售后服务说明书
LCD TV
Model No.
L26M02
MSTV26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
解码板组件
解码板插座定义
J10
管脚顺序 信号名称 管脚顺序 信号名称
1 +5V 1 GND
2 BL 2 GND
3 DIM 3 +5V
4
5 GND 5 POWER ON/OFF
NC
4 +5V
6 +5VSTB
7 +5V
8 +5V
9 GND
10 GND
11 GND
12 +12V
13 +12V
J2
遥控连接插座(J6)
管脚顺序
信号名称
1 LED_R
2 LED_G
3
4 IR
5 GND
6 5V
按键连接插座(J7)
管脚顺序 信号名称
1 KEY1
2 KEY0
3 GND
喇叭连接插座(J11)
管脚顺序 信号名称
1 RSPK+
2 RSPK3 LSPK-
C155
0.1uF
C155
0.1uF
3
678
D D
5
+12V
+5V
R281 NCR281 NC
R282 0RR282 0R
4
1
2
Q30
AO4459
Q30
AO4459
C C
ON_PANEL
ON_PANEL
4.7K
4.7K
1
2 3
Q32
3904
Q32
3904
L: Panel active
R284
4.7K
R284
4.7K
R287
R287
R285
4.7K
R285
4.7K
1
2 3
Q31
3904
Q31
3904
0.1uF
0.1uF
C158
C158
R286
100K
R286
100K
PANEL-ON/OFF#
C156 10nFC156 10nF
10K
10K
R283
R283
+5V
4 5
4.7K
4.7K
NC/4.7K
NC/4.7K
4.7K
4.7K
BL-ON/OFF
10K
10K
5p,2.0,inverter
5p,2.0,inverter
J10
J10
B B
R288
R288
+5V
R289
R289
+3.3V
R290
R290
SAMSUNG panel 0~3.3V R34=10K
LG/CMO/AU panel 0~5V,R34 NC
R291
R291
+5V
Inverter Connector
A A
ON_PBACK
ADJ_PWM0
ON_PBACK
3904
3904
2 3
0.1uF
0.1uF
C163
0.1uF
C163
0.1uF
ADJ_PWM0
R295 4.7KR295 4.7K
1
2 3
1
3904
3904
Q34
Q34
R294 22KR294 22K
C164
C164
BL-ADJUST
5
R293 4.7KR293 4.7K Q33
Q33
BL-ON/OFF
BL-ADJUST
112233445
5
R296 NCR296 NC
4
3
DESIGN:George Guo
MODEL: MSTV2203-N1
TITLE: PANEL I/O
2
CHECKED:
SHEET: 8 OF 9 VER:1.0
APPRD:
1
Date: DEC. 12,2009
PANEL-ON/OFF#
VCC-Panel
32
34
36
38
40
32
34
36
38
40
31
33
35
37
39
31
33
35
37
39
LCD_OP
VCC-Panel
3
LVDS
4.97V 635mA (SVA 19')
VCC-Panel
C157
0.1uF
C157
0.1uF
C159NCC159
C161NCC161
NC
NC
冲击电流
1.20A
RXOC+
RXO3+
RXO1+
RXO2+
RXE1+ RXE1-
RXEC+ RXEC-
RXE2+ RXE2-
RXE0+ RXE0-
16
18
20
22
24
26
28
30
16
18
20
22
24
26
28
30
15
17
19
21
23
25
27
29
15
17
19
21
23
25
27
29
RXE3-RXE3+
C162NCC162
NC
10K
10K
R292
R292
NC
+5V
RXO0+
10
12
14
14
13
13
12
11
C160NCC160
10
9
11
RXO3-
8
8
7
7
9
RXOC-
6
6
5
5
RXO1-
RXO2-
4
4
3
3
2
2
1
1
RXO0-
J9
J9
2X20,2.0,TCON
2X20,2.0,TCON
RXE3-
RXE3+
RXE3+
RXEC+
RXEC+
RXE3-
RXEC-
RXE2+
RXE2+
RXEC-
RXE1+
RXE2-
RXE2-
RXE0+
RXE1-
RXE0+
RXE1-
RXE1+
NC/100R
NC/100R
RXE0-
RXE0-
R297
R297
RXO3-
RXO3+
RXO3-
RXO3+
RXOC-
RXOC+
RXOC+
RXO2+
RXO2+
RXOC-
RXO1+
RXO2-
RXO2-
RXO1-
RXO1-
RXO1+
RXO0-
RXO0+
RXO0-
RXO0+
2
1
5
4
3
2
DESIGN:George Guo
MODEL: MSTV2203-N1
CHECKED:
SHEET: 7 OF 9 VER:1.0
1
APPRD:
C154
220nF
C154
220nF
18uH/3A
18uH/3A
L13
L13
470uF/25V
470uF/25V
0.1uF
0.1uF
18uH/3A
18uH/3A
L14
L14
C153
220nF
C153
220nF
ROUT+
ROUT-
R2801KR280
1K
1
2 3
Q28
3904
Q28
3904
AR+
23
Q29
3904
Q29
3904
1
TITLE: AUDIO AMP
Date: DEC. 12,2009
2 3
3904
3904
0.1uF
0.1uF
EC15
EC15
C152
C152
NC/47K
NC/47K
A A
PWD_MT
1K
1
Q27
Q27
NC
0.1uF
0.1uF
3904
3904
Q24
Q24
0R_1206
0R_1206
2 3
R2781KR278
100R
100R
C151NCC151
NC
C150
C150
AUDIO_PWR
C149
C149
NC/4.7K
NC/4.7K
R279
R279
NC/5V1
NC/5V1
R275
R275
AMP-ENG-CTL
PWD_MT
D13
D13
1K
1
Q23
Q23
23
3904
3904
1
MUTE OFF
0R
PH_DETECT
R276NCR276
R2721KR272
AL+
R2990RR299
R277
R277
D11
D11
NC/100K
NC/100K
R234 NCR234 NC
FOR S2
FOR S2
2.2uF
2.2uF
10K
10K
22K
22K
C125
C125
R231
R231
C128
C128
10nF
10nF
R235
R235
AUOutL1_amp
2
-
-
1
AMP_LIN
C127 2.2uFC127 2.2uF
R233 1KR233 1K
AL+
470pF
470pF
V800AA
V800AA
C126
C126
470pF
470pF
V800AA
V800AA
D D
AUDIO Pre AMP
5
10uF
10uF
C122
C122
+
+
4VA
R226
10K
R226
10K
R227
47K
R227
47K
R225
10K
R225
10K
3
+
+
+8V
84
U15A
4558
U15A
4558
+
VCC-OP2
C123
10uF+C123
10uF
4
3
PH_Drive
+
EC8
220uF/16V+EC8
220uF/16V
C124
C124
R228
22R
R228
22R
R2301KR230
1K
E45
E45
PH_L PH_R
