Kenwood DPX-502, DPX-502-U, DPX-502-UY, DPXMP-5100-U Service manual

CD/USB RECEIVER

DPX502 DPX502U/DPX502UY DPX-MP5100U

SERVICE MANUAL

SUB WOOFER LEVEL CONTROL

WMA MP3 AAC WAV PLAYBACK

FRONT USB & AUX INPUT

SUB WOOFER LEVEL CONTROL

WMA MP3 AAC WAV PLAYBACK

FRONT USB & AUX INPUT

Panel assy DPX502 (A64-4096-02)

PTY/C.S.

EXTERNAL MEDIA CONTROL

Panel assy DPX-MP5100U (A64-4097-02)

EXTERNAL MEDIA CONTROL

DPX-MP5100U

Panel assy DPX502U/DPX502UY (A64-4098-02)

DPX502

USB

SUB WOOFER LEVEL CONTROL

WMA MP3 AAC WAV PLAYBACK

FRONT USB & AUX INPUT

EXTERNAL MEDIA CONTROL

DPX502U

PTY

USB

Remote controller assy (RC-547) (A70-2085-05)

Battery (Not supplied)

* DC cord (E30-6428-05)

* DC cord (E30-6671-05)

* Adhesive double-coated tape (H30-0595-04)

* Escutcheon (B07-3172-12)

USB

Compact disc (W01-1704-05)

* Escutcheon assy (B07-3046-04)

* Screw set (N99-1779-05)

* Escutcheon (B07-3165-02)

This product complies with the

* Mounting hardware assy (J22-0429-13)

* Lever (D10-4589-04) x2

This product uses Lead Free solder.

RoHS directive for the European market.

E2PROM

FST

FM/AM

CH(ISO IN)

OFFSET

MPX for RDS

RST

PRE MUTE

MUTE

USB I/F for SOC

215

AUX (ISO IN)

I2SI2S

MUTEMUTE

STBY

WIN IN

FRONT-END

A500

LX BUS

E-VOL

PRE OUT

IC400

IC500

IC100

BACK

RESET IC BU5V

P-CON

ANT-CON

ACC DET

DIMMER

SURGE DET

BU DET

Q3,4

BU 5V

SW 20V

Q8,9

Q10-12

ILL+B

SW 14V

A8V

SERVO

Q5,7

SW 5V

Q13,14

P. CON

ANT CON

DIMMER

ACC

BACK UP

LINE

SP OUT(FR) SP OUT(RL)

SP OUT(FL)

SP OUT(RR)

REMOTE

(FRONT)

(REAR/SW)

WIRED

TEL MUTE

IC101

USB5V

BU5V

SW MUTE

ILLUMI+B

REMOTE

IC1

ED1

FL+B

R224

J200

R24-26

Q52,56

Q53,56

Q59

Q57

C57,R62,D58

Q59

Q51

Q1,2,16

Q6,17

PA NE L 5V

Q15

AM+B

Q500,501

SW 14V

FDC

USB 5V

HI-SIDE

SERVO

IC1

IC200

Q6,17

IC103

CN202

J600

Q600,602,605,607Q601,606

DRIVER

MUTE

CONNECTOR

MUTE

PRE

POWER IC

SYSTEM u-COM

ENCODER

ROTARY

ILLUMI

KEY KEY

MATRIX

1/2W

1/2W Rx3

(with DRIVER)

RESET SW

PANEL5V

ROM

MEMORY &

INSTALLER

DECODER

RDS

CORRECTION

J601

SW5V

AM+B A8V

D5V

DAC

2ch

LPF

IC705

IC704

A8V

DME1

SOC

IC711

DIR

D1.8V

SD RAM

NOR FLASH

SHIFT

LEVEL

D5V

IC703

IC716

IC712

D3.3V

IC714

IC715

IC300

IC700

IC102

SERVO

MECHA

D 5V

SW ILLUMI+B

Q18

D 3.3V

IC708

D5V

USB CN

AUX C N

CN1

IC709,710

SHIFT

LEVEL

SWITCH UNIT (X16- )

ELECTRIC UNIT (X34- )

(X15- )

