Pioneer CDX-P2050VC Service Manual page 64

CDX-P2050VC,P2050VN,P2050VS
QQ
3 7 63 1515 0
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
TE
L 13942296513
100 EPCS
*PD5512B
31
21
50
40
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I/O Format
O C
O C
O C
C
O/I C
C
I
I
O C
O C
O C
I/O C
I
I
I
I
I
I
I
I/O C
100
80
81
61
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2 9
8
Function and Operation
VDD
SRAM address bus output
GND
SRAM address bus output
SRAM address bus output
SRAM address bus output and (E2PROM clock output)
SRAM address bus output and (E2PROM data input)
SRAM address bus output and (E2PROM data output)
Not used
Eject key switch interrupt input
Magazine lock switch interrupt input
Not used
Motor driver control output
Motor driver control output
Motor driver control output
SRAM data bus
Not used
DISC detect timing input
Disc detector input
Voltage input from ELV position sense
ELV reference voltage input
Tray position input
A/D GND
Power supply short sensor input
A/D converter reference voltage input
A/D VCC
Q Q
3 6 7 1 3
E2PROM detect input , Chip select output
Format
C
NM
TC7SH32FU
1 IN B
2 IN A
3 GND
.
9 4 2 8
1 5 0 5 8 2 9 9 4
Meaning
C MOS
Middle resistivity
N channel open drain
5 VCC
m
co
4 OUT Y
9 9
2 8 9 9