Pioneer DEH-P840MP Service Manual page 87

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Pin No.
Pin Name
76
AVREF
77
VDSENS
78
DSCSNS
79
TEMP
80
HOME
csens
81
82-85
NC
86
WMAARI
87
DRAMARI
testin
88
89
NC
xint
90
wint
91
brst
92
ejsw
93
94-96
NC
97
ROMDATA
98
ROMCS
99
ROMCK
100
FRXD
*PE5269A
31
50
I/O
Format
Function and Operation
Input of reference voltage for A/D converter
Input of sensing short of VD power supply
Input of sensing disc status
Input of sensing information on temperature
I
Input of sensing Home SW
I
Input of sensing the flap closed
Connected to AVDD or AVSS via the resistor
I
Input of sensing existence of WMA decoder & DA I/F IC
I
Input of sensing existence of external DRAM for CD LSI
I
Input with starting test program for checking chips
Connected to EVDD or EVSS via the resistor
Input of interruption signals of CD LSI
Input of interruption signals of WMA decoder
I
Input of reset of P-Bus
I
Input of Eject key
Open
I/O
/C
Input/output of E2PROM data
O
C
Output for chip selection of E2PROM
O
C
Output of clock of E2PROM
I
For rewriting Flash EP-ROM (receiving signals)
100
81
DEH-P840MP,P8400MP,P8450MP
Format
Meaning
C
C MOS
87

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