Pioneer DEH-P44, Service Manual

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DEH-P440/XN/UC
A
B
C
D
5 6 7 8
5 6
7
8
55
*PE5246A
Pin No. Pin Name I/O Function and Operation
74 SL I TUNER:Signal level input
75 NC Not used
76 MODELIN I Model select input
77 CSENS I Flap close sense input
78 EJTSNS I CD:Eject sense input
79 DSCSNS I CD:Disc insert sense input
80 VDSENS I CD:VD voltage sense input
81 TEMP I CD:Temperature sense input
82 AVDD A/D converter power supply terminal
83 AVREF A/D converter reference voltage terminal
84 AVSS GND
85 RX I IP-BUS:data input
86 TX O IP-BUS:data output
87 NMI GND
88
ldet
I PLL lock sense input
89-91 NC Not used
92
asens
I ACC power sense input
93
bsens
I Back up power sense input
94 TUNPDI I PLL IC data input
95 KYDT I Grille data input
96 DPDT O Grille data output
97 PCK O PLL IC clock output
98 PDO O PLL IC data output
99 PCE O PLL IC chip enable output
100 PEE O Beep tone output
30
31
50
51 80
81
100
1
IC's marked by * are MOS type.
Be careful in handling them because they are very liable
to be damaged by electrostatic induction.