Sony CDX-V7800X Service Manual ▷ View online
21
• IC801 µPD17708GC-618-3B9 (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
SIRCS
I
Wireless remote commander input
2
SELF SW
I
Self switch input
3
DOOR
I
Front panel open/close detection input
4
NOSE
I
Front panel with/without detection input
5
NC
—
Not used. (Connect to ground)
6
SYSRST
O
Rest output for slave microcomputer IC.
7
DOOR IN
O
CD door open/close detection output
8
MUTE
O
Mute on/off control output
9, 10
NC
—
Not used. (Open)
11
BAND-SW
I
Initial setting switch input
12
AREA1-SW
I
Destination check input 1 (Fixed at L in this set)
13
AREA2-SW
I
Destination check input 2 (Fixed at H in this set)
14
NC
—
Not used. (Open)
15
PARK
I
Parking signal detection input
16
TEL MUTE
I
Attenuator on/off control input
17
POWER IC ON
O
Power supply control output to power amplifier IC.
18
SEEK
O
SEEK output
19
AMP MUTE
O
Output control to power amplifier IC.
20
NC
—
Not used. (Open)
21
GND3
—
Ground
22
NC
—
Not used. (Connect to ground)
23, 24
KEYIN2, 1
I
Key input of A/D converter.
25
ROT-IN
I
Rotary commander A/D value input
26
S-METER
I
S-meter input
27
TEST-SW
I
Initial setting switch input (Fixed at H in this set)
28
AM IFC
I
AM center frequency counter input
29
FM IFC
I
FM center frequency counter input
30
VDD2
—
Power supply pin
31
VCOH FM
I
FM input at VCO is FM.
32
VCOL AM
I
AM input at VCO is AM.
33
GND2
—
Ground
34
NC
—
Not used. (Open)
35
EO1 PDOUT
O
Error out output
36
TEST0
I
Fixed at L in this set.
37, 38
NC
—
Not used. (Open)
39
LCL/DX
O
LOCAL/DX select output
40
BEEP
O
Beep output
41
ACC IN
I
Accessory input
42, 43
RE1, 2
I
Rotary encoder input 1, 2
44
NC
—
Not used. (Open)
45
MONO
O
Monaural output (H: Monaural, L: Stereo)
46
SD
I
SD input
47
VOL CE
O
Chip enable output for Electric volume IC.
48
VOL CLK
O
Cloch output for Electric volume IC.
49
VOL DATA
O
Data output for Electric volume IC.
50
NC
—
Not used. (Open)
51
FM ON
O
FM system power control output (H: FM ON)
52
AM ON
O
AM system power control output (H: AM ON)
53
LCD CE
O
Chip enable output for LCD driver IC.
54
ILL ON
O
Front panel backlight control output (H: Illumination ON)
55
NC
—
Not used. (Connect to ground)
56, 57
NC
—
Not used. (Open)
22
Pin No.
Pin Name
I/O
Pin Description
58
ANT ON
O
Car antenna control output
59
EZ SEL
I
Rotary commander shift key input
60
POWER ON
O
System power on/off control and power amplifier control output
61 – 63
NC
—
Not used. (Open)
64
ST IN
I
FM stereo indicator input (L: FM STEREO ON, H: FM MONO ON)
65
LCD CK0
O
Clock data output for LCD driver IC.
66
LCD SO
O
Serial data output for LCD driver IC.
67
NC
—
Not used. (Open)
68
MSC
O
Serial clock output to slave microcomputer IC.
69
MSI
I
Serial input from slave microcomputer IC.
70
MSO
O
Serial output to slave microcomputer IC.
71
MSRQ
I
Serial request input from slave microcomputer IC.
72
MCS
O
Chip select output to slave microcomputer IC.
