Pioneer KEH-P2800 Service Manual - Page 35

Pin FunctionsPE5015A - sd

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KEH-P2800,P3850 - Pin Functions(PE5015A) Pin No. Pin Name I/O 1,2 NC 3 ADPW 4 GND 5,6 NC 7 AVREF1 8 KYDT I 9 DPDT O 10 dsens I 11 TUNPDI I 12 TUNPDO O 13 TUNPCK O 14 TUNPCE O 15,16 NC 17 TX O 18-21 NC 22 swvdd O 23 NC 24 VDT O 25 VCK O 26 VST O 27 SYSPW O 28 mute O 29 DMINH O 30-32 NC 33 GND 34-37 NC 38 FM O 39 AM O 40 ASENBO O 41-49 NC 50 eject I 51 tapld I 52 MECPW O 53 mcmut I 54 NOR/rev I 55-59 NC 60 reset I 61 RX I 62 NC 63 CLKIN I 64 asens I 65 bsens I 66 SD I 67 st I 68 VDD 69 X2 70 X1 71 GND 72 NC 73 TESTIN I 74 AVDD 75 AVREF0 76 SL I 77 MODEL I 78-80 NC Format C C C C C C C C C C C C C C C C Function and Operation Not used A/D converter power GND Not used (Connect to VDD) Key data input Display data output Grille detach sense input PLL IC data input PLL IC data output PLL IC clock output PLL IC chip enable output Not used IP BUS data output Not used Grille power supply control output Not used Data output for electronic volume Clock output for electronic volume Strobe pulse output for electronic volume System power supply control output System mute output Mechanism mute cancel output Not used GND Not used FM power control output AM power control output Slave power supply control output Not used Eject key input Tape loading input Cassette mechanism power output Mechanism mute input Normal reverse input Not used Reset input IP BUS data input Not used Clock input ACC power sense input Back up power sense input SD input FM stereo input Power supply Oscillator output Oscillator input GND Not used Test program mode input A/D converter analog power supply (VDD) (A/D converter standard voltage input) Signal level input Model select input Not used 35

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35
KEH-P2800,P3850
-
Pin Functions(PE5015A)
Pin No.
Pin Name
I/O
Format
Function and Operation
1,2
NC
Not used
3
ADPW
A/D converter power
4
GND
GND
5,6
NC
Not used
7
AVREF1
(Connect to VDD)
8
KYDT
I
Key data input
9
DPDT
O
C
Display data output
10
dsens
I
Grille detach sense input
11
TUNPDI
I
PLL IC data input
12
TUNPDO
O
C
PLL IC data output
13
TUNPCK
O
C
PLL IC clock output
14
TUNPCE
O
C
PLL IC chip enable output
15,16
NC
Not used
17
TX
O
C
IP BUS data output
18–21
NC
Not used
22
swvdd
O
C
Grille power supply control output
23
NC
Not used
24
VDT
O
C
Data output for electronic volume
25
VCK
O
C
Clock output for electronic volume
26
VST
O
C
Strobe pulse output for electronic volume
27
SYSPW
O
C
System power supply control output
28
mute
O
C
System mute output
29
DMINH
O
C
Mechanism mute cancel output
30–32
NC
Not used
33
GND
GND
34–37
NC
Not used
38
FM
O
C
FM power control output
39
AM
O
C
AM power control output
40
ASENBO
O
C
Slave power supply control output
41–49
NC
Not used
50
eject
I
Eject key input
51
tapld
I
Tape loading input
52
MECPW
O
C
Cassette mechanism power output
53
mcmut
I
Mechanism mute input
54
NOR/
rev
I
Normal reverse input
55-59
NC
Not used
60
reset
I
Reset input
61
RX
I
IP BUS data input
62
NC
Not used
63
CLKIN
I
Clock input
64
asens
I
ACC power sense input
65
bsens
I
Back up power sense input
66
SD
I
SD input
67
st
I
FM stereo input
68
VDD
Power supply
69
X2
Oscillator output
70
X1
Oscillator input
71
GND
GND
72
NC
Not used
73
TESTIN
I
Test program mode input
74
AVDD
A/D converter analog power supply (VDD)
75
AVREF0
(A/D converter standard voltage input)
76
SL
I
Signal level input
77
MODEL
I
Model select input
78–80
NC
Not used