AMP_RINPH_LAMP_LIN PH_R
EC9
220uF/16V+EC9
220uF/16V
+
R229
22R
R229
22R
R2321KR232
1K
E44
E44
2
1
+
C136
C136
NC/220nF
NC/220nF
C137
C137
R249
R249
R250
R250
SVRR
LOUT#
ROUT#
1 2
SPEAKER
SPEAKER
AL+
NC/2.2uF
NC/2.2uF
IN11SGND2SVRR3OUT14PGND5OUT26VCC7M/SB8IN29GND/HS
20
EC11
NC/470uF/16V+EC11
NC/470uF/16V
+
+
ROUT-
ROUT+
1
C134
C134
U16
U16
NC/TPA1517
NC/TPA1517
1 2
LOUT-
LOUT+LOUT#
432
C C
R323 NC/0RR323 NC/0R
R322 3R/3WR322 3R/3W
NC/470uF/16V
NC/470uF/16V
EC10
EC10
J11
J11
不用
4558
时，短接
11.86V
+12V
AUDIO_PWR
R246 33KR246 33K
R245 NCR245 NC
AUOutR1_amp
不用
C130
2.2uF
C130
2.2uF
R242
10K
R242
10K
5
6
-
+
-
+
7
AMP_RIN
C131 2.2uFC131 2.2uF
R243 1KR243 1K
C132
C132
10nF
10nF
AR+
22K
22K
R244
R244
4558
时，短接
4VA
R241
47K
R241
47K
84
U15B 4558
U15B 4558
VCC-OP2
4.7K
4.7K
2 3
R239
R239
4.7K
4.7K
PWD_MT
1
Q18
3904
Q18
3904
R240
R240
2 3
3904
3904
R237 33KR237 33K
PWD_MT
1
Q19
Q19
B B
MUTE
R270 1KR270 1K
1
2 3
Q21
3904
Q21
3904
AR+ ROUT-
C148 0.47uFC148 0.47uF
9
VIPR8VINR7G05MUTE
HVSSR10AVSS2
11
HVSSR
12
OUTNR
13
HVDDR
14
OUTNR
15
HVDDR
16
HVDDR
17
OUTPR
18
HVDDR
19
OUTPR
20
HVSSR
HVSSR
FBNR
FBPR
21
23
22
ROUT+
D12
1N4148
D12
1N4148
AMP-MUTE2
MUTE ON
R273
10K
R273
10K
3904
3904
Q25
Q25
2 3
Q26
NC/3904
Q26
NC/3904
1
R271 10KR271 10K
PWD_MT
Q22
3904
Q22
3904
+12V
R274
R274
MUTE_msh9000
AR-
C147 0.47uFC147 0.47uF
6
AVSS1
AVDD
24
25
HIGH:OPERATING
MUTE
270K
270K
3 2
3906
3906
R317 0RR317 0R
NC/3K
NC/3K
R316
R316
MUTEDD
+5VSB
R2631KR263
1K
HIGH:MUTE
LOW:OPERATING
R269 10KR269 10K
AL-
C145 0.47uFC145 0.47uF
MUTE_msh9000
gain0
NC
EN
27
26
C146 1uFC146 1uF
AMP-EN
LOW:shut down
R262
10K
R262
10K
gain1
R264
10K
R264
10K
R265
NC/10K
R265
NC/10K
+3.3V_SB
R266
10K
R266
10K
R267
NC/10K
R267
NC/10K
R268
R268
EC14
220uF/25V
EC14
220uF/25V
12
470R
470R
Q20
Q20
1
AL+
C144 0.47uFC144 0.47uF
gain1
2
VIPL3VINL4HVSSL1G1
MSH9000 (QFN40 IC)
MSH9000 (QFN40 IC)
HVSSL
FBNL
FBPL
28
29
30
LOUT+
+12V
gain0LOUT-
R258
NC/10K
R258
NC/10K
R259
10K
R259
10K
1N4148
1N4148
D10
D10
R260
R260
R261
10K
R261
10K
thermal
HVSSL
OUTNL
HVDDL
OUTNL
HVDDL
HVDDL
OUTPL
HVDDL
OUTPL
HVSSL
C139
220nF
C139
220nF
U17
U17
41
C142
0.1uF
C142
0.1uF
40
39
38
0.1uF
0.1uF
37
470uF/25V
470uF/25V
36
35
34
33
32
31
C143
0.1uF
C143
0.1uF
G-CTL
R257 1KR257 1K
+5VSB
D9
1N4148D91N4148
Mute-VCC
R255NC R255NC
R2560R R2560R
+5VSB
+12V
Mstar Audio Amp + 8
L11
18uH/3A
L11
18uH/3A
C141
C141
EC13
EC13
+12V
18uH/3A
18uH/3A
欧姆
L12
L12
Speaker
C140
C140
220nF
220nF
LOUT-
LOUT+
+
+
NC/220uF/25V
NC/220uF/25V
EC12
EC12
C135
NC/0.1uF
C135
NC/0.1uF
+
+
12
NC/4.7uF/25V
NC/4.7uF/25V
EC21
EC21
MUTEDD
C138
NC/2.2uF
C138
NC/2.2uF
10
GND/HS11GND/HS12GND/HS13GND/HS14GND/HS15GND/HS16GND/HS17GND/HS18GND/HS19GND/HS
R253
NC/2R2
R253
NC/2R2
R254
NC/2R2
R254
NC/2R2
SVRR ROUT#
12
MUTE
R300
NC/47K
R300
NC/47K
AR+
R251
NC/2K
R251
NC/2K
R252
NC/2K
R252
NC/2K
NC/220nF
NC/220nF
NC/0R
NC/0R
NC/0R
NC/0R
5
4
3
2
DESIGN:George Guo
MODEL: MSTV2203-N1
CHECKED:
SHEET: 6 OF 9 VER:1.0
1
APPRD:
R223NCR223
NC
R224NCR224
NC
SPI_DI
SPI_DO1
RN11 22RX4
RN11 22RX4
7 5 3 1
7 5 3 1
8 6 4 2
8 6 4 2
CZSPI_CZ
SI
SO
SPI_CK SCK
R298 22RR298 22R
NC/22pF
NC/22pF
C121
C121
4
24C32
24C32
SDA
SCL
5
6
I2C_SDA
TITLE: TSUMV26KU
Date: DEC. 12,2009
WP
I2C_SCL
7
R222 100RR222 100R
WP_EE
A01A12A23GND
VCC
ADJ_PWM0
PWM1PWM1PWM0
0.1uF
0.1uF
U14
U14
8
4.7K
4.7K
4.7K
4.7K
4.7K
4.7K
C120
C120
4
SI
5
SI
0.1uF
0.1uF
R219
R219
R220
R220
R221
R221
A A
R2161KR216
1K
R2171KR217
1K
PWM2
R218 33KR218 33K
SCK
6
SCK
at A0.
