Kenwood KD-CU-546-BT, KD-CBT-645-U, KD-CBT-40-U Service Manual

CD RECEIVER

KDC-BT40U/BT645U KDC-U546BT

SERVICE MANUAL

Panel assy KDC-BT40U (A64-5015-02)

Bluetooth

Panel assy KDC-U546BT (A64-5017-02)

Bluetooth

Mounting hardware assy (J22-0789-03)

KDC-BT40U

KDC-U546BT

Escutcheon (B07-3271-01)

TDF SPARE-PANEL

MAIN UNIT NAME TDF PARTS No. TDF NAME KDC-BT40U Y33-3272-72 TDF-BT40U KDC-BT645U Y33-3270-10 TDF-BT06D KDC-U546BT Y33-3270-21 TDF-U546BT

* Carrying case (W01-1710-05)

Panel assy KDC-BT645U (A64-5013-02)

KDC-BT645U

Bluetooth

* Remote controller assy (RC-405) (A70-2104-05)

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

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

* Screw set (N99-1757-15)

* DC cord (E30-6934-05)

Lever (D10-7106-04) x2

* DC cord (E30-6933-05)

This product complies with the

* Plastic cabinet assy (A02-2755-23)

This product uses Lead Free solder.

RoHS directive for the European market.

KDC-BT40U/BT645U KDC-U546BT

BLOCK DIAGRAM

ELECTRIC UNIT (X34- )

ANT.

IC501

TUNER

(ATOMIC)

SW5

∗

IC7

RDS DECODER

IC1

IC8

RESET IC

BU5

OEM REMOTE

RESET

FRONT AUX

REMOTE

to GND

ROTARY ENCODER

PAN SW5

PANEL DET

IC2

SWITCH UNIT (X16- )

A8V

∗

LX-BUS

IC2

E-VOL

SYSTEM u-COM

111

Q301

PANEL5V

USB5V

SW5

USB CN

ED1

MUTE

BU5

CONNECTOR

PANEL5V

ILLUMI+B

R15

FL+B

1/2W Rx1

1/2W Rx2

FL+B

R31,32

KEY MATRIX

BU5

KEY ILLUMI

DME1

CD MECHA

SERVO+B

CN1

BT MIC CN

Q104,105

IC6

POWER IC

Q707

PRE MUTE

MUTE

IC900

LPF

Q902

LEVEL SHIFT

BU5

Q701-706

PRE-OUT

FRONT REAR REAR/SW

BU DET

RESET

DC-CN etc

PHONE ACC-DET / BU-DET PS1-1 / PS1-2 PS1-3 / PS2-1

A8V

A900

BLUETOOTH MODULE

BT3.3V

USB5V

FL+B

ACC DET

PS1-1 / PS1-2 PS1-3 / PS2-1

SW5

A8V

SW5

BU5V

ILLUMI+B

SERVO+B

IC901

BT3.3V

∗

IC52

HI-SIDE SW

PHONE

BU DET

P-STBY

R118

Q101

ACC DET

Q103

Q102

IC4

POWER SUPPLY IC

Q2,3

Q11,12

DC/DC5V

PHONE

BU DET

SURGE DET

CD SERVO

SW14V

IC51

SW5

BU5

SW5V

DC-CN

PHONE

SP-OUT FRONT L/R REAR L/R

ACC

P-ANT P-CON

DPU1

ACB

FO COIL

TR COIL

DM1

SPINDLE MOTOR

DM2

LOADING & SLED MOTOR

CD PLAYER UNIT (X32-6260-01)

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

DVSS

BU1.5V

SW1.5V

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

MECHANISM u-COM

DVCC3A

PWE

RVIN1/RVIN2

PON

DVSS

SW3.3V REG

CLOCK

9.000MHzX132.768kHz

CLOCK

USB VBUS SW

CD LOE LIM SW

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

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

INV

AGND

LOS SW

12EJE SW

LOE SW

LO/EJ

MOTOR

S7.5V

S.GND

KDC-BT40U/BT645U KDC-U546BT

COMPONENTS DESCRIPTION

SWITCH UNIT (X16-678x-xx)

●

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

IC2 Remote Control Sensor

Q20 Key Scan Timing Adjust When the base is Hi, key scan starts.

