ViewSonic N3752w-1M, Service Manual

Page: 58 / 111

8.3. MT8202 PBGA 388
MTK modify
B+ & GND
AUTO_FINE_TUNE
LVDS DATA
VGA
YPbPr
S
AV
NTSC
AUDIO OUT
I2S SWITCH
HDMI or ATSC AV
DDR
FLASH MEMORY
MTK modify
VGAHSYNC_1
F_D[0..7]
ADC_IN3
HDMIDE
GPIO16
SOY0
CVBS0
RED+
TESTP3
HDMICEN
SB33B
MPX1
HDMISD3
SB18A
LVDS_GND
XTALVDD
AUDIO_GND
GPIO11
GPIO7
VFE_GND
PR0+
CLK1+
VFE_GND1
SDV25A
INT0_1
IRRCVR
GPIO17
VPLLVDD1
PB0+
LVDDC
TXD1 GPIO5
AVICM
HDMIODCK
UP3_0
SY0
A_WE_1
AL
TESTN3
VREF
A_BA[0..1]
BLUE-
DV18A
PLLVDD2
ADCVDD
AOMCLK
GPIO8
VPLLVDD2
AP[0..3]
Y0-
DE
PB0-
IOWR_1
ICE
AVDD_VAD1
LVDDB
ADIN
IOSCL
GREEN-
REFP
27MHZ
AVDD_VFE1
TXD UTXD
A_DQM[0..1]
PWM2VREF
SCL1
A_RAS_1
IOSDA
A_CLK
GPIO13
GPIO9
HDMISD0
PWM1
DV25A
TESTP4
RXD1
AOBCLK
HDMILRCK
AOSDATA2
A_CLK_1
REFN
RXD1
HDMIHSYNC
ADACVDD
DACFS
SDA1
CLK1-
AN[0..3]
A_DQS[0..3]
GPIO14
AOSDATA3
PLLVDD1
AOSDATA1
HDMISD1
HDMIBCLK
GPIO15
PLLVDD3
IOA[0..7]
RXD
GPIO3
GPIO2
TESTN4
LVDDA
F_OE_1
PWM0
A_CAS_1
AOLRCK
RED-
VGASOG
A_DQ[0..31]
HDMIVSYNC
CVBS1
IOCE_1
SC0
AR
TXD1
A_CKE
GPIO10
HDMIMCLK
A_CS_1
PR0-
AOSDATA0
VI[0..23]
AADCVSS
BLUE+
F_A[8..21]
HDMISD2
INT0_1
AVDD_VAD0
VGAVSYNC_1
TXD
AVDD_VFE0
GREEN+
GPIO4
URST_1
A_RA[0..11]
AADCVDD
Y0+
RXD1 GPIO6
RXD URXD
ERO3_GPIO
VIDEO_OUT
CCIR_GPIO_D
SDA0
SCL0
XTALI
AUD_CTRL
READY#
TUNER_SW
DE
DCLK
RED_LED
GREEN_LED
SB33A
SC
0
HDM
IL
RCK
VI9
GND
PWM1
A_BA0
GND
A_CLK_1
A_
D
Q
1
1
A_DQ31
A_DQ30
GND
F_D1
SB18A
AAD
C
VSS
SD
A1
TESTP3
RE
F
P
VI6
A_
D
Q
6
DACFS
F_A
10
PLLVDD3
GND
A_RA0
A_DQ14
A_
D
Q
4
LVDS_GND
LVDS_GND
AP1
SDV25A
IOA1
F_A
20
F_A17
VFE_
G
N
D
GND
A
A
DCV
DD
C
VBS1
RE
F
N
SC
L
1
HDM
IS
D3
GND
VI1
A_RA11
F_D6
F_A
21
AN3
VR
EF
A_
D
Q
S1
LVDS_GND
GND
URX
D
GND
AL
MPX1
AVD
D
_
VFE1
DV
18A
VI1
9
VI7
VI4
HDMICEN
R
EAD
Y#
GP
IO
