Samsung SGH-D800 User manual

GSM TELEPHONE
SGH-D800
GSM TELEPHONE CONTENTS
1. Specification
2. Flow Chart of Troubleshooting
3. Exploded View and Parts List
4. MAIN Electrical Parts List
5. PCB Diagrams
6. Block Diagrams

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1. SGH-D800 Specification
1-1
This Document can not be used without Samsung's authorization
1-1. GSM General Specification
E-GSM DCS1800 PCS1900
Freq. Band[MHz]
Uplink/Downlink
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
ARFCN range 975~1023
0~124 512~885 512~810
Tx/Rx spacing 45MHz 95MHz 80MHz
Mod. Bit
rate/
Bit Period
GPRS 270.833Kbps
3.692us
270.833Kbps
3.692us
270.833Kbps
3.692us
EDGE 812.5Kbps
3.692us
812.5Kbps
3.692us
812.5Kbps
3.692us
Time Slot Period/Frame
Period
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
Modulation
GPRS 0.3GMSK 0.3GMSK 0.3GMSK
EDGE 8PSK 8PSK 8PSK
MS Power
GPRS 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
EDGE 27~5dBm 26~0dBm 26~0dBm
Power Level
GPRS 5~19(class4) 0~15(class1) 0~15(class1)
EDGE 8~19(class E2) 2~15(class E2) 2~15(class E2)
Sensitivity -102dBm -100dBm -102dBm
TDMAMux888
Cell Radius 35Km 2Km 2Km
Operating Temperature -20℃~45
℃-20℃~45 ℃-20℃~45 ℃
Supply Voltage 3.7V 3.7V 3.7V
Size and Weight Dimention : 97(H) × 52(W) × 14.9(D) mm
Weight : 96g (with standard battery)

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SGH-D800 Specification
1-2
This Document can not be used without Samsung's authorization
1-2. GSM TX Power Level
TX Power
control level E-GSM
5 33±2dBm
6 31±2dBm
7 29±2dBm
8 27±2dBm
9 25±2dBm
10 23±2dBm
11 21±2dBm
12 19±2dBm
13 17±2dBm
14 15±2dBm
15 13±2dBm
16 11±2dBm
17 9±2dBm
18 7±2dBm
19 5±2dBm
TX Power
control level DCS1800
030±3dB
m
128±3dB
m
226±3dB
m
324±3dB
m
422±3dB
m
520±3dB
m
618±3dB
m
716±3dB
m
814±3dB
m
912±4dB
m
10 10±4dB
m
11 8±4dBm
12 6±4dBm
13 4±4dBm
14 2±5dBm
15 0±5dBm
TX Power
control level PCS1900
030±3dB
m
128±3dB
m
226±3dB
m
324±3dB
m
422±3dB
m
520±3dB
m
618±3dB
m
716±3dB
m
814±3dB
m
912±4dB
m
10 10±4dB
m
11 8±4dBm
12 6±4dBm
13 4±4dBm
14 2±5dBm
15 0±5dBm

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SGH-D800 Specification
1-3
This Document can not be used without Samsung's authorization
1-3. EDGE TX Power Level
TX Power
control level EGSM
8 27±3dBm
9 25±3dBm
10 23±3dBm
11 21±3dBm
12 19±3dBm
13 17±3dBm
14 15±3dBm
15 13±3dBm
16 11±5dBm
17 9±5dBm
18 7±5dBm
19 5±5dBm
TX Power
control level DCS1800
226±3dB
m
324±3dB
m
422±3dB
m
520±3dB
m
618±3dB
m
716±3dB
m
814±3dB
m
912±4dB
m
10 10±4dB
m
11 8±4dBm
12 6±4dBm
13 4±4dBm
14 2±5dBm
15 0±5dBm
TX Power
control level PCS1900
226±3dB
m
324±3dB
m
422±3dB
m
520±3dB
m
618±3dB
m
716±3dB
m
814±3dB
m
912±4dB
m
10 10±4dB
m
11 8±4dBm
12 6±4dBm
13 4±4dBm
14 2±5dBm
15 0±5dBm

