Bottom View

Northbridge Acer 5520

PU9 3V/5V PWM IC

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Pin

Description

Pin

Description

U25

CPU Socket

U22

LAN Transformer IC

CN14

Battery Conn.

PJ1

PWR Jack Conn.

CN16

Mini Card Conn.

CN12

LAN Conn.

CN18

HDD Conn.

CN13

CRT Conn.

U27

Thermal Protection IC

U24

HDMI Lever Shift IC

CN22

RTC Socket

CN12

HDMI Conn.

CN24

ODD Conn.

CN19

eSATA Conn.

CN30

Mini Card Conn.

CN21

USB Conn.

CN20

MXM Card Conn.

CN23

USB Conn.

PU7

+ 1.05V PWM

CN26

Line-in Conn.

CN15

Fan Conn.

CN28

External MIC Conn.

U26

Northbridge

CN29

External Headphones

U29

Southbridge

U32

Codec IC

CN25

Memory DIMM

U33

Subwoofer Amplifier

CN27

Memory DIMM

PU10

+ 1.5V SUS PWM IC

PU9

3V/5V PWM IC

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