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HCD-BX70DBi
6-13. SCHEMATIC DIAGRAM - MAIN Section (2/3) -
CN306
13P
SIRCS
4
EVER 3.3V
STBY LED
89
KEY1
83
KEY1 RETURN
DGND
FL RESET
90
FL CS
91
+9V
(Page 35)
FL DATA
92
FL CLOCK
93
FL GND
4V
KEY1 RETURN
KEY2
82
KEY3
81
DGND
CN322
4P
(Page 35)
CN311
5P
M001
OPEN
C366
(LOADING)
CLOSE
0.1
DGND
S001
DISC TRAY
CLOSE SW
87
OPEN/CLOSE
OPEN SW
R472
1k
88
DETECT
R477
1k
HCD-BX70DBi
• See page 24 for waveforms. • See page 38 for IC Block Diagrams. • See page 40 for IC Pin Function Description.
(2/3)
C498
R487
0.1
10k
R786
R488
4.7k
10k
R492
10k
R493
10k
R494
10k
R781
100
81
R782
100
82
R783
100
83
R784
100
84
85
R785
100
87
88
R789
1k
89
90
R791
100
91
R792
100
92
93
R793
100
94
JR498
C499
0
0.1
100
R700
100
D318
1N4002-B5
D321
1N4002-B5
R408
2.2k
R301
5.6k
IC311
BA6956AN
R462
1k
VC
O+
GND
O-
LOADING
C338
0.1
MOTOR DRIVE
VCC
C364
10 50V
VM
R467
4.7k
85
I-
GND
84
R468
4.7k
I+
R473
10K
R780
R778
R773
100
100
100
D774
MC2836
KEY3
KEY2
KEY1
CDM LOAD OUT
CDM LOAD IN
SPEC IN
CDM SW(CLOSE)
SYSTEM CONTROLLER
CDM SW(OPEN)
STANDBY LED
FL RESET
R5F3640DDFAR
FL CS
FL SD
FL SCLK
X5V FLAG
NC
AVSS
NC
VREF
AVCC
CD
BUS3
R412
10k
R701
100
32.768KHz
C310
22p
0.22F
C311
22p
C333
0.1
CN310
11P
TUNER (FM/AM)
SUPPLIED WITH THE
ASSEMBLED BLOCK
FM 75Ω
COAXIAL
ANTENNA
30
30
(Page 29)
C362
0.1
R485
100k
R766
220k
R760
100
C766
0.01
NC
NC
DAB RXD
DAB TXD
R746
10k
PULL UP
BT_RESET
BT_AV_ROLE
BT AUDIO OUT MUTE
NC
PULL DOWN
IC301
INH
SEL A
USB RTS
NC
USB RXD
USB TXD
R734
100
BT_RTS
BT CTS
BT DIN
BT DOUT
R430
4.7k
R429
4.7k
R424
4.7k
R422
4.7k
RESET SIGNAL
GENERATOR
R728
X302
C342
100
5MHz
0.1
Q309
2SC3052F
X301
RESET SWITCH
R464
R465
C344
10k
47k
5.5V
R466
47k
R600
R611
4.7k
22k
R511
4.7k
R500
22k
L OUT
AM
GND
RXD
31
BUSY
34
VDD
SCLK
33
(NC)
32
TXD
PGM
9
R748
RST
12
100
48
GND
47
CN301
R747
9P
100
43
B1
R741
10k
40
39
R733
100
R732
100
R731
100
R433
R432
4.7K
4.7K
(BX20i)
B2
B3
Q301
2SC3052F
AC DETECT
B4
C339
0.1
(Page
31)
B5
IC310
PST3628NR
C301
D323
C341
C340
4.7
1N4002-B5
0.1
0.1
50V
B6
B8
B9
B10
TUNER_R
TUNER_L
5
B11
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