Pioneer DEH-P946, Service Manual

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114
DEX-P1R,DEH-P946,DEX-P1
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Pin Functions (AK7712AVT)
Pin No. Pin Name I/O Function and Operation
1 TSTI1 I Test input 1
2 OPCL I ADC,DAC connection select
3
pdad
I AD reset control
4
pdda
I DA reset control
5
pd
I Power down
6
rst
I Reset input
7 TSTIO1 I/O Test input/output 1
8 TSTIO2 I/O Test input/output 2
9 TSTIO3 I/O Test input/output 3
10,11 DVB Digital PCB power supply
12 SDIN2 I Serial data input 2
13 SDAD O Serial data output 2
14 SDOUT2 O Serial data output 3
15 SDDA I Serial data input 3
16 SDDA2 I Serial data input 4
17 SDOUT3 O Serial data output 4
18 SDOUT1 O Serial data output 1
19 SDIN1 I Serial data input 1
20 SMODE I Interface clock select
21 BCLK I/O Clock input/output for serial data input signal input/output
22 LRCK I/O L/R channel identification signal input/output
23 CLK0 O Master clock output
24 DVDD Digital power supply
25 DVSS Digital GND
26 XTI I Clock input
27 XTO O Oscillator output
28 TSTI2 I CLKO output control
29
cs
I Chip select input for micro-computer interface
30
wrq
I Command register reset input for micro-computer interface
31 DVSS Digital GND
32 DVDD Digital power supply
33 SCLK I Serial data input clock input for micro-computer interface
34 SI I Serial data input for micro-computer interface
35 WRDY O Data write ready output for micro-computer interface
36 DRDY O Output data ready output for micro-computer interface
37 SO O Serial data output for micro-computer interface
38
casrf
O External DRAM CAS/pseudo SRAM refresh
39
rasce
O External DRAM RAS/pseudo SRAM-ce
40
we
O External SRAM/pseudo SRAM/DRAM write signal output
41-48 A16-A9 O External RAM address output
49 DVSS Digital GND
50 DVDD Digital power supply
51-59 A8-A0 O External RAM address output
60
oe
O External SRAM/pseudo SRAM/DRAM output enable signal output
61-68 IO0-IO7 I/O External RAM data input/output
69 DVSS Digital GND
70 DVDD Digital power supply
71 DZFSET I Zero position detect setup
72 DVSS Digital GND
73 DVDD Digital power supply
74,75 DVB Digital PCB power supply
76 DZF2 O Zero input detect (DAC2)
77 DZF1 O Zero input detect (DAC1)
78 NC Not used
79 AVB Analog PCB power supply
80 AOUTR2 O DAC2 Rch analog output 2
81 AOUTL2 O DAC2 Lch analog output 2
82 NC Not used