DENSITRON CORPORATION PCX510 Card Type Video card Video Chip Set Chips and Technology Maximum Video Memory Unidentified Data Bus 16-bit ISA Video Types Supported VGA,EGA, CGA, MDA Highest Resolution 640 x 480 Supported [Image] CONNECTIONS Function Label Function Label Serial port CN1 15-pin video analog CN2 video port USER CONFIGURABLE SETTINGS Function Label Position Vee reference select +5v J1 Pins 1 & 2 closed Vee reference select ground J1 Pins 2 & 3 closed Vee polarity select positive J2 Pins 1 & 2 closed Vee polarity select negative J2 Pins 2 & 3 closed » Factory configured - do not alter J3 Closed Shift lock select normal J4 Pins 2 & 3 closed Shift lock select inverted J4 Pins 1 & 2 closed Backlight control select normal J5 Pins 2 & 3 closed Backlight control select inverted J5 Pins 1 & 2 closed Serial port enabled J6 Closed Serial port disabled J6 Open » Factory configured - do not alter J8 Unidentified » Factory configured - do not alter J9 Unidentified » Factory configured - do not alter J10 Unidentified » Factory configured - do not alter J11 Unidentified SERIAL PORT SELECTION Setting J12 COM1 Open COM2 Pins 2 & 4 closed COM3 Pins 1 & 3 closed COM4 Pins 1 & 3, 2 & 4 closed IRQ SELECTION IRQ J7 IRQ3 Pins 7 & 8 closed IRQ4 Pins 9 & 10 closed IRQ6 Pins 11 & 12 closed IRQ7 Pins 1 & 2 closed IRQ10 Pins 3 & 4 closed IRQ11 Pins 5 & 6 closed None Open