Block Diagram And Schematic Diagram; Block Diagram - Pioneer DEH-P490IB Service Manual

1

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A
A
TUNER AMP UNIT
B
ANTENNA
CN401
1
1
2
3
C
D
PICKUP UNIT
(P10.5)(SERVICE)
LASER
DIODE
LD-
15
MD
5
VREF
8
HOLOGRAM
UNIT
FOM
3
FOP
FOCUS ACT. 2
E
MONITOR
TOP
TRACKING ACT. 1
DIODE
TOM
4
LD+
14
SPINDLE
M
MOTOR
LOAD/ CARRIAGE
M
MOTOR
F
16
1
2
7 6
FM/AM TUNER UNIT
IC3 EEPROM
AM ANT
FMRF
ATT
FM ANT
ATT
FMRF
RF adj
ANT adj
2 12 15
C
CD CORE UNIT(S10.5COMP2)
RF-AMP, CD DECODER,
MP3/WMA DECODER,
DIGITAL SERVO /
DATA PROCESSOR
VDD
CN101
141
15
Q101 LD
142
5
PD
REFO
133
8 REFOUT
AC,BD,F,E
FOM
3
CD
FOP
DRIVER
2
1 TOP
IC301
TOM
4
BA5839FP
14 TD,FD
PE5547A
12
FOM
11
FOP SD,MD
14
TOP
13
TOM
16
22
5
SOP
LOEJ
LOEJ
15
SOM
21 43
18
CLCONT
CLCONT
LCOP
17 9
41
LCOM CONT
CONT
8
12EJ
7
8EJ
6
DSCSNS
9
HOME
S905
S904 S901
12EJ 8EJ
HOME
S903
DSCSNS
DEH-P490IB/XN/UC
2
3
VDD
13 5 10 9 8 11 14
IC5
5V 3.3V
5.0V
OSC
LPF
IC1
3.3V
MIXER, IF AMP
T51
CF52
IC4
3.3V 2.5V 2.5V
3.3V
22 16 4 17
3.3V REGULATOR
IC420
3 1
NJM2885DL1-33
CN101
7
11
5
IP BUS
1
8
CN171
AUXINL
5
AUXGND
4
KEYD
3
KEYAD
2
CN701
AUDL
9
AUDGND
10
ACC ID
3
ACC PW
5
DOCK TX
6
50
XTAL
DOCK RX
7
X201
16.93MHz iPOD GND
52
/XTAL 4
F/W PWR
1
2
IC201
CN701 CN651
55 LOUT CDL
LOUT 13 3
VDD
VDD 3.3V REGULATOR
Q102
VDD VDD
9
VCC 7
39
/PUEN
RESET
16 /RESET
/RESET 8 8
BRST,BRXEN,BSRQ
BDATA,BSCK
VD VD
VD
2 14
1
15
VD
11
VDSENS
3
18 19 20 21
IC2
2.5V
DET, FM MPX,
AUDIO8V
BUSL+
BUSL-
IP-BUS DRIVER
BUS- 5 1 28
IC 101
TX
BUS+ 6 2 27
HA12241FP
RX
Q101
8
B.UP
79
IPPW
80
Q102 ASENBO
8
IC171 3
7 4
IC703
10
NJM2794V
1 2
TC4066BFT
13 12 6 5
2
KEYD
89
KEYAD
51
AUXON
8
52
IC704
7
IPODON
10
NJM2794V Q707
63
PID
Q706
TX
5.5V 3.3V
66
PSENS
IC 702
TC7SH08FUS1
RX
4 1 33
IPTX
3.3V 5.5V
IC 701
TC7SET08FUS1
4
1 34
IPRX
64
PSENSG
87
PVSENS
Q701 Q703
B.UP
Q702
Q705
65
PPW
13
XIN
IC641
3 1
X601
VDD
NJM2885DL1-33
20.00MHz
11
XOUT
4
CDRST
BRST,BRXEN,BSRQ,BDATA,BSCK
CD 7.5V REGULATOR
Q650
B.UP
Q651
18
VDCONT
4
Lch
23
E
TUNL 2
IN
4
BUSL+
IN
5
BUSL-
IN
1
CDL
IN
SEL-L 3
I
VST,VCK,VDT
PEE 24 B
B
85
MUTE
O
Q8
SYSTEM
CONTROLLER
IC 601(2/2)
Q8
PEG270A
1
SYSPW
20
OELPW
B.UP
Q801
40
FLPILM
42
EJTIN
ILB CONTRO
Q821
B.UP
37 Q822
ILMPW
36
ROT0
35
ROT1
SWVDD CONTR
VDD
Q
38
Q832
SWVDD
29
DPDT
30
KYDT
91
CSENS
DETACH SENSE SW
39
DSENS
S802
4