11
A_
D
Q
9
GND
A_DQ22
ADCVDD
F_A15
IO
A6
GP
IO
16
GP
IO
13
GP
IO4
AO
SD
ATA5
GND
SB33A
DCLK
VIDEO_OUT
GND
VFE_
G
N
D
1
GND
GND
AC
EN
T
PR
0
-
Y0
+
HDM
IS
D1
HDM
IM
CLK
VI15
CLK1+
PLLVDD2
DV
25A
A_DQ18
A_DQ26
LVDS_GND
ADC_IN2
ADC_IN4
F_D4
GP
IO
10
GND
GND GND
VFE_
G
N
D
1
PLLVDD1
TESTP1
BL
U
E+
HDMIODCK
A
O
LRCK
TESTN4
LVDS_GND
A_RA3
A_
D
Q
1
2
A_
D
Q
8
AN0
A_DQ23
A_DQ24
F_D0
IO
A7
F_A
9
AO
SD
ATA0
UP
3_4
URS
T
_
1
UT
X
D
AD
AC
VD
D
VFE_
G
N
D
VG
AH
SYN
C
_
1
HDM
IS
D0
VI5
A_DQ13
GP
IO2
A_RA2
A_
D
Q
0
A_CAS_1
GND
GND
A_DQ29
F_A
19
F_D3
AO
SD
ATA1
DV25A
DE
GND
GND
LVDDB
AVD
D
_
VFE0
VFE_
G
N
D
1
Y0
-
VI1
8
VI2
27MHZ
DV25A
DV25A
LVDS_GND
LVDS_GND
LVDS_GND
A_
D
Q
2
TESTP4
A_DQ28
F_A
8
F_A16
GP
IO3
IN
T0_1
A_DQ19
XTALO
GND
DV
33A
ID
T
_
O
E
IO
A2
A_DQ27
LVDS_GND
IO
SC
L
DV33A
XTALO
DACVDDA
GP
IO6
GP
IO5
A_RA7
DACVREF
F_D7
DV
18A
GND
VFE_
G
N
D
VFE_
G
N
D
1
TESTN
2
MPX2
VFE_
G
N
D
1
PB0
-
CCI
R_GP
IO
_D
A
UD_CT
RL
VI2
0
VPLLVDD1
G
R
EEN
+
DACVDDB
AO
SD
ATA2
GND
A
UDI
O_GND
HDM
IS
D2
VI14
GND
VI3
A_
D
Q
M0
A_RAS_1
AP3
A_DQ21
AP0
GND
GP
IO8
A_RA9
A_RA5
LVDS_GND
TXD1
GND
GND
AAD
C
VSS
VG
ASO
G
BL
U
E-
VI2
2
VI16
VI13
VI10
VI0
HDMIHSYNC
DV18A
AN2
LVDS_GND
A_WE_1
PWM0
ERO3_GPIO
GND
XTALI
IO
A4
GND
GP
IO
14
A_RA4
AP2
TESTN
3
SY0
AVD
D
_
VAD
1
RE
D+
VI2
3
VI1
7
GND
DV
33A
SB18A
ADC_IN1
A_DQM1
F_OE_1
S
B
33A
IO
A5
GP
IO7
AO
BC
L
K
GND
AO
MC
L
K
VFE_GND
GND
GND
AR
PB0
+
TESTN
1
VI11
HDMIVSYNC
A_BA1
PWR_ON_OFF
DV
25A
A_DQ17
DACVDDC
A_DQS2
AN1
LVDDC
A_DQ25
PWM2VREF
IO
SD
A
F_D5
T
UNE
R_S
W
IO
A3
F_A
12
LV
DS
_GND
AVIC
M
AVD
D
_
VAD
0
HDM
IB
CLK
VI12
VI8
A_
D
Q
S0
A_CKE
A_CLK
A_DQS3
IO
W
R
_
1
A_RA1
A_RA10
A_
D
Q
7
F_A
18
AO
SD
ATA4
AO
SD
ATA3
A_DQ16
A_RA6
VFE_
G
N
D
1
GND
C
VBS0
SO
Y0
RE
D-
VFE_
G
N
D
VG
AVSYN
C
