Sony XR-CA670X Service Manual ▷ View online
XR-CA670X
21
21
6-9.
SCHEMATIC DIAGRAM – KEY Board –
•
See page 14 for Waveform.
R990
R986
R988
R987
C971
R983
R982
R981
LSW901(1/2)
LSW904(1/2)
LSW905(1/2)
LSW906(1/2)
LSW907(1/2)
LSW908(1/2)
LSW909(1/2)
LSW910(1/2)
LSW912(1/2)
LSW913(1/2)
LSW914(1/2)
LSW915(1/2)
LSW916(1/2)
LSW917(1/2)
LSW918(1/2)
LSW919(1/2)
LSW920(1/2)
LSW921(1/2)
LSW922(1/2)
IC901
IC971
R972
R979
R980
R978
R975
R976
R977
R985
C984
C983
C985
R989
C982
C981
D981
D983
C986
LED903
LED953
R966
R967
R960
R961
R962
R951
R950
R946
R947
R942
R941
R935
R936
R934
LED951
LED911
R931
R930
LED933
LED934
S911
S902
S903
R911
R901
R902
R912
R913
R903
R904
R914
R915
R905
R906
R916
R917
R907
R908
R918
R919
R909
R910
R920
R921
R971
CN901
LCD901
R970
D901
R927
R928
R929
LED952
LED954
D902
LSW912(2/2)
LSW913(2/2)
LSW914(2/2)
LSW901(2/2)
LSW919(2/2)
LSW915(2/2)
LSW916(2/2)
LSW920(2/2)
LSW921(2/2)
LSW917(2/2)
LSW918(2/2)
LSW922(2/2)
LSW906(2/2)
LSW909(2/2)
LSW910(2/2)
LSW904(2/2)
LSW908(2/2)
LSW907(2/2)
LSW905(2/2)
1M
1k
1k
1k
0.1
150
150
150
LC75874W
RS-770
100
470
470
470
470
470
470
0
0.1
0.1
1000p
39k
0.022
0.022
UDZSTE-175.1B
MA111
0.22
CL-195SR
CL-195SR
100
330
100
100
150
68
100
100
68
68
100
100
68
47
CL-195SR
CL-195SR
470
47
NSCW505T-ARS
NSCW505T-ARS
680
680
680
680
680
680
1k
1k
1.5k
1.5k
1.5k
1.5k
2.2k
2.2k
3.3k
3.3k
4.7k
4.7k
6.8k
6.8k
10k
1k
14P
0
UMZ6.8ENTR
100
68
47
CL-195SR
CL-195SR
UDZSTE-1718B
LS6J3M-1SR
LS6J3M-1SR
LS6J3M-1SR
LS6J3M-1SR
LS9J3M-1SR
LS9J3M-1SR
LS9J3M-1SR
LS9J3M-1SR
LS9J3M-1SR
LS9J3M-1SR
LS9J3M-1SR
LS9J3M-1SR
LS6J3M-1SR
LS9J3M-1SR
LS9J3M-1SR
LS6J3M-1SR
LS6J3M-1SR
LS6J3M-1SR
LS6J3M-1SR
S
E
G
2
9
S
E
G
3
0
S
E
G
3
1
S
E
G
3
2
S
E
G
3
3
S
E
G
3
4
S
E
G
3
5
S
E
G
3
6
S
E
G
3
7
S
E
G
3
8
S
E
G
3
9
S
E
G
4
0
S
E
G
4
1
S
E
G
4
2
S
E
G
4
3
S
E
G
4
4
S
E
G
4
5
S
E
G
4
6
S
E
G
4
7
S
E
G
4
8
S
E
G
4
9
S
E
G
5
0
S
E
G
5
1
S
E
G
5
2
S
E
G
5
3
S
E
G
5
4
S
E
G
5
5
S
E
G
5
6
S
E
G
5
7
S
E
G
5
8
S
E
G
5
9
S
E
G
6
0
S
E
G
6
1
S
E
G
6
2
S
E
G
6
3
S
E
G
6
4
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
SEG40
S
E
G
4
1
S
E
G
4
2
S
E
G
4
3
S
E
G
4
4
S
E
G
4
5
S
E
G
4
6
S
E
G
4
7
S
E
G
4
8
S
E
G
4
9
S
E
G
5
0
S
E
G
5
1
S
E
G
5
2
S
E
G
5
3
S
E
G
5
4
S
E
G
5
5
S
E
G
5
6
S
E
G
5
7
S
E
G
5
8
S
E
G
5
9
S
E
G
6
0
SEG61
SEG62
SEG63
SEG64
COM1
COM2
COM3
COM4
CL
CE
DI
S
1
S
2
S
3
S
4
S
5
S
6
S
7
S
8
S
