Kenwood DPX-3070-B, DPX-3070 Service Manual

CD CASSETTE RECEIVER

DP X-30 70

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DP X-30 70B

SERVICE MANUAL

PANEL
DPX-3070
DPX-3070B : (A64-3557-08)

TEL [phone] QQ 376315150 892498299

: (A64-3562-08)

FRONT GLASS ASSY
DPX-3070
DPX-3070B : (B10-4673-08)

: (B10-4676-08)

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© 2004-7 PRINTED IN JAPAN
B53-0188-00 (N) 378

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TEL

REMOTE CONTROLLER ASSY (RC-505)
(A70-2059-05)

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BATTERY
(Not supplied)

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DC CORD ASSY
(E30-6405-08)

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SCREW SET
(N99-1724-05)

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ESCUTCHEON ASSY
(B07-3046-04)

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DP X-30 70/30 70B

BLOCK DIAGRAM

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DPX-04
DPX-3070
DPX-MP4070

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TU221 IC301

AUX IN

CD CH

TEL [phone] QQ 376315150 892498299

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ANT

TUNER

IC12

PLL

MD MECHA
(DPX-05MD)

CASSETTE
MECHA

DPX-04
DPX-3070
DPX-MP4070

CD MECHA

1

3

INPUT
SELECTOR

IC351

CASSETTE
MECHA
DRIVE

CONTROL UNIT

5

1

IC101

IC1

IC921

REMOTE

5

0

MAIN UNIT

E. V OL
BASS/TRE/FADER

REAR

N-FAD

FRONT

IC103

WOW

-12.7dB

MAIN u-COM

IC901

LCD
DRIVER

IC2

SYSTEM
RESET

LED

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IC601

POWER
AMP

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AUDIO 8V

BU 5V

LINE MUTE

ANT CONT

P. CONT

ILLUMI

ACC DET

BU DET

LED 11V

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9

PRE OUT
(FRONT)

SP OUT

PRE OUT
(REAR/N-FAD)

DPX-3070
DPX-MP4070

DPX-3070
DPX-MP4070

LINE MUTE

ANT CONT

P. CONT

ILLUMI

ACC

BU

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DPX-05MD
DPX-3070
DPX-MP4070

DPX-05MD
DPX-3070
DPX-MP4070

DPX-05MD
DPX-3070
DPX-MP4070

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TEL

CD PLAYER UNIT (X32-5490-01)

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BU5V 15

DGND 14

CLK1819

DATA

MUTER

13

MUTEL 12

MRST 11

MSTOP

LOS SW 20

12EJE SW

LOE&LIM

SW

8EJE SW 17

A8V 9

DOUT

Lch 8

AGND 7

Rch226

S7.5V 3

SGND

LO/EJ 5

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NC 16

10

21

1

OPEN

2
4MOTOR

OPEN

S1(LOS SW)

S2(12EJE SW)

S3
(LOE & LIM SW)

S4(8EJE SW)

LPF
LPF

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IC1

CLK

LOE & LIM
SW

S7.5V

BU5V

DATA

MUTER

MECHANISM
CONTROL IC

X1

4.19MHz

o

MRST

MUTEL

MSTOP

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Q2

5V SW

Z MUTE L

Z MUTE R

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PON

PON

SERCH

INTQ

DSP RESET

SCK

DRV MUTE

IC4

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IC2

3.3V AVR

SW5V

SI

AO

STB

SO

CNT
LO/EJ

1

CNTL

MUTE

4ch BTL
DRIVER

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FDIN-

TDIN-

KEYLCD

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SW3.3V

IC3

INTQ
SO

RST
AO
STB
SCK
SI

FD+
TD+
SD+
MD+

SPIN-

SLIN+

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CD RF/SERVO/
DSP/DAC IC

LZM

BIAS

TR+

TR-

FO+

FO-

SPD+

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SPD-

SLD+

SLD-

RZM

1

TX

5

Q3

APC

LOUT

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LD

PRE OUT

ROUT

X2

16.934MHz

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PD

F
A

B
C
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Q4

SW

VREF

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DPU1 :
OPTICAL PICKUP

LD
PD

F

AB

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TR COIL
FO COIL

DM1

SPINDLE

M

MOTOR

DM2

LOADING

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& SLED
MOTOR

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DP X-30 70/3070B

COMPONENTS DESCRIPTION

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● MAIN UNIT

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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

