Sony CDX-C4750 / CDX-C6600 Service Manual ▷ View online
– 39 –
– 40 –
CDX-C4750/C6600
note:
• Voltage is dc with respect to ground under no-signal
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
no mark : FM
4-10. SCHEMATIC DIAGRAM — DISPLAY SECTION —
(Page 36)
– 41 –
– 42 –
• IC Block Diagrams
IC1 CXD2507AQ
IC3 BA6796FP-T1
XLON
SPOD
SPOC
SPOB
SPOA
CLKO
VDD
CNIN
SEIN
CLOK
XLAT
XLTO
DATO
52
53
54
55
56
57
58
59
60
61
62
63
64
51
SERVO AUTO
SEQUENCER
SEQUENCER
33
34
35
36
37
38
39
40
41
42
43
45
46
47
48
49
50
44
DATA
XRST
SENS
MUTE
SQCK
SQSO
EXCK
SBSO
SCOR
VSS
WFCK
EMPH
DOUT
C4M
FSTT
XTSL
XTAO
XTAO
XTAI
MNTO
20 21 22 23 24 25 26 27
29 30 31 32
28
LRCK
PCMD
BCLK
GTOP
XUGF
XPCK
VDD
GFS
RFCK
C2PO
XROF
MNT3
MNT1
1
2
3
4
5
6
7
8
9
9
10
11
12
16
17
18
19
13
14
15
FOK
MON
MDP
MDP
MDS
LOCK
TEST
FILO
FILI
PCO
VSS
VSS
AVSS
CLTV
AVDD
RF
BIAS
ASYI
ASYO
ASYE
WDCK
5
14
CPU
INTERFACE
SUB CODE
PROCESSOR
DIGITAL
CLV
EFM
DEMODULATOR
DIGITAL
PLL
ASYMMETRY
CORRECTOR
CORRECTOR
5
D/A
INTERFACE
ERROR
CORRECTOR
3
6
3
16K
RAM
DIGITAL
OUT
CLOCK
GENERATOR
4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
OPOUT
CH4-IN
CH4
CTL1
CTL2
FWD
REV
TRAY
GND
CH3 –
CH5 –
COM
CH4 +
CH3 +
CH3-IN
CH3
VREF
CH2
CH2-IN
VCC
VCC
CH1 –
CH2 –
CH1-IN
OP IN –
CH1
CH1 +
OP IN +
CH2 +
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT
DOWN
15
16
17
18
19
20
21
22
23
24
25
26
27
28
LOGIC
CTL1
CTL2
FWD
REV
V/I
IC2 CXA1782BQ
36
35
34
33
32
31
30
29
28
27 26 25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
37
38
39
40
41
42
43
44
45
46
47
48
PHD 2
PHD 1
PHD
LD
RF O
RF I
CP
CB
CC1
CC2
FOK
SENS
C.OUT
XRST
DATA
XLT
CLK
VCC
ISET
SL O
SL M
SL P
TA O
TA M
FSET
TG2
TGU
SRCH
FE O
FLB
FGD
FDFCT
FE M
FEI
FEO
FE BIAS
F
E
EI
VEE
TED
LPFI
TEI
ATSC
TZC
TDFCT
VC
APC
LEVEL S
FOK
MIRR
RF IV AMP1
RF IV AMP2
FE AMP
TTL
IIL
FZC COMP
DFCT
IIL
TTL
IIL DATA REGISTER
INPUT SHIFT REGISTER
ADDRESS DECODER
OUTPUT DECODER
TTL
IIL
TOG1-3
BAL1-3
FS1-4
TG1-2
TM1-7
PS1-4
F IV AMP
E IV AMP
BAL1
BAL2
BAL 3
TE AMP
TZC COMP
DFCT
TM1
DFCT
FS4
ATSC
WINDOW COMP
TOG1
TOG2
TOG3
FCS PHASE
COMPENSATION
