Samsung SGH-I8000 Troubleshooting
Flow Chart of TroubleShooting
9.
Power On
9-1.
PDA Part
z
Power On'
'
N0
At TA600
V>3.32
Yes
Pins in U902
11,12
V11=V12
Yes
Voltage in U903
LDO9=3.0
BUCK3=1.8
VCC_COIN=3.0
RSO=3.0
Yes
Check other Power Devices
No
Battery Change
No
Check U902&Neighboring Circuit
No
Check U903&Neighboring Circuit
9-1
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Flow Chart of Troubleshooting
ANT_WIFI_BT
R740
C709
T
P
8
0
1
T
C
3
6
9
3
2
2
9
9
9
R
R
U
1
3
R
4
7
1
4
C
9
0
R
9
7
7
2
R
9
7
6
0
0
9
9
9
R
R
0
8
R938
C
C
9
9
2
7
0
7
6
8
C
9-2
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PHONE Part
z
Flow Chart of Troubleshooting
Phone on
No
Pin in U502
4
Low
No
TP10026 Pin in U10007
`
Check U601& Neighboring Circuit
LOW
Output PWR
U601
O.K?
No
No
Yes
Check U502&Neighboring Circuit
Yes
Check U10007&Neighboring circuit
Yes
Check OSC300&UCP
Neighboring Circuit
10000
9-3
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Flow Chart of Troubleshooting
C
5
4
0
5
5
5
R
3
4
5
C
3
1
2
5
C
R
5
0
0
9
0
5
R
6
3
0
C
5
C
5
1
4
2
0
5
U
U
7
C
5
4
8
C
5
0
8
Z
D
7
0
1
4
C541
C539
0
R
5
4
8
U
5
9-4
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RECEIVER Working
9-2.
Flow Chart of Troubleshooting
Operator Recieve
No
SPK-Assy's Breakdown?
No
Y17, W17 Pin in UCP500
Signal ON?
Yes
A5,B5 Pin in U702
Signal ON
B5,D5 Pin in U704
Signal ON
?
Yes
?
Yes
END
Yes
Change SPK-Assy's
No
Check C726,C725
No
Check C726, C719
No
Check C739,C741,C740,C742
9-5
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Flow Chart of Troubleshooting
9-6
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Flow Chart of Troubleshooting
ZD10000
ZD10001
C
4
2
3
S
4
C
0
0
O
7
2
4
C
C10027
4
2
R
3
O
S
C
1
0
0
0
2
U
1
C
1
2
2
0
1
2
6
R
3
1
0
0
0
1
0
ZD10003
5
1
6
R
V
0
0
1
1
0
6
2
4
C
0
7
0
0
1
R
C
C
7
7
7
4
4
4
7
8
9
C
C
7
2
R
0
7
4
4
9
2
0
0
C
9
1
7
1
R
7
C
4
3
9
0
7
3
C
8
4
4
1
0
0
0
1
1
R
C
1
0
2
1
R
U10003
C
S
O
U1203
C1218
1
0
7
A
1
T
1
7
C
U701
C
C
7
7
3
4
C
7
6
7
4
5
C710
R
9
1
7
3
4
4
0
7
U
1
7
7
6
C
C
C
C
C731
7
7
4
4
0
2
R
7
3
L700
6
U700
0
0
1
7
2
C
1
7
2
0
2
1
R
L901
C
0
9
0
0
7
A
T
7
1
7
R
C735
3
3
7
C
C734
C
2
0
1
0
5
1
0
1
0
C729
C722
C726
C719
C718
C725
C717
C716
C723
R739
C715
U
1
0
C712
3
7
C
U
1
R709
U702
2
C
4
7
C705
C703
C706
C906
9
0
1
3
C
1
0
7
7
C
1
1
7
4
R
1
U
4
3
C
D
4
0
7
C
4
0
7
R
7
0
C
0
S
O
9
R981
7
9
R
R
9
7
8
0
1
0
0
1
U
9
3
C
9
9-7
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Flow Chart of Troubleshooting
SPEAKER Working
9-3.
Operator Speaker
No
SPK-Assy's Breakdown?
No
A3, K12 Pin in U10000
Signal ON
C9,B9 Pin in U702
Signal ON
B5,D5 Pin in U704
Signal ON
??
Yes
??
Yes
?
