Kenwood DPX-302, DPXMP-2100 Service manual

CD RECEIVER

DPX302 DPX-MP2100

SERVICE MAN UAL

DPX302

(K type)

SUB WOOFER LEVEL CONTROL

WMA MP3 AAC PLAYBACK

FRONT AUX INPUT

EXTERNAL MEDIA CONTROL

DPX302

Panel assy (A64-4099-02)

DPX-MP2100

(M type)

DPX-MP2100

Remote controller assy (A70-2087-05)

RC-557

SUB WOOFER LEVEL CONTROL

WMA MP3 AAC PLAYBACK

FRONT AUX INPUT

SIZE AA BATTERY (Not supplied)

EXTERNAL MEDIA CONTROL

DC cord DPX-MP2100: (E30-6408-05) DPX302: (E30-6414-05)

DPX-MP2100

Panel assy (A64-4100-02)

Escutcheon assy (B07-3046-04)

Screw set (N99-1779-05)

Escutcheon (B07-3172-12)

DPX302

Escutcheon (B07-3165-02)

Mounting hardware assy (J22-0429-03)

Lever (D10-4589-04) x2

This product uses Lead Free solder.

Adhesive doublecoated tape (H30-0595-04)

DPX302,DPX-MP2100

BLOCK DIAGRAM

ELECTRIC UNIT (X34- )

CN5

OPEL DISP MARINE DISP

FRONT-END

TUN8V

SW5

AM+B

LX-BUS

713

IC1

IC7

RESET

BU5

S3 S1

RESET

IC1

REMOTE

SW5

ROTARY ENCODER

SW5

Q6,7

SW5V

A8V

PRE+B

PREF

FM : 600mV

1200mV

SYSTEM u-COM

PAN 5 V

PAN 5

IC2

MUTE DC-DET

Q305,306

BU5

SERVO+B

E-VOL

MUTE

ILLUMI+B

A8V

800mV

KEY ILLUMI

SWITCH UNIT (X16- )

BU5V

DME1

CD MECHA

R31,39

1/2W Rx2 D5V

ED1

D5V

R24

1/2W R

VFD

KEY MATRIX

BU5

AUX IN

IC4

Q400-403

IC6

BU5

DC-CN etc

PHONE DIMMER / ACC DET BU DET / ANT CON P CON / P-ON PON CD / PON ILLUMI EX AMP

POWER SP-OUT IC

MUTE

MUTE LOGIC

FRONT L/R REAR L/R

PRE-OUT

FRONT/ REAR/NF

BU DET

RST

ILLUMI+B

SERVO+B

TUN8V

PON ILLUMI

AM+B

(VOL : -10dB)

FM : 557mV AM : 182mV CD/WMA/ MP3 : 1178mV CH : 1251mV AUX : 1251mV

SW5

P.ON

BU5

A8V

AM+B

Q302,303

SW5

Q3,11

SW5V

Q300,301

AM+B

TUNER 8V

Q305,306

SW ILLUMI+B

PHONE

DIMMER

ACC DET

BU DET

EX AMP

ANT CON

P-CON

C104, D107, R112,113

PHONE

Q108

DIMMER

Q112

ACC-DET

Q109

SURGEDET

BU5

Q111

BU-DET

Q107

EXTAMP-CON

Q101,102

ANT-CON

Q103,

106

P-CON-SW

Q1,2

BU5V

IC12

CD5V

IC3

A8V

Q7,8

CD SERVO

Q4,9

SW14V

IC5

ILLUMI +B

BU5

PON CD

P-ON

DC-CN

PHONE ILLUMI ACC B.U. EXT-CONT

P-ANT P-CON

MOTHER BOARD (X14- )

A8V

L-ch R-ch

A.GND D.O UT

MRST

MSTOP

CLK

DATA

MUTE L

MUTE R

BU5V D.G ND

D5.0V

LOE/LIM-SW

8EJE-SW

12EJE-SW

LOS-SW

S.GND S7.5V LO/EJ MOTOR

DPU1

FO COIL

TR COIL

DM1

SPINDLE MOTOR

DM2

LOADING & SLED MOTOR

CD PLAYER UNIT (X32-5920-04)

