KENWOOD KDC-MP4036U, KDC-MP435U, KDC-W4537UA, KDC-W4537UAY, KDC-W4537UG Service Manual

...

CD RECEIVER

KDC-MP4036U/MP435U/X491 KDC-W4537UA/W4537UAY KDC-W4537UG/W4537UGY KDC-W4737U/W4737UY

SERVICE MANUAL

Panel assy KDC-MP4036U (A64-4129-12)

Panel assy KDC-W4537Uxx (A64-4127-12)

Panel assy KDC-X491 (A64-4221-12)

KDC-MP4036U

KDC-W4537U

KDC-X491

Panel assy KDC-MP435U (A64-4126-12)

KDC-MP435U

Panel assy KDC-MP4737U/MP4737UY (A64-4175-12)

KDC-W4737U

SPARE TDF PANEL

MAIN UNIT NAME TDF PARTS No. TDF NAME

KDC-MP4036U Y33-2720-64 TDF-MP4036U KDC-MP435U Y33-2720-61 TDF-MP74D KDC-W4537UA Y33-2720-63 TDF-W4537U KDC-W4537UAY Y33-2720-63 TDF-W4537U KDC-W4537UG Y33-2720-63 TDF-W4537U KDC-W4537UGY Y33-2720-63 TDF-W4537U KDC-W4737U Y33-2720-62 TDF-W4737U KDC-W4737UY Y33-2720-62 TDF-W4737U KDC-X491 Y33-2720-60 TDF-MP74DX

Mounting hardware assy (J21-9716-03)

* Antenna adaptor (T90-0523-05)

* Depends on the model. Refer to the parts list.

* Screw set (N99-1757-05)

* DC cord (E30-6428-05)

Lever (D10-4589-04) x2

* DC cord (E30-6671-05)

* Plastic cabinet assy (A02-2736-03)

This product complies with the

* Remote controller assy (RC-xxx) (A70-xxxx-xx)

Battery (Not supplied)

* Carrying case (W01-xxxx-xx)

This product uses Lead Free solder.

RoHS directive for the European market.

Escutcheon (B07-3125-01)

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

BLOCK DIAGRAM

ELECTRIC UNIT (X34- )

DME1

IC703

DIR

SOC

A500

FRONT-END

E2PROM

FST

MPX for RDS

J601

LX BUS

IC711

SD RAM

NOR FLASH

SWITCH UNIT

SERVO

IC716

D1.8V

IC709,710,712

LEVEL SHIFT

IC714

IC715

AM+B A8V

SW5V

BACK

(X16- )

D3.3V

J200

RESET SW

REMOTE

ROTARY ENCODER

IC705 IC705

D5V

IC700

2ch DAC

IC500

RDS DECODER

IC101

INSTALLER MEMORY ROM CORRECTION

IC100

RESET IC BU5V

to GND

PANEL DET

CN600

A8V

BU5V

IC103

SERVO

SW MUTE

MUTE DRIVER

USB5V

IC704

215

ILLUMI+B

IC300

AUX (ISO IN)

FM/AM

E-VOL

SYSTEM u-COM

FL+B

R224

1/2W Rx1

ED1

KEY KEY ILLUMI

MATRIX

R17

1/2W Rx1

USB I/F for SOC (IC711)

4VPRE+B

PRE MUTE

USB5V

USB CN

MUTE

DSI

PANEL 5V

Q200

Q15

BU5V

A5V

LPF

IC102

PAN SW5

IC1

FL DRIVER

RST

Q600,602-605,607Q601,606

Q15

PANEL 5V

Q300,302

4VPRE

Q500,501

AM+B

HI-SIDE SW

PRE MUTE

Q13,14

Q20

Q21

SW 5V

IC1IC100

USB 5V FDC

SW 14V

IC400

POWER IC

OFFSET

Q51

BU DET

Q59

SURGE DET

R62,C57,D58

TEL MUTE

Q57

ACC DET

Q60

DIMMER

Q53,56

ANT-CON

Q50,58

P-CON

Q3,4

BU 5V

Q1,2,16

A8V

Q17

SW 14V

Q5,7

SERVO

Q8,9

SW 20V

Q301

4VPRE +B

Q10-12,18

ILL+B

J600

WH1

AUX I N

PRE OUT (FRONT)

