BBK DW9938S Service Manual 7DW9919-6
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Modify Notes:
2005.01.08
P1 U1 Supply voltage from +6.2V to +5V
4 4
P8 Del Net E5_C
P8 Add C166,C167,C168 when in mtk scart and out scart(rgb) ,exist interference.
P7. add gcode ic
P9. add r210,r211,r213,r214 amend the sound distortion when playing vcd,stero out,connect KONGJA tv
P8 add c169,c176 amend log picture distortion
2005.01.12
P8 add Q39,Q40,r218,r219,r220 etc. switch RGB/CVBS select votage level,when SCART in
2005.01.28
3 3
change c136,c145 to 220u
2 2
1 1
Title
<Title>
Size Document Number Rev
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Date: Sheet
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<Doc> <RevCode>
110Friday, September 16, 2005
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+12V
ADC_SEL1
N/A
R_AUDIO
F_AUDIO
TUNER
+5V
C17
103
TV_MONO 7,8
CN1
24P1.0
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
CN2
26P1.0
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
1
2
3
4
5
6
7
8
9
OPTICAL 6
SPDIF_OUT 6
SUBWOOFER 5
MUTE 3
CENTER 5
/RST_BTSC 7
REAR_R 4
REAR_L 4
A_R_OUT 3
SCART1
SCART2
ADC_SEL0
ADC_SEL1
A_L_OUT 3
TVP5146_C7 8
TVP5146_C8 8
E5_GPIOx2 8
E5_GPIOx4 8
E5_GPIO4
E5_GPIO5
SAA7115Pin35
SAA7115Pin34
CPUMUTE(for DMN8600)
E5_GPIO3(for DMN8600)
SAA7115Pin49
SAA7115Pin48
IIC_SDA 2,7,9
IIC_SCL 2,7,9
5V_STB
E5_GPIO1(for DMN8600)
1
2
3
4
5
6
7
8
9
E5_GPIOx1_RTC_INT 2,8
S_Y_OUT 2
S_C_OUT 2
V_OUT 9
R_V_OUT
G_Y_OUT
B_U_OUT
R_V_OUT 6
G_Y_OUT 6
B_U_OUT 6
R_C_IN
R_Y_IN
F_Y_IN
V3_IN
V4_IN
V1_IN
R_SC2_SC1_CVBS_IN 8,9
A_L_IN
A_R_IN
BBK AV ELECTRONICS CORP.,LTD.
C1
47u/16
R11
10K
+6.2V
R1 220
D1
6.2V 1/2W
A_L_IN
A_R_IN
-12V
VCR_R_L_IN 9
+5V
VCR_R_R_IN 9
R30 *15K
AUDIO IN
S1 AV2-8.4-6G
4 4
2
2
1
1
3
3
R2
15K
R3
15K
R32 *15K
R4
R5
10K
10K
C3
4.7u/50
C6
4.7u/50
+
EXT_AUDIO_IN_L
+
EXT_AUDIO_IN_R
S2 CS-09
R6
B221
R_CVBS_IN
D3
MMBD4148SE SOT-23
5V_STB
1
1
R10
B221
S
132
MMBD4148SE SOT-23
D4
R_Y_IN
SC2_L_IN 7,8
SC2_R_IN 7,8
R_CVBS_IN 8
R_Y_IN 9
R8
*0
BTSC_AINL 7
BTSC_AINR 7
BTSC_AINL
IN_L
BTSC_AINR
IN_R
R9
*0
12
14
15
11
10
C2
104
168
VDDVSS
X
Y
13
3
VEE
U1
CD4052 DIP
C8
-6.2V
104
X0
X1
X2
X3
1
Y0
5
Y1
2
Y2
4
Y3
6
INH
A
9
B
+
+
+
C4
4.7u/50
C5
4.7u/50
C7
47u/16
7
+5V
+
D2
6.2V 1/2W
R7 5.1k
+6.2V
Q1
3 3
3
3
4
4
2
2
R13
B221
132
MMBD4148SE SOT-23
D5
CVBS/S_VIDEO IN
5V_STB
5V_STB
R_C_IN
R_C_IN 9
132
C13
4.7u/50
+
F_AUDIO_IN_R
VCR_F_L_IN 9
VCR_F_R_IN 9
R17
15K
R19
10K
C14
R20
15K
4.7u/50
+
F_AUDIO_IN_L
2nd SIF
Video Out
2 2
R21
10K
Audio Out
VCC1
BT
VCC2
SCL
SDA
AS
AFC
NC
NC
AGC
VCC3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TUN1
R24
B221
D6
MMBD4148SE SOT-23
V3_IN
F_CVBS_IN 9
JS-6B2F/L121-D5
C10
103
IIC_SCL
IIC_SDA
R16 0
R18 *1K
C9
47u/16
C12
103
+
C11
+
100u/16
+5V
B A ADC_SEL1 ADC_SEL0
00
01
10
11
11
10
01
00
TV_IF 7
V1_IN
TV_CVBS_IN 8,9
R22
0
R23
10K
C18
102
R14
10K
Q2
3904
+
C15
4.7u/50
3904
R12
3.3K
R15
3.3K
ADC_SEL0
BBK LSI
SOURCE
R_AUDIO
TUNER&SCART
F_AUDIO
FM OR LOOP
TV_MONO
C16
+
220u/16
CN3
7P2.0
132
132
5V_STB
5V_STB
V4_IN
F_Y_IN
F_C_IN 9
F_Y_IN 9
VCR_L_OUT 9
VCR_R_OUT 9
R28
15K
R29
15K
R33
10K
C19
4.7u/50
R34
10K
+
+
C20
4.7u/50
IN_L
IN_R
1
2
3
4
5
6
7
1 1
R27
B221
R31
B221
MMBD4148SE SOT-23
D7
D8
MMBD4148SE SOT-23
Title
132
5V_STB
Size Document Number Rev
AV BOARD
1.0
7DW9917-0
Date: Sheet
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4 4
R35
B221
+5V
C21
104
R36
6.8K
C22
220u/16
MIX_CVBS_OUT 9
S_Y_OUT 1
+
R38
R39
3 3
180
6.8K
+5V
Q3
3904
R40
470
R37
B221
R42
B221
CVBS 8
E5_GPIOx1_RTC_INT1,8
1
3
4
2
1
3
4
2
S3
CS-09
S
5V_STB
R41
R43
4.7K
*0
CVBS/S-VIDEO
R44
5V_STB
R45
*0
6.8K
C23
220u/16
S_C_OUT 1
2 2
+
Q4
3904
R46
R47
180
6.8K
R48
470
D9
1N4148
D10
1N6263
X1
U2
PCF8563
1
X1
2
X2
3
INT
4 5
GND SDA
VCC
SQW
SCL
C24
104
+
C25
10u/16
8
7
6
32.768KHZ/20PF
BT1
3V
1 1
C26
20PF
C27
*20PF
IIC_SDA 1,7,9
IIC_SCL 1,7,9
BBK AV ELECTRONICS CORP.,LTD.
Title
<Title>
Size Document Number Rev
<Doc> 1.0
A4
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Date: Sheet
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310Friday, September 16, 2005
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