IC7

RF AMP

+ SERVO PROCESSOR

APC

IC3

MOTOR DRIVER

+ MP3 DECODER

+ WMA DECODER

+ AAC DECODER

+ 1Mbit SRAM

VREF

CLOCK

16.934MHz

D.G ND

DMUTE

IC4

MICRO PROCESSOR

IC8

S.GND

SDRAM 16MBIT

D.G ND

16.00MHz

CLOCK

IC1

A3.3V REG

P-ON2

P-ON1

D.G ND

IC2

IC5

IC6

D3.3V REG

D.G ND

Q7,8

LPF

D.G ND

BU3.3V REG

(0-01)ONLY

D.G ND

S.GND

DPX302,DPX-MP2100

COMPONENTS DESCRIPTION

SWITCH UNIT (X16-394x-xx)

●

Ref. No. Application / Function Operation / Condition / Compatibility

IC1 Remote Control IC

Q1~3 GRID DRIVER Each TransisteR’s base is “L” then GRID is On

Q6,7 SW5V The

Q9 RED SW RED LED is turned on when Q9’s base level goes “H”

Q12

ELECTRIC UNIT (X34-414x-xx)

●

Ref. No. Application / Function Operation / Condition / Compatibility

IC1 System µ-COM Controls FM/AM tuner, the changer, CD mechanism, Panel, volume and tone

IC2 E. Vol Controls the source, volume, tone

IC3 A8V Ref

IC4 Power IC Ampliﬁ es the front L/R and the rear L/R to 50W maximum.

IC5 ILL+B

IC6 Muting logic IC Controls logic for muting

IC7 Reset IC

IC12 SW Regulator Power supply for mp3 and VFD

Q1,2 B.U.5V AVR While BU is applied, BU5V AVR outputs +5V

Q3,11 SW5V When Q11’s base goes Hi, SW5V outputs +5V

Q4,9 SW14V When Q9’s base goes Hi, SW14V outputs 14V

Q5,6,10 AUDIO8V AVR When Q10’s base goes Hi, A8V AVR outputs 8.0V

Q7,8 SERVO+B AVR When Q8’s base goes Hi, S+B AVR outputs 7.5V

Q12 SW for IC12 When Q12’s base gose Lo, IC7 is turned on

Q13

Q101,102 P-ANT SW When Q102’s base goes Hi, P-ANT SW outputs 14V

Q103,106 P-CON SW When Q106’s base goes Hi, AVR outputs 14V

Q104,105

Q107 EXT-AMP-CON When Q107’s base goes Lo, Q107 is turned on

Q108 Small lamp det SW When Q108’s base goes Hi, Q108 is turned on

Q109 SERGE Det. When Q109’s base goes Hi, IC4 is changed into a standby state

Q111 BU det When Q111’s base gose Hi, Q111 is turned on

Q112

Q113 Mute-Driver When a base gose Hi, Pre-out mute driver is turned on

Q114 Mute-Driver Q114 turned on by RST

Q115,116 Pre-out mute driver When a base gose Lo, mute driver is turned on

Q298,299 Tuner8V SW When Q299’s base goes Hi, Tuner8V output 8V

Q300,301

Q302,303 Tuner8V

Q305,306 SW ILL+B When Q306’s base goes Hi, SW ILL+B outputs 11V

Q400~403

VFD RESTART Key scan start at Q12’s Base goes “H” when the SET’s Power is On

Power supply

PANEL 5V When Q13’s base gose Lo, PANEL5V outputs 5V

P-CON Protection Protect Q103 by turning on when P-CON output is grounded

ACC det When Q112’s base gose Hi, Q112 is turned on

AM+B When Q301’s base goes Hi, AM+B is out

Pre-out mute SW When a base goes Hi, Pre-out is muted

Power supply

Output 1.27V

Output 1.225V

“L” when detection voltage goes below 3.6V or less

When Q303’s base goes Hi, Tuner8V outputs 8V

of IC1 is turned on when Q6’s base level goes “L”

DPX302,DPX-MP2100

COMPONENTS DESCRIPTION

CD PLAYER UNIT (X32-5920-04)

