Read Sony MDX-C670 / MDX-C670RDS (serv.man2) Service Manual online
2-2. MAIN/DISPLAY Section
2
1
18
16
42
45
40
39
46
43
41
14
23
11
44
22
16
21
48
49
50
46
42
47
45
22
25
24
23
66
27
64
14
6
9
10
12
13
77
76
2
43
5
26
67
75
58
6
4
3
2
1
8
9
10
11
12
13
7
2
59
1
73
72
70
69
21
20
19
18
62
17
16
79
56
55
8
10
19
20
13
11
21
6
4
5
22
7
13
10
16
17
8
19
6
5
4
3
2
1
18
51
53
52
54
1
12
+
–
–
+
–
4
3
2
5
9
10
7
6
8
11
15
17
11
26 – 90
93 – 100
1 – 39, 48–73
40 – 47
10 9 8 7 6 17 18 19 22 23 24 25 3
4
13
7
9
11
19
21
23
3
5
1
10
2
CONTRAST
KEY IN0
KEY IN1
CLK
DATA
CE
LCD 10V
COLOR
GND
VOL–
VOL+
GND
12
17
25
26
SERVO
BOARD
CN101
LCH
RCH
CN651(1/2)
17
19
J1
FM/AM
ANTENNA
FM
ANT
AM
ANT
ANT
AM
ANT
+8V FM
+8V AM
S–
METER
METER
SD
ST
ST
FM 8V
AM 8V
L OUT
R OUT
AM DET
IFC–AM
IFC–FM
VCO
VT
LO/DX
SEEK
FM/AM TUNER UNIT
TU1
L.P.F.
Q52
+5V REG.
Q31
ANT +B
+5V
PLL
IC31
VDD
XI
XO
CE
CLK
D IN
D OUT
SEK.OUT
IF IN
FM IFC
AM OSC
FM OSC
FM OSC
LO/DX
PD
X31
7.2MHz
ANT +B
SYSTEM
CONTROLLER
IC701
VOLCE
VOLSO
VOLCKO
BEEP
PW SEL
MUTE
AMPMUTE
AMPON
PW ON
FM ON
TUN ON
TELMUTE
ILLUMI IN
ACCIN
NOSESW
COLOR
LCDCE
LCDSO
LCDCKO
KEY IN1
KEY IN1
KEY IN0
KEY IN0
RCIN0
RCIN1
RCIN0
RCIN1
RCIN1
CONTRAST
ILL ON
KEYACK
AVREF
AD ON
VOL+
VOL+
VOL–
VOL–
RAMBU
SYSRST
BUSON
UNICKO
UNICKI
BUIN
UNISO
UNISI
LOCKIN
VSM
ST/MONO
SD IN
PLLSI
PLLSO
PLLCKO
PLLCE
X702
32.768KHz
X701
5MHz
RESET
IC732
RAM RESET
IC731
8 LOCKIN
2 UNISI
7 BUIN
4 UNICLK
9
MUTE
3
DATA OUT
20
LO 12V
12
MECHA ON
27
28
5V
11
MD ON
6
LINKOFF
1 BUSON
5 RESET
CN651(2/2)
DC-DC
CONVERTER
IC651
REG.SW
Q652
REG.SW
Q672
REG.
Q651
+12V REG.
Q671
+14.4V
+14.4V
+14.4V
SERVO BOARD CN101
UNISI
UNISO
BUIN
UNICLK
BUSON
BUSON
RESET
BUS CONTROL
IC501
DATA
OUT
DATA
IN
OUT
DATA
IN
BU IN
CLK IN
CLK IN
BUSON
RST
RST
DATA
CLK
BATT
RST
BUS
ON
SW
Q503
SW
Q501
BUS ON
COLOR
LCDCE
LCDSO
LCDSO
LCDCKO
AUXIN R
AUXIN L
MDIN L
MDIN R
FMIN L
FMIN R
AMIN L
AMIN R
CE
DATA
CLK
FNTO1
FNTO2
REO1
REO2
TCO2
FDIN2
VCT
FDIN1
TCO1
ELECTRICAL
VOLUME
CONTROL
IC301
S702
(POWER SELECT)
(POWER SELECT)
MUTE SW
Q351
LINE AMP
IC331
LINE AMP
IC331
1
2
3
5
6
7
COM +8V
+5V
+5V
BZ701
BEEP SW
Q701
AD ON
AD SW
Q551(1/2)
AD SW
Q551(2/2)
CNJ501
(BUS CONTROL IN)
6
5
4
4
7
1
2
3
8
REG.
