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NISMOPC

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  1. Yea, the bottom two purple wires were soldered to the trace lines instead of the actual chips, but I would be interested to know the difference between my pink wire connected to the resistor vs. your small jumper wire on the chip. Apparently there is more than one way to skin the cat. EDIT: You can skin the cat more than one way ;-) Just found this post asking the same question and here is one reply: http://atariage.com/forums/topic/187900-strange-600xl-ram-expansion/
  2. Just did this same upgrade last week as well as a basic composite out mod and added an internal USB cable to install an internal SIO2PC FTDI board. Such a nice little unit. 64K Upgrade Composite and USB mod Composite mod (enclosed in RF Modulator case) Rear Composite A/V Out and USB Out Completed Unit
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