Read Sony ICF-M410L Service Manual online
10
10
ICF-M410L
4-4.
IC PIN FUNCTION DESCRIPTION
• IC101 uPD17072GB-565-1A7(DIGITAL TUNING SYSTEM CONTROL)
4-5.
IC BLOCK DIAGRAM
IC1 CXA1019S
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35-49
50
51
52
53
54
55
56
I/O
O
O
O
O
O
O
O
O
O
I
I
I
I
—
—
—
—
—
O
I
I
O
—
O
I
O
O
—
—
O
O
O
O
O
O
I
I
O
I
—
I
—
Description
For pull-up of INITIAL, L:CE = at L
Radio power control signal output.
Muting signal output.
“Band select signal output. L:MW, H:LW/SW”
“Band select signal output. L:FM/TV, H:AM”
Key source signal output.
Key source signal output.
Key source signal output.
Key source signal output.
Key return signal input.
Key return signal input.
Key return signal input.
Key return signal input.
Not used.
Not used.
Not used.
Not used.
Ground.
Error signal output.
AM VCO (local oscillation) frequency input.
FM VCO (local oscillation) frequency input.
Regulater for PLL output.
Power supply (+3V).
Pin for connecting crystal resonator for system clock.
Pin for connecting crystal resonator for system clock.
Regulater for PLL output.
LCD drive voltage output.
Pin for capacitor connection for LCD drive voltage.
Pin for capacitor connection for LCD drive voltage.
LCD drive voltage output.
LCD common signal output.
LCD common signal output.
LCD common signal output.
LCD common signal output.
LCD segment signal output.
Chip select emable input.
Hold input. L:ON
BEEP signal output.
Low voltage detect signal input.
Not used.
Connected to L.
Not used.
Pin Name
VOUT
POWER
MUTING
BAND(MW/SW)
BAND(FM/AM)
KEY SCAN0
KEY SCAN1
KEY SCAN2
KEY SCAN3
KEY RET0
KEY RET1
KEY RET2
KEY RET3
NC
NC
NC
NC
GND
EO
VCOL
VCOH
REG 0
VDD
X OUT
X IN
REG 1
REG LCD0
CAP LCD0
CAP LCD1
REG LCD1
COM 0
COM 1
COM 2
COM 3
LCD 0 - 14
CE
INT
BEEP
BAT LOW
NC
INITIAL
NC
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
FE GND
N.C
AM RF IN
FM RF
REG OUT
FM OSC
FM RF IN
AFC
AM OSC
VOL
NF
FM DISCRI
GND
GND
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