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2. SGH-D800 Flow Chart of Troubleshooting
2-1
This Document can not be used without Samsung's authorization
2-1.Baseband
2-1-1. Power ON
'Power On' does not work
Voltage >=3.3V
Download again
Charge the Battery
Pin#J12 >= 2.8V Check U101 and C113
Pin#A13 and
pin#A14 =2.8V Check U101, U107 and U106
Freq = 26MHz
Vrms >=300mV
Vpp≒900mV
Check the clock generation circuit
(related to 3pin of OSC400, C406, R405)
Check the initial operation
END
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
pin#G11 =
1.5V
No
Yes
Check the current consumption
Check the Vbat Voltage
Check the pin of U101
ChecktheclocksignalatC411
Current consumption
>= 100mA

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SGH-D800 Flow Chart of Troubleshooting
2-2
This Document can not be used without Samsung's authorization
R106
R111
G5
VSS1
K4
VSS2
R2
VSS3
P6
VSS4
R13VXVCM
D1XOENAQ
C124
J12
VLDO_2
A13
VLDO_3
B12
VLDO_4
B10
VLDO_5
A14
VLDO_6
C12
VLDO_7
A10
VREF
R14VREGN
M13VREGP
H11
VRTC
K12
VSIM
VDD_IO1
J4
VDD_IO2
C4
VDD_OCTL
E14
VEXT
F15
VIB_DRV
L9VIB_RNG_EN
A12
VL4S_A
B11
VL4S_B
D10
VL5S_A
VL5S_BC9
G11
VLDO_1
J3
VDD1
J13
VDD12
M3
VDD2
N6
VDD3
C11
VDD34
C10
VDD5
B13
VDD67
A6
VDDB
N11
VDDD
L11
VDDV
N5
B1
A2SERLE2
K14
SIM_CLK
J11
SIM_IOK11
SIM_RST
E7TXP
N9
UP_CLK
P10
UP_IO
R10
UP_RST
F14
VACC
E13
VBAT
L2RWN
D6RXTXIN
D7RXTXIP
C6RXTXQN
C7RXTXQP
L8
SCLK_PSC
SDI_PSCM7
N7
SDO_PSC
C2SERCK
SERDA
C1
SERLE1
L7PSW1_BUF
M9PWR_KEEP
C15PWR_SW1N
C14PWR_SW2
B6RAREF1
B5RAREF2
RESETN_CSP
R3
K9RESET_O
F13
RING_DRV
H10
RTC_ALMN
N4RTC_CLK
N10MODE
NC51
2
NC6
E6OCTL0
OCTL1
C5
F5OCTL2
OCTL3
E5
A4OCTL4
OCTL5
G6
B3OCTL6
OCTL7
A3
GND_PSC1
K15
GND_PSC2
L10INTRQ
I|O
L3
G13
LED1_DRV
G12
LED2_DRV
R6MC
M14MICINN
N14MICINP
P15MICOUTN
N15MICOUTPF9
GNDS3
F10
GNDS4
G7
GNDS5
G8
GNDS6
G9
GNDS7
G10
GNDS8
H6
GNDS9
P13
GNDV
F11
GND_HCUR
B4
GND_OCTL
B15
GNDQ
F7
GNDS1
H7
GNDS10
H8
GNDS11
GNDS12H9
J7
GNDS13
J8
GNDS14
J9
GNDS15
J10
GNDS16
K10
GNDS17
F8
GNDS2
DB2
DB3
J5
J6DB4
H5DB5
G3DB6
G4DB7
F4DB8
F1DB9
P3DINTR
F6
GNDB
M10
GNDD
E8
M6DAIDO
P4DAIRN
K1DB0
DB1
K2
F2DB10
F3DB11
E2DB12
E3DB13
D3DB14
D2DB15
K3
M15AUXINP
L13AUXOUTN
K13AUXOUTP
D13
AUX_ADC3
E11
CH_BDRVF12
CH_ISEN
D14
CH_RES
CREFE9
CSN_PSCK8
R4DAICK
L6DAIDI
K7
K5AB8
E10
ADC_AUX1
D15
ADC_AUX2
P5ADC_AUX4
D9AFC
N12AOUTAN
P11AOUTAP
P12AOUTBN
R12AOUTBP
L14AUXINN
K6AB0
AB1
P1
L5AB2
AB3
N1
N2AB4
AB5
M2
M1AB6
AB7
C126
U101
R105
C120
R101
C114C116
R100
VCCD_1_8
VCCD
VBAT
VPAC
C104
C115
VCLOCK
C110
C113
C102
VCCA
VSYN
C101
C106
VCCD
C109
VBAT
VRF
C118
VCCD_1_8_PSC
C111
R113
C107
R112
U103
GND
3
2VOVS1
VCCD
C112
C100
VRTC
VBAT
C105
C117
C108
1
POS
G
10
VCCA
M100
2
NEG
22
3
34
4
55
6
6
7
G
G
8
9
G
CN111
1
1
XOENA
ANT_BAND_SEL
CHECK_ACC
PSW1_BUF
XOENAQ
AOUTBN
AOUTBP
AUXINP
AUXINN
AUXOUTP
AUXOUTN
UP_SDO
UP_SCLK
UP_CS
GSM_TX_EN
DCS_TX_EN
SERCLK
VAPC
TRXIN
TRXQP
TRXQN
AOUTAP
AOUTAN
CLK32K
CLK13M_MC
FLASH_RESET
PWR_ON
JIG_ON
MICINP
MICINN
MICOUTP
MICOUTN
DSP_DB(2)
DSP_DB(1)
DSP_DB(0)
DSP_AB(0:8)
DSP_AB(8)
DSP_AB(7)
DSP_AB(6)
DSP_AB(5)
DSP_AB(4)
DSP_AB(3)
DSP_AB(2)
DSP_AB(1)
DSP_AB(0)
DSP_RWN
DSP_INT
SERLE
SERDAT
DSP_DB(0:15)
DSP_DB(14)
DSP_DB(13)
DSP_DB(12)
DSP_DB(11)
DSP_DB(10)
DSP_DB(9)
DSP_DB(8)
DSP_DB(7)
DSP_DB(6)
DSP_DB(5)
DSP_DB(4)
DSP_DB(3)
AFC
DSP_DB(15)
INTRQ
DSP_IO
TX_BAND_SEL
RX_SEL
PWR_KEEP
RST
RTCALARM
TRXIP
UP_SDI
SIMCLK SIMDATA
SIMRST

