<![CDATA[SoliForum - 3D Printing Community — Did I burn out my Printboard?]]> 2014-02-05T21:34:32Z PunBB https://www.soliforum.com/topic/4883/did-i-burn-out-my-printboard/ <![CDATA[Re: Did I burn out my Printboard?]]> Glad to hear you figured it out.

]]> https://www.soliforum.com/user/2291/ 2014-02-05T21:34:32Z https://www.soliforum.com/post/48764/#p48764 <![CDATA[Re: Did I burn out my Printboard?]]> thats what they told you to do in the first place! lol

]]> https://www.soliforum.com/user/2211/ 2014-02-05T21:20:40Z https://www.soliforum.com/post/48759/#p48759 <![CDATA[Re: Did I burn out my Printboard?]]> Problem solved.
There was bad contact between 2 connectors from thermistor and from plate wires. I ringed all wires and found that one wire on the white connector from board side has not stable connection. smile

]]> https://www.soliforum.com/user/2599/ 2014-02-05T19:05:08Z https://www.soliforum.com/post/48743/#p48743 <![CDATA[Re: Did I burn out my Printboard?]]> http://www.bildites.lv/images/od6z7qe0c5xomwiorzx.jpg

]]> https://www.soliforum.com/user/2599/ 2014-02-05T14:09:41Z https://www.soliforum.com/post/48700/#p48700 <![CDATA[Re: Did I burn out my Printboard?]]> Well, I unmounted thermistor, checked wires and didn' t find any intermittend connecions.. Then added it back and printer started working normally, but now I see again some problems.. Tried to print 1 detail and as I see there is stable temperature and in one moment temp. goes down for 1 second and then goes back, but printer is stopped due to 999 temp. error. Seems like signal loss from temp sensor or interrupted connection.. what can you advice? Change thermistor? Or where else can be the problem? Somewhere in wires?

]]> https://www.soliforum.com/user/2599/ 2014-02-03T09:56:06Z https://www.soliforum.com/post/48532/#p48532 <![CDATA[Re: Did I burn out my Printboard?]]> BTW, did you see the sticky topic:
http://www.soliforum.com/topic/636/hot- … to-repair/

spapadim wrote:

Again, no electornics expert, but thermistor is just resistor whose value varies with temperature. So it seems to me not much you can check: continuity, shorts, and maybe value (should be order of 100K in room temp). Thing is, your problem may be intermittent (so unless you check when it happens, or keep the multimeter clipped on... may not see anything).

]]> https://www.soliforum.com/user/1993/ 2013-12-20T16:35:43Z https://www.soliforum.com/post/44844/#p44844 <![CDATA[Re: Did I burn out my Printboard?]]> Accessdenied wrote:

Extruder always on fan pins. There goes white fan connection with "F" on it.

----
Well, here is a photo with my extruder thermistor, what you think about it? ))
http://www.bildites.lv/images/36hfvijvmeva0jo9g3e.jpg

Hm, those pins are connected straight to the 12V input. Strange.

Visually, thermistor looks fine, but doesn't hurt to check. Might also be the blue connectors (I accidentally pulled one wire out once, while fiddling with hotend, but could barely see it was out... then, again, it was a connector I had inserted with a jeweler's screwdriver, not the proper IDC insertion tool).

]]> https://www.soliforum.com/user/1993/ 2013-12-20T11:35:23Z https://www.soliforum.com/post/44826/#p44826 <![CDATA[Re: Did I burn out my Printboard?]]> Again, no electornics expert, but thermistor is just resistor whose value varies with temperature. So it seems to me not much you can check: continuity, shorts, and maybe value (should be order of 100K in room temp). Thing is, your problem may be intermittent (so unless you check when it happens, or keep the multimeter clipped on... may not see anything).

]]> https://www.soliforum.com/user/1993/ 2013-12-20T11:28:55Z https://www.soliforum.com/post/44825/#p44825 <![CDATA[Re: Did I burn out my Printboard?]]> wardjr wrote:
Accessdenied wrote:

Guys.....?

It's like a ghost town in here isn't it?
I wish I could help more but I have no idea how to go about testing a thermistor.  The best advice I can give is make sure there are no shorts or loose connections.

Unfortunatly, yes. Seems that all I can do is try to replace this thermistor and see what happens... smile

]]> https://www.soliforum.com/user/2599/ 2013-12-20T09:10:45Z https://www.soliforum.com/post/44819/#p44819 <![CDATA[Re: Did I burn out my Printboard?]]> Accessdenied wrote:

Guys.....?

It's like a ghost town in here isn't it?
I wish I could help more but I have no idea how to go about testing a thermistor.  The best advice I can give is make sure there are no shorts or loose connections.

]]> https://www.soliforum.com/user/2291/ 2013-12-19T23:43:32Z https://www.soliforum.com/post/44798/#p44798 <![CDATA[Re: Did I burn out my Printboard?]]> Guys.....?

]]> https://www.soliforum.com/user/2599/ 2013-12-19T23:36:32Z https://www.soliforum.com/post/44793/#p44793 <![CDATA[Re: Did I burn out my Printboard?]]> spapadim wrote:
Accessdenied wrote:

2 pins for extruder cooler - I measured there 5V.

You mean the Printrboard PWM fan pin?  That should be 12V (unless running at ~40% duty cycle).  Or the extruder (always-on) fan pins?  Those should always be 12V too.  So you probably shorted something else.

In any case, I don't think the short is relevant anymore, completely agree that it sounds like the thermistor wire.

Extruder always on fan pins. There goes white fan connection with "F" on it.

----
Well, here is a photo with my extruder thermistor, what you think about it? ))
http://www.bildites.lv/images/36hfvijvmeva0jo9g3e.jpg

]]> https://www.soliforum.com/user/2599/ 2013-12-18T13:48:08Z https://www.soliforum.com/post/44610/#p44610 <![CDATA[Re: Did I burn out my Printboard?]]> Accessdenied wrote:

2 pins for extruder cooler - I measured there 5V.

You mean the Printrboard PWM fan pin?  That should be 12V (unless running at ~40% duty cycle).  Or the extruder (always-on) fan pins?  Those should always be 12V too.  So you probably shorted something else.

In any case, I don't think the short is relevant anymore, completely agree that it sounds like the thermistor wire.

]]> https://www.soliforum.com/user/1993/ 2013-12-17T16:05:40Z https://www.soliforum.com/post/44518/#p44518 <![CDATA[Re: Did I burn out my Printboard?]]> 2n2r5 wrote:

Check your thermistor (blue) connection on the hot end. I think the wires are loose. It is definitely an intermittent connection.

+1

]]> https://www.soliforum.com/user/2291/ 2013-12-17T15:39:41Z https://www.soliforum.com/post/44516/#p44516 <![CDATA[Re: Did I burn out my Printboard?]]> Check your thermistor (blue) connection on the hot end. I think the wires are loose. It is definitely an intermittent connection.

]]> https://www.soliforum.com/user/1906/ 2013-12-17T15:36:28Z https://www.soliforum.com/post/44514/#p44514