9
S
1
0
S
1
1
S
1
2
S
1
3
S
1
4
S
1
5
S
1
6
S
1
7
S
1
8
S
1
9
S
2
0
S
1
S
2
S
3
S
4
S
5
S
6
S
7
S
8
S
9
S
1
0
S
1
1
S
1
2
S
1
3
S
1
4
S
1
5
S
1
6
S
1
7
S
1
8
S
1
9
S
2
0
S
2
1
S
2
2
S
2
3
S
2
4
S
2
5
S
2
6
S
2
7
S
2
8
DI
CE
CL
C
O
M
1
C
O
M
2
C
O
M
3
C
O
M
4
C
O
M
1
C
O
M
2
C
O
M
3
C
O
M
4
DOOR-SW
+B
LCD-CLK
LCD-CE
LCD-DATA
RE-1 (NC)
GND
GND
FLASH-W
KEY-1
KEY-0
+B
SIRCS
VDD
VLCD
VLCD2
VLCD3
VSS
OSC
INH
CE
CL
DI
RE-0 (NC)
REMOTE CONTROL
RECEIVER
SEG61
SEG62
SEG63
SEG64
COM1
COM2
COM3
COM4
SEG60
SE
G59
SE
G50
SE
G51
SE
G52
SE
G53
SE
G
54
SEG
55
SE
G
56
SE
G57
SE
G58
SEG
49
SEG
48
SEG
47
SE
G
46
SEG
45
SE
G
44
SE
G43
SE
G42
SEG41
SEG40
SEG30
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG21
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
S1
S2
0
S
19
S1
8
S17
S
16
S
15
S
14
S
13
S12
S
11
S
10
S
2
S
3
S4
S5
S6
S7
S8
S9
LIQUID CRYSTAL DISPLAY
S
1
S2
0
S1
9
S18
S17
S1
6
S1
5
S1
4
S1
3
S1
2
S1
1
S1
0
S2
S3
S
4
S
5
S
6
S
7
S
8
S
9
C
O
M
1
C
O
M
2
C
O
M
3
C
OM
4
CO
M
2
CO
M
3
CO
M
4
CO
M
1
S28
S2
7
S2
6
S2
5
S2
4
S23
S2
2
S21
S
EG
40
SE
G
30
S
EG
39
S
EG
38
S
EG
37
S
EG
36
S
EG
35
S
EG
34
SEG
33
SE
G
32
S
EG
31
S
EG
2
9
SE
G6
0
SEG
5
9
S
EG
50
SEG
51
SEG
52
SEG
53
SEG
54
S
EG
5
5
SE
G
5
6
SE
G
57
SEG
5
8
SEG
49
S
EG
4
8
S
EG
47
SEG
46
SEG
45
SEG
44
SEG
43
SEG
42
SE
G
41
S
EG
6
1
SEG
6
2
SEG
63
SEG
64
LIQUID CRYSTAL DISPLAY DRIVER
DSPL
EQ3
+
-
SEEK
ALBM+/ATA
BL SKIP/ALBM-
5
6
SHUF
4
REP
3
DISC +
2
DISC -
1
TA
LIST
PTY
OFF
SOURCE
BTM/MTL
SENS
ATT
-(VOLUME)
+(VOLUME)
SEL
DSO
AF
MODE
(LCD BACK LIGHT)
LED933,934
DSPL
EQ3
LED911,951
+
-
SEEK
OFF
-
+
SEEK
ALBM+/ATA
BL SKIP/ALBM-
5
6
TA
LIST
PTY
SHUF
4
REP
3
DISC +
2
DISC -
1
SEL
ATT
-
+
(VOLUME)
SOURCE
DSO
AF
MODE
LED903,953
BTM/MTL
SENS
(Page 19)
XR-CA670X
22
22
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC51
SAA6588T/V2-518
IC301
HA12231FP
IC351
LB1930M-TLM
IC401
BD3802F-FE2
IC581
BA8270F-E2
IC751
TDA8588J/N1/M5
SCOUT
MRO
MPTH
TCON
OSCO
OSCI
VSSD
VDDD
DAVN
SDA
VREF
MPX
VSSA
VDDA
AFIN
MAD
PSWN
SCL
2
1
6
15
11
13
16
14
12
INTERFACE
REGISTER
SIGNAL QUALITY
DECODER
CLOCKED
COMPARATOR
POWER SUPPLY
& RESET
TEST
CONTROL
OSCILLATOR
& CLOCK
PAUSE
DETECTOR
MULTI
PATH
DETECTOR
57kHz
8th ORDER
BAND-PASS FILTER
RDS/RDBS
DECODER
RDS/RDBS
DEMODULATOR
IIC BUS SLAVE
TRANSCEIVER
17
18
CIN
19
LVIN
20
8
7
DATA
CLOCK
DATA
CLOCK
4
4
5
9
10
3
4
5
20
GND
19
FIN (L)