C119
C119
+3.3V
+3.3V
NC/4.7K
NC/4.7K
SO
CZ
CE#1SO2WP#3VSS
HOLD#
VDD
7
8
0.1uF
0.1uF
I2C address
+5V +5V
Mode
Selection
R215
R215
FLASH:512KB
MX25L4005A
MX25L4005A
U13
U13
R319 51RR319 51R
R318 51RR318 51R
C118
C118
ON-PBACK
R214 0RR214 0R
R213 0RR213 0R
SIF_CTLSIF-CTL
ON_PBACK
ON_PBACK
SIF_CTL
4
SI
5
DVD_ON/OFF
LED_CTL
PWR_ON/OFF
PWR_ON/OFF
DVD_ON/OFF
CE#1SO2WP#3VSS
HOLD#
VDD
SCK
6
7
+3.3V
AMP-MUTE
PWM3 HD_AUD_SW1
R212 0RR212 0R
HD_AUD_SW1
AMP-MUTE
HD_AUD_SW0
8
R211 0RR211 0R
HD_AUD_SW0PWM1
ON_PANEL
FLTPFLTP
ON-PANEL
R210 0RR210 0R
ON_PANEL
VIF
INPUT
TAGC
TAGC
10K
10K
10K
10K
10K
10K
4.7K
4.7K
10K
10K
10K
10K
10K
10K
10K
10K
SIFM
SIFM
SIFP
VIFM
VIFP
SIFP
VIFM
VIFP
R201
R201
R203
R203
R204
R204
R205
R205
R206
R206
R207
R207
R208
R208
R209
R209
B B
AUDIO
OUTPUT
AUOutR1_amp
AUOutL1_amp
AUOutR2
AUOutL2
AUOutR2
AUOutL2
AUOutL1_amp
AUOutR1_amp
C176
10nF
C176
10nF
R73
22K
R73
22K
C173
10nF
C173
10nF
R69
22K
R69
22K
C175
10nF
C175
10nF
R61
22K
R61
22K
C174
10nF
C174
10nF
R65
22K
R65
22K
RN20
100RX4
RN20
100RX4
7 5 3 1
7 5 3 1
8 6 4 2
8 6 4 2
1
GND
22
GND
26
GND
29
GND
34
FB120R/200mA
FB120R/200mA
GND
L10
L10
49
GND
55
GND
58
GND
63
GND
79
GND
101
GND
117
GND
GPIO Control Pins
+3.3V
+3.3V_SB
AUDIO
INPUT
REAR_A-LIN
REAR_A-Rin
MUX_Lin
PC_Rin
MUX_Rin
MUX_Lin
REAR_A-Rin
PC_Rin
REAR_A-Lin
MUX_Rin
C114
10uF
C114
10uF
C115
0.1uF
C115
0.1uF
C116
4.7uF
C116
4.7uF
C117
1uF
C117
1uF
AUVRADP
AUVRADN
AUVREF
51
AUVRM46AUVRP47AUVREF48LINE_IN_2L39LINE_IN_2R40LINE_IN_3L41LINE_IN_3R
LINE_OUT_0L52LINE_OUT_0R53DAC_OUT_0L50DAC_OUT_0R
PWM062PWM1
PWM2
PWM3
ALE
65
61
60
59
PWM2
PWM3
PWM0
PWM1
WP_EE
R200 NC/10KR200 NC/10K
PWM freq :
from 6MHz ~ 12M/2^34(=0.0007)Hz
RXD0
TXD0
R199 100RR199 100R
R198 100RR198 100R
UART-RX
UART-TX
PC_Lin
PC_Lin
R197 0RR197 0R
C113 0.1uFC113 0.1uF
45
AUCOM
WRZ
RDZ
66
ON-PANEL
REAR_A-Lin
REAR_A-Rin
43
LINE_IN_4R44LINE_IN_4L
AD[3]
68
69
67
ON-PBACK
R193 100RR193 100R
R195 100RR195 100R
I2C_SDA
I2C_SCL
I2C_SCL
I2C_SDA
R196
4.7K
R196
4.7K
R194
4.7K
R194
4.7K
VIDEO
INPUT
CVBS_OUT
SIDE_AV
SCART_AV
DVD_AV
REAR_AV
DVD_AV
SIDE_AV
SCART_AV
CVBS_OUT
REAR_AV
C110
0.1uF
C110
0.1uF
R192
4.7K
R192
4.7K
C111
0.1uF
C111
0.1uF
C112
100pF
C112
100pF
TAGC
MUX_Rin
MUX_Lin
PC_Rin
PC_Lin
37
42
TAGC
AD[0]
AD[1]70AD[2]
SDO
SCK
SCZ
SDI
74
71
72
75
73
SPI_DI
SPI_CZ
SPI_DO1
SPI_CK
AMP-MUTE
SIF-CTL
DEBUG PORT
+5VSB
+5V
FB120R/1AL9FB120R/1A
L9
Please close
to chip.
WARNING !!!
