Kenwood KD-CMP-7043-U, KD-CBT-742-U Service Manual

CD RECEIVER

KDC-BT6544U/UY KDC-BT7043U KDC-BT742U

SERVICE MANUAL

Panel assy KDC-BT6544U/UY (A64-4736-02)

Panel assy KDC-BT742U (A64-4735-02)

Mounting hardware assy (J22-0789-03)

KDC-BT6544U

Bluetooth

KDC-BT742U

Bluetooth

* DC cord (E30-6428-05)

TDF SPARE-PANEL

MAIN UNIT NAME TDF PARTS No. TDF NAME KDC-BT6544U Y33-3072-71 TDF-BT6544U KDC-BT6544UY Y33-3072-71 TDF-BT6544U KDC-BT7043U Y33-3070-21 TDF-BT7043U KDC-BT742U Y33-3070-10 TDF-BT97D

* DC cord (E30-6671-05)

Panel assy KDC-BT7043U (A64-4738-02)

KDC-BT7043U

Bluetooth

Remote controller assy (RC-547) (A70-2085-15)

* Screw (4x16) (N84-4016-48)

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

* Screw set (N99-1757-15)

Lever (D10-7049-04) x2

* Plastic cabinet assy (A02-2755-23)

This product complies with the

* Escutcheon (B07-xxxx-xx)

This product uses Lead Free solder.

RoHS directive for the European market.

Battery (Not supplied)

* Carrying case (W01-1710-05)

(X92-6360-00)

USB u-COM

iPod AUTHENTICATION

3.3V

LEVEL SHIFT

ROM CORRECTION

ELECTRIC UNIT (X34- )

∗

DME1

CD MECHA

X92-6320-00

(W/O USB MODEL)

X92-6360-00

(USB MODEL ONLY)

A480 or A481

FRONT-END

E2PROM

FST

MPX for RDS

∗

J400

LX BUS

AM+B A8V SW5V

BACK

SWITCH UNIT (X16- )

SERVO BU5V

USB5V

∗

USB CN AUX

∗

RESET IC

S3 S1

RESET SW

IC500

RDS DECODER

IC301

R520

PAN DET

GND

∗

IC241

MEMORY

BU5V

ROTARY ENCODER

∗

SW5V

IC302

Q5,21

SW5V

IC2

REMOTE

IC240

DSP

IC260

E-VOL

I2CI2C

A8V

LPF

ED1

AC IN

AC OUT

WININ

MUTE

DC ERRDC DET

MUTE

∗

A600

BLUETOOTH MODULE

ILLUMI+B

PAN5V

R74,

1/2W Rx2

FL (with DRIVER)

14-SEG 13-DIGIT

MATRIX

FM/AM

CH (ISO IN)

AUX (ISO IN)

SYSTEM u-COM

∗

IC600

KEY ILLUMI KEY (LED)

FDC

DSP5V

A8V A4V PRE+B

STBY

PRE MUTE

∗

P-IC MUTE

J520

CN1

MIC

BT3.3V

Q441,461

SW MUTE

IC303

MUTE DRIVER

RST

PAN5V

SERVO

USB5V

FDC

BT3.3V BT3.3V

ILLUMI+B

PRE+B

DSP5V

BU5V

SW5V

A8V

AM+B

∗

IC150

HI-SIDE SW

∗

IC601

Q440,442,

450,451, 460,462

PRE MUTE

IC200

POWER IC

OFFSET

Q90

BU DET

Q93

SURGE DET

∗

D130

TEL MUTE

Q92

ACC DET

∗

Q130

DIMMER

∗

Q114,115

ANT-CON

Q110-113

Q520

PAN5V

Q30,31

SW5V

Q480,481

AM+B

IC70

D5V

P-CON

Q32,33

BU5V

IC10

A8V

Q40-43

SERVO

Q50-53

ILLUMI+B

∗

Q81-83

4V-PRE +B

∗

Q20-23

DSP5V

∗

J420

∗

WH160

∗

PRE OUT (SW)

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

BACK UP

∗

ACC

∗

P. CON

WIRED REMOTE

PRE OUT

(FRONT)

PRE OUT

(REAR)

LINE MUTE

DIMMER

ANT CON

BLOCK DIAGRAM

/BT7043U/BT742U

KDC-BT6544U/BT6544UY

DPU1

ACB

FO COIL

TR COIL

DM1

SPINDLE MOTOR

DM2

LOADING & SLED MOTOR

CD PLAYER UNIT (X32-6260-00)