PRE OUT (REAR)

PRE OUT (SW)

SP OUT(FL)

SP OUT(FR) SP OUT(RL) SP OUT(RR)

WIRED REMOTE

BACK UP

LINE

ACC

DIMMER

ANT CON

P CON

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

BLOCK DIAGRAM

DPU1

FO COIL

TR COIL

DM1

SPINDLE MOTOR

DM2

LOADING & SLED MOTOR

CD PLAYER UNIT (X32-598x-xx)

IC1

D.G ND

APC

FO OUT

TR OUT

VREF

MOTOR DRIVER

DM OUT

FM OUT

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

IC6

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

D.GND

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

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

COMPONENTS DESCRIPTION

ELECTRIC UNIT (X34-466x-xx)

●

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

IC1 SW REG 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.

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

IC103 Muting Logic IC Controls logic for muting.

IC200 Hi-side SW

IC300 E-VOL Controls the source, volume and tone.

IC301 OP-AMP Reference supply for 4V pre-out.

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

IC500 RDS Decoder Decodes RDS signal.

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 L.P.F.

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

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

IC709,710 Inverted 3-state Output Converts 3.3V to 5V.

IC711 SOC (System On Chip)

IC712 Quad 2-input AND Gate Convert 5V to 3.3V.

IC714 SDRAM SDRAM for SOC.

IC715 NOR Flash ROM NOR ﬂ ash ROM for SOC.

IC716 LDO REG Outputs 1.8V. Power supply for SOC.

Q1,2,16 A8V 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.

Q6,17,20,21 SW14V When Q17’s (or Q21's) base goes Hi,SW14V outputs 14V.

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

Q10,11,12,18 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 PAN5V When the base goes Lo, PAN5V 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.

Q200 DSI When the base goes Hi, security indicator lights.

Overcurrent protection of USB power supply.

When pin1 goes Hi, USB5V is ON.

Decodes MP3 or other ﬁ les 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.

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

COMPONENTS DESCRIPTION

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

Q300,302 4VPRE+B Protect When 4VPRE+B is overcurrent, Q300 and Q302 turn Q301 off.

Q301 4VPRE+B AVR When Q300’s base is 8V, 4VPRE+B outputs 7.4V.

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

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

Q600,602,603,

Q604,605,607

Q704,706 M-RST Converter Converts 3.3V to 5V.

SWITCH UNIT (X16-389x-xx)

●

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

IC1 FL Driver

IC3 Remote Control Sensor

Q1 LED LED SW On when the base goes Hi. (RED LED lights)

Q2 GREEN LED SW On when the base goes Hi. (GREEN LED lights)

Pre-out Mute SW When a base goes Hi, pre-out is muted.

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.

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

MICROCOMPUTER’S TERMINAL DESCRIPTION

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

●

Pin No.

1 REMO I

2 LX REQ M O Communication request to slave unit

3 LX MUTE I Communication 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 condition

6 BYTE -

7 CNVSS -

8 XCIN - Sub clock 32.768kHz

9 XCOUT - Sub clock 32.768kHz

10 RESET -

Pin Name I/O Application

External display remote control input Panel remote control input

Truth

Value Table

Processing / Operation / Description

Panel attached: Pull-up Panel detached: Pull-down

11 XOUT - Main clock 12.00MHz

12 VSS -

13 XIN - Main clock 12.00MHz

14 VCC1 -

15 NMI -

16 LX REQ S I Communication request from slave unit

17 RDS CLK I RDS decoder clock input

18 PANEL DET I

19 PON AM I/O AM power supply control AM reception: H, No AM reception: 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 SW

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 MAX400kHz

Detection of panel connector detached/ attached

H: Panel detached, L: Panel attached

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

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

30 VFD PAN DATA I VFD INT input

31 VFD CL O VFD clock output 125kHz

32 VFD BLK O VFD reset

33 S SYS DATA O System µ-com→SOC data

34 S SOC DATA I SOC→System µ-com data

H: Reset cancelled, L: Reset Momentary power down or Panel detached or 11 minutes after ACC OFF: L

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No.