_
1
GND
VI2
1
DV18A
HDMIDE
GND
F_A
11
F_A13
CLK1-
A_CS_1
DV18A
A_DQ15
XTALVDD
LVDDA
VPLLVDD2
SDV25A
ADC_IN3
G
R
EEN
-
F_D2
DV
18A
AD
IN
IRRCV
R
DV33A
PR
0
+
IC
E
ADC_IN0
A_
D
Q
1
0
GND
A_DQ20
SDV25A
IOCE_1
F_A14
GP
IO9
A_RA8
LVDS_GND
IOA0
SC
L
0
A_
D
Q
5
UP3_0
G
R
EEN
_
L
ED
TESTP2
GP
IO
17
A_
D
Q
3
GP
IO
15
A_
D
Q
1
SD
A0
PWR_ON_OFF
IDT_OE
RED_LED
HD_PON
TESTN3 5
HDMIVSYNC 10,12
HDMIHSYNC 10,12
IOSDA 10,13,23,26
F_A[8..21] 4
VPLLVDD2 5
BLUE+ 22
HDMIBCLK 12
GPIO10 24
A_CKE 4
AL 21
VGAVSYNC_1 22
TESTP3 5
CVBS1 8
GPIO15 24
HDMISD3 10
RXD1 12
VPLLVDD1 5
SDA1 12
HDMIMCLK 12
GPIO9 19
AR 21
VGAHSYNC_1 22
A_RA[0..11] 4
TESTN4 5
CLK1- 25
F_OE_1 4
HDMISD2 10
RED- 22
AOLRCK 20,23
SOY0 8
GPIO8 23
MPX1 8
TESTP4 5
LVDDB 5
HDMISD1 10
URST_1 26
PLLVDD2 5
GREEN- 22
A_BA[0..1] 4
PR0+ 8
GPIO7 19
Y0- 8
F_D[0..7] 4
27MHZ 10
LVDDC 5
AUDIO_GND 5,21,22
GPIO14 24
ADIN 20
AVDD_VAD0 5
GPIO4 26
PR0- 8
GPIO3 12
A_CLK_1 4
VI[0..23] 10,12
SDV25A 4
TXD 26
VGASOG 22
A_WE_1 4
PLLVDD1 5
Y0+ 8
GPIO2 25
DACFS 5
PWM2VREF 5
DV25A 4
AOMCLK 20,23
ADC_IN3 7
LVDS_GND 2,5,25
XTALVDD 5
ADCVDD 5
A_DQM[0..1] 4
PB0+ 8
AVICM 5
RXD 26
RED+ 22
A_CLK 4
VFE_GND 2,5,8,22
CLK1+ 25
ADACVDD 5
GPIO13 24
PB0- 8
SC0 8
IRRCVR 24
GPIO17 10
INT0_1 10
A_RAS_1 4
AVDD_VFE0 5
AOBCLK 20,23
IOWR_1 4
REFN 5
BLUE- 22
A_DQS[0..3] 4
AN[0..3] 25
AVDD_VFE1 5
AADCVDD 5
LVDDA 5
VREF 4
A_CAS_1 4
REFP 5
IOA[0..7] 4
HDMICEN 10
PWM1 1
A_DQ[0..31] 4
HDMIDE 10,12
AVDD_VAD1 5
IOSCL 10,13,23,26
IOCE_1 4
HDMISD0 12
GREEN+ 22
VFE_GND1 2,5,8,22
AOSDATA1 23
PWM0 1
GPIO16 24
AP[0..3] 25
HDMIODCK 10,12
CVBS0 8
PLLVDD3 5
TXD1 12
HDMILRCK 12
GPIO11 24
SCL1 12
AADCVSS 5,21,22
UP3_0 24
A_CS_1 4
SY0 8
ERO3_GPIO 20
VIDEO_OUT 21
CCIR_GPIO_D 10
SDA0 26
SCL0 26
AUD_CTRL 12
TUNER_SW 13
READY# 7
