Huawei E5331 Maintenance Manual

E5331 Maintenance Manual Basic Version V1.0
Internal
2012-4-21
Huawei confidential. No spreading without permission.
Page 9 of 57
4 Location of Components on the Main Board
Take E5331 for example:
X3501 Crystal
Units,32.768kHz
Failure Symptom:
No power on
Z901&Z902 Diversity
Receive SAW FILTER
-W900MHz &W2100MHz
Failure Symptom:
RF Receiving Failure
U3201 FLASH
Failure Symptom:
No power on;
Others software failure
Z603&Z602SAW FILTER
–W900MHz&W2100MHz
Failure Symptom:
Weak signal
U3801 Battery
Management IC
Failure Symptom:
Charge failure
TCXO301 TCXO,26MHz
Failure Symptom:
No power on
U3101 CPU
Failure Symptom:
No power on,
Others failure
U3501 PM
Failure Symptom:
No power on
Z501&Z401SAW FILTER
–W900MHz&W2100MHz
Failure Symptom:
TX failure
U3601 Voltage
Regulator
Failure Symptom:
RF Failure - WCDMA
X4001 Crystal
Osillator,26MHz
Failure Symptom:
WiFi Failure
U4102 RF Switch
Failure Symptom:
WiFi Failure
U4001 WIFI IC
Failure Symptom:
WiFi Failure
Z4101 Ceramics Filter
2450MHz
Failure Symptom:
WiFi Failure
U901 Duplexer
–W2100MHz&W900MHz
Failure Symptom:
RF Failure
U101 RF Transceiver
Failure Symptom:
RF Failure
U501 Power Module
–W2100MHz
Failure Symptom:
RF Transmitting
Failure
U401 Power Module
–W900MHz
Failure Symptom:
RF Transmitting Failure
U402 Duplexer
-W2100MHz
Failure Symptom:
RF Failure
U502 Duplexer
–W900MHz
Failure Symptom:
RF Failure
U801
Front End Module
Failure Symptom:
RF Failure
U703 SPDT
Failure Symptom:
RF Failure
Z701 SAW FILTER
–W900MHz
Failure Symptom:
RF Transmitting Failure
Z702 SAW FILTER
–W850MHz
Failure Symptom:
RF Transmitting Failure
S3501
POWER BUTTON
Failure Symptom:
No power on
No power on

Huawei E5331 Specifications

General

Wi-Fi	Yes
WLAN data transfer rates supported	21 Mbit/s
Data network	3G, EDGE, GPRS, HSDPA, HSPA+, HSUPA
GPRS multislot class	-
Device type	Cellular wireless network equipment
Product color	White
Compatible operating systems	Windows XP / Vista / Windows7 / Mac OS 10.5 / Mac OS 10.6 / Mac OS 10.7
Market positioning	Portable

Weight and Dimensions

Depth	60 mm
Width	92.8 mm
Height	12.8 mm
Weight	82 g