Components On The Main Board; Diagram Of Components On The Mediapad Main Board - Huawei Mediapad S7-PRO Maintenance Manual

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4 Components on the Main Board

4.1 Diagram of Components on the Mediapad Main Board

U20/22/24/25 RF
U20/22/24/25 RF
power module power module
Failure symptom: Failure symptom:
abnormal RF abnormal RF
transmitter power transmitter power
U47 RF power
U47 RF power
module module
Failure symptom:
Failure symptom:
RF failure RF failure
U23 RF modem
U23 RF modem
Failure symptom: Failure symptom:
RF failure
RF failure
J21 speaker FPC
J21 speaker FPC
connector connector
Failure symptom:
Failure symptom:
no sound no voice
U33
U33 RF signaling
regulating sensor regulating sensor
Failure symptom:
Failure symptom:
RF failure RF failure
J2 rear camera
J2 rear camera
connector connector
Failure symptom:
Failure symptom:
rear camera failure rear camera failure
2012-07-20
S7-PRO Maintenance Manual (Basic Version V2.1)
Description
Left decorative cover
Right decorative cover
Side buttons
Battery
Wi-Fi antenna support
MIC-FPC
MIC
SUB FPC
Front camera
DC-JACK
SUB-PCB-FPC
U7 power supply U7 power supply U12 NAND Flash- U12 NAND Flash-
control IC EMMC-WLAN
control IC EMMC-WLAN
(PM8058) (PM8058) Failure symptom: Failure symptom:
Failure symptom: WLAN failure
Failure symptom: WLAN failure
power-on failure power-on failure
and other failures
and other failures
RF signal
J31 Headset J12 connector for
J31 Headset J12 connector for
connector connector power-on power-on and voice
Failure symptom: sound
Failure symptom: buttons
no sound no voice Failure symptom: Failure symptom:
failure to power on
failure to power on
and adjust the and adjust the voice
sound
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
J10 touchscreen
J10 touchscreen
U34 CPU U34 CPU
connector connector
(MSM8260)
(MSM8260)
Failure symptom:
Failure symptom:
Failure symptom: Failure symptom:
nothing happens nothing happens
power-on failure,
power-on failure,
when you touch the when you touch the
RF failure, and RF failure, and
screen screen
other failures
other failures
U6 6D sensor with LCD-FPC
U6 6D sensor with LCD-FPC
and accelerometer and accelerometer and connector connector
compass Failure symptom:
compass Failure symptom:
Failure symptom: Failure symptom: display failure display failure
accelerometer and
accelerometer and
compass failure compass failure
INTERNAL
Quantity
1
1
1
1
1
1
1
1
1
1
1
U48 charger IC J48 battery socket
U48 charger IC
Failure symptom: Failure symptom: Failure symptom:
battery charging power-on failure
battery charging
fails fails with no DC
inserted
J24 SIM card
J24 SIM card
socket socket
Failure symptom:
Failure symptom:
SIM registration SIM registration
fails fails
U36 touchscreen
U36 touchscreen
and speaker driver and speaker driver
IC
IC
Failure symptom: Failure symptom:
touchscreen and
touchscreen and
speaker failure speaker failure
U1 LCD
U1 LCD
management IC management IC
Failure symptom:
Failure symptom:
display failure display failure
U2 power
U2 power
management IC management IC
(PM8901)
(PM8901)
Failure symptom: Failure symptom:
power-on failure
power-on failure
and other failures and other failures
U17 level shifter IC
U17 voltage-level U40 LCD
U40 LCD
transformer IC Failure symptom:
management IC management IC
display failure
Failure symptom: Failure symptom:
Failure symptom:
display failure
display failure display failure
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