Gasboy CFN Series CFN II Quick Reference - Manual (Page 22)

CFN II Quick Reference
18 C09159 Rev. 2238
EPROM Size—K29, K30
EPROM K29 K30
2764 2-3 2-3
27128 2-3 2-3
27256* 1-2 2-3
27512 1-2 1-2
*required by Dsite version 3.1a and above
Floppy Disk Jumpers
Jumper Installed Removed Default
K31 test adjustment normal operation out
K32 MFM recording FM recording in
K33 enable precomp disable precomp in
K34 3.5” or 5.25” drive 8” drive in
SCII+ CPU Board
Part number: C05852
Use only 27256 EPROMs.
The DIP switch settings are the same as on the SCII
CPU board.
Jumpers
• K1, K2, K23-K28, and K35 are the same as on
the SCII CPU board.
• Jumper 2-3 on K30.
• Jumper 1-2 on K37.
Old Memory Board
Part number: C08331.
Jumpers
E1, E2, and E3 must always be jumpered from 1-2.
Install E4 to connect battery power; remove E4 to
change memory chips.
Install with all batteries enabled:
E5 connects battery 1.
E6 connects battery 2.
E7 connects battery 3.
Remove appropriate jumper to change battery.
Switches
DIP Switch Bank 1
Position & Definition Setting(*=customary)
1 battery 1 failure alert *closed=enabled
2 battery 2 failure alert *closed=enabled
3 battery 3 failure alert *closed=enabled
4 battery 1 charge circuit *closed=enabled
5 battery 2 charge circuit *closed=enabled
6 battery 3 charge circuit *closed=enabled
DIP Switch 2
The SW2 switch, which controls battery backup to
the CPU PCB, should be open (disabled). Open is to
the left.
PCMCIA Memory Board
Jumpers
Part number: C06731 for the board alone, C06759
(does not contain sram slots) for the kit assembly,
which includes the board, standoffs, and instructions.
Part number C05849 is the memory board for the
Islander II which contains sram slots.
Jumper Setting Setting Default
K1 1-2=SC II 2-3=SC I 1-2
K2 1-2=enable IRQ 2-3=disable IRQ 2-3
K3 1-2=SC II 2-3=SC I 1-2
K4 1-2=SC II or SC I
with no PCMCIA
slots 2-3=SC I with
PCMCIA 1-2
K5, K6 off=SC II and SC I
with 512K off
K7 on=enable SC I
PCMCIA
off
K8 on=drive 3 IRQ off
K9 on=drive 4 IRQ off
K8 and K9 cannot both be jumpered. Jumper one or
the other, or neither.