●

Ref. No. Application / Function Operation / Condition / Compatibility

IC1 A3.3V regulator

IC2 Low pass ﬁ lter

IC3 4ch BTL driver Driving spindle motor and loading/ejection operation

IC4 Mechanism µ-com

IC5 BU3.3V regulator

IC6 D3.3V regulator Digital 3.3V

IC7 Audio DAC built-in servo DSP MP3, WMA, and AAC compatible

IC11 Buffer IC Level shift

Q1 A3.3V discharge circuit

Q4 APC (Auto power control) Adjusts current to be sent to laser

Q5,6 SW 5V

Q7,8 SW 8V

D1 APC (Auto power control) Protects the pick-up laser diode

Power supply

for audio 3.3V

for backup 3.3V

Power supply

MICROCOMPUTER’S TERMINAL DESCRIPTION

SYSTEM µ-COM (X34: IC1)

●

Pin No.

1 REMO EXTRA I

2 LX MUTE LX M I MUTE request from slave unit

3 AUD SDA AUDIO O E-VOL data output terminal

4 AUD SEL AUDIO O E-VOL control terminal

5 AUD SCL AUDIO O E-VOL clock output terminal

6 BYTE µCOM -

7 CNVSS µCOM -

8 XCIN µCOM I

9 XCOUT µCOM I

10 RESET µCOM -

11 XOUT µCOM -

12 VSS µCOM -

13 XIN µCOM - 12.0MHz

14 VCC1 µCOM -

Pin Name Module

I/O Application

Remote control signal input Detect pulse width

Truth

value table

Processing Operation Description

H: Mute ON, L: Mute OFF

DPX302,DPX-MP2100

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No.

15 NMI µCOM I Not used

16 NC O Not used Fixed to L

17 NC O Not used Output L ﬁ xed

18 LX REQ S LX M I Communication request from slave unit

19 PON AM

20 LX REQ M LX M O Communication request to the slave unit

21 TUN IFC OUT TUNER I F/E IFC OUT input terminal H: Station found, L: Station not found

22 NC O Not used

23 NC O Not used (except RDS and RBDS models) Output L ﬁ xed

24,25 NC O Not used (except RDS model) Output L ﬁ xed

26 PWIC BEEP PWIC O Beep output

27 TUN SCL TUNER I/O F/E I2C clock input/output terminal

28 TUN SDA TUNER I/O F/E I2C data input/output terminal

29 VFD DATA to PANEL I/O

30 VFD INT to PANEL I VFDINT input terminal INT input terminal

31 VFD CLK to PANEL O VFD clock output terminal

32 VFD RST to PANEL O VFD driver reset terminal

33 IC SDA CD I/O

Pin Name Module I/O Application

Power supply

I/O AM power supply control

VFD data input/output terminal Data input/output

CD mechanism I2C data input/output terminal

Truth

value table

Processing Operation Description

H: When AM, Hi-z: When not AM

Output L ﬁ xed

Normal: 125kHz

Low consumption mode: 62.5kHz

H: Clear RESET, L: RESET

L: Momentary power down, when panel

detached and 11 minutes after ACC OFF

34 IC SCL

35 PON PANEL

36~38 NC O Not used Output L ﬁ xed

EPM µCOM I FLASH EPM input terminal

NC O Not used Output L ﬁ xed

40,41

ROMCOR DET EXTRA I E2PROM writing-in request H: Writing-in

NC O Not used (no USB model) Output L ﬁ xed

VFD CS to PANEL O VFD chip select control terminal

ROTARY CW to PANEL I VOL key input Detect pulse width

46 ROTARY CCW

47 CD DISC12 SW

48 CD LOS SW

49 CD MUTE R CD I

50 CD MUTE L CD I CD MUTE (Lch) request terminal

51 CD MRST CD O CD mechanism µ-com RST terminal

CD I/O CD mechanism I2C clock output terminal

Power supply

to PANEL I VOL key input Detect pulse width

CD I CD disc detection terminal (12cm)

CD I CD loading detection terminal

I/O Panel 5V control terminal

CD MUTE (Rch) request terminal

L: ON, Hi-Z: Momentary power down, when

panel detached and 11 minutes after ACC OFF

H: Normal, L: Rch mute request (valid only

when in CD mode)

H: Normal, L: Lch mute request (valid only

when in CD mode)

H: Normal, L: RESET

DPX302,DPX-MP2100

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No.

