© 2004-7 PRINTED IN JAPAN
B53-0188-00 (N) 378
CD CASSETTE RECEIVER
DPX-3070
DPX-3070B
SERVICE MANUAL
FRONT GLASS ASSY
DPX-3070
: (B10-4676-08)
DPX-3070B : (B10-4673-08)
PANEL
DPX-3070
: (A64-3562-08)
DPX-3070B : (A64-3557-08)
REMOTE CONTROLLER ASSY (RC-505)
(A70-2059-05)
DC CORD ASSY
(E30-6405-08)
SCREW SET
(N99-1724-05)
ESCUTCHEON ASSY
(B07-3046-04)
BATTERY
(Not supplied)
DPX-3070/3070B
2
BLOCK DIAGRAM
N-F
A
D
REAR
FR
ONT
TU221
IC301
SELECTOR
INPUT
IC101
E. VOL
BASS/TRE/FADER
IC12
PLL
IC601
POWER
AMP
AUDIO 8V
BU 5V
ANT CONT
LINE MUTE
BU DET
ACC DET
ILLUMI
P. CONT
LED 11V
IC2
SYSTEM
RESET
WOW
IC103
-12.7dB
(DPX-05MD)
MD MECHA
DRIVE
CASSETTE
MECHA
IC351
CD MECHA
MAIN u-COM
IC1
REMOTE
IC921
IC901
LCD
DRIVER
LED
KEY
LCD
TUNER
CASSETTE
MECHA
DPX-04
DPX-3070
DPX-MP4070
DPX-3070
DPX-MP4070
DPX-04
CD CH
AUX IN
ANT
PRE OUT
DPX-MP4070
DPX-3070
SP OUT
PRE OUT
LINE MUTE
ANT CONT
P. CONT
ILLUMI
BU
ACC
(REAR/N-FAD)
(FRONT)
DPX-3070
DPX-MP4070
DPX-05MD
DPX-3070
DPX-MP4070
DPX-05MD
DPX-MP4070
DPX-3070
DPX-3070
DPX-MP4070
DPX-05MD
CONTROL UNIT
MAIN UNIT
S1(LOS SW)
S2(12EJE SW)
(LOE & LIM SW)
S4(8EJE SW)
LPF
LPF
IC1
MECHANISM
CONTROL IC
S3
5V SW
Q2
3.3V AVR
IC2
IC3
DSP/DAC IC
CD RF/SERVO/
Q3
APC
Q4
SW
IC4
4ch BTL
DRIVER
LD
PD
C
F
AB
E
TR COIL
FO COIL
M
M
DM1
DM2
SPINDLE
MOTOR
LOADING
MOTOR
& SLED
OPTICAL PICKUP
DPU1 :
BU5V 15
DGND 14
DATA
CLK
18
19
MUTER
MUTEL 12
13
MSTOP
MRST 11
10
LOS SW 20
21
SW
1
8EJE SW 17
A8V 9
Lch 8
AGND 7
DOUT
Rch
22
6
4
MOTOR
LO/EJ 5
SGND
S7.5V 3
2
NC 16
12EJE SW
MST
OP
D
ATA
MRST
MUTEL
MUTER
CLK
PON
SERCH
LOE&LIM
LOE & LIM
SW
PON
INTQ
SI
AO
DSP RESET
STB
SCK
DRV MUTE
SO
CNTL
RST
SI
SCK
STB
AO
INTQ
SO
MD+
SD+
TD+
FD+
LZM
RZM
R
OUT
LOUT
TX
X1
4.19MHz
Z
MUTE
L
Z
MUTE
R
16.934MHz
X2
A
B
C
D
E
PRE OUT
F
LD
PD
FDIN-
BIAS
CNT
TR+
TR-
FO-
FO+
SLD+
SLD-
SPD-
SPD+
TDIN-
SPIN-
SLIN+
MUTE
LO/EJ
OPEN
OPEN
BU5V
SW5V
SW3.3V
S7.5V
VREF
CD PLAYER UNIT (X32-5490-01)
DPX-3070/3070B
3
COMPONENTS DESCRIPTION
MAIN UNIT
Ref. No.
