TANDON CORPORATION MODEL 189370/199720 Processor 80286 Processor Speed 6/8/10MHz Chip Set Unidentified Maximum Onboard Memory 3MB (2.5MB on external memory card) Cache None BIOS Unidentified Dimensions 355mm x 305mm I/O Options Serial port, parallel port NPU Options 80287 [Image] CONNECTIONS Function Label Function Label Serial port CN1 Parallel port CN2 USER CONFIGURABLE SETTINGS Setting Label Position Signal select DTR driven JP1 Pins 1 & 2 closed Signal select DTR true JP1 Pins 2 & 3 closed Signal select DTR false JP1 Open Signal select RTS driven JP2 Pins 1 & 2 closed Signal select RTS true JP2 Pins 2 & 3 closed Signal select RTS false JP2 Open Signal select DCD driven JP3 Pins 1 & 2 closed Signal select DCD true JP3 Pins 2 & 3 closed Signal select DCD false JP3 Open Signal select DSR driven JP4 Pins 1 & 2 closed Signal select DSR true JP4 Pins 2 & 3 closed Signal select DSR false JP4 Open Signal select CTS driven JP5 Pins 1 & 2 closed Signal select CTS true JP5 Pins 2 & 3 closed Signal select CTS false JP5 Open » Factory configured - do not alter JP6 Open (189370-001, 002) » Factory configured - do not alter JP6 Open (189370-004, 005/199270) » Factory configured - do not alter JP7 Open (189370-001, 002) » Factory configured - do not alter JP7 Pins 1 & 2 (189370-004, 005/199270 closed » Factory configured - do not alter JP8 Pins 2 & 3 (189370-001, 002) closed » Factory configured - do not alter JP8 Pins 1 & 2 (189370-004, 005/199270) closed » Factory configured - do not alter JP9 Pins 2 & 3 (189370-001, 002) closed » Factory configured - do not alter JP9 Pins 1 & 2 (189370-004, 005/199270) closed » Factory configured - do not alter JP10 Pins 1 & 2 (189370-001, 002) closed » Factory configured - do not alter JP10 Open (189370-004, 005/199270) » Factory configured - do not alter JP11 Pins 1 & 2 (189370-001, 002) closed » Factory configured - do not alter JP11 Pins 1 & 2 (189370-004, 005/199270) closed » Factory configured - do not alter JP12 Open (189370-001, 002) » Factory configured - do not alter JP12 Open (189370-004, 005/199270) » Factory configured - do not alter JP13 Pins 1 & 2 (189370-001, 002) closed » Factory configured - do not alter JP13 Pins 1 & 2 (189370-004, 005/199270) closed » Factory configured - do not alter JP14 Pins 2 & 3 (189370-001, 002) closed » Factory configured - do not alter JP14 Pins 1 & 2 (189370-004, 005/199270) closed 0 wait state enabled (model 199720 SW1/1 On only) 0 wait state disabled (model SW1/1 Off 199720 only) » Factory configured - do not alter SW1/2 N/A » Video type select 80 characters SW1/3 Off » Factory configured - do not alter SW1/4 Off USER CONFIGURABLE SETTINGS (CON’T) Setting Label Position » Factory configured - do not alter SW1/5 N/A » Factory configured - do not alter SW1/6 N/A » Factory configured - do not alter SW1/7 N/A 512KB - 640KB RAM address enabled SW1/8 On 512KB - 640KB RAM address SW1/8 Off disabled DRAM Note: The orientation and chip sizes are unidentified. [Image] DRAM Size Bank 0 Bank 1 Bank 2 Bank 3 512KB (18) 41256 None None None 1MB (18) 41256 (18) 41256 None None 1.5MB (18) 41256 (18) 41256 (18) 41256 None 2MB (18) 41256 (18) 41256 (18) 41256 (18) 41256 DRAM SWITCH Memory Memory after SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 before 512-640KB 2560-2688KB Off Off Off On Off 1024KB 3072KB Off Off Off On On 2560-2688KB 4608-4736KB Off Off On On Off 3072KB 5120KB Off Off On On On 4608-4736KB 6656-6784KB Off On Off On Off 5120KB 7168KB Off On Off On On 656-6784KB 8704-8832KB Off On On On Off 7168KB 9216KB Off On On On On DRAM SWITCH (CON’T) Memory before Memory after SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 8704-8832KB 10752-10880KB On Off Off On Off 9216KB 11264KB On Off Off On On 10752-10880KB 12800-12928KB On Off On On Off 11264KB 13312KB On Off On On On 12800-12928KB 14848-14976KB On On Off On Off 13312KB 15360KB On On Off On On 14848-14976KB 15744KB On On On On Off 15360KB 15744KB On On On On On MISCELLANEOUS TECHNICAL NOTE The location of pin 1 is unidentified.