery is on the coils to keep relay open). Ideally I would like this board to have a long battery life.  Any help would be great.

Topic by EXL949 5 years ago  |  last reply 5 years ago


Inkjet Printed Circuit Boards

Would it be possible to use Bare Paint or any other electrically conductive fluid as a substitute for ink in any inkjet printer. Then printing onto a thin piece of plastic, or even paper, then gluing it to plastic. I have no idea if this would be possible. It was just a random thought I had.

Topic by aprzy15 6 years ago  |  last reply 5 years ago


Instructable on electroplated circuit boards?

I managed to plate a copper trace onto piece of acryllic today, to test out a process for easily and cheaply making (and possibly editing/repairing) custom PCBs. The adhesion appears to be good for surface preparation used so far, and a nice thick track has formed. So, would it be worth uploading an instructable once the process has been refined a little (or enough to make simple boards properly)? Any questions, feedback or comments would be appreciated.

Topic by The Skinnerz 7 years ago  |  last reply 2 years ago


Circuit board heat Trouble. Answered

Full disclaimer, I am still learning and at my current skill level I am essentially following a picture book showing how to hammer a nail then emulating it, Hope that analogy paints the picture correctly. Now for the problem! I have embarked on a journey of growth and learning, in said adventure I took a personal challenge of building something and hopefully learning in the process. Needless to say I did learn, some lessons more painfully than others (soldering Irons are HOT *Sigh*) but I am at an impasse. You should see attached (hopefully) one schematic and two photos. The schematic correlates to the board of course. The next two are of the silkscreen on the board (empty) and the board upon "completion". If you notice in the empty board photo I have drawn your attention to a specific area, the area in question. In this area there seems, during testing, a decent amount of heat build up. Now this may be normal, I do not know. The device calls for the use of three Protected 18650 Lithium Batteries (3.7V I believe). I attempted to do a continuity test with what I thought was under voltage, in hindsight, I'm not sure whether the power cells are in series or parallel so perhaps I was not under? anywho that is when I noticed the heat in that area. I hope I have illustrated my predicament enough for a solid enough understanding, If not I apologize. Please ask any information you require. 

Question by Dauntless 4 years ago  |  last reply 4 years ago


PC Board

Hey all, Today I bought a PC board (printed circuit). I plan on making a flashlight with it and some 10 mm LED's I have, but I need some info on how to use the board. If I have a PC Board, how would I put the LED's on the circuit board for all of the lights to show up at once. (hence the flashlight). If anyone could diagram it out, or tell me a good way to do this, it would be really apprciated. Thanks a ton, Nicholas Brenn

Topic by Brennn10 12 years ago


Can I reprogram this?

This is for a LED USB BULB, can i reprogram it?

Topic by SelinA4 1 year ago


Bypassing a multi function controller

I have just bought a laser nebular disco thingy off ebay (incorporating a red and green laser) - and whilst its works fine, I don't like the fact that it switches between various modes automatically (flashing, steady, red only, green only etc).  I opened it up to get some pictures of the circuit board - and wondered if anyone with knowledge of electronics could point me in the right direction with regards to bypassing the multi function controller on the circuit board.  I just want both lasers to remain on all the time. Thanks

Topic by Bunglinpie 6 years ago  |  last reply 6 years ago


Nested USB boards...

I am working on a DIY thumb drive.  I want one Flash drive sticking out each end of this casing. The two circuit boards will be nearly touching, nested, one on top of the other in opposite directions.  Should I be concerned, should I put something between them?

Topic by benjaminleebates 6 years ago  |  last reply 6 years ago


Circuits and Circuitboards

I would like to make circuits using paper and a conductive ink pen, but there's not way to "attach" the components to the paper. I'm looking for a conductive glue, like epoxy or super-glue, I can apply directly to the point of contact between the paper and the component. Can anyone suggest a product, or how to make such an item? Thanks, Kevin

Topic by kevin.t.stein.3 1 year ago


how to put a circuit board to gether?

I want to learn how to make a simlpe circuit board ?

Question by CDGoforth 9 years ago  |  last reply 9 years ago



Can we redraw these circles in the remote control circuit board?

Dear Experts, Attached picture is of the Philips home theatre remote control. It actually has 12 buttons but only 8.5 of them are visible clearly on the circuit board. The last row is totally invisible and those buttons doesn't work as well. Can you please help me with some tips to get it fixed. This remote control is not available in the market anywhere and hence this attempt.

