sandersAssociates :: graphic8 :: H-82-0176 Vistagraphic 3000 Graphic 8 Series 8000 Operation and Maintenance Manual Feb1983 . -E3 . 128K Sl-1 ON Sl-2 thruSl-5 OFF* Sl-1 OFF Sl-2 thruSl-5 OFF* E2-E3 E1-E2 *These switch positions allow access to all available memory. To maskout undesired memory blocks, set corresponding switch to ON. For the G2 and G4 conditions of part number 1089724, lift jumper from U13-12 to U16-12. For part number 5809944 (figure 3-5), confirm that jumpers areinstalled and that memory boundary switches Sl-1 through Sl-8 are setas shown in table 3-10 for all memory
sandersAssociates :: graphic8 :: H-82-0176 Vistagraphic 3000 Graphic 8 Series 8000 Operation and Maintenance Manual Feb1983 . -E3 . 128K Sl-1 ON Sl-2 thruSl-5 OFF* Sl-1 OFF Sl-2 thruSl-5 OFF* E2-E3 E1-E2 *These switch positions allow access to all available memory. To maskout undesired memory blocks, set corresponding switch to ON. For the G2 and G4 conditions of part number 1089724, lift jumper from U13-12 to U16-12. For part number 5809944 (figure 3-5), confirm that jumpers areinstalled and that memory boundary switches Sl-1 through Sl-8 are setas shown in table 3-10 for all memory configurations. Confirm thatbank swap switches S2-1 through S2-4, page size switches S3-1 throughS3-4, and mask area switches S4-1 through S4-8 are set as shown intable 3-11. i Change 3 3-24A/(3-24B blank) Table 3-10. Large Refresh Memory Switches and Jumpers, Part Number 5809944 MEMORY CONFIGURATION All (64K, 128K, 192K,256K) SWITCH SETTINGS Sl-1SI-2Sl-3Sl-4Sl-5Sl-6Sl-7Sl-8 OPEN CLOSED CLOSED CLOSED OPEN CLOSED CLOSED OPEN JUMPER CONNECTIONS E5 to E4E13 to E14E15 to E19E7 to EllE10 to E8E2 to E3 its - Elf IP 6 E7- En-. Figure 3-5. Large Refresh Memory .Switch and Jumper Locations Change 3 3-25 Tabie 3-li. Large Refresh Memory Bank Swap,-Page- Size, ? and MaskArea Switch Settings, Part No• 5809944 SWAP- DESCRIPTION BANK SWAP (SWITCH 82.) .S2-1 S2-2 No swap (normal configuration) Swap A and B , swap C and D Swap C and D Swap- A and D Swap A and C Swap A and C, swap B and 0 Swap B and C Swap A and B Open Closed Open Closed Open Closed Open. Closed . Open-ClosedClosed-Open -OpenClosedClosedOpen PAGE SIZE PAGE SIZE (SWITCH S3) ... ? S3-1 S3-2 4K words {normal)8K words16K words Closed Open Open Closed ClosedOpen MEMORY SIZE S4~i MASK. AREAS (SWITCH 84)S4-2 S4-3 S4-4 S4~5 S2-3 Open Closed Closed Closed. Closed Open Open Open S3-3 Closed ClosedOpen S2-4 OpenOpenOpenOpenOpenOpenOpenOpen 33-4 Closed OpenOpen S4-6 S4-7 S4-8 64K words(128K bytes) 128K words(256K bytes) 192K words(384K
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Photo credit: © The Reading Room / Alamy / Afripics
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Keywords: ., bookcentury1900, bookdecade1, booksubjectcolor, booksubjectmemory
