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HCD-BX77DBi
Ver. 1.2
3-2.
A
B
C
D
E
F
G
H
Note: IC101 cannot exchange with single.
When this part is damaged, ex-
change the complete IP board.
HCD-BX77DBi
SCHEMATIC DIAGRAM - IP Board -
1
2
IP BOARD
CN102
30P
(iPod)
CL109
R110
DGND
1
R108
DGND
2
CL150
R107
TPA+
3
CL103
USB D+
4
CL149
R109
TPA-
5
CL104
USB D-
6
CL148
TPB+
7
CL102
VBUS
8
CL147
TPB-
R112
R113
9
CL105
220k
330k
ACC ID
10
CL146
PWR+
11
CL145
PWR+
12
CL144
ACC PWR
13
CL143
C121
RESERVED
14
0.1
DGND
15
DGND
16
CL142
R156
RESERVED
17
10k
RXD
18
TXD
19
ACC DET
20
CL141
S-VIDEO-Y
21
CL140
S-VIDEO-C
22
CL139
VIDEO-OUT
23
REMOTE SENSE
24
CL138
LINE-IN-L
25
CL137
LINE-IN-R
26
CL110
LINE-OUT-L
27
CL111
LINE-OUT-R
28
CL106
A-GND
29
CL112
DGND
30
R136
100
CN101
10P
CL113
PGND
1
VBUS 5V
2
CL115
RXD
3
CL116
R103
47k
C
TXD
4
L-
5
CL118
MAIN
L+
6
BOARD
(3/3)
R-
7
CN325
CL120
R+
8
(Refer to
page 29
SHIELD
9
on original
DETECT
10
service
manual)
3
4
5
IC102
100k
TK11133CSCL-G
100k
4.9
5.1
1
CONT
VIN
5
100k
2
GND
1.3
3.4
3
NP
VOUT
4
100k
IC102
R106
R111
R105
75k
10k
75k
+3.3V REGULATOR
C103
0.1
C104
C118
C109
C102
0.1
0.1
470
0.1
Q107
6.3V
RT1N141C-TP-1
ACCESSORY DETECT
CL107
R114
100
R150
100
10k
CL108
R115
D102
RB521S-30-TE61
R146
10k
D104
RB521S-30-TE61
Q102-105
MUTING
R102
100
Q103
R101
100
2SD2114KT146W
0
0
-1.1
R142
1k
-1.1
R141
R137
R138
100
1k
100
Q105
2SD2114KT146W
0
0
-1.1
-1.1
R143
R144
1k
1k
R147
100k
R148
100k
C114
C115
10
10
D105
16V
16V
RB521S-30-TE61
R104
100
R139
100k
R140
100k
4
4
6
7
IC103
RESET SIGNAL GENERATOR
IC103
PST3641UL
R122
10k
R131
100
3.4
1
GND
OUT
4
CL160
5.1
4.7
2
3
VDD
CD
C105
C119
0.22
1000p
R117
33k
CL151
X101
20MHz
C101
C108
C120
0.1
10
0.1
R130
R118
100
R154
0
CL159
10k
CL123
CL122
13
12
11
10
9
8
7
6
5
4
3
2
CL154
3.4
LED
14
3.4
LED
15
3.4
LED
16
IC101
P23
CL135
17
I-ACC WAKE
18
iPod INTERFACE
R153
P21
19
1k
IC101
R5F21246SNFP
P20
20
P17
21
P16
22
3.3
RXD_iPod
23
3.3
TXD_iPod
24
P13
25
CL133
NC
26
27 28 29 30 31 32 33 34 35 36 37 38 39
R129
100
CL132
CL130
CL158
CL157
R128
3.4
100
CL155
-1.1
8
9
R132
R135
10k
10k
1
CL153
P37
52
CL124
KEY0
51
CL156
KEY1
50
CL125
DEST
49
MODEL
48
P61
47
1.6
DETECT
46
P60
45
3.4
VREF
44
P04
43
P05
42
P06
41
NC
40
Q106
RT1P141M-TP-1
MUTING CONTROL SWITCH
3.4
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