Siemens PC 670 Manuel de service Page 59

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Computing Unit Expansions
4-7
SIMATIC Panel PC 670 Computing Unit Equipment Manual
Edition 12/01
4.1.5 The Motherboard
The motherboard is the heart of the computing unit. Here, data are processed and
stored, and interfaces and device I/Os are controlled.
Fan
2 x PS/2
X1 bus connector (EISA slot)
Ethernet
xformer
ESD/EMC
LPT1/COM1,2
PIIX
AGP
MD0/2
MD1/3
REC/MC
3.3V PCI
DP12 I/O
DRAM
FRONTSIDE IF
Ultra I/O
FDC
ISA
LPT/
COM
HD PS
5V CMOS display
TFT/DSTN
Prim. IDE 3.5’’
Sec. IDE 2.5’’
EMC2 processor
module (Pentium II/Celeron)
3.3V/5V LVDS/TFT display
Unassigned disk
Ethernet
contr.
82559
E2
Quarz
P&D interface
Prim. IDE 2.5’’
Sec. IDE LS120
X18 (TTY hybrid X3133)
D2
X12
CBT
CBT
CBT
CBT
CBT
D3 D7
X20
(DRAM
socket 1)
PIIX4E
Quarz
CPU
USB
IDE
ISA
PCI
D9
X3
X4
X31
X41
D11
BIOS
D19
X25
X6
X5
X11
X9
X805
X26 (alt.
COM2)
USB
X40
Loudsp.
H1
X14 power supply unit
N7
LM77
S 2 reset
X44
X420
X400
LVDS
5 V
3.3V
D112
CMOS
driver
+EMC
5 V
D145148
LCD/VGA
controller
Chips & Techn.
B69000
CRT
D159
X410,
X411
DP12
host bridge
PLX9050
D90
D95,96, D100102,
D105109
X504
X503
X800
D156
Card bus
controller
PCI1211
TPS2211
N6
X600
D143
Z1
X28
(fan)
X24
(CMOS
battery)
VCC
Clock
Buffer
Quarz
D1
Clock
generator
D2
X19
(DRAM
socket 2)
DP12
SRAM
D95,96
D157,158
V24 driver
RJ45
w. LEDs
X17 (TTY hybrid X3134)
(TTY
active/passive)
S1
DP12
RS485 module
DP12
controller
ASPC/2
D94
Other
logic
SMSC 37B727
1
2
5
4
3
8 10 11 12 13
16 (top)
17 (bottom)
18 (top)
19 (bottom)
20
21
22
23
24
26
27
28
29
30
313233
14 (top)
15 (bottom)
6
7
25
9
Figure 4-4 Motherboard
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