Pioneer MEH-P5000, Service Manual

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117
MEH-P5000R
—
,P5000,P5050
Pin No. Pin Name I/O Function and Operation
69–72 NC Not used
73 TEST I Test terminal
74 SL I Signal level input from tuner
75 MODEL I Model select input
76 CL I Synchronizing signal input of display data latch
77 NL I RDS noise level input
78–81 NC Not used
82 AVDD A/D converter power supply
83 AVREF1 A/D converter reference voltage
84 GND A/D converter GND
85 RX I IP BUS data input
86 TX O IP BUS data output
87 GND GND
88
ldet
I RDS PLL lock sense input
89
rck
I RDS demodulation clock input
90 RDS57K I RDS 57kHzBP-OUT sense input
91 GND GND
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 Key data input
96 DPDT O Display data output
97 TUNPCK O Serial clock output for PLL IC
98 TUNPDO O Data output for PLL IC
99 TUNPCE O Chip enable output for PLL IC
100 PEE O Beep tone output
30
31
50
51 80
81
100
1
*PD4960B
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.