Sony ICF-M60LRDS / ICF-M60SRDS Service Manual ▷ View online
8
ICF-M60LRDS/M60SRDS
FM RF signal
generator
22.5 kHz frequency
deviation by 400 Hz
signal
Output level:
54 dB
deviation by 400 Hz
signal
Output level:
54 dB
µ
V
digital voltmeter
MAIN board
TP (GND)
TP (GND)
MAIN board
TP (SCAN)
TP (SCAN)
set
0.01
µ
F
MAIN board
TP (GND)
TP (GND)
MAIN board
TP (ANT IN)
TP (ANT IN)
COMPARATOR VOLTAGE ADJUSTMENT
Setting:
BAND button: FM
BAND button: FM
COMPARATOR VOLTAGE ADJUSTMENT
Adjustment Part
Frequency
Reading on
Display
Signal generator
Digital Voltmeter
RV1
98.00 MHz
98.027 MHz
High
t Low
(3V
t 0 V)
Adjustment Location: MAIN board (See page 9)
MAIN CLOCK FREQUENCY ADJUSTMENT
Setting:
BAND button: FM
BAND button: FM
MAIN CLOCK FREQUENCY ADJUSTMENT
Adjustment Part
Frequency Display
Frequency counter
CT101
87.5 MHz
4.2175 MHz
± 100 Hz
Confirmation
108 MHz
4.1550 MHz
± 5 kHz
Adjustment Location:
+
–
–
KEY board
TP (4.23 MHz)
TP (GND)
frequency counter
10 pF
CT101
Main Clock Frequency
Adjustment
TP
(4.23 MHz)
TP
(GND)
– KEY Board (Conductor Side) –
– KEY Board (Component Side) –
9
ICF-M60LRDS/M60SRDS
CT5 LW VCO Voltage Adjustment
(M60LRDS)
(M60LRDS)
– MAIN Board (Component Side) –
– MAIN Board (Conductor Side) –
– JACK Board
(Conductor Side) –
(Conductor Side) –
L5 MW VCO Voltage Adjustment
L8 SW VCO Voltage Adjustment (M60SRDS)
SW Tracking Adjustment (M60SRDS)
L7
CT6
CT6
LW Tracking Adjustment (M60LRDS)
CT3
L6-2
L6-2
MW Tracking Adjustment (M60LRDS)
L6-1
CT2
CT2
MW Tracking Adjustment (M60SRDS)
L4
CT2
CT2
FM Tracking Adjustment
RV1
Comparator
Voltage
Adjustment
T1
AM IF
Adjustment
TP
(VT)
TP
(SCAN)
TP
(SPOUT +)
TP
(SPOUT –)
TP
(GND)
TP
(ANT IN)
CT1
L2
L1
L2
L1
Adjustment Location:
ICF-M60LRDS/M60SRDS
11
11
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM (M60LRDS)
13
10
15
18
11
6
8
FM
FRONT-END
FM
IF AMP
AM IF AMP,
AGC, DET
ANTI-ALIASING
FILTER
PLL 57kHz
RDS/ARI
COMPARATOR
BIPHASE
DECODER
PLL
1187.5Hz
DEFFERENTIAL
DECODER
OSC
CLOCK
AM
FRONT-END
17
20
FM RF
IN
IN
IF
OUT
CF3
CF4
CF1
FM
RF
RF
FM
IF IN
IF IN
3
FM
DISCRIMINATOR
TUNING METER
FM
DISCRI
DISCRI
SP1
(SPEAKER)
AF
IN
IN
24
DET
OUT
AM
IF IN
IF IN
METER
MUX
OSC
OUT
OUT
OSC
IN
IN
NF
DATA/RDS
CLK/RDS
VOL
16
14 13
20
19
BAND
AM OSC
L5
AM OSC
L3
FM OSC
X1
75kHz
X103
4.332MHz
L6
MW/LW
FERRITE-ROD
ANTENNA
ANT1
FM
TELESCOPIC
ANTENNA
FM OSC
AM RF
IN
IN
9
REG
VREF
L1, 2
FM RF
FM/AM FRONT-END,
FM/AM IF AMP, DET, AGC, AF POWER AMP
IC1
RDS DECODER
IC107
FM/AM PLL
IC2
SYSTEM CONTROLLER
IC101
CT3
CT2
L6-1
(MW)
L6-2
(LW)
CT5
D5
CT1
RV2
VOL
RV1
CF2
+
+
L5
MW
VCO
VOLTAGE
CT5
LW
VCO
VOLTAGE
CT3, L6-2
LW
TRACKING
CT2, L6-1
MW
TRACKING
CT1, L1, 2
FM TRACKING
T1
AM IF
B.P.F.