DPX502/502U/502UY

DPX-MP5100U

BLOCK DIAGRAM

DPX502/502U/502UY DPX-MP5100U

DPU1

FO COIL

TR COIL

DM1

SPINDLE MOTOR

DM2

LOADING & SLED MOTOR

CD PLAYER UNIT (X32-598x-xx)

IC1

D.G ND

APC

IC6

FO OUT

TR OUT

MOTOR DRIVER

DM OUT

FM OUT

VREF

S.GND

A,B,C,E,F

FOD,TRD,

TVD,SPL

1 CHIP IC RF AMP

+ SERVO PROCESSOR

+ MICRO

PROCESSOR

VREF

DMUTE

X1 or X2

CLOCK

16.93MHz

RST

MSTOP

CLK

DATA

AVD D

IOVDD

P-ON1

REGVDD

D.G ND

LEVEL SHIFT

IC3

3.3V REG

Q8,9

3.3V SW

LEVEL SHIFT

(0-00),(0-01) ONLY

8V SW

(0-00),(0-01) ONLY

IC2

3.3V REG

(0-01),(0-03) ONLY

D.G ND

S.GND

MOTHER BOARD (X34- )

MRST

MSTOP

CLK

DATA

MUTE

L-ch R-ch

A.GND

AS8V

D.G ND

BU5V

S7V

8EJE-SW

LOE/LIM-SW

12EJE-SW

LOS-SW

S.GND

LO/EJ MOTOR

DPX502/502U/502UY DPX-MP5100U

COMPONENTS DESCRIPTION

ELECTRIC UNIT (X34-560x-xx)

●

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

IC1 SW Regulator Outputs 5.0V. Power supply for D5V, FL+B and USB5V

IC2 A8V REF Power Supply Outputs 1.27V

IC100 Reset IC Lo when detection voltage goes below 3.6V

IC101 E2PROM For installer memory and ROM correction

IC102 System µ-COM Controls FM/AM tuner, the changer, CD mechanism, USB, panel, volume and tone

IC103 Muting Logic IC Controls muting logic

IC200 Hi-side SW

IC300 E-VOL Controls the source, volume and tone

IC400 Power IC Ampliﬁ es the front L/R and the rear L/R to maximum 50W

IC500 RDS Decoder For RDS

IC700 D/A Converter For CD and USB Source

IC702 iPod Authentication Coprocessor For iPod authentication

IC703 Digital Audio Receiver For CD source

IC704 OP-AMP LPF

IC705 Point Regulator Outputs 5.0V. Power supply for D/A converter

IC708 DC Voltage Regulator Outputs 3.3V. Power supply for 3.3V

IC709,710 Inverted 3-State Output It converts 3.3V to 5V

IC711 System On Chip

IC712 Quad 2-Input AND Gate It converts 5V to 3.3V

IC714 SD RAM For System On Chip (IC711)

IC715 NOR Flash ROM For System On Chip (IC711)

IC716 LDO Regulator Outputs 1.8V. Power supply for System On Chip (IC711)

Q1,2,16 AUDIO8V AVR When Q16’s base goes Hi, A8V AVR outputs 8.0V

Q3,4 BU5V AVR While BU is applied, BU5V AVR outputs +5V

Q5,7 SERVO+B AVR When Q7’s base goes Hi, SERVO+B AVR outputs 7.5V

Q6,17 SW14V When Q17’s base goes Hi, SW14V outputs 14V

Q8,9 Serge Protect for IC1 Outputs 20V when BU is over 20V

Q10~12,18 ILL+B AVR When Q18’s base goes Hi, ILL+B outputs 10.5V

Q13,14 SW5V When Q14’s base goes Hi, SW5V outputs +5V

Q15 PANEL 5V When the base goes Lo, PANEL 5V outputs 5V

Q50,58 P-CON SW When Q50’s base goes Hi, AVR outputs 14V

Q51 BU DET When the base goes Hi, Q51 is turned ON

Q52,54 P-CON Protection

Q53,56 P-ANT SW When Q53’s base goes Hi, P-ANT SW outputs 14V

Q57 ACC DET When the base goes Hi, Q57 is turned on

Q59 Serge DET When the base goes Hi, BU DET is turned off

Q60 Small Lamp DET SW When the base goes Hi, Q60 is turned on

Q500,501 AM+B When Q501’s base goes Hi, AM+B is output

Over-current protection of USB power supply

When pin1 goes Hi , USB5V is ON

It can decode MP3 or other types ﬁ le of audio/decompression standards by

software based architecture

When P-CON output voltage decrease is detected, output protection is made.