RED_LED 24
GREEN_LED 24
PWR_ON_OFF 1
IDT_OE 13
HD_PON 11
SB33B
SB18A DV33A
SB33B
SB33B DV18A
SB33B
SB33A
TP34
TP07
TP38
TP14
TP11
TP20
R118
10K
TP15
TP31
TP16
TP79
R114
1M5
TP36
TP08
R116
(NC)10K
TP09
R870 0
X100
27MHz
TP17
R119
10K
TP18
TP01
TP80
TP27
R869 0
TP13
TP03
C136
27P
TP33
TP19
TP02
R117
1K
MT8202
SOCKET
I106
MT8202
BGA388/SOCKET
C9
U4 M3 M4 M1 K1
B6
A6
C6
D6
C3
C2
C4
C10
D12
B16
A10
C8
D5
A14
R13
AF10
AC11
AD11
AC12
AE11
AF11
AF12
AE10
AC7
K2 D3 L1 L2 L3 L4 N1 N4 M11 P1 P2 P3 P4 N12 R1 R4 R2 T1 T4 U1 U2 U3 V1 V3 V2 V4 W3 W4 Y1 Y2
L12
F3 M12 F2
D2
H2 H3 H4 G1
K3
G3
C1
B5
B3
E4
G2 H1
A5
A4
D1
A3
A2
B2
G4
B4
AA1
D18
A18
D20
A21
AE13
C18
T26
C20
B20
A23
C11 AC16
AC15
AD16
AC14
AD15
AF16
T14
AE15
AD14
AE14
J1
A8
A9
B13
D16
C16
A17
C17
C12
A13
A15
D9
B9
D13
A22
A20
C19
D19
R14
AF14
AF13
AD13
T13
D7
K4
B8
B22
AD17
AC17
AF17
AC13
AE17
AE12
AC
1
AC
4
AD
5
AE1 AF1 AA2
AE5
AF4
AE4
AF3 R12 AE3 AF2
T25
AD
3
P1
2
AC8
AF7
AF6
R11
AF5
AB3 AB2 AB1
AE8
AD8
AA4
AF9
AF8
AD9
T11
N11
AD7
AC18
C21
B21
A19
D21
B19
B18
B14
B12
B17
A12
D10
D11
D14
D15
B15
AC
2
F1
L11
C14
B10
B11
D17
C15
F4
B1
J2
AD12
AC9
AE16
AF15
AD10
AE9
AC10
AE2 AD
1
AC
5
W1 Y3 R3 T2 D4
C7
E3
T12
AB4
A16
A11
AC6
AE7
AE6
M2
B7
E1 N3 AD
2
AC
3
P1
1
Y4 T3
AD6
W2
AD4
AD18
AE18
AF18
AF19
AD19
AC19
AF20
AE20
AD20
AD21
AF21
AE19
AE21
AF22
AC21
AC22
AE22
AD22
R15
AF23
T15
AE23
AD23
AF24
AE24
AD24
AF25
AF2
6
AE2
5
AE2
6
AC
2
0
AD
2
5
AC
2
3
AD
2
6
AC
2
5
AC
2
6
AB2
6
AB2
5
AC
2
4
AA2
5
AA2
6
AA2
3
AA2
4
AB2
4
T16 W23 Y2
6
Y2
5
Y2
4
Y2
3
R16 W26 W25 W24 V2
4
V2
3
U23 U24 V2
6
V2
5
N24 U25 U26 T24 R25 R26 R23 R24 P2
3
M24 P2
4
P2
5
P2
6
N25 N26 M25 M26 L24 L25 L26 K2
5
K2
6
J2
5
J2
6
L23 G26 G25 F26 F25 H23 G23 G24 D25 D26 J2
3
E2
6
E2
5
F24 F23 E2
4
