Contents

About this manual

. v

No-beep symptoms

.

66

 

 

 

LCD-related symptoms

.

67

Safety information

.

1

Intermittent problems

.

68

General safety

.

2

Undetermined problems

.

68

 

 

 

 

Electrical safety

.

3

Status indicators

.

69

Safety inspection guide

.

5

 

 

 

 

Handling devices that are sensitive to electrostatic

 

 

Special keys and Fn key combination

 

71

discharge

. 6

 

Grounding requirements

.

6

 

 

 

 

Safety notices (multilingual translations) . . . .

.

7

FRU replacement notices

.

73

Laser compliance statement (multilingual

 

 

Screw notices

.

73

translations)

28

Retaining serial numbers

.

74

 

 

 

Important service information

39

Restoring the serial number of the system unit

 

74

Retaining the UUID

.

74

Strategy for replacing FRUs

. 40

Reading or writing the ECA information . .

. 75

Strategy for replacing a hard disk drive . . . . 40

 

 

 

 

Important notice for replacing a system board .

. 41

Removing and replacing a FRU . . .

. 77

How to use error message

.

41

1010

Battery pack

.

78

Strategy for replacing FRUs for CTO, CMV, and

 

 

 

 

1020

ExpressCard blank bezel

.

79

GAV

.

42

1030

Optical drive or travel cover

.

80

Product definition

.

42

1040

Thermal cover

.

81

FRU identification for CTO, CMV, and GAV

 

 

 

 

1050

Hard disk drive (HDD) assembly . . . .

. 82

products

.

42

1060

DIMM

.

84

 

 

 

General checkout

45

1070

Fan assembly

.

85

1080

CPU

.

89

What to do first

. 46

1090

Wireless WAN slot cover and PCI Express Mini

 

Checkout guide

.

47

Card for wireless WAN

.

90

Diagnostics using PC-Doctor for DOS . . .

. 47

1100 Palm rest assembly with cables

. 93

Lenovo ThinkVantage Toolbox (Lenovo System

 

 

1110 PCI Express Mini Card for wireless LAN . .

. 96

Toolbox)

.

50

1120 Backup battery

.

98

PC-Doctor for Rescue and Recovery . . . .

. 50

1130 Bluetooth daughter card (BDC-2) . . . .

. 99

FRU tests

.

51

1140 Keyboard

.

100

Power system checkout

.

53

1150 Keyboard bezel

.

103

Checking the ac adapter

.

53

1160 LCD unit

.

106

Checking operational charging

.

53

1170 Top shielding assembly

.

110

Checking the battery pack

.

54

1180 System board assembly

.

112

Checking the backup battery

. 54

1190 USB connector board and USB cable assembly

117

Related service information

57

1200

DC-in cable and base cover

. 119

2010

LCD front bezel

.

124

Restoring the factory contents by using Recovery

 

 

2020

Speaker assembly

. 125

Disc Set

.

57

2030

Integrated camera

.

126

Passwords

. 58

2040

Hinges, LCD panel, LCD cable, and LCD rear

 

Power-on password

.

59

cover assembly

.

127

Hard-disk password

.

59

2050 Antenna assembly

.

130

Supervisor password

.

59

Locations

131

How to remove the power-on password . . .

. 59

How to remove the hard-disk password . . .

.

60

Front view

.

131

Power management

.

62

Rear view

.

133

Screen blank mode

.

62

Bottom view

.

133

Sleep mode

.

62

 

 

 

 

Hibernation mode

.

62

Parts list

135

Symptom-to-FRU index

.

63

Overall

.

136

Numeric error codes

.

63

LCD FRUs

.

160

Error messages

.

66

Keyboard

.

171

 

 

 

© Copyright Lenovo 2010

 

 

 

 

 

iii

Page 5
Image 5
Lenovo E40, E50 manual Contents

E40, E50 specifications

Lenovo has long been recognized for producing reliable and innovative laptops, and the E50 and E40 series showcase this commitment to quality and performance. Targeted primarily at small businesses, these models are built for efficiency, durability, and usability, making them a popular choice among professionals on the go.

The Lenovo E50 comes equipped with the latest Intel processors, ensuring fast and efficient multitasking capabilities. With options for Intel's Core i5 or i7 processors, users can enjoy seamless performance for everyday tasks alongside more demanding applications. Additionally, the laptop supports DDR3L RAM, which can be configured up to 16GB, providing substantial memory for applications and enhancing the overall user experience.

On the other hand, the E40 series features a slightly more compact design while still offering robust power. This laptop variant is also equipped with Intel processors, providing a solid foundation for various computing needs. With a focus on portability, the E40 is an ideal solution for professionals who require a lightweight device without sacrificing performance.

Both models come with Lenovo's signature AccuType keyboard, which features a user-friendly design for comfortable typing, reducing user fatigue during prolonged use. This keyboard design is particularly beneficial for business users who may spend hours drafting reports, answering emails, or engaging in video conferences.

In terms of display, the E50 and E40 laptops boast vibrant HD screens that deliver sharp visuals and broad viewing angles. The anti-glare technology further enhances usability, allowing users to work effectively in various lighting conditions.

Connectivity is another strong point for both laptops. Equipped with multiple USB ports, HDMI output, and an Ethernet port, these devices offer versatility for connecting a variety of peripherals, external displays, and networks. Additionally, built-in Wi-Fi and Bluetooth ensure that users remain connected, facilitating collaboration and communication.

Security features are also paramount. Both the E50 and E40 offer options for fingerprint readers and TPM 2.0, ensuring that sensitive data remains protected against unauthorized access.

In conclusion, the Lenovo E50 and E40 series represent robust solutions for small businesses and professionals seeking reliable performance, portability, and comprehensive features. With their powerful processors, quality displays, ergonomic keyboards, and strong security measures, these laptops provide a balanced mix of productivity and convenience, making them valuable tools in today’s fast-paced work environment.