Kenwood KDC-4047UA User manual

This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.
© 2009-11 PRINTED IN JAPAN
B53-0767-10 (N)341
SERVICE MANUAL
KDC-4047UA/UG/UGY/UM
KDC-414UA /414UM
KDC-MP245U
KDC-U3046/U346/U4046
CD RECEIVER
TDF SPARE-PANEL
MAIN UNIT NAME TDF PARTS No. TDF NAME
KDC-4047UA Y33-3242-73 TDF-4047UA
KDC-4047UG Y33-3242-74 TDF-4047UG
KDC-4047UGY Y33-3242-76 TDF-4047UGY
KDC-4047UM Y33-3250-23 TDF-4047UM
KDC-414UA Y33-3242-75 TDF-414UA
KDC-414UM Y33-3250-24 TDF-414UM
KDC-MP245U Y33-3240-11 TDF-MP02DU
KDC-U3046 Y33-3250-21 TDF-U3046
KDC-U346
KDC-U346 Y33-3250-22 TDF-U346
Mounting hardware assy
(J22-0789-03)
Lever
(D10-7106-04) x2
* DC cord
(E30-xxxx-xx)
* Screw set
(N99-1757-15)
Escutcheon
(B07-3270-01)
* Carrying case
(W01-1710-05)
* Screw (4x16)
(N84-4016-48)
* Depends on the model. Refer to the parts list.
KDC-4047UA/UG : Panel assy (A64-5002-12)
KDC-4047UM : Panel assy (A64-5131-12)
KDC-414UM : Panel assy (A64-5132-12)
KDC-U3046 : Panel assy (A64-5008-12)
KDC-4047UGY : Panel assy (A64-5004-12)
KDC-414UA : Panel assy (A64-5003-12)
KDC-MP245U : Panel assy (A64-5001-12)
KDC-U346 : Panel assy (A64-5009-12)
KDC-U4046 : Panel assy (A64-5016-12)
KDC-4047U KDC-4047UGY
KDC-U3046
KDC-U4046
KDC-414UM
KDC-4047UM KDC-414U
KDC-MP245U
KDC-U4046 Y33-3253-02 TDF-U4046
* DC cord
(E30-xxxx-xx)
* Remote controller assy (RC-405)
(A70-2104-05)
* Plastic cabinet assy
(A02-2755-23)