FS1
F SET
TG2
TM7
TM3
TM4
TM5
TM6
ISET
TRACKING
PHASE
PHASE
COMPENSATION
HPF COMP
LPF COMP
TG1
FS2
TM2
RF M
– 43 –
IC401 TDA7462D
IC702 PCM1717E-S
SE3L
SE3R
MUTE
SDA
SCL
PAUSE
OUT FL
OUT FR
OUT RL
OUT RR
SUBOUT+
SUBOUT–
VDD
GND
CREF
SE1L
SE1R
MD+
MD–
CDL+
CDL–
CDR–
CDR+
PDR
PDGND
PDL
SE2L
SE2R
INPUT
GAIN &
AUTO
ZERO
ZERO
PAUSE
DETECT
INPUT MUL
TIPLEXER &
MIXING ST
AGE
REAR SIDE
SELECTOR
FRONT SIDE
SELECTOR
LOUDNESS
CONTROL
CIRCUIT
INPUT
GAIN
BEEP
LOUDNESS
CONTROL
CIRCUIT
SOFT
MUTE
VOLUME
CONTROL
CIRCUIT
COMPANDER
TREBLE/
BASS
CONTROL
CIRCUIT
SUBWOOFER
OUT
FADER
SUBWOOFER
LP
IIC
BUS
DIGITAL CONTROL CIRCUIT
POWER
SUPPLY
FRONT
FADER
FRONT
FADER
REAR
FADER
REAR
FADER
VOICE BANDPASS
HP
LP
SDA
SCL
1
2
3
4
5
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
3
4
5
6
7
18
19
20
17
16
15
14
8
9
10
13
12
11
2
1
CLK
CONTROL
INPUT
INTERFACE
DIGITAL
FILTER
5LEVE DAC
LOWPASS FILTER
CMOS
AMP
5LEVEL DAC
LOWPASS FILTER
CMOS
AMP
MODE
CONT
ROL
XTI
DGND
VDD
LRCIN
DIN
BCKIN
ZERO
D/C R
VOUTR
AGND
VCC
VOUTL
D/C L
MODE
RSTB
MD/DM0
MC/DM1
ML/MUTE
CLKO
XTO
NOISE SHAPER
IC803 BA8270F-E2
1
2
3
4
5
5
6
7
8
9
10
14
13
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUS ON
RST
BATT
CLK
VREF
DATA
GND
VCC
RST
BUS ON
BUS ON
CLK IN
BU IN
DATA IN
DATA OUT
– 44 –
IC601 TDA7427AD1
IC901 BA4903
SWITCH
LP1/LP2
LP1/LP2
PORT
EXTENSION
CHARGE
PUMP
TEST
LOGIC
16 BIT PROG
COUNTER
REF
OSCILLATOR
TIMER
CONTROL
SWITCH
OUT
SUPPLY
&
POWER ON
RESET
11-21 BIT PROG COUNTER
14 BIT PROG
COUNTER
SWITCH
AM/FM
PHASE
COMP
INLOCK
DETECTOR
11 BIT PROG
COUNTER
SWITCH
SWM/DIR
6 BIT PROG
COUNTER
SWITCH
SWM/DIR
PRE COUNTER
:32/33
I
2
C BUS
INTERFACE
SWITCH
AM/FM
VDD1
1
2
3
4
6
7
8
5
9
10
11
14
12
13
17
18
19
20
21
22
23
24
25
26
27
28
16
15
LP FM
LP HC
LP AM
V REF
LCL/DX
SEEK
NIL
MONO
OSCIN
OSCOUT
NC
SCL
SDA
IF AM
LPOUT
VDD2
GND AM
AM IN
FM IN
NC
GND D
VDD1
ADDR
HFREF
AMOSC
DOUT/INLOCK
SSTOP
IF FM
REGULATOR
VREF
+
–
+
–
THERMAL
SHUT
DOWN
OVER
VOLTAGE
PROTECT
PROTECT
CIRCUIT ON
5
1
2
3
4
AMP
ON
AMP
OUT
GND
VCC
VDD
OUT
OUT
ON
ON
5.7V
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