52 CD MSTOP CD O CD mechanism µ-com stop terminal

53 CD DISC8 SW CD I CD disc detection terminal (8cm)

54 CD LOE LIM SW CD I CD detection terminal (chucking SW) H: Loading completed, L: No disc

55 CD LOEJ CD I/O CD motor control terminal

56 CD MOTOR CD O CD motor control terminal

57 PON ILLUMI

58 PON CD

59 PON

60 VCC2 µCOM -

61 EXT AMP CON EXTRA I/O EXTERNAL AMP control

62 VSS µCOM

63 TYPE 1 TYPE I Destination switching

65 TYPE 3 TYPE I Destination switching

66 TUN TYPE1 TYPE I Destination setting 1

67 TUN TYPE2 TYPE I Destination setting 2

68 OEM DISP DATA EXTRA I/O External display DATA External display

Pin Name Module I/O Application

Power supply

TYPE 2 TYPE I Destination switching

I/O Key illumi power supply control ON: H, OFF: Hi-Z

O Power supply control terminal for CD WMA

O Power supply control POWER ON: H, POWER OFF: L

Truth

value table

Processing Operation Description

H: Mechanism µ-com in operation

L: Mechanism µ-com stop

Refer to the truth value table

L: POWER ON, H: POWER OFF

H: When resetting before M-STOP

Refer to the truth value table

69 OEM DISP CLK EXTRA I/O External display CLK

70 OEM DISP CE EXTRA I/O External display control request External display

71 NC

72 P CON

73 VFD KEY REQ toPANEL I Communication request from VFD driver Connect to INT

74 ANT CON EXTRA

75 ILLUMI DET EXTRA

76 BU DET EXTRA

77 ACC DET EXTRA

78 (PWIC SVR) PWIC

79 PWIC MUTE

PWIC STBY PWIC O Power IC standby control POWER ON: H, POWER OFF: L

LX CON LX M O Start-up request to slave unit H: Slave unit ON, L: Slave unit OFF

82 MUTE PRE R AUDIO O PRE OUT MUTE Rch

Power supply

PWIC O Power IC MUTE terminal

O Not used Output L ﬁ xed

O External ampliﬁ er control terminal

O Power antenna control TUNER ON: H

I Dimmer illumi detection L: ON, H: OFF

I Momentary power down detection

I ACC power supply detection L: ACC ON, H: ACC OFF

O SVR discharging circuit

External display

H: POWER ON, L: POWER OFF

L: STANDBY source

L: BU found

H: BU not found, momentary power down

H: For 5 seconds after POWER OFF

momentary power down, L: Thereafter

L: When in STANDBY source, at momentary

power down, L: While TEL MUTE

H: When CD MUTE R is L (while playing CD)

H: When momentary power down, Fixed to L:

Only when 2 zone or NAVI interruption

DPX302,DPX-MP2100

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No.

83 MUTE PRE L AUDIO O PRE OUT MUTE Lch

84 MUTE 0 AUDIO I/O E-VOL FRONT MUTE terminal L: MUTE ON, Hi-Z: MUTE OFF

85 MUTE 1 AUDIO I/O E-VOL REAR MUTE terminal L: MUTE ON, Hi-Z: MUTE OFF

86 MUTE 2 AUDIO I/O E-VOL OTHER MUTE terminal

87 LINE MUTE EXTRA I Line mute detection

88 NC O Not used (MMC) Output L ﬁ xed

89 PWIC DC DET PWIC I

90 LX RST LX M O Hardware-reset to slave unit H: Reset, L: Normal

91 MUTE C

92 NC O Not used Output L ﬁ xed

93 RDS NOISE TUNER I FM noise detection terminal

94 AVSS µCOM -

95 TUN SMETER TUNER I S meter input

Pin Name Module I/O Application

DC offset detection terminal

AUDIO I/O E-VOL MUTE terminal (for AFS) L: MUTE ON, Hi-Z: MUTE OFF

Truth

value table

Processing Operation Description

H: When CD MUTE L is L (while playing CD)

H: When momentary power down, Fixed to L:

