Toshiba 50CT User Guide - Page 177
Table B-1, System board front, Table B-2 System board back
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Appendix B Board Layout Mark (A) (B) (C) (D) (E) (F) (G) Table B-1 System board (front) Number IC2 IC13,IC14 IC19 PJ2 PJ5 PJ7 PJ401 Name PETUNIA2 GA VRAM SIR Docking I/F connector HDD I/F connector PC card connector DC IN connector Mark (A) (B) (C) (D) (E) (F) (G) (H) (I) (J) (K) Table B-2 System board (back) Number IC1 IC3,IC4,IC5,IC6 IC11 IC12 IC17 IC20 IC301 PJ3 PJ4 PJ6 PJ301 Name CPU 16M DRAM Clock generator VGA GA Flash BIOS Keyboard controller Libretto 50CT: OPL3SA2 ∗Libretto 70CT: OPL3SA2 Display assembly I/Fconnector RTC battery connector Keyboard I/F connector Headphone connector Libretto 50CT/70CT Maintenance Manual B-3
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Appendix B Board Layout
Libretto 50CT/70CT Maintenance Manual
B-3
Table B-1
System board (front)
Mark
Number
Name
(A)
IC2
PETUNIA2 GA
(B)
IC13,IC14
VRAM
(C)
IC19
SIR
(D)
PJ2
Docking I/F connector
(E)
PJ5
HDD I/F connector
(F)
PJ7
PC card connector
(G)
PJ401
DC IN connector
Table B-2 System board (back)
Mark
Number
Name
(A)
IC1
CPU
(B)
IC3,IC4,IC5,IC6
16M DRAM
(C)
IC11
Clock generator
(D)
IC12
VGA GA
(E)
IC17
Flash BIOS
(F)
IC20
Keyboard controller
(G)
IC301
Libretto 50CT: OPL3SA2
*
Libretto 70CT: OPL3SA2
(H)
PJ3
Display assembly I/Fconnector
(I)
PJ4
RTC battery connector
(J)
PJ6
Keyboard I/F connector
(K)
PJ301
Headphone connector