4-11
4.4 System Test
Subtest 01
ROM checksum
This test performs a ROM checksum test on the T2200SX’s system board from
address F0000h - FFFFFh (64KB).
Subtest 02
HW status
NOTE:
When you select this subtest, be sure to select
no
for the Test Loop and Error
Stop messages. Otherwise, you will need to cold boot the computer to terminate this
subtest.
This test reads and displays the T2200SX’s hardware status as shown below.
76543210
H/W status = 10001000
Bit7 — =
Bit6 — CPU clock = 20MHZ
Bit5 — Notch signal = 2HD
Bit4 — FDD type = 2MB
Bit3 — =
Bit2 — Drive A/B = Ext. = B
Bit1 — External FDD = OFF
Bit0 — Internal FDD = 2HD
Once this information is displayed, press
Ctrl + C
to return to the SYSTEM TEST
menu.
Table 4-2 describes the hardware bit status.
Table 4-2 Hardware bit status
Bit
H/W status
1
0
7
Reserved
-
6
CPU clock speed
10 MHz
20 MHz
5
Media type
2DD
2HD
4
FDD type
1 MB
2 MB
3
Reserved
-
2
Drive A/B
B
A
1
External FDD
ON
OFF
0
Internal FDD
2DD
2HD
Summary of Contents for T-Series T2200sx
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Page 17: ...2 1 Chapter 2 Operational Overview ...
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Page 43: ...3 1 Chapter 3 Troubleshooting Procedures ...
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Page 83: ...4 1 Chapter 4 Tests and Diagnostics ...
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Page 141: ...5 1 Chapter 5 Disassembly Procedures ...
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Page 169: ...6 1 Chapter 6 Reassembly Procedures ...
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Page 191: ...App 1 Appendices ...
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Page 196: ...App 6 Figure A 2 System board FSTFGx ICs back G G G G E F J H I K ...
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Page 200: ...App 10 Figure A 4 System board FSTFGx connectors back E A P Q ...
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Page 203: ...App 13 A 3 System Board FSTFGx OSCs Figure A 5 System board FSTFGx OSCs front F G H E ...
Page 204: ...App 14 Figure A 6 System board FSTFGx OSCs back A B C D ...
Page 215: ...App 25 Appendix C ASCII Character Codes Table C 1 ASCII character codes ...