Block Diagram And Schematic Diagram; Block Diagram - Pioneer DEH-1850 Service Manual

1

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

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3.1 BLOCK DIAGRAM

3 7 63 1515 0
A
A
TUNER AMP UNIT
FM/AM TUNER UNIT
B
CN401
ANTENNA
AM ANT
1
1
2
FM ANT
3
C
TE
L 13942296513
PICKUP UNIT
(P10.5)(SERVICE)
VCC
LASER
VCC
DIODE
LD-
D
MD
VREF
HOLOGRAM
UNIT
FOM
FOP
FOCUS ACT.
MONITOR
TOP
TRACKING ACT.
DIODE
TOM
LD+
SPINDLE
M
MOTOR
LOAD/ CARRIAGE
M
MOTOR
E
www
F
12
1
http://www.xiaoyu163.com
2
7 6
IC 3 EEPROM
5.0V
OSC
FMRF
ATT
ATT
FMRF
MIXER, IF AMP
RF adj
ANT adj
2 12 15 22
C
D
CD CORE UNIT(S10.5)
CN101 Q102
V+3A 42
12 12 VDD
15 15
2
5 5
REFO
93
8 8
AC,BD
F,E
VDD
FOM
Q101
3 3
FOP
1
2 2
1 TOP
1
CD
TOM
DRIVER
4 4
14 14
12
VO1(+)
11
VO1(-)
FD,TD
14
VO2(+)
13
SD,MD
VO2(-)
IC301
BA5839FP
16
21
40
VO3(-)
CNT
15
VO3(+)
22
41
18
LDIN
VO4(-)
17 9 39
VO4(+) MUTE
36
37
38
35
S904 S905
S901
12EJ 8EJ
HOME
S903
DSCSNS
x ao
. i
DEH-1850/XN/ES
2
http://www.xiaoyu163.com
3
VDD
13 5 10 9 8 11 14 18 19 20 21
IC 5
5V 3.3V
LPF
IC 1
3.3V
T51
CF52
IC 4
3.3V 2.5V
3.3V 2.5V
16 4 17
TUN 3.3V
VCC(SYS 8V)
Q Q
3 6 7
CN702 CN651
PA7/CD3V
LOUT
19
16
LOUT 5
PD
REFOUT
25
XTAL
X201
16.93MHz
23
/XTAL
LD
IC201
PE5497B
CD CONTROLLER
VDD
VDD 11 10
RESET
29
/RESET
RESET
10 11
PA5/CLCONT
54 CDMUTE
PC7/CDMUTE
8 13
PA6/LOEJ
BRST,BRXEN,BSRQ
PA4/CONT
BDATA,BSCK
VD VD
VD 1
20
PA1/12SNS 2 19
PA2/8SNS
PA3/DSCSNS
56 VDCONT
VDCONT
PA0/HOME 9 12
PB1/VDCONT
u163
y
3
4
2 9 9 4
8
Rch
IC 2
2.5V
DET, FM MPX
1 3 1 5 0 5 8 2 9
LOUT
CD 3V REGULATOR
1 3
IC962
VDD
BD7802FP
BRST,BRXEN,BSRQ
BDATA,BSCK
CD VD
Q991
Q992
m
co
.
4
2 8
9 9
24
Lch
23
E
TUN_Lch 1
CD_Lch 2
9 4 2 8 9 9
SYSTEM
IC
PE
36
NC
B.UP