IC2

SIGNAL A/B/C/E/F

APC

IC3

FOO

TRO

MOTOR DRIVER

DMO

FMO

VREF

FOO

TRO

DMO

FMO

CLOCK

16.934MHz

RF AMP

SERVO PROCESSOR

MP3 DECODER

WMA DECODER

AAC DECODER

1Mbit SRAM

BU1.5V

SW1.5V

DVSS

D3.3V

AVSS

CD REQ

SRAMSTB

BSIF ST REQ

BSIF GATE BSIF DATA

BSIF BCK

BSIF LRCK

A3.3VLORO

SW3.3V

BUCK

CCE

RST

Z DET

IC4

iPod AUTHENTICATION

IC1

CD SO CD CLK DSP REQ CE CD SRAMSTB CD RST ZDET IN

BSIF ST REQ BSIF GATE BSIF DATA BSIF BCK BSIF LRCK

CD DRIVE MUTE IPOD SDA IPOD SCL

IC9

9.000MHzX132.768kHz

PON

SW3.3V REG

CLOCK

MECHANISM u-COM

DVSS

DVCC3A

PWE

CLOCK

CD LOE LIM SW

RVIN1/RVIN2

DVCC3B

BU3.3V

BU1.5V

DATA SCD SI

REQ A

MSTOP

MRST

DATA M

REQ M

CLK

CD MUTE

USB D+

USB D-

USB OC

USB VBUS SW

IC7

BU3.3 / BU1.5V REG

IC5

LEVEL SHIFT

IC6

LEVEL SHIFT

MOTHER BOARD (X34- )

SO CCE MSTOP MRST

SI REQ BUCK MUTE L/R

USB+ USBVBUS OC VBUS SW

Lch Rch

BU5V

DGND

BLOCK DIAGRAM

INV

AGND

LOS SW

12EJE SW

LOE SW

LO/EJ

MOTOR

S7.5V

S.GND

/BT7043U/BT742U

KDC-BT6544U/BT6544UY

KDC-BT6544U/BT6544UY /BT7043U/BT742U

COMPONENTS DESCRIPTION

ELECTRIC UNIT (X34-629x-xx)

●

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

IC10 Audio 8V REF / Power Supply Outputs 1.27V.

IC70 Digital AVR for Panel & USB Switching regulator for USB&VBUS and FDC (5V).

IC150 Power Control SW USB power control switch with over current detection and protection.

IC200 Power IC Ampliﬁ es front L/R and rear L/R.

IC240 DSP Digital signal processor.

IC241 E2P Memory DSP setting memory.

Selects analog source & full source volume. Analog source: AM/FM, CH, AUX.

IC260 Source Selector & E-VOL

IC301 System μ-COM Reset Control Outputs Lo (system μ-COM reset) when detection voltage goes below 3.6V.

IC302 System μ-COM

IC303 Mute Logic Controls logic for muting.

IC500 RDS & RBDS Decoder

IC600 Bluetooth MIC Buffer MIC signal differential ampliﬁ er.

IC601 Bluetooth Module 3.3V AVR During active time, POWER is ON.

Q10~12 Audio 8V AVR During active time, POWER is ON.

Q20~23 DSP5V AVR When the base of Q23 goes Hi, DSP5V AVR is ON.

Q30,31 SW5V During active time, POWER is ON.

Q32,33 BU5V AVR During active time, POWER is ON.

Q40~43 Servo AVR During active time, POWER is ON.

Q50~53 ILLUMI AVR During active time, POWER is ON.

Q90 BU DET SW Detects the backup voltage. If the backup is detected, it is ON.

Q92 ACC DET SW Detects ACC voltage. If ACC is detected, it is ON.

Q93 Surge DET SW Detects over-input voltage. If surge is detected, it is ON.

Q110~113 Power Cntrol Output

Q114,115 Power ANT SW During active time, tuner source is active.

Q130 Small Lamp DET SW Detects small lamp. If small lamp is detected, it in ON.

Q170 Level Shift Sysytem μ-COM (5V) ↔ Bluetooth module (3.3V)

Q440 Preout Mute SW Non-fader Lch

Q441 Preout Mute Driver (Non-fader) When this transistor is ON, mute is active.

