Keyboard Unit - Pioneer DEH-P3950MP Service Manual

5
SL-IN 62
SL
IFA 77
IF_INA
IFB 78
IF_INB
REFA 96
FREFA
REFB
97
FREFB
LDET 99
LOCK
DI 100
TUNDO
CK 101
TUNCK
CE1 102
CE
DO 103
TUNDI
CE2 109
CE2
SLOUT 136
SL
59
L_OUT
ELECTRONIC VOLUME/
SOURCE SELECTOR
TUNL
2 6
IN2_L Front_L
12
Pre/SW_L
BUSL-
5
IN4−_L
7
Rear_L
BUSL+
4
IC 151
IN4+_L
PML015B
CDL
1
IN1_L
AUX-L
3
IN3_L
SYSPW
27
ASENBO
29
IPTX SYSTEM MICRO
30
COMPUTER
IPRX
IC 601(2/2)
28
IPPW
PN5011A
44
MUTE
82
XOUT
X601
74.1MHz
47
81
PWROFF
XIN
36
/BSENS
15
SYSPW
52
B.UP
BU-X1
X602
51
BU-X2
1
SWVDD
34
DSENS
16
CDRST
B.UP
2
ILMPW
126
VDCONT
33
/SRC
111
SWVDD3V ROT1
110
ROT0
85
DREG
9
M-REGC
23
DPDT
55
PLL_VDD
57 24
DVDD3 KYDT
94
DVDD2
121
DVDD4
5
6
SYSTEM MICRO
COMPUTER
IC 601(1/2)
PN5011A
35
ASENS
/ASENS
3 AUXL
IC 751
1
2.6 AUXG
NJM4558MD
MUTE
Q201(1/2)
MUTE
Q201(2/2)
CN831 CN1801
AUXG AUXG
6 6
AUXL AUXL
7 7
DSENSE DSENS
14
14
ILMPW
Q821
ILM+B ILL+B
B.UP 9 9
Q822
SW5V
SW5V
3 3 SWVDD
SOURCE SRC
4
4
ROT1 ROT1
10 10
ROT0 ROT0
11
11
DPDT DPDT
13 13
KYDT KYDT
12 12
6
7
ACC SENSE
Q931
14
FLIn FL−
AMP
IC 301 FL+
PAL007C
RL−
12
RL+
RLIn
22
MUTE B.REM
VCC
4
STBY
VCC
AUX IN
1 2
CN1802
D1803-D1810
D1812-D1821
D1823-D1825
S1827
4
REM.CON.
1
3
SWVDD
GP1UX51RK
2
VOLUME
PUSH:SOURCE
18
20
10
56
DEH-P3950MP/XU/ES
7
CN351(1/2)
SWL
2
Q351
CN351(2/2)
FL 2
Q352
CN901
1 1
B.UP
ACC
3 3
2 2
23 FL−
10 10
21 FL+
12 12
3
RL−
9
9
5 RL+
11 11
25 BREM
6 6
6
B.UP
20
B

KEYBOARD UNIT

KEY MATRIX
S1801 S1802 S1805
S1804 S1803 S1806
DISP SW
CLK
EJECT SCRL BASS 3
S1810 S1811
S1807 S1808
S1809 S1814 S1816
2 1 4 UP LEFT
S1815 S1817
S1812 S1813
S1820 S1821 S1818
6 5 DOWN RIGHT EQ
S1822
S1823
S1819
BAND
FUNC ESC AUDIO
IC1802 1
17
KEY DATA
REM 22
XO
X1801
5MHz
23
DPDT
XI
LCD DRIVER/
KEY CONTROLLER
KYDT
IC 1801
VLCD
PD6340A
VDD
8
A
B
BACK UP
ACC
GND
C
FL−
FL+
RL−
RL+
B.REM
D
E
F
LCD1801
15
8