TANDY  (260-6014)  Settings                 Faxback Doc. # 2052

Model 12 to 6000 Upgrade 

8 MHz 68000 CPU board 

E1-E2    Selects 15.5 usec refresh timing
E6-E7    Sets "PCLOCK" to 8 MHz

512K/1MEG 68000 RAM board with 512K 

E1-E2    Select 512K RAM size
E5-E6    Along with S1 and E1-E2 maps RAM at address 000000 to 07FFFF
E7-E8    Configures A19 to select RAS multiplexor
E12-E14  Configures for 150 ns RAM (Normal configuration)
E13-E14  Configures for 200 ns RAM
S1 position 2 should be ON all others OFF

512K/1MEG 68000 RAM board with 1MEG 

E2-E3    Select 1MEG RAM size
E5-E6    Along with S1 and E2-E3 maps RAM at address 000000 to 0FFFFF
E7-E8    Configures A19 to select RAS multiplexor
E12-E14  Configures for 150 ns RAM (Normal configuration)
E13-E14  Configures for 200 ns RAM
S1 position 2 should be ON, all others should be OFF

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There are hardware modifications for this board- 12/16B:035, 12/16B:036
                                                 12/16B:037, 12/16B:038
                                                 16:019, 16:020, 16:021

Contains an 8MHz 68000 processor & a 1meg ram bd. (26-6015) w/ 512k installed
Service Center installation ONLY