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5
DECODE BOARD SCHEMATIC DIAGRAM 1/6
[2]
YUV[3..6]
YUV[3..6]
L1541.8uH
YUV4
MUTE_DAC
[2]
MUTE_DAC
R298
C191
75,1%
47P
FS0
[2]
FS0
FS1
[2]
FS1
RGB_SWITCH
[2]
RGB_SWITCH
SCART_L
L1561.8uH
[5]
SCART_L
YUV5
4
SCART_R
[5]
SCART_R
A_MUTE
[5]
A_MUTE
R299
C193
75,1%
47P
AVCC
[1,2,5]
AVCC
+12V
[1,5,6]
+12V
DV33
L1571.8uH
[1,2,3,5,6]
DV33
YUV6
+5V
[1,2]
+5V
R304
C195
[5]
SCART_L_IN
SCART_L_IN
75,1%
47P
[5]
SCART_R_IN
SCART_R_IN
Low Impedance Mode
3
R312
510
+5V
R313
10k
R314
470
1
Q117
2N3906
R316
10K
DV33
MUTE_DAC
R317
1k
Q118
1
C201
2N3904
+12V
3300pF
R318
100
R322
+5V
2.2k
R324
0
R325
470
Q120
1
2N3906
D112
3
2
D113
1N4148
A_MUTE
5V1
+
Q121
C204
2N3906
+5V
220uF/16V
R326
470
MUTE_Circuit
R327
ASPECT
+12V
2
680
R328
R329
1k
75
R330
FS0
Q122
1
R331
2N3904
Q123
1
2.2k
2N3904
2.2k
FS1
Q126
2N3906
R332
RGB/CVBS#
3
2
DV33
33
R333
CB171
4.7K
0.1u
R334 2.2k
RGB_SWITCH
SCART CONTROL
1
5
4
RGB_SWITCH: 0--->RGB,
1--->CVBS/YUV
RGB/YUV Switch
G/Y
IN
Dir
D107
L
R,G,B
C192
DIODE SMD BAV99
H
Y,U,V
120P
5V_VIDEO
U113
B/U
RGB_SWITCH
1
IN
VCC
G_OUT
2
S1A
/EN
D108
Y_OUT
3
S2A
S1D
C194
G/Y
4
DA
S2D
DIODE SMD BAV99
B_OUT
5
S1B
DD
120P
U_OUT
6
S2B
S1C
5V_VIDEO
B/U
7
DB
S2C
8
GND
DC
NC PI5V330W
R/V
G/Y
R300
NC(0)
D109
R301
NC(0)
C196
DIODE SMD BAV99
R/V
R302
NC(0)
120P
R303
NC(0)
5V_VIDEO
B/U
R305
NC(0)
R306
NC(0)
CVBS
R307
NC(0)
R308
NC(0)
CVBS
R315
3.3K
CE127
L162
YUV3
0.22uH
22uF/16v
R320
R319
C202
C203
R321
75,1%
22pF
22pF
3.3K
91R,1%
mark:**
只有当
mark:** 要加上。
FS0
FS1
PIN158
PIN157
MT1389
0
0
4:3 / USB
0
1
1
0
16:9
1
1
STB / AUX IN / MP3 IN / SCART IN / FM IN
4
3
AVCC
5V_VIDEO
L155
FB
CB167
5V_VIDEO
+
CE125
22uF/10v
0.1uF
16
15
14
CVBS_SCART
CB168
13
CVBSO
2
CVBS
0.1u
12
C
R_OUT
11
V_OUT
E
10
B
9
R/V
1
3
3906
G_OUT
Y_OUT
R_OUT
V_OUT
B_OUT
U_OUT
CVBS_SCART
CVBSO
5V_VIDEO
CB170
0.1uF
Q119
220uF/16v
1
CE133
2N3904
CVBSO
R323
D111
75 1%
NC DIODE SMD BAV99
5V_VIDEO
R342
NC 0.1uF
和
CVBSO
SC
ART_CVBS必须同时有输出时，
3
2
1
JR1
CVBSO
L158
FB
1
ZD106
C197 15p
2
ESD0603/SMD
V_OUT
L159
FB
3
ZD107
C198 15p
ESD0603/SMD
Y_OUT
L160
FB
4
ESD0603/SMD
ZD108
C199 15p
5
ESD0603/SMD
ZD109
C200 15p
U_OUT
L161
FB
6
AV-RCA3.5
ZD111
ESD0603/SMD
ZD110
CN112
ESD0603/SMD
C205 15p
C206 47p
SCART_R
L163
FB
1
AR
L164
FB
2
SCART_R_IN
AIR
SCART_L
L165
FB
ZD113 ESD0603/SMD
3
AL
C207 47p
4
AGND
ZD112
C208 15p
5
BGND
ESD0603/SMD
6
L166
FB
SCART_L_IN
AIL
B_OUT
L167
FB
7
VB
L168
FB
ASPECT
8
SWITCH
C209 15p
C210 47p
9
GGND
10
CLKOUT
G_OUT
L169
FB
11
G
12
DATA
C211 15p
13
RGND
14
DATA_GND
R_OUT
L170
FB
15
R
L171
FB
RGB/CVBS#
16
BLNK
C212 15p
17
C213 47p
VGND
18
BLNK_GND
CVBS_SCART
L172
FB
19
CVBS
20
VIN
C214 15p
21
SHIELD
SCART CONNECTOR
RGB_SWITCH#: 1-3V RGB, 0-0.4V
CVBS
SCART_L
Amute
R340
A_MUTE
1
1k
Q124
NC 2N3904
SCART_R
R339
A_MUTE
1
1k
Q125
NC 2N3904
2
1
4
3
2
1
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