Q21 Grid Reversing Driver When the base is Hi, GRID1 is ON.

Q22 Grid Reversing Driver When the base is Hi, GRID2 is ON.

Q23 Grid Reversing Driver When the base is Hi, GRID3 is ON

ELECTRIC UNIT (X34-662x-xx)

●

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

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

IC2 E-VOL Controls the source, volume and tone.

IC4 Power Supply IC Outputs 5Vx2, 8.3V, 10.2V, P-CON and P-ANT.

IC6 Power IC Ampliﬁ es the front L/R and the rear L/R to 50W maximum.

IC7 RDS IC RDS decoder.

IC8 Reset IC Lo when detection voltage goes below 3.6V.

IC51 SW REG Power supply for D+5.1V. (to USB and panel)

IC52 Hi-side SW Detection of USB over-current.

IC501 Tuner IC (ATomIC) Tuner IC.

IC900 LPF Bluetooth outputs low pass ﬁ lter.

IC901 D+3.3V AVR IC Power supply for BT+3.3V.

Q2,3 Servo+B AVR When Q3'base goes Hi, AVR outputs 7.5V.

Q11,12 Control SW for Servo+B ON when the base goes Hi.

Q13 Control SW for IC4 ON when the base goes Hi.

Q14 Control SW for IC4 ON when the base goes Lo.

Q53 FREQ CONT SW for IC51

Q101 ACC DET ON when the base goes Hi during ACC is applied.

Q102 Surge DET When the base goes Hi, surge voltage is detected.

Q103 BU DET ON when the base goes Hi during BU is applied.

Q104,105 Mute Control ON when the base goes Hi.

Q301 Panel 5V SW ON when the base goes Lo.

Q707~706 Pre-out Mute SW When a base goes Hi, Pre-out is muted.

Q707 Mute Driver for Pre-out ON when the base goes Lo.

Q901 BT Module Reset Control When the base goes Hi, BT module is reset.

Q902 Level Shift (5V→3.3V) Dual FET.

When the base goes Lo, switching frequency becomes 1.3MHz.

When the base goes Hi, switching frequency becomes 1.8MHz.

CD PLAYER UNIT (X32-6260-01)

●

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

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.

KDC-BT40U/BT645U KDC-U546BT

COMPONENTS DESCRIPTION

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

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 (Not used)

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 Elec-

tricity

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 malfunc-

tion by static electricity is prevented.

KDC-BT40U/BT645U KDC-U546BT

MICROCOMPUTER’S TERMINAL DESCRIPTION

SYSTEM μ-COM : IC1 on X34- (ELECTRIC UNIT)

●

Truth Value

Pin No. Pin Name I/O Application

1~3 NC - Not used Output L ﬁ xed

4 REMO I Remote control input Detects pulse width

5 NC - Not used Output L ﬁ xed

6 BYTE - Setting of memory extension bus Connects to VSS

7 CNVSS -

8 XCIN - 32.768kHz

9 XCOUT - 32.768kHz

10 RESET - L: Reset

11 XOUT - 16.0MHz

12 VSS -

13 XIN - 16.0MHz

14 VCC1 -

15 NC - Not used Output L ﬁ xed

16 LX REQ S I Communication request from slave unit

17 RDS CLK I RDS decoder clock input

18 PANEL DET I Panel communication detection H: Panel detached, L: Panel attached

19~22 NC - Not used Output L ﬁ xed

23 RDS QUAL I RDS decoder qualiﬁ cation input

24 F SYNC - Not used Output L ﬁ xed

25 RDS DATA I RDS decoder data input

26 BEEP O Beep output 2kHz / 1kHz

27 TUN SCL I/O ATOMIC I2C clock output

28 TUN SDA I/O ATOMIC I2C data input/output

29 VFD SYS DATA O VFD data output

30 VFD PAN DATA I VFD data input

31 VFD CL O VFD clock output 125kHz

32 VFD BLK O VFD driver reset output

33 BT SYS DATA O Data output to Bluetooth

34 BT BT DATA I Data input from Bluetooth

35 NC - Not used Output L ﬁ xed

36 ROTARY CW I VOL encoder input Detects pulse width

37 ROTARY CCW I VOL encoder input Detects pulse width

38 PON PANEL

39 EPM I Flash ROM EPM input

39 ROMCOR DET I E2PROM writing request H: Writing

40~43 NC - Not used Output L ﬁ xed

44 VFD CE O VFD control request

45 S SYS DATA O Serial output to Bolero

46 S SOC DATA I Serial input from Bolero

I/O Panel 5V control

Table

Processing / Operation / Description

Connects to VSS

H: Rewritable (Only when ﬂ ash ROM is used)

Communication begins after 500ms after VFD_BLK

becomes Hi.

