Re: Update: Help needed with a 6809 Pod Problem, 9010A

From: Mark Hooks <markhooks_at_earthlink.net>
Date: Tue Feb 22 2005 - 10:15:02 EST

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<DIV><FONT face=Arial size=2>Dave,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Schematics&nbsp;would be great! My email address is
<A href="mailto:markhooks@earthlink.net">markhooks@earthlink.net</A>.&nbsp;
I'm&nbsp;speculating my unit is&nbsp;very early production.&nbsp; The serial
number ends in 5003 (perhaps the third one built?).&nbsp; I'm considering
modifying mine to be consistent with the schematics.&nbsp; It just doesn't seem
to have the connections needed to support the 6809E processor.&nbsp; The good
news is that all the parts are there to make it work.&nbsp; I just need to get
out the spool of jumper wire and make it happen.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Mark</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV
  style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
  <A title=dfish_1@comcast.net href="mailto:dfish_1@comcast.net">David Fish</A>
  </DIV>
  <DIV style="FONT: 10pt arial"><B>To:</B> <A title=Techtoolslist@flippers.com
  href="mailto:Techtoolslist@flippers.com">Techtoolslist</A> </DIV>
  <DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, February 22, 2005 5:20
  AM</DIV>
  <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Techtoolslist] Update: Help
  needed with a 6809 Pod Problem, 9010A</DIV>
  <DIV><BR></DIV>
  <DIV><FONT face=Arial size=2>
  <DIV><FONT face=Arial size=2>Mark,</FONT></DIV>
  <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
  <DIV><FONT face=Arial size=2>&nbsp;My schematic shows s1-3 and s1-2 with one
  side of each connected together and to the input pin 4 of AND gate U16. The
  other side of S1-3 goes to the output side of the tri-state buffer U10 pin 8.
  The other pin of S1-2 goes to the input side of the same buffer U10 pin
  9.</FONT></DIV>
  <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
  <DIV><FONT face=Arial size=2>I'll bring the manual to work and scan the
  schematic sheets. I'll try to get them off to you tonight. What's your email
  address?</FONT></DIV>
  <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
  <DIV><FONT face=Arial size=2>Dave</FONT></DIV></FONT></DIV>
  <BLOCKQUOTE
  style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
    <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
    <DIV
    style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
    <A title=markhooks@earthlink.net href="mailto:markhooks@earthlink.net">Mark
    Hooks</A> </DIV>
    <DIV style="FONT: 10pt arial"><B>To:</B> <A title=Techtoolslist@flippers.com
    href="mailto:Techtoolslist@flippers.com">Techtoolslist</A> </DIV>
    <DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, February 21, 2005 9:09
    PM</DIV>
    <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Techtoolslist] Update:
    Help needed with a 6809 Pod Problem, 9010A</DIV>
    <DIV><BR></DIV>
    <DIV><FONT face=Arial size=2>Upon further examination it appears that dip
    switches 2 and 3 (the ones that switch&nbsp;over&nbsp;from&nbsp;the 6809
    versus the 6809E) are not connected to anything.&nbsp; I wonder if there was
    a re-design of the pod during production?&nbsp; My boards have a 1982 date
    on them, revision B-1.</FONT></DIV>
    <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
    <DIV><FONT face=Arial size=2>Mark Hooks</FONT></DIV>
    <BLOCKQUOTE
    style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
      <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
      <DIV
      style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
      <A title=markhooks@earthlink.net
      href="mailto:markhooks@earthlink.net">Mark Hooks</A> </DIV>
      <DIV style="FONT: 10pt arial"><B>To:</B> <A
      title=Techtoolslist@flippers.com
      href="mailto:Techtoolslist@flippers.com">Techtoolslist</A> </DIV>
      <DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, February 21, 2005 8:33
      PM</DIV>
      <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Techtoolslist] Update:
      Help needed with a 6809 Pod Problem, 9010A</DIV>
      <DIV><BR></DIV>
      <DIV><FONT face=Arial size=2>I've made some progress on this
      problem.&nbsp; I've manage to track down a bad diode at CR1.&nbsp; I now
      get the input on EXTAL through U22 as it should.&nbsp; I'm still getting
      the pod timeout -attempting reset error though. It seems I'm not getting
      the E clock signal at pin 34.</FONT></DIV>
      <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
      <DIV><FONT face=Arial size=2>I've been comparing the schematics to my unit
      and they don't match. Is there more than one schematic available?&nbsp;
      The one I have is the October 1982 version. I hate working blind without
      schematics.</FONT></DIV>
      <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
      <DIV><FONT face=Arial size=2>Mark Hooks</FONT></DIV>
      <BLOCKQUOTE
      style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
        <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
        <DIV
        style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
        <A title=markhooks@earthlink.net
        href="mailto:markhooks@earthlink.net">Mark Hooks</A> </DIV>
        <DIV style="FONT: 10pt arial"><B>To:</B> <A
        title=Techtoolslist@flippers.com
        href="mailto:Techtoolslist@flippers.com">Techtoolslist</A> </DIV>
        <DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, February 13, 2005
        8:04 PM</DIV>
        <DIV style="FONT: 10pt arial"><B>Subject:</B> [Techtoolslist] Help
        needed with a 6809 Pod Problem, 9010A</DIV>
        <DIV><BR></DIV>
        <DIV><FONT face=Arial size=2>I'm at an impasse trying to fix
        my&nbsp;broken 6809 pod. I've scoured the techtoolslist archive and have
        not found a solution. I'm getting the pod timeout -attempting reset
        error message&nbsp;when using a 6809E processor.&nbsp; Here's what I
        know:&nbsp; the pod works fine with a regular 6809, the dip switches are
        set right for the 6809E, the 6809E processor I'm using works fine in a
        working star wars board, the&nbsp;clock source at the input to U22 looks
        good on the scope, the U22 enable line is high,but the u22 output is
        stuck low. Therefore, there is no input on the processor EXTAL.&nbsp;
        </FONT></DIV>
        <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
        <DIV><FONT face=Arial size=2>I think this is the problem.&nbsp; Where do
        I go from here, replace U22?&nbsp; Before I go hacking around on a rare
        pod, I want to make sure I'm on the right track.</FONT></DIV>
        <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
        <DIV><FONT face=Arial size=2>Mark Hooks<BR>A.K.A.
        Pinmania<BR>850-894-8103</FONT></DIV>
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Received on Tue Feb 22 07:16:24 2005

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