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SGH-D800 Flow Chart of Troubleshooting
2-3
This Document can not be used without Samsung's authorization
C408
R400
R401
VRF
R402
C400
C407
C406
C401
C402
R405
VCC
VCON
1
OSC400
2
GND
OUT
34
AFC
CLK26M_RF
CLK13M_YMU
13MHZ_BB
CLK13M_MC
CLK13M_TR
VCLOCK
NC 5
6
VCC
4
Y
U401
A
2
3GND
1NC
GND
4
Q
3
8
VCC
_CLR
2
1_PR
5
_Q
U402
CK7
D6
R407
C409
C412
C411
C413
L408
13MHZ_BB
26M_REF_CLK

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SGH-D800 Flow Chart of Troubleshooting
2-4
This Document can not be used without Samsung's authorization
9
PGND
SW 10
VIN
1
VOUT 6
7
AGND
2AVIN
EN
3
11
GND
MODE/SYNC 8
4NC
5NC
U107
VBAT
C135 C134
L102
R118
VCCD_1_5
C137
VCCD_1_8_PSC
C136
L101
C132
VCCD_1_8_PSC
C133
VBAT
VIN
1
6
VOUT
AGND
2AVIN
EN
3
GND
11
MODE/SYNC 8
4NC
5NC
9
PGND
SW 10
U106
7
VCCD_1_8
R117

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SGH-D800 Flow Chart of Troubleshooting
2-5
This Document can not be used without Samsung's authorization

SAMSUNG Proprietary-Contents may change without notice
SGH-D800 Flow Chart of Troubleshooting
2-6
This Document can not be used without Samsung's authorization
2-1-2. Initial
Initial Failure
The pin #C12 of U101 =
1.8V and
the pin #J12 of U101 =
2.8V ?
Check the U101
(if it has some problem, it is to be replaced.)
Yes
No
Is the pin #K9 of U101
"Low →High" ?
Yes
No Check the U101
(if it has some problem, it is to be replaced.)
There is 32.768kHz wave
forms at the C216 and
C217
Yes
No
Check the U201
Is the pin #3 of U106 &
U107 "High"?
The voltage is "High" at
the C111,C116,C117 Check the U101
Check the U106 & U107
LCD display is O.K?
No
No
Yes
Yes
Yes
Check the LCD part
No
Sound is O.K?
Yes
No
Check the Audio part
END
Yes