Only when 2 zone or NAVI interruption

L: MUTE ON, Hi-Z: MUTE OFF

TEL MUTE: 1V or lower, NAVI MUTE: 2.5V

or higher, In J-TYPE, NAVI MUTE: 1V or

less, or 2.5V or higher

96 VREF µCOM -

97 AVCC µCOM - Connect to VCC

98 LX DATA S LX M I Data from slave unit

99 LX DATA M LX M I/O Data to slave unit

100 LX CLK LX M I/O LX-BUS clock

Connect to P ON

Truth value table

CD MOTOR, CD LOEJ

CD MOTOR CD LOEJ

Stop L L

Load H L

Eject

Brake H

TUNER TYPE

TUN TYPE1 (66PIN) TUN TYPE2 (67PIN)

Kenwood brand model L

OEM model 1 L H

OEM model 2 H L

OEM model 3 H H

Hi-z

07 2-DIN

TYPE3 TYPE2 TYPE1 Destination X34-414

1 1 0 DPX302 0-11

1 1 1 DPX-MP2100 0-22

DPX302,DPX-MP2100

MICROCOMPUTER’S TERMINAL DESCRIPTION

CD MECHANISM µ-COM (X32: IC4)

●

Pin No. Pin Name I/O Application Processing Operation Description

1 NC - Not used Low-ﬁ xed

2 E2P SCL I/O ROM correction E2P I2C clock

3~5 NC - Not used Low-ﬁ xed

6 VDD - 5V electric potential

7 GND - GND electric potential

8,9 NC - Not used Low-ﬁ xed

10,11 PON1, PON2

12 LOE/LIM SW I Down-limit SW detection L : Inner circumference detection

13 DAC MUTE O DAC MUTE control L : MUTE OFF

14 DAC RST O DAC RESET

15 EMPH O External DAC Emphasis control L : Emphasis OFF

16,17 NC - Not used Low-ﬁ xed

18 IC/Vpp - Write voltage (FLASH) H : In writing

19 MUTE L O Lch audio MUTE control L : MUTE ON, H : MUTE OFF

21 TYPE I DAC switching L : DSP built-in DAC Not used

22 TEST O 1 O

23 TEST O 2 O TEST MODE O 2 (Not used)

24 TEST O 3 O TEST MODE O 3 (Not used)

25 TEST O 4 O TEST MODE O 4 (Not used)

26 NC - Not used Low-ﬁ xed

28~30 NC - Not used Low-ﬁ xed

31 RESET

MUTE R O Rch audio MUTE control L : MUTE ON, H : MUTE OFF

WAIT I Wait control signal detection

O Power ON/OFF control H : ON, L : OFF

L : RESET

TEST MODE O 1 (Not used)

I Reset detection H : NORMAL, L : RESET

32 XT1 I Not used

33 XT2 - Not used

34 REGC

35 X2 -

36 X1 I

38 VDD -

39 NC - NC

40 WRL I Multiplex WRITE signal

41,42

43 RD O

Vss - GND electric potential

NC - Not used Low-ﬁ xed

ASTB O Multiplex ASTB signal

5V electric potential

Multiplex RD signal

DPX302,DPX-MP2100

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application Processing Operation Description