IC351
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
Q806,807 P-ANT SW
Q808
Q809 BACK-UP DET SW
Q810 ACC DET SW
Q811 ILLUMI DET SW
Q812
Q813 BACK-UP DET SW
Q851 P. ON SW

Q852~854

Q855,856 D5V A VR

Q857,858 BU5V AVR
Q859 SW5V SW
Q860 SW5V DRIVER

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CASSETTE MOTOR DRIVER

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P. CON SW (P-ANT SW)

POWER IC STANDBY SW

BMS CONTROL DRIVER

S7.5V AVR

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Audio switch for cassette
and tuner
Driver for cassette motor

External amplifier driver

7.5V power supply for
CD mechanism
5V power supply for
CD mechanism

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1

Ref. No. Application/Function Operation/Condition

Q861,862 MOTOR+B SW

Q863,864 A8V AVR
Q865 P. ON-ILULMI SW
Q866,867 LED11V AVR

Q868,869 MAIN MOTOR+B SW

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
Q921 REMOTE SW

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● 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

IC2 SW3.3V AVR

IC3

IC4 4ch BTL DRIVER coil, spindle motor and

Q2 SW 5V Switch for SW5V.

Q3

Q4 SW For switching equalizer.

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SECURITY INDICATOR SW

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MECHANISM Activates when BU5 and
CONTROL IC

CD RF/SERVO/ Activates when SW3.3V
DSP/DAC IC goes “H”.

AUTOMATIC POWER
CONTROL

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Power supply for
cassette motor
8V power supply for audio

11V power supply for LED
Power supply for
cassette main motor

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MSTOP (Pin No.12) goes “H”.
Activates when CNTL
(Pin No.1) goes “H”.

Focusing coil, tracking

sled motor driver.

LD driver.

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DP X-30 70/30 70B

MICROCOMPUTER’S TERMINAL DESCRIPTION

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● MAIN µ-COM : MN101C49KWG (MAIN UNIT : IC1)

Pin No.

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

TEL [phone] QQ 376315150 892498299

6HACC DET I ACC power supply detection H : ACC OFF
7LILLUMI DET I Dimmer illumination detection L : ILUMMI ON
8 JS1 I Destination setting 3

9 CD MECHA SEL I CD mechanism selection terminal

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

TEL

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
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 -

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38 L INH O Turns off LCD display

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Active

(H/L)

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Pin Name I/O Application Processing Operation

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H : MP3 CD mechanism
L : NORMAL CD mechanism

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L : Normal condition, H : Momentary power down

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DP X-30 70/3070B

MICROCOMPUTER’S TERMINAL DESCRIPTION

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Pin No.

TEL [phone] QQ 376315150 892498299

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Active

(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

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

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

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

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Pin Name I/O Application Processing Operation

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Presence-or-absence setting for ROM collection
(E2PROM)

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During seek operation, H: Number exists
During reception, H : Mono, L : Stereo

H : Mechanism µ-com activates
L : Mechanism µ-com stops

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DP X-30 70/30 70B

MICROCOMPUTER’S TERMINAL DESCRIPTION

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Pin No.

75 CD MOTOR O CD motor control terminal
76 L SW MUTE O Mute control for switch During mute : L
77 NC ­78 L PWIC STBY O Power IC standby control
79 L PWIC MUTE O Power IC mute control During momentary power down : H
80 ES SW O X’over filter select terminal 3

TEL [phone] QQ 376315150 892498299

81 ES SEL2 O X’over filter select terminal 2
82 ES SEL1 O X’over filter select terminal 1
83 H AUD MUTE O Audio mute control terminal H : MUTE ON
84 WOW MODE3 O WOW IC control terminal 3
85 WOW MODE2 O WOW IC control terminal 2
86 WOW MODE1 O WOW IC control terminal 1
87 WOW Focus O WOW IC control terminal 4
88 SRC SEL1 O IC2-5 input source switch
89 BMS CTRL O External amplifier control
90 H PON ILL O Key illumination control (Flash EPM) H : ON
91 MOTOR+B O Cassette mechanism main motor control