Q442 Preout Mute SW Non-fader Rch

Q450 Preout Mute SW Front Lch

Q451 Preout Mute SW Front Rch

Q460 Preout Mute SW Rear Lch

Q461 Preout Mute Driver (F/R) When this transistor is ON, mute is active.

Q462 Preout Mute SW Rear Rch

Q480,481 AM+B SW During active time, AM source is active.

Q520 PAN5V SW When the base goes Lo, PAN5V is ON.

Q601 Bluetooth Module Reset When the base goes Hi, Bluetooth module is reset.

Digital source is selected by CD mecha. (CD/USB)

Speaker-out “DC-offset” detection and protection. (This function consists of

IC260 and IC200)

System control including power management, panel control, AM/FM/CH/SOC

control, external control and etc.

When the base of Q110 goes Hi, power control output is ON. During active time,

audio source is active.

KDC-BT6544U/BT6544UY /BT7043U/BT742U

COMPONENTS DESCRIPTION

SWITCH UNIT (X16-6500-21)

●

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

IC2 Remote Controller Remote control receiver.

Q5 PAN5V When the base goes Hi, PAN5V is supplied for IC2.

Q20 Key Scan Timing Adjustment When the base goes Hi, key scan starts.

Q21 PAN5V When the base of Q5 goes Hi, PAN5V is supplied for IC2.

Q22 Grid Reversing Driver When the base goes Hi, GRID1 is ON.

Q23 Grid Reversing Driver When the base goes Hi, GRID2 is ON.

Q24 Grid Reversing Driver When the base goes Hi, GRID3 is ON.

Q51 Left Sub-ILLUMI Controller When the base goes Hi, left sub-illumination is ON.

Q52 Center 3-key ILLUMI Controller When the base goes Hi, center 3-key illuminations are ON.

Q53 Right Sub-ILLUMI Controller When the base goes Hi, right sub-illuminations are ON.

CD PLAYER UNIT (X32-6260-00)

●

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

IC1 Mechanism μ-COM

IC2 Servo DSP with Built-in Audio DAC

IC3 4ch BTL Driver

IC4 iPod Authentication

IC5 3.3V→5.0V Level Shift Converts communication signal from 3.3V to 5.0V.

IC6 5.0V→3.3V Level Shift Converts communication signal from 5.0V to 3.3V.

IC7 BU1.5V / BU3.3V Regulator

IC8 E2PROM

IC9 A3.3V Regulator Power supply for digital, analog and audio line.

Q3 D1.5V Output

Q5 B.3.3V Output

Q6 Control signal Inverter Controls Q5.

Q7 APC (Auto Power Control) Laser diode driver.

Q9 Control signal Inverter

D1 Laser Diode Protection

D2,3 Countermeasure against Static Electricity

Controls DSP and peripheral circuit.

USB host controller. (Compliant with Universal Serial Bus Speciﬁ cation Rev2.0)

Built-in MP3·WMA·AAC decoder.

Built-in 1M-bit-SRAM.

Driver for focusing & tracking coil, driver for sled & spindle motor, and operation

for disc loading & ejection.

Connection authentication for iPod.

MFI341S2162: iPhone-compliant.

Power supply for digital back-up.

Power supply for mechanism μ-COM.

Memory for ROM correction.

Countermeasure for software malfunction.

The output voltage in which the power supply that diverges from the BU1.5V line

is turned on and off is used as D1.5V.

The output voltage in which the power supply that diverges from the BU3.3V line

is turned on and off is used as D3.3V.

Because the detection logic of LOE/LIM_SW is different in the mechanism

μ-COM and the system μ-COM, the logic to the mechanism μ-COM side is

reversed.

Prevents reverse bias which is applied to laser.

Laser destruction prevention.

The potential difference between DGND and AGND is absorbed, and the

malfunction by static electricity is prevented.

