Pioneer DEH-P443R, Service Manual

Page: 78 / 98

78
DEH-P645R,P545R,P544R,P443R
30
31
50
51 80
81
100
1
*PD4885A
Pin No. Pin Name I/O Function and Operation
84 GND GND
85 RX I IP BUS data input
86 TX O IP BUS data output
87 GND GND
88
ldet
I PLL lock sense input
89
rck
I RDS clock input
90 RDS57K I 57kHzBP-OUT sense input
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 KEYDT I Display data input
96 DPDT O Display data output
97 TUNPCK O PLL IC clock output
98 TUNPDO O PLL IC data output
99 TUNPCE O PLL IC chip enable output
100 PEE O Beep tone output
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Pin Functions (PD6197A)
Pin No. Pin Name I/O Function and Operation
1 VSS GND
2 X1 Crystal oscillator connection pin
3 X0 Crystal oscillator connection pin
4 NC Not used
5,6 MOD1,0 I Connect to GND
7 NC Not used
8 KYDT O Display/key data output
9 DPDT I Display/key data input
10 REMIN I Remote control pulse input
11,12 NC Not used
13-16
kd4-kd1
I Key data input
17-21
ks6-ks2
O Key strobe output
22 NC Not used
23 VDD VDD
24-73 SEG0-49 O LCD segment output
74-77 COM3-0 O LCD common output
78 VLCD I LCD voltage input
79,80 V2,V1 Power supply terminal
*PD6197A
20
21
40
41 60
61
80
1