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SGH-D800 Flow Chart of Troubleshooting
2-7
This Document can not be used without Samsung's authorization
C217
VSS6
VSS7H10
H11
VSS8
VSS9H12
VSSA_
DR11
VSSA_
UF18
X1RTC
H19
F19X2RTC
VSS12
VSS13L8
M8
VSS14
VSS15M9
M10
VSS16
VSS17M11
M12
VSS18
A18
VSS2
VSS3G8
G9
VSS4
VSS5H8
H9
B16
VDD_IO_1P8_4
VDD_IO_1P8_5C1
C14
VDD_IO_1P8_6
VDD_IO_1P8_7D9
D18
VDD_IO_1P8_8
VDD_IO_1P8_9F1
G18
VRTC
VSS1A2
J12
VSS10
VSS11K8
L7
VDD_IO_1P8_10
VDD_IO_1P8_11L16
P1
VDD_IO_1P8_12
VDD_IO_1P8_13T18
U1
VDD_IO_1P8_14
VDD_IO_1P8_15U5
U12
VDD_IO_1P8_16
VDD_IO_1P8_17W8
W18
VDD_IO_1P8_18
B6
VDD_IO_1P8_2
VDD_IO_1P8_3B12
VDDA_
D
F17
VDDA_
U
VDD_CORE1B8
B13
VDD_CORE2
VDD_CORE3G2
H18
VDD_CORE4
VDD_CORE5M2
N18
VDD_CORE6
VDD_CORE7V7
V13
VDD_CORE8
VDD_IO_1P8_1B4
L4
TCK U14
V14
TDI
TDO T12
TEST1 U15
T14
TEST2
TEST3 V16
TMSW14
R12
TRSTN
TX0
M3
TX1
K7
T11
RX1_IRQ2
8
SIMCLK
P4
T2SIMIO
R3SPCLK0
M18
SPCLK1_PIO18
T3SPFS0
SPFS1_PIO15 N15
SPRXD0
R4
SPRXD1_PIO17 M17
SPTXD0_I2S
D
U2
N16
SPTXD1_I2SD_PIO16
PIO41_IRDAT
X
PIO42_IRDAR
X
R17
N14PIO43_MCI_DAT0_E
N
J16
PIO47
G5PWM1_PIO4
6
RESTNG15
RIO_PIO01
P3
RTCALARMN
H17
N2RTS0_PIO04
V6
RWN
M1RX0_IRQ2
8
L6
P12
PIO31_IRQ6
PIO32
R13
U18
PIO33
PIO34 R14
PIO35_A_A25_BOOTSE L
F2
F16PIO36_USB_OEN
PIO37_USB_DATA
E17
J15PIO38_MCI_CLK
L14PIO39_MCI_CMD_EN
PIO40_MCI_DAT_EN
M14
R16
PIO19_PWRKEEP
PIO20_SYSCLKREQ
P19
K13PIO21_MCI_DAT0
PIO22_MCI_DAT1
L12
L13PIO23_MCI_DAT2
PIO24_MCI_DAT3
L15
V19PIO25
PIO26
U16
PIO27
U19
W17PIO28
E14 PIO30_WAITN
2
G16OSC32OUT
PIO00_IRQ5 P16
PIO07_USB_SUSP
B19
PIO08_MCI_CMD
J13
C19PIO09_USB_VPI
PIO10
V17
PIO11_USB_VMI
C18
D17PIO12_USB_VPO
PIO13_USB_VMO
E16
P5PIO14_SIMRST
P15
KEYBRD1
1
H2
J5KEYBRD2
KEYBRD3
J4
J8KEYBRD4
KEYBRD5_PSW1_BUF
H6
H4KEYBRD6
KEYBRD7
H1
H3KEYBRD8
KEYBRD9
G6
1
NC1
NC2
INT0
IO W6
V12
IOBIT0_PIO05
IOBIT1_PIO06 N11
IRQ1 M16
M19
IRQ2
IRQ3 P17
P18
IRQ4
J7KEYBRD0
KEYBRD1
J6
G4KEYBRD1
0
D_D14
D_D15 P11
R7
D_D2
D_D3 T7
R8
D_D4
D_D5 V8
U8
D_D6
D_D7 T8
T9
D_D8
D_D9 R9
FLASHRSTN
H14
T15
D_A5 T5
V4
D_A6
D_A7 N6
R6
D_A8
U6
D_D0
D_D1 T6
P8
D_D10