73
NC
—
Not used. (Open)
74
VREF
—
Reference power supply voltage pin
75
GND1
—
Ground
76
X OUT
O
Crystal oscillator output (4.5 MHz)
77
X IN
I
Crystal oscillator input (4.5 MHz)
78
BU IN
I
Back-up power supply input
79
VDD1
—
Power supply pin
80
RESET
I
Reset input
23
23
CDX-V7800X
AM ANT
R-OUT
FM ANT
2
1
16
TUNER UNIT
TU601
R-CH
L-CH
VIDEO OUT
MPEG
SECTION
5
TONE
FL
RL
23
22
21
,0
36
28
37
38
27
18 17 16
12
11
5
3
9
7
4
22
STBY
MUTE
RR+
RR-
FR+
FR-
TEL MUTE
BATT
AMP REM
ACC
BATT
R-CH
R-CH
ACC
ANT REM
13
RL–
10
6
5
16
7
RL+
2
3
11
4
12
FL–
9
1
FL+
PJ401-5
PJ401-3
PJ401-1
CNP901
IN2
IN1
POWER AMP
IC902
47
49
48
SYSTEM CONTROL
IC801(1/2)
VOL CE
VOL DATA
VOL CLK
8
MUTE
35 PDOUT
31 VCOH FM
32 VCOL AM
28 AM IFC
26 S-METER
46 SD
29 FM IFC
4
LCL/DX
5
VT
51 FM ON
BATT
52 AM ON
68 MSC
BATT
BATT
LOW PASS
FILTER
Q603,604
6
VCO
11
MONO
19
S-METER
20
SD
21
IFC/SEEK
8
FM +B
9
TU +B
FM POWER
CONTROL
Q602,607
10
AM +B
AM POWER
CONTROL
Q601,604
DRIVER 5V
MECHA ON
REG
Q905
REG
Q901
CD MECHA
POWER CONTROL
Q906-908
POWER
CONTROL
Q909,923,924
Signal path
: FM
: AM
: CD VIDEO
: CD AUDIO
04
CE
DI
CL
Q406
Q405
AUDIO3.3V
D3.3V
CD ON
CD POWER
CONTROL
Q902-904
Q902-904
AM DET 12
L-OUT 18
22
ST IND
64 ST IN
39 LCL/DX
69 MSI
70 MSO
71 MSRQ
72 MCS
6 SYSRST
2 SELF SW
40
BEEP
17
POWER ON
19
AMP MUTE
16
TEL MUTE
41
ACC IN
78
BU IN
58
60
ANT ON
AMP ON
1 AMP ON
5 BU+B
2
AMP+B
4
VCC
ACC CHECK
Q913,914
AM POWER
CONTROL
Q915,916
REG
IC904
BU CHECK
Q911,912,922
ACC
BATT
MUTE DRIVE
Q401,402
BATT
BATT
BATT
BU CHECK
POWER SUPPLY
IC901
MPEG
SECTION
4
CD
SECTION
1
MPEG
SECTION
9
MPEG
SECTION
3
CD
SECTION
8
MPEG
SECTION
2
R-CH
Q407
16
AUX
IN
IN
A MUTE
VIDEO OUT
FRONT
REAR
AUDIO OUT
-4
-2
CNJ601
(ANTENNA)
MSC
MSI
MSO
MSRQ
MCS
SYSRST
SELF SW
VIDEO 6V
BU5V
A3.3V
ELECTRONIC VOLUME
IC401
3-2. BLOCK DIAGRAM — TUNER SECTION —
(Page 25)
(Page 24)
(Page 25)
(Page 25)
(Page 24)
(Page 25)
(Page 25)
24
24
04
TUNER
SECTION
1
MPEG
SECTION
7
MPEG
SECTION
6
TUNER
SECTION
8
A
TRACKING
COIL
FOCUS
COIL
OPTICAL PICK-UP
BLOCK
KSS-720A
M
M
LOADING
MOTOR
SPINDLE
MOTOR
SW3
(DISC IN)
SW2
(SELF)
SW4
(LIMIT)
SW1
(DOWN)
B
C
D
PD
E
F
6
12
13
10
11
8
9
5
4
M
6
SLED
MOTOR
DRIVE
LD
DRIVE
Q511
SLED
SERVO
TRACKING
SERVO
FOCUS
SERVO
SERVO
TRACKING
COIL
DRIVE
FOCUS
COIL
DRIVE
SPINDLE
MOTOR
DRIVE
LOADING
MOTOR
DRIVE
7
18
22
21
25
24
1
2
34
35
31
32
61
92
95
86
7
8
9
2
1
11
10
12
16
14
A + B + C + D
A + C
B + D
VCA
EFM
DEM
SERIAL
I/F
PWM
AMP
PWM
SUB CODE
PROCESSOR
CPU
I/F
AMP
A
+
B
+
C
+
D
+
B
+
C
+
D
COMP
COMP
D/A
I/F
EQ
AMP
APC
23
52
54
50
53
38
39
40
41
42
43
35
6
80
82
78
79
81
77
23
84
34
22
7
6
24
13
15
14
16
17
17
32
56
6
43
30
45
28
76
24
23
22
63
69
69
55
11
38
82
5
4
70
81
21
61
64
27
25
I - V
CONV
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
MDP
SE
TE
FE
RFDC
RFAC
FE
TE
RW/R
RFDC
RFAC
FOK
DATA
CLOCK
XLAT
SENS
SCLK
XRST
CD DATA
CD CKO
CD XLAT
CD XLAT
SENS
FOK
LM EJECT
LM LOADING
LM LOADING
RW/R
SLD MINUS
SLD MINUS
DRV OE
RESET
SCOR
SQCK
SQSO
GFS
SCOR
TEXT CLK
SQCK
SUBQ
TEXT IN
GFS
SELF SW
IN SW
LIMIT
SW
LOCK
EMPHI
C2PO
LRCK
BCK
LRCKI
BCKI
XTAI
PCMDI
PCMD
CD C2PO
CD LRCK
SELF SW
DA LRCK
DA BCK
DA DATA
DA XCK
CD PCMD
CD BCK
LOCK
EMPHO
SCLK
IC515
R-CH
L-CH
A/D
CONV
CLV
SERVO
CD SYSTEM CONTROL
IC513(1/2)
D SW
DSP
IC516
RF AMP
IC511
AMP
A
B
C
D
E
F
PD
LD
TR+
TR–
F+
F–
LD
DRIVER
IC512
M902
SLED MOTOR
NUTE1
NUTE2
M901
M903
Signal path
: CD AUDIO
CDX-V7800X
3-3. BLOCK DIAGRAM — CD SECTION —
(Page 23)
(Page 25)
(Page 25)
(Page 23)
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