Service manual

Schematic Diagrams
B - 2 System Block Diagram (71-P2970-002A)
B.Schematic Diagrams
System Block Diagram
SOCKET-478
SPRINGDALE-G
Audio Codec
KEYBOARD
/ MOUSE
CRT
EXTERNAL
POWER
System Block Diagram
POWER
REGULATOR
DIMM 1 DIMM 2
IDE 2
AC'97
USB 1
SATAUSB 4
Firmware
CARDBUS
USB 3
CLOCK
IDE 1
RTC
GENERATOR.
LCD
MIC
LINE IN
(ATA-100) (ATA-100)
P.14
P.29
P.27,29
P.27,28,29
RTCVCC
SB3V
+1.7V
+12V
+5V
+3V
SB5V
PWM
3 * CPUCLKC
6 * PCI-33MHz
2 * 48MHz
3 * 66MHz
2 * 14MHz
R.G.B.
CHRONTEL
PANEL
RJ-45
RealTek
SUPER I/O
LPC Bus
HEAD PHONE
MINI-PCI
Dual-Channel DDR Memory - Bus
IDE Bus
PCI Bus
Host Bus
CH7017A
Winbond
PCI1520
WLAN or
IEEE1394
OPTION
AC'97 MDC
MODULE
GPIOsFLOPPYPARALLELSERIAL
Intel Pentium 4 processor
Prescott or Northwood
Intel
( North Bridge )
ICH-5
460 mBGA
Intel
( South Bridge )
DVO
LVDS
RTL8100BL
PCI Bus
RJ-11
AC'97 Bus
AC'97 Bus
W83627HF
HUB
( BIOS )
3 * CPUCLKT
+1.275V
V_CORE
GMCHVTT
+1.5V
DUAL2.5V
Channel A Channel B
400/533/800MHz
266MB/s
Hub interface 1.5
USB 2
TV-TUNER
TOUCH
PANEL
Sheet 1 of 28
Schematic Diagram