BBK DW9951S, Руководство по обслуживанию

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A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
Pin7(OUT) Pin4(SW2)
High(1-3V)
L
SC1_CVBS_IN
REAR/SC2/SC1_CVBS_SEL M1227 Pin2,Pin4
Low(0-0.4V)
H
Composite
RGB
L/H
7115/34(5146/C8)
H L
7115/35(5146/C7)
R_CVBS_IN
R_CVBS_IN
L
SC2_CVBS_IN
Pin2(SW1)
Fast Blanking Pin16
H
SC1_AUDIO_OUT SC1_RGB
SC1_CVBS_IN
SC2_AUDIO_IN
STATE
SC1_AUDIO_IN
SC1_AUDIO_IN
RW_CVBS_OUT
SC2_AUDIO_IN
E5_GPIOx1_RTC_INT
TUNER_CVBS_IN
STANDBY/DECODER OFF
SC2_CVBS_OUT SC1_CVBS_OUT
POWER OFF
SC2_CVBS_IN
SC2_CVBS_IN H
LOOP DECODER OFF_C
POWER ON/DECODER OFF L
SC2_RGB
RW_RGB_OUT
L
SC1_CVBS_IN H
RW_AUDIO_OUT RW_RGB_OUT TV_MONO
SCART LOOP AND DECODER Function
POWER ON/DECODER ON
SC2_AUDIO_OUT
NET Function select(AV CONTROL) Pin8
Wide-screen
AV mode High(9.5-12V)
Mid(5-8V)
TV mode Low(0-2V)
E5_GPIO1(for DMN8600)
L(0--0.4V) H(1--3V)
(12Pin for RDS_MPX)
SCART1 terminal have RGB output only when user
select RGB output(in work mode) or only when
SCART2 indeed input RGB (in LOOP status of
standby mode)
R22 P8 Decoder P8 P8 用于本机控制 时，外接 使 接地拉低 电平。
Q41
Decoder P8 P8 用于 控制 使，切断本机对 的影响。
<Doc> <RevCode>
<Title>
Custom
8 10 Tuesday, August 16, 2005
Title
Size Document Number Rev
Date: Sheet of
LOOP_DECODER_C
SC1_CVBS_IN
SC2_CVBS_IN
V2_IN
SC1_CVBS_OUT
SC1_CVBS_IN
SC2_CVBS_OUT
E5_GPIOx35
SC2_R_IN
SC2_L_OUT
SC1_R_OUT
SC2_L_IN
CL
DI
SC1_CVBS_RGB_SEL
G_Y
SC2_CVBS_OUT
VI_FSS
SC1_CVBS_RGB_SEL
SC2_CVBS_IN
R_Cr
DO
AV_CONTROL
CE
SC1_B
CE
SC1_CVBS_OUT
SC2_CVBS_IN
LOOP_DECODER_C
B_Cb
SC1_CVBS_IN
SC1_L_OUT
DI
CVBS
SC1_L_OUT
SC1_R_OUT
SC2_R_IN
SC2_R_OUT
DO
SC1_L_OUT
SC1_G
SC2_L_IN
SC2_R_OUT
SC1_R_OUT
CL
SC1_R
CVBS
SC2_L_OUT
SC2_R
VI_FSS
LOOP_C
SC1_CVBS_SEL
SC2_B
SC2_B
SC1_R
SC2_G
SC1_CVBS_SEL
LOOP_C
SC1_G
SC2_R
SC2_G
SC1_B
SC2_R SC2_G SC2_B
E5_GPIOx35
LOOP_DECODER_C
V2_IN 1
TVP5146_C8 1
TVP5146_C7 1
CVBS 2
V1_IN 1
R_SC2_SC1_CVBS_IN 1
SC1_L_IN 7
L_OUT 1,3,6
SC1_R_IN 7
SC2_L_IN 1,7
R_OUT 1,3,6
SC1_L_IN 7
SC2_R_IN 1,7
E5_GPIOx2 1
E5_GPIOx4 1
RADIO_L 1
SC1_R_IN 7
RADIO_R 1
TV_MONO 1,7
E5_GPIOx1_RTC_INT 1,2
B_Cb 6
G_Y 6
R_Cr 6
5V_STB
5V_STB
5V_STB
+5V
+5V
5V_STB
5V_STB
+5V
5V_STB
+5V
+6.2V
+12V
5V_STB
5V_STB
+9V
-6.2V
5V_STB
5V_STB
+5V
5V_STB
5V_STB
5V_STB
+5V +5V +5V
+12V
R179
7.5K
C98
*104
Q34
3904
R175
1K
R145
2.2K
Q37
3906
R181
1K
FB8
*B221
R174
75
R149
*75
+
C118
*47u/16
R156
*6.8K
+