KDC-BT6544U/BT6544UY /BT7043U/BT742U

MICROCOMPUTER’S TERMINAL DESCRIPTION

SYSTEM μ-COM: IC302 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 B SYS DATA O Serial output to Bolero

4 B MECHA DATA I Serial input from Bolero

5 B MECHA CLK I Serial clock input from Bolero

6 BYTE -

7 CNVSS -

8 XCIN - Sub clock 32.768kHz

9 XCOUT - Sub clock 32.768kHz

10 RESET -

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 (Terminal for European model)

18 PANEL DET

19 PON AM I/O AM power supply control AM operated: H, AM not operated: 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 (Terminal for European model)

22 RDS QUAL I/O RDS decoder qualiﬁ cation input (Terminal for European model)

23 RDS DATA I RDS decoder data input (Terminal for European model)

24 V SYNC - Not used Output L ﬁ xed

25 NC - Not used Output L ﬁ xed

26 PWIC BEEP O Beep output 2kHz/1kHz (Model with Bluetooth)

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

30 ROTARY CW I VOL key detection (Clockwise)

31 VFD CLK O VFD clock output 125kHz

32 VFD RST

33 BT SYS DATA O Data output to Bluetooth

34 BT BT DATA I Data input from Bluetooth

35,36 NC - Not used Output L ﬁ xed

37 PON D5V I/O SW-REG control H: ON, Hi-Z: OFF

38 NC - Not used Output L ﬁ xed

39 ROMCOR DET I E2PROM writing request H: Writing

40 PDN O Simple DSP power down H: ON, L: OFF

41 DFZ MUTE I Mute request from simple DSP L: Mute request

External remote control input and panel remote

control input

I Panel connector detached/attached detection H: Panel detached, L: Panel attached

O VFD reset

Truth Value

Table

Processing / Operation / Description

Detects pulse width

TDF: 15-pulse/360°, 2-click/1-pulse

H: Reset released, L: Reset

Momentary power-down or panel detached

or 11 minutes after ACC OFF: L

KDC-BT6544U/BT6544UY /BT7043U/BT742U

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application

42 ROTARY CCW I VOL key detection (Counterclockwise)

43 NC - Not used Output L ﬁ xed

44 VFD CS O VFD control request H: Possible to transfer VFD data

45 BT RST O Bluetooth module reset L: Normal, H: Bluetooth reset

46 VFD INT I VFD-INT input

47 NC - Not used Output L ﬁ xed

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

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

50 CD DISC12 SW I 12cm disc detection

51 CD LOS SW I CD loading detection

52 MECHA STOP O SOC (System On Chip) stop H: Normal, L: SOC stopped

52 CD PON O CD mechanism power supply control H: ON, L: OFF

53 CD MUTE

54 S MECHA REQ

55 MECHA RST

56 SRAMSTBY O Decoder SRAM standby control H: SRAM standby

56 NC - Not used Output L ﬁ xed

CD LOE LIM

58 S SYS REQ O

58 MDSP CE O Mechanism chip enable

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

60 VCC2 -

61 DRV MUTE O CD motor driver mute output

62 VSS -

63 TYPE 1 I Destination SW

64 TYPE 2 I Destination SW

65 NC - Not used Output L ﬁ xed

66 CD LOEJ I/O CD motor control

67 CD MOTOR O CD motor control

68~70 NC - Not used Output L ﬁ xed

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

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 ANT CON O Power antenna control Tuner ON: H

75 PCON O External power ampliﬁ er control

76 PWIC SVR O Power IC SVR discharge circuit control H: ON, L: OFF

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

I CD Mute request L: Mute request, H: Normal

Communication request from mechanism to system

μ-COM

O SOC (System On Chip) reset H: Normal, L: Reset

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

Communication request from system μ-COM to

mechanism

Truth Value

Table

Processing / Operation / Description

Detects pulse width

TDF: 15-pulse/360°, 2-click/1-pulse

ON (For 11 minutes after ACC OFF): L

Momentary power-down or panel detached

or 11 minutes after ACC OFF: Hi-Z

Refer to the truth value table

KDC-BT6544U/BT6544UY /BT7043U/BT742U

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application

80 ST DC DET I Wrong connection detection

81 E2P SDA I/O E2PROM I2C data input/output

82 E2P SCL I/O E2PROM I2C clock input/output

83 DC DET I DC offset detection

84 MUTE AFS

85 MUTE 0

86 MUTE 1

87 MUTE 2

88 MUTE PRE FR

89 MUTE PRE SW

90 RDS NOISE I FM noise detection (Terminal for European model)

91 TUN SMETER I S-meter input

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

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

94 AVSS -

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

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

I/O AFS mute L: Mute ON, Hi-Z: Mute OFF

O E-VOL Front mute L: ON, H: OFF

O E-VOL Rear mute L: ON, H: OFF

O E-VOL Sub Woofer mute L: ON, H: OFF

O PRE-OUT mute Front/Rear

PRE-OUT mute SW (Sub Woofer)

* For both PRE-OUT Rear selected and SW selected.