D_D11 P9
N8
D_D12
D_D13 N9
N10
CKO_IACK
T17
CPTSTSTOP_CK O
CTS0_PIO29
M6
N5DCD0_PIO44
P2DSR0_PIO02
DTR0_PIO03
N4
V1
D_A0
D_A1 W2
W3
D_A2
D_A3 V3
U4
D_A4
A_D2
A_D3
G10
G11 A_D4
A_D5
F11
E11 A_D6
A_D7
G12
D11 A_D8
A_D9
E12
A_OEN
B14
D14 A_WEN
W12
CKI
N12
F15 A_CS6N
A_CS7N
B17
A8 A_D0
A_D1
E9
C12 A_D10
A_D11
A12
F12 A_D12
A_D13
D12
E13 A_D14
A_D15
D13
F9
E7
C4 A_A8
A_A9
C2
H16 A_BE0N
A_BE1N
A17
A14 A_CS0N
A_CS1N
C15
G14 A_CS2N
A_CS3N
J14
D15 A_CS4N
A_CS5N
C16
D2
A_A2
D8
E4 A_A20
A_A21
E3
F5 A_A22
A_A23
F4
F3 A_A24
A_A3
A6
C6 A_A4
A_A5
C5
D7 A_A6
A_A7
A_A1
C8
A3 A_A10
A_A11
B3
B1 A_A12
A_A13
D6
D5 A_A14
A_A15
D3
E8 A_A16
A_A17
F8
A_A18
E6
A_A19
U201
M4
ATCK_CTS1
ATDI_RTS1 L5
T13
ATDO_PWM2
ATMS_PIO45 K12
B7 A_A0
VCCD_1_5
C204
1
OSC20
0
2
VCCD_1_8
C216
VRTC
DSP_TMS
TR_RST
DEBUG_TXD
SDS_TXD
DSP_RWN
DEBUG_RXD
SDS_RXD
SIMCLK
SIMDATA
UP_SCLK
PCM_CLK
UP_CS
PCM_SYNC
UP_SDO
PCM_RXD
UP_SDI
PCM_TXD
DSP_TCK
DSP_TDI
DSP_TDO
USB_VPO
USB_VMO
SIMRST
PWR_KEEP
XOENAQ
CODEC_PDN
AS2
EAR_SWITCH
NAND_INT
AS4
CF
USB_CON
USB_OEN
USB_DATA
AS3
UPPER_EL_EN
BL_CONT
CHG_EN RTCALARM
DEBUG_RTS
KEY_COL(0)
KEY_COL(1)
KEY_ROW(4)
KEY_ROW(5)
KEY_COL(2)
KEY_COL(3)
KEY_COL(4)
PSW1_BUF
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
CLK32K
FLIP_SNS
USB_SUSP
USB_DET
AMP_EN
DSP_DB(2)
DSP_DB(3)
DSP_DB(4)
DSP_DB(5)
DSP_DB(6)
DSP_DB(7)
DSP_DB(8)
DSP_DB(9)
DSP_INT
DSP_IO
USB_CHG_EN
CHG_COMPLETE
INTRQ
JACK_INT
YMU_IRQ
HERA_INT
DSP_AB(1)
DSP_AB(2)
DSP_AB(3)
DSP_AB(4)
DSP_AB(5)
DSP_AB(6)
DSP_AB(7)
DSP_AB(8)
DSP_DB(0)
DSP_DB(1)
DSP_DB(10)
DSP_DB(11)
DSP_DB(12)
DSP_DB(13)
DSP_DB(14)
DSP_DB(15)
A(18)
A(17)
A(16)
A(15)
A(14)
A(13)
A(12)
A(11)
A(10)
A(1)
A(0)
CP_TCK
CP_TDI
CP_TDO
CP_TMS
CLK13M_TR
DEBUG_CTS
MAIN_EL_EN
BT_EN
M_HOLD
DSP_AB(0)
D(2)
D(15)
D(14)
D(13)
D(12)
D(11)
D(10)
D(1)
D(0)
YMU_CS
HERA_CS
RAM1_CS
ONENAND_CS
ROM1_CS
UPPER_BYTE
LOWER_BYTE
A(9)
A(8)
A(7)
A(6)
A(5)
A(4)
A(3)
A(24)
A(23)
A(22)
A(21)
A(20)
A(2)
A(19)
CHG_DET
FLASH_RESET
CP_WEN
CP_OEN
D(9)
D(8)
D(7)
D(6)
D(5)
D(4)
D(3)
A(0:24)
D(0:15)
DSP_DB(0:15)
DSP_AB(0:8)
KEY_COL(0:4)
KEY_ROW(0:5)