45 NC - Not used Low-ﬁ xed

46 NC - Not used Low-ﬁ xed

47~54 AD0~AD7 I/O Multiplex address/data

55 BVdd

56 BVss - BUS interface GND

57~61 AB8~AB12 I/O Multiplex data/address

62~65 NC - Not used Low-ﬁ xed

66 CS O Chip select control H : OFF, L : ON

67 DSP RESET O DSP reset control H : NORMAL, L : RESET

68~70 NC - Not used Low-ﬁ xed

71 Avdd

72 Avss -

73 Avref I A/D port reference voltage input

74 RAMSEL2 I With DRAM/No DRAM switching for different models H : With DRAM, L : No DRAM

75 RAMSEL I With DRAM/No DRAM switching for different models H : With DRAM, L : No DRAM

76 RZM I 0bit MUTE detection H : ≥1.7V, L : <1.7V

77 LZM I 0bit MUTE detection H : ≥1.7V, L : <1.7V

79 ASEL I Audio output polarity switching H : Reverse output, L : Non-reverse output

80 E2P WR I E2PROM write switching

81 TEST I 0 I TEST MODE I 0 (Not used)

AAC I AAC compatibility switching H : AAC non-compatible, L : AAC compatible

- BUS interface power supply

H : E2PROM WRITE, L : NORMAL

82 TEST I 1 I TEST MODE I 1 (Not used)

83 TEST I 2 I TEST MODE I 2 (Not used)

84 TEST I 3 I TEST MODE I 3 (Not used)

85,86

87 MSTOP I Standby restart interruption H : STOP release, L : STOP

88 INTSV I Interruption from servo IC H : Interruption

89~92 NC

93 D-MUTE O Driver MUTE

94 SYS SDA I/O System µ-com I2C data

95 NC - Not used Low-ﬁ xed

96 SYS SCL

97~99 NC - Not used

100 E2P SDA

NC - Not used Low-ﬁ xed

- Not used Low-ﬁ xed

H : OFF, L : ON

I/O System µ-com I2C clock

Low-ﬁ xed

I/O ROM correction E2P I2C data

DPX302,DPX-MP2100

TEST MODE

How to enter the test mode

●

Press and hold the [1] and [3] keys and reset.

(While “– – – –” is being displayed, power can be ON for

30 minutes.)

How to clear the test mode

●

Reset, momentary power down, Acc OFF, Power OFF.

Test mode default condition

●

• Source is STANDBY.

• Display lights are all turned on.

• The volume is at -10dB (The display is 30).

• LOUD is OFF.

• CRSC is off regardless of the availability of switching

function.

• SYSTEM Q is NATURAL (=FLAT).

• BEEP is always activated by brieﬂ y pressing a button.

• AUX is ON.

Special display in tuner mode

●

Error is found in front-end, etc. if indications below are

displayed while in tuner mode.

“TNE2P_NG”: Front-end E2PROM values are still default

(not determined).

“TNCON_NG”: Cannot communicate with the front-end.

K3I forced switching

●

Every time when [6] key is pressed in tuner FM mode,

switched in the following order: AUTO → Forced WIDE →

Forced MIDDLE → Forced NARROW → AUTO. Default

status is AUTO, and displayed as shown below.

AUTO: FM1_98.1A

Forced WIDE: FM1_98.1W

Forced MIDDLE: FM1_98.1M

Forced NARROW: FM1_98.1N

CD receiver test mode speciﬁ cation

●

• Display mode default setting shall be P-TIME.

• Jumps to the following tracks by pressing the [ ] key.

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

No. 22 → No. 14 → No. 9 (recursive)

Note that when playing a CD-DA disc and an MP3/WMA/

AAC disc with 8 ﬁ les or less, the disc is played from the

1st track in the normal order.

• Pressing the [

being played.

] key goes back by 1 track from the track

• When playing an MP3/WMA/AAC disc, display the file

format before starting to play each ﬁ le. (“MP3”, “WMA”,

“AAC”)

• When CD is the source, press the [1] key brieﬂ y to jump

to No. 28.

• When CD is the source, press the [2] key brieﬂ y to jump

to No. 14.

• When CD is the source, press the [3] key brieﬂ y to display

CD mechanism model name and the version. Press the

[3] key brieﬂ y again to go back to the normal screen. (time

code display)

6680:0123

Model name Version

• When CD is the source, press the [6] key to jump to No.

15. At this time, the volume value is set to 25 (2V PRE).

AUDIO adjust mode

●

•

Press [AUD] key briefly to enter the audio adjustment

mode.

• Press the remote control [∗] key and [AUD] key to go into

the audio adjustment mode.

• Both AUDIO FUNCTION MODE and SETUP MODE

adjustment items are included.

• By pressing [AUD] or [FM] key briefly, switch the item

to be adjusted in the following order. (only in forward

rotation)

The default item shall be Fader, and then the item is

forwarded in the following order: Balance → Bass Level

Middle Level → Treble Level → HPF Front → HPF

→

Rear → LPF Sub Woofer. (thereafter arbitrary)

• Continuous forwarding by remote control is prohibited.