TEL

92 H P ANT O

93 H P CON O External amplifier current control H : ON
94 L MUTE ACOUT O Mute on ACOUNT line L : MUTE
95 DAVSS - GND for µ-com
96 H PON O Power supply control H : ON
97 SW5V O SW 5V control H : ON
98 H LX CON O Start-up request to slave unit H : SLAVE UNIT ON, L : SLAVE UNIT OFF
99 LX REQ M O Communication request to slave unit
100 DAVDD - Power supply for µ-com

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Active

(H/L)

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Pin Name I/O Application Processing Operation

3

1

5

1

5

Power antenna control terminal
(When P. CON is Hi only)

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H : ANT ON, L : ANT OFF

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● KEY MATRIX TABLE

KS1 KS2 KS3 KS4 KS5

KI1 3 VOL+

LI2 2 VOL- SRC FM
KI3 1 ATT AM
KI4 WOW 4 5 CD EJ RESET
KI5 EQ 6 TAPE EJ DISP

• Multiple push

Frequency step switch (K/M destination) : 1 + 5 + SRC
After-sales service test mode in assembly line : ATT + WOW + SRC

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DC offset forced clear : DISP + EQ + SRC

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DP X-30 70/3070B

MICROCOMPUTER’S TERMINAL DESCRIPTION

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● CD MECHANISM CONTROL IC : 789166YGB-A513 (X32 : IC1)

Pin No. Name I/O Description Processing Operation

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1~6 NC I NC GND

7 ZMUTE L I 0-bit MUTE detect (Lch)

8 ZMUTE R I 0-bit MUTE detect (Rch)

9AVSS - DGND
10 /MUTE L O Lch Audio mute control L : MUTE ON, H : MUTE OFF
11 /MUTE R O Rch Audio mute control L : MUTE ON, H : MUTE OFF
12 /MSTOP I Interruption for stand-by L : Stop, H : Release for stop mode
13 INTQ I Interruption for DSP IC H : Interruption
14 /FOGUP I Interruption for focus gain up
15 PON O Power ON/OFF control H : ON, L : OFF
16 /SCK O Serial data clock output for DSP
17 VDD1 - BU5V
18 SO O Serial data output for DSP
19 SI I Serial data input for DSP
20 /CLK I/O I2C clock for system control
21 DATA I/O I2C data for system control
22 VPP - Flash saving terminal
23 XT2 - NC Open
24 XT1 I NC GND
25 /MRESET I Reset detect L : Reset, H : Normal condition
26 X2 - System clock 4.19MHz
27 X1 I System clock 4.19MHz
28 VSS0 - DGND
29 VDD0 - BU5V
30 LOE&LIM SW I Loading end & limit SW detect L : Inside detect, H : Outside
31 DRV MUTE O Driver muting L : MUTE ON, H : MUTE OFF
32,33 NC O NC Open
34 /SERCH O Condition of serch state L : Search, H : Normal condition
35 /STB O Data strobe signal output
36 A0 O Command & parameter signal output
37 VSS1 - DGND
38 /DSP RESET O DSP reset control L : Reset, H : Normal condition
39~41 NC - NC Open
42 /PON O Power ON/OFF control L : ON, H : OFF
43 AVDD - BU5V
44 AVREF - BU5V

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Less than 54h : Normal condition,
More than 54h : 0-bit mute detect
Less than 54h : Normal condition,
More than 54h : 0-bit mute detect

L : Foucus gain up, H : Normal condition

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DP X-30 70/30 70B

TEST MODE

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● How to enter the test mode

• In order to enter the test mode, while pressing down [ATT]
+ [WOW] keys simultaneously, press [SRC] key.

● Test mode conditions

• The test mode starts up when ST ANDBY source is selected.

• The volume value is –10dB. (30 on the display)

• Beep prohibited.

• All lights displayed. (3-color LED lights up for all three col-

TEL [phone] QQ 376315150 892498299

ors. (white lighting))

• WOW : OFF

• EQ : Natural

● Test mode (Source : CD)

• When starting disc loading, tracks will be played starting
with the Track No. 9.

• The key operations below will be conducted only when the
source is CD.
Even when changes occur in the track number being pla yed
with the other sources, the play condition will persist.

TEL

•[ ] key is to be used for selecting preset tr ac ks only. (Re­fer to the table below.)

•[ ] key is to be used for down selection, as with regular
operation.