2
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
BLOCK DIAGRAM
2
51
BU-DET
LINE MUTE
ACC-DET
RESET
9
5
9
BU-DET
1
2
MUTE
R15
12
3
to GND
3
3
1
ROM CORRECTION (NOT USED)
1
1
111
R31
R118
1
FL+B
PS1-1 / PS1-2 / PS1-3
ACC-DET / BU-DET
PS2-1
PHONE
REAR/SW
FRONT
PS1-1 / PS1-2 / PS1-3
PS2-1 / PS2-2 P-ANT
P-CON
SP-OUT
PHONE
ACC
B.U.
DC CN
FRONT L/R
REAR L/R
P-STBY
15
2
8
8
4
2
OEM REMOTE
to SYSTEM
2
(13-SEG, 11-DIGIT)
J1,IC4
2
PANEL5V
5
u-COM (IC1)
E-VOL
IC2
A8V
SYSTEM u-COM
∗Q703-706
PHONE
ACC-DET
Q101
Q103
BU-DET
Q102
SW14V
Q11,12
Q2,3
A8V
SERVO+B
D5V
BU5V
SW5V
PANEL5V
RESET IC
IC8
ILLUMI+B
CONNECTOR
RESET
REMOTE
FL DISPLAY
IC1
IC6
∗IC2
J1
ILLUMI+B
S1
ED1
∗J5
MUTE
∗Q707
IC501
SERVO+B
BU5V
Q301
BU5V
DME1
BU5V
SW5V
S3
J1
A8V
ANT.
∗IC7
SW5V
E2PROMSW5V
BU5V
FRONT
J2
PANEL DET
IC1
BU5V
SW5V
FL+B
IC4
FL+B
J3
SW5V
IC10
RDS
DECODER
TUNER ATOMIC CD MECHA
(X32- )
ROTARY
ENCODER DRIVER
FL
KEY
ILLUMI
Rx1
1/2W
KEY
MATRIX
1/2W
Rx1
CD
SERVO
IC
SUPPLY
POWER
DC-CN etc
MUTE
PRE
IC
POWER
PRE-OUT
-DET
SURGE
DC-CN
AUX
BU5V
USB5V
BU5V
USB CN
J3
USB5V
IC51
BU3.3V
IC53
LEVEL
SHIFT Bolero u-COM
(SUB u-COM)
252 IC900
SW
HI-SIDE
iPod IC
USB5V
∗IC950
IC52
FL+B
Bolero
E2PROM
IC951
(NOT USED)
BU
IC251,
BU5V
BU5V
ELECTRIC UNIT (X34-660x-xx)
SWITCH UNIT (X16-675x-xx)
DPU1
CD PLAYER UNIT (X32-6250-00) BOARD
MOTHER
(X34- )
EF
A
C
B
TR COIL
FO COIL
APC
IC4
16.934MHz
CLOCK
IC3
LOADING &
MOTOR
DRIVER
MOTOR
SPINDLE
S2
S1
SLED
MOTOR
DM1
DM2
X1
Q1
RF AMP
SERVO
MP3 DECODER
WMA DECODER
1M bit SRAM
PROCESSOR
AAC DECODER
+
+
+
+
+
LEVEL SHIFT
RESISTOR
FILTER
FILTER
D1.5V
IC5
Q14 REG
BU1.5V/
OUTPUT
D3.3V
VREF
12EJE-SW
LOS-SW
LOE-SW
MOTOR
LO/EJ
A.GND
TR OUT
FO OUT
DM OUT
FM OUT
A3.3V
LD
SIGNAL A/B/C/E/F
S.GND
S7.5V
FO OUT
TR OUT
DM OUT
FM OUT
DRV MUTE
SO
SRAM STB
SI
BUCK
CCE
PIO0
R15
SRAM STB
BUCK
CCE
PIO0
SO
SI
MRST MRST
C43
C44
Rch
Lch Lch
Rch
ZDET MUTE L/R
D.GND
D GND BU1.5V D1.5V D3.3V
AGND
BU5V
P.ON
PD

3
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
COMPONENTS DESCRIPTION
●SWITCH UNIT (X16-675x-xx)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 VFD Driver
IC2 Remote Control Sensor
●ELECTRIC UNIT (X34-660x-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, tone.
IC4 Power Supply IC Outputs 5Vx2, 8.3V, 10.2V, P-CON, P-ANT.
IC6 Power IC Amplifies 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.
IC10 E2PROM Tuner setting memory. (Not used)
IC51 USB+5V Power supply for D+5.1V. (to USB and panel)
IC52 Hi-side SW Detects USB over current.
IC53 D+3.3V AVR IC Power supply for D+3.3V.
IC251 Level Shift (3.3V → 5V) Logic IC.
IC252 Level Shift (5V → 3.3V) Logic IC.
IC501 Tuner IC (ATomIC) Tuner IC.
IC900 Bolero μ-COM USB/CD mechanism control.
IC951 Bolero E2PROM (Not used)
Q2,3 Servo+B AVR When Q3’s base goes Hi, AVR outputs 7.5V.
Q11,12 CONT SW for Servo+B ON when the base goes Hi.
Q13 CONT SW for IC4 ON when the base goes Hi.
Q14 CONT SW for IC4 ON when the base goes Lo.
Q53 FREQ CONT SW for IC51 When the base goes Lo, switching frequency becomes 1.3MHz.
When the base goes Hi, switching frequency becomes 1.8MHz.
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 CONT ON when the base goes Hi.
Q301 Panel 5V SW ON when the base goes Lo.
Q705,706 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.
Q902,903 3.3V AVR for IC900 When base of Q902 is Hi, 3.3V is ON.
Q905 CD “LOE LIM SW” Buffer When base of Q905 is Hi, loadingnd end completes.

