Pioneer DEH-P740MP Service Manual page 87

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
*PE5268A
31
50
*PDH043A
1
CS
NC :Not used
:Power supply
VCC
CS :Chip select input
2
SK
SK :Clock input
:Data input
DI
DI 3
:Data output
DO
GND :Ground
4
DO :Test
TEST
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
8
VCC
7
NC
6 TEST
5
GND
DEH-P740MP,P7400MP,P7450MP
Format Meaning
C C MOS
87