H: Reset canceled, L: Reset, Momentary power-down

or panel detached or 11 minutes after ACC OFF: L

ON: L, Momentary power-down or panel detached or

11 minutes after ACC OFF: Hi-Z

L: Rewritable (Only when ﬂ ash ROM is used)

Connects to VSS

KDC-BT40U/BT645U KDC-U546BT

MICROCOMPUTER’S TERMINAL DESCRIPTION

Truth Value

Pin No. Pin Name I/O Application

47 S SOC CLK I Serial clock input from Bolero

48 NC - Not used Output L ﬁ xed

49 S SOC REQ I

50 CD LOS SW I CD loading detection

51 CD DISC12 SW I 12cm disc detection

52 SOC MUTE I SOC mute request L: Mute request, H: Normal

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

53 SOC RST O SOC reset H: Normal, L: Reset

54 S SYS REQ O

55 NC - Not used Output L ﬁ xed

56 CD MOTOR O CD motor control

57 CD LOEJ I/O CD motor control

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

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

60 VCC2 -

61 NC - Not used Output L ﬁ xed

62 VSS -

63~65 NC - Not used Output L ﬁ xed

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

67 PON FL O Key illumination power supply control H: ON, L: OFF

68 PS1 1 O Power supply IC control

69 PS1 2 O Power supply IC control

70 PS1 3 O Power supply IC control

71 PS2 1 O Power supply IC control

72 NC (PS2 2) - Not used Output L ﬁ xed

73 BU DET I Momentary power-down detection BU found: L, No BU or momentary power-down: H

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

75 AUD SDA I/O I2C data input/output MAX 400kHz

76 AUD SCL I/O I2C clock input/output MAX 400kHz

77 NC - Not used Output L ﬁ xed

78 FSEL O SW-REG frequency SW H: 2.04MHz, L: 1.68MHz

79 PON SWREG O SW-REG ON/OFF H: ON, L: OFF

80 LINE MUTE I Line mute detection Normal: Below 2.5V, NAVI mute: Over 2.5V

81 TYPE 1 I Destination SW

82 NC (TYPE 2) - Not used Output L ﬁ xed

83 PWIC DC ERR I

84 AUD DC ERR I DC offset detection

85 TUN SMETER I S-meter input

86 NC - Not used Output L ﬁ xed

Communication request from mecha-

nism to system μ-com

Communication request from system

μ-com to mechanism

Detection of power IC short-circuited

+B/GND

Table

Processing / Operation / Description

Refer to the truth value table

If DC offset is detected 20 times in 100ms with

condition below 1.0V, it will be judged as DC offset is

detected.

KDC-BT40U/BT645U KDC-U546BT

MICROCOMPUTER’S TERMINAL DESCRIPTION

Truth Value

Pin No. Pin Name I/O Application

87 PWIC MUTE O Power IC mute

88 NC - Not used Output L ﬁ xed

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

90 MUTE I/O Mute L: Mute OFF, Hi-Z: Mute ON

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

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

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

94 AVSS -

95 LX REQ M O Communication request to slave unit

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

Table

Processing / Operation / Description

STANDBY source or momentary power-down: L,

TEL mute: L

• Truth value table

CD motor control

CD MOTOR (Pin 56) CD LOEJ (Pin 57)

Stop L L

Load H L

Eject H H

Brake H Hi-z

Power supply IC (IC4) control

SEL1 (Pin 10)

PS1-2 PS1-3 PS2-1 ILLUMI P-CON P-ANT

L L L OFF OFF OFF

L L H ON OFF OFF

H L H ON ON OFF

HHHONONON

SEL2 (Pin 11)

PS1-1 PS2-2

L L OFF OFF

H L ON OFF

H H ON ON

AUDIO/SW5

KDC-BT40U/BT645U KDC-U546BT

TEST MODE

Example

■

Key Description of display Description

÷÷÷÷÷÷÷

A symbol “■” in the key column indicates that the key should be pressed and held.