Question by kevivnajar 5 years ago  |  last reply 5 years ago


Need HELP in identifying items on a GPS unit's circuit board

I need to put items back onto this circuit board that came off. Just want to know what they are. In the picture below, they are shown with the arrow. One is a cylinder with "671 220 50z" written on it. The other is just a tiny rectangle with a solder connection on each end. My unit won't connect with satellites and I'm wondering if these that somehow came disconnected have something to do with it.

Topic by rhinson 11 years ago  |  last reply 11 years ago


Of solder and circuits

To dodge an onslaught of summer boredom, I'd like to fart around with small scale electronics projects (LEDs, maybe a circuit board, etc.). I hope that by the time I finish farting around, I would have something nifty to post on this website. Unfortunately, I have little practical knowledge of this stuff (other than what I learned five years ago in high school electronics). I mean, I don't even know how one technically refers to "this stuff." Can anyone recommend some good books or a general method of wetting one's feet before jumping into the pond? Highly technical sources are obviously beyond me at this point, so I'm looking for introductory-level information that can be flexibly applied to whatever bizarre project pops into my mind on Friday afternoon.

Topic by ringtail.jack 11 years ago  |  last reply 11 years ago


Velleman sound-to-light kit

A Velleman sound-to-light kit (Radio Shack MK103) is a small circuit board powered by a 9v battery which lights LED bulbs when an audio signal is received by the microphone. I would like to connect this board directly to the headphone (output) jack of my audio device (metal detector), thereby bypassing the microphone input. This would allow visual operation of the detector without the use of headphones. When an object is detected it would illuminate an LED as opposed to sending an audio signal. Is it possible to de-solder the microphone on the circuit board and solder in a 3.5mm male connector which would plug directly into the audio output device? I have never worked on a circuit board before and I have ZERO knowledge of electronics, but the kit is only $8 - so I think it's worth a try - if the electronic wizardry is correct, that is. Thanks in advance for any help! -Bruce

Topic by Inspector-Gadget 7 years ago  |  last reply 7 years ago


I need to know where to put the POT in the treadmill motor controller?

 I need to know where to put the POT in the treadmill motor controller? Because I have a digital controller from model MC2100 (proform 400X) Thanks

Question by dulo 9 years ago  |  last reply 9 years ago


Timer Circuit

I found this simple circiut on jamesyawn.com, and was wondering if and how to change it so that it could time in the minutes, longer than it does already. I don't know anything about electronics, aside from soldering, and basic connections, so try to give a simple-ish answer. I also wondered about what transistor to use (like a radioshack part number). The circuit I was talking about is under "discrete timers".(update, more questions)What kind of timing (like how many seconds) would I get with this?Using the same stuff shown on the schematic?Also, how do I pick a transistor?Are they interchangeable? What specs should I be looking for? If this seems like too much, could someone give me a link to a site that would be willing to help with (very) beginning electronics?AND, how would you recommend making the transfer schematics for home-etched circuit boards? I can't get the component spacing right.

Topic by John Smith 11 years ago  |  last reply 4 years ago


Looking for pre-printed circuit boards

I've been looking around the web trying to find a place that sells ready made circuit boards, plated and pre-drilled; like what you would find in Radio Shack but with a larger selection. I've looked at Mouser and their selection is rather limited. What I need is a circuit board about 1" square for mounting tactile buttons on it.  Like I said I've been looking all over and all I can find are websites that make custom circuit boards, but nothing already made. So anyone know of a place where I can buy already made circuit boards?

Topic by wickednick 6 years ago  |  last reply 6 years ago


Why is the circuit so squiggly? Answered

Hi all, Something that's been bothering me for years (I clearly have no life)... Why are traces on  printed circuit boards sometimes very squiggly, when there's an obvious shorter, straighter path. I've attached a picture of a PC RAM card that shows what I mean. Thanks!

Question by Morgantao 1 year ago  |  last reply 1 year ago


Printed circuit bards

I was wondering if I can print my circuit design onto acetate and use it to expose my circuit board. Would that work? If not what could I do instead of of ording them for rediculous prices online?