Q631
REG.
Q632
SW
Q633
CONTRAST
CONTROL
Q634, 637
COLOR
LCDCE
LCDSO
LCDCLK
KEY–IN1
KEY–IN0
RCIN0
RCIN1
VOL+
VOL–
J551
(REMOTE IN)
12
11
11
10
9
8
7
6
5
5
4
3
2
2
1
CNP801
ROTARY
ENCODER
RE801
SWITCH
LSW801–821
VLC0
VLC1
VLC2
VLC3
VLC4
VLC5
CLK
DATA
STB
KEY IN1
KEY IN2
KEY IN3
KEY IN4
DIMMER
POWER
ON
SEG01–SEG65
COM00–COM07
LIQUID CRYSTAL DISPLAY LCD801
LCD DRIVE
IC801
D813–818, 821–823
LSW802, 807, 812
LSW801, 803–806
LSW808–811, 813–821
LAMP
DRIVE
Q805, 807
POWER SW
Q806
PL801, 802
ACC
CHECK
Q531
MUTE SW
Q681
COM+8V
AM+8V
FM+8V
ANT+B
VCC
AMP+B
ANT+B
STB
MODE1
MODE2
COM8V
AM8V
FM8V
BU+B
REGULATOR
IC601
+14.4V
MUTE
STNBY
POWER AMP
IC381
CNJ351
BUS AUDIO IN
L
R
LINE OUT FRONT
L
R
LINE OUT REAR
L
R
1
9
4
12
2
10
3
11
5
6
13
14
7
CNP681
P.UP 5V
ACC
ILLUMI
TELMUTE
ANT REM
AMP REM
BATT
REAR RCH-
REAR RCH+
FRONT RCH-
FRONT RCH+
FRONT LCH-
FRONT LCH+
REAR LCH-
REAR LCH+
+14.4V
F1
10A
MAIN BOARD
•
SIGNAL PATH
: MD
: FM
13
24
RESET
S551
60 RESET
65
NOSESW
NOSESW
15
1
FM-
DET IN
9
XO
10
XI
RDS
IC401
8
X1
9
X2
15
CLK
12
RDS
CLK
13
RDS
DATA
30
DATA
X751
8MHz
X401
4.332MHz
6
5
2
1
3
7
+9V
AF-SEEK SW
Q53
66
TUNER-MUTE
PLL-DI
PLL-DO
PLL-CLK
41
CE
67
AF-SEEK
39
40
38
LPF SW
IC51
63 SEEK OUT
70 ST
71 SD
70 ST
71 SD
56
AM S-METER
57
FM S-METER
RDS S-METER
+B SW
Q401
BUFFER
Q1
RV1
14
RESET
16
BU-IN
45
UNISI
42
RQ
46
SO
61
TU ON
65
FM ON
43
LINK-OFF
TUNER CONTROLLER
IC751
FM +8V
17
BUSON
44
UNICLK
C670RDS
C670
C670
9V REG.
Q51
C670
FON
TON
FON
TON
TELMUTE
ILLUMI
ACC
Q502
C670RDS
BU OVER
CHECK
Q504
1
DSEL1
Q61
Q71
Q81
MUTE SW
Q352
23 FM DET
S701
(FREQUENCY SELECT)
FM 50k
AM 9k
FM 200k
AM 10k
C670: E
CN551
LED DRIVE
Q803, 804
16
18
17, 19
Q261
Q161
Q251
Q151
Q181
Q281
Q191
Q291
C670RDS
XT IN
XT OUT
X IN
X OUT
B.UP 5V
P.UP 5V
– 9 –
– 10 –
MDX-C670/C670RDS
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