JVC UX-A52 Service Manual page 32

UX-A52
3. Pin function (2/2)
Pin No. Symbol
51 AVREF
52 AVREF0
53 SEFTY2
54 SEFTY3
55 LDCK
56 FKEY1
57 VERSION
58 FKEY2
59 KEY1
60 SEFTY1
61 VSS
62 RCDL
63 BCDL
64 AVREF1
65 RXD
66 TXD
67 NC
68 CDRXD
69 CDTXD
70 CDRST
71 GCDL
72 NC
73 TUDATA 1
74 TUDATA
75 TUCK
76 NC
77 NC
78 NC
79 NC
80 NC
81 NC
82 NC
83 NC
84 NC
85 NC
86 NC
87 NC
88 SCL
89 CS
90 RESET
91 SDA
92 NC
93 RS
94 NC
95 NC
96 SDATA
97 SCK
98 STTA
99 PLAY
100 VSS
1-32
I/O
Reference power supply +5 V
I
Reference power supply +5 V
I
Current detection
I
Current detection
I
I/O
Function switch key input
I
Destination switch input
I
Function switch key input
I
Cassette key input
I
Current detection
I
GND
I
LED color display control
O
LED color display control
O
Reference power supply +5 V
I
Digital input
I
Digital output
O
Not connected
-
CD digital input
I
CD digital output
O
CD reset
O
LED color display control
O
Not connected
-
Tuner data
I
Tuner data
O
Tuner clock
O
Not connected
-
Not connected
-
Not connected
-
Not connected
-
Not connected
-
Not connected
-
Not connected
-
Not connected
-
Not connected
-
Not connected
-
Not connected
-
Not connected
-
LCD clock
O
LCD power supply
O
LCD reset
O
LCD serial data
I/O
Not connected
-
LCD start
I
Not connected
-
Not connected
-
Cassette control serial data
I/O
Cassette control serial clock
I/O
Cassette control status signal
I/O
Cassette PB switch detection
O
I
GND
Description
UPD784216AGF(2/2)