C109 0.1uFC109 0.1uF
C81 10uFC81 10uF
VIFP
VIFM
SIFM
SIFP
C106 0.1uFC106 0.1uF
C107 0.1uFC107 0.1uF
C105 0.1uFC105 0.1uF
C108 0.1uFC108 0.1uF
CVBS_OUT
35
30
21
31
33
VR27
VIFP
CVBSOUT
VIFM
SIFM32SIFP
DDCA_DA
DDCA_CK
GPIOD[1]76GPIOD[0]
SAR2
IRIN
INT
104
103
77
105
106
107
SAR2
R187 100RR187 100R
R186 0RR186 0R
R190 100RR190 100R
R191 100RR191 100R
LED_CTL
DVD_ON/OFF
UART-RX
UART-TX
IR_in
SC_FS
do not use GPIO function in PAD_INT
if the system need HDMI_CEC function
C C
Y,Pb,Pr
INPUT
MUX2_PBIN
MUX2_YIN
MUX2_PRIN
MUX2_PBIN
MUX2_YIN
MUX2_PRIN
R184 68RR184 68R
R178 68RR178 68R
DVD_AV
SCART_AV
SIDE_AV
REAR_AV
C104 47nFC104 47nF
C101 47nFC101 47nF
C102 47nFC102 47nF
C99 47nFC99 47nF
C103 47nFC103 47nF
C100 47nFC100 47nF
MUX_VS
RIN+
SOG
GIN+
19
12
13
20
16
VSYNC014CVBS2P17CVBS1P18CVBS0P
GIN011SOGIN0
RIN0
VCOM0
CVBS3P
TSUMV26KU
TSUMV26KU
U12
U12
WAKEUP
LVB3M
LVB3P
SAR1
SAR0
CEC
115
80
114
108
109
81
HDMICEC
PWR_ON/OFF
7 5 3 1
7 5 3 1
R182 0RR182 0R
R185 0RR185 0R
8 6 4 2
8 6 4 2
RXE3+
KEY0-SAR0
KEY1-SAR1
RXE3-
RXE3+
LED_CTL
R183
R183
4.7K
4.7K
+5VSB
R180 2KR180 2K
Q17
3904
Q17
3904
LED_R
R181 4.7KR181 4.7K
Q16
3904
Q16
3904
R1792KR179
2K
LED_G
RIN+
RIN+
VGA_HS
BIN+Y+PR+
8
LVBCKM
LVBCKP
82
RXEC+
RXE3-
RXEC+
VGA
INPUT
SOG
GIN+
GIN+
SOG
MUX2_PRIN
R177 33RR177 33R
C98 47nFC98 47nF
LVB2M
84
83
RN10 22RX4
RN10 22RX4
7 5 3 1
7 5 3 1
8 6 4 2
8 6 4 2
RXE2+
RXEC-
RXEC-
RXE2+
+5VSB
D D
R158
100K
R158
100K
+3.3V_SB
321
R163 4.7KR163 4.7K
C90
4.7uF
C90
TXCLK-
TXCLK-
SCL_HD
111
DDCDB_CK
HWRESET
AVDD_MPLL
AVDD_DVI
AVDD_ADC
AVDD_ADC
AVDD_AU
AVDD_VIF
AVDD_VIF
AVDD_VIF
VDDP_2
4.7uF
22K
22K
C91
1nF
C91
1nF
25
XIN
24
XOUT
HWRESET
113
110
23
123
AVDDA VDDPVDDC
15
7
118
VDDC
78
VDDC
54
VDDC
116
VDDP
102
VDDP
90
VDDP
64
VDDP
57
VDDP
56
VDDP
38
AVDD_AU
36
28
27
R168
R168
100R
100R
VDDP_PM
AVDD_MPLL
AVDD_VIF
3 2
SYS_RST
R166
R166
HWRESET
27pF
27pF
1
Q15
3906
Q15
3906
C88
C88
14.318MHZX114.318MHZ
1M
X1
R1621MR162
C87
10uF
C87
10uF
D8
BAV99D8BAV99
27pF
27pF
C85
C85
CL=20pf of XTAL
R160 200RR160 200R
5
4
3
2
DVI/HDMI
INPUT
HOTPLUG
SDA_HD
SCL_HD
HDMICEC
B_TX0+
B_TX0-
G_TX1-
G_TX1+
R_TX2+
R_TX2-
HOTPLUG
RXA2P
LVA3M
LVA3P
91
RXO3+
RXE0-
RXO3+
RXO3-
RXE0-
R_TX2-
R_TX2+
SDA_HD
SCL_HD
HDMICEC
HOTPLUG
R_TX2-
G_TX1+
G_TX1-
R_TX2+
122
124
125
126
128
127
RXA0P
RXA1N
RXA1P
HPLUGA
RXA2N
LVACKM
LVACKP
LVA2M
LVA1M
LVA2P
93
95
97
94
92
96
RN8 22RX4
RN8 22RX4
RN7 22RX4
RN7 22RX4
7 5 3 1
7 5 3 1
8 6 4 2
8 6 4 2
RXOC+
RXO2-
RXOC-
RXO2+
RXO3-
RXOC+
RXOC-
RXO2-
RXO2+
RXO1+
PANEL
INTERFACE
G_TX1+
B_TX0+
7 5 3 1
7 5 3 1
8 6 4 2
8 6 4 2
RXO1+
TXCLK+
B_TX0-
B_TX0+
G_TX1-
TXCLK+
SDA_HD
B_TX0-
TXCLK-
TXCLK+
120
119
121
112
RXACKP
RXACKN
RXA0N
DDCDB_DA
LVA0M
LVA1P
LVA0P
99
98
100
RN6 22RX4
RN6 22RX4
RXO0-
RXO0+
RXO1-
RXO1-
RXO0+
RXO0-
MUX_VS
VGA_HS
BIN+
VGA_HS
MUX_VS
BIN+
MUX2_PBIN
MUX2_YIN
R176 68RR176 68R
R175 33RR175 33R
R174 0RR174 0R
R171 33RR171 33R
C96 47nFC96 47nF
C97 47nFC97 47nF
C95 1nFC95 1nF
C94 47nFC94 47nF
PB+
SOY
GIN1M5BIN12SOGIN13GIN14RIN16BIN09GIN0M10HSYNC0
LVB1M
LVB0M
LVB2P
LVB1P
LVB0P
86
88
85
87
89
RN9 22RX4
RN9 22RX4
7 5 3 1
7 5 3 1
8 6 4 2
8 6 4 2
RXE1-
RXE1+
RXE2-
RXE0+
RXE1-
RXE2-
RXE1+
RXE0+
KEY PAD
KEY1-SAR1
KEY0-SAR0
470pF
470pF
R172
5.1K
R172
5.1K
C92
V800AA
V800AA
V800AA
V800AA
C92
+3.3V_SB
R169
5.1K
R169
5.1K
C93
470pF
C93
470pF
R173 0RR173 0R
R170 0RR170 0R
E42
E42
E43
E43
J7
3p,2.0,KeypadJ73p,2.0,Keypad
123
LED_R
6p,2.0,FrontPanelJ66p,2.0,FrontPanel
J6
11223344556
6
KEY_STB
LED_G
R164
