Re: Restoring IIGS with Transwarp IIGS --> identification if loose IC

[Rubywand <rubywand@swbell.net>]

Deacon Blue writes ...
> 
> Hello!
> 
> I'm restoring a IIGS with a TranswarpGS board inside.
> 
> I've little knowledge on the TWGS board myself so I would appreciate some
> help here to get it up & running. The board is marked 'Transwarp GS"
> Copyright 1989 - Applied Engineering REV    TWGS1.5W8S.
> 
> I found a blank, four legged square IC lying loose on the mainboard-base
> which may belong the the TWGS, but I'm not sure on this.
> 
> It has the following print:  "28.000Mhz,  ECS22100,  Japan."
> 
> I've been able to recognise a square connector on the right-side, top corner
> of the TWGS-board.  If the loose chip is meant to sit here,  how should the
> IC be aligned, vertical or horisontal to the onprinted text?
> 
 ....

     The square chip is an oscillator module. 28MHz --> 7MHz operation.
According to an article by John Link, the oscillator plugs into the connector
in the upper right. The square corner of the chip identifies Pin 1. The article
says the chip should be oriented with the square corner at the top left ...

square corner ---> 1    3

                   2    4



Rubywand