Sony CDX-C880R Service Manual ▷ View online
33
32
MUTE
CONTROL
Q205, 206
ACC
CHECK
Q608
BEEP
DRIVE
Q502
MUTE
CONTROL
Q211
AMP REM
CONTROL
Q601, 602
CONTROL
Q601, 602
VOL
CONTROL
Q203
67
CKO
66
SO
64
VOLCE
68
SUBCE
61
SW1
62
SW0
118
LEDON
81
ACCIN
78
ILLIN
79
TELMUTE
58
TESTIN
15
BEEP
120
POWON
SUB
VOL/
SUB
R
L
FRONT
-1
-2
CN201
CN201
21 16 22
11
14
13
20
12
11
7
9
4
15
9 10
9 8 7
26
25
23
7
24
CLK
DATA
CE
B A
SWITCH (SUB)
IC201
CLK
DATA
CE
ELECTRONIC VOLUME (SUB)
IC204
ELECTRONIC VOLUME
IC202
12
D201
7
1
3
LINE DRIVER (SUB)
IC205
2
12
13
SW201
(LINE OUT/IN)
OUT IN
Q201
Q207
Q208
LINE DRIVER
IC207
REO1
FNTO1
Q214
Q215
GND
ISOLATION
IC209
GND ISOLATION
IC210
STBY
22
MUTE
3
5
1
9
2
10
5
14
13
15
7
16
6
AMP+B
BATT
ILL
CHECK
Q604
ACC
D607
D602
6
FM-ON
7
4
3
2
TU-ON
REG
IC603
3
1
BATT
BZ501
BEEP
SW502
(POWER SELECT)
MODE2
MODE1
STB
9
8
COM8V
ANT+B
6
AMP+B
ANT+B
7
VCC
10 AM8V
11 FM8V
COM8V
AM8V
FM8V
AMP+B
POWER SUPPLY
IC602
ACC
F901
BATT
Q622
BU5V
R-CH
R
L
REAR
-3
-4
R-CH
R
L
EQ OUT
-1
-2
R-CH
CN202
CN203
R
L
SUB OUT
-1
-2
R-CH
LINE
OUT/IN
POWER AMP
IC211
CN601
FL+
FL-
RL+
RL-
AMP REM
ILL
ATT
TEST
ACC
BATT
ANT REM
1
13
1
13
SYSTEM CONTROL
IC501 (1/2)
LPF
Q51
FM 8V
AM 8V
D12
L-OUT
R-OUT
S-METER
SD
ST-IND
AM-IFCOUT
FM-IFCOUT
VCO (FM/AM)
VT (FM/AM)
LO/DX
RECEIVE/SEEK
TUNER UNIT
TU10
18
16
AM-DET.OUT 12
19
53
60
5
13
20
22
22
11
21
21
6
5
4
13
39
41
40
42
CN201
BUS AUDIO
IN
R-CH
X10
7.2MHz
SI
ST-MONO
SD-IN
VSM
TUNMUTE
SO
PLL
CKO
CE
CE
AF-SEEK
TIR
Q17
Q13
S-METER
RV10
R-CH
R-CH
CD SECTION
CD L-CH
16
9
15
FM-DET.OUT
16
23
S-METER 15
MPX
20 LVIN
IF.IN
AM.OSC
AM.OSC
FM.OSC
PD
LO/DX
SEKOUT
XI
XO
D.OUT
NARROW
D.IN
CLK
CE
1
20
2
6
5
4
2
PLL
IC10
25
26
27
26
27
28
X101
4.332MHz
OSCO
OSCI
5
4
7
L IN
26
X102
4.19MHz
XT1
XT2
48
47
MUTE 65
8.5V REG
Q12
5V REG
Q11
TU 8.5V
B+ SWITCH
Q101
RDS 5V
FM-ANT
AM-ANT
FM+B
+B (FM/AM)
AM+B
1
2
8
9
10
WIDE/
NARROW 24
1
DISPLAY SECTION
S-OUT
4
(ANTENNA)
04
Signal Path
: FM
: MW
: CD
TIRPLAY
MUTE
DRIVE
Q19
2
1
TIR/AM/CSV SWITCH
IC104
7
6
3
5
AM 8V
6
5
Q52
VT
SWITCH
IC12
1
7
3
2
WIDE
3
Q15
Q16
Q102
Q103
IC11
Q10
MTP
DAVN
I2CSIO
I2CCKO
DAVN
I2CSIO
I2CCKO
MPTH
DAVN
DAVN
SDA
SCL
SCL
2
8
9
10
BUSY 5
CE 56
RD 55
WR 54
RESET 53
PDWN 35
CE 11
AOUT
18
RDS MODULATOR
IC101
TIR CONTROL
IC103
TIR SIGNAL REGISTER
IC102
52
75
70
75
70
71
ANT+B
FM 8V
TU 5V
1
4
95
98
101
96
99
100
97
82
85
D0
D3
ADPCM/
DAC
BUSY
CE
RD
WR
RES
PDOWN
CE
D0
D3
D.OUT 15
D.IN 11
RWCK 2
WE 16
CS 17
TAS 18
SAS 22
44
50
46
40
37
36
D.I/O
RWCK
WE
CS1
TAS