Truth Value

Table

Processing / Operation / Description

Lo when mute is Lo (CD played).

Momentary power-down: L

H ﬁ xed only when Dual Zone is ON.

L: Mute, H: Mute OFF

Lo when mute is Lo (CD played).

Momentary power-down: L

• Truth value table

CD motor control

Stop L L

Load H L

Eject H H

Brake H Hi-z

CD motor CD loading/eject

KDC-BT6544U/BT6544UY /BT7043U/BT742U

TEST MODE

Display description

■

Key Description of display Description

÷÷÷÷÷÷÷

A symbol “■” in the key column indicates that the key should be pressed and held for 1 second or longer.

Key layout

■

TEL/

TI/AUTO

PLAY/PAUSE

How to enter the test mode

■

Procedure Note

Reset while [SEARCH] and [SRC] keys are being pressed. While “– – – –” is displayed, power can be turned ON.

FM+

AUD

AM–

←

RESET

All lamps blink when it is detected that the sub-clock resonator is disconnected.

When having started up in the test mode, change the LINE MUTE inhibition time from 10 seconds to 1 second.

When operating in the test mode, even if a DC offset error occurs, detection information is not written in the E2PROM.

When operating in the test mode, CD mechanism error log information clear mode, and DC offset error detection information

clear mode, do not perform DEMO mode operations.

Also, do not display DEMO ON/OFF option items in the MENU in STANDBY source in the above modes.

In the test mode the forced disc ejection is prohibited to shorten the period of activation during the test mode transition opera-

tion.

How to clear the test mode

■

Procedure Note

Reset, momentary power down, ACC OFF, POWER OFF, Panel detached. Clearing the test mode

Test mode default condition

■

Description Default values

Source STANDBY

Display Display lights are all turned on.

Volume -10dB (“30” is displayed.)

Bass Boost OFF

CRSC OFF regardless of having/not having the switching function.

AUX ON1

KDC-BT6544U/BT6544UY /BT7043U/BT742U

TEST MODE

Description Default values

System Q/dB EQ NATURAL (FLAT)

Simple DSP STANDBY (FLAT)

Simple DSP BYPASS (Set up the path that does not go through the DSP)

Beep Goes on (i.e., beeps) when the key is pressed brieﬂ y

Preout Rear

Test mode speciﬁ cation in Standby source

■

Key Description of display Description

Common

■

AUD

■

FAV

All lights ON.

S: R0001M:R0001

ROM correction

version display

Audio data

initialization

Forced Power

OFF information

display

Information display

iPod authentica-

tion IC installation

status display

CD information

display mode

ON/OFF

FNC operation Multi-function operation (Normal operation)

Version & service

information

display

S:ERR M:ERR

S:R––––M:R––––

S:R

AUDIO INIT

POF F – – –

POF F PNL

Move to CD information display mode (sub-mode)

Clear entire CD information

Move to Version and service information display

(Sub-mode)

÷÷÷÷÷÷÷

System μ-com Mecha μ-com

∗∗∗∗

iPod:

iPod:OK

iPod:NG

M:R

∗∗∗∗

All lights ON.

* Red dot lines also go ON.

Figures are ROM correction version number.

In the case when E2PROM is not installed.

In the case when correnction data is not yet written.

In the case when the correction data is incompatible

(Version of data is incompatible)

AUDIO setting value is re-set to the test mode default

value.

No forced power OFF

Forced power OFF by communication error between

system μ-com and panel.

While the forced power OFF data is displayed, press and

hold for 2 seconds to clear the data.

iPod authentication IC installation condition display.

Blank: Checking if the IC is installed

OK: IC is being installed, NG: IC is not yet installed

(Press the key while the display is what is shown in the left

column to return to the normal display)

* Refer to “CD information display mode” for the contents

and operation of the display.

While in CD information display mode, press and hold for

2 seconds or longer to clear all CD information.

* Refer to “Version and service information display” for the

contents and operation of the display.

KDC-BT6544U/BT6544UY /BT7043U/BT742U

TEST MODE

• Version and service information display (Sub-mode)

* When “Version and service information display” is selected, “Destination terminal condition display” will be opened as default

display.

