Level
8.
Block Diagram
8-1.
Repair
3
SAW
BT ANT
LCD Module
Back Light Driver
1.3M Camera
SAW
BT Module
Option
FLM,LCD RD
LCD_RS
LCD_DATA(0:7)
LCD_RST,RS,WR
EN_LCD_BL
CAM_SCL, RST
CAM_SDA
CAM_VSYNC HBYNC
CAM_DATA(0:7)
CAM_MCLK_OUT
CAM
EN_CAM_PWR
LDO
CLK26M_BT
BT_RST
BT_REQ_CLK
PCM_CLK
PCM_SYND
PCM_TXD
PCM_RXD
UART2_TXD
UART2_RXD
BASE Band
Catfish 118
PMB8808
DCS1800/PCS190_RX
GSM850/900_RX
BS1/BS2
TX_EN
VLOGIC
RAMP
HB / LB _TX
AD(0:15)
A(16:24)
DETECT_SD
SD_CMD
SD_CLK
SD_DATA(0:3)
SIM_RST
SIM_CLK
SIM_I/O
256M_NOR+128M_PSRAM
2G PAM
SWITCH
Module
MEMORY
SD
Socket
SIM
Socket
Main ANT
RF
SW
SD
CARD
SIM
CARD
FM_ANT
3.5 pi
Socket
EAR_PHONE
EAR_3.5
L/R
EAR_KEY
FM
LNA
COMP
EAR_ADC
FM_LNA_SW
FM_LNA_OUT
3.5_DETECT
EAR_SPK_L/R
RCV P
RCV N
SPK P
SPK N
Main Key
CON
Key_ROW(0:4)
ONKEY_N
RCV
SPK
8-1
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PCB Diagrams
8-2.
8-2-1.
Top
8-2
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8-2-1.
Bottom
ONE
R
N
STAR
L
E
D
5
0
1
2
5
R
F
O
U
V
S
E
E
2
1
2
C
5
2
5
R
1
0
0
5
D
E
L
E
EIGHT
O
F
I
V
R
Z
E
C522C523
L
E
D
5
0
3
R524
0
2
C
5
R
2
5
3
2
0
5
D
E
L
THREETWO
SIX
NINE
P
A
S
R
H
8-3
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8-2-3
SUB TOP
E
N
O
_
T
F
O
S
D
N
E
S
T
F
E
L
UP
OK
DOWN
T
H
G
I
R
O
W
T
_
T
F
O
S
D
N
E
8-4
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Level3Repair
8-2-3
SUB BTM
8-5
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Flow Chart of Troubleshooting
8-3.
presetting methods for checking TP
※
GND&TP(exp. VBAT=
-
look over the coming out signal.
-
C10
6, C220, C323
using Oscilloscope
)
GND
Oscilloscope
←
TP(Test Point)
8-6
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Multi-meter
←
Level3Repair
EX) to look up the TP, shunt Cap.
-
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Checking the TP(test point) using Multi-meter
←
if checking the GND, you can listen"beep"
-
if checking the Signal, you can't listen it.
8-7
Level3Repair
8-3-1.
Power On
Power On'does not work
'
Check the Battery Voltage
is more than
TP:
(
C525 C513 C512
VDD_1.8V
(
Yes
Yes
=1.8
TP: C205)
3.7V
V?
No
No
Change the Battery
Because of batt. power low)
(
Check the Main Chip related to
SD1_FB=1.8V(TP:C231)
to lookover the Chip damage)
(
Yes
Check the Clock at
UCP200 A11pin
CLK26M)
(
TP:OSC201
(
END
=26M
1,3
Yes
HZ
pin
Check the Main Chip
to lookover the Chip damage)
No
)
(
OSC201
(TP:
using the oscilloscope)
pin/look over the
1,3
waverform
8-8
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Level3Repair
BTC500
1
1
2
2
3
3
4
NC
5
NC
6
NC
7
NC
BATT.CON
LEDDRV
USE AS GPO
LEDFBN
LEDFBP
SENSEN
SENSEP
FE1
FE2
FMRIN
FMRINX
FSYS1
FSYS2
FSYS_EN
HSL
HSR
XO
XOX
ONOFF
SD1SW
0.3T
SD1_FB
ROUTE FROM C236(0.1T)
ADV_N
RD_N
RESET_N
TRST_N
WAIT_N
WR_N
TRIG_IN
T2IN
VBAT
0
0
5
D
1
0
5
V
USIF2_TXD_MTSR
L8
K10
L6
M6
B16
A14
M10
M11
G11
F11
K15
R14
T14
A11
B11
R9
R7
T6
R3
J1
L13
H15
J6
R4
K16
B4
C13
C
5
0
UART2_TXD
C227
C228
3
0
4
C
S
VDD_1.8V
5
1
2
5
C525
0
0
C300
1
3
0
C231
CLOSE TO THE PIN
C
3
1
5
C
D
5
1
R
5
2
0
U
5
0
BTC500
V50