• Fader is adjusted by the VOL knob and [

in 3 steps: R15 ↔ 0 ↔ F15. (Default value: 0)

• Balance is adjusted by the VOL knob and [

in 3 steps: L15 ↔ 0 ↔ R15. (Default value: 0)

• Bass/Middle/Treble Level are adjusted by the VOL knob

and [

value: 0)

• HPF Front / Rear is adjusted by the VOL knob and [ ]

/ [

Through)

• LPF Sub Woofer is adjusted by the VOL knob and [ ]

/ [ ]] keys in 2 steps: 50Hz ↔ Through. (Default value:

Through)

] / [ ] keys in 3 steps: -8 ↔ 0 ↔ +8. (Default

] keys in 2 steps: Through ↔ 220Hz. (Default value:

] / [ ] keys

TEST MODE

DPX302,DPX-MP2100

• Sub Woofer Phase is adjusted by the VOL knob and [ ]

/ [

] keys in 2 steps: Reverse ↔ Normal. (Default value:

Normal)

• Volume Offset (except built-in AUX) is adjusted by the

VOL knob and [ ] / [ ] keys in 2 steps: -8 ↔ 0. (Default

value: 0)

• Volume Offset (built-in AUX) is adjusted by the VOL knob

and [ ] / [ ] keys in 3 steps: -8 ↔ 0 ↔ +8. (Default

value: 0)

• Loudness ON/OFF is adjusted by the VOL knob and [ ]

/ [ ]keys in 2 steps: OFF ↔ ON. (Default value: OFF)

• Bass f / Bass Q / Bass EXT / Middle f / Middle Q / Treble f

are not displayed in the audio adjustment mode.

●

• Press [EQ] key brieﬂ y to enter the MENU.

• Press the remote control [DNPP/SBF] key or the [DIRECT]

key to enter the MENU.

• Continuous forwarding by remote control is prohibited.

Backup current measurement

●

If reset while in Acc OFF (Back Up ON) condition, MUTE

terminal goes off 2 seconds later, rather than 15 seconds.

(During this time, the CD mechanism does not function.)

Special displays while all lights are on

●

When all lights are on with STANDBY source, if the

following keys are pressed, the following messages are

displayed.

[1]

Version is displayed (forwarding)

key

(Display) TYPE : x_ _ _ → (“x” is displayed in hexadecimals)

631K–1.02 → (“development ID” – “version”)

all lights on

TYPE indicates µ-com destination, and shows real-time

∗

condition of the destination terminal.

[2]

Serial No. is displayed (8 digits)

key

(Display) xxxxxxxx

[3]

Key pressed brieﬂ y: Power ON time is displayed.

key

While Power ON time is displayed, press and hold for 2

seconds to clear the Power ON time.

(Display) PON_0Hxx (00~50 is displayed for “xx”.

When less than 1 hour, display by

increment of 10 minutes)

xxxxx (00001~10922 is displayed for “xxxxx”)

MAX 10922 (hours)

→

[4]

Key pressed brieﬂ y: CD operation time is displayed.

key

While CD operation time is displayed, press and hold for 2

seconds to clear the CD operation time.

(Display) CDT_0Hxx (00~50 is displayed for “xx”

When less than 1 hour, display by

increment of 10 minutes)

xxxxx (00001~10922 is displayed for “xxxxx”)

MAX 10922 (hours)

[5]

Key pressed brieﬂ y: Number of CD EJECT time is displayd.

key

While the CD EJECT times is displayed, press and hold for

2 seconds to clear the CD EJECT time.

(Display) EJCxxxxx MAX 65535 (times)

[6]

Not used.

key

[FM]

ROM correction version is displayed.

key

(Display) R1234_ _ _

When E2PROM is not installed: ERR_ _ _ _ _

When not written in: R– – – –_ _ _

When data not matching: R

[]

AUDIO data initialization

key

(Display) AUD_INIT

]

Key pressed brieﬂ y: Forced Power OFF data displayed.

[

key

While the forced power OFF data is displayed, press and

hold for 2 seconds to clear the data.

(Display) POFF_– – –

[ ]

Key pressed brieﬂ y: CD information display mode ON/OFF.

key

While in CD information display mode, press and hold for 2

seconds to clear all CD information.

Please refer to the next table.

