Sony ICF-SW7600GR Service Manual - Page 16

Ic Pin Function Description, Ic Block Diagrams - power supply

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IN2 NC NC NF2 GND2 P-GND2 OUT RIPPLE IN1 REG VOL NF1 GND1 P-GND1 OUT1 VCC R L M/ST STLED GND NC IN NC NC ICF-SW7600GR • IC BLOCK DIAGRAMS IC201 CXA1376AS IC202 LA3335M 10 9 DECODER 8 SYNC DET 7 6 LAMP TRIGGER STEREO SWITCH FF 90º FF 1/2 FF 0º PHASE COMPALATE V.C.O VCO STOP 1 2 3 4 5 IN FILTER VCC VCO NC IC203 CXA1522P 16 15 14 13 12 11 10 9 REG VOL PRE+POWER 1 PRE+POWER 2 1 2 3 4 5 6 7 8 GND OUT NC C IC204 LA5003M 87 65 TRIGGER CIRCUIT REFERENCE REGULATOR ERROR AMP 12 3 4 4-8. IC PIN FUNCTION DESCRIPTION • IC302 µPD17073GB-564-1A7 (DIGITAL TUNING SYSTEM CONTROL) 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 - 34 35 - 49 50 51 52 53 54 55 56 Pin Name LIGHT MUTING KS6 KS5 KS4 KS3 KS2 KS1 KS0 KR3 KR2 KR1 KR0 HOLD POWER AM/FM BAR/ROD GND EO VCOL VCOH REG PLL VDD XOUT XIN REG OSC REG LCD0 CAP LCD0 CAP LCD1 REG LCD1 COM0 - 3 LCD0 - 14 CE VDET BEEP SD METER SCK SI/SO I/O Description O Light control signal output O Muting signal output O Key source signal output O Key source signal output O Key source signal output O Key source signal output O Key source signal output O Key source signal output O Key source signal output I Key return signal input I Key return signal input I Key return signal input I Key return signal input I Key input protect switch signal input O Radio power control signal output O AM/FM select signal output O Bar/Rod antenna select signal output - Ground O Error signal output I AM VCO (local oscillation) frequency input I FM VCO (local oscillation) frequency input O Output of PLL voltage regulator - Power supply (+3V) O Pin for connecting crystal resonator for system clock I Pin for connecting crystal resonator for system clock O Output of voltage regulator for oscillation circuit O LCD drive voltage output - Pin for capacitor connection for LCD drive voltage - Pin for capacitor connection for LCD drive voltage O LCD drive voltage output O LCD common signal output O LCD segment signal output I Chip select enable input I Low voltage detect signal input O BEEP signal output I Signal detector signal input I Reception level signal input O Serial clock output for EEPROM I/O Serial data input or output for EEPROM 16 16

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16
16
ICF-SW7600GR
•
IC BLOCK DIAGRAMS
IC201
CXA1376AS
IC202
LA3335M
IC203
CXA1522P
IC204
LA5003M
VOL
REG
IN2
NC
NC
NF2
GND2
P-GND2
OUT
RIPPLE
IN1
REG
VOL
NF1
GND1
P-GND1
OUT1
VCC
PRE+POWER 1
PRE+POWER 2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
FF
0º
1
2
3
4
5
6
7
8
9
10
FF 1/2
FF
90º
V.C.O
VCO STOP
SYNC
DET
STEREO
SWITCH
PHASE
COMPALATE
LAMP
TRIGGER
DECODER
IN
FILTER
VCC
VCO
NC
GND
STLED
M/ST
L
R
1
2
3
4
5
6
7
8
ERROR
AMP
GND
OUT
NC
C
NC
IN
NC
NC
REFERENCE
REGULATOR
TRIGGER
CIRCUIT
4-8. IC PIN FUNCTION DESCRIPTION
•
IC302
µ
PD17073GB-564-1A7
(DIGITAL TUNING SYSTEM CONTROL)
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 - 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
I
O
O
O
–
O
I
I
O
–
O
I
O
O
–
–
O
O
O
I
I
O
I
I
O
I/O
Pin Name
LIGHT
MUTING
KS6
KS5
KS4
KS3
KS2
KS1
KS0
KR3
KR2
KR1
KR0
HOLD
POWER
AM/FM
BAR/ROD
GND
EO
VCOL
VCOH
REG PLL
VDD
XOUT
XIN
REG OSC
REG LCD0
CAP LCD0
CAP LCD1
REG LCD1
COM0 - 3
LCD0 - 14
CE
VDET
BEEP
SD
METER
SCK
SI/SO
Description
Light control signal output
Muting signal output
Key source signal output
Key source signal output
Key source signal output
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
Key input protect switch signal input
Radio power control signal output
AM/FM select signal output
Bar/Rod antenna select signal output
Ground
Error signal output
AM VCO (local oscillation) frequency input
FM VCO (local oscillation) frequency input
Output of PLL voltage regulator
Power supply (+3V)
Pin for connecting crystal resonator for system clock
Pin for connecting crystal resonator for system clock
Output of voltage regulator for oscillation circuit
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 segment signal output
Chip select enable input
Low voltage detect signal input
BEEP signal output
Signal detector signal input
Reception level signal input
Serial clock output for EEPROM
Serial data input or output for EEPROM