When P-CON SW is ON, malfunction of Q58 is protected

DPX502/502U/502UY DPX-MP5100U

COMPONENTS DESCRIPTION

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

Q601,606 Pre-out Mute Driver When a base goes Lo, mute driver is turned on

Q600,602,605,607 Pre-out Mute SW When a base goes Hi, pre-out is muted

Q704,706 M-RST Converter It converts 3.3V to 5V

SWITCH UNIT (X16-614x-xx)

●

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

IC1 Remote Control IC

Q1-3 Grid Driver When each transistor’s base is Lo, grid is ON

Q12 VFD Restart In condition of the base is Hi, key-scan starts at the same time as POWER_ON

CD PLAYER UNIT (X32-5980-02)

●

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

Focusing, tracking, sled and spindle servo processing.Automatic adjustment (focusing,

tracking, gain, offset and balance) operations. Digital signal processing (DSP, PLL,

CD Signal Processor & MECHA

IC1

IC2 3.3V REG Supplies 3.3V to IC1 and the laser pick-up.

IC6 4ch BTL Driver

Q3 5V-3.3V Level Shift Shifts 5V to 3.3V, or 3.3V to 5V.

Q6 BU3.3V SW Q6 is ON when Q8 or Q9 is ON.

Q7 APC (Auto Power Control) Drives LD (Laser Diode).

Q8 Power Supply Control

Q9 Power Supply Control

D1,2 5V Force Voltage Prevention 5V Force Voltage Prevention from MECHA µ-COM side.

D3 Laser Diode Protection Prevents reverse bias which is applied to laser. Laser destruction prevention.

µ-COM RF Ampliﬁ er responding to

CD-RW

sub-codes, CIRC error correction, audio data interpolation processing) operations,

and microcomputer function. Generation of RF signal based on the signals from the

APC circuit and the laser pick-up, and generation of servo error (focusing error and

tracking error) signals. Detection of dropout, anti-shock, track crossing and off-tracking

conditions, included gain control function during CD-RW.

Focusing and tracking coil, sled and spindle motor driver, disc loading and eject operation.

Power Supply Control from MECHA µ-COM. Q6 is ON when pin 63 (P ON1) of IC1 is Hi.

Power Supply Control from system µ-COM. Q6 is ON when pin 125 (MSTOP) of IC1 is Hi.

DPX502/502U/502UY DPX-MP5100U

MICROCOMPUTER’S TERMINAL DESCRIPTION

SYSTEM µ-COM: IC102 on X34- (ELECTRIC UNIT)