4.7K
R164
4.7K
R1670RR167
0R
KEY0-SAR0
R165 0RR165 0R
C86
10uF
C86
10uF
R159 100RR159 100R
C89
C89
22pF
22pF
+5VSB
IR_in
IR_in
1
A A
B B
C C
D D
5
4
3
DESIGN:George Guo
MODEL: MSTV2203-N1
2
CHECKED:
SHEET: 5 OF 9 VER:1.0
R157
R157
1.5K
1.5K
C84
0.1uF
C84
0.1uF
TITLE: TUNER
C83
0.1uF
C83
0.1uF
R156
2.49K/%1
R156
2.49K/%1
0R
R1550RR155
470uF/16V+EC16
470uF/16V
470uF/16V+EC6
470uF/16V
NC/0.1uFC3NC/0.1uF
+
EC16
+
EC6
C3
U10
AMS1084CD-ADJ
U10
AMS1084CD-ADJ
VIN
ADJ1TAB
VOUT
R153
470R
R153
470R
C82
10uF
C82
10uF
VIN
ADJ1TAB
U11
AMS1084CD-ADJ
U11
AMS1084CD-ADJ
VOUT
R154
510R
R154
510R
L15
L15
10UH
10UH
3
2
3
2
NC/FB56R/1A
NC/FB56R/1A
FB5
FB5
SIF_CTL
4.7K/NC
4.7K/NC
1
2
Q14
3904/NC
Q14
3904/NC
NC/0R
NC/0R
C80NCC80
NC
+12V
4
+8V
+5V_LDO
4
FB8
NC/FB56R/1A
FB8
NC/FB56R/1A
5.01V 119mA
5V-Tuner
R151
R151
3
R152
R152
BA892D7BA892
2
ING
3
GND
OUT1
4
NC
VIFM
VIFM
+5V
D7
1
SAW
SAW
OUT2
5
L8NCL8
4.7K/NC
4.7K/NC
R148
22K
R148
22K
C79
C79
10nF/15nF
10nF/15nF
U9 D7262H/D3953N
U9 D7262H/D3953N
IN
VIFP
VIFP
R147
R147
NC
C78NCC78
FOR SECAM
R146
22K
R146
22K
NC/4.7K
NC/4.7K
0R/NC
0R/NC
0.1uF
0.1uF
NC/47uF/16V
NC/47uF/16V
EC5
EC5
+5V_LDO
R144
R144
D6
NC/BA892D6NC/BA892
R145
R145
4351
SIFM
SIFM
C77
C77
D5 1N4148D5 1N4148
10nF/15nF
10nF/15nF
2
R143 12KR143 12K
TAGC
TAGC
NC/1.5K
NC/1.5K
C76
C76
0R
U8 D9352H/D9650N
U8 D9352H/D9650N
SAW
SAW
SIFP
SIFP
RF-AGC
22pF
22pF
22pF
22pF
R140
R140
NC/22R
NC/22R
R141
R141
R142
0R/39R
R142
0R/39R
D40RD4
C74
C74
C75
C75
NC/75R
NC/75R
10nF/15nF
10nF/15nF
0R/56R
0R/56R
I2C_SCL
TV_SCL
TV_SDA
5V-Tuner
R136 100RR136 100R
R138 100RR138 100R
I2C_SCL
I2C_SDA
I2C_SDA
RF-AGC
TV_SCL
TV_SDA
5V-Tuner
IF_TV
R139
R139
IF_TV
C73
C73
AGND
R135
R135
C72
0R/NC
C72
0R/NC
NC/2SC2216
NC/2SC2216
R134
0R/NC
R134
0R/NC
Q12
Q12
1
2
3
NC/1uHL7NC/1uH
2 3
Q13
NC/3904
Q13
NC/3904
1
NC
R137
NC/4.7K
R137
NC/4.7K
SIF_CTL
SIF_CTL HI B/G,DK,I,L
SIF_CTL LOW L'
SIF_CTL
1
2
3
4
5
6
7
8
9
10
11
IF_TV
1
2
3
4
5
6
7
8
9
10
11
NC/10uF
NC/10uF
NC/15nF
NC/15nF
R129
NC/4.7K
R129
NC/4.7K
NC/680R
NC/680R
L7
NC/4.7K
NC/4.7K
D3NCD3
NC/4.7K
NC/4.7K
AGC
NC
AS
SCL
SDA
NC
5VB
NC
33V
NC
IFOUT
AGC
NC
AS
SCL
SDA
NC
5VB
NC
NC
NC
IFOUT
C70
C70
C71
C71
R133
R133
R130
R130
R131
NC/4.7K
R131
NC/4.7K
R132
R132
R128
R128
NC/100R
NC/100R
1K
F21WT-3DAR-E
F21WT-3DAR-E
GND12GND14GND
13
AFT7W103G
AFT7W103G
GND12GND14GND
13
+8V
+5V_LDO
国内
/
欧规
TUNER1
F21WT-3DAR-E
TUNER1
F21WT-3DAR-E
GND
15
TUNER2
NC/AFT7W103G
TUNER2
NC/AFT7W103G
GND
15
5
4
3
2
1
APPRD:
Date: DEC. 12,2009
1
A A
B B
C C
D D
SCART1_VOUT
V800AA
V800AA
E41
E41
AV
同步有失真，短接
R122
R122
75R
75R
C67
C67
0.1uF
0.1uF
220uF/16V
220uF/16V
EC4
4.7K
4.7K
2 3
EC4
HD_AUD_SW0
R127
R127
1
Q11
3904
Q11
3904
SC/HD_SW
0
1
SCART RGB/FS
YPbPr/VS
EC4
+
+
Q9
3906Q93906
3 2
1
R123
220R
R123
220R
Q10
3904
Q10
3904
+5V_LDO
2 3
R124
75R
R124
75R
R120
220R
R120
220R
1
R121
22K
R121
22K
R125
10K
R125
10K
C68
10uF
C68
10uF
CVBS_OUT
CVBS_OUT
+3.3V
VGA_VS
R126 1KR126 1K
SC_FB
VGA_VS
HD_Pbin
SC_Pbin
HD_Prin
SC_Prin
SC_Yin
HD_Yin
SC/HD_SW
1
PI5V330U7PI5V330
S1A2S1B5S1C11S1D14S2A3S2B6S2C10S2D13IN
GND
VCC
DC9DD
DA4DB
EN
8
16
15
12
7
C69
0.1uF
C69
0.1uF
C170 2.2uFC170 2.2uF
C172 2.2uFC172 2.2uF
C171 2.2uFC171 2.2uF
MUX_VS
MUX1_YIN
MUX1_PBIN
MUX1_PRIN
MUX1_YIN
MUX1_PBIN
MUX1_PRIN
MUX_VS
YPbPr/SCART Input 2:1 Switch
+5V_LDO
U7
L6
FB120R/200mAL6FB120R/200mA
C66
2.2uF
C66
2.2uF
R11 NC/33RR11 NC/33R
R10 NC/33RR10 NC/33R
R18 NC/33RR18 NC/33R
R320 NC/33RR320 NC/33R
HD_Pbin
HD_Prin
HD_Yin
VGA_VS
