Read Sony XR-CA310 / XR-L210 Service Manual online
XR-CA310/L210
26
26
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC200
SAA6588T-118
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
IC400
LC75421M-TLM
IC800
MM1175XFF (XR-CA310 only)
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
36
35 34 33
1
2
CCB
INTERFACE
CONTROL
CIRCUIT
LOGIC
CIRCUIT
CONTROL
CIRCUIT
+
–
–
+
–
–
32 31
+
–
30
29
28
+
–
27 26 25
24 23 22 21 20 19
+
–
+
–
–
+
–
–
R VREF
4
5
+
–
+
–
6
7
+
–
–
8
9
10
+
–
–
11 12 13
14 15 16 17 18
+
–
–
+
–
+
–
L VREF
3
LROUT
LFOUT
LFIN
LOUT
LSB
LBASS2
LBASS1
LTRE
LIN
LSELO
L5
L4
L3
L2
L1
VSS
VDD
RROUT
RFOUT
RFIN
ROUT
RSB
RBASS2
RBASS1
RTRE
RIN
RSELO
R5
R4
R3
R2
R1
VREF
CL
DI
CE
5-7.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC1 MN101C49KTL (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VREF –
—
Reference voltage (0V) terminal (for A/D converter)
2
VSM
I
FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU100)
(A/D input)
(A/D input)
3 to 6
NCI
I
Not used (fixed at “L”)
7
NOISE-DET
I
Noise level detection signal input at SEEK mode (A/D input)
8
MPTH
I
Multi-path detection signal input from the RDS decoder (IC200)
9
NCI
I
Not used (fixed at “L”)
10
VREF +
—
Reference voltage (+5V) terminal (for A/D converter)
11
VDD
—
Power supply terminal (+5V)
12
OSC2
O
Main system clock output terminal (18.432MHz)
13
OSC1
I
Main system clock input terminal (18.432MHz)
14
VSS
—
Ground terminal
15
XI
I
Sub system clock input terminal (32.768kHz)
16
XO
O
Sub system clock output terminal (32.768kHz)
17
MMOD
I
Setting terminal for the single chip mode “L”: single chip
18
LCD-SO (TX)
O
LCD serial data output to the liquid crystal display driver (IC900)
19
LCD-SI (RX)
I
LCD serial data input from the liquid crystal display driver (IC900)
20
LCD-CKO
O
LCD serial transfer clock signal output to the liquid crystal display driver (IC900)
21
TU-SDA
O
Serial data output to the FM/AM tuner unit (TU100)
22
TU-SI
I
Serial data input from the FM/AM tuner unit (TU100)
23
TU-SCL
O
Serial data transfer clock signal output to the FM/AM tuner unit (TU100)
24
LCD-RES
O
LCD reset signal output to the liquid crystal display driver (IC900) “L”: reset
25
LCD-CE
O
Chip enable signal output to the liquid crystal display driver (IC900) “H” active
26
KEYACK
I
Key acknowledge signal detect input from the liquid crystal display driver (IC900)
27
DAVN-RDS
I
RDS data request signal input from the RDS decoder (IC200) “H” active
28
B/U-IN
I
Battery detect signal input from the SONY bus interface (IC800) and battery detect circuit
“L” is input at low voltage IC800: Used for the XR-CA310 only
“L” is input at low voltage IC800: Used for the XR-CA310 only
29
NCI
I
Not used (fixed at “L”)
30
RAM BU
I
Internal RAM reset detection signal input terminal
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset “L”: RAM reset
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset “L”: RAM reset
31
TEST-IN
I
Setting terminal for the test mode “L”: test mode, Normally: fixed at “H”
32
NCI
I
Not used (fixed at “L”)
33
RESET
I
System reset signal input from the reset signal generator (IC2) and reset switch (S1)
“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
TU-ENABLE
O
Chip enable signal output to the FM/AM tuner unit (TU100) “H” active
35
BEEP
O
Beep sound drive signal output to the power amp (IC500)
36
POWER-ON
O
Main system power supply on/off control signal output terminal “H”: power on
37
ILL-IN
I
Not used (fixed at “H”)
38
ACC-IN
I
Accessory detect signal input terminal “L”: accessory on
39
NCO
O
Not used (open)
40
TEL-MUTE
I
Telephone muting signal input terminal At input of “H”, the signal is attenuated by –20 dB
Used for the XR-CA310 green illumination type only
Used for the XR-CA310 green illumination type only
41
NCI
I
Not used (fixed at “H”)
42
UNI-SO
O
Serial data output to the SONY bus interface (IC800) Used for the XR-CA310 only
43
UNI-SI
I
Serial data input from the SONY bus interface (IC800) Used for the XR-CA310 only
Click on the first or last page to see other XR-CA310 / XR-L210 service manuals if exist.