●

Pin No. Pin Name I/O Application

1 REMO I

2 LX REQ M O Communication request to slave unit

3 LX MUTE I Mute request from slave unit H: Mute ON, L: Mute OFF

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

5 LX RST O Forced reset to slave unit H: Reset, L: Normal

6 BYTE - GND

7 CNVSS - Pull-down

8 XCIN - Sub clock (32.768kHz)

9 XCOUT - Sub clock (32.768kHz)

10 RESET -

11 XOUT - Main clock (12.00MHz)

12 VSS - GND

13 XIN - Main clock (12.00MHz)

14 VCC1 -

15 NMI - Pull-up

16 LX REQ S I Communication request from slave unit

17 RDS CLK I RDS decoder clock input

18 NC - Not used Output L ﬁ xed

19 PON AM I/O AM power supply control Receiving AM: H, Not receiving AM: HI-Z

20 TUN IFC OUT I Front-end IFC OUT input H: Station found, L: No station

21 RDS AFS M I/O Noise detection time constant switching

22 RDS QUAL I RDS decoder QUAL input

23 RDS DATA I RDS decoder data input

24 USB SYNC O Clock output for SW-REG

25 NC - Not used Output L ﬁ xed

26 PWIC BEEP O Beep output

27 TUN SCL I/O Front-end I2C clock input/output MAX. 400kHz

28 TUN SDA I/O Front-end I2C data input/output

29 VFD DATA I/O VFD data input/output Data input/output

30 VFD INT I VFD INT input INT input

31 VFD CLK O VFD clock output (125kHz)

32 VFD RST O VFD reset

33 S SYS DATA O Data output from system µ-com to SOC

34 S SOC DATA I Data input from SOC to system µ-com

35 S SOC SCL I Clock input from SOC to system µ-com

36~38 NC - Not used Output L ﬁ xed

39 ROMCOR DET I E2PROM writing request H: Writing

External display remote control input

and panel remote control input

Truth

Value Table

Processing / Operation / Description

H: Reset released, L: Reset

Momentary power down, Panel detached, 11 minute after

ACC OFF: L

DPX502/502U/502UY DPX-MP5100U

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application

40 NC - Not used Output L ﬁ xed

41 CD DISC12 SW I 12cm-disc detection

42 CD LOS SW I CD loading detection

43 CD MUTE I CD mute request L: Mute request, H: Normal

44 VFD CS O VFD control request H: VFD data can be transferred

45 SOC S RST O SOC reset H: Normal, L: Reset

46 SOC S STOP O SOC stop H: Normal, L: SOC stopped

47 CD DISC8 SW I 8cm-disc detection

48 CD LOE LIM SW I CD detection (Chucking SW) H: Loading completed, L: No disc

49 CD LOEJ I/O CD motor control

50 CD MOTOR O CD motor control

51 ROTARY CW I VOL key detection Detects pulse width

52 ROTARY CCW I VOL key detection Detects pulse width

53 PON PANEL I/O Panel 5V power supply control

54 PON FL+B I/O FL display ﬁ lament power supply control H: ON, Hi-Z: OFF

55 SW USB I/O V-BUS 5V control

56 NC - Not used Output L ﬁ xed

57 PON ILL O Key illumination power supply H: Power ON, L: Power OFF

58,59 NC - Not used Output L ﬁ xed

60 VCC2 -

61 PON O Power supply control H: Power ON, L: Power OFF

62 VSS - GND

63 TYPE 1 I Destination switching

64 TYPE 2 I Destination switching

65 NC - Not used Output L ﬁ xed

66 PCON O External ampliﬁ er control

67~69 NC - Not used Output L ﬁ xed

70 ANT CON O Power antenna control Tuner ON: H

71 NC - Not used Output L ﬁ xed

72 ACC DET I ACC power supply detection ACC found: L, No ACC: H

73 BU DET I Momentary power-down detection BU found: L, Momentary power down: H

74 ILLUMI DET I Dimmer illumination detection L: ON, H: OFF

75 S SYS REQ O

76 S SOC REQ I

77 PWIC MUTE O Power IC mute control

78 PWIC STBY O Power IC standby control

Communication request from system

µ-com to SOC

Communication request from SOC to

system µ-com

Truth

Value Table

Processing / Operation / Description

Refer to the truth value table

ON (For 11 minutes after ACC OFF): L

Momentary power down, panel detached, 11 minute after

ACC OFF: Hi-Z

H: ON, Hi-Z: OFF

Depends on command from SOC

Refer to the truth value table

DPX502/502U/502UY DPX-MP5100U

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application

79 LINE MUTE I Line mute detection TEL mute: Below 1V, NAVI mute: Over 2.5V

80 PWIC DC DET I DC offset detection

81 IC2 SDA I/O I2C data input/output

82 IC2 SCL I/O I2C clock input/output

83 NC - Not used Output L ﬁ xed

84 MUTE AFS I/O AFS mute L: Mute ON, HI-Z: Mute OFF (European model)