BPF1
FM/AM SELECT
SWITCH
IC3 (1/2)
MUTING
Q8
D3 (2/2)
D1
D2
4
CLK
DRY BATTERY
SIZE “C”
(IEC DESIGNATION R14)
4PCS. 6V
µ-COM B+
(IC101 B+)
µ-COM
B+
RDS B+
(IC107 B+)
TUNER B+
(IC1 B+)
VT
16
DATA
AM/FM
2
43
BUZZER
46
DATA/PLL
CT101
MAIN CLOCK
FREQUENCY
DI
47
2
CLK/PLL
CL
49
3
LAT/PLL
CE
48
1
MUTE
AC
35
SCAN
40
FM
36
POWER
37
HOLD
38
53
VDET1
42
44
SD
45
AM IN
11
FM IN
XOUT
XIN
58
59
X102
4.19MHz
X1
X2
55
56
X101
32.768kHz
XT1
XT2
60
SHIFT CLOCK
LCD0 – LCD31
12
AOUT
18
AIN
17
PD
16
9
J1
v
J301
AC IN
RIPPLE
FILTER
Q301
B+ SWITCH
Q105
AC DETECT
Q102
COM0 – COM3
LIGHT
D101, 102
(LCD BACK LIGHT)
S102 – 124
(KEY MATRIX)
69 – 80, 1 – 20
21 – 24
KS0 – KS3
29 – 32
KR0 – KR5
62 – 67
LIQUID CRYSTAL DISPLAY
LCD101
HOLD
S101
ON
OFF
4
5
AF
OUT
AF
POWER
AMP
28
AFC/
AGC(J)
24
DATA/
EEPROM 51
CLK/
EEPROM 50
25
• SIGNAL PATH
: FM
: AM
T301
POWER
TRANSFORMER
D302
D301
VCC B+
(IC2, 3 B+)
D303 – 305
D306
39
VOLTAGE
DETECT
IC103
EEPROM
IC106
VDET2
41
VOLTAGE
DETECT
IC104
RESET
68
RESET SIGNAL
GENERATOR
IC105
+3V REGULATOR
IC102
COMPARATOR
IC3 (2/2)
+3V
REGULATOR
IC4
B+ SWITCH
Q10
LED DRIVE
Q101
DC/DC
CONVERTER
Q106, 107, T101
DATA
5
CLK
6
SHIFT CLOCK
Q103, 104
COMPARATOR
VOLTAGE
D8
RV3
TONE
TONE
CONTROL
SWITCH
Q9
BUFFER
Q108
AF
AMP
Q11
LW
13
LW SWITCH
Q7
MW SWITCH
Q6
D3 (1/2)
VT
ICF-M60LRDS/M60SRDS
12
12
5-2.