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2-8
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2-9
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2-1-3. Sim Part
Check the voltage at
pin#1 of CN111 >=
2.8V ?
"Insert SIM is displayed on the LCD
Check the SIM
connector's (CN 111)
connection to SIM card
Check the U101
Resolder or change CN111
END
No
Yes
Yes
Yes
Yes
No
No
Is there any signals
pin#2,#3,#6 of CN111 ? Check the U201
Check the SIM Card

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2-1-4. Microphone Part
Is the assembled status
of microphone O.K?
Microphone does not work
Reassembled the microphone
Resolder or change
R509,R510,R512,R514,R516,R518,
C507,C511
END
No
Yes
Yes
Yes
Yes
No
Is microphone ok?
No
Check U101
Check the reference voltage on mic path
C112 ≒2.8V ?
Yes

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R519 C515
C511
C513
VCCA
R518
C516
C517
R524 C519
R517
R523
C507
C509
R514
C512
R512
R516
R522
R520
R509
R510
R521
C518
R513
AUXOUTP
MICINP
MICOUTP
MICINN
MICOUTN
AUXOUTN
AUXINN
AUXINP
MAIN_MIC_N
MAIN_MIC_P
EAR_MIC_N
EAR_MIC_P

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2-1-5. Speaker Part_1(MP3, SPEAKER PHONE)
There is no sound from the Speaker
Is the terminal of Speaker
O.K ?
No
Replace the Speaker
Yes
Are there any signals at
the L500, L501
No
Yes
Check U500
Whatisthetypeof
sound from the
Speaker
Is there any signals
at the pin#19 and
pin#20 of U301 ?
Is there any signals
at C503, C505 ?
MP3 SPEAKER PHONE
The pin #2,
#10ofU501is
"High"
The pin #2,
#10ofU501is
"High"
Check U301 Check U101
Yes Yes
NoNo
Check U201
Yes Yes
No No
END

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R503
C503 R500
R504
R501
R508
L501
L500
C504
C502
C505
C500
V
BA
T
R506
C534
VOM 12
VOP 9
VREF
1
5
VSS
6
VSS
11
VSS
10
VSS
C535
7
VDD
VDD
8
13
VDD
VDD
14
VDD
15
VDD
16
2
VIM
3
VIP
U500
4
EN
GND
17
18 NC
NC19
VBAT
C544
C543
MP3_MONO_N
MP3_MONO_P
AOUTBN
AOUTBP
AMP_EN AMP_OUT_P
AMP_OUT_N
C301
R301
CODEC_2_8
R303
C317
C313
C319
C314
C32
CODEC_2_8
CODEC_2_8
C303 C302
SDTO
12
SPN19
SPP20
VCOM
2
MUTET
25
NC
37
38
NC
PDN
7
RIN1/IN1+
32
RIN2/IN2-
2926
ROUT
11
SDTI
6I2C
31
LIN1/IN1-
30
LIN2/IN2+
27
LOUT
LRCK
13
MCKI
17
MCKO
18
MPWR
1
GND
33
34
GND
GND
35
36
GND
HPL
24
HPR23
HVDD21
HVSS22
AVSS
3
BEEP
28
14
BICK
CCLK/SCL
910
CDTI/SDA
8CSN/CAD0
15
DVDD
DVSS
16
U301
ACOC
5
AVDD
4
C316
C318
R302
C397
R300
MP3_L
CAM_SDA
CAM_SCL
D_BCK
MPEG_MIC_N
MPEG_MIC_P
MP3_MONO_P
MP3_MONO_N
D_SDIN
D_SDOUT
CODEC_PDN
D_MSCK
D_LRCK
MP3_R

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2-1-6. Speaker Part_2(RECEIVER)
There is no sound from the Speaker
Is the terminal of Speaker
O.K ?
No
Replace the Speaker
Yes
Are there any signals at
the PIN#7, #15 of U501
No
Check U501
Yes
The pin #2, #10
of U501 is "Low"
No
Check U201
Are there any signals at
the PIN#8, #16 of U501
Yes
No
Check U101
Yes
Check U201
END