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Preset [1] key for Track No. 19
Preset [2] key for Track No. 5
Preset [3] key for Track No. 15
Preset [4] key for Track No. 14

No. 1~No. 8, No. 14, No. 16~Max No. 9

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Current track Track to be searched

No. 9 No. 15
No. 15 No. 10
No. 10 No. 11
No. 11 No. 12
No. 12 No. 13
No. 13 No. 14

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• The settings for Q, Feq, and Ex are fixed.

Bass Feq 150Hz

Mid

Treble Feq 10kHz

● Test mode (Audio adjustment)

• While the source is being displayed, long-clicking on the
[EQ/AUD] k ey will cause the unit to enter Adjustment Mode.
By toggling on the [FM] and [AM] key, the items below can
be selected and adjustments can be made with [
[

] keys.

The balance adjustment is set for three steps

: RIGHT ↔ CENTER ↔ LEFT (L15, R15)

The fader adjustment is set for three steps

: FRONT ↔ CENTER ↔ REAR (F15 and R15)

● Test mode (DC offset detection)

• When DC error detection is carried out during the Test Mode,

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Q

the unit shuts down without writing the error information to
the EEPROM. The other cases will be the same as the DC
offset specifications.

● Test mode (Display of DC offset detection results)

• When in this mode, the mode for “Display of DC offset de­tection results” will be added in the MENU items at the time
when Test Mode Standby is the source. This will make it
possible to confirm results with presence-or-absence de­tection.
MENU selection : DIMMER adjustment → … → (NAVI ATT
ON/OFF) → (CODE STBY) → Display of DC offset detec­tion results

• Display
DC offset detected : DC Err
DC offset not detected : DC OK

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Q 2.0

Ext ON
Q 2.0
Feq 1kHz

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] and

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● Test mode (EQ adjustment)

• While the source is being displayed, clicking once on the
[EQ/AUD] k ey will cause the unit to enter Adjustment Mode.

When [1] key is pressed: Flat
When [2] key is pressed : Full-boost
When [3] key is pressed : Full-cut

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✳ The detection information in the EEPROM can be forcibly

1

cleared by pressing [
seconds while the DC offset detection (DC Err) is being
displayed. In this case, the display will be for DC offset not
detected. (DC OK).

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] or [ ] key for more than two

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TEST MODE

DP X-30 70/3070B

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● Test mode (Accumulated elapse time display)

• When in this mode, the mode for “Accumulated Elapse Time

• MENU selection: DIMMER adjustment → … → (NAVI ATT

TEL [phone] QQ 376315150 892498299

✳ By pressing [ ] or [ ] key for during Accumulated Elapse

● Releasing the test mode

• The Test Mode is released by the following sequence: Re-

3

Display” will be added in the MENU items at the time when
Test Mode Standby is the source. This will make it possible
to confirm on the accumulated elapse time.

ON/OFF) → (CODE STBY) → Display of DC offset detec­tion results → Accumulated Elapse Time Display

Time Display, the sources for the accumulation can be
switched. (Repeating sequence : TAPE accumulation time
→ CD accumulation time → TAPE accumulation time)

set, ACC OFF and ON, Power OFF and ON. Also, by ACC
OFF and POWER OFF, the Source of Tuner and Audio will
go into the initial conditions.

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0

● Coping with backup current measurement

• Regardless of the Test Mode, when reset in the ACC OFF
state (backup ON), MUTE will be OFF after two seconds.
(The power for peripherals will not be turned OFF until the
CD mechanism stops. This will take two seconds plus.)

● Forced clearing of DC offset detection

• Regardless of the Test Mode, when power is turned on by
[SRC] key while depressing the following keys. This will be
the forced clearing of DC Err condition in the EEPOM. This
will clear the data in the EEPROM even in the case where
there is no error data.

• Key Operation
Press the [SRC] key while pressing the [DISP] and [EQ]
key at the same time.

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ADJUSTMENT

BALANCE/FADER/BASS/TREBLE : CENTER
METAL/DOLBY NR : OFF

No. ITEM

CASSETTE DECK SECTION

DOLBY Connect an AC voltmeter between (EQUALIZER UNIT)

1 (PLAY BACK TCC-130 TAL (TP25) and TAG (GND), TAPE PLAY VR250A (L) 388mV

LEVEL) also between VR250B (R)

INPUT

OUTPUT SETTINGS

SETTINGS SETTINGS POINTS

(FOIL SIDE VIEW of MAIN UNIT)

TAR (TP24) and TAG (GND).

