Sony XR-CA800 Service Manual ▷ View online
XR-CA800
21
21
6-9.
SCHEMATIC DIAGRAM – KEY Board –
•
See page 14 for Waveforms.
• See page 23 for IC Block Diagram.
R991
R992
R993
FB901
R979
R923
C991
C992
R987
C983
C982
C986
R983
R988
R982
R981
R984
R986
R985
R918
R913
R912
R917
C910
FB902
C911
R914
C900
C902
R911
X910
C904
C903
C905
R915
R916
D910
R910
R919
C907
R902
R903
C908
LED911
LED913
LED910
LED912
R973
R974
R972
R971
R922
R921
D904
D903
D902
D901
R904
R901
CN901
C906
IC903
IC900
LCD901
IC902
LED900
LSW921(2/2)
R900
LSW921(1/2)
C901
D972
D900
C912
4.7k
4.7k
4.7k
0
220
0.1
0.1
47k
680p
0.022
0.22
1M
220
220
220
1k
1k
1k
47k
100k
470
100k
0.1
0.1
100k
0.1
47
6.3V
1M
4MHz
0.1
22
6.3V
22
6.3V
100k
100k
MA111
1k
10
330p
120k
270k
1
NSSW440-BRS
NSSW440-BRS
NSSW440-BRS
NSSW440-BRS
150
120
120
150
220
220
MA8068-TX
MA8068-TX
MA8068-TX
MA8180-TX
330
330
14P
0.01
RRX9000-0401R#01
LC75874W
RRX9000-0601#1
RRX9000-0501
LS6J3M-1SR-T
680
LS6J3M-1SR-T
0.1
MA8051-M-TX
MA8051-M-TX
0.1
CE
CE
DI
DI
CL
CL
SEG03
SEG04
SEG0
5
SEG0
6
SEG08
SEG09
SEG
10
SEG11
SEG12
SEG1
3
SEG14
SEG1
5
SEG
16
SEG17
SEG18
SEG19
SEG
20
SEG21
SEG
22
SEG
24
SEG25
SEG
26
SEG
27
SEG28
SEG
29
SEG30
SEG
31
SEG32
SEG
33
SEG34
SEG35
SEG
36
SEG37
SEG3
8
SEG
39
SEG40
SEG
41
SEG42
SEG
43
SEG
44
SEG45
SEG
46
SEG47
SEG
48
SEG49
SEG
50
SEG52
SEG5
3
SEG
54
SEG55
SEG5
6
SEG57
SEG58
SEG
59
SEG60
SEG61
SEG6
2
SEG63
SEG64
SEG65
S
EG6
6
COM
2
COM
3
COM
4
S
EG03
S
EG04
S
EG05
SEG06
S
EG0
7
SEG08
SEG09
SEG10
SEG11
S
EG1
2
SEG13
S
EG14
S
EG15
SEG16
S
EG
1
7
S
EG1
8
SEG19
SEG20
SEG21
S
EG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
SEG40
SEG41
SEG42
SEG43
SEG4
4
SEG4
5
SEG46
SEG4
7
S
EG
4
8
SEG49
SEG50
SEG51
SEG
52
SEG5
3
SEG54
SEG55
SEG56
SEG57
SEG58
SEG59
SEG60
SEG6
1
SEG62
SEG63
SEG64
SEG65
SEG66
COM1
COM2
COM3
COM4
COM
1
COM
1
COM
2
COM
3
SEG23
SEG23
SEG2
5
SEG26
SEG
29
SEG51
SEG51
SEG53
SEG3
1
SEG33
SEG07
SEG07
SEG09
S
EG1
0
SEG11
SEG13
SEG15
SEG1
7
SEG1
8
GND
KEY-1
KEY-0
+B
SIRCS
RE-1
RE-0
DOOR-SW
GND
+B
LCD-DATA
LCD-CLK
LCD-CE
LCD-INH
OSC
VSS
VDD
VLCD
VLCD1
VLCD2
S
E
G
0
5
S
E
G
0
6
S
EG
0
7
S
E
G
0
8
S
E
G
0
9
S
EG
1
0
S
E
G
1
1
S
E
G
1
2
S
EG
1
3
S
EG
1
4
S
E
G
1
5
S
EG
1
6
S
E
G
1
7
S
EG
1
8
S
E
G
1
9
S
E
G
2
0
S
E
G
2
1
S
E
G
2
2
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
SEG40
SEG41
SEG42
S
E
G
4
3
S
E
G
4
4
S
E
G
4
5
S
E
G
4
6
S
EG
4
7
S
E
G
4
8
S
EG
4
9
SE
G
5
0
S
EG
5
1
S
E
G
5
2
S
E
G
5
3
S
E
G
5
4
S
EG
5
5
S
E
G
5
6
SEG
5
7
S
EG
5
8
SE
G
5
9
S
E
G
6
0
S
E
G
6
1
SE
G
6
2
SEG63
SEG64
SEG65
SEG66
COM1
COM2
COM3
COM4
S
E
G
0
4
SE
G
0
3
AMBER/ILL-ON
GREEN/DIM
G
1/T
O
U
T
D
0
D
1
D
2
/C
D
3
/K
S
0
S
1
S
2
S
3
G
3
G
2
V
S
S
X
IN
X
O
U
T
C
N
V
S
S
R
ES
E
T
F0
F1
G
