Sharp 902SH Service Manual page 31

3g(umts)/gsm/gprs
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SD PWB
No.
Checker
Ref.
1
O
TP2000
2
O
TP2001
3
TP2002
4
O
TP2003
5
O
TP2004
6
O
TP2005
7
O
TP2006
8
TP2007
9
TP2008
10
TP2009
11
TP2010
12
TP2011
13
TP2012
14
TP2013
15
TP2014
16
TP2015
17
TP2016
18
TP2017
19
TP2018
20
TP2019
21
TP2020
22
TP2021
23
TP2022
24
TP2023
25
O
TP2024
26
O
TP2025
27
O
TP2026
28
O
TP2027
CONFIDENTIAL
φ
Name
VPLUS2
1.2
IC2005
VPLUS1
1.2
IC2005
BLED –
0.3
TP3009
VDD3
1.2
IC2002
VOUT2
1.2
IC2002
VDD4
1.2
IC2002
VGIG29
1.2
IC2002
BLED+
0.3
IC2005
BLED –
0.3
TP3009
I2CCLKB
0.3
IC1500
I2CDATB
0.3
IC1500
TXON
0.3
IC1000
FLOW
0.3
IC1500
GAINT
0.3
CN2002
LEDLD
0.3
IC1500
SEOO
0.3
IC1500
SECLK
0.3
IC1500
SL_CDCE
0.3
IC1500
SL_CDDC
0.3
IC1500
BDRST
0.3
IC1500
BDCE
0.3
IC1500
SLCDRST
0.3
IC1500
LEDRST
0.3
IC1500
RSTGA
0.3
IC1500
VOUT1
1.2
IC2002
LEDR
1.2
LED2005
VDDD
1.2
IC2004
VSD29
1.2
IC2001
Output
Input
LED2005
IC2005
IC2005
CN2002
CN2002
CN2002
CN2002
TP3008
IC2005
CN2002
CN2002
IC2005
CN2002
IC1500
IC2005
IC2002,
IC2005
IC2002,
IC2005
Sub Display
Sub Display
IC2002
IC2002
Sub Display
IC2005
CN2002
CN2002
IC2005
CN2002
CN2001
2 – 23
Function
Three-colour LED power supply
anode
White LED boost output
Sub display backlight –, white LED
feedback circuit
Camera power supply (15 V)
Digital power supply (1.8 V)
Camera power supply (–8 V)
Digital power supply (2.9 V)
Main display/Sub display backlight
+, white LED boost output
Sub display backlight –, white LED
feedback circuit
I2C clock
I2C data
LED control signal
FLOW control signal
Camera INT signal
LED control select signal
Data
Clock
Sub display chip enable signal
Sub display data/command select
signal
Camera power supply, reset signal
Camera power supply, control
select signal
Sub display reset signal
LED reset
Camera reset signal
Digital power supply (3.0 V)
Three-colour LED red cathode
Camera driver power supply
(3.1 V)
SD power supply (2.9 V)
902SH
Remarks

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