APPENDIX C
BUFFER EXPANSION/EPROM UPGRADE
C.1 M24SII-M01 BUFFER EXPANSION ZIP
MODULE INSTALLATION
Each one megabyte memory expansion upgrade kit provided by
BayTech includes two memory expansion chips (DRAM ICs) which
come in a zig zag in-line package (ZIP).
You will need the following equipment:
1 x phillips-head screwdriver.
1.
IMPORTANT: Remove power from the unit by depressing the
power switch on the front of the unit to OFF. Also remove power
cord from the AC outlet.
2.
Using the phillips-head screwdriver, remove the 4 phillips-head
screws holding the top cover of the unit. After screws are removed,
lift off cover.
3.
With LED side of the unit facing you, look down into the unit and
locate the 8 memory expansion module sockets. These zig zag
sockets are marked U301, U302,..., to U308 (see Appendix D.4).
Note that two or more of these sockets already have memory chips
installed.
4.
The new memory expansion chips must be installed in the
following order: the first megabyte DRAM ICs occupy sockets
U301 and U302, the second megabyte DRAM ICs occupy
sockets U303 and U304, the third megabyte DRAM ICs occupy
sockets U305 and U306, and the fourth megabyte DRAM ICs
occupy sockets U307 and U308.
WARNING: If you install the DRAM ICs in any order other than
described above, the Model 24SII will not recognize the memory
expansion.
Summary of Contents for 24SII
Page 1: ...OWNER S MANUAL MODEL 24SII DATA EXCHANGE SYSTEM Rev 2 00 BayTech publication U140E084 01 ...
Page 10: ...APPENDIX E TROUBLESHOOTING 137 APPENDIX F INDEX 143 ...
Page 138: ... APPENDIX D MECHANICAL LAYOUTS D 1 MODEL 24SII FRONT PANEL ...
Page 139: ... D 2 MODEL 24SII UNIT ASSEMBLY ...
Page 140: ... D 3 MODEL 24SII MAIN BOARD ...
Page 141: ... D 4 M24SII M01 MEMORY BOARD ASSEMBLY ...
Page 142: ... D 5 M24SII M02 MEMORY BOARD ASSEMBLY ...
Page 143: ... D 6 I O MODULE M24SII V02 4 PARALLEL PORTS ...
Page 144: ... D 7 I O MODULES M24SII V03 V06 V08 4 HIGH SPEED SERIAL PORTS MAIN BOARD ...
Page 145: ... D 8 I O MODULE M24SII V07 4 HIGH SPEED SERIAL PORTS CONNECTOR BOARD ...
Page 167: ...NOTES ...
Page 168: ...NOTES ...