B2
6
C26 D24 C25 B2
5
C24 B2
4
A2
4
A2
6
A2
5
D23 C23 D22
C22
C13
A7
B2
3
D8
AB2
3
P13
N16
N15
N14
N13
M16
P16
P15
P14
A1
C5
J3
J4
E2
3
H24 H25 H26 K2
3
M23 N23
AA3
M15 L16 L13 E2 M13 L14 L15 M14
J24
K24
T23
N2
A5P/EBO1
DV
DD18
RX
D
TXD AO
MC
L
K
WR#
VSYNCO
HSYNCO
DE/GPIO
VCLK/GPIO
A17
IOA0
AD7
A6P/EBO3
A7N/EBO6
VREF
A2P/EGO1
A4P/EGO7
DVDD33A
LVSSC
DVSS25
RA8
RA7
RA6
DQ16
RA5
RA4
DQ19
RA9
DVDD25_CLK
RD# IO
A3
IN
T
0
PR
ST#
UP
3_4
IR AO
BC
K
LI
N
D
VSS1
8
AO
SD
AT
A0
/G
PIO
AO
SD
AT
A1
/G
PIO
AO
SD
AT
A2
/G
PIO
AO
SD
AT
A3
/G
PIO
D
VSS3
3
G
PIO
0
/AO
SD
AT
A4
GP
IO3
G
PIO
1
/AO
SD
AT
A5
F
C
IC
L
K
/G
PIO
GP
IO4
GP
IO
5/
TX
D
GP
IO
6/
RX
D
DV
DD18
GP
IO7
GP
IO9
GP
IO8
GP
IO
10
GP
IO
13
GP
IO
14
GP
IO
15
GP
IO
16
DVSS18
HI
GHA
1
D
VSS1
8
IO
A2
0
A16
IO
A6
IO
A5
DV
DD33A
IO
A4
DVDD18A
IO
A1
8
IOA1
IOOE#
AD3
HIGHA6
HI
GHA
0
IO
A7
IOCS#
AD0
HIGHA7
AD2
AD4
AD5
IO
A1
9
AD1
SD
A
ADCVDD
B
ADIN4/GPIO
XTALI
DQ22
PWM2VREF
GN
ADIN3/GPIO
ADIN2/GPIO
PLLVSS3
CK2P/EBO5 DQ29
DVDD25OPT
DQ28
DVDD25OPT
DVDD25OPT
DQ26
DVSS25
DQ25
DQ24
DQM1
IO
AL
E
A0P/ERO5
A1P/ERO7
LVDDC
DACVDDB
DACVDDA
G
DACVSSB
A7P/EBO7
VPLLVDD2
TP4
A5N/EBO0
A1N/ERO6
LVDDA
XTALVDD
XTALO
ADIN1/GPIO
DACVSSA
DVSS18
DQS2
DQ23
DQ21
DVSS25
ERO3/GPIO
DVDD18A
A0N/ERO4
PLLVSS2
GPIO/PWM0
DVDD33I
DQ30
DQ20
DQ31
DQ18
DQ4 DQ7 DV
DD25
DQS
1
DQ8 SC
L
RWE#
DQ15
DQ14
DQ12 D
VSS1
8
DQ11 DQ10
GP
RV
RE
F
D
VSS1
8
DVDD18
RA10
RCS#
DVSS25
CAS#
DQ2 DQ1 DQ0
RA1
RA0
DV
DD33
RCLKB
RA2
RA3
DVSS25
D
VSS2
5
BA0
GPIO/PWM1
PLLVDD2
PLLVDD3
XTALVSS
ADCVSS
ADIN0/GPIO
SVM
LVSSB
A3N/EGO4
R
A3P/EGO5
A6N/EBO2
CK2N/EBO4
VPLLVSS
VPLLVDD1
TN4
DQ5 IO
A2
1
DVSS33
LVSSA
A2N/EGO0
CK1N/EGO2
DACVSSC
DACVDDC
HI
GHA
2
AD6
IO
W
R
#
DQ17
DVDD18
DQ27
DQS3
RA11
RCLK
CKE
DQ9 DQS
0
DV
DD25
GP
IO
11
GP
IO