Yes
END
No
Yes
No
Change SPK-Assy's
Check PIN H1,H2 in U702
No
Check PIN C1,C2,D1,D2 in U704
Check R719,R720
9-8
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Flow Chart of Troubleshooting
9-9
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Flow Chart of Troubleshooting
ZD10000
ZD10001
C
4
2
3
4
C
0
S
0
O
7
2
4
C
C10027
4
2
R
3
O
S
C
1
0
0
0
2
U
1
C
1
2
2
0
1
2
6
R
3
1
0
0
0
1
0
ZD10003
5
1
6
R
V
0
0
1
1
0
6
2
4
C
0
7
0
0
1
R
C
C
7
7
7
4
4
4
7
8
9
C
C
7
2
R
0
7
4
4
9
2
0
0
C
9
1
7
1
R
7
C
4
3
9
0
7
3
C
8
4
4
1
0
0
0
1
1
R
C
1
0
2
1
R
U10003
C
S
O
U1203
C1218
1
0
7
A
1
T
1
7
C
U701
C
C
7
7
3
4
C
7
6
7
4
5
C710
R
9
1
7
3
4
4
0
7
U
1
7
7
6
C
C
C
C
C731
7
7
4
4
0
2
R
7
3
L700
6
U700
0
0
1
7
2
C
1
7
2
0
2
1
R
L901
C
0
9
0
0
7
A
T
7
1
7
R
C735
3
3
7
C
C734
C
2
0
1
0
5
1
0
1
0
C729
C722
C726
C719
C718
C725
C717
C716
C723
R739
C715
U
1
0
C712
3
7
C
U
1
R709
U702
2
C
4
7
C705
C703
C706
C906
9
0
1
3
C
1
0
7
7
C
1
1
7
4
R
1
U
4
3
C
D
4
0
7
C
4
0
7
R
7
0
C
0
S
O
9
R981
7
9
R
R
9
7
8
0
1
0
0
1
U
9
3
C
9
9-10
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MIC Working
9-4.
Operate Microwave
Pin in
3.4
HDC1201
Signal ON?
Yes
Flow Chart of Troubleshooting
No
Change
MIC Assy's
PininU703
6
No
Signal ON?
Yes
Check the DC bias voltage on MIC path
Yes
The voltage of
No
R717 is about
1.6V ?
YES
in U700
2,10
Signal ON
?
No
Change Earphone
Check the path around MIC Bais circuit
Check the
Pin HDC1201
6,7
YES
END
9-11
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Flow Chart of Troubleshooting
9-12
SAMSUNG Proprietary-Contents may change without notice
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Flow Chart of Troubleshooting
R430
L703
R732
1
0
7
0
L
0
7
F
R
7
2
2
8
2
L
7
3
7
R
0
R
9
7
5
0
2
7
U
7
0
0
D
9
7
3
R
C
R
C
1
0
7
3
5
0
0
2
H
4
0
7
L
SC216
1
0
0
R
7
3
7
9
2
U705
7
R
C
R
5
7
0
4
0
3
T
T
T
P
P
P
_
M
5
5
I
C
0
0
B
I
1
0
A
S
T
P
5
1
7
P
D
A
_
A
C
T
I
V
E
5
C510
R
3
0
3
P
A
2
0
M
0
1
2
2
4
C525
5
C
S
C
2
0
5
R
R
1
0
2
3
0
9
5
0
2
R
1
1
2
R
R
8
2
6
1
2
5
C
5
7
2
C
C263
C270
R
1
4
R
2
C269
0
9
9
P
P
T
T
R
5
0
8
6
4
D
I
_
1
3
B
S
5
5
U
C
C
R501
0
0
5
P
C
U
R
C
C
C
2
5
5
5
5
3
2
0
3
4
5
9
2
8
0
C
S
C
2
0
1
8
1
0
C
8
0
3
R
5
0
2
1
2
5
C
R
5
5
5
3
4
5
C
U911
C
1
8
4
C
U802
0
9
2
1
5
5
C813
C
C
5
C
3
3
R
5
0
0
9
0
5
R
6
7
0
C800
C815
S
L801
3
4
C
C
8
8
8
R
1
0
2
2
9
3
0
1
5
5
C
C
C507
7
3
4
0
5
5
C
R
C506
R
6
5
4
0
5
6
C
R
C
5
5
1
2
9
8
C505
R
6
2
9
3
R
0
4
1
0
R
1
0
1
3
1
C
8
5
4
C
5
C541
1
4
2
0
5
U
U
5
5
9
R
C
9
2
3
C539
C
5
0
8
R
5
4
8
R
1
0
0
4
0
5
U
8
Z
9
D
7
0
1
5
R
5
6
R
7
7
2
3
7
8
R
3
0
7
3
R
0
5
R
5
7
3
U
C922
R
1
0
1
5
3
4
1
1
2
1
0
C
2
1
U
3
C
2
1
1
C
2
1
7
C
C
8
8
1
1
1
0
5
C
2
8
1
C
0
0
1
0
R558
3
1
5
R
R
5
5
7
C10035
R
5
0
5
3
3
0
0
1
C
R
0
2
1
1
2
R
5
9
4
9
9
R
0
0
1
9
1
U
0
2
3
C
0
0
9
1
2
C
4
4
3
0
0
1
C
R
1
0
2
8
1
TP10024
TP10022
TP10011
C
1
C
0
1
0
9
1
0
0
0
7
7
8
R
1
1
5
0
0
6
0
0
1
1
1
C
C
R
R
R
1
1
0
5
0
1
6
1
6
2
6
7
8
0
0
2
U
1
0
T
T
P
1
R
0
0
R10143
1
1
2
0
0
C
0
2
1
5
0
0
F1200
1
0
0
2
1
2
R
C10025
1
F
1
2
0
Z
D
6
0
1
C1219
L
T
1
2
A
6
0
0
C
0
0
2
0
1
2
HDC1201
1
2
2
1
C
9-13
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Flow Chart of Troubleshooting
KEY Working
9-5.