Topic by pattyshaw 7 years ago  |  last reply 7 years ago


My RC car circuit board

Hi, i need some help. A few weeks ago i took apart a RC (remote controlled) car circuit board but some of the cables couldn't hold and just broke off so i'd be so thankful if one of you smart people out there could tell me (or draw on the picture) where everything is supposed to go (including the antenna :-) and the forwart and backward motor. thanks Kacper

Topic by kacper00100 11 years ago  |  last reply 8 years ago


connecting a breakout board to a strip board

Hi.  A basic question; I need to connect a breakout board to a strip board. What is the best method?  PCB Latch plug header? I have tried putting a wire through the strip board, through the breakout board and then soldering into place, but I do not get good connectivity.  Any help is much appreciated.

Topic by NathanDavey 5 years ago  |  last reply 5 years ago


Relay control board for ROV

     I'm working on a control system for my ROV and I'm not sure what to do. I plan on having 2 wires for power then a cat-5 cable for control of relays/ video. Does anyone have any ideas, schematics, or plans for a relay based control system... Inputs to controls: - 12v boat battery - 5 pairs of 22 AWG solid wire ROV side hardware: - 3  500GPH attwood bilge pumps modified with 60mm model boat propellers - 1 A/V camera - 2 3 LED lights (9v per 3)   If anyone needs any extra information... The ROV is based off of the SeaFox ROV from www.amazon.com/Build-Underwater-Robot-Other-Projects/dp/0968161006.  Please realize that it uses a near similar frame but different motors. Thanks to all who help. Citing and stuff: - ROV picture - homebuiltrovs.com

Topic by ry25920 9 years ago  |  last reply 9 years ago


Cutting Circuit Board with ESD precautions

I thought I read a post on a pretty ESD-safe way to cut a circuit board without harming the chips on it. Anyone have that info? I did a search with no luck.

Topic by royalestel 11 years ago  |  last reply 11 years ago


Help identify points on circuit board?

Hi, I got a 3.5 stereo adapter and mic cable for a cell phone. I want to convert it from the non-standard cellphone jack into a 3.5 stereo jack so I can connect it to the mic jack on my computer. Is it possible? I need to figure out what the wires lead from. There also seems to be a fiber optic(?) wire. Circuit pic: http://i71.photobucket.com/albums/i148/phillyj101/circuit.jpg mic/switch pic: http://i71.photobucket.com/albums/i148/phillyj101/P8270456.jpg

Question by phillyj 7 years ago  |  last reply 7 years ago


Computer Circuit Board Identification request

Here are a few pictures of two boards I have (I am not sure how old they are, but they either came from my old 8088/8086, 286, 386, or my PS2 (all long gone now). What I need to know is what they are/were and are there any specs out there (I can't seem to locate any): one has a port on the side, one does not. The one without the port has a T.I. chip that looks like an IR programmable PROM with PGM=12.5 v on it. There is also a crystal with 24.000 stamped on it. The other one it probably an old video card but it has only 4 resistors on it and one resistor bank, plus four capacitors, and two ic's. One is labeled: 74LS245N ( Octal Bus Transmitter/Receiver designed for 8-line asynchronous 2-way data communication between data buses ), the larger IC is an unmarked 40 pin device. I tried for half an hour to get half decent pictures of them, sorry for the quality.

Topic by Goodhart 11 years ago  |  last reply 11 years ago


Help with understanding pinout on circuit board

I'm an HVAC technician and at school they had a bunch of Carrier EMI thermostats that connect to a router with a module. I'm pretty tech-savvy, but I'm not the greatest when it comes to wireless technology. On the board there are spots labeled: Tx, Rx, A2D2, GNDs, GNDp, and 12vdc. Then there are another 2 labeled OAT and OATC. What do these all mean? All I know is that Tx and Rx are transmitting and receiving. Any help is much appreciated.

Topic by musick_08 5 years ago  |  last reply 5 years ago


Opinions on a new circuit board idea...

I wanted to make a clear enclosure for my latest project and I thought it would be cool to make a clear PCB, but I wanted to get a few opinions on my idea.. I was thinking about using a cnc machine to etch my circuit design in acrylic and then fill the recessed cuts with bare paint, then after drilling it out, using more bare paint to "solder" the components. I'm sure someone else has come up with this same idea, so I was wondering how it worked out for them. Thanks guys!

Topic by emikayee 5 years ago  |  last reply 5 years ago


Source for sheared flush circuit boards

Thinking about making wallets and or clipboards with circuit boards for the holidays. Does anyone have a source for sheared flush (pre soldered) circuit boards? Any help is greatly appreciated 

Topic by lepow 7 years ago  |  last reply 7 years ago