0/IN
T
V
D
D
VCC
NC
V_PO
V_LIN
GND_A
LNS
GND_C
V_CO
GND_L
V_STBY
NC
NC
V_IN
V_AGC
NC
IN
L_
LCD DRIVER
LIQUID CRYSTAL DISPLAY
SIRCS
CONTROLLER
CONTROL
REMOTE
RECEIVER
CONTROL
REMOTE
RECEIVER
(
)
(LCD BACK LIGHT)
LED910-913
(POWER ON/OFF)
FLASH-W
LCD-DATA
LCD-CE
LCD-CLK
(Page 19)
XR-CA800
22
22
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC51
SAA6588T-118
IC301
CXA2509AQ-T4
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
+
–
–
+
–
+
–
+
–
+ –
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
21
22
23
26
27
28
29
30
31
32
33
34
37
38
39
40
24
25
PBFB1
PBRIN1
PBREF1
PBFIN1
35
36
PBGND
VCT
PBFIN2
PBREF2
PBRIN2
PBFB2
PBEQ1
PBOUT1
VCC
TAPEIN1
AUXIN1
MSLPF
LINEOUT1
NC
NC
G2FB
G1FB
MSTC
DGND
MSOUT
NC
NC
INSW
TAPESW
MSMODE
DRSW
MSSW
NC
NC
LINEOUT2
DIREF
AUXIN2
TAPEIN2
PBEQ2
PBOUT2
GND
F2
120
µ
/70
µ
X1
X1
VCT
+
F1
120
µ
/70
µ
24dB
F3
LPF
VCC
DETECT
MS ON/
OFF
FWD/RVS
TAPE EQ
TAPE/AUX
NR BIAS
24dB
MS
MODE
T2
T1
IC331
TDA7406T
SOFT STEP FADER
SOFT STEP FADER
SOFT STEP FADER
SOFT STEP FADER
MAIN SOURCE
SELECTOR
MIXING
SELECTOR
INPUT
MULTIPLEXER
TAPER
PDR+
PD
–
PDL+
PAUSE
PHONE
TIM
NAVI
AM IF
CMPX
1
2
3
4
5
6
7
8
9
10
11
TAPE
PD
PHONE
TIM
NAVI
TAPEL
MDR
MDL
CDR
CDL 40
41
42
43
44
PAUSE
BEEP
IN-GAIN
+AUTO ZERO
SOFT STEP
VOLUME
7 BAND
EQUALIZER
SOFT MUTE
LOUDNESS
+
+
SWACOUT 37
HPF
ACOUTL 38
ACOUTR 36
OUTPUT
SELECTOR
SWIN 34
ACINR 35
REAR
AC IN
SW
MAIN
MIXER
FRONT
ACINL
MIXINLF
MIXINLR
MIXINRR
MIXINRF
OUTLF
OUTLR
OUTRF
OUTRR
25
26
27
28
29
30
31
32
33
SUB
WOOFER
FILTER
SOFT STEP FADER
OUTSW
24
MONO FADER
DIGITAL CONTROL
IIC BUS
SPECTRUM
ANALYZER
22
23
VDD
DEMODULATOR
+STEREO ADJUST
+STEREO BLEND
25kHz
LPF
HIGH-CUT
S & H
PILOT
CANCELLATION
PLL
PILOT
DET
80kHz
LPF
FM/AM
NOISE BLANKER
STD
IN GAIN
AM/MPX2
MULTIPATH
DETECTOR
D/A
CONVERTER
QUAL
PULSE
FORMER
SAOUT
SACLK
21
SCL
20
SDA
GND
ATT
19
18
17
QUAL
16
MPOUT
MPIN
LEVEL
13
14
15
MPX1
12
CREF 39
MD
CD
FM
AM
23
XR-CA800
IC351
LB1930M-TLM
IC611
BA4908-V3
1
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
+
–
+
–
+
–
+
–
OVER VOLTAGE
PROTECT
REGULATOR
1
2 3 4
5
6
7
8
9
10
12
11
NC
TUNER8.7 ANT SW
TUNER5.6 SW
STB
VDD5.6V
AMP
VCC
ANT
COM8.7V
TUNER5.6V
TUNER8.7V
GND
IC581
MM1175XFF
RESET
SWITCH
BATT
SWITCH
1
2
3
4
5
6
7
8
9
10
14
13
12
11
BUS ON
OUT
RESET
OUT
BATT
CLK
OUT
VREF
DATA
IN/OUT
GND
BATT
CHECK
CHECK
CLK
IN
IN
BUS ON
IN
IN
RESET
IN
IN
VCC
DATA IN
DATA OUT
– KEY Board –
IC902
RRX9000-0601#1
16
1
2
3
4
5
6
7
8
15
14
13
11 10
12
9
L IN
L IN GND
L
V STBY
VCC
NC
NC
VPO
NC
GND A
V IN
V AGC
LNS
VCO NC
GND
C
INPUT
SLAGE
320kHz
AGC
320kHz
/500kHz
PULSE
COUNTER
PULSE
FORMER
NOISE
SUPPRESSION
BANDGAP
REFERENCE
24
XR-CA800
