<![CDATA[SoliForum - 3D Printing Community — Did I burn out my Printboard?]]> https://www.soliforum.com/topic/4883/did-i-burn-out-my-printboard/ Wed, 05 Feb 2014 21:34:32 +0000 PunBB <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/48764/#p48764 Glad to hear you figured it out.

]]> Wed, 05 Feb 2014 21:34:32 +0000 https://www.soliforum.com/post/48764/#p48764 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/48759/#p48759 thats what they told you to do in the first place! lol

]]> Wed, 05 Feb 2014 21:20:40 +0000 https://www.soliforum.com/post/48759/#p48759 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/48743/#p48743 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

]]> Wed, 05 Feb 2014 19:05:08 +0000 https://www.soliforum.com/post/48743/#p48743 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/48700/#p48700 http://www.bildites.lv/images/od6z7qe0c5xomwiorzx.jpg

]]> Wed, 05 Feb 2014 14:09:41 +0000 https://www.soliforum.com/post/48700/#p48700 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/48532/#p48532 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?

]]> Mon, 03 Feb 2014 09:56:06 +0000 https://www.soliforum.com/post/48532/#p48532 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/44844/#p44844 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).

]]> Fri, 20 Dec 2013 16:35:43 +0000 https://www.soliforum.com/post/44844/#p44844 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/44826/#p44826 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).

]]> Fri, 20 Dec 2013 11:35:23 +0000 https://www.soliforum.com/post/44826/#p44826 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/44825/#p44825 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).

]]> Fri, 20 Dec 2013 11:28:55 +0000 https://www.soliforum.com/post/44825/#p44825 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/44819/#p44819 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

]]> Fri, 20 Dec 2013 09:10:45 +0000 https://www.soliforum.com/post/44819/#p44819 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/44798/#p44798 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.

]]> Thu, 19 Dec 2013 23:43:32 +0000 https://www.soliforum.com/post/44798/#p44798 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/44793/#p44793 Guys.....?

]]> Thu, 19 Dec 2013 23:36:32 +0000 https://www.soliforum.com/post/44793/#p44793 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/44610/#p44610 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

]]> Wed, 18 Dec 2013 13:48:08 +0000 https://www.soliforum.com/post/44610/#p44610 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/44518/#p44518 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.

]]> Tue, 17 Dec 2013 16:05:40 +0000 https://www.soliforum.com/post/44518/#p44518 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/44516/#p44516 2n2r5 wrote:

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

+1

]]> Tue, 17 Dec 2013 15:39:41 +0000 https://www.soliforum.com/post/44516/#p44516 <![CDATA[Re: Did I burn out my Printboard?]]> https://www.soliforum.com/post/44514/#p44514 Check your thermistor (blue) connection on the hot end. I think the wires are loose. It is definitely an intermittent connection.

]]> Tue, 17 Dec 2013 15:36:28 +0000 https://www.soliforum.com/post/44514/#p44514