MBC-18SX Motherboard Settings and Configuration

SANYO BUSINESS SYSTEMS CORPORATION

MBC-18SX

Processor
80386SX
Processor Speed
16MHz
Chip Set
Zymos
Max. Onboard DRAM
2MB
Cache
None
BIOS
Sanyo
Dimensions
332mm x 136mm
I/O Options
Serial port, parallel port, floppy drive interface, IDE interface
NPU Options
80387SX

CONNECTIONS
Purpose
Location
Purpose
Location
Serial port
CN1
Speaker & I/O LED
CN10
Parallel port
CN2
Keylock
CN11
Floppy drive interface
CN3
External batteries
CN12 & CN13
IDE interface
CN7
Reset switch
SW1
Keyboard connector
CN9

Note:The purpose of connectors CN5 & CN8 is unidentified.

USER CONFIGURABLE SETTINGS
Function
Jumper/Switch
Position
»
Serial port interrupt select primary
JP1
pins 2 & 3 closed

Serial port interrupt select secondary
JP1
pins 1 & 2 closed
»
Parallel port interrupt select primary
JP2
pins 2 & 3 closed

Parallel port interrupt select secondary
JP2
pins 1 & 2 closed
»
Factory configured - do not alter
JP3
pins 1 & 2 closed
»
Factory configured - do not alter
JP4
Open
»
IDE interface enabled
JP5
pins 1 & 2 closed
»
IDE interface disabled
JP5
pins 2 & 3 closed
»
Factory configured - do not alter
JP6
pins 2 & 3 closed
»
Factory configured - do not alter
JP7
Open
»
Bus mouse address select primary
JP12
pins 2 & 3 closed

Bus mouse address select secondary
JP12
pins 1 & 2 closed
»
Factory configured - do not alter
JP13
pins 1 & 2 closed
»
Factory configured - do not alter
JP14
pins 1 & 2 closed
»
Factory configured - do not alter
JP15
pins 1 & 2 closed
»
Factory configured - do not alter
JP16
pins 1 & 2 closed
»
Factory configured - do not alter
JP17
pins 2 & 3 closed
»
Factory configured - do not alter
JP18
pins 2 & 3 closed
»
Factory configured - do not alter
JP19
pins 1 & 2 closed
»
IDE interrupt select SLVAC disabled
JP20
pins 1 & 2 closed

IDE interrupt select SLVAC enabled
JP20
pins 2 & 3 closed
»
Factory configured - do not alter
DPS1/1
Off
»
Parallel port address select primary
DPS1/2
On

Parallel port address select secondary
DPS1/2
Off
»
Serial port address select primary
DPS1/3
On

Serial port address select secondary
DPS1/3
Off
»
Floppy drive interface address select primary
DPS1/4
On

Floppy drive interface address select secondary
DPS1/4
Off
»
Monitor type select color
DPS1/5
On

Monitor type select monochrome
DPS1/5
Off
»
CPU speed select fast
DPS1/6
On

CPU speed select slow
DPS1/6
Off
DRAM CONFIGURATION
Size
Bank 0
P-0
Bank 1
P-1
1MB
(8) 44256
(4) 41256
NONE
NONE
2MB
(8) 44256
(4) 41256
(8) 44256
(4) 41256
MOUSE IRQ CONFIGURATION
IRQ
JP8
JP9
JP10
JP11
IRQ3
Open
Open
Closed
Open
IRQ4
Open
Closed
Open
Open
IRQ5
Closed
Open
Open
Open
IRQ9
Open
Open
Open
Closed

MBC-18SX Motherboard Settings and Configuration

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Processor	80386SX
Processor Speed	16MHz
Chip Set	Zymos
Max. Onboard DRAM	2MB
Cache	None
BIOS	Sanyo
Dimensions	332mm x 136mm
I/O Options	Serial port, parallel port, floppy drive interface, IDE interface
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port	CN1	Speaker & I/O LED	CN10
Parallel port	CN2	Keylock	CN11
Floppy drive interface	CN3	External batteries	CN12 & CN13
IDE interface	CN7	Reset switch	SW1
Keyboard connector	CN9
Note:The purpose of connectors CN5 & CN8 is unidentified.

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	Serial port interrupt select primary	JP1	pins 2 & 3 closed
	Serial port interrupt select secondary	JP1	pins 1 & 2 closed
»	Parallel port interrupt select primary	JP2	pins 2 & 3 closed
	Parallel port interrupt select secondary	JP2	pins 1 & 2 closed
»	Factory configured - do not alter	JP3	pins 1 & 2 closed
»	Factory configured - do not alter	JP4	Open
»	IDE interface enabled	JP5	pins 1 & 2 closed
»	IDE interface disabled	JP5	pins 2 & 3 closed
»	Factory configured - do not alter	JP6	pins 2 & 3 closed
»	Factory configured - do not alter	JP7	Open
»	Bus mouse address select primary	JP12	pins 2 & 3 closed
	Bus mouse address select secondary	JP12	pins 1 & 2 closed
»	Factory configured - do not alter	JP13	pins 1 & 2 closed
»	Factory configured - do not alter	JP14	pins 1 & 2 closed
»	Factory configured - do not alter	JP15	pins 1 & 2 closed
»	Factory configured - do not alter	JP16	pins 1 & 2 closed
»	Factory configured - do not alter	JP17	pins 2 & 3 closed
»	Factory configured - do not alter	JP18	pins 2 & 3 closed
»	Factory configured - do not alter	JP19	pins 1 & 2 closed
»	IDE interrupt select SLVAC disabled	JP20	pins 1 & 2 closed
	IDE interrupt select SLVAC enabled	JP20	pins 2 & 3 closed
»	Factory configured - do not alter	DPS1/1	Off
»	Parallel port address select primary	DPS1/2	On
	Parallel port address select secondary	DPS1/2	Off
»	Serial port address select primary	DPS1/3	On
	Serial port address select secondary	DPS1/3	Off
»	Floppy drive interface address select primary	DPS1/4	On
	Floppy drive interface address select secondary	DPS1/4	Off
»	Monitor type select color	DPS1/5	On
	Monitor type select monochrome	DPS1/5	Off
»	CPU speed select fast	DPS1/6	On
	CPU speed select slow	DPS1/6	Off

DRAM CONFIGURATION
Size	Bank 0	P-0	Bank 1	P-1
1MB	(8) 44256	(4) 41256	NONE	NONE
2MB	(8) 44256	(4) 41256	(8) 44256	(4) 41256

MOUSE IRQ CONFIGURATION
IRQ	JP8	JP9	JP10	JP11
IRQ3	Open	Open	Closed	Open
IRQ4	Open	Closed	Open	Open
IRQ5	Closed	Open	Open	Open
IRQ9	Open	Open	Open	Closed