Sony CDX-C880R, Service Manual

Page: 34 / 62

33 32
MUTE
CONTROL
Q205, 206
ACC
CHECK
Q608
BEEP
DRIVE
Q502
MUTE
CONTROL
Q211
AMP REM
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
11
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
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
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
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 MPTH
DAVN
SDA
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
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