Key Description of display Description

(forward)

↑

↓

(reverse)

■

FAV

Destination

terminal

condition

indication

Development

ID condition

indication

Serial No.

display

Power ON

time display

Disc opera-

tion time dis-

play

Disc EJECT

times display

Panel open/

close times

display

T Y P E 2:1 T Y P E 1:1

C0857WE2 – 3.00

SNO 00000000

PONT I M 0 HX X

PONT I M XXXXX

CDT I M 0HX X

CDT IM XXXXX

EJECNT XXXXX

PNCNT XXXXX

“TYPE” indicates system μ-com (IC302) destination,

and shows real-time condition of the destination

terminal.

Development ID – Version (system μ-com: IC302)

Serial No. is displayed (8 digits)

00~50 is displayed for “XX”. When less than 1 hour,

displayed by increments of 10 minutes.

00001~10922 is displayed for “XXXXX”.

MAX 10922 (hours)

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

seconds or longer to clear Power ON time.

00~50 is displayed for “XX”. When less than 1 hour,

displayed by increments of 10 minutes.

00001~10922 is displayed for “XXXXX”.

MAX 10922 (hours)

While the disc operation time is displayed, press and

hold for 2 seconds or longer to clear the disc operation

time. (Cleared only for displayed media.)

Disc EJECT times display. MAX 65535 (times)

While disc EJECT times is displayed, press and hold for

2 seconds or longer to clear disc EJECT times.

PANEL open/close times display. MAX 65535 (times)

Press the key for more than 2 seconds while the PANEL

open/close count is displayed and PANEL open/close

count is cleared.

KDC-BT6544U/BT6544UY /BT7043U/BT742U

• CD information display mode (Sub-mode)

Key Description of display Description

MECH A ERR 1 :X X

CD mecha-

(forward)

↑

↓

(reverse)

nism error

log display

CD Load

error

information

display

CD Ejec-

tion error

information

display

CD time

code error

count data

display

(Missing

counts)

CD time

code error

count data

display

(count not

updated)

MECH A ERR 2 :X X

MECH A ERR 3 :X X

LOAD ERR1 :X X

LOAD ERR2 :X X

EJECT ERR1 :XX

EJECT ERR2 :XX

EJECT ERR3 :XX

EJECT ERR4 :XX

CNT LOS E

CDDA :X X

CDROM :XX

CNT STAY

CDDA :X X

CDROM :XX

TEST MODE

Mechanism error log 1 (Latest)

XX: Error number. “– –” is displayed in case there is no

error.

Mechanism error log 2 (Latest)

XX: Error number. “– –” is displayed in case there is no

error.

Mechanism error log 3 (Latest)

XX: Error number. “– –” is displayed in case there is no

error.

Load error switch 1

XX: Number of errors. “– –” is displayed in case there is

no error.

Load error switch 2

XX: Number of errors. “– –” is displayed in case there is

no error.

Ejection error switch 1

XX: Number of errors. “– –” is displayed in case there is

no error.

Ejection error switch 2

XX: Number of errors. “– –” is displayed in case there is

no error.

Ejection error switch 3

XX: Number of errors. “– –” is displayed in case there is

no error.

Ejection error switch 4

XX: Number of errors. “– –” is displayed in case there is

no error.

CD time code error count data (Missing counts) mode

display.

Number of CD-DA count errors

XX: Number of errors. “– –” is displayed in case there is

no error.

CD-ROM (Compressed ﬁ le) number of count errors

XX: Number of errors. “– –” is displayed in case there is

no error.

CD time code error count data (count not updated)

mode display.

Number of CD-DA count errors

XX: Number of errors. “– –” is displayed in case there is

no error.

CD-ROM (Compressed ﬁ le) number of count errors

XX: Number of errors. “– –” is displayed in case there is

no error.

KDC-BT6544U/BT6544UY /BT7043U/BT742U

TEST MODE

Test mode speciﬁ cations in TUNER source

■

Error is found in front-end (A1), etc. if indications below is displayed while in tuner source.

Status Display Description

Front-end (A48x) E2PROM data

error

Front-end (A48x) communication

error

Destination mismatch

TNE2P NG

TNCON NG

TNTYP NG

• TUNER preset operation

Key Display Description

FAV Preset function

■

F M # 9 8.3 A :4

• K3I forced switching

Every time when [FAV] key is pressed in tuner FM source, switched in the following order: AUTO → Forced WIDE → Forced

MIDDLE → Forced NARROW → AUTO. Default status is AUTO, and displayed as shown below.

