Block Diagram And Schematic Diagram - Pioneer DEH-P940MP Service Manual

1

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM
A
A
TUNER AMP UNIT
FM/AM TUNER UNIT
CN451
AMANT
ANT 1 28 ATT
2
FMANT
27
RFGND
26
LOCH
23
Q101
B.U
B
Q102
CN101
IP-BUS
8
BUS2
5
BUS1
1
7
PU UNIT(SERVICE)(P9MP3)
LASER
DIODE
HOLOGRAM
UNIT
FOCUS ACT.
TRACKING ACT.
MONITOR
DIODE
SPINDLE
MOTOR
LOAD/ CARRIAGE
MOTOR
C
D
20
1
2
FM/AM 1ST IF 10.7MHz
MPXREF 41kHz
AMRF T51 Q51 CF51 CF52 CF53
AMDET
ANT ADJ
IC1
MIXER, IF AMP, DET.
ATT
FMRF
CF202
IC 3
X901
IMG ADJ AM 2ND IF
EEPROM
10.25MHz
450kHz
VDD
VCC
RF ADJ
LOCL
25 7 17 20 22 10 19 14 24 9
Q401
LOCL
SYS+B
IP-BUS DRIVER
5 1
IC 101
6 HA12187FP 2
8
IC 202
MSM51V4265EP-70TS
DRAM
V3R3A
CN101
142
LD-
15 LD IC 201
Q101
UPD63760GJ
MD 141
5 PD
RF-AMP,CD DECODER,
AC,BD
MP3 DECODER,
DIGITAL SERVO / DATA PROCESSOR
F,E
FO+ FOP
1
TO+ TOP
4
LD+ TD/FD SD/MD
14
12
FOP
13
TOP
CD
M DRIVER
16
SOP
15
SOM
18
LCOP
M 22 31
17
LCOM LOEJ
9
29
CONT
IC 301
BA5996FM
78
80
28
S901
HOME
12EJ DISC
CLAMP SENSE 8EJ SENSE
SENSE SENSE
1
4 IC 502 2
V2R5
BA25BC0WFP
+2.5V REGULATOR
1
4 IC 203 2
V3R3A
BA033SFP
+3.3V REGULATOR
F
CD CORE UNIT(S9MP3)
DEH-P940MP/UC
2
3
ASL AMP
VR141
MIC141
2
IC 141
NJM4558MD
L ch
IC 2 FM MPX
6
R ch
5
COMP
21
LDET
18
11 12 15 16 8 13 2 3 4 1
ASENBO
TX
RX
IPPW
BUS+L
CN702
CN902 3
MCK
4
MCK
3
DOUT
4
CN701
38
CN901
XTAL1
LOUT
35 LOUT
LOUT 13
11
Q602
MUTE
Q603
42 43
WINT,
WAIT,
RFOK
X202
IC 702
XWINT,
TC74VHCT08AFT
XWAIT,
FOK
33
CDMUTE
LOEJ
P-BUS
BDATA,BSCK,BSRQ,BRXEN,BRST
CONT
IC 701
PE5269A
VD
CD CONTROLLER
VD 1
23
DSCSNS 2
22
7 DO1
HOME
IC 501
CD3VON
UPD61002GC
WMA DECODER
VDCONT 27
9 15
+3.3V REGULATOR
1 4,5
3VDD IC 703
10
21
S-818A33AUC-BGN
5VDD
VD
CN131
1
2
Q131
3
D
EQ PCB
M951
CN851
AUTOMATIC M
FLAP MOTOR
5
E
4
BLUE FCLSSW
S951
3
CLOSE
RED FOPNSW
2
SWITCH S952
OPEN WHITE
1
PCB
3
4
ASL FILTER
2 7
7 IC 142
NJM4558MD
SYSTEM
CONTROLLER
IC 601(1/2)
PD5750A
42
st
45
currq
43
SD
97
SL
3
TUNPCE
2
TUNPCK
4
tunpce2
1
TUNPDO
40
LOCH
38
LOCL
26
ASENBO
30
TX
29
RX
22
IPPW
MCK
DOUT
LOUT
MICSENS
VD
VDCONT
VDD
AUTO EQUALIZER
Q133
A-EQ
MICSEN
3
6
VDD
DALMON
Q132
5
Q851
B.U
Q852
FLPPW
FLAP MOTOR
CONTROL
4 5
Q853
3 6 FLPOPN
FIN
OUT1 IC 851
14 11 FLPCLS
BA6288FS
OUT2 FIN
4
CN251
CN1501
NOISE NOISE
39 37
TUL TUL
14 12
BUS+L BUS+L
8 18
A-EQ A-EQ
15 11
LOUT MD/CD L
6 20
DOUT DOUT
48 28
MCK MCK
49 27
74
NOISE
D
P
8 40
46
36
30
36
74
asens
20
bsens
23
isens
11
TELIN
37
SYSPW
SP641
BUZZER SYSTEM
CONTROLLER
24
PEE
IC 601(2/2)
PD5750A
27
MUTE
72
dsens
36
KYDT
35
DPDT
12
RESET
10
MICSENS
57
FLPILM
44
DALMON
91
OEL PW
80
FLPPW
56
ILMPW
78
FLPOPN
79
FLPCLS
82
FCLSSW
34
81 SWVDD
FOPNSW