Pioneer CDX-P2050VC/X1N/UC Service Manual page 64

Voice control multi-cd player
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CDX-P2050VC,P2050VN,P2050VS
Pin No.
Pin Name
62
VCC
63
A7
64
VSS
65–68
A6-A3
69
A10
70
A2 and (EPSK) O
71
A1 and (EPDI)
72
A0 and (EPDO) O
73
NC
74
ejsw
75
mag
77
NC
78
I13
79
I2
80
I4
81–88
D0-D7
89,90
NC
91
DSP
92
disk
93
ELVPVO
94
ELVREF
95
TRP
96
AVSS
97
VDIN
98
VREF
99
AVCC
100
EPCS
*PD5512B
31
21
50
40
64
I/O
Format
Function and Operation
VDD
O
C
SRAM address bus output
GND
O
C
SRAM address bus output
O
C
SRAM address bus output
C
SRAM address bus output and (E2PROM clock output)
O/I
C
SRAM address bus output and (E2PROM data input)
C
SRAM address bus output and (E2PROM data output)
Not used
I
Eject key switch interrupt input
I
Magazine lock switch interrupt input
Not used
O
C
Motor driver control output
O
C
Motor driver control output
O
C
Motor driver control output
I/O
C
SRAM data bus
Not used
I
DISC detect timing input
I
Disc detector input
I
Voltage input from ELV position sense
I
ELV reference voltage input
I
Tray position input
I
A/D GND
Power supply short sensor input
I
A/D converter reference voltage input
A/D VCC
I/O
C
E2PROM detect input , Chip select output
100
80
81
61
TC7SH32FU
Format
C
NM
1 IN B
2 IN A
3 GND
Meaning
C MOS
Middle resistivity
N channel open drain
5 VCC
4 OUT Y

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