18
RIN (L)
17
EQOUT (L)
16
TAI (L)
15
PBOUT (L)
14
RIP
13
MS DET
12
MS
11
VCC
1
VREF
2
FIN (R)
3
RIN (R)
4
EQOUT (R)
5
TAI (R)
6
PBOUT (R)
7
MS GV
8
120/70
9
MUTE
10
FOR/REV
LOW PASS
FILTER
RECT
MS
INPUT
AMP
INPUT
AMP
MA
1
2
2
3
4
5
6
7
8
9
10
VCC
IN2
S-GND
IN1
NC
NC
OUT2
NC
P-GND
OUT1
CONTROL
CIRCUIT
MOTOR
DRIVE
CIRCUIT
BUFFER
BUFFER
28
27
26
25
24
23
22
21
20
19
18
17
I
2
C BUS
LOGIC
16
15
VCO
FADER
(0 to –58,
– ∞dB)
FADER
(0 to –58,
– ∞dB)
FADER
(0 to –58,
– ∞dB)
FADER
(0 to –58,
– ∞dB)
EFFECT (OFF,6dB,
10dB,14dB)
EFFECT (OFF,6dB,
10dB,14dB)
BASS,TREBLE, MIDDLE
(–15dB to +15dB, 1dB STEP)
BASS,TREBLE, MIDDLE
(–15dB to +15dB, 1dB STEP)
VOLUME
(+23 to –79dB, – ∞dB
1dB STEP)
VOLUME
(+23 to –79dB, – ∞dB
1dB STEP)
INPUT GAIN
(0 to 15dB,1dB STEP)
INPUT SELECTOR
(4 STEREO INCLUDE 1 ISOLATION INPUT)
INPUT GAIN
(0 to 15dB,1dB STEP)
MUTE
MUTE
6
7
8
9
10
11
12
3
4
5
2
1
D-GND
A-GND
FIL
BUS-
RCH
AN
BUS-
LCH
TU-
RCH
TU-
LCH
CD-
RCH
CD-
LCH
D1
D2 DS11
13
DS21
14
DS31
SDA
SCL
MUTE
SEL
ADJ
VCC
OUT-
RL
OUT-
RR
OUT-
FL
OUT-
FR
DS32
DS22
DS12
VCC
VCC/2
ON
OFF
ON
OFF
TONE
PASS
PASS
TONE
PASS
PASS
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
ENABLE
LOGIC
STANDBY/
MUTE
BATTERY
DETECTION
CHIP DETECT/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
SWITCH
REGULATOR
SWITCH
REFERENCE
VOLTAGE
LOADDUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
16
18
20
22
24
26
28
30
32
34
36
TAB
OUT-FL-
OUT-FL+
OUT-RL-
OUT-RL+
IN-RL
S-GND
IN-RR
OUT-RR+
OUT-RR-
OUT-FR+
OUT-FR-
DIAG
ANT-REM
AMP-REM
TU5V
TAPE8.5V
VP
B.UP+B
SDA
SCL
VP2
PGND3
SVR
IN-FL
IN-FR
BEEP
PGND2
VP1
STB
PGND1
RST
CRES
AUDIO8.3V
GND
PANEL+B
CBU
RR
VP
FR
I
2
C BUS
MUTE
FL
RL
14
12
8
10
MUTE
23
XR-CA670X
6-10.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC501 MN101C49KSK (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VREF–
I
Reference voltage (0V) input terminal (for A/D converter)
2
VSM
I
FM and AM signal meter voltage detection signal input from the tuner unit (A/D input)
3
NIL
I
Not used
4
KEYIN1
I
Key input terminal (A/D input)
5
KEYIN0
I
Key input terminal (A/D input)
6
RC_IN0
I
Rotary remote commander key input terminal (A/D input)
7
QUALITY
I
Noise level detection signal input from the tuner unit (A/D input)
8
NIL
I
Not used
9
DSTSEL
I
Destination setting terminal
10
VREF+
I
Reference voltage (+5V) input terminal (for A/D converter)
11
