Sony ICF-SW77 Service Manual page 29

Pin No. Port Name I/O Signal Name
Description
41 NC - NC
NOT CONNECTED
42 P17
0
WR
WRITE TO LCD802-2 CONTROL DRIVER IC804
43 P16
0
RD
READ TO LCD802-2 CONTROL DRIVER IC804
44
P15
0
RS RESISTOR SELECT TO LCD802-2 CONTROL DRIVER IC804
45 P14 0
BCS CHIP SELECT TO IC101
46 P13 0
LAT2 LATCH SIGNAL FOR PLL OUTPUT
47
P12
0
LAT1 LACTH SIGNAL FOR BAND OUTPUT
48 Pll 0
DTA DATA SIGNAL FOR BAND, PLL OUTPUT
49
P10
0 CLK
CLOCK SIGNAL FOR BAND, PLL OUTPUT
50 P07
o
P07
DATA 7 OUTPUT TO IC804
51 P06
0
P06
DATA 6 OUTPUT TO IC804
52 P05
0
P05
DATA 5 OUTPUT TO IC804
53 P04
0
P04
DATA 4 OUTPUT TO IC804
54 P03 0 P03
DATA 3 OUTPUT TO IC804
55 P02 0 P02
DATA 2 OUTPUT TO IC804
56 P01 0 P01
DATA 1 OUTPUT TO IC804
57 POO 0 POO
DATA 0 OUTPUT TO IC804
58 P47
I
P47
CONNECTED TO GROUND
59 P46
I P46 CONNECTED TO GROUND
60 P45
I
P45
CONNECTED TO GROUND
61 P44
I P44 j CONNECTED TO GROUND
62 P43
I P43 CONNECTED TO GROUND
63
P42 I P42 CONNECTED TO GROUND
64 P41
1
P41
i_
CONNECTED TO GROUND
65
P40 I SMETER
;-
S METER SIGNAL INPUT. A/D CONVERSION IS PERFORMED
66
DA2
0
DA 2 NOT CONNECTED
67
DAI
0
DAI NOT CONNECTED
68
DAVREF I DAVREF
CONNECTED TO GROUND
69 ADVREF I ADVREF POWER SUPPLY INPUT (+5 V)
70
AVSS - AVSS CONNECTED TO GROUND
71 AVCC - AVCC POWER SUPPLY INPUT (+5 V)
72
vcc
- vcc
POWER SUPPLY INPUT (+5 V)
73
vss
-
VSS CONNECTED TO GROUND
74 SRDY 0
SRDY SERISL READY SIGNAL OUTPUT
75 SCLK
I
SCK
SERIAL CLOCK DATA INPUT
76
SO
0
SSO
SERIAL DATA SIGNAL OUTPUT
77
SI I SSI
SERIAL DATA SIGNAL INPUT
78
P33
0
SREQ
CONNECTED TO GROUND
79
P32 I CONNECTED TO GROUND
80
NC - NC NOT CONNECTED
-
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