Application / Function
Operation / Condition
IC1
MAIN
µ-COM
Main microcomputer
IC2
RESET
IC3
MUTE
IC4
ROM COLLECTION
IC5
SECURITY ROM
IC12
PLL
PLL for tuner
IC101
E-VOL
Electric volume
IC103
WOW
IC104
WOW FOCUS
IC301
AUDIO SELECTOR
Audio switch for cassette
and tuner
IC351
CASSETTE MOTOR DRIVER
Driver for cassette motor
IC601
POWER IC
Output amplifier
Q1
RESET SW
Q5
FM VCC SW
Q101
E-VOL MUTE SW
Q141
WOW FOCUS SW
Q221
FM/AM VT DRIVER
Q271,272
PRE MUTE DRIVER
Mute switch for preout
Q277
PRE MUTE SW
Q281,282
PRE MUTE DRIVER
Mute switch for preout
Q287
PRE MUTE SW
Q802~805
P. CON SW (P-ANT SW)
Q806,807
P-ANT SW
Q808
POWER IC STANDBY SW
Q809
BACK-UP DET SW
Q810
ACC DET SW
Q811
ILLUMI DET SW
Q812
BMS CONTROL DRIVER
External amplifier driver
Q813
BACK-UP DET SW
Q851
P. ON SW
Q852~854
S7.5V AVR
7.5V power supply for
CD mechanism
Q855,856
D5V AVR
5V power supply for
CD mechanism
Q857,858
BU5V AVR
Q859
SW5V SW
Q860
SW5V DRIVER
Ref. No.
Application/Function
Operation/Condition
Q861,862
MOTOR+B SW
Power supply for
cassette motor
Q863,864
A8V AVR
8V power supply for audio
Q865
P. ON-ILULMI SW
Q866,867
LED11V AVR
11V power supply for LED
Q868,869
MAIN MOTOR+B SW
Power supply for
cassette main motor
Q870
P. ON SW
CONTROL UNIT
Ref. No.
Application/Function
Operation/Condition
IC901
LCD DRIVER
LCD driver
IC921
REMOTE
Receives remote signal
Q903
RED LED SW
Q904
BLUE LED SW
Q905
GREEN LED SW
Q906
SECURITY INDICATOR SW
Q921
REMOTE SW
EQUALIZER UNIT
Ref. No.
Application/Function
Operation/Condition
IC250
DOLBY/EQUALIZER
Cassette audio equalizer
CD PLAYER UNIT (X32-5490-01)
Ref. No.
Application/Function
Operation/Condition
IC1
MECHANISM
Activates when BU5 and
CONTROL IC
MSTOP (Pin No.12) goes "H".
IC2
SW3.3V AVR
Activates when CNTL
(Pin No.1) goes "H".
IC3
CD RF/SERVO/
Activates when SW3.3V
DSP/DAC IC
goes "H".
Focusing coil, tracking
IC4
4ch BTL DRIVER
coil, spindle motor and
sled motor driver.
Q2
SW 5V
Switch for SW5V.
Q3
AUTOMATIC POWER
LD driver.
CONTROL
Q4
SW
For switching equalizer.
DPX-3070/3070B
4
MAIN
µ-COM : MN101C49KWG (MAIN UNIT : IC1)
Pin No.