∗

CD information display mode

●

I2C communication condition display

(Display) I2C_OK_ _

CD mechanism error log display

(switched by [ ] / [ ] keys)

[AM]

(Display) MCERR1: xx ↔ MCERR2: xx ↔ MCERR3: xx

key

MCERR1: xx ↔

↑

(“– –” or the error code is displayed for “xx”)

CD loading error log display (switched by [

(Display) LDERR1: xx ↔ LDERR2: xx ↔ LDERR1: xx

(Number of times is displayed for “xx”)

MAX 99 (times)

(No Forced Power OFF) ← Fixed display

∗∗∗∗

_ _ _

↔

] / [ ] keys)

↔

DPX302,DPX-MP2100

TEST MODE

CD ejection error log display (switched by [

(Display) EJERR1: xx ↔ EJERR2: xx ↔ EJERR3: xx ↔

EJERR4: xx ↔ EJERR1: xx ↔

(Number of times is displayed for “xx”)

MAX 99 (times)

CD time code error count data display (missing counts)

(switched by [

(Display) CNT_LOSE ↔ CDDA_ _: xx ↔ CDROM_: xx ↔

CNT_LOSE ↔

(Number of times is displayed for “xx”)

↓

MAX 99 (times)

[FM]

CD time code error count data display (count not updated)

key

(switched by [

(Display) CNT_STAY ↔ CDDA_ _: xx ↔ CDROM_: xx ↔

CNT_STAY ↔

(Number of times is displayed for “xx”)

MAX 99 (times)

Initializing AUDIO-related setting value

●

Press the [ ] key in the STANDBY source and reset the

AUDIO setting value to the test mode default value.

Other

●

• When Power ON, do not display “CODE_OFF” and

“CODE_ON”.

• When the source is STANDBY, press and hold [AUTO]

key for 1 second to switch PREOUT Rear and Sub

Woofer. (2PREOUT model)

• When started in Test Mode, duration of prohibiting LINE

MUTE shall be changed from 10 seconds to 1 second.

• While in Test Mode, serial number is not written with a

serial-number-writing jig.

• When in Test Mode, when DC offset error detection is run,

the detection information is not written into the E2PROM.

• DEMO mode shall not be operated while in Test Mode,

CD Mechanism Error Log Data Clearing Mode, or DC

Offset Error Detection Data Clearing Mode.

Also, do not display DEMO ON/OFF option items in the

MENU in STANDBY source in the above modes.

Clearing CD mechanism information and

●

] / [ ] keys)

service

information (Clearing E2PROM (F/E) data)

1. While pressing the [EQ] key and [ATT] key, reset-start to

start CD mechanism and service information initialization.

(While “– – – –” is being displayed, power can be ON for

30 minutes.)

[CD mechanism information]

• Displays I2C communication condition

• Displays CD mechanism error log

• Displays CD loading error data.

• Displays CD ejection error data

• Displays CD time code error count data (missing count)

• Displays CD time code error count data (count not

updated)

[Service information]

• Displays power ON time is displayed

• Displays CD operation time

• Displays number of CD EJECT times

• Displays forced Power OFF data

2. After the initialization process is completed, the following

is displayed.

When successfully completed: “CD_O_ _ _ _”

When ﬁ nished but unsuccessful: “CD_X_ _ _ _”

3. This mode is cancelled by resetting. (The last screen will

not be retained.)

Clearing DC error detection data

●

(E2PROM (F/E) data clearing)

1. Press and hold [3] and [6] keys and reset-start to go into

the DC offset error display mode.

(While “– – – –” is being displayed, power can be ON for

30 minutes.)

2. While in STANDBY source, the current DC offset error

condition is displayed.

When detected: “DC_ERR_ _”

When not detected: “DC_OK_ _ _”

3. While error condition is being displayed, press [AUTO]

key brieﬂ y to clear the detection data. (clear E2PROM)

4. DC error display mode is cancelled by resetting. (The last

screen will not be retained.)

Frequency span switching (K/M type)

●

While pressing and holding [1] and [5] keys, press [SRC]

key simultaneously to power ON.

Security

●

• Forced Power-ON mode (all models)

Even when security is permitted, by pressing and holding

[EQ] and [4] keys and pressing RESET simultaneously,

Power can be ON for 30 minutes. After 30 minutes,

recovered only by reset.

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