4
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
●CD PLAYER UNIT (X32-6250-00)
Ref. No. Application / Function Operation / Condition / Compatibility
IC3 4ch BTL Driver Driver for focusing & tracking coil, driver for sled & spindle motor, and operation for disc
loading & ejection.
IC4 Servo DSP with built-in Audio DAC With built-in MP3/WMA/ACC decoder and 1M-bit-SRAM.
IC5 BU1.5V/D3.3V REG. Power supply for BU1.5V.
Power supply for digital/analogue/audio 3.3V.
Q1 APC (Auto Power Control) Drives LD (Laser Diode).
Q14 D1.5V Output Switches ON/OFF at one end of BU1.5V line which is separated into 2 directions.
Uses output voltage as D1.5V.
D2 Laser Diode Protection Prevents reverse bias which is applied to laser.
Laser destruction prevention.
D3,4 Static Electricity Countermeasure Prevents malfunction by static electricity.
COMPONENTS DESCRIPTION
MICROCOMPUTER’S TERMINAL DESCRIPTION
●SYSTEM μ-COM : IC1 on X34- (ELECTRIC UNIT)
Pin No. Pin Name I/O Application
Truth Value
Table
Processing / Operation / Description
1~5 NC - Not used Output L fixed
6 REMO I Remote control signal input Detects pulse width
7 NC - Not used Output L fixed
8 BYTE I Memory extension bus width setting Connects to VSS
9 CNVSS - Connects to VSS
10 XCIN - 32.768kHz
11 XCOUT - 32.768kHz
12 RESET - L: Reset
13 XOUT - 16.0MHz
14 VSS -
15 XIN - 16.0MHz
16 VCC1 -
17 NC - Not used Output L fixed
18 PANEL DET I Panel communication detection H: No panel, L: Panel detached
19~24 NC - Not used Output L fixed
25 PON FL O Key illumination power supply control ON: H, OFF: L
26 PON PANEL I/O Panel 5V control ON: L, 11 minutes after momentary power-down or
panel detached or ACC OFF: Hi-Z
27 NC - Not used Output L fixed
28 BEEP O Beep output 2kHz / 1kHz
29 TUN SCL I/O Tuner I2C clock output
30 TUN SDA I/O Tuner I2C data input/output

5
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
Pin No. Pin Name I/O Application
Truth Value
Table
Processing / Operation / Description
31 VFD SYS DATA O VFD data output VFD data output. VFD_BLK (Pin34) is made Hi and
the communication begins after 500ms.
32 VFD PAN DATA I VFD data input
33 VFD CLK O VFD clock output 125kHz
34 VFD BLK O VFD driver reset output
H: Reset cancelled, L: Reset,
11 minutes after momentary power-down or panel
detached or ACC OFF: L
35 S SYS DATA O Bolero serial output
36 S SOC DATA I Bolero serial input
37 S SOC CLK I Bolero serial clock input
38 CD LOS SW I CD loading detection
39
CD LOE LIM SW I CD detection (Chucking SW) H: Loading completed, L: No disc
40 CD LOEJ I/O CD motor control qRefer to the truth value table
41 ROMCOR DET I E2PROM writing request H: Writing
41 EPM I Flash ROM EPM input L: Rewritable (Only when flash ROM is used).
Connects to VSS.
42 CD MOTOR I/O CD motor control qRefer to the truth value table
43 NC - Not used Output L fixed
44 CD DISC12 SW I 12cm disc detection
45 NC - Not used Output L fixed
46 VFD CE O VFD control request H: Possible to transfer VFD data
47 AUD SDA I/O E-VOL data input/output
48 AUD SCL I/O E-VOL clock output
49 ROTARY CCW I VOL encoder input Detects pulse width
50 ROTARY CW I VOL encoder input Detects pulse width
51 RDS DATA I/O RDS decoder data input
52 RDS QUAL I RDS decoder qualification input
53 SOC MUTE I CD mute request H: Normal, L: Mute request
54 S SOC REQ I
Communication request from SOC to system μ-com
55 SOC RST O SOC reset H: Normal, L: Reset
56 SOC S STOP O SOC stop H: Normal, L: SOC stopped
57 S SYS REQ O Communication request from system μ-com
to system μ-com to SOC
58~61 NC - Not used Output L fixed
62 VCC2 -
63 NC - Not used Output L fixed
64 VSS -
65~73 NC - Not used Output L fixed
74 RDS CLK I/O RDS decoder clock input
75 NC - Not used Output L fixed
76 PWIC STBY O Power IC standby control POWER ON: H, POWER OFF: L
MICROCOMPUTER’S TERMINAL DESCRIPTION