VDD
—
Power supply terminal (+5V)
12
OSC2
O
Main system clock output terminal (18.432 MHz)
13
OSC1
I
Main system clock input terminal (18.432 MHz)
14
VSS
—
Ground terminal
15
XI
I
Sub system clock input terminal (32.768 kHz)
16
XO
O
Sub system clock output terminal (32.768 kHz)
17
MMOD
I
Selection signal of memory mode input terminal
“L”: single chip mode (fixed at “L” in this set)
“L”: single chip mode (fixed at “L” in this set)
18
LCDSO
O
Serial data output to the liquid crystal display driver
19
LCDCE
O
Chip enable signal output to the liquid crystal display driver “H” active
20
LCDCKO
O
Serial data transfer clock signal output to the liquid crystal display driver
21 to 23
NCO
O
Not used
24
SYSRST
O
System reset signal output to the SONY bus interface “L”: reset
25
BUSON
O
Bus interface control signal output to the SONY bus interface “L”: bus on
26
KEYACK
I
Input of acknowledge signal for the key entry Acknowledge signal is input to accept function
and eject keys in the power off status On at input of “H”
and eject keys in the power off status On at input of “H”
27
DAVN
I
Synchronized detection signal of RDS data block input from the RDS decoder “H” active
28
BU_IN
I
Battery detection signal input from the SONY bus interface “L” is input at low voltage
29
SIRCS
I
SIRCS remote control signal input from the remote control receiver
30
TUATT IN
I
Tuner muting on/off control signal input from the tuner unit “L”: muting on
31
NIL
I
Not used
32
VDD2
I
Power supply terminal (+5V)
33
RESET
I
System reset signal input from the reset signal generator and reset switch “L”: reset
“L” is input for several 100 msec after power on, then it changes to “H”
“L” is input for several 100 msec after power on, then it changes to “H”
34
TUNON
O
Tuner system power supply on/off control signal output “H”: tuner power on
35
BEEP
O
Beep sound drive signal output to the power amplifier
36, 37
NCO
O
Not used
38
ACCIN
I
Accessory detection signal input “L”: accessory on
39
NCO
O
Not used
40
TELATT
I
Telephone attenuate signal input At input of “H”, the signal is attenuated by –20 dB
Not used
Not used
41
NIH
I
Not used
42
BUSSO
O
Serial data output to the SONY bus interface
43
BUSSI
I
Serial data input from the SONY bus interface
44
BUSCKO
O
Serial data transfer clock signal output to the SONY bus interface
24
XR-CA670X
Pin No.
