DTK Computers

     Technical Information Sheet for PTM-1010 V2
     S=shorted, O=open               DIP switch 1=on 0=off

     S1:Display installation         S2:RAM Installed
	1-2 S  Monochrome               1-2 S 512k/1Mb
	2-3 S  Color                    2-3 S 640k
		
     S3:Base Memory Selection
	1-2 S  640k
	2-3 S  512k

     JP1:Turbo LED                   JP2:Wait state
	 <1> LED data                    S  Zero wait state
	 <2> Ground                      O  One wait state

     JP3:Hardware Turbo Switch       JP4:Reset Connector
	 <1> Ground                      <1> Ground
	 <2> Select pin                  <2> Reset

     J2:ROM Size                     J3:Speaker
	1-2 S  64k (27256x2)            <1> Data out
	2-3 S  32k (27128x2)            <2> Ground
					<3> Ground
     J4:Keyboard Lock                   <4> 5VDC
	<1> System power LED 
	<2> Not used                 J18:Battery Connector
	<3> Ground                       <1> 6VDC
	<4> Keyboard inhibit             <2> Not used
	<5> Ground                       <3> Not used
					 <4> Ground
     
     J20:Power Connector
	 <12>  Power Good            <6>  Ground
	 <11>  +5 VDC                <5>  Ground
	 <10>  +12 VDC               <4>  -5 VDC
	  <9>  -12 VDC               <3>  +5 VDC
	  <8>  Ground                <2>  +5 VDC
	  <7>  Ground                <1>  +5 VDC

     J24:Battery connector
	 <1> 6VDC
	 <2> Not used
	 <3> Ground
	 <4> Ground
     
     RAM Installation
		DRAM Type
	Option  Bank 0    Bank 1
	------  --------  --------
	512k    41256x18  none
	640k    41256x18  4164x18
	1MB     41256x18  41256x18