Re: Star Wars CPU D3 short

I tried applying 5 volts to the shorted data line and it blew the short away. It didn't last long enough to heat anything up, so the cause of the short is still a mystery. I still have some more work to do on the board, but at least the short is gone. That's a handy trick, thanks!

Mark Hooks
  ----- Original Message -----
  From: Jess Askey
  To: vectorlist@vectorlist.org
  Sent: Friday, June 10, 2005 12:35 AM
  Subject: Re: VECTOR: Star Wars CPU D3 short

  Or, just to take this a bit farther. Use one of those laser temperature probes to check the temp of all the IC's connected to D3. Im not sure how accurate they are but it would sure save a small blister. It would actually be interesting to see a specific IC jump in temp due to that.

  Electronicamuse@aol.com wrote:
    In a message dated 6/9/2005 5:33:46 P.M. Eastern Standard Time, markhooks@earthlink.net writes:
      Now that's a good idea. Tie D3 to +5 volts and feel for the heat, correct?
    Yep, I usually just use a clip lead to the end of a capacitor if available, then have a pointy tip on the end of the wire and put it on convenient point of the note. It may get really hot, so wear glasses and smell for the hot chip before burning the piss out of your hand.

    Dave

    +++++Ask me about Retrocade 30-in-1 MultiPac kits for Midway Pac Man and Ms Pac Man boards and same kit already attached to a new JAMMA PCB. Also we now have purchased the rights to WG6100 (Tempest, etc) new deflection boards and HVU boards. Also HVU boards for Amplifone (Star Wars). These are version 2 with no extra wiring or mods necessary. Ask about Star Wars overlays and new cabinets for Midway cocktail, upright, mini, Dragon's Lair, Williams, Golden Tee Fore, and Ultra-MAME++++

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Received on Fri Jun 10 06:27:23 2005