Pin Name
I/O
Description
45
I2CSIO
I/O
Two-way data bus with the tuner unit and electrical volume
46
NCO
O
Not used
47
I2CCKO
O
Serial data transfer clock signal output to the tuner unit and electrical volume
48
STB
O
Standby on/off control signal output to the power amplifier
“L”: standby mode, “H”: amplifier on
“L”: standby mode, “H”: amplifier on
49
NCO
O
Not used
50
ATT
O
Audio line muting on/off control signal output “H”: muting on
51
NCO
O
Not used
52
AMSON
O
Tape auto music sensor control signal output
“L”: auto music sensor on
“L”: auto music sensor on
53
N_ROUT
O
Forward/reverse control signal output
“L”: reverse direction, “H”: forward direction
“L”: reverse direction, “H”: forward direction
54
MTLON
I/O
METAL control in/out terminal
At initial mode: valid/invalid selection input of METAL function (valid at “L” input)
At normal mode: METAL on/off control signal output
(METAL on at “H” output)
At initial mode: valid/invalid selection input of METAL function (valid at “L” input)
At normal mode: METAL on/off control signal output
(METAL on at “H” output)
55
TAPATT
O
Tape muting on/off control signal output “H”: muting on
Active at ATA, FF/REW mode
Active at ATA, FF/REW mode
56
NCO
O
Not used
57
AMSIN
I
Whether a music is present or not is detected at auto music sensor
“L”: music is present, “H”: music is not present
“L”: music is present, “H”: music is not present
58
NCO
O
Not used
59
VOLATT
O
Pre amplifier muting on/off control signal output to the electrical volume “L”: muting on
60 to 64
NCO
O
Not used
65
FLASH_W
I
Internal flash memory data write mode detection signal input terminal “L”: data write mode
Not used
Not used
66
TESTIN
I
Setting terminal for the test mode “L”: test mode, normally fixed at “H”
67
RC_IN1
I
Rotary remote commander shift key input terminal “L”: shift key on
68 to 70
NCO
O
Not used
71
DIAG
I
State input from power amplifier
72
TUATT
O
Tuner muting on/off control signal output to the tuner unit “L”: muting on
73
NCO
O
Not used
74
EE_SIO
I/O
Two-way data bus for tuner EEPROM with the tuner unit
75
EE_CKO
O
Two-way bus clock signal for tuner EEPROM with the tuner unit
76, 77
NCO
O
Not used
78
DOORSW
I
Front panel open/close detection signal input “L” is input when the front panel is closed
79
DOORIND
O
LED drive signal output of the cassete tape slot illumination and Z indicator
“H”: LED on “H” is output to turn on the LED when front panel is opened
“H”: LED on “H” is output to turn on the LED when front panel is opened
80, 81
NCO
O
Not used
82
AD ON
O
A/D converter power control signal output
When the KEYACK (pin wh) that controls reference voltage power for key A/D conversion input
is active, “L” is output from this terminal to enable the input
When the KEYACK (pin wh) that controls reference voltage power for key A/D conversion input
is active, “L” is output from this terminal to enable the input
83
NCO
O
Not used
84
REL_T
I
Rotation detection signal input from supply reel sensor and take-up reel sensor on the mechanism
deck
deck
85
POS3
I
86
POS2
I
87
POS0
I
88
POS1
I
Tape position (EJECT/FF/REW/REV/
FWD mode) detect input from the tape
operation switch on the deck mechanism
FWD mode) detect input from the tape
operation switch on the deck mechanism
POS3: “L”: REV and EJECT mode, “H”: others mode
POS2: “L”: REW mode, “H”: others mode
POS0: “L”: EJECT mode, “H”: others mode
POS1: “L”: PLAY and FF in FWD mode, and REW
POS2: “L”: REW mode, “H”: others mode
POS0: “L”: EJECT mode, “H”: others mode
POS1: “L”: PLAY and FF in FWD mode, and REW
in REV mode, “H”: others mode
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