Texas Instruments Extensa 660 Series Maintenance Manual page 54

Bank 1
8, 16MB
(DIMM)
Pentium
P55CLM-
166MHz
LCM
INVERTER
14.318MHz X'TAL
4-2 Theory of Operation
FLASH BIOS
256KB
CORE CHIP
UMC
UM8891BF-N,
CONTROLLER
UM8892BF-N,
UM8886BF-N
VGA CHIP
VIDEO RAM
C&T 65548
1MB
CRT ON
AC Input
66MHz
24MHz
CLOCK GEN
ICS
14.318MHz
AV9154-43
Figure 4-1 Extensa Functional Block Diagram
PCMCIA
OMEGA
82C094
GLIDE PAD
KB
EXT. KB/MOUSE
MITSUBISHI
M38813M4
INTERNAL KB
SUPER I/O
NS PC87336VLJ
CD-ROM
(8X, 10X)
AC
ADAPTER
CONVERTER
BATTERY IN
CARD 0
CARD 1
COM1
PRINTER
HDD
FDD
+3.45V
+5V
DC/DC
+12V
DC-IN