Key Description of display Description

■

Disc Eject times

display

EJCNT :XXXXX

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.

SRC

BAND

RETURN

How to enter the Test mode

■

Procedure Note

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

All lamps blinks 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.

In the Test mode, do not write the detection information in the Data Flash ROM even if a DC Offset Error is detected.

Do not operate the DEMO mode in the Test mode, CD Mechanism Error Log Information Clear Mode, or DC Offset Error Detection Information

Clear Mode.

Also, when the source is STANDBY in the above mode, do not display DEMO ON/OFF switching items in the FUNCTION.

In the Test mode, the forced disc ejection operation is prohibited.

VOICE

EJECT

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.

VOL -10dB (“30” is displayed.)

KDC-BT40U/BT645U KDC-U546BT

TEST MODE

Description Default values

BASS BOOST OFF

AUX ON1

SystemQ / dB EQ NATURAL (FLAT)

BEEP Beeps when the key is pressed brieﬂ y.

PREOUT REAR

Test mode speciﬁ cation in STANDBY source

■

Key Description of display Description

Common

(forward

rotation)

BAND

All lights ON.

System μ-com

version display

BT module version

display

Mechanism model

name and mecha-

nism version display

Design version

display mode

■

ON/OFF

2 Serial No. display

Power ON time

display

DISC operation

times

display

DISC EJECT times

display

■

Data Flash ROM

writing-in times

display

ROM correction

version display

Design version information display mode

(sub-mode) ON/OFF

SR0001 MR0001

SR–––– MR––––

÷÷÷÷÷÷÷

SYS0 1–3.00

BT :HXXXSXXX

9B30:

SN :00000000

PONTM :0 HXX

PONTM :XXXXX

CDTM :0H XX

CDTM :XXXXX

JCNT :XXXXX

DFCNT :XXXXX

∗∗∗∗

All lights ON.

System μ-com version display

BT module version display

Mechanism model name and mechanism version display

Press and hold this key for 1 second to display the design

version information.

Refer to “Design version information display mode” for the

∗

details of display and operation procedure.

Serial No. displayed (8 digits)

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

displayed by increments of 10 minutes.

The 00001-10922 is displayed for “xxxxx”. MAX 10922 (hours)

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

displayed by increments of 10 minutes.

The 00001-10922 is displayed for "XXXXX". MAX 10922

(hours)

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.

The number of data writing-in the Data Flash ROM is

displayed. MAX 10000 (times)

The number is the ROM correction version number.

When not written in yet.

When data not matched

Due to the difference in versions.

∗

KDC-BT40U/BT645U KDC-U546BT

Key Description of display Description

(The display blinks)

SEARCH I NG

BAND BT device search

■



■

Audio data

initialization

Clear the BT related

memory information



XXXXXXXXXXXXX

UNKNOWN

AUD I O I N I T

INITIALIZE

BT INIT :OK

BT INIT :NG

TEST MODE

Press and hold this key for 1 second to initiate the BT device

search.

The search is terminated when 1 device is found.

When a device is found after the search, the name of that

device is displayed.

Only when no device is found after the search, press the

[ROTARY] key brieﬂ y to re-initiate the search.

After the completion of the search, press and hold the [BAND]

key for 1 second to exit from the test mode.

Audio setting value is re-set to the Test mode default value.

Press and hold this key for 2 seconds.

The character string as shown in the left cell is displayed

while the BT related memory is being initialized.

This is to initialize the BT related memory to its factory de-

fault condition.

When the initialization is successfully completed, “OK” (up-

per) is displayed, and when the initialization is abnormally

completed, “NG” (lower) is displayed.

