Samsung SGH-P400 Schematics
SGH-P400 Flow Chart of Troubleshooting
KEY_COL(2)
KEY_ROW(0)
RTCALARM
PWR_KEEP
Q100
3
2
CN100
6
6
11
5
5
22
VBAT
3344
54
UP_RST
53
UP_CLK
52
UP_IO
44
ADC_AUX1
45
ADC_AUX2
56
ADC_TRIG
3
VACC
2
VBAT
1
VEXT
43
BTEMP
46
PWR_SW1N
47
PWR_SW2
13
RTC_ALMN
21
PWR_KEEP
20
PSW1_BUF
14
INTRQ
15
SDI
16
SDO
17
SCLK
18
CSN
22
EN_3
23
EN_4[0]
24
EN_4[1]
25
EN_5
26
EN_5A
27
EN_5B
55
RING_PWM
57
GND
58
GND
59
GND
60
GNDG
7GG89GG10
49
50 51
K
SIM_CL
SIM_RST
5
C101
33PF
48
29
M
VSI
SIM_IO
U100
VIB_DRV
RING_DRV
4
7
C106
100NF
30
VREF
CREF
LED1_DRV
LED2_DRV
8
628
GNDQ
VRTC
R102
330K
C100
100NF
SIMRST
SIMCLK
SIMDATA
TA_VEXT
PWR_ON
JIG_ON
UP_SDI
UP_SCLK
UP_CS
EN_VRF
EN_VPAC
XOENA
C104
33PF
C103
33PF
R1130
C102
2.2UF
R101
NC
1
VLDO_7
GNDD1
VDD67
VLDO_6
VL5S_A
VL5S_B
VLDO_5
VDD5
VL4S_A
VL4S_B
VLDO_4
VDD34
VLDO_3
VRTC
VLDO_2
RESETN
VLDO_1
VDD12
VBAT
C105
1UF
VREF
VCCA
VBAT
1UF
C114
2.2UF
VCCB
C109C108
1UF
VRF VPAC
C111 C112
1UF
R105
10
C115
10NF
470NF
RST
C113
100PF
VRTC
R103
1.2K,1%
1
POS
NEG
2
M1
VOSC
40
41
42
32
31
33
VCC_1.8A
1UF
C110
1UF
VCCD
C117C116
1UF
34
36
35
37
38
39
12
11
19
9
10
TA_VEXT
CHG_DET
VCCD
R110
NC
3
2
R112
0
BACKLIGHT_1
BACKLIGHT_2
4
U101
ISENSE
6
1
DRIVE
GND
5
2
VSENSE
3
4
VCC
PROG
R111
Q102
10K,1%
1
CHG_ON
C119
10UF
10V
U102
6
1
2
3
R107
47K,1%
5
4
3-2
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Q101
3
TA_VEXT
6
5
2
1
R109
3K
R108
10K,1%
C118
10UF
6.3V
VBAT
ICHRG
SGH-P400 Flow Chart of Troubleshooting
VBAT
VCCD
SVC_RED
CAM_D(14)
CAM_D(12)
CAM_D(10)
CAM_D(8)
LED_EN
CAM_OEN
SPK1P
RST
CAM_D(0)
CAM_D(2)
CAM_D(4)
CAM_D(6)
CAM_A
EL_EN
C202
1NF
C217
33PF
C203
33PF
R200 10
C204
33PF
C218
33PF
C205
C206C 209
10NF
33PF
C219
C220
33PF
33PF
C201
330NF
CN200
34
17
17
34
33
16
16
33
32
15
15
32
31
14
14
31
13
30
13
30
29
12
12
29
11
28
11
28
27
10
10
27
9
26
9
26
8
25
8
25
7
24
7
24
6
23
6
23
5
22
5
22
4
21
4
21
3
20
3
20
19
2
2
19
1
18
1
18
C208
C207
33PF
33PF
C222
C221
33PF
1NF
C223
33PF
33PF
R205
0
C200
100NF
C210
33PF
C224
33PF
C211
33PF
C225
33PF
33PF
C226
33PF
C213
33PF
C227
33PF
C214C212
33PF
C228
33PF
C215
33PF
C229
33PF
C216
33PF
SVC_BLUE
SVC_GREEN
CAM_D(15)
CAM_D(13)
CAM_D(11)
CAM_D(9)
YMU_VIB_EN
SPK1N
CAM_D(1)
CAM_D(3)
CAM_D(5)
CAM_D(7)
CAM_WEN
CAM_CLCD_EN
C230
33PF
IRDA_EN
IRDA_RX
IRDA_TX
VCCB
VBAT