RECEIVER ALIGNMENT

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ALIGN FOR FIG.

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m

9

A B C D E

3

Q277

C

DPX-3070/3070B

1

2

TEL [phone] QQ 376315150 892498299

3

4

5

6

7

PC BOARD (COMPONENT SIDE VIEW)

Q

MAIN UNIT

TEL

w

Q

R211

D205

D206

C803

R856

w

7

3

CN201

13

12

11

8

10

9

R209

R210

C209

C207

RN201

C206

EB

Q805

R808

13942296513

C802

EB EB EB EB

Q864

Q858

Q853

Q854

R855

E

C

B

B

C

E

Q851

w

4

756

R807

R206

EB

Q852

R859

3

6

2
1

R202

C202
R212

D203

D204

C201

D201

D207

Q807

D802

BE

R803

R804

C860

C856

Q855

EB

C853

D814

C852

Q868

EB

EBEEBB

.

R827

C855

R865

Q869

xia

1

3

89

R824

R830

C808

C805

D804

D806

R809

R813

R805

Q813

EB

Q812

BE

E

C

B

B

C

E

Q870

R857

111

210

CN351

R356

R353

R354

C357

C358

R812

D809

D813

R828

R360

R359

R355

D816

Q862

C807

R826

R829

C858

25

1
C356

R811

D808

C830

D820

R357

R358

C359

5

R820

R821

R817

D811

D812

C862

EB

Q859

IC351

C355

D351

RN351

Q861

o

1

116

D801

C865

C354

C352

y

CN801

14

13

C351

C360

5

L801

JW16

JW15

C353

JW14

JW17

JW3
JW7

C153

C154

R351

u

0

Q

D352

R352

E
B
C

Q865

1

JW9

Q

C864

C

R863

B

R864

E

C863

D819

C801

JW18

EB

6

JW19

C146

3

C148

R149

JW6

C151

R152

Q866

8

JW8

R143

7

2413

C155

R150

3

1

R629

R632

24

22

R144

R148

C144

C145

3

6

R146

R147

12 25

IC103

R155

R153

R156

R151

R154

JW20

JW1

RN18

17

IC3

.

9

2

D614

D613

CN291

CN292

JW24

C143

C141

C142

R142
R141

5

1

C164

R145

1

C163

48 37

C162
C161

C158

36

C157

45

1

Q141

8

C156

IC104

14 8

C9

c

1

R157

R159

EB

R158

2

D612

5

R164

R162

R160

R161

R163

C1

R1R2

R9

R13

o

D611

0

C109

C110
C111
C112

C4

16

4

C108

C115
BP

R3R4

R8

RN3

15

9

JW23

JW22

1

1

C101

23 33

8

C116

BP

RN17

RN1

R5

X2

X1

C5

R10

m

8

27

26

JW2

C604

C602

C601

C603

JW5

C107

22

4

2

9

IC101

34

C308

C117

R6

R7

CN1

C309

C303

R54R55

125

26100

RN4

IC601

C623

C612

C614

C613

C611

R104

12

9

44

1

2

2

D601

D602

R625

R103

C106

R102
R101

8

111

20

1

RN16

R56

R630
R622

R623

C105

2

D101

C102
C103

IC301

R37

IC1

RN6

9

D281

EB

Q287

C104

9

1011

R308

RN15

RN5

9

D28

C622

TEL [phone] QQ 376315150 892498299

EB

C284

9

C302

RN14

RN7

10

JIHGF

VR250B

C259B

VR250A

C262B

BP

C257

C262A

C259A

BP

C260

1

24

5

210

19

CN250

CN251

EQUALIZER UNIT

DPX-3070/3070B

1

7

D283

D281

EB

Q287

C284

C302

1011

RN15

RN7

w

3

CN271B

Q282

Q281

C622

Q277

R870

R869

C283

X201

13942296513

C374

BP

C301

R313

RN14

R34

75 51

5076

R21

R23

R20

w

Q

Q

R630
R622

TEL [phone] QQ 376315150 892498299

C104

TEL

101

102
103

R308

RN5

w

L231

D284

R287R278R277

C273

20

1

R238

C304

C373

BP

R30

Q272

EBEBEBEB EB

RN13

RN12

RN9

RN8

6

D274

Q271

C274

D333

C231

C239

IC12

R239

CN301

91

C242

C243

RN11

RN10

R53

.