Press Key
Volume Key
NG
?
No
Camera Key
NG
?
No
Hold key NG?
No
Yes
Yes
Yes
Yes
Key FPCB
Breakdown?
Camera Key
FPCB
Breakdown?
Hold Key
Breakdown?
Yes
Change Key FPCB
Yes
Change Key FPCB
Yes
Change Hold Key
Power Key NG?
YES
END
Key FPCB Breakdown?
Yes
No
9-14
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Change Key FPCB
Change LED
T-Flash Card Working
9-6.
Insert T-Flash
NG
Flow Chart of Troubleshooting
SD1302
Breakdown?
No
Pin
SD1302 short?
No
Pin2in U1202
Yes
Check U1202&Neighboring circuit
1,2
Low?
in
Yes
Yes
No
Change SD1302
Change SD1302
Change U1202
9-15
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Flow Chart of Troubleshooting
C
1
ZD10000
ZD10001
0
0
0
2
C
1
2
1
6
R
3
1
0
0
0
1
0
5
1
6
R
V
4
4
1
0
1
R
V
R
5
1
5
0
1
0
0
0
1
2
R
R
4
1
0
0
0
1
0
5
1
7
R
V
U
1
2
0
2
ZD10003
C
2
0
7
7
4
4
9
2
0
0
C
1
7
C
4
3
0
4
0
0
1
C
R
1
R
9
7
9
8
7
3
4
1
0
1
R
1
0
2
1
R
C
7
U
U1203
U10003
C1218
9-16
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Bluetooth Working
9-7.
Operate BT
N0
Flow Chart of Troubleshooting
BT_WIFI_ANT
O.K?
Yes
Pin 6 in U404=3.3V
Pin5 in U404=1.8V
While trying to
operate BT
Yes
Replace MOD400
No
Replace or Resolder
No
BT_WIFI_ANT
Change U404
9-17
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Flow Chart of Troubleshooting
2
R
0
2
8
6
1
R
1
R
2
0
7
0
2
0
C
C
1
1
2
2
1
1
5
1
1
1
1
2
C
H
D
C
1
1
0
1
8
1
U
0
R
2
4
C
0
1
0
4
2
P
T
1
2
5
1
1
C
1
2
1
1
1
R
C1116
C439
C414
0
0
4
O
8
9
0
1
4
C
F
1
S
0
0
4
4
C
C
C
4
0
1
F
1
C435
R
4
4
0
0
3
C
1
4
5
6
O
M
D
C
4
2
3
O
S
C
4
0
0
6
2
4
C
0
7
C
4
2
7
0
0
1
C10027
R
R
4
2
3
4
3
4
C
1
U404
0
0
8
0
R
7
6
1
4
R
C808
7
3
0
4
3
C
4
C
C807
C433
O
S
C
1
0
R
1
0
0
0
4
8
0
0
5
5
0
0
1
R
8
2
0
C
1
0
1
0
7
A
O
C
1
S
0
T
C
C
7
7
3
4
7
6
6
2
0
0
1
C
C
7
4
5
0
0
8
U
L800
TA800
1
1
7
C
U701
9
F800
0
8
C
C
C
9
9
R
R
1
1
8
8
1
2
1
1
0
1
0
0
9
L
0
4
C
9
C
9
0
0
L901
C
0
9
0
0
5
7
A
T
C710
9-18
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