HELP The cover came off the quartz crystal on my arduino nano i can see 2 connectors of some sort can i fix this without buying another one?
if not can i find a quartz crystal to replace it with?
( i didnt know where to put this post please dont hate)
Just glue it back on.
If it's still working, and you have the cover, try gluing it on.
If not, sorry to say, you are probably faced with replacing the nano.
If you have hot air equipment and rework skills, replacing a surface mount part like that is only a little bit tricky. If you haven't used hot air equipment before, replacing a single part in a tightly populated board is probably not the best place to start.
-br
If you don't already have the cap, find a crystal of comparable shape, and pop its cap open with a vise - very easy - and glue it back on the open crystal.
Yes i do have hot air equipment and rework skills but the arduino does not work and the case is in bad shape so i cannot glue back on is there anywhere online where i can buy a replacement crystal?
Yes, there are lots places you can buy a replacement from. But as we don't know which country you live in, it's difficult to advise you.
billroy:
If it's still working, and you have the cover, try gluing it on.If not, sorry to say, you are probably faced with replacing the nano.
If you have hot air equipment and rework skills, replacing a surface mount part like that is only a little bit tricky. If you haven't used hot air equipment before, replacing a single part in a tightly populated board is probably not the best place to start.
-br
The pictures of the Arduino Nano show a through-hole crystal.
The covers of such HC49 quartz crystals don't fall off in my experience, a hacksaw would be needed
Yes, through hole crystal not that hard to replace:
Lefty
A word of caution: switching 10amp is no small matter. You want to look into 2n3055's datasheet to make sure that it is up to it.
I would also look into what value-add, if any, that little capacitor is doing. It is forming an lc tank with your motor and can cause ringing.
dhenry:
A word of caution: switching 10amp is no small matter. You want to look into 2n3055's datasheet to make sure that it is up to it.I would also look into what value-add, if any, that little capacitor is doing. It is forming an lc tank with your motor and can cause ringing.
Dhenry, you need some coffee to wake up this morning, your input is posted in the wrong thread. 
Lefty
Arduino99:
HELP The cover came off the quartz crystal on my arduino nano i can see 2 connectors of some sort can i fix this without buying another one?
if not can i find a quartz crystal to replace it with?
( i didnt know where to put this post please dont hate)
OMG! I can't believe people are telling you to glue it back on!
You can buy a new resonator (it's a ceramic resonator, not a crystal)
You can buy a through hole crystal from Sparkfun or lots of other places. They are even easier to replace than an SMT part.
Use a fine point soldering iron to heat each pin alternately and let the old crystal fall out. If you're going to work with tiny boards, you need to know how to hand solder SMT devices. The key to perfect solder joints without bridges is good quality solder flux. Once you get the hang of it, you will end up being amazed how EASY it is to solder teeny tiny parts to a board.
Then buy yourself one of those magnifier headbands http://www.amazon.com/Donegan-OptiVisor-Headband-Magnifier-Magnification/dp/B0015IN8J6
... and buy a flux pen and a good 15 watt controlled temperature soldering pencil!
Take something broken like an old hard drive or something else with a board that has SMT parts. Practice on it. Remove existing parts and put them back on. It's easier than you think, and you will be glad that you learned to do it the RIGHT way.
(edited - mistaken about resonator vs crystal - a real Arduino uses a PTH crystal, not a resonator).
MarkT:
The pictures of the Arduino Nano show a through-hole crystal.The covers of such HC49 quartz crystals don't fall off in my experience, a hacksaw would be needed
I looked up the picture of an "Arduino Nano V3" (mistakenly thinking it was an R3). It's a Gravitech clone. You're right, a "real" Arduino Nano has a through-hole crystal (which can be easily replaced even with a 140 watt Weller gun!) (although I wouldn't suggest that a newb use such a large iron!).
As far as a 16 mhz PTH crystal.... Sparkfun has them: Crystal 16MHz - COM-00536 - SparkFun Electronics - a whopping 95 cents US.
i cannot glue back
In that event, I would clean out the quartz but keep the two pins: you can simply solder a new crystal to those two pins, much less risky than getting the old crystal out of the board.
dhenry:
i cannot glue back
In that event, I would clean out the quartz but keep the two pins: you can simply solder a new crystal to those two pins, much less risky than getting the old crystal out of the board.
A suggestion I can support.
I recall working in field service for a minicomputer manufacture in the 70s. The main PCB were these giant 15"X15" four layer affairs with large Vcc and ground planes in the middle two layers. It acted like such a good heat sink that it was nearly impossible to unsolder/suck out the Vcc and ground pins of any ICs that one would try to replace. We resorted to just cutting the old IC out leaving just stubs and soldering the replacement IC to the stubs. Looked ugly but always worked well. Luckily those old 74XXxx chip rarely failed once their initial factor burn-in test was passed.
Lefty
retrolefty:
I recall working in field service for a minicomputer manufacture in the 70s. The main PCB were these giant 15"X15" four layer affairs with large Vcc and ground planes in the middle two layers. It acted like such a good heat sink that it was nearly impossible to unsolder/suck out the Vcc and ground pins of any ICs that one would try to replace. We resorted to just cutting the old IC out leaving just stubs and soldering the replacement IC to the stubs. Looked ugly but always worked well. Luckily those old 74XXxx chip rarely failed once their initial factor burn-in test was passed.Lefty
In all seriousness... if it were my board I would make about a 1/4 inch diameter ball of molten solder with my Weller gun (plugged into a Variac to control the heat), use some liquid flux and heat both crystal pins at the same time with the board inverted until the old broken crystal dropped out.
Then I would take my little 15 watt iron and my vinyl tube with a short piece of Teflon tubing on the end, heat up each hole and blow a small puff to clear out the solder from the holes.
Lastly, drop in the new crystal, use the 15 watt iron and some liquid flux to solder it in, then wash the board off in a Tupperware bowl with some isopropyl alcohol in it.
Good as new. You wouldn't even be able to tell it was repaired.
Using the big Weller gun is the key to NOT wrecking the board. Rather than slowly heating (and burning) a multi layer board with a small iron, the gun provides a large RESERVE of heat that melts the solder fast and lets the part fall out without even barely warming the adjacent areas.
Ok if some people are having trouble here:
Its a arduino nano R3
I DO have a pencil Soldering iron with some soldering skills(if i cannot solder part i know someone who can) i have had some training on small parts(old circuit boards from damaged devices (xbox 360's mostly))
The Quartz crystal is a 16mhz SMD Quartz crystal (Cant find on sparkfun Or at maplin)
Im from the U.K
Hope some of this info helped
Arduino99:
Ok if some people are having trouble here:
Its a arduino nano R3
I DO have a pencil Soldering iron with some soldering skills(if i cannot solder part i know someone who can) i have had some training on small parts(old circuit boards from damaged devices (xbox 360's mostly))
The Quartz crystal is a 16mhz SMD Quartz crystal (Cant find on sparkfun Or at maplin)
Im from the U.K
Hope some of this info helped
Is there a question here?
Arduino99:
Ok if some people are having trouble here:
Its a arduino nano R3
I DO have a pencil Soldering iron with some soldering skills(if i cannot solder part i know someone who can) i have had some training on small parts(old circuit boards from damaged devices (xbox 360's mostly))
The Quartz crystal is a 16mhz SMD Quartz crystal (Cant find on sparkfun Or at maplin)
Im from the U.K
Hope some of this info helped
Try Farnell (whose web site seems to be down at the moment) or RS Components, both sell SMD crystals.
PS - rapidonline.com has a few as well.