Block Diagram And Schematic Diagram; Block Diagram - Pioneer DEH-2800 Service Manual

1

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A
A
TUNER AMP UNIT
FM/AM TUNER UNIT
B
CN401
ANTENNA
AM ANT
1
1
2
FM ANT
3
C
PICKUP UNIT
(P10.5)(SERVICE)
LASER
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
F
16
1
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(S10.5COMP1)
V3R3D
CN101
142
15 15
LD
IC201
Q101
UPD63763CGJ
143
5 5 PD
REFO
133
8 8 REFOUT RF-AMP,CD DECODER,
AC,BD MP3 , WMA, DECODER,
DIGITAL SERVO / DATA PROCESSOR
F,E
FOM
3 3
FOP
2 2
1 TOP
1
TD,FD SD,MD
TOM
4 4
14 14
CD
12
FOM
DRIVER
11
FOP
14
TOP
13
TOM
IC301
BA5835FP
16
21
SOP 41
CLCONT
15
SOM
22 40
18
LOEJ
LCOP
17 9
47
LCOM CONT
CD CONTROLLER
32
31
30
42
S904 S905 S901
12EJ 8EJ HOME
S903
DSCSNS
1
IC203
4
V3R3D
3
NJM2886DL3-33
VD
+3.3V REGULATOR
DEH-2800MP/XN/UC
2
3
VDD
13 5 10 9 8 11 14
IC 5
5V ← 3.3V
LPF
IC 1
3.3V
T51
CF52
IC 4
←
3.3V 2.5V
2.5V
3.3V
16 4 17
TUN 3.3V
VCC(SYS 8V)
CN901
LOUT
31
16 5
LOUT
34
XTAL
X201
16.93MHz
35
/XTAL
LOCK/RFOK
56
XRST,XASTB,ADO,XCK,
XSO,XSI,WAIT,XINT
VDD
Q701
VDD
11 10
SWVDD
63
43
LOCK
/CD3VON
14 /RESET
RESET 10 11
CLCONT 39 CDMUTE
CDMUTE 8 13
LOEJ
IC701
BRST,BRXEN,BSRQ
CONT
PE5505A
BDATA,BSCK
VD
VD 1 20
12
X1
12EJ 2 19
X701
4.00MHz
8EJ
13
X2
DSCSNS
49
VDCONT
HOME VDCONT 9 12
CD3VON
46
3
18 19 20 21
IC 2
2.5V
DET, FM MPX
CN651
LOUT
VDD
RESET
BRST,BRXEN,BSRQ
BDATA,BSCK
CD VD
Q991
VD
Q992
VDCONT
4
Rch
24
Lch
23
E
TUN_Lch
1
CD_Lch
2
SYSTEM
IC
P
36
NC
B.UP
4