Key Display Description

FM1 98.1 A :

FAV K3I Forced switching

M1 98.1W

FM1 98.1M :

F M 1 9 8.1 N :

Front-end (A48x) E2PROM is still the default

(unspeciﬁ ed) value.

Communication with front-end (A48x) is not

possible.

When destination is mismatch between front-end

(A48x) E2PROM and the product.

Change to 98.3MHz.

AUTO

Forced WIDE

Forced MIDDLE

Forced NARROW

• RDS automatic measurement (Only models with RDS)

Add this measurement instead of the visual inspection of PS display that has been used in the production line.

Status Display Description

When the display is what is shown in the left col-

PS data reception

FM1 RDS T E S T:

umn, forcibly turn off.

P-CON returns when the power is turned off/on

(POWER OFF/ON).

KDC-BT6544U/BT6544UY /BT7043U/BT742U

TEST MODE

• FST adjustment mode

Perform FST soft-mute adjustment.

Key Note

■

Operations in the FST adjustment mode are as follows:

Key Description of display Description

(UP)

↑

↓

(DOWN)

■

Switch Local Seek ON or OFF by brieﬂ y pressing [TEL/AUTO/TI] key when the Local Seek ON/OFF switching is allowed in the

band.

After completing the FST adjustment, if you wish to clear the test mode, you can do this using the reset button.

To enter into FST adjustment mode (Press and hold the key for 1 second)

In FM, the frequency changes to 98.3MHz

/ Soft-mute

adjustment

Seek Stop Level

adjustment (Auto)

Seek Stop Level

adjustment (Auto)

/ Seek Stop Level

adjustment (Manual)

/ Seek Stop Level

adjustment (Manual)

Adjustment value

memory

Mode clear

SMD – F

ATN V

ATL V

MNN V

MN L V

EP WRI TE

F M 1 9 8.3 A :4

0 ↔ 7

0.00 (V) ↔ 5.00 (V). Normal (Local OFF)

0.00 (V) ↔ 5.00 (V). Normal (Local ON)

0.00 (V) ↔ 5.00 (V). Normal (Local OFF)

0.00 (V) ↔ 5.00 (V). Normal (Local ON)

Displays the data that has been written in the

E2PROM when pressing the key for 2 seconds or

longer.

Clear the FST adjustment mode. (Returns to

normal display and the test mode is retained.)

KDC-BT6544U/BT6544UY /BT7043U/BT742U

TEST MODE

Test mode speciﬁ cations in CD source

■

Display mode default: P-Time

• Procedure in CD-DA media (KTD-02A)

Key Display Description

Every time pressed, jumps to the track shown below.

No.9 → No.15 → No.10 → No.11 → No.12 → No.13 → No.22

FAV

TEL/TI/

AUTO

Track up procedure

Track down procedure Goes down by 1 track from the currently played track.

Jump operation and

Mechanism version

display

Jump operation

Jump operation and Mechanism version

display (Sub-mode)

Jump operation

* Toggling of jumping between tracks No. 9

and No. 22 (No.9 ↔ No.22)

No.14 → No.9 (recursive)

→

But in case the disc has 8 tracks or less, playback starts with

track No.1. (For both CD-DA and compressed ﬁ le discs)

* Refer to “Jump operation and Mechanism version display” for

contents and operation of the display.

Jump to No. 9 when the track of No. 22 is being played back.

Jump to No. 22 when the track of No. 9 is being played back.

• Jump operation and Mechanism version display (Sub-mode)

* When operating the jump operation of the track while the mechanism information in this sub-mode, the track number is dis-

played for the speciﬁ c period of time (prior to any other information) and then the mechanism information is displayed again.

Key Display Description

FAV

TEL/TI/

AUTO

Jump operation

Information display

Mechanism μ-com

version

Information display

Mechanism servo

version

Information display

Mechanism boot

program version

Jump operation

This operation is operational only in the “Jump

operation and Mechanism version display” during

CD source.

This operation is operational only in the “Jump

operation and Mechanism version display” during

CD source.

9B30:

SERV:

BOOT:

This operation is operational only in the “Jump

operation and Mechanism version display” during

CD source.

Jump to No. 28. (Scratch 0.7mm for MUSIC line vibration

testing)

Jump to No. 14. (Disc whose surface is not perfectly ﬂ at:

TCD-731RA Tr14)

Display of Mechanism model name and Mechanism ver-

sion (Pressing the key while the indication in the left cell

is shown is to change to the mechanism servo version

display.)