35 S SOC SCL I SOC→System µ-com clock

36-38 NC - Not used Output L ﬁ xed

39 ROMCOR DET I E2PROM writing request H: Writing

39 EPM I EPM input when writing

40 DSI I/O DSI control

41 CD DISC12 SW I 12cm CD detection

42 CD LOS SW I CD loading detection

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

44 VFD CE O VFD control request H: VFD data transfer ready

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

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

47 NC - Not used Output L ﬁ xed

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

52 ROTARY CCW I VOL key detection

53 PON PANEL I/O Panel 5V power supply

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

Pin Name I/O Application

Truth

Value Table

Processing / Operation / Description

Refer to the truth value table

Detects pulse 15-pulse/360°, 2-pulse/1-click

ON (For 11 minutes after ACC OFF): L Momentary power down or Panel detached or 11 minutes after ACC OFF: Hi-Z

55 SW USB I/O VBUS5V 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 -

63,64 TYPE 1,2 I Destination setting

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 Detection of momentary power down BU found: L, Momentary power down: H

H: ON, Hi-z: OFF (Depends on command order from SOC)

Refer to the truth value table

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No.

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

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

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 for FR

89 MUTE PRE SW O PRE-OUT mute for SW L: Mute ON, H: Mute OFF

Pin Name I/O Application

Communication request of system µ-com

SOC

→

Communication request of SOC→system µ-com

Truth

Value Table

Processing / Operation / Description

Mute is L during CD play: L Momentary power down: L Only condition when DUAL ZONE or NAVI INT: H ﬁ xed

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 -

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

Destination setting

Truth value table

CD motor control

CD MOTOR (Pin50) CD LOEJ (Pin49) Stop L L Load H L Eject H H Brake H Hi-z

TYPE 2 (Pin64) TYPE 1 (Pin63) MODEL

0V 0V KDC-MP435U 0V 1.2V KDC-X491 0V 2.4V VISTEON

1.2V 0V KDC-MP4036U

2.4V 0V KDC-W4537UA

2.4V 1.2V KDC-W4537UG

2.4V 2.4V KDC-W4737U

3.6V 0V KDC-W4537UAY

3.6V 1.2V KDC-W4537UGY

3.6V 2.4V KDC-W4737UY 5V 0V U525

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

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,

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 (Internal AUX supporting model).

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

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.

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)

• “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

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

→

RDS 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

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), 27 (4V PRE).

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

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 ↔ 180Hz. (Default value:

Through)

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

/ [ ]] keys in 2 steps: 60Hz ↔ 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.

• SYSTEM Q (dB EQ) curve selection is not displayed in

the audio adjustment menu.

] / [ ] keys

●

• Press [MENU] 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.

Dual Zone (Dual Zone specification supporting

●

model)

• 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_ _ _ → 632K–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]

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

TEST MODE

CD time code error count data display (missing counts)

] / [ ] keys]

∗∗∗∗_ _ _

[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.

Fluorescent tube short-checking

●

Change the process in the following order by pressing

[ATT] key brieﬂ y while in STANDBY source.

1. All lights off.

2. Every 125msec, light the odd and even number terminals

of the grid with the largest numbers.

3. Lights only odd number terminals.

4. Lights only even number terminals.

5. All lights on.

∗ After the step 5 above, return to the step 1 and repeat

thereafter.

Other

●

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

“CODE_OFF”, and “CODE_ON”.

• When the source is STANDBY, press [AUTO] or [TI]

keys briefly to switch key illumination between GREEN

and RED (GREEN ↔ RED). (in the model with ILLUMI

switching function)

• 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). (1PREOUT

& 2PREOUT model)

• 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.

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

TEST MODE

• 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,

CD Mechanism Information & Service Information & DC

Offset Error Detection Information Clear Mode, or 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.

Clearing CD mechanism information & service

●

information & DC offset error detection informa-

tion (Clearing E2PROM data)

1. While pressing and holding the [MENU] and [ATT]

keys, reset-start to start initializing the CD mechanism

information, service information and DC error detection

information.

(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. 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.)

(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.

[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 (KDC-MP4036U/

MP435U/X491 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 [MENU] key and [4] key, press [RESET] button,

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

only.

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

TEST MODE

• How to register the security code on the “Car

Audio Passport” sheet after replacing E2PROM

(in the front-end: A500 of X34-) (KDC-MP4036U/

W4537Uxx/W4737Ux 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

(KDC-MP435U/X491 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.

KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY

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

+ 30 hidden pages