POFF –––



■

VOICE

VOICE Clear all of the CD information

■

RETURN

*1: This is a function to clear the information recorded in the ﬂ ash memory, to clear the data ﬂ ash ROM that has BT memory information to be

• Factory default condition

· To clear the pairing information (in the ﬂ ash memory of the BT module)

· To clear the preset telephone numbers (in the data ﬂ ash ROM)

· To write “KENWOOD BT CD/R-3P2” in the friendly name (in the ﬂ ash memory of the BT module)

· To write “0000” in the PIN code (in the ﬂ ash memory of the BT module)

Forced Power OFF

information display

POF F PNL



Transition to the CD information

CD information

display mode

ON/OFF

Information display

iPod authentication

IC installation

condition display

Preout switching

All lights ON /

All lights OFF

initialized with the “Data ﬂ ash ROM clear” function, and to write the speciﬁ c values in the ROM to initialize it to its factory default condition.

display mode (sub-mode)

iPod :

iPod :OK

iPod :NG

iPod :

SWPRE REAR

SWP RE SU B –W

÷÷÷÷÷÷÷

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.

Refer to “CD information display mode” for the details of

∗

display and operation procedure. Press [VOICE] key brieﬂ y.

Press and hold this key for 2 seconds in the CD information

display mode to clear all of the CD information.

Press and hold the [VOICE] key.

iPod authentication IC installation condition display

When the display in the left cell is shown, press this key to

return to the normal display.

Blank: Searching and deciding the present status.

OK: Authentication IC has been installed.

NG: This is the iPod compatible model, but the

∗∗

authentication IC is not yet installed.

: This is not the iPod compatible model.

∗ ∗

Pressing and holding this key for 1 second switches the

preout.

Switch from “All lights ON” to “All lights OFF” and vice

versa.

KDC-BT40U/BT645U KDC-U546BT

TEST MODE

• CD information display mode (sub-mode)

Key Key Description of display Description

Mechanism error log 1 (Latest)

BAND

(forward

rotation)

CD mechanism error



/

log display

CD load error



information display



CD ejection error



information display



CD time code error

count information



display (Missing



counts)

CD time code error

count information



display (Count is not



updated.)

MECH A ER 1 :X X

MECH A ER 2 :X X

MECH A ER 3 :X X

LOAD ER1 :XX

LOAD ER2 :XX

EJ ECT ER1 :XX

EJ ECT ER2 :XX

EJ ECT ER3 :XX

EJ ECT ER4 :XX

CNT L OSE

CDDA :XX

CDROM :X X

CNT STAY

CDDA :XX

CDROM :X X

XX: Error number. The “--” is displayed in case there

is no error.

Mechanism error log 2 (Latest)

XX: Error number. The “--” is displayed in case there

is no error.

Mechanism error log 3 (Latest)

XX: Error number. The “--” is displayed in case there

is no error.

Load error switch 1

XX: The number of errors. The “--” is displayed in

case there is no error.

Load error switch 2

XX: The number of errors. The “--” is displayed in

case there is no error.

Ejection error switch 1

XX: The number of errors. The “--” is displayed in

case there is no error.

Ejection error switch 2

XX: The number of errors. The “--” is displayed in

case there is no error.

Ejection error switch 3

XX: The number of errors. The “--” is displayed in

case there is no error.

Ejection error switch 4

XX: The number of errors. The “--” is displayed in

case there is no error.

CD time code error count information (Missing

counts) mode is display.

Number of CD-DA error counts

XX: The number of errors. The “--” is displayed in

case there is no error.

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

XX: The number of errors. The “--” is displayed in

case there is no error.

CD time code error count information

(Count is not updated) mode display.

Number of CD-DA error counts

XX: The number of errors. The “--” is displayed in

case there is no error.

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

XX: The number of errors. The “--” is displayed in

case there is no error.

KDC-BT40U/BT645U KDC-U546BT

TEST MODE

• Design version information display mode (sub-mode)

Key Description of display Description

Destination terminal

condition display

BAND

(forward

rotation)

Test mode in Tuner source

■

If the following display is shown when the source is TUNER, it indicates an error.

TUNER IC

communication error

The adjustment is not

yet made.

Development ID

condition display

BT module address

BT module PIN code

Status Description of display Description

TYPE21 :1 1

0928WE2 –3.00

BTAD

PIN :

TUN CON NG

ERR

∗

A 9 8.3 A

TYPE indicates μ-com destination, and indicates condition

of the destination terminal in real-time.

Development code - Version (system μ-com)

BT module address information display (in 12 digits)

(The display scrolls to display all of the digits)

BT module PIN code display

This display indicates the status in which the communication with

TUNER IC is not possible.