C
127
*220u/16
R178
75
R169 *0
U10
*74HC4053
12
13
2
1
5
3
6
14
15
4
16
8
7
11
10
9
X0
X1
Y0
Y1
Z0
Z1
EN
X
Y
Z
VCC
GND VEE
A
B
C
C96
*223
R225 1k
D25
1N4148
R147
*0
+
C112 *10u/16
D16
*1N4148
R165
*0
FB5
*B221
SC2
*SCART IN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
D14
*MMBD4148SE SOT-23
1
3
2
U9
*MM1227/*MM1225
1 2 3 4
5 6 7 8
In1 SW1 In2 SW2
In3
VCC
Ou
t
Gn
d
Q21
*3904
Q19
*3904
R128
*4.7K
R180 2.2K
C130
*104
R164
*0
C103
*104
D24
*LL60P
+
C113
*10u/16
FB4
*B221
Q29
*3906
D26
1N4148
R155
*6.8K
+
C123 *220u/16
R122
*0
C129
*104
Q33
3904
R142
10K
Q40
3904
+
C101
*220u/16
R140
*47K
+ C110
*10u/16
R170
*4.7K
+ C109
*10u/16
R218 2.2K
D12
*9.1V 1W
R133
*B221
+
C132
*220u/16
+
C104
*47u/16
+ C108
*10u/16
R177
1K
C100
*104
C106
*104
R172
100K
+
C133
*220u/16
R176
75
Q22
3904
+
C121
*10u/16
R151
3.3K
R167
*0
+ C134
*220u/16
R219
3.3K
+
C125 *220u/16
R157
*470
Q41
*3904
R131
*4.7K
Q17
*3906
+
C
128
*220u/16
R129
*1K
+
C114
*10u/16
R224 4.7K
D19
*MMBD4148SE SOT-23
1
3
2
R166
*0
R135
*0
D27
1N4148
+ C107 *10u/16
R139
*75
R153
*6.8K
R126 *1K
D15
*MMBD4148SE SOT-23
1
3
2
R143
1K
C97
*104
+
C122
*10u/16
D13
*MMBD4148SE SOT-23
1
3
2
+ C111
*10u/16
Q27
*3904
R154
*470
R130
*4.7K
R183
3.3K
R138
*3.3K
+
C126 *220u/16
R134
*B221
U7
*FSAV330
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
S
1B1
1B2
1A
2B1
2B2
2A
GND
VCC
OE
4B1
4B2
4A
3B1
3B2
3A
+
C131
*220u/16
R182
7.5K
+
C117
*10u/16
R121
*0
C105
*104
+
C124 *220u/16
R
163
*4.7K
R118 *100 1/4W
R162
*4.7K
D18
*1N4148
R124
22
D28
1N4148
C120
*104
Q30
3904
D17
*MMBD4148SE SOT-23
1
3
2
D20
*1N4148
+
C102
*47u/16
Q18
*3906
FB3
*B221
Q32
3904
R146
1K
R221
4.7K
D23
*1N4148
R123
*0
SC1
*TO TV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
R136
*75
R132
0
R152
*6.8K
U11
*74HC4053
12
13
2
1
5
3
6
14
15
4
16
8
7
11
10
9
X0
X1
Y0
Y1
Z0
Z1
EN
X
Y
Z
VCC
GND
VEE
A
B
C
R144
10
Q26
*3904
R127
*4.7K
R168
*0
R171
47K
FB6
*B221
+ C99
*47u/16
Q20
*3904
FB7
*B221
+
C95
*100u/16
+
C116
*10u/16
Q23
*3904
R148
*10K
D22
*1N4148
R222 1K
R150
75
C119
*104
R125
100K
CN7
*11P1.25
1
2
3
4
5
6
7
8
9
10
11
R119 *100 1/4W
C136
101
R220
3.3K
Q25
3904
U8
*FSAV330
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
S
1B1
1B2
1A
2B1
2B2
2A
GND
VCC
OE
4B1
4B2
4A
3B1
3B2
3A
R120
*0
+
C115
*10u/16
Q31
3904
C135
*101
Q24
3904
CN6
*7P1.0/*12P1.0
1
2
3
4
5
6
7
8
9
10
11
12
Q39
3906
R141
*3.3K
R137
*10K
47