xia

1

3

CN271A

13

CN331

C332

D332

D331

C236

11

R236

10

C234

BP

C221

102

C372

CN371

C371

R372

R14

R18

R15

L4

L5

R27

R29

R24

R26

R28

R371

R12

R25

122

R11

5

DSP221

R44
R45

R373

RN2

C6

R41

o

1

ANT221

18981

TU221

R43
R42

8

54

IC4

C7

1

y

5

L221

R52
R51

8

IC5

1

u

0

C223

5

4

Q

Q

1

6

4

2

9

8

8

0

5

1

5

1

3

6

7

3

MAIN UNIT

Ref. No. Address

IC1 6E
IC3 6D
IC5 7G

IC12 4F
IC101 4E
IC103 4D
IC104 5D
IC301 5E
IC351 6C
IC601 2E
Q141 5D
Q271 2F
Q272 2F
Q277 3F
Q281 2F
Q282 2F
Q287 3E
Q805 4A

3

Refer to the schematic diagram for the values of
resistors and capacitors.

.

Ref. No. Address

Q807 4B
Q812 4B
Q813 4B
Q851 7A
Q852 6B
Q853 6A
Q854 6A
Q858 5A
Q859 5C
Q861 6B
Q862 7B
Q864 5A
Q865 7C
Q866 7D
Q868 7B
Q869 7B
Q870 5B

c

o

m

9

9

8

2

4

2

9

8

9

2

9

9

9

2

TEL [phone] QQ 376315150 892498299

3

4

5

6

7

11

K L M N O

DPX-3070/3070B

1

2

TEL [phone] QQ 376315150 892498299

3

4

5

6

PC BOARD (FOIL SIDE VIEW)

Q

MAIN UNIT

TEL

Q

C222

C225
C226
C228
R223

7

3

TP69

D221

L222

TP68

Q5

C224

13942296513

R221

Q222

R240

C866

EB

L224

EB

TP11

SCL

R222

TP70

R231

L223

TP42

TP12

SDA

6

FL

C334

R334

TP78

R232

TP32

TP74

R331

C331

C235

R374

C375

TP38

R867

R271

TP77

TP76

R332

Q221

C233

TP39

3

R333

C333

DSG

C241

R237

TP35

TP34

D272

R272

R234

R233

TP36

TP37

TP33

FR

D271

C271

R273

R275

C240

MDR

MDL

TP26

TP28

1

TP73

TP71

C272
R274

R235

TAR

TP18

TP27

TP30

5

R868

R281

TP75

D273

C232

TAL

TP31

TP29

R276

TAG

TP10

1

RRRL

C270

R282

R283

C281

R285

C237

C238

R312

R32

R31

ROMCL WR

5

MAIN UNIT

C624 C625

D282

R284

TP72

C282

R286

D277

TP21

R22

TP113

R301

R48

Q601

R58

TP106

TP112

JC6

JC5

R16

R49

0

R631

C621

R628

R626

EB

Q

C118

D103

R304

R307

R36

R35

TP1

R624

R627

Q

R303

R306

R57

TP103

TP110

TP7

R302

R305

TP111

AC-GND

C8

R17

TP5

TP2

C119

R105

R19

TP109

TP108

TH601

D624

3

R106

C3

D2

4

2

9

8

TP4

TP6

TP88

TP86

TP87

D621

D622

D623

CDR

CDL

TP20

C294

TP22

R299 TP54

TP3

Q101

7

TP107

6

EB

TP105

3

TP101

TP102

1

Q102

C2

TP99

5

EB

D102

C291

R110

1

Q103

R109
C113

TP104

TP98

TP100

R298

L101

EB

EB

TP16

TP15

R297

5

Q104

TP17

R291

R135

0

R133
R134

R132

C114

L2

R38

C10

LED11

R293

R292

C292

C159

C13

43
12

TP66

TP9

R294

C160

R46

IC2

R295

C149

8

C150

Q1

R39

R40

9

R296

C293

9

C147

C152

TP19

D1

EB

2

R50

8

4

Q867

2

C12

9

8

BE

9

2

9

9

C11

TP95

TEL [phone] QQ 376315150 892498299

9

w

w

7

w

12

.

xia

o

y

u

1

6

3

.

c

o

m