Active
Pin Name
I/O
Application
Processing Operation
(H/L)
1
VREF-
-
µ-com reference voltage ()
2
REEL S
I
Cassette mechanism reel rotation detection
3
REEL T
I
Cassette mechanism reel rotation detection
4
DC ERR
I
Power IC offset voltage observation
5
LINE MUTE
I
Line mute detection
6H
ACC DET
I
ACC power supply detection
H : ACC OFF
7L
ILLUMI DET
I
Dimmer illumination detection
L : ILUMMI ON
8
JS1
I
Destination setting 3
9
CD MECHA SEL
I
CD mechanism selection terminal
H : MP3 CD mechanism
L : NORMAL CD mechanism
10
VREF+
-
µ-com reference voltage (+)
11
VDD
-
Power supply for
µ-com
12
OSC2
-
Main clock output
13
OSC1
-
Main clock input
14
VSS
-
GND for
µ-com
15
XI
-
Sub clock input
16
XO
-
Sub clock output
17
MMOD
-
Memory mode setting
18
LX DATA M
O
Data to slave unit
19
LX DATA S
I
Data from slave unit
20
LX CLK
I/O
LX BUS clock
21
L
MODE1
I
Cassette mechanism condition detection SW1
H : Normal condition, L : Reset
22
L
MODE2
I
Cassette mechanism condition detection SW2
23
MODE3
I
Cassette mechanism condition detection SW3
24
PWIC BEEP
O
Beep output
25
NC
-
26
BU DET
I
Momentary power down detection
L : Normal condition, H : Momentary power down
27
LX REQ S
I
Communication request from slave unit
28
REMO
I
Remote control signal input
Pulse width detection
29
L DATA IN
I
Data input from LCD driver
30, 31
NC
-
32
VDD2
-
Power supply for
µ-com
33
NRST
-
µ-com reset terminal
L : Reset
34
LCD BLIGHT R
O
LCD back light control (Red)
PWM control
35
NC
-
36
LCD BLIGHT B
O
LCD back light control (Blue)
PWM control
37
NC
-
38
L INH
O
Turns off LCD display
MICROCOMPUTER'S TERMINAL DESCRIPTION
DPX-3070/3070B
5
Pin No.
Active
Pin Name
I/O
Application
Processing Operation
(H/L)
39
L CE
O
Data latch to LCD driver
40
LCD BLIGHT G
O
LCD back light control (Green)
PWM control
41
VPP
-
Power supply terminal for flash memory writing
42
L DATA OUT
O
Data output terminal to LCD driver
43
L DATA IN
I
Data input from LCD driver
44
L CLK
O
Clock output terminal to LCD driver
45
SDA
I/O
E2PROM writing terminal
46
NC
-
47
SCL
I/O
CD mechanism I2C clock output terminal
48
ROMCOL WR
I
Presence-or-absence setting for ROM collection
(E2PROM)
49
LED SI
O
LED control for security indicator
50
JS2
I
Destination setting 4
51
TUN TYPE1
I
Destination setting 2
52
TUN TYPE0
I
Destination setting 1
53
SUB M+
O
Cassette mechanism sub motor control
54
SUB M-
O
Cassette mechanism sub motor control
55
MS IN
I
Between-numbers detection signal input
L : Number exists
56
H
DOLBY
O
DOLBY NR
H : DOLBY NR ON
57
H
C MUTE
O
Equalizer mute
H : MUTE ON
58
L
METAL
O
Play-back equalizer switch
L : METAL ON
59
C F/R
O
Head input switch
L : Forward, H : Reverse
60
MS MODE
O
Detection sensitivity switch
L : G1, H : G2
61
TUN CE
O
Tuner PLL data setting (CS)
62
TUN DI
I
Tuner PLL data setting (DATA IN)
63
TUN DO
O
Tuner PLL data setting (DATA OUT)
64
TUN CLK
O
Tuner PLL data setting (CLOCK)
65
SD/ST-IND
I
Front-end S-meter input
During seek operation, H: Number exists
During reception, H : Mono, L : Stereo
66
CD DISC12 SW
I
CD disk detection terminal (12cm)
67
CD LOS SW
I
CD loading detection terminal
68
CD MUTE R
I
CD mute (Rch) request terminal
L : Rch mute request
69
CD MUTE L
I
CD mute (Lch) request terminal
L : Lch mute request
70
L
CD MRST
O
CD mechanism
µ-com reset terminal
H : Normal condition, L : Reset
71
L
CD MSTOP
O
CD mechanism
µ-com stop terminal
H : Mechanism
µ-com activates
L : Mechanism
µ-com stops
72
CD DISC8 SW
I
CD disk detection terminal (8cm)
73
CD LOE LIM SW
I
CD detection terminal (Chucking switch)
H : Loading completes, L : No disk
74
CD LOEJ
O
CD motor control terminal
MICROCOMPUTER'S TERMINAL DESCRIPTION