HD_AUD_SW0
HD_AUD_SW1
1
R118
4.7K
R118
4.7K
2 3
Q7
3904Q73904
1
R119
4.7K
R119
4.7K
2 3
Q8
3904Q83904
AU_SW1 AU_SW0 INput
0 1
0
1 1
1 0
PIN9 PIN10
74HC4052U674HC4052
0 DVD
SIDE-AV
SCART
5
4
3
2
560R
R117 10KR117 10K
AU_SW1
9
+8V
0R
R116 10KR116 10K
AU_SW0
Switch
SC_FS_IN
SC_FB_IN SC_FB
V800AA
NC
E38NCE38
R1130RR113
NC
E39NCE39
22K
22K
R114
12K
R114
12K
SIDE-Rin
SCART-Rin
C64 2.2uFC64 2.2uF
C63 2.2uFC63 2.2uF
GND
VEE
INH
6
7
0.1uF
0.1uF
V800AA
E34
E34
R105
15K
R105
15K
SC_FS
R99
75R
R99
75R
R107
2.7K
R107
2.7K
2K
SC_FS
AV1-R
AV1-L
NC
E37NCE37
R101
22K
R101
22K
R111
R111
R106
12K
R106
12K
SCART-Lin
SCART-Rin
Scart1_Rout
V800AA
V800AA
E35
E35
R102
R102
10K
10K
C57
2.2uF
C57
2.2uF
Scart1_R
R100
100R
R100
100R
Q6
3904Q63904
2 3
R109
47R
R109
47R
R110
10K
R110
10K
DVD-Rin
C62 2.2uFC62 2.2uF
VCC
3
8
16
+8V
C65
C65
MUX_Rin
SIDE-Lin
SCART-Lin
C61 2.2uFC61 2.2uF
C60 2.2uFC60 2.2uF
C166 2.2uFC166 2.2uF
X012X114X215X311Y01Y15Y22Y34A10B
X13Y
MUX_Lin
DVD-Lin
C59 2.2uFC59 2.2uF
C165 2.2uFC165 2.2uF
1
47k
47k
AUOutR2
U6
R97
4.7k
R97
4.7k
R103
R103
R321
4.7k
R321
4.7k
C58
2.2uF
C58
2.2uF
100KX4
100KX4
RN3
RN3
7 5 3 1
8 6 4 2
7 5 3 1
8 6 4 2
7 5 3 1
8 6 4 2
7 5 3 1
8 6 4 2
7 5 3 1
8 6 4 2
7 5 3 1
8 6 4 2
RN4
100KX4
RN4
100KX4
Blanking I/O
NC
E32NCE32
R96
75R
R96
75R
+8V
RN5
100KX4
RN5
100KX4
SC_CVBS
SCART_AV
+8V
47R
47R
Scart1_Rout
AV1-R
17
R94
R94
Scart1_Lout
AV1-L
V800AA
V800AA
V800AA
V800AA
V800AA
V800AA
NC
SCART_B
SC_FS_IN
E28
E28
E29
E29
E30
E30
R8875R R8875R
R8975R R8975R
R9075R R9075R
Location
Near RCA.
R91
R91
47R
47R
R92
R92
10K
10K
R93
75R
R93
75R
SCART_G
SCART_R
C56 2.2uFC56 2.2uF
SC_Prin
AV-JACK-1
AV-JACK-1
REAR_CVBS
E31NCE31
R87 47RR87 47R
REAR_AV
SCART_R
2 3
SC_FB_IN
Q5
3904Q53904
1
AUOutL2
SCART1_VOUT
SCART_B
C54 2.2uFC54 2.2uF
SC_Pbin
V800AA
V800AA
E27
E27
R84
10K
R84
10K
47k
47k
R86
4.7k
R86
4.7k
C55
2.2uF
C55
2.2uF
V800AA
V800AA
V800AA
V800AA
V800AA
V800AA
R85
R85
Pr
Pr
V
V
SC_CVBS
CVBSIN1GND2CVBSOUT3GND4FC_FSW5GND6R7GND8G9GND10SC_FS11B12GND13LIN14LOUT15RIN16ROUT
SCART Input
J4
LinkJ4Link
SCART_G
100R
100R
C52 2.2uFC52 2.2uF
SC_Yin
Scart1_Lout
C53
2.2uF
C53
2.2uF
Scart1_L
R80
100R
R80
100R
+8V
R79
4.7k
R79
4.7k
55776
6
HD_Pr
REAR_CVBS
E24
E24
E25
E25
E26
E26
R8175R R8175R
R8275R R8275R
R8375R R8375R
C51 2.2uFC51 2.2uF
HD_PrinHD_Pr
7pin 2.0mmJ37pin 2.0mm
J3
DVD
1234567
5
DVD_AR
DVD_AL
DVD_CVBS
R67
75R
R67
75R
R66 47RR66 47R
R63 100RR63 100R
HD_Prin
SC_Prin
HD_Pbin
SC_Pbin
+3.3V_SB
HD_Yin
SC_Yin
R62 100RR62 100R
DVD_AV
R60
12K
R60
12K
R68
12K
R68
12K
DVD-Lin
DVD-Rin
4
+5V_LDO
R302
100K
R302
100K
R301
100K
R301
100K
R303
100K
R303
100K
R59
100K
R59
100K
R57
100K
R57
100K
R75
100K
R75
100K
Y
Y
L
L
11229933884
REAR_AUDIO_L
REAR_AUDIO_R
HD_Y REAR_AUDIO_L
C47 2.2uFC47 2.2uF
HD_Yin
3
CN4
CN4
2
R78
R78
R74
150R
R74
150R
R71NCR71
NC
DVD_ON/OFF
IR_in
DVD_ON/OFF
IR_in
R247
100K
R247
100K
R238
100K
R238
100K
R248
100K
R248
100K
R52
100K
R52
100K
R19
100K
R19
100K
R55
100K
R55
100K
Pb
Pb
R
R
4
HD_Pb HD_Pb
HD_Y
C49 2.2uFC49 2.2uF
HD_Pbin
DESIGN:George Guo
MODEL: MSTV2203-N1
TITLE: VIDEO IN&OUT
CHECKED:
SHEET: 4 OF 9 VER:1.0
1
APPRD:
Date: DEC. 12,2009
13pin 1.25mmJ813pin 1.25mm
NC
NC
J8
101112
13
123456789
SIDE_CVBS
NC
NC
E40NCE40
R104 22KR104 22K
R112 47RR112 47R
R115
75R
R115
75R
R108
12K
R108
12K
SIDE-Lin
SIDE_AV
PH_DETECT
E33NCE33
E36NCE36
R95 22KR95 22K
PH_DETECT
PH_R
PH_L
R98
12K
R98
12K
SIDE-Rin
NC
E23NCE23
E22NCE22
R64 22KR64 22K
R72 22KR72 22K
R77
12K
R77
12K
