Keyboard Unit - Pioneer DEH-P4950MP/XU/CN5 Service Manual

5
1
S-80835CNMC-B8U
12
TUNPDO 68
TPDI
TUNPDI
86
TPDO
TUNPCK
67
TPCK
CE1 66
TUNPCE1
CE2 65
TUNPCE2
SL
97 SL
SYSTEM CONTROLLER
ELECTRONIC VOLUME/
SOURCE SELECTOR
6
TUNL
2
Front_L
IN2−_L
12
Pre/SW_L
7
BUSL-
5
Rear_L
IN4−_L
BUSL+ 4
IC 151
IN4+_L
PML015B
AUX-L 3
IN3_L
1
CDL
IN1_L
40
ASENBO
53
MUTE
30
TX
29
RX
27
RX2
48
SYSPW
52
IPPW
SYSTEM CONTROLLER
IC 601(2/2)
PEG286A
13
Xout
X601
15
Xin
Q852
7
SWVDD
18
/DSENS
21
CDRST
B.UP
Q842
1
ILMPW
92
B.UP
SSENS
3
ROT1
4
ROT0
22
NC
35
DPDT
36
KYDT
5
6
RESET
IC 961 2
VDD5
IC 601(1/2)
47
DALMON
PEG286A
19
/BSENS
20
/ASENS
MUTE
Q453
B.UP
Q451
CN803 CN1801
AGND
AUXGND 10 10
A 12 12
AUXL
AUXL
13 13
Q851
SWVDD
VDD5 3
3 SWVDD
DSENS
DSENS
14 14
Q841
ILMB+
ILM
9 9
SSENS SSENSE
4
4
ROT1 ROT1
7 7
ROT0 ROT0
8
8
DPDT DPDT
5 5
KYDT KYDT
6 6
6
VDD5V REGULATOR
Q911
VDD5
Q912
BACKUP SENSE
/BSENS
Q931
/ASENS
ACC SENSE
AMP
20
VCC VCC
14
FLIN
IC 301
PAL007C
12
RLIN
22
MUTE
STBY
4
VCC8
TUN 3V REGULATOR SYS 8V REGULATOR
IC 401
3 1 2
VDD_3.3V
NJM2388F84
NJM2885DL1-33
AUX IN
1 2
CN1802
D1803,
D1805-D1815
D1818-D1824
SWVDD
S1827
4
1
3
2
VOLUME
PUSH:SOURCE
DEH-P4950MP/XU/CN5
7
CN351
SWL 4
Q351
RCRL
2
Q352
RCFL
6
Q353
CN901
B.UP
B.UP
1 1
ACC
3 3
2 2
B.UP
6
23 FL−
FL− 10 10
21 FL+
FL+ 12
12
3
RL−
RL−
9 9
5 RL+
RL+
11 11
25 BREM
B.REM 6 6
IC 921
1
B.UP
4
SYSPW
B

KEYBOARD UNIT

KEY MATRIX
S1801 S1802 S1804 S1805
FUNC BAND
1 4
S1811
S1807 S1809 S1810
S1812
5
AUDIO 6 DOWN
S1817 S1819
S1815 S1818 S1820 S1821
EQ RIGHT LEFT DISP
S1828
S1825 S1829
SW CLOCK 3
REM.CON.
IC1802 1
GP1UX51RK
57
KEY DATA
REM 54
X0
50
55
SI
X1
LCD DRIVER/
49 KEY CONTROLLER
SO
IC 1801
46
V3
PD6538A
47
VDD
7
8
A
B
BACK UP
ACC
GND
FL− C
FL+
RL−
RL+
B.REM
D
S1806
2
E
S1813
S1814
UP
S1822
S1824
EJECT
X1801
5MHz
F
LCD1801
13
8