Read Sony ICF-M60LRDS / ICF-M60SRDS Service Manual online
ICF-M60LRDS/M60SRDS
20
20
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC1
CXA1019S
IC2
LC72137M-TLM
– KEY Board –
IC107
BU1924F-E2
1
2
3
4
5
6
7
8
9
10
15
14
13
12
11
FM
DISCRIMINATOR
AF POWER AMP
AM FE
FM IF
TUNING
METER
AM IF DET AGC
FM FE
23
22
21
20
24
25
19
18 17 16
29 28 27 26
30
GND
GND
AF OUT
VCC
RIPPLE
FIL
TER
AF IN
DET OUT
AFC AGC
AFC AGC
IF GND
METER
N.C
FM IF IN
AM IF IN
FM/AM BAND
SELECT
FM/AM
IF OUT
N.C
FE GND
AM RF IN
FM RF
REG OUT
FM OSC
FM RF IN
AFC
AM OSC
VOL
NF
FM DISCRI
GND
GND
11
10
9
8
7
6
5
4
3
2
1
12
13
14
15
16
19
20
UNLOCK
DETECTOR
POWER ON
RESET
UNIVERSAL
COUNTER
CCB
I/F
CE
DI
CL
DO
XOUT
AOUT
XIN
AIN
PD
VSS
VDD
B04
FMIN
AMIN
B01
B02
B03
I01
I02
IFIN
PHASE
DETECTOR
CHARGE
PUMP
REFERENCE
DIVIDER
SWALLOW
COUNTER
1/16,1/17
4BITS
12BITS
PROGRAMMABLE
DIVIDER
DATA SHIFT REGISTER
LATCH
1/2
17
18
ANALOG
DIGIT
AL
RCLK
NC
XO
XI
VSS2
T2
VDD2
T1
QUAL
RDA
T
VREF
MUX
VDD1
VSS1
VSS3
CMP
1
4
3
6
5
8
7
2
14
15
16
13
12 11 10
9
CLOCK
PLL 57kHz
RDS/ARI
COMPARATOR
8th SWITCHED
CAPACITOR
FILTER
ANTI-ALIASING
FILTER
BIPHASE
DECODER
PLL
1187.5Hz
DEFFERENTIAL
DECODER
TEST
5-10.
IC PIN FUNCTION DESCRIPTION
•
KEY BOARD IC101
µ
PD753017AGC-P08-88T (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1 to 20
LCD12 to LCD31
O
Segment drive signal output to the liquid crystal display
21 to 24
COM0 to COM3
O
Common drive signal output to the liquid crystal display
25
BIAS
O
Liquid crystal display drive bias control output terminal
26
VLCD0
I
Develop liquid crystal display drive voltage input terminal
27, 28
VLCD1, VLCD2
I
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage
29 to 32
KS0 to KS3
O
Key scan signal output of the key matrix
33
VSS
—
Ground terminal
34
NC
O
Not used
35
MUTE
O
Muting on/off control signal output terminal “L”: muting on
36
POWER
O
PLL low-pass filter power supply on/off control signal output terminal “L”: power on
37
FM
O
RDS decode circuit power supply on/off control signal output terminal “L”: power on
38
HOLD
I
HOLD switch input terminal “H”: hold on
39
AC
I
AC voltage detection signal input “L”: AC detected
40
SCAN
I
Comparator voltage detection signal input terminal
41
VDET2
I
Battery voltage detect signal input terminal “L” is input at low voltage
42
VDET1
I
Battery voltage detect signal input terminal “L” is input at low voltage
43
CLK/RDS
I
Serial data transfer clock signal input from the RDS decoder
44
DATA/RDS
I
Serial data input from the RDS decoder
45
SD
I
Station detector detect input from the CXA1019S
Stop level for SEEK, BTM, etc. is determined SD is present at input of “L”
Stop level for SEEK, BTM, etc. is determined SD is present at input of “L”
46
BUZZER
O
Beep sound drive signal output to the CXA1019M
47
DATA/PLL
O
Serial data output to the FM/AM PLL
48
LAT/PLL
O
Serial data latch pulse signal output to the FM/AM PLL
49
CLK/PLL
O
Serial data transfer clock signal output to the FM/AM PLL
50
CLK/EEPROM
O
Serial data transfer clock signal output to the EEPROM
51
DATA/EEPROM
I/O
Two-way data bus with the EEPROM
52
NC
I
Not used
53
LIGHT
O
Liquid crystal display back light LED drive signal output terminal “H”: back light on
54
VDD
—
Power supply terminal (+3V)
58
XT1
I
Sub system clock input terminal (32.768 kHz)
59
XT2
O
Sub system clock output terminal (32.768 kHz)
57
IC
—
Connected to power supply (+3V)
55
X1
I
Main system clock input terminal (4.19 MHz)
56
X2
O
Main system clock output terminal (4.19 MHz)
60
SHIFT CLOCK
O
Alert signal output for the shift clock circuit “L”: on, “H”: off Not used (open)
61
INITIAL
I
Model destination setting signal input terminal
62 to 67
KR0 to KR5
I
Key return signal input of the key matrix
68
RESET
I
System reset signal input from the reset signal generator “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”
69 to 80
LCD0 to LCD11
O
Segment drive signal output to the liquid crystal display
Click on the first or last page to see other ICF-M60LRDS / ICF-M60SRDS service manuals if exist.