This display indicates the status in which the TUNER adjustment

has never been made (Adjustment value: 0X00 or 0XFF)

However the following TUNER test mode functions are valid (Note

that the display, “∗ERR∗” remains as it is.)

• TUNER band switching operation

Key Description of display Description

BAND

MODEL (KDC-) BAND1 BAND2 BAND3 BAND4 BAND5 BAND6 Description

BAND switching

operation

BT645U

BT40U

U546BT

FM1–4 A 98.3A

FM1 FM2 FM3

AM – –

MW/LW – –

Every time when the [BAND] key is pressed, the BAND is

switched as listed in the next table for each TYPE.

→

SW1

SW2

→ w → e →

• Switch in injection setting / packs setting

In the TUNER FM source, every time the [5] key is pressed and held for 1 second the injection setting switches in the following sequence of

order: AUTO → H → L → AUTO.

In the TUNER FM source, every time the [6] key is pressed and held for 1 second the packs setting switches in the following sequence of order:

AUTO → 1 → 2 → . . . 7 → AUTO.

In both settings, the default condition is AUTO, which is displayed as shown in the next table.

Key Description of display Description

■

Injection setting

switching

Packs setting

switching

FM1–4 A 98.1A

FM1–4 A 98.1H

FM1 – 4 A 9 8.1 L

FM1–4 A 98.1A

FM1–4 7 98.1A

A: Injection setting AUTO

H: Injection setting H

L: Injection setting L

A: Packs setting AUTO

X: Packs setting 1~7

KDC-BT40U/BT645U KDC-U546BT

TEST MODE

• TUNER setting adjustment mode

This mode is to adjust TUNER setting.

Key Note

Press this key to change the mode to the TUNER setting adjustment (Press and hold the key for 1 second).

VOICE

■

Procedures in the TUNER setting adjustment mode are as follows:

• Adjustment mode switching (AUTO/MANUAL)

■

(forward

rotation)

When the source is FM, frequency is switched to 98.3MHz at the start of the adjustment mode.

Press and hold the [VOICE] key.

Key Description of display Description

Level Offset

adjustment (Auto)

BAND

Level Offset

adjustment (Manual)

A S–XX L–XX

M S–XX L –XX

Press and hold the [BAND] key for 1 second to select the

TUNER adjustment method (A: AUTO / M: MANUAL).

S-XX → Present S meter value (HeX)

L-XX → Level offset value (HeX)

When the level offset value is not yet adjusted (0XFF or

∗

0X00), “--” is displayed.

• Procedure in the AUTO adjustment mode

Key Description of display Description

ROTARY

RETURN

In automatic

adjustment

Completion of

automatic adjustment

Save the adjustment

value.

Failure of the

automatic adjustment

Cannot save the

adjustment value.

Save the failed value

(0XFF).

Mode clear

A S–XX L–XX

ADJ OK :XX

(Level offset value)

ADJ NG

FM1–4 A 97.9A

ERR

∗

A97.9A

Press this key brieﬂ y to start the automatic adjustment.

After the completion of the automatic adjustment, save the

level offset value in the Data Flash ROM and display the

resultant level offset value (HeX).

Display shown when the automatic adjustment failed

(Write OXFF in the Data Flash ROM. → Given the OXFF

saved in the ROM, the adjustment starts with “--” when the

automatic adjustment mode is re-started.)

This is to clear the FST adjustment mode (in normal

operation) (The display returns to the normal display and the

test mode is retained.) Frequency is switched to 97.9MHz.

This is to clear the FST adjustment mode (when failed in the

automatic adjustment) (The display returns to the normal

display and the test mode is retained.)

Frequency is switched to 97.9MHz.

• Procedure in MANUAL adjustment mode

Key Description of display Description

/

■

/

ROTARY

Level Offset

adjustment (Manual)

Completion of the

adjustment value

saving

Failed to save the

adjustment value

M S–XX L –XX

ADJ OK :XX

(Level offset value)

ADJ NG

Press [/] key for 500ms or longer to continuously increase / decrease the adjustment value.

Display when the adjustment value has been saved in

the Data Flash ROM

The saved level offset value (HeX) is displayed.

Display when the adjustment value has not been saved

in the Data Flash ROM

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