User’s Guide
Jumpers & Connectors
2-2
2.1 Jumpers Setting
Speaker/Keylock/Reset/Turbo/LED (J1)
J1
Internal buzzer
1-3
External speaker (remove 1-3)
1-7
Power LED, Pin 2+, Pin6-
2-6
Keylock
8-10
System reset switch
11-12
Turbo Switch
13-14
Turbo LED, Pin16+, Pin15-
15-16
HDD LED, Pin18+, Pin17-
17-18
External keyboard (J5)
J5
Keyboard clock
1
Keyboard data
2
No Connect
3
Keyboard ground
4
Keyboard power
5
M-System Address Select (JP1, 1-6)
JP1
1-2
3-4
5-6
CC00-CDFF
open
close
close
D000-D1FF
open
open
close
D800-D9FF
open
close
open
E000-E1FF
open
open
open
Watchdog Timer (JP1, 7-8)
JP1
Watchdog time out gen. system reset
7-8