Sharp GX20 Service Manual - Page 131

Conditions: SIM card inserted, power on, in stand-by mode opened, Measuring instrument: Digital

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CONFIDENTIAL GX20 Conditions: SIM card inserted, power on, in stand-by mode (opened) Measuring instrument: Digital multimeter : Unmeasurable A IC101 IC107 PIN NO. VOLTAGE PIN NO. VOLTAGE 1 0V 1 2 0V 2 0V 3 0V 3 0.29V 4 0V 4 0V 5 B 6 0.05V 0V 5 3V 7 0V IC201 8 Not used PIN NO. VOLTAGE 1 3.68V IC103 2 0V PIN NO. VOLTAGE 3 3.68V 1 1.3V 4 Not used 2 0V C 3 3V 5 3.01V 4 3V IC202 5 3V PIN NO. VOLTAGE 6 0V 1 3V 7 3V 2 3.68V 8 0V 3 1.98V 9 0V 4 3.7V D 10 11 Not used 5 6 1.57V 0V 12 7 1.39V 13 0.01V 8 2.81V 14 0.01V 9 1.37V 15 3.69V 10 0V 16 0V 11 0V 17 0.01V 12 1.4V E 18 0.01V 19 0V 13 0V 14 3V 20 0.84V 15 0V 21 0.63V 16 2.81V 22 1.08V 17 Not used 23 0.78V 18 2.86V 24 1.16V 19 3.68V 25 1.21V 20 2.81V F 26 0.91V 21 1.8V 27 1.09V 22 3.68V 28 2.4V 23 2.46V 29 3V 24 Not used 30 1.83V 25 2.75V 31 2.11V 26 1.21V 32 Not used 27 0V G IC105 28 3V 29 1.81V PIN NO. VOLTAGE 30 3.65V 1 Not used 31 3V 2 0V 32 Not used 3 1.49V 4 2.75V 5 0V H IC203 PIN NO. VOLTAGE 1 0V 2 3.01V 3 1.8V 4 3.01V IC204 PIN NO. VOLTAGE 1 3V 2 3.01V 3 Not used 4 0V IC205 PIN NO. VOLTAGE 1 3.67V 2 0V 3 2.81V 4 2.81V 5 3V IC206 PIN NO. VOLTAGE 1 0V 2 0V 3 0.02V 4 0V 5 3.68V IC207 PIN NO. VOLTAGE 1 3.67V 2 0V 3 2.82V 4 3V 5 1.8V IC208 PIN NO. VOLTAGE 1 3.67V 2 0V 3 2.81V 4 0V 5 2.53V IC209 PIN NO. VOLTAGE 1 0V 2 0V 3 0V 4 0V 5 3.68V IC210 PIN NO. VOLTAGE 1 3V 2 0V 3 2V 4 2.81V IC301 PIN NO. VOLTAGE 1 2 3 4 5 0V 6 3V 7 0V 8 3V IC302 PIN NO. VOLTAGE 1 0V 2 0V 3 4 0V 5 3.69V IC303 PIN NO. VOLTAGE 1 3V 2 0V 3 1.28V 4 5 IC304 PIN NO. VOLTAGE 1 3V 2 0V 3 1.28V 4 5 IC305 PIN NO. VOLTAGE 1 3V 2 0V 3 3V IC306 PIN NO. VOLTAGE 1 1.39V 2 0V 3 0V 4 0V 5 3.69V IC307 PIN NO. VOLTAGE 1 Not used 2 0V 3 1.5V 4 2.75V 5 0V IC308 PIN NO. VOLTAGE 1 Not used 2 3 4 5 3V IC404 PIN NO. VOLTAGE 1 3.69V 2 0V 3 0.09V 4 2.97V 5 0V 6 3.69V IC405 PIN NO. VOLTAGE 1 3.61V 2 1.82V 3 0V 4 1.8V 5 3.61V IC406 PIN NO. VOLTAGE 1 Not used 2 0V 3 0V 4 3V 5 3V NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1. 1 2 3 4 5 6 5 - 35

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GX20
5 – 35
CONFIDENTIAL
A
B
C
D
E
F
G
H
1
2
3
4
5
6
IC101
PIN NO. VOLTAGE
1
2
3
4
5
6
7
8
0V
0V
0V
0V
0.05V
0V
0V
IC307
PIN NO. VOLTAGE
Not used
Conditions: SIM card inserted, power on, in stand-by mode (opened)
Measuring instrument: Digital multimeter
: Unmeasurable
IC308
PIN NO. VOLTAGE
Not used
Not used
IC103
PIN NO. VOLTAGE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1.3V
0V
3V
3V
3V
0V
3V
0V
0V
0.01V
0.01V
3.69V
0V
0.01V
0.01V
0V
0.84V
0.63V
1.08V
0.78V
1.16V
1.21V
0.91V
1.09V
2.4V
3V
1.83V
2.11V
Not used
Not used
IC105
PIN NO. VOLTAGE
1
2
3
4
5
0V
1.49V
2.75V
0V
Not used
IC107
PIN NO. VOLTAGE
1
2
3
4
5
0V
0.29V
0V
3V
IC203
PIN NO. VOLTAGE
1
2
3
4
0V
3.01V
1.8V
3.01V
IC210
PIN NO. VOLTAGE
1
2
3
4
1
2
3
4
5
6
7
8
1
2
3
4
5
1
2
3
4
5
3V
0V
2V
2.81V
0V
3V
0V
3V
0V
0V
0V
3.69V
3V
0V
1.28V
IC204
PIN NO. VOLTAGE
1
2
3
4
3V
3.01V
0V
IC201
PIN NO. VOLTAGE
1
2
3
4
5
3.68V
0V
3.68V
3.01V
Not used
Not used
IC202
PIN NO. VOLTAGE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
3V
3.68V
1.98V
3.7V
1.57V
0V
1.39V
2.81V
1.37V
0V
0V
1.4V
0V
3V
0V
2.81V
2.86V
3.68V
2.81V
1.8V
3.68V
2.46V
2.75V
1.21V
0V
3V
1.81V
3.65V
3V
Not used
Not used
Not used
IC205
PIN NO. VOLTAGE
1
2
3
4
5
3.67V
0V
2.81V
2.81V
3V
1
2
3
4
5
1
2
3
4
5
0V
1.5V
2.75V
0V
IC406
PIN NO. VOLTAGE
Not used
1
2
3
4
5
0V
0V
3V
3V
3V
IC206
PIN NO. VOLTAGE
1
2
3
4
5
0V
0V
0.02V
0V
3.68V
IC207
PIN NO. VOLTAGE
1
2
3
4
5
3.67V
0V
2.82V
3V
1.8V
IC208
PIN NO. VOLTAGE
1
2
3
4
5
3.67V
0V
2.81V
0V
2.53V
IC209
PIN NO. VOLTAGE
1
2
3
4
5
0V
0V
0V
0V
3.68V
IC301
PIN NO. VOLTAGE
IC302
PIN NO. VOLTAGE
IC303
PIN NO. VOLTAGE
IC304
IC305
PIN NO. VOLTAGE
IC306
PIN NO. VOLTAGE
1
2
3
4
5
1
2
3
4
5
3V
0V
1.28V
3V
0V
3V
PIN NO. VOLTAGE
1
2
3
1.39V
0V
0V
0V
3.69V
IC404
PIN NO. VOLTAGE
1
2
3
4
5
6
3.69V
0V
0.09V
2.97V
0V
3.69V
IC405
PIN NO. VOLTAGE
1
2
3
4
5
3.61V
1.82V
0V
1.8V
3.61V
NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1.