Pioneer DEH-P2900MP, Service Manual

Page: 57 / 72

DEH-P3950MP/XU/ES
57
5 6 7 8
5 6
7
8
C
D
F
A
B
E
Pin No. Pin Name I/O Format
Function and Operation
1
2
3-6
7
8
9
10
11
12
13,14
15
16
17
18
19
20
21
22
23
24
25,26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45,46
47
48
49
50
51,52
53
54
55
56
57
58
59
60
61
62
SWVDD
ILMPW
NC
FLMD0
VDD
M_REGC
F_REGC
VSS
reset
NC
SYSPW
CDRESET
BRST
BRXEN
BSRQ
BSI/TSI
BSO
BSCK/TSCK
DPDT/SELFDO
KEYDT/SELFDI
NC
ASENBO
IPPW
IPTX
IPRX
EVSS
EVDD
src
dsens
asens
bsens
NC
BU_SIB
BU_SOB
BU_SCK
BU_A0
BU_STB
BU_HSFLG
MUTE
BU_MODE1,0
PWROFF
RESETOUT
BU_REGC
BU_VDD
BU_X2,1
BU_VSS
PLL_GND
PLL_VDD
bu_reset
DVDD3
DGND2
L_OUT
R_OUT
COMP
SL
O
O
I
I
O
O
O
I/O
I
I
O
I/O
O
I
O
O
O
I
I
I
I
I
I
O
I/O
O
O
I
O
I
O
O
I
I
I
I
I
I
C
C
C
C
C
C
C
C
C
C
N
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
Power supply output for display microcomputer
Illumination power output
Not used
Self-rewriting applied voltage input 0(self mode : H)
VDD
Regulator output capacitance stabilizing connection of masked ROM built-in item
Regulator output capacitance stabilizing connection of flash memory built-in item
GND
System reset input
Not used
System power output
CD mechanism RESET output
P-BUS : Reset output
P-BUS : Reception enable input/output
P-BUS : Service request input
P-BUS : Serial data input/Test data input
P-BUS : Serial data output
P-BUS : Serial clock output/Test data clock synchronizer output
Data output for display microcomputer/Data output for self-writing
Key data input from display microcomputer/Data input for self-writing
Not used
Slave ACC sense output
IPBUS : Driver power supply control output
IPBUS : Data output
IPBUS : Data input
GHC for external
VDD for external
Source key
Detach sense input
ACC sense input
Backup sense input
Not used
Data reception from backup circuit
Data sending to backup circuit
Communication clock with microcomputer for backup circuit
Backup circuit register control
Backup circuit register control
Clock timer signal polling from backup circuit
System mute output
VSS fixed(mode specification terminal for backup circuit test)
External power-off control
Reset signal output for microcomputer
Regulator output capacitance stabilizing connection for backup circuit(1.5 V)
Power supply for backup circuit(3.3 V)
Input of oscillator circuit for clock timer(4.718 59 MHz)
GND for backup circuit
Terminal for TUNER only
Terminal for TUNER only
Backup circuit reset input
Terminal for TUNER only
Terminal for TUNER only
Terminal for TUNER only
Terminal for TUNER only
Terminal for TUNER only
Terminal for TUNER only
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Pin Functions (PN5011A)