85 MUTE 0 O E-VOL front mute L: ON, H: OFF

86 MUTE 1 O E-VOL rear mute L: ON, H: OFF

87 MUTE 2 O E-VOL SW mute L: ON, H: OFF

88 MUTE PRE FR O Pre-out mute FR

89 MUTE PRE SW O Pre-out mute SW L: Mute, H: Mute OFF

90,91 NC - Not used Output L ﬁ xed

92 RDS NOISE I FM noise detection

93 TUN SMETER I S-meter input

94 AVSS - GND

95 NC - Not used Output L ﬁ xed

96 VREF -

97 AVCC -

98 LX DATA S I Data from slave unit

99 LX DATA M O Data to slave unit

100 LX CLK I/O LX-BUS clock

Truth

Value Table

Processing / Operation / Description

L when mute is L (CD playing), momentary power down: L

Dual Zone: H ﬁ xed

Truth value table

CD motor control

Stop L L

Load H L

Eject H H

Brake H Hi-Z

CD MOTOR (Pin50) CD LOEJ (Pin49)

Destination switching

TYPE 2 (Pin64) TYPE 1 (Pin63) MODEL DESTI.

0V 5V DPX502 K

1.5V 5V DPX-MP5100U M

2.5V 5V DPX502U E

3.4V 5V DPX502UY E2

5V 0V DPX-U77 J

TEST MODE

DPX502/502U/502UY DPX-MP5100U

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,

detach the panel.

Test mode default condition

●

• Source is STANDBY.

• Display lights are all turned on.

• The volume is at 30 (-10dB).

• LOUD is OFF.

• CRSC is off regardless of the availability of switching

function.

• SYSTEM Q is NATURAL (=FLAT).

• BEEP should always function when the key is pressed

brieﬂ y.

• AUX is ON.

Speciication of the test mode for tuner sourse

●

The frequency of 98.3MHz is received when the [4] key is

pressed in the TUNER FM mode

Speciﬁ cation of FST soft mute adjustment mode

●

1. Receive the TUNER FM mode in the VOLUME 30 and

LOUD OFF condition.

2. Press and hold the [

FST soft mute adjustment mode.

3. In the adjustment mode, the following display is shown.

Adjust the mute between 0 (18dBu) and F (36dBu) with

the [FM] / [AM] keys.

(Display) SMD–x_ _ _ (Adjustment value, 0~F is displayed

in “x”).

4. When the adjustment is “OK”, press and hold the [

for 2 seconds again to write the adjustment value in

the E2PROM, and after the successful writing-in the

“EP_WRITE” is displayed.

5. Press the [

adjustment mode.

(The test mode continues.)

key brieﬂ y to exit from the FST soft mute

]

key for 2 seconds to enter the

]

] key

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

RDS/RBDS automatic measurement

●

Add the process to replace the visual inspection of PS

display previously done in the production line.

When it is conﬁ rmed that the PS data has been received

and that the content of the PS is “RDS_TEST”, force to

OFF the P-CON terminal. ( The symbol, “_” indicates the

blank. )

→ Make this as the process dedicated for the test mode.

P-CON is recovered by Power OFF→ON.

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

CD source 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 MP3 / WMA

/ AAC / WAV discs with 8 ﬁ les or less, the disc is played

from the 1 track in the normal order.

• Pressing the [

being played.

• When playing an MP3 / WMA / AAC/WAV disc, display

the ﬁ le format before starting to play each ﬁ le.

( “MP3”, “WMA”, “AAC”, “WAV” )

• While in CD source, press the [1] key brieﬂ y to jump to

No.28.

• While in CD source, press the [2] key brieﬂ y to jump to

No.14.

• While in CD source, press the [3] key brieﬂ y to display CD

mechanism model name and the version.

Press the [3] key briefly again to return to the normal

display. (Time code display)

] key goes back by 1 track from the track

•

Forced NARROW: FM1_98.1N

→

Special display in tuner mode

●

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

displayed while in tuner mode.

• “TNE2P_NG” : E2PROM (in front-end: A500 of X34-)

values are still default (not determined)

6C20:0123

Model name Version

• While in CD source, press the [6] key brieﬂ y to jump to

No.15. At this time, the volume value is set to 25 (2V

PRE).

DPX502/502U/502UY DPX-MP5100U

TEST MODE

AUDIO adjust mode

●

• Press the [AUD] key and enter the audio adjustment

mode.

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

the audio adjustment mode.

• Both AUDIO FUNCTION MODE and SETUP MODE

adjustment items are included.

