MICRO ENHANCER EV-657B (VER.1.0) video card Settings and Configuration

Card Type	Video card
Video Chip Set	Unidentified
Highest Resolution Supported	720 x 348
Maximum Video Memory	256 KB
Data Bus	8-bit ISA
Video Types Supported	EGA

CONNECTIONS
Function	Label	Function	Label
RCA jack	J1	9-pin digital video port	J3
RCA jack	J2	Feature connector	J4

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	W1	Pins 2 & 3 closed
»	I/O port address selected at 3XX	W3	Pins 2 & 3 closed
	I/O port address selected at 2XX	W3	Pins 1 & 2 closed
»	Factory configured - do not alter	W4	N/A
»	Factory configured - do not alter	W7	Pins 1 & 2 closed
»	Non-Maskable Interrupt selected (NMI)	W10	Pins 1 & 2 closed
	Interrupt request selected (IRQ)	W10	Pins 2 & 3 closed
»	CRTC Vertical interrupt enabled	W12/G	Closed
	CRTC Vertical interrupt disabled	W12/G	Open
»	Operation in PC-XT slot 8 disabled	W13	Open
	Operation in PC-XT slot 8 enabled	W13	Closed
»	Emulation disabled	SW1/5	Off
	Emulation enabled	SW1/5	On
»	Factory configured - do not alter	SW1/6	Off

INTERRUPT SELECTION
Setting	W12/A	W12/B	W12/C	W12/D	W12/E	W12/F
2	Open	Open	Open	Open	Open	Closed
3	Closed	Open	Open	Open	Open	Open
4	Open	Closed	Open	Open	Open	Open
5	Open	Open	Closed	Open	Open	Open
6	Open	Open	Open	Closed	Open	Open
7	Open	Open	Open	Open	Closed	Open

BOOT-UP MODE SELECTION
Monitor		Mode & Format	SW1/1	SW1/2	SW1/3	SW1/4	SW1/7	SW1/8
»	Enhanced	EGA 80x25	Off	On	On	Off	On	On
	Enhanced	Color 80x25	On	On	On	Off	On	On
	Color	Color 80x25	Off	Off	Off	On	On	Off
	Color	Color 40x25	On	Off	Off	On	On	Off
	Monochrome	Monochrome	Off	Off	On	Off	Off	Off