C50 2.2uFC50 2.2uF
REAR_A-RinREAR_AUDIO_R
REAR_A-Rin
R70
12K
R70
12K
C48 2.2uFC48 2.2uF
REAR_A-Lin
REAR_A-Lin
1
12K
12K
12K
12K
NC
NC
R39
R39
R40
R40
E13NCE13
E14NCE14
47K
47K
R38
R38
D D
PC-L
PC-R
C41 2.2uFC41 2.2uF
PC_AUDIO_IN
PC_AUDIO_IN
12345
PC-R
PC-L PC_Lin
47K
47K
C40 2.2uFC40 2.2uF
CN2
CN2
R37
R37
5
4
3
75R
75R
75R
75R
75R
75R
16
17
VGA
VGA
R45
R45
R46
R46
R47
R47
E15NCE15
E16NCE16
E17NCE17
C C
15
14
13
12
11
CN3
CN3
6
5104938271
VGA_5V
VGA-R
VGA-B
VGA-G
R44 0RR44 0R
R42 47RR42 47R
R43 47RR43 47R
R41 47RR41 47R
V800AA
V800AA
E20
E20
V800AA
V800AA
E21
E21
B B
VGA-SCL
VGA-SDA
HS_RGB
VS_RGB
A A
5
VGA_5V
+5V
1
BAV70LD2BAV70L
2
D2
NC
NC
4
R54
4.7K
R54
4.7K
R53
4.7K
R53
4.7K
VGA-SDA
VGA-SCL
R56 100RR56 100R
R58 100RR58 100R
TXD0
RXD0
TXD0
RXD0
3
3
VGA-DDC-5V
E18NCE18
E19
V800AA
E19
V800AA
R50
4.7K
R50
4.7K
R51
R51
4.7K
4.7K
R49 100RR49 100R
NC
NC
R48 100RR48 100R
DESIGN:George Guo
MODEL: MSTV2203-N1
TITLE: VGA IN
2
CHECKED:
SHEET: 3 OF 9 VER:1.0
APPRD:
1
Date: DEC. 12,2009
VGA_VS
VGA_HS
close to MST IC
C45 1nFC45 1nF
C43 47nFC43 47nF
C44 47nFC44 47nF
C42 47nFC42 47nF
BIN+
GIN+
RIN+
SOG
PC_Rin
PC_Rin
PC_Lin
2
1
A A
B B
C C
D D
5
4
3
DESIGN:George Guo
MODEL: MSTV2203-N1
TITLE: HDMI IN
R36
NC/10K
R36
NC/10K
NC
R33NC/0R R33NC/0R
NC/2N7002
NC/2N7002
R34NCR34
HDMICECCEC
HDMICEC
Q3
Q3
NC/10K
NC/10K
5
CEC
+5VSB
+3.3V_SB
R30
R30
HOTPLUG
HDMI
HDMI
DAT2+
DAT1+
DAT0+
DAT2-
DAT1-
DAT0-
clk+
clk-
12
3
6
9
10
1
4
7
RX_C-
RX_2-
RX_2+
RX_1-
RX_1+
RX_0-
RX_0+
RX_C+
NC
E5NCE5
NC
E6NCE6
NC
E7NCE7
NC
E8NCE8
NC
E9NCE9
NC
E10NCE10
NC
E11NCE11
NC
E12NCE12
R27 5R1R27 5R1
R23 5R1R23 5R1
R24 5R1R24 5R1
R26 5R1R26 5R1
R28 5R1R28 5R1
R22 5R1R22 5R1
R25 5R1R25 5R1
R29 5R1R29 5R1
TXCLK+
TXCLK-
R_TX2-
G_TX1-
R_TX2+
G_TX1+
B_TX0+
B_TX0-
V800AAE1V800AA
NC
V800AAE3V800AA
V800AAE4V800AA
Dat0 shield
clk shield
8
11
Dat1 shield
5
Dat2 shield
HPD
19
2
E1
HPD
E2NCE2
E3
E4
DDC SDA
DDC SCL
CEC
13
15
16
DDC_CLK_IN
DDC_DAT_IN
CEC
DDC_SCL
DDC_SDA
R20 100RR20 100R
R21 100RR21 100R
SCL_HD
SDA_HD
SDA_HD
SCL_HD
CEC/DDC GND
+5V
17
18
10K
10K
10K
10K
23
HDMI_5V
R16
R16
R17
R17
GND20GND21GND22GND
HD5V
CN1
CN1
HDMI_5V
HDMI
BAV70LD1BAV70L
D1
+5V
4
3
2
CHECKED:
APPRD:
1
SHEET: 2 OF 9 VER:1.0
Date: DEC. 12,2009
3904Q43904
Q4
1
R35 4.7KR35 4.7K
HOTPLUG
HOTPLUG
HPD
32
10K
10K
HDMI_5V
R311KR31
1K
HDMI_5V
R32
R32
TXCLK-
R_TX2-
TXCLK+
G_TX1-
R_TX2+
B_TX0-
G_TX1+
B_TX0+
24C02=>EDID code must
be upto 256byte space,
for HDMI interface.
2
1
A A
B B
C C
D D
5
4
3
2
DESIGN:George Guo
MODEL: MSTV2203-N1
CHECKED:
SHEET: 1 OF 9 VER:1.0
100PF
100PF
C38
C38
2
GND
R15
100K
R15
100K
C34
2.2uF
C34
2.2uF
C35
0.1uF
C35
0.1uF
C36
0.1uF
C36
0.1uF
C37
0.1uF
C37
0.1uF
TITLE: POWER
1
EN
OUT/FB
5
100R
100R
4
VIN
PAM2301
PAM2301
LX
3
R14
100K
R14
100K
VCC1.26V
VDDC
NC
10uF
10uF
12K
12K
20PF
20PF
0.1uF
0.1uF
220uF/16V+EC18
220uF/16V
+5VSB
FB4NCFB4
C33
C33
C29
0.1uF
C29
0.1uF
R12
R12
U3 PAM2301-ADJ
U3 PAM2301-ADJ
22uH_2AL522uH_2A
R13
R13
C30
C30
C32
C32
+
12
EC18
FB42R/4A
FB42R/4A
NC
NC
+5V
100pF
100pF
0.1uF
0.1uF
0.1uF
0.1uF
FB3 FB42R/4AFB3 FB42R/4A FB6
L5
FB6
10uF
10uF
C26
C26
C27
C27
C28
C28
1.28V
TV 336mA
VCC1.26V
TV 141mA
L4
FB120R/1AL4FB120R/1A
AVDD_VIF
C25
C25
H1NCH1
H2NCH2
0.1uF
0.1uF
POWER INPUT
J2
+5V
FB1 FB42R/4AFB1 FB42R/4A
+
12
EC20
220uF/16V+EC20
220uF/16V
C19
0.1uF
C19
0.1uF
3
VIN
R8NCR8
C22
C22
+
EC17
VOUT
2
12
FB42R/4A
FB42R/4A
4
YPbPr 1080P 442mA
FB7
FB7
+3.3V
ADJ1TAB
U2
AMS1117-3.3
U2
AMS1117-3.3
NC
R90RR9
0R
0.1uF