SAS
SAD 23
39 SADX
18
NARROW
CONTROL
Q14
L-CH
R-CH
-5
-6
40
4
1
30
TONE
31
VOL
4
12
3
11
R-CH
FR+
FR–
RR+
RR–
VCT
VREF (L)
VREF (R)
REF VOLTAGE
IC206
5
7
3
1
17
56
POWSEL
57
EQ-SEL
ON
OFF
SW201
(LINE OUT/IN)
IN OUT
15
116
114
115
109
A-MUTE
ML
MD
MC
ML
AATT
MD
MC
110
EMPH
EMPH
2
CD
SECTION
4-4. BLOCK DIAGRAM — MAIN SECTION —
– 35 –
– 36 –
CDX-C880R
7
8
1
2
3
4
5
6
4
3
2
1
2
1
9
8
12
6
3
CD
SECTION
DATA IN
11
CLK IN
13
RESET
DATA OUT
BUS ON
10
18
17
10
24
59
19
11
90
13
14
16
18
17
19
6
7
1
8
9
92
93
73
74
10
11
77
BU IN
DATA
BUSON
CLK
BATT
RST
BUS INTERFACE
IC505
BACK-UP
CHECK
Q504
IR
RECEIVER
IC901
CN501
(BUS CONTROL IN)
Q501
1
SYSRST
RST
BU IN
CKI
SO
UNI
SI
BUSON
SIRCS
DOOIND
SO
CKO
LCD
CE
XO
XI
X1A
X0A
49
DSTSEL0
20
DATA
21
SO
22
CKO
23
CE
NAR
9
RST
41
LCDANG
BATT
D509
BU IN
LINK OFF
BUS CLK
BUS SI
BUS ON
RESET
BUS SO
RESET
IC601
BU5V
SW801
RESET
D501
BATT
D507
LED
CONTROL
Q624, 625
BATT
LED802-804
J801
(REMOTE IN)
J901
(MIC)
CSV
DATA
CLK
LCD
CE
32
14
INH
INH
VLC5
VLC4
VLC3
VLC2
VLC1
VLC0
GREEN
COLOR
SELECT
Q900, 902
2
AMBER
COLOR
SELECT
Q901, 903
LCD900
X501
3.6864MHz
X502
32.768MHz
LCD ANGLE
CONTROL
Q621, 623
ILL
CONTROL
Q617, 619
ILL
CONTROL
Q626, 627
LED
CONTROL
Q611, 612
29
ILL-ON
118
117
LEDON
30
DIMMER
BATT
BATT
SYSTEM CONTROL
IC501 (2/2)
LCD DRIVE
IC900
04
Q503
X901
14.31818MHz
D819
D814
KEYIN0
KEYIN1
KEYIN1
AD ON
KEYACK
35
76
RC-IN1
72
RC-IN0
48
37
36
RE-IN1
RE-IN0
CSV CONTROLLER
IC901
XO 1
XI 1
19
20
EN900
ROTARY
ENCODER
Q508
A0
A19
29
31
33
35
38
40
42
44
31
33
35
38
40
42
44
1
8
16
25
45
48
45
48
D0
D7
D0–D7
IC907(1/2)
IC909
31
A16
42
RDC
27
FLASH CE
45
WRD
A17
A0
A15
CSV FLASH
IC902
10
CSV SRAM
IC903
CE
OE
28
26
11
RDD 44
A16
WE
IC907(2/2)
30
A17
29
A18
28
26
A19
6 A17
IC908
32 OE
12 RESET
57
64
1
8
11
18
D0
D7
A0
A15
21
23
25
25
29
1
5
11
20
31
31
D0
D7
D0–D7
A0-A15
A0-A19
46
47
47
LSW901-918,
S900,SW803
D821
KET ACTIVE
SW
Q801, 802
EL INVERTER DRIVE
IC550,Q553–556
12
DOORSW
Q557
FRONT
PANEL
PANEL
(NOSE SWITCH)
Q552
DC +B
DC +B
ELECTRONIC
LUMINESCENT LIGHT
EL900
LED DRIVE
Q610
BU 5V
TIR IND
31
LED801
TIR
80
NOSESW
SW802
(NOSE DET)
38 DO
36 DI
39 CLK
37 CE
REQ
21 RST
35
B+ SWITCH
Q901,902
CSV 3.3V
BU5V
5V REG
IC904
CSV 5V
COM8V
BUFFER
IC905(1/3)
BUFFER
IC905(2/3)
CSV AMP
IC906
8
10
5
7
14
12
ADC/
DAC
ADC
MIX
AIN 0
51
AIN 1
50
IGAIN0 33
IGAIN1 32
48
DAC
MAIN SECTION
S-OUT
4
FILTER
IC905(3/3)
7
2
4-5. BLOCK DIAGRAM — DISPLAY SECTION —
– 37 –
– 38 –
CDX-C880R
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