6-10.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC501 MN101C49KTF (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 FM/AM tuner unit (TU1)
(A/D input)
(A/D input)
3
NIL
I
Not used (fixed at “L”)
4
KEYIN1
I
Key input terminal (A/D input) LSW902, LSW905 to LSW911, S902 to S905
(MENU, SOUND, ENTER, S SCROLL, PTY D DISPLAY, LIST, AF, TA, > M SEEK+,
. m SEEK–, DISC/PRESET+, DISC/PRESET– keys input) Fixed at “H” in this set
(MENU, SOUND, ENTER, S SCROLL, PTY D DISPLAY, LIST, AF, TA, > M SEEK+,
. m SEEK–, DISC/PRESET+, DISC/PRESET– keys input) Fixed at “H” in this set
5
KEYIN0
I
Key input terminal (A/D input) LSW901, LSW903, LSW904, LSW914 to LSW919, S906, S907
(OFF, SOURCE, MODE o, SHUF 6, 5, 4, 3 REP, 2, 1 keys input)
(OFF, SOURCE, MODE o, SHUF 6, 5, 4, 3 REP, 2, 1 keys input)
6
RCIN0
I
Rotary remote commander key input terminal (A/D input)
7
QUALITY
I
Noise level detection signal input at SEEK mode (A/D input)
8
MPTH
I
Multi-path detection signal input from the RDS decoder (IC51) (A/D input)
9
DSTSEL
I
Destination setting terminal Fixed at “L” in this set
10
VREF+
I
Reference voltage (+5V) input terminal (for A/D converter)
11
VDD
—
Power supply terminal (+5V)
12
OSCOUT
O
Main system clock output terminal (18.432 MHz)
13
OSCIN
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”)
18
LCDSO
O
Serial data output to the liquid crystal display driver (IC900)
19
LCDCE
O
Chip enable signal output to the liquid crystal display driver (IC900) “H” active
20
LCDCKO
O
Serial data transfer clock signal output to the liquid crystal display driver (IC900)
21
NCO
O
Not used (open)
22
SIRCS_RESET
O
SIRCS reset signal output terminal
23
LCUBE_SEL
I
Destination setting terminal “H”: L-cube model
24
SYSRST
O
Reset signal output to the SONY bus interface (IC581) “L”: reset
25
BUSON
O
Bus on/off control signal output to the SONY bus interface (IC581) “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 (IC51)
“H” active
“H” active
28
BUIN
I
Battery detection signal input from the SONY bus interface (IC581)
“L” is input at low voltage
“L” is input at low voltage
29
SIRCS
I
SIRCS remote control signal input from the SIRCS controller (IC903)
30, 31
NIL
I
Not used (fixed at “L”)
32
NIH
I
Not used (fixed at “H”)
33
RESET
I
System reset signal input from the reset signal generator (IC551) and reset switch (S551)
“L”: reset “L” is input for several 100 msec after power on, then it changes to “H”
“L”: reset “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 (IC751)
36
PW_ON
O
Main system power supply on/off control signal output “H”: power on
37
NCO
I
Not used (open)
38
ACCIN
I
Accessory detection signal input “L”: accessory on
39
NCO
O
Not used (open)
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