V
5
0
0
8
0
3
R
4
1
5
C
0
R309
0
5
L
R306
3
R
6
3
2
C
R300
1
0
3
Q300
Q
3
2
0
R
C214
L
0
2
1
1
3
2
C
T
P
_
C
7
S
_
1
F
l
a
s
2
TP_WAITn
h
_
R
R
O
M
6
0
2
C
C
2
2
3
3
4
2
C
C
2
5
3
C224
6
4
1
0
2
2
C
C
C215
0
0
C
C
2
2
5
1
2
2
3
6
2
C
TP_WEn
TP_MEM_CLK
2
C
3
7
R510
4
0
2
R
T
P
_
n
D
R
C503
S
F
D
D
V
_
P
5
T
2
R
0
9
Z
0
D
6
C
P
U
5
O
S
C
2
0
1
C
2
0
0
1
0
C
2
C
2
8
1
C
2
2
0
7
1
C
2
C
1
2
7
C512
C513
C525
R520
VF
C514
EN_MAIN_KEY
L9
SENSE_N
SENSE_P
L200
BS1
BS2
ISOLATE
CLK26M_BT
BT_REQ_CLK
EAR_SPK_L
EAR_SPK_R
L201
ONKEY
ADVn
RDn
WAITn
WEn
NOISY
VDD_IO1_1.8V
RST_BB_J
R208
RST_BB
TRSTn
3.5_DETECT
R209
PMB8808
L8
LEDFBN
K10
LEDFBP
L6
SENSEN
M6
SENSEP
B16
FE1
A14
FE2
M10
FMRIN
M11
FMRINX
G11
FSYS1
F11
FSYS2
K15
FSYS_EN
R14
HSL
T14
HSR
A11
XO
B11
XOX
R9
ONOFF
R7
SD1SW
T6
SD1_FB
R3
ADV_N
J1
RD_N
L13
RESET_N
H15
TRST_N
J6
WAIT_N
CLK26M_BT
BT_REQ_CLK
EAR_SPK_L
EAR_SPK_R
ONKEY
ADVn
RDn
TRSTn
WAITn
SENSE_N
SENSE_P
BS1
BS2
ISOLATE
L200
RST_BB_J
RST_BB
NOISY
L201
VDD_IO1_1.8V
5
0
2
C
TP_WEn
TP_MEM_CLK
C
2
3
7
C214
7
1
2
TP_WAITn
R
L
0
2
1
6
3
2
C
6
1
0
3
2
2
C
C
C
2
2
3
3
4
2
C
5
2
C
3
C224
4
6
0
1
C
2
2
2
5
C
C
2
2
6
2
C227
FM_LNA_OUT
C
C215
OSC200
3
2
C
3
C228
CLOSE TO XO(SHIELD & CUT FILL)
OSC201
VDD_1.8V
21
3
C211
R
O
_
E
Z
D
A
_
P
T
R510
4
0
2
R
R
D
n
_
P
T
T
P
_
C503
C
S
_
S
F
l
F
a
s
h
D
_
D
R
O
V
M
_
P
R
T
5
0
9
0
0
2
P
C
U
C
2
1
3
H
D
C
5
0
0
Z
6
0
D
5
O
S
C
2
0
1
T
H
2
0
0
0
0
2
C
1
2
C
0
8
0
2
2
C
1
2
C
5
0
2
R
7
2
C
1
C
1
0
8
1
R
2
7
C
C
1
1
1
3
D
X
1
2
R
1
5
1
C
_
D
X
T
_
T
R
A
U
_
P
T
T
R
A
U
_
P
T
R116
R115
0
0
1
U
4
P
O
_
A
T
W
D
_
T
P
_
C
T
S
_
R
A
M
n
D
V
A
_
P
C208
T
C231
R208
CLOSE TO THE PIN
8-9
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Level3Repair
8-3-2.
Initial
Initial Failure
Yes
CN200(RST_BB_J
using the oscilloscope GND
) > 1.7V?
SHORT PAD.
Yes
Check the16bit data signals.
Yes
END
&
ST_BB_J)must be higher than
R
No
Resolder UCP
200
1.7
V.
RST_BB_J
TRSTn
TXD1_J
RXD1_J
VDD_IO1_1.8V
CN200
4
0
2
C
3
2
1
1
2
TMS
TDI
TCK
TDO
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
7
7
1
2
TP_WAITn
R
6
0
2
C
C
2
3
4
3
5
2
C
C224
4
6
0
1
2
2
5
C
C
2
2
C
C215
_
R
T
P
D
n
T
P
_
C
S
_
S
F
l
F
a
s
D
h
_
D
R
V
O
_
M
P
T
P
2
0
0
C
C
C
2
2
2
1
6
3
R
C503
9
R
0
5
6
0
5
D
U
Z
0
2
C
0
2
2
C
0
8-10
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Level3Repair
8-3-3.
Charging Part
Abnormal charging part
Yes
Check the Battery&TA
connection.
Yes
R304
> 4.9V?
Yes
No
No
be possible that it's not soldering well)
(
Reinsert the Battery or TA.
Resolder R304
Check the Q304 pin
>4.9V ?
Yes
END
4
No
Replace Q304 usingaHeatgun
8-11
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※
CS
PARALLEL FROM R310(0.1T)
VBAT
Q300
1
6
2
5
34
N
_
E
S
N
E
S
0.1,1%R306
TNHSVBSC
VDDCHG
P
_
E
S
N
E
S
1
2
5
6
1005
CHARGING CIRCUIT
Q301
VBUS_5V_OUT
R300
R302
3
4
VCHG
C
5
0
5
2
5
C
1
1
5
3
C
C525
0
0
5
D
1
0
C300
R
5
2
0
U
1
3
0
5
BTC500
5
V
V
5
0
0
8
0
3
R
4
1
5
C
0
R309
0
5
L
R306
0
3
R
R300
1
0
3
Q300
Q
2
0
3
R
R308
R309
8-12
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