Pioneer DEH-4280SD Service Manual page 10

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5
SYSTEM MICRO
COMPUTER
IC601
PEG640A8
95
55
SL
VST
63
54
TUNPCE2
VCK
64
53
TUNPCE1
VDT
65
TUNPCK
67
TUNPDO
66
TUNPDI
48
MUTE
10
BUP
RESET
45
DALMON
92
KEYAD
32
KEYD
BUP
50
OELPW
24
SYNC
46
SYSPW
16
BSENS
18
36
ASENS
USBCTL
23
USBFLG
40
TELIN
80
SDCTL
21
MEDRST
BUP
19
VDCONT
49
ILMPW
Q822
34
MED_RX
33
MED_TX
43
MEDMUTE
41
MEDSTBY
VDD3.3
47
SWVDD
Q842
90
SOURCE
SSENS
17
DSENS
DSENS
2
ROT0
1
ROT1
30
KYDT
29
DPDT
DAC
IC181
WM8761GED
9
VOUTL
1
LRCIN
2
DAC5V REG.
DIN
IC182
3
BCKIN
NJM2872F05
12
DEEMPH
VIN
8
5
14
MCLK
VDD
VOUT
CONT
iPod CP
IC591
341S2162
13
I2C_SDA/SPI_SOMI
12
I2C_SCL/SPI_SIMO
4
nRESET
Q591
5
MED3.3V
VCC
2
MODE1/SPI_nSS
5
6
TUNL
AUXL
CDL
VDD5V REG.
Q901
BUP
VDD5
Q902
OEL+B
Q831
OEL+B
Q832
SYS8V
ILM+B
Q821
SWVDD
Q841
CN801
ILM+B
SW3.3V
AUXL
SOURCE
CDL
DSENS
1
SYS8V
3
ROT0
ROT1
KYDT
DPDT
OEL+B
VBUS
USB5V
D+
D-
6
E.VOL
IC201
PM9012A
36
25
FL
S4B-L
OUTFL
39
26
RL
S1Q+L
OUTRL
35
27
SWL
OUTPL
S5B+L
21
STB
22
CLK
23
DATA
Q381
Q361
SYS8V REG.
IC911
NJM2388F84
2
1
VOUT
VIN
BUP
Q363
4
CONTROL
VDD5
TELMUTE
Q951
C
MED1.2V REG.
IC583
BH12PB3WHFV
4
3
MED1.2V
VOUT
VIN
1
STBY
B
KEYBOARD UNIT
CN1801
ILLUMI
ILM+B
16
16
3
3
SW3.3V
AUXL
19
19
17
KEY MATRIX
15
S1801
SOURCE
4
4
DSEN
20
20
ROTARY COMMANDER
S1811
ROT0
Phase_B
18
14
14
ROT1
Phase_A
12
12
KYDT
13
6
6
DPDT
12
10
10
OEL+B
8
8
VBUS(US5V)
11
11
D+
15
15
D-
13
13
DEH-4250SD/XNES
7
FL
Q301
SWL
Q303
Q382
BUP
AMP
IC351
PA2030A
FL
11
9
IN1
OUT1(+)
RL
12
7
IN2
OUT1(-)
5
OUT2(+)
3
OUT2(-)
22
MUTE
25
H-SW/VDS-DET
4
STBY
BUP
BSENS
Q921
ASENS
MED3.3V REG.
IC581
S-1172B33-E6
MED3.3V
1
6
VOUT
VIN
3
ON/OFF
ADKEY1
ADKEY2
REMOTE
CONTROL SENSOR
IC1891
10
1
3
REM
GP1UXC14RK
MICRO
COMPUTER
IC1901
PEG642A8
14
ADKEY0
MCLK
19
R-ILM
XREST 11
20
XCMD
DCLK 1
2
KYDT
DOUT
DPDT
SW3.3V
7
8
A
JA301
FL
6
SWL
5
B
JA981
FL1
1
FL2
3
RL1
5
RL2
7
BRE1
14
B.UP
15
C
17
FUSE
10 A
18
ACC1
13
TEL1
9
DD5V
D
JA1801
AUXR
3
AUXL
2
AUXG
1
SW3.3V
E
CN1921
XI
10
XCS
7
XRES
6
XCMD
5
SCL
4
SI_RX
3
VDD
8
VAH
12
VKH
13
CN1802
US5V
2
D+
F
4
D-
3
21
8

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