• By pressing [AUD] and [FM] key brieﬂ y, 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 [ ] / [ ] keys

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

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

[ ] keys in 3 steps: -15 ↔ 0 ↔ +15. (Default value: 0)

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

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

value: 0)

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

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

Through)

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

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

Through)

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

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

Normal)

• Volume Offset (other than the internal AUX) is adjusted

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

(Default value: 0)

• Volume Offset (the internal 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)

• Dual Zone 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 menu.

] / [ ] keys

●

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

• Press the remote control [DNPP/SBF] key and the

[DIRECT] key to enter the MENU.

• Continuous forwarding by remote control is prohibited.

• Only in the test mode, make the USB source MENU show

the F/W Version check item and make the F/W Version be

shown as the initial items in the test mode.

• In the test mode, MENU initial item of TUNER source

is Local Seek ON/OFF switching item. (DPX502U/

DPX502UY only).

Dual Zone

●

• If the [AUTO] or [TI] keys is pressed briefly while in a

source other than STANDBY, Dual Zone is switched

between ON / OFF.

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]

Key pressed brieﬂ y: Version is displayed (forwarding)

key

(Display) TYPE : xx_ _ _ → 685K–1.02 → All lights are on

(“xx” is displayed in hexadecimals.) [“Development

name” – “version”]

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

∗

condition of the destination terminal.

[2]

Key pressed brieﬂ y: Serial No. is displayed (8 digits)

key

(Display) xxxxxxxx

[3]

Key pressed brieﬂ y: Power ON time is displayed.

key

Press and hold: To clear Power ON time (Press and hold for

2 seconds while the Power ON time is displayed.)

(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 displayed.

key

Press and hold: To clear CD operation time (Press and hold

for 2 seconds while the CD operation time is displayed.)

(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 times is

key

displayed.

Press and hold: To clear CD EJECT times (Press and hold

for 2 seconds while the CD EJECT time is displayed.)

(Display) EJCxxxxx MAX 65535 (times)

[6]

key

[FM]

Key pressed brieﬂ y: ROM correction version is displayed.

key

When E2PROM is not installed: ERR_

When not written in: R – – – – _ _ _

(Display) R1234 _ _ _ When data not matching: R

[]

Key pressed brieﬂ y: AUDIO data initialization

key

(Display) AUD_INIT

[ ]

Key pressed brieﬂ y: Forced Power OFF data displayed.

key

Press and hold: To clear the forced power OFF information.

(Press and hold for 2 seconds while the forced power OFF

data is displayed.)

(Display) POFF _ – – – (No Forced Power OFF)

SEC (Forced Power OFF because of

missing Security Code)

PNL (Forced Power OFF because

of system µ-com and panel

communication error)

[AUD]

Key pressed brieﬂ y: iPod authentication IC installation status

key

display (iPod 2Wire supporting model)

(Display) iPOD_ OK_ (Installation status OK)

NG (Installation status NG)

[ ]

Key pressed brieﬂ y: CD information display mode ON

key

Please refer to the next table.

∗

CD information display mode

●

I2C communication condition display

(Display) I2C_OK_ _

CD mechanism error log display

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

MCERR1: xx ↔

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

[AM]

CD loading error log display

key

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

MAX 99 (times)

(Number of times is displayed for “xx”.)

↑

CD ejection error log display

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

EJERR4: xx ↔ EJERR1: xx ↔

MAX 99 (times)

(Number of times is displayed for “xx”.)

[switched by [ ] / [ ] keys]

TEST MODE

CD time code error count data display (missing counts)

[switched by [

↓

(Display) CNT_LOSE ↔ CDDA_ _xx ↔ CDROM_xx ↔

CNT_LOSE

[FM]

MAX 99 (times)

key

(Number of times is displayed for “xx”.)

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

[switched by [ ] / [ ] keys]

(Display) CNT_STAY ↔ CDDA_ _xx ↔ CDROM_xx ↔

CNT_STAY

∗∗∗∗_ _ _

MAX 99 (times)

(Number of times is displayed for “xx”.)