BLOCK DIAGRAM (M60SRDS)
13
10
15
18
11
6
8
FM
FRONT-END
FM
IF AMP
AM IF AMP,
AGC, DET
ANTI-ALIASING
FILTER
PLL 57kHz
RDS/ARI
COMPARATOR
BIPHASE
DECODER
PLL
1187.5Hz
DEFFERENTIAL
DECODER
OSC
CLOCK
AM
FRONT-END
17
20
FM RF
IN
IN
IF
OUT
CF3
CF4
CF1
FM
RF
RF
FM
IF IN
IF IN
3
FM
DISCRIMINATOR
TUNING METER
FM
DISCRI
DISCRI
SP1
(SPEAKER)
AF
IN
IN
24
DET
OUT
AM
IF IN
IF IN
METER
MUX
OSC
OUT
OUT
OSC
IN
IN
NF
DATA/RDS
CLK/RDS
VOL
16
14 13
20
19
BAND
AM OSC
L5
MW OSC
L3
FM OSC
X1
75kHz
X103
4.332MHz
L4
MW
FERRITE-ROD
ANTENNA
ANT1
FM/SW
TELESCOPIC
ANTENNA
FM OSC
AM RF
IN
IN
9
REG
VREF
L1, 2
FM RF
FM/AM FRONT-END,
FM/AM IF AMP, DET, AGC, AF POWER AMP
IC1
RDS DECODER
IC107
FM/AM PLL
IC2
SYSTEM CONTROLLER
IC101
CT2
D3 (1/2)
CT1
RV2
VOL
RV1
CF2
+
+
L5
MW
VCO
VOLTAGE
CT2, L4
MW
TRACKING
CT6, L7
SW
TRACKING
CT1, L1, 2
FM TRACKING
T1
AM IF
B.P.F.
BPF1
FM/AM SELECT
SWITCH
IC3 (1/2)
MUTING
Q8
CT6
D4 (1/2)
D3 (2/2)
D1
D2
4
CLK
DRY BATTERY
SIZE “C”
(IEC DESIGNATION R14)
4PCS. 6V
µ-COM B+
(IC101 B+)
µ-COM
B+
RDS B+
(IC107 B+)
TUNER B+
(IC1 B+)
VT
16
DATA
AM/FM
2
43
BUZZER
46
DATA/PLL
CT101
MAIN CLOCK
FREQUENCY
DI
ANT
47
2
5
CLK/PLL
CL
49
3
LAT/PLL
CE
48
1
MUTE
AC
35
SCAN
40
FM
36
POWER
37
HOLD
38
53
VDET1
42
44
SD
45
AM IN
11
FM IN
XOUT
XIN
58
59
X102
4.19MHz
X1
X2
55
56
X101
32.768kHz
XT1
XT2
60
SHIFT CLOCK
LCD0 – LCD31
12
AOUT
18
MW
8
AIN
17
PD
16
9
J1
v
J301
AC IN
RIPPLE
FILTER
Q301
B+ SWITCH
Q105
AC DETECT
Q102
COM0 – COM3
LIGHT
D101, 102
(LCD BACK LIGHT)
S102 – 124
(KEY MATRIX)
69 – 80, 1 – 20
21 – 24
KS0 – KS3
29 – 32
KR0 – KR5
62 – 67
LIQUID CRYSTAL DISPLAY
LCD101
HOLD
S101
ON
OFF
4
5
AF
OUT
AF
POWER
AMP
28
AFC/
AGC(J)
24
DATA/
EEPROM 51
CLK/
EEPROM 50
25
• SIGNAL PATH
: FM
: AM
T301
POWER
TRANSFORMER
D302
D301
VCC B+
(IC2, 3 B+)
D303 – 305
D306
39
VOLTAGE
DETECT
IC103
EEPROM
IC106
VDET2
41
VOLTAGE
DETECT
IC104
RESET
68
RESET SIGNAL
GENERATOR
IC105
+3V REGULATOR
IC102
COMPARATOR
IC3 (2/2)
+3V
REGULATOR
IC4
B+ SWITCH
Q10
LED DRIVE
Q101
DC/DC
CONVERTER
Q106, 107, T101
DATA
5
CLK
6
SHIFT CLOCK
Q103, 104
COMPARATOR
VOLTAGE
D8
RV3
TONE
TONE
CONTROL
SWITCH
Q9
AF
AMP
Q11
BUFFER
Q108
MW SWITCH
Q5
L8
SW OSC
L7
SW
ANT
L8
SW
VCO
VOLTAGE
D4 (2/2)
SW SWITCH
Q4
FM SWITCH
Q1
SW
SWITCH
Q3
SW
RF AMP
Q2
SW
9
VT
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