Read Sony CDX-C680 / CDX-C780 Service Manual online
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IC204 CXA1846N
20 19
18
17
16
15
14
13 12 11
1
2
3
4
5
6
7
8
9 10
1dB STEP
VOLUME
8dB STEP
VOLUME
1dB STEP
VOLUME
8dB STEP
VOLUME
VCT
BUFFER
LATCH
SHIFT
REGISTER
LATCH
CONTROL
ZC
DET
+
–
+
–
–
INP 1
INN 1
VCT 1
INAO 1
VRIN 1
OUT 1
N.C.
GND
VCT
VCC
INP 2
INN 2
VCT 2
INAO 2
VRIN 2
OUT 2
CE
DATA
CLK
INIT
1
2
3
4
5
6
7
14
13
12
11
10
9
8
TIMING
&
SYNCHRONIZATION
SIGNAL
PROTECTION
32 WORD X 8 BIT
DUAL PORT RAM
DUAL PORT RAM
CRC
CHECKER
CPU INTERFACE
VDD
VDD
DQSY
SRDT
SCLK
SW2
SW1
TEST
EXCK
SBSO
SCOR
WFCK
MCK
XMODE
GND
+
–
+
–
+
–
+
–
OVER VOLTAGE
PROTECT
REGULATOR
1
2 3 4
5
6
7
8
9
10
12
11
NC
MODE2
MODE1
STB
VDD
AMP
VCC
ANT
COM
AM
FM
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
27
26
25
24
23
22
21
20
19
18
17
16
15
28
SERIAL
INPUT I/F
8 x OVER
SAMPLING
DIGITAL
FILTER
&
FUNCTION
CONTROLLER
MULTI-LEVEL
DELTA-SIGMA MODULATOR
DAC
DAC
LOW-PASS FILTER
(R)
LOW-PASS FILTER
(L)
MODE
CONTROL
I/F
CRYSTAL
OSC
BPZ-CONT
SCK
LRCIN
DIN
BCKIN
CLKO
XTI
XTO
DGND
VDD
VCC2R
AGND2R
EXTR
N.C
VOUTR
AGND1
M/IIS
MC/DM1
MC/DM1
MD/DM0
MUTE
MODE
CS/IWO
OPEN
DRAIN
DRAIN
RST
ZERO
VCC2L
VCC1
AGND2L
EXTL
N.C
VOUTL
+
–
+
–
+
–
–
1
OPOUT
20
GND
25
OPIN–
24
OPIN+
2
NC
3
NC
4
BIAS
5
DRIN'
6
DRIN
23
NC
22
MUTE
21
NC
DRIVER
MUTE
7
NC
8
NC
9
NC
10
NC
11
NC
12
D
ROUT–
+
–
13
D
ROUT+
LEVEL SHIFT
IN
+
–
THERMAL
SHUT DOWN
19
GND
14
NC
18
NC
16
NC
15
NC
VCC
17
1
2
3
4
5
CD
NC
OUT
VDD
GND
RESET
IC401 PCM1716E
IC551 LC89170M-TLM
IC602 BA3918-V3
IC604 RN5VD33AA
IC601 BA6195FP-YT2
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