6
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
Pin No. Pin Name I/O Application
Truth Value
Table
Processing / Operation / Description
77 PWIC MUTE O Power IC mute STANDBY source or momentary power-down: L,
TEL mute: L
78 MUTE I/O Mute L: Mute OFF, Hi-Z: Mute ON
79 BU DET I Momentary power-down detection
BU found: L,No BU or momentary power-down: H
(Operates within 4ms after momentary power-down
is detected)
80 ACC DET I ACC power supply detection ACC found: L, No ACC: H
81 TYPE1 I Destination SW Refer to the truth value table
82 TYPE2 I Destination SW Refer to the truth value table
83 NC - Not used Output L fixed
84 PWIC DC ERR I
Detection of power IC short-circuited +B/GND
85 LINE MUTE I Line mute setection TEL mute: Below 1V, NAVI mute: Over 2.5V
86 TUN SMETER I S-meter input
87 PON SWREG O SW-REG ON/OFF H: ON, L: OFF
88 AUD DC ERR I DC offset setection
If DC offset is detected 20 times in 100ms with
condition below 1.0V, it will be judged as DC offset
is detected.
89 FSEL O SW-REG frequency SW H: 1.3MHz, L: 1.8MHz
90,91 NC - Not used Output L fixed
92 PS2 1 O Power supply IC control wRefer to the truth value table
93 PS1 1 O Power supply IC control wRefer to the truth value table
94 PS1 2 O Power supply IC control wRefer to the truth value table
95 PS1 3 O Power supply IC control wRefer to the truth value table
96 AVSS -
97 NC - Not used Output L fixed
98 VREF -
99 AVCC -
100 NC - Not used Output L fixed
• Truth value table
qCD motor control
CD MOTOR (Pin 42) CD LOEJ (Pin 40)
Stop L L
Load H L
Eject H H
Brake H Hi-z
wPower 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
H H H ON ON ON
SEL2 (Pin 11)
PS1-1 PS2-2 AUDIO/SW5 AM
L L OFF OFF
H L ON OFF
H H ON ON
MICROCOMPUTER’S TERMINAL DESCRIPTION

7
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
●Bolero μ-COM : IC900 on X34- (ELECTRIC UNIT)
Pin No. Pin Name I/O Application Processing / Operation / Description
1 MRST - Reset L: Reset, H: Normal
2 MSTOP I Stop signal from system μ-com H: Normal, L: SOC stop
3 REQ S I Request signal from system μ-com L: Request
4 NC - Not used
5 BSIF ST REQ I BSIF
6 VCC - Power supply
7 XT1 - Low frequency oscillator Sub clock 32.768kHz
8 XT2 - Low frequency oscillator Sub clock 32.768kHz
9 PWE - External power supply output L: Stop
10 DVSS - GND
11 DVCC1B - For SRAM with built-in power supply
12 RVOUT1 - Built-in REG1.5V output
13,14 RVIN - Built-in REG power supply input
15 RVOUT2 - Built-in REG1.5V output
16 DVCC1A - For logic with built-in power supply
17 DVSS - GND
18~22 NC - Not used Output L fixed
23 CD CCE O CD mechanism chip enable Command I/F
24 CD RST O CD mechanism reset H: Normal, L: Reset
25 NC - Not used Output L fixed
26 DVSS - GND
27 DVCC3A - For I/O around power supply
28 CD REQ I Communication request from mechanism DSP H: Data request
29 CD SRAM STBY O Decoder SRAM standby control L: SRAM standby
30 CD DRIVE MUTE O CD motor driver mute output
31 CD PON O CD mechanism power supply control output H: Power supply ON, Hi-z: Power supply OFF
32~43 NC - Not used Output L fixed
44 DVSS - GND
45 DVCC3A - For I/O around power supply
46~54 NC - Not used Output L fixed
55 NC (IPOD CHECK) - For iPod authentication IC mounting confirmation Outputs Hi when iPod communication is detected
56~61 NC - Not used Output L fixed
62 DVSS - GND
63 DVCC3A - For I/O around power supply
64 NC - Not used Output L fixed
65 ZDET IN I ZDET (0-bit mute request) L: Normal, H: Mute request
66 CD MUTE O Mute request to system μ-com L: Mute request, H: Normal
67 REQ M O Request signal to system μ-com L: Request
68 IPOD RST O Reset
69 BOOT I For flash ROM writing
MICROCOMPUTER’S TERMINAL DESCRIPTION