VCCD
C232
1UF
C231
1UF
LED200
1
GND1
2
NC
3
VC C
4
AGND
5
SD
6
RXD
7
TXD
8
VLED
SHIELD
GND2
GND3
9
10
11
TP200
TP201
TP202
TP203
TP204
TP205
TP206
TP207
TP208
TP209
TP210
100PF
C234C233
100PF
C235
C236
C237 C241
100PF
100PF
C238
100PF
C240C239
100PF1 00PF
100PF100PF
3-4
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CP_WEN
CP_TDO
RST
CP_TDI
CP_TMS
CP_TCK
DSP_TDO
DSP_TDI
DSP_TMS
DSP_TCK
SGH-P400 Flow Chart of Troubleshooting
VCCD
R300
47K
DLC_DETECT
SDS_TXD
SDS_RXD
DEBUG_TXD
DEBUG_RXD
DEBUG_DTR
DEBUG_CTS
DEBUG_RTS
DEBUG_DCD
JIG_ON
DEBUG_DSR
DEBUG_RI
TA_VEXT
BP_VF
VCCD
R301
47K
R3081 K
1KR302
R303
1K
R3041 K
1KR305
R306
1K
VCCD
R307
220K
VBAT
CN300- 1
DLC_DETECT
1
SDS_TXD
2
SDS_RXD
3
DEBUG_TXD
4
DEBUG_RXD
5
6
DEBUG_DTR
7
GND
8
DEBUG_CTS
9
DEBUG_RTS
10
GND
11
DEBUG_DCD
12
JIG_ON
13
VTEST
14
DEBUG_DSR
15
DEBUG_RI
16
VEXT
17
VEXT
18
GND
19
CF
20
BP_VF
21
VBAT
45
45
ZD303
ZD305 ZD307ZD304
ZD306
ZD308
22
ZD302
3
123
ZD300
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1
2
ZD301
3-6
C300
C301
100NF
220NF
SGH-P400 Flow Chart of Troubleshooting
VCCD
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
YMU_VIB_EN
YMU_SPK1P
YMU_SPK1N
AOUTAP
SPK1P
YMU_SPK1P
MICIN
MICOUT
AUXIN
AUXOUT
R409
C410
NC
R401
12
56K
C418
NC
R415
10 1
NO2
9
COM2
8
IN2
7
NC2
6
GND
VCCA
R411
680
C416
33UF
56K
U400
R407
10K
R413
10K
V+
NO1
COM1
IN1
NC1
C415
NC
2
3
4
5
C409
1UF
C417
1UF
R412
2.2K
C400
100NF
R410
2.2K
R400
100K
R402
12
C420
8PF
AOUTAN
SPK1N
AUDIO_AMP_EN
YMU_SPK1N
C411
33PF
MAIN_MI C
CP_OEN
D(1)
D(0)
CP_WEN
YMU_EN
A(0)
C405
NC
CLK13M_YMU
YMU_LED
YMU_IR Q
RST
AOUTBN
JACK_IN
AOUTBP
26
27
28
29
30
31
32
C407
220PF
25
D1
D0
/WR
/CS
A0
/RD
IOVDD
1
ZD405
C4018
1NF
24 23
D2
CLKI
2
D4
U401
/IRQ
4
D522D621D7
/RST
NC
5
6
R408
C413
1NF
ZD402
R
MT
SPOUT
SPVDD
EQ3
EQ2
EQ1
HPOUT-R
HPOUT-L/MONO
VDD9VREF
VSS
PLLC
7
8
C408
100NF
3.3K
C412
4.7UF
6.3V
ZD401
C4020
150PF
16
SPVSS
SPOUT
15
14
13
12
11
10
VCCD
JACK_IN
R403
C403
22NF
C421
4.7NF
C414
100NF
EAR_SPK_N
EAR_MIC_N
EAR_SPK_P
EAR_MIC_P
R414
R416
ZD403
NC
120K
R405
33K
C401
120PF
R421
56K
0
150PFC419
VBAT
R404
82K
C402
100NF
C404
4.7UF
6.3V
CN401
6
5
4
3
2
1
D3
D
LE
3
C4019
1NF
17
18
19
20
1
2
R417
NC
VCCA
R418
18K
R420
10K
Q400
2
VCCD
R419
1K
3
EAR_SWITCH
1
3-8
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