Pioneer MEH-P5000, Service Manual

Page: 118 / 141

118
MEH-P5000R
—
,P5000,P5050
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Pin Functions (PD4959A)
Pin No. Pin Name I/O Function and Operation
1 SWVDD O Keyboard unit power supply control output
2
dsens
I Grille detach sense input
3 NC Not used
4
isens
I Illumination power supply sence input
5 TESTIN I Test program mode input
6-10 NC Not used
11
reset
I Reset input
12 XT2 Not used
13 XT1 Not used
14 VSS GND
15 X2 Crystal oscillator connection pin
16 X1 Crystal oscillator connection pin
17 REGOFF Not used
18 REGC Not used
19 VDD Power supply
20 ILMPW O Illumination power supply control output
21 SYSPWR O System power control output
22
adpw
O A/D converter power supply control output
23 LCDPW O LCD back light power supply control output
24 IPPW O Power supply control output for IP BUS interface IC
25 ASENBO O Slave power supply control output
26 AMPW O AM power supply control output
27 TELIN I Telephone mute input
28
mute
O System mute output
29 DIM O Dimmer select output
30 FMPW O FM power supply control output
31,32 NC Not used
33 VCK O Clock output for electronic volume
34 VST O Strobe pulse output for electronic volume
35 VDT O Data output for electronic volume
36 NC Not used
37 DRELAY O External relay output
38 SD I Station detector input
39
st
I FM stereo input
40 VSS GND
41 VDD Power supply
42 NC Not used
43 NC Not used
44-46 NC Not used
47 NC Not used
48 DRSENS I Door open/close sense input
49 DRSYS O Door system select output
50 DLED O Alarm LED output
51 DALMON O DFS alarm output
52–61 NC Not used
62 PCL O Clock adjustment output
63
brxen
I/O P-BUS reception enable input/output
64
bsrq
I P-BUS service request output pin
65 BSCK I/O P-BUS serial clock input/output
66 BSI I P–BUS serial data input
67 BSO O P–BUS serial data output
68
brst
I P–BUS reset input
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