17
GP
IO2
F
C
IC
MD
/G
PIO
IO
A2
ERO2/UP3_5
HIGHA5
DVSS18
DQ3
FS
CK1P/EGO3
DVDD25
BA1
RAS#
IC
E
ERO1/UP3_1
HI
GHA
3
A
O
LRCK
DQM
0
DQ6 D
VSS2
5
GP
IO
18
F
C
ID
AT
/G
PIO
DVDD25
GP
IO
12
DQ13
OUT_27MHZ/GPIO
DE_SOG/GPIO
CEN_DVI/GPIO
VSYNC_DVI
HSYNC_DVI
DE_DVI
VI0
VI1
VI2
VI5
VI3
VCLK_DVI
VI4
VI7
VI6
DVDD18
VI8
VI9
DVSS33I
VI10
DVSS18
VI11
VI12
VI13
VI14
VI15
VI16
VI1
7
VI1
8
VI1
9
DV
DD33
VI2
0
DV
DD18
VI2
1
VI2
2
VI2
3
HDM
IM
CLK
/GP
IO
HDM
IB
CLK
/GP
IO
HDM
IL
RCK
/G
P
IO
HDM
IS
D0/
GP
IO
HDM
IS
D1/
GP
IO
HDM
IS
D2/
GP
IO
HDM
IS
D3/
GP
IO
SC
L
1
D
VSS3
3
CCI
R_V
CLK
/GP
IO
CCI
R_V
0/
GP
IO
CCI
R_V
1/
GP
IO
CCI
R_V
2/
GP
IO
CCI
R_V
3/
GP
IO
D
VSS1
8
CCI
R_V
4/
GP
IO
CCI
R_V
5/
GP
IO
CCI
R_V
6/
GP
IO
CCI
R_V
7/
GP
IO
SD
A0
SC
L
0
FA
S
T
_B
LA
NK
H
SYN
C
VSYN
C
AVSS_
VFE1
BP BN
SO
G
RP RN
AVD
D
_
VFE1
TN
1
TP1
AVSS_
VAD
1
SO
Y0
Y0
P
Y0
N
PB0
P
PB0
N
PR
0
P
PR
0
N
SO
Y1
Y1
P
Y1
N
PB1
P
PB1
N
PR
1
P
PR
1
N
AVD
D
_
VAD
1
SC
1
SY1
SC
0
SY0
AVSS_
VFE0
AVSS_
VAD
0
RE
F
N
C
VBS1
C
VBS0
AVD
D
_
VFE0
C
VBS3
C
VBS2
RE
F
P
AVD
D
_
VAD
0
A
A
DCV
DD SIF
AF
AAD
C
VSS
TN
2
TP2
AD
AC
VD
D
AC
EN
T/AO
SD
AT2
AVIC
M
AR
/AO
SD
AT1
AL
/AO
SD
AT0
AD
AC
VSS
TP3 TN
3
PLLVDD1
LVDDB
ERO0/UP3_0
PL
L
VSS1
A4N/EGO6
SD
A1
DGND/BALL
DGND/BALL
DGND/BALL
DGND/BALL
DGND/BALL
DGND/BALL
DGND/BALL
DGND/BALL
DGND/BALL
NC BALL
NC BALL
NC BALL
NC BALL
AAD
C
VSS
VFE_
G
N
D
1
VFE_
G
N
D
1
VFE_
G
N
D
1
VFE_
G
N
D
1
VFE_
G
N
D
VFE_
G
N
D
NC BALL
DGND/
B
A
L
L
DGND/
B
A
L
L
DGND/
B
A
L
L
HI
GHA
4
DGND/
B
A
L
L
DGND/
B
A
L
L
DGND/
B
A
L
L
DGND/
B
A
L
L
NC BALL
NC BALL
NC BALL
NC BALL
TP10
TP29
TP22
TP04
C135
22P
TP30
TP25
TP12
TP21
TP05
TP26
TP24
TP81
TP32
TP23
TP06
TP37
TP35
R115
10K
ViewSonic Corporation
Confidential - Do Not Copy
N3752w-1M
55