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Level
8.
Block Diagram
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8-1
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Level3Repair
PCB Diagrams
8-2.
8-2-1.
Top
8-2
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This Document can not be used without Samsung's authorization
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Level3Repair
8-2-1.
Bottom
8-3
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This Document can not be used without Samsung's authorization
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Level3Repair
LOGIC
8-3.
8-3-1.
Power On
Power switch on
NG
Check the current
consumption
>= 100
mA?
Yes
Check the battery
voltage
>= 3.8?
Yes
Check the clock at
OSC100
=32
KHz?
Yes
L400(VCORE_1.2V)=1.2V?
L401(VMEM_1.8V)=1.8V?
NO
NO
NO
NO
Download
Change the battery
Resolder OSC100
Check the U101
Yes
Check the clock
OSC100
=26
Mhz
?
Yes
Check the initial operation
SAMSUNG Proprietary-Contents may change without notice
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NO
Check the clock generation circuit
8-4
![](/html/b9/b901/b901f6fbaadbc98dd4aacb4429846e9ce20463ca44ae4872847d1776c5d8b7e9/bg5.png)
Level3Repair
661144CC
000044CCSSOO
332244CC
8-5
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This Document can not be used without Samsung's authorization
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Level3Repair
8-3-2.
LCD Working
Power Switch On
LCD Display
On?
Yes
NO
LCD FPCB
connector is co
rrectly connecti
ned?
Yes
F600, F601,
F602, F603,
F604, F605,
Correctly
606
mounted?
correctly connect
NO
F600,F601,F602,
F603,F604, F605,
F606
F
Resolder
NO
Yes
LCD
Replace
Yes
C609
LED_P_26V=26V?
NO
Replace U604&Check
neighboring circuits
8-6
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This Document can not be used without Samsung's authorization
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Level3Repair
LCD_D(7)
LCD_WR
LCD_RS
LCD_D(0)
F600
OUT1
OUT2
OUT3
OUT4
GND
5
6
7
8
LCD_F(6)LCD_D(6)
910
1
IN1
2
IN2
3
IN3
4
IN4
GND
F603
1
IN1
2
IN2
3
IN3
4
IN4
GND
5
OUT1
6
OUT2
7
OUT3
8
OUT4
GND
9
10
F601
GND
5
OUT1
6
OUT2
7
OUT3
8
OUT4
GND
10
9
CAM_D(7)_FLCD_F(12)LCD_D(12)LCD_F(4)LCD_D(4)
1
IN1
2
IN2
3
IN3
4
IN4
F604
GND
5
OUT1
OUT2
OUT3
OUT4
GND
9
10
LCD_F(9)LCD_D(9)LCD_F(1)LCD_D(1)
6
LCD_F(11)LCD_D(11)LCD_F(3)LCD_D(3)
7
LCD_F(13)LCD_D(13)LCD_F(5)LCD_D(5)
8
LCD_F(15)LCD_D(15)LCD_F(7)
1
IN1
2
IN2
3
IN3
4
IN4
F602
1
IN1
2
IN2
3
IN3
4
IN4
5
OUT1
OUT2
OUT3
OUT4
GNDGND
9
10
CAM_D(5)CAM_D(5)_FLCD_F(8)LCD_D(8)LCD_F(0)
6
CAM_D(6)CAM_D(6)_FLCD_F(10)LCD_D(10)LCD_F(2)LCD_D(2)
7
CAM_D(7)
8
CAM_D(4)CAM_D(4)_FLCD_F(14)LCD_D(14)
F605
1
IN1
2
IN2
3
IN3
4
IN4
5
OUT1
OUT2
OUT3
OUT4
GNDGND
9
10
CAM_D(0)CAM_D(0)_F
6
CAM_D(1)CAM_D(1)_F
7
CAM_D(2)CAM_D(2)_F
8
CAM_D(3)CAM_D(3)_F
F606
1
IN1
2
IN2
3
IN3
4
IN4
GND
5
OUT1
OUT2
OUT3
OUT4
GND
9
10
LCD_CSFLCD_CS
6
LCD_WRF
7
LCD_RSF
8
LCD_RDFLCD_RD
Z
C
C
C
R
R
D
6
6
2
5
5
2
2
2
5
1
1
0
6
5
4
5
8
0
C
R
6
3
0
1
7
8
SIM501
C
C
C
R
6
6
6
3
0
2
7
9
5
0
6
F
1
1
6
8
R
C
C
R
6
6
2
0
6
F
0
0
7
7
ZD504
6
6
1
1
3
3
ZD505
R319
R320 R321 R322
SIM500
ZD300
ZD301
C602
R600
R601
C509
C505
R507
C510
C
6
2
1
C
5
0
4
C603
R
R
R
6
6
6
1
1
1
6
7
8
L602
C623
6
0
6
F
ZD506
1
0
6
F
0
0
6
F
4
0
6
F
3
0
6
F
C
5
0
8
C624
C622
0
0
6
D
Z
C
5
0
C501
3
R
R
R
5
0
5
C
5
5
5
0
0
0
4
8
2
8-7
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Level3Repair
LCD_BL_EN
C614
VBAT
0
0
6
L
8
0
6
C
L601
U604
A1
LX
A2
IN
C3
COMP
A3
EN|SET
B3
PWM
C612
C615
RSET
PGND
D600
LED_P_26
R608
D3
OVP
D2
D1
CS
B1
C1
GND
1
NC
2
NC
LED_N
R612
R609
C609
LCD BACKIGHT IC
Z
R
5
0
3
R
6
2
2
D
5
0
9
C611
C610
C437
R307
R306
C423
D
6
0
0
C
5
2
7
Z
D
C615
5
1
0
C614
C609
R
6
0
8
R
6
0
9
4
U
6
0
5
R
6
1
C601
2
6
0
U
C612
L600
C
6
0
8
R
4
1
0
L601
R
4
0
2
C
4
3
8
C
4
1
2
3
0
6
U
U606
U
6
0
0
C600
1
0
4
U
C
4
1
3
8-8
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Level3Repair
8-3-3.
