Pioneer deh-p740mp Service Manual page 87

QQ
3 7 63 1515 0
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
TE
L 13942296513
50
*PDH043A
1
CS
NC
VCC
CS
2
SK
SK
DI
DI 3
DO
GND
DO 4
TEST
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I/O Format
I
I
I
I
I
I
I
I/O
O
O
I
100
81
8 VCC
:Not used
:Power supply
:Chip select input
7 NC
:Clock input
:Data input
6 TEST
:Data output
:Ground
5
:Test GND
x ao
y
i
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DEH-P740MP,P7400MP,P7450MP
8
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
Input of sensing Home SW
Input of sensing the flap closed
Connected to AVDD or AVSS via the resistor
Input of sensing existence of WMA decoder & DA I/F IC
Input of sensing existence of external DRAM for CD LSI
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
Input of reset of P-Bus
Input of Eject key
Open
/C Input/output of E2PROM data
C Output for chip selection of E2PROM
C Output of clock of E2PROM
For rewriting Flash EP-ROM (receiving signals)
Format
C
Q Q
3 6 7 1 3
u163
.
2 9 9 4 2 8
Meaning
C MOS
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9
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