0.1uF
220uF/16V+EC17
220uF/16V
Standby Mode:
+5VSB 5.06V 18.9mA
3.30V
J2
12345678910111213
220uF/16V
220uF/16V
EC3
EC3
+
+
12
冲击电流
5.06V 20.6mA
+5VSB
121mA
2 3
3904Q23904
Q2
2 3
1
R7
4.7KR74.7K
PWR_ON/OFF
H:ON
L:OFF
3904Q13904
Q1
1
4.7KR54.7K
NC
POWER-ON/OFF
H:ON
L:OFF
R5
R6NCR6
820R
R40RR4
0R
0.1uFC20.1uF
0.1uFC40.1uF
220uF/16V
220uF/16V
2.2uFC52.2uF
C6
0.1uFC60.1uF
C7
100pFC7100pF
C2
C4
+
+
EC19
EC19
FB120R/200mA
FB120R/200mA
C5
+5VSB
12
2.2uFC82.2uF
0.1uFC90.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
+3.3V
FB42R/4AL2FB42R/4A
YPbPr 1080P 416mA
L2
C8
AVDDA
C9
C10
C10
C11
C11
VDDP
C12
C12
C13
C13
C14
C14
C15
C15
C16
C16
C17
C17
+3.3V
AVDD_AU
C24
C24
MAINPOWER
MAINPOWER
+12V
+
EC2
470uF/25V+EC2
470uF/25V
R21KR2
1K
R31KR3
1K
+
12
+5VSB
冲击电流
12
EC1
470uF/16V+EC1
470uF/16V
11.72V 486mA (Audio 100%)
CON4J1CON4
123
4
1.66A
510R
R1NCR1
NC
AMS1117-3.3
AMS1117-3.3
U1
U1
ADJ
ADJ
1
OUT
OUT
2
4
IN
IN
3
+3.3V_SB
L1
L1
AVDD_MPLL
8.8mA
+3.3V_SB
3.29V 11.3mA
VDDP_PM+3.3V_SB
C1
0.1uFC10.1uF
2.1mA
5.02V 911mA/1.04A (TV/1080P)
冲击电流
5
1.47A
+5V
DVD POWER
J1
+5V
VDDP_PM & AVDD_MPLL must be alive
For PM Mode==>
4
3
2
1
APPRD:
1
Date: DEC. 12,2009
A A
B B
C C
D D
HD_AUD_SW1
DVB_S/MUX1 Input 2:1 Switch
R150
R150
1
Q35
3904
Q35
3904
DVB_S/MUX1_SW
0
1
DVB_S
MUX1
+3.3V
R149 1KR149 1K
MUX1_YIN
MUX1_PBIN
MUX1_PRIN
DVB_S/MUX1_SW
1
GND
VCC
EN
8
15
16
C129
0.1uF
C129
0.1uF
DVB_Pbin
DVB_Prin
S1A2S1B5S1C11S1D14S2A3S2B6S2C10S2D13IN
DC9DD
DA4DB
7
12
MUX2_PBIN
MUX2_PRIN
MUX2_PRIN
MUX2_YIN
MUX2_PBIN
DVB_Yin MUX2_YIN
U18
PI5V330
U18
PI5V330
2.2uF
2.2uF
C133
C133
+5V_LDO
L16
FB120R/200mA
L16
FB120R/200mA
5
4.7K
4.7K
2 3
4
3
NC
NC
NC
5p,2.0,inverter
5p,2.0,inverter
R18975R R18975R
R16175R R16175R
R18875R R18875R
112233445
E48NCE48
E47NCE47
E46NCE46
DVB_Pb
DVB_Pr
C168 2.2uFC168 2.2uF
C169 2.2uFC169 2.2uF
DVB_Prin
DVB_Pbin
J13
J13
5
DVB_Y
C167 2.2uFC167 2.2uF
DVB_Yin
5
4
3
DESIGN:George Guo
MODEL: MSTV2203-N1
TITLE: DVB_S Interface
2
SHEET: 9 OF 9 VER:1.0
CHECKED:
APPRD:
1
Date: DEC. 12,2009
1 1
DVB_S DVD
1
0
HD_AUD_SW1 HD_AUD_SW0 VIDEO AUDIO
0 0
0
1
SC_RGB/FS SCART
HD_YPBPR/VS SIDE_AV
MUX1_PBIN
MUX1_PRIN
MUX1_YIN
R236 NC/33RR236 NC/33R
R76 NC/33RR76 NC/33R
R202 NC/33RR202 NC/33R
MUX2_PBIN
MUX2_PRIN
MUX2_YIN
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
R305
R305
R304
R304
R306
R306
R311
R311
R310
R310
R312
R312
DVB_Yin
DVB_Pbin
DVB_Prin
MUX1_YIN
MUX1_PBIN
MUX1_PRIN
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
R308
R308
R307
R307
R309
R309
R314
R314
R313
R313
R315
R315
+5V_LDO
2
1
简单的故障检测方法
问题及现象 检测方法 分析方法 解决办法
开机后电源指示灯不亮,不开
机，整机不工作
1
开机后电源指示灯亮,但是遥
控不开机
2
开机后电源指示灯正常,但液
晶屏无图像显示
3
开机后使用搜台功能搜不到
台
4
开机后使用搜台功能,可以搜
到台但有漏台 断电/开机，再重新搜台
5
反复开机一两次电源开关,看是否有
恢复功能
反复开机一两次电源开关,看是否有
恢复功能
反复开机一两次电源开关,看是否有
恢复功能
查看电视信号是否和本机连接好,如
连接好,则需要查看信号线上是否有
发送信号,如果都OK,则查高频头电路
及给高频头的电源
可能主交流电源没有到达主电源板或主
板,用万用表测试看主电源的开关有没
有坏,电源板到主解码板的线材有没有
松动.保险丝有没有烧毁,电源有没短
路. 更换主电源开关或者查出短路原因.
查看系统+5V,+3.3V电源是否正常，有
无短路，如正常，用示波器查看信号是
否已经到达主芯片,如正常,则需要重新
烧录程序.
液晶屏到主解码板的线材有没有松动，
没有松动 更换连接线或更换屏
需要查看给高频头供电的5V,3.3V,1.8V
是否正常
查看本机周边是否有其他频率的干扰
源，如正常，需要查看5V,3.3V,1.8V是
否正常
查出短路原因，主芯片I/O口坏的,则
需要换主芯片;程序运行不正常,重新
更新程序.
如是电压不正常，查出电压不稳原
因，如果是TUNER坏,更换TUNER.
如有干扰源，把干扰源挪走，如是电
压不正常，查出电压不稳原因
6 开机后有图像无声音
遥控声音,看是否开的太小,或者声音
信号有没有插上,如果上述都正常,则
需要检查静音电路及功放电源和功放
IC芯片
首先查12V供电是否正常,主芯片到功放
芯片有没有声音信号输出，静音电路是
否正常，有侧AV输出的检查侧AV连线是
否接好，最后检查功放芯片有没有坏.
如果12V没有,则需要检查主电源及保
险丝;主芯片无声音信号输出或功放
芯片坏，更换主芯片或功放芯片.
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