HARDWARE
INSTALLATION
II-3.3.6
Mono
(Color)
Fine
Tuning
(VC1)
This
variable capacitor is used to adjust the color of video mode by deliver
ing
the correct frequency to the color display card. The user may use a screw
driver to tune the displayed
colors
with the VC1.
II-3.3.7
PROM
Type
Select
(DSW1-SW5)
DSW1-SW5
Setting
PROM
Type Installed
On
27128
Off
27256
II-3.3.8
Keylock
Function
(JP20)
Note:
a)
Connector
JP20 has two functions: the
keyboard inhibited (Pin 4 &
Pin
5) and
power on LED indicator (Pin 1 & Pin 3), usually connected
to
the front
panel by
wires.
b)
Insert key and turn the keyboard switch to control the keyboard inhibit
function.
Jumper (JP2O)
Set
Function
Pin
4
&
Pin
5
Close
Keyboard inhibit
Open
Keyboard
functioning
II-3.3.9 Setting
the
On
Board
RAM
Bank
and
Memory
Partition
(DSW1-SW6,7,8)
KP
286 12MHz system board was designed to support on board memory
of
up to 4M bytes, with 512K, 640K, IM,
2M or 4M bytes installed in the
dual-purpose 34-pin
sockets. The
RAM bank can be partitioned into various
configurations. These
are 512/0,
640/0, 640/384, 640/EMS384, 640/1048,
640/EMD1048, 640/3456,
640/EMS3456. It supports DOS
Conventional
memory,
Expanded
(EMS) memory, and Extended (running
in protected mode)
memory functions.
14
Содержание KP 286
Страница 1: ...КР 286 12MHz Mainboard User s Manual ...
Страница 2: ...КР 286 12MHz Mainboard Operation and Technical Reference Manual ...
Страница 4: ...INTRODUCTION Chapter I Introduction ...
Страница 8: ...HARDWARE INSTALLATION Chapter II Hardware Installation 5 ...
Страница 10: ...HARDWARE INSTALLATION II 2 Location Pin Assignment of Connectors Jumpers Switches etc 7 ...
Страница 20: ...SOFTWARE SETUP Chapter III Software Setup 17 ...
Страница 37: ...SOFTWARE SETUP Chapter IV Technical Reference 35 ...
Страница 39: ...TECHNICAL REFERENCE IV 2 System Board IV 2 1 System Board Block Diagram 25 20M 12M ...
Страница 43: ...APPENDIX Chapter V Appendix 41 ...
Страница 49: ...APPENDIX V 3 Appendix C Circuit Diagram 47 ...
Страница 50: ...APPENDIX 48 ...
Страница 52: ... APPENDIX 50 ...
Страница 58: ...APPENDIX 56 ...
Страница 59: ...APPENDIX 57 ...
Страница 60: ...APPENDIX 58 ...
Страница 61: ...APPENDIX I I I m Г х о Г Г 1 Г О а и п i l l т и Г Г о Г Г ы р л 1 1 1 П Г у л у 59 ...
Страница 62: ...APPENDIX 60 ...
Страница 63: ...APPENDIX 61 ...
Страница 66: ...APPENDIX 64 ...
Страница 67: ... APPENDIX 65 ...