BBK BBK917S, Service Manual

Page: 54 / 62

+8V
R264 150R
R266 1K
VD205 1N4148
+8V
R267 1K
AGND
VD206 1N4148
MUTE-1
TC235
220uF/16V
AGND
Q212 2SC1815-Y
Q218 1015
Q219 1015
SR#
SL#
TC225
10uF/16V
TC226
10uF/16V
TC227
10uF/16V
TC228
10uF/16V
TC229
10uF/16V
TC230
10uF/16V
R2150 4.7K
R2151 4.7K C2127 102
C2126
101
R2149 24K
R2141
24K
C2120
101
C2121 102 R2143 4.7K
R2142 4.7K R2138 4.7K
R2139 4.7K C2118 102
C2117
101
R2137
24K
R2146 4.7K
R2147 4.7K C2124 102
C2123
101
R2145
24K
R2134 4.7K
R2135 4.7K C2115 102
C2114
101
R2133
24K
R2129
24K
C2111
101
C2112 102 R2131 4.7K
R2130 4.7K
+8V +8V
+8V
+8V
+8V
+8V
3 2
1
4 8
U219A 4580
5 6
7
4 8
U219B 4580
3 2
1
4 8
U221A 4580
5 6
7
4 8
U220B 4580
3 2
1
4 8
U220A 4580
5 6
7
4 8
U221B 4580
AGND
AGND AGND AGND AGND
AGND
AGND
TC224 10uF/16V
TC223 10uF/16V TC222 10uF/16V TC221 10uF/16V
TC240 10uF/16V TC241 10uF/16V
CH-SL
AGND
R2123 1K R2121 1K R2120 1K R2117 1K R2124 1K R2122 1K R2119 1K R2118 1K
R2111 100K R2112 100K R2113 100K
R2114
100K
MUTE-1
Q208
2SC1815-YS
Q207
2SC1815-YS
Q205
2SC1815-YS
Q206
2SC1815-YS
R2127 1K
R2125 1K
R2128 1K
R2126 1K
R2115
100K
R2116
100K
Q210
2SC1815-YS
Q209
2SC1815-YS
SDATA2 SDATA1 SDATA0 SLRCK SACLK SBCLK SCL SDA RST#
LL RS RR LS LFE# C#
R2132 24K
C2116 102
AGND
R2156 24K
R2136
6.8K
R2148
6.8K
R2152
6.8K
R2153
6.8K
R2154
6.8K
R2155
6.8K
C2122 122 C2129 122 C2130 122 C2133 122
C2135 122 C2136 122
VLS
1
SDIN1
2
SDIN2
3
SDIN3
4
SCLK
5
LRCK
6
MCLK
7
VD
8
GND
9
RST
10
SCL
11
SDA
12
CS
13
VLC
14
MUTEC1
28
AOUTA1
27
AOUTB1
26
MUTEC2
25
AOUTA2
24
AOUTB2
23
VA
22
GND
21
AOUTA3
20
AOUTB3
19
MUTEC3
18
VQ
17
FILT+
16
M2
15
U207 CS4360
C292 104
C293 104
DV33
MUTE1
C291 104
TC236 10uF/16V
A5V
C289 104
TC232 10uF/16V
C290 104
TC233 10uF/16V
AGND
R282 0R
TC231 10uF/16V
MUTE2 MUTE3
RS LS
LFE# C#
MUTE1
Q211 1015
R2106 1K
R2105
1K
VD207 1N4148 VD208 1N4148 VD209 1N4148
MUTE2 MUTE3
TC238 2.2uF/16V(DNS)
A5V
R225 0R(DNS)
R226 0R
A5V
R291
33R
ACLK
SACLK
R292
33R
R293
33R
R294
33R
R295
33R
R296
33R
ABCK
SBCLK
ALRCK
SLRCK
ASDAT0
SDATA0 SDATA1 SDATA2
ASDAT1 ASDAT2
AGND
C2105 102 C2103 102 C2101 102 C299 102 C2109 102 C2107 102
2
3 1
5
6 4
8
9 7
JK201 A/V-O3
L232 FB
L233 FB
L234
FB
L235
FB L236 FB L237 FB
AGND
VD204 1N4148
OKA Q221 S8050
R285 4.7K
A5V
AGND
DET
TC205
10uF/16V
R286 10K
R287 10K R288 100K
VD203 1N4148 Q222 8550
R289 3.3K
TC209 47uF/16V
R290 1K
MDET
AGND
A5V
AGND
C2102 105
R278
3.3K
R279
3.9K
AGND
+8V
AGND
ROUT LOUT
C278 104
C279 104
C280 104
+8V
AGND
IN
1
GND
2
OUT
3
U212 78L08
+8V
AGND
C2104 104
R265
0R
(DNS)
AOR
AOL
TC234
47uF/16V
AGND
+10V
C244 104
IN
1
GND
2
OUT
3
U210 78L05
+8V
R243 0R
R244 0R
R268
33R
R269
33R