Mechanism servo table version display (Pressing the key

while the indication in the left cell is shown is to change

to the mechanism boot program version display.)

Mechanism boot program version display (Pressing the

key while the indication in the left cell is shown is to

change to the normal display.)

Jump to No.15.

Set the volume value to 25. (For 20Hz 0dB DC protection

error operation FCT checking)

• Operations with the compressed media

Key Display

File format display (MP3)

File format display (WMA)

File format display (AAC)

MP 3

WM A

AAC

Description

Display ﬁ le format just before the start of ﬁ le play

back.

KDC-BT6544U/BT6544UY /BT7043U/BT742U

TEST MODE

Audio-related test mode

■

Procedure Note

Enter the audio adjustment mode (The default items shown are different from model with DSP to model without DSP)

[Model with DSP] (Destination “K” and “E”)

When DUAL ZONE is ON: BYPASS→DUAL ZONE→FADER→BALANCE→R-VOLUME→V-OFFSET

When DUAL ZONE is OFF: BYPASS→DUAL ZONE→FADER→BALANCE→SUB-W→V-OFFSET

TEL/TI/AUTO

■

About audio adjustment items (include both Audio Function Mode and Audio Setup Mode)

Procedure Item Procedure Description

For item

forwarding

procedure,

press [AUD]

key and

[FM] key

For item

forwarding

procedure,

press [AUD]

key and

[FM] key

*1: Display the settings for “BYPASS ON/OFF” in the AUDIO adjustment mode of the test mode to enable the selection opera-

tion. These settings are same as the BYPASS settings of DSP setting in the multi-function.

[Model without DSP] (Destination “M”)

When DUAL ZONE is ON: DUAL ZONE→FADER→BALANCE→BASS→MID→TRE→R-VOLUME→B.BOOST

USER→HPF-F→HPF-R→V-OFFSET

When DUAL ZONE is OFF: DUAL ZONE→FADER→BALANCE→BASS→MID→TRE→SUB-W→B.BOOST

USER→HPF-F→HPF-R→LPF-SW→V-OFFSET

BYPASS *1 (Only in model with

DSP)

Dual Zone [VOL] knob and [

Fader [VOL] knob and [

Balance [VOL] knob and [

R-VOLUME [VOL] knob and [

Bass Level [VOL] knob and [

Middle Level [VOL] knob and [

Treble Level [VOL] knob and [

HPF Front (KDC-BT7043U only) [VOL] knob and [

HPF Rear (KDC-BT7043U only) [VOL] knob and [

LPF Subwoofer [VOL] knob and [

LPF Subwoofer Phase

(KDC-BT7043U only)

Volume Offset [VOL] knob and [

Bass BOOST [VOL] knob and [

[VOL] knob and [

/ ] key BYPASS ↔ THROUGH (Default value: BYPASS)

/ ] key Adjust to 2 steps of OFF ↔ ON. (Default value: OFF)

/ ] key Adjust to 3 steps of R15 ↔ 0 ↔ F15. (Default value: 0)

/ ] key Adjust to 3 steps of L15 ↔ 0 ↔ R15. (Default value: 0)

/ ] key Adjust to 2 steps of 0 ↔ 35. (Default value: 35)

/ ] key Adjust to 3 steps of -8 ↔ 0 ↔ +8. (Default value 0)

/ ] key

/ ] key Adjust to 2 steps of -8 ↔ 0 . (Default value 0)

/ ] key Adjust to 2 steps of OFF ↔ ON . (Default value OFF)

Adjust to 2 steps of Through ↔ 180Hz.

(Default value: Through)

Adjust to 2 steps of Through ↔ 180Hz.

(Default value: Through)

Adjust to 2 steps of 60Hz ↔ Through.

(Default value: Through)

Adjust to 2 steps of Normal ↔ Reverse.

(Default value: Normal)

→

[ATT] key operation

■

Procedure Note

Press [

MENU-related test mode

■

] key brieﬂ y in the Tuner source. ATT OFF/ON

* In the TUNER source, run the unit in the normal operation (PRESET call operation) mode.

Procedure Note

Press [SEARCH] key brieﬂ y (Unit itself)

Press [DNPP/SBF] key and [DIRECT] key brieﬂ y (Remote controller)

Continuous forwarding by remote control is prohibited

+ 36 hidden pages