]

Key pressed brieﬂ y: CD information display mode OFF

[

key

Press and hold: To clear entire CD information (Press and

hold for 2 seconds)

Initializing AUDIO-related setting value

●

Press the [ ] key brieﬂ y in the STANDBY source and

reset the AUDIO setting value to the test mode default

value.

Other

●

• When Power ON, do not display “CODE_NG”,

“CODE_OFF”, and “CODE_ON”.

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

or [TI] keys for 1 second to switch the PREOUT between

Rear and Sub Woofer (Rear ↔ Sub Woofer).

• When started in the test mode, duration of prohibiting

LINE MUTE shall be changed from 10 seconds to 1

second.

• When in the test mode, do not write security code by

security jig.

• When in the test mode, serial number is not written with a

serial-number-writing jig.

• When in the test mode, when DC offset error detection

is run, the detection information is not written into the

E2PROM.

• When in the test mode, even if the specified time has

passed, back-up memory items are not written into

E2PROM.

• DEMO mode shall not be operated while in the test mode,

backup/installer memory, CD mechanism information,

service information and DC offset error detection

information clear mode.

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

MENU in STANDBY source in the above modes.

DPX502/502U/502UY DPX-MP5100U

] / [ ] keys]

↔

DPX502/502U/502UY DPX-MP5100U

TEST MODE

Clearing backup/installer memory, CD mecha-

●

nism information, service information and DC

offset error detection information (E2PROM data

clearing)

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

to start backup/installer memory data, CD mechanism

information, service information and DC offset error

detection 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 number of times panel was opened/closed

• Displays forced Power OFF data

[DC offset error detection information]

• DC offset error detection display 1

• DC offset error detection display 2

2. When initialization is complete, the following display will

be made.

Normal completion

C D _ : A U _ _

Abnormal ending 1 : backup/installer memory initialization

: NG

Abnormal ending 2 : CD mechanism information/Service

information/DC offset error detection information

initialization : NG

C D _ : A U _ _

Abnormal ending 3 : All initialization : NG

C D _ : A U _

3. While in this mode, even after an elapse of a pre-set time,

no backup memory items will be written to the E2PROM.

4. This mode is released by resetting. (The last screen will

not be retained.)

(Note)

●

In this mode, the DC offset error detection display

“PROTECT” is not shown.

Clearing DC offset error detection information

(E2PROM 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 overall DC offset

error detection condition is displayed.

When not detected: “DC_ _OK_ _” : None of capacitor

leak, improper connection, etc. has been detected.

When detected: “DC_ _ERR_” : Any one of capacitor leak,

improper connection, etc. has been detected.

3. Use the following procedure to check the details of DC

offset error detection information.

C D _ : A U _ _

TEST MODE

DPX502/502U/502UY DPX-MP5100U

[1]

Key pressed brieﬂ y: DC offset error detection display 1 (To

key

show such detection as the improper connection and other

detection)

Key pressed and held for 2 seconds: Clear the information

that indicated if there was such an error as improper

connection and other error.

(Display) DC1_ OK_ _ (No error was detected)

ERR_ (Improper connection or other error is

detected.)

[2]

Key pressed brieﬂ y: DC offset error detection display 2 (To

key

show the number of capacitor leaks.)

Key pressed and held for 2 seconds: Clear the information

that indicates the detected number of capacitor leaks.

(Display) DC2_ 0_ _ _ (No error was detected )

1 (Leak was detected once.)

2 (Leak was detected 2 times.)

3 (Leak was detected 3 times.)

4 (Leak was detected 4 times or more.)

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

last screen will not be retained.)

(Note)

●

In this mode, the DC offset error detection display

“PROTECT” is not shown.

FM/AM channel space switching (DPX502/DPX-

MP5100U only)

While power is OFF, press and hold [1] and [5] keys, and

press [SRC] key to power ON.

Security

●

•

How to enter the forced POWER ON mode

While “_ _ _ _” is being displayed, while simultaneously

pressing [Q] key and [4] key, press [RESET] button, With

this, it is possible to turn the power on for 30 minutes only.

• How to register the security code on the “Car

Audio Passport” sheet after replacing E2PROM

(in the front-end: A500 of X34-) (DPX502U/

DPX502UY only)

1. Enter the test mode. (Refer to “How to enter the test

mode”.)

