App-7
Table A-1 ICs on the system board FA2SYx
Callout
Number
Name
(A)
IC2
CPU: Central Processing Unit (80C286-12)
(B)
IC3
NDP: Numeric Data Processor (80C287-12)
(C)
IC4
GA-SYS CNT: System Control Gate Array
(D)
IC1
GA-REF CNT: Refresh Control Gate Array
(E)
IC6, 7
System RAM
(F)
IC9
BIOS ROM
(G)
IC8
Backup RAM
(H)
IC46
RTC: Real Time Clock
(I)
IC11
SI: Super Integration T9778A
(J)
IC24
KBIC: Keyboard Interface Controller 80C42
(K)
IC25
KBSC: Keyboard Scan Controller 80C50
(L)
IC30
PVGA1F
(M)
IC31, 32
Video RAM
(N)
IC10
GA-I/O CNT: I/O Controller Gate Array
(O)
IC5
GA-I/O DEC: I/O Decoder Gate Array
(P)
IC16, 54
FDD Interface Driver
(Q)
IC17, 18
PRT Interface Driver
(R)
IC22, 23
RS-232-C Interface Driver
(S)
IC707
Power Supply Microprocessor (U47C660S)
(T)
IC704
Regulator
(U)
IC705
Backup Power Controller (L1025)
(V)
IC708
Power Supply Driver (L1600)
(W)
IC709
Switching Regulator (L1451)
Summary of Contents for T-Series T2000
Page 1: ...1 1 Part 1 Hardware Overview ...
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Page 15: ...2 1 Part 2 Problem Isolation Procedures ...
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Page 53: ...3 1 Part 3 Tests and Diagnostics ...
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Page 113: ...4 1 Part 4 Replacement Procedures ...
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Page 141: ...App 1 Appendices ...
Page 142: ...App 2 This page intentionally left blank ...
Page 146: ...App 6 Figure A 1 System board FA2SYx ICs Back I M M N S W V P R R U ...
Page 151: ...App 11 Figure A 3 System board FA2SYx connectors Back PJ1 A ...
Page 161: ...App 21 Appendix C ASCII Character Codes Table C 1 ASCII character codes ...
Page 174: ...T2000 Notes ...