z
Audio Working
Speaker Working
Operate speaker
NG
Check
Speaker
Contact
YES
Speaker break
down?
NO
NO
ReContact
YES
Change Speaker
Change main PBA
SPK_P
SPK_N
ZD501
ZD503
SPK500
1
1
2
2
1
1
2
2
SPK501
8-9
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Level3Repair
Receiver Working
Operate Receiver
NG
Check
Receiver
Soldering
YES
Receiver break
down?
NO
Change main PBA
RCV_P
NO
Resolder
YES
Change Receiver
RCV500
1
1
RCV_N
ZD504
8-10
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2
2
ZD505
![](/html/b9/b901/b901f6fbaadbc98dd4aacb4429846e9ce20463ca44ae4872847d1776c5d8b7e9/bgb.png)
z
MainMICWorking
Operate MIC
Level3Repair
NG
Pollute
MIC Hole?
NO
L505,R511,C517,
C518,C532 is soldered
operately?
YES
Check
C519=High?
YES
NO
NO
Clean up
MIC hole
L505,R511,C517,
C518,C532 Resoldering
NO
Check
MIC_BIAS_2.15V
=2.15V?
YES
Change MIC
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8-11
Change MIC
Change main PBA
![](/html/b9/b901/b901f6fbaadbc98dd4aacb4429846e9ce20463ca44ae4872847d1776c5d8b7e9/bgc.png)
Level3Repair
MIC500
POWER
POWER
GND2GND1
GND
GND2
OUT
OUT
ALT
SYM
0
0
5
C
I
M
VMIC_BIAS
6
0
5
L
1
3
4
ZD502
C519
C521
L505
C532
ZERO
R511
C517
C518
MIC_OUT_N
MIC_OUT_P
8-12
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Stereo Headset Working
Hands-free stereo
headset
NG
NO
Level3Repair
YES
Check R506Button NG?
MIC NG?
NO
SPK NG?
NO
The End
YES
YES
Check
L504
YES
Resolder L504
Check L501,
L502?
NO
Change Main PBA
YES
Resolder L501,L502
8-13
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Level3Repair
EAR500
L500
R518
R519
L511
EAR_OUT_R
EAR_OUT_L
EAR_3.5_DET
R506
FM_IN
EAR_ADC_3.5
EAR_MIC_P
ZD511
C530
L501
L502
L503
L504
0
0
5
D
Z
3
CON-B
4
CON-C
5
CON-D
6
CON-E
2
CON-A
C531
C515
VMEM_1.8V
C507
R503
C514
3.5 PHI EARJACT
8-14
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Level3Repair
8-3-4.
z
KEY Working
Volume KEY
Press Volume Key
Key NG?
NO
YES
Resolder TACT501,TACT502
Volume key
Still Key NG?
END
YES
Change TACT501,TACT502
Volume key
NG
Still Key NG?
NO
YES
Change PBA
8-15
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Level3Repair
1
0
Z
D
5
0
7
5
C
A
T
2
0
5
C
A
ZD506
KBR(0) KBR(1)
KBC(6) KBC(6)
ZD506
VOL UP
T
2
TAC501
3
1
S1S2
NC
4
NC
5
NC
6
NC
VOL DOWN
ZD507
12
S2
TAC502
3
NC
4
S1
NC
5
NC
6
NC
8-16
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