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<DIV><FONT color=#000000 size=2>Mine finally died so I've got to open it
up. Looking over the schematics it looks like the monitor supplies
isolated +5 VDC to the video card to drive the optoisolators.</FONT></DIV>
<DIV><FONT color=#000000 size=2>The manual shows for the
monochrome....</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT size=2>1 GND</FONT></DIV>
<DIV><FONT size=2>2 +5 (out)</FONT></DIV>
<DIV><FONT size=2>7 Video</FONT></DIV>
<DIV><FONT size=2>8 Hsync</FONT></DIV>
<DIV><FONT size=2>9 Vsync</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>And the video card schematic shows...</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>1 GND</FONT></DIV>
<DIV><FONT size=2>2 External Power</FONT></DIV>
<DIV><FONT size=2>3 IRED</FONT></DIV>
<DIV><FONT size=2>4 IGREEN</FONT></DIV>
<DIV><FONT size=2>5 IBLUE</FONT></DIV>
<DIV><FONT size=2>6 GND</FONT></DIV>
<DIV><FONT size=2>7 VIDEO</FONT></DIV>
<DIV><FONT size=2>8 HSYNC</FONT></DIV>
<DIV><FONT size=2>9 VSYNC</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT color=#000000 size=2>Page 7-11 of the 9100 service manual shows MJUMP
or CJUMP to feed the ISO-PWR supply line which power the opto
isolators.</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT size=2>I assume CJUMP is Color JUMPER?</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>So this leads to 2 questions.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Must the monochrome be optoisolated & power the Video card
with +5VDC or can I use the CJUMP & run a monochrome monitor?</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>What is Intensity voltage level/range normally on a
monitor? (I'd like to use a non Fluke monitor)</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Thanks,</FONT></DIV>
<DIV><FONT size=2>Kev</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV>
<H2><A name=PINOUTS_014>3.8) CGA - TTL</A></H2>
<P>(15.75 KHz - 320x200 or 640x200) DB-9 pin:
<P><PRE> 1 GND 6 Intensity
2 Unused 7 Unused
3 RED Video 8 H Sync TTL Positive
4 GREEN Video 9 V Sync TTL Positive
5 BLUE Video</PRE>
<HR>
<H2><A name=PINOUTS_015>3.9) Monochrome - TTL</A></H2>(18.43 KHz - 720x350) DB-9
pin:
<P><PRE> 1 GND 6 Intensity
2 Unused 7 Video
3 Unused 8 H Sync TTL Positive
4 Unused 9 V Sync TTL Negative
5 Unused</PRE></DIV>
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Received on Mon Jan 27 21:29:07 2003
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