2. In the test mode, press [MENU] key brieﬂ y to enter the

MENU mode.

When “CODE_SET” is displayed, press [ ] key for 1

second or longer to enter the security registration mode.

3. Input the security code, using [FM] / [AM] / [ ] / [ ]

keys.

[FM] key : number up / [AM] key : number down

[ ] key : cursor to right / [ ] key : cursor to left

4. After inputting the code, press [ ] key for 3 seconds or

longer which causes “RE-ENTER” to be displayed. This is

for “conﬁ rming” the code. Use the method in the step 3 to

re-enter the code.

5. Then, press [ ] key for 3 seconds or longer, which will

display “APPROVED”. This completes the security code

registration.

6. Release the test mode. (Refer to “How to clear the test

mode”.)

Note

: All clear cannot be used to clear the security code.

• How to clear the programmable security code

(DPX502/DPX-MP5100U only)

1. While “_ _ _ _” is being displayed, press [ ] key for 3

seconds or longer while pressing the [AUTO] or [TI] keys.

(This makes the “_ _ _ _” display disappear.)

2. Input “KCAR”, using the remote controller.

Press [5] key of the remote controller 2 times (Input for “K”)

and press [ ] key.

Press [2] key of the remote controller 3 times (Input for “C”)

and press [ ] key.

Press [2] key of the remote controller once (Input for “A”)

and press [ ] key.

Press [7] key of the remote controller 2 times (Input for “R”)

and press [ ] key.

3. The security is cleared and the unit enters STANDBY

source.

4. If wrong codes are input, “_ _ _ _” will be displayed again.

DPX502/502U/502UY DPX-MP5100U

DC OFFSET ERROR

Purpose

●

Prevent customer’s vehicle speakers damages, burnouts,

and smoking.

Avoid the connected speakers to be burned out,

damaged, or to smoke when DC occurs between the

audio power amp. + and - outputs.

Processing after detection

●

• System status

• At the detection of DC error, error data is to be saved

immediately (E2PROM error log save area).

• Display the error message on the display. The system

shall maintain the current condition, including the

operation. Shut down audio system power supply. Set

Mute to ON.

• Although switching between Power OFF and ON (ACC,

BU, and Key operation) is valid, switching from Off to ON

shall be error until the µ-com is reset.

While power-on, even if the IC2VI DCErr output terminal

∗

logic recovered to normal level value, the error condition

shall continue.

• Prohibit to save the backup/installer memory to E2PROM

(nonvolatile memory).

• Controlling µ-com terminal

• Set Mute for all channels including for pre-out.

• Turn off power IC control system power supply. (Set AMP-

Standby function to valid)

• Set P-Con output to OFF (Logic by which external AMP

unit is turned off).

The purpose is to shut down audio output. Basically, the

∗

logic sets the audio output system signal line when in

Standby source.

• Key speciﬁ cation

• Other keys than eject and power keys are invalid.

• Display speciﬁ cation

• Display the “PROTECT” string and blink all characters at

1Hz.

Use the indication below with the highest priority (error

∗

message), and maintain the error message even when

the source is changed.

Display example

Blink

PROTECT

Cancel Condition

●

• Press the Reset terminal on the main body. Or set Backup

to OFF (Unplug and plug back in the DC connector).

The history is maintained (E2PROM data is saved).

• If DC error is detected during the capacitor leak detection

period, the clearing the error by the reset is limited to 4

times.

The startup is inhibited for the 5th time and later reset.

("PROTECT" display has to be blinked.)

Note while in the test mode

●

• While in the test mode, even if DC leak is detected, it is

not written into E2PROM.

When an error is detected, the display is enabled.

Other

●

• Function for checking and clearing data in E2PROM by a

given key shall be included. (Used at production dpt. and

service center, etc.)

alternately

at 1Hz

PWIC_STBY

PWIC_MUTE

AUD_MUTE

2.0sec or more 1.5sec or more

1.0s 1.0s

Improper connection

detection period

Capacitor leak

detection period

0.5s or more

(independent H→L→H)

AUD_MUTE

Other (improper detection etc.)

detection period

50ms

or more

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