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        <title>sanguinololu: i think something burned out?!</title>
        <description> I had to repair a crimp connector on my heatbed and when i connected everything and turned on the heatbed to print i realized that i had connected the things wrong! The smoke i saw coming from the board helped me to realize that....

Result: now when i turn the heat on to 60º for example it just keeps on going on and on...it just ignores the temperature i set, but it gives me the reading of the temperature on printrun like always.

I´m guessing i need to replace something on the sanguinololu (1.3a) . My guess would be the mosfet, but since i don´t see nothing burned i would like to ask if that its probably the component to replace and/or if there is some way to check if it is ok?

Cheers</description>
        <link>https://reprap.org/forum/read.php?4,235721,235721#msg-235721</link>
        <lastBuildDate>Fri, 10 Jul 2026 06:36:57 -0400</lastBuildDate>
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            <guid>https://reprap.org/forum/read.php?4,235721,237086#msg-237086</guid>
            <title>Re: sanguinololu: i think something burned out?!</title>
            <link>https://reprap.org/forum/read.php?4,235721,237086#msg-237086</link>
            <description><![CDATA[ scratch that part about the Panelolu. It was a error on the firmware. Now it indicates the temperature.]]></description>
            <dc:creator>pdesigns</dc:creator>
            <category>Reprappers</category>
            <pubDate>Sat, 17 Aug 2013 15:40:11 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?4,235721,237001#msg-237001</guid>
            <title>Re: sanguinololu: i think something burned out?!</title>
            <link>https://reprap.org/forum/read.php?4,235721,237001#msg-237001</link>
            <description><![CDATA[ I added two photos to show the way i connected it wrong. I only connected three pins instead of the four of them. <br />
<br />
Looking at it closer the middle pin of the Mosfet has a little black spot.<br />
<br />
When you say FET is it a short for Mosfet? How do i check the gate voltage/control pin? I guess i have to use the multimeter, my question is on what points? <br />
<br />
Sorry for all the questions..<br />
<br />
**also i just plugged my new panelolu2 and it does not show any info about a heatbed on the LCD. Don´t know if this info helps..<br />
<br />
Paulo]]></description>
            <dc:creator>pdesigns</dc:creator>
            <category>Reprappers</category>
            <pubDate>Sat, 17 Aug 2013 10:18:11 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?4,235721,236190#msg-236190</guid>
            <title>Re: sanguinololu: i think something burned out?!</title>
            <link>https://reprap.org/forum/read.php?4,235721,236190#msg-236190</link>
            <description><![CDATA[ Perhaps you could check the gate voltage/control pin voltage when you hit your set temp.  If it's turning off at the ATmega but not at the FET then you have a bad FET. If it's not turning off at the ATmega you might have a burnt out pin.  In what way were your connections wrong? Most HBP are not polar so connecting it backwards should have no effect. Was it shorted out completely? <br />
<br />
Bryan]]></description>
            <dc:creator>bryanandaimee</dc:creator>
            <category>Reprappers</category>
            <pubDate>Thu, 15 Aug 2013 12:18:05 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?4,235721,235721#msg-235721</guid>
            <title>sanguinololu: i think something burned out?!</title>
            <link>https://reprap.org/forum/read.php?4,235721,235721#msg-235721</link>
            <description><![CDATA[ I had to repair a crimp connector on my heatbed and when i connected everything and turned on the heatbed to print i realized that i had connected the things wrong! The smoke i saw coming from the board helped me to realize that....<br />
<br />
Result: now when i turn the heat on to 60º for example it just keeps on going on and on...it just ignores the temperature i set, but it gives me the reading of the temperature on printrun like always.<br />
<br />
I´m guessing i need to replace something on the sanguinololu (1.3a) . My guess would be the mosfet, but since i don´t see nothing burned i would like to ask if that its probably the component to replace and/or if there is some way to check if it is ok?<br />
<br />
Cheers]]></description>
            <dc:creator>pdesigns</dc:creator>
            <category>Reprappers</category>
            <pubDate>Wed, 14 Aug 2013 09:00:21 -0400</pubDate>
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