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			<title>Macintosh Classic: Internal Power Connector Pin-outs</title><body class="ac-gn-current-support">
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<h1 id="main-title">Macintosh Classic: Internal Power Connector Pin-outs</h1>
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<div id="intro-container"><div class="truncate"><div class="attr SYMPTOMS"><div class="attr TOPIC"><FONT SIZE=4><BR>
What are the pinouts for the internal power connector at location J12 on the<BR>
Macintosh Classic logic board?<BR>
<BR>
</FONT></div></div> <!--  attr Symptom  --></div> <!--  truncate --></div> <!--  intro-container --><div class="clear"> </div>
 </div>   <!-- abstract end -->
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Following are the pinouts:<BR>
<BR>
 Pin      Description<BR>
 ---      -----------<BR>
  1       +12 volts<BR>
  2       + 5 volts<BR>
  3       + 5 volts<BR>
  4       /VSYNC<BR>
  5       /HSYNC<BR>
  6       VIDOUT<BR>
  7       Sound<BR>
  8       -12 volts<BR>
  9       PWM (Brightness control signal)<BR>
 10       Ground<BR>
 11       Ground<BR>
 12       Ground<BR>
 13       Ground<BR>
 14       Ground<BR>
<BR>
<BR></div>
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<div class="mod-date">Published Date: Feb 18, 2012</div>
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