8
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
Pin No. Pin Name I/O Application Processing / Operation / Description
70 NC - Not used Output L fixed
71 BSIF LRCK - BSIF
72 AM1 - Fixes operation mode to “1”
73 X2 - High frequency oscillator Main clock 9.00MHz
74 DVSS - GND
75 X1 - High frequency oscillator Main clock 9.00MHz
76 DVCC3A - For I/O around power supply
77 USB OC I USB over-current detection L: Detected, H: Normal
78 USB PON O USB-PON output
79 USB D+ - USB data connection
80 USB D- - USB data connection
81 AM0 - Fixes operation mode to “1”
82 CD LOE LIM SW I CD detection (Chucking SW) L: Loading completed, H: No disc
83 DVSS - GND
84 DATA M O Serial I/F to system μ-com (Transmission)
85 DATA S I Serial I/F from system μ-com (Reception)
86 CLK O Serial I/F to system μ-com (Clock output) f=1MHz
87 CD SO O Serial I/F (Transmission) Command I/F
88 CD SI I Serial I/F (Reception) Command I/F
89 CD CLK O Serial I/F (Clock output) f: Below 1MHz
90 IPOD SDA I/O I2C-iPod authentication data input/output
91 IPOD SCLK I/O I2C-iPod authentication clock output f=80kHz
92 BSIF BCK - BSIF
93 BSIF DATA - BSIF
94 BSIF GATE O BSIF
95 DVCC3A - For I/O around power supply
96 ROM COR DET I ROM correction writing detection H: writing
97~99 NC - Not used
100 DVSS - GND
MICROCOMPUTER’S TERMINAL DESCRIPTION

9
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
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
5
Disc Eject times display
EJCNT XXXXX Disc Eject times display (Max. 65535 times).
■5 While Disc Eject times is displayed, press and hold for 2
seconds or longer to clear Disc Eject times.
SEARCH
SRC
BAND
RETURN DISP
EJECT
●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.
●How to clear the Test mode
Procedure
Reset, Momentary power down, ACC OFF, Power OFF, Panel detached.

10
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
■Test mode default condition
Description Default values
Source STANDBY
Display Display lights are all turned on.
VOL -10dB (“30” is displayed.)
BASS BOOST OFF
AUX ON1
SystemQ / dB EQ NATURAL (FLAT)
BEEP Beeps when the key is pressed briefly.
PREOUT REAR
■Test mode specification in STANDBY source
Key Description of display Description
Common All lights ON. :All lights ON.
1
(forward
rotation)
System μ-com version
display SYS0 1 – 3.0 0 System μ-com version display
Mechanism model name
and mechanism version
display
9B20 Mechanism model name and mechanism version display
■1Design version display
mode ON/OFF
Design version information display
mode (sub-mode) ON/OFF
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.
2 Serial No. display SN 00000000 Serial No. displayed (8 digits)
3
Power ON time display
PONTM 0HX X The 00~50 is displayed for “xx”. When less than 1 hour,
displayed by increments of 10 minutes.
PONTM XXXXX The 00001-10922 is displayed for “xxxxx”. MAX 10922 (hours)
4
DISC operation times
display
CDTM 0HX X The 00~50 is displayed for “xx”. When less than 1 hour,
displayed by increments of 10 minutes.
CDTM XXXXX The 00001-10922 is displayed for "XXXXX". MAX 10922
(hours)
5
DISC EJECT times display
EJCNT XXXXX Disc Eject times display. MAX 65535 (times)
■5While disc EJECT times is displayed, press and hold for 2
seconds or longer to clear disc EJECT times.
6Data Flash ROM writing-in
times display DFCNT XXXXX The number of data writing-in the Data Flash ROM is
displayed. MAX 10000 (times)
TEST MODE

11
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
TEST MODE
Key Description of display Description
BAND ROM correction version
display
S0001 M0001
<System μ-com> <Mechanism μ-com>
The number is the ROM correction version number.
S–––– M––––
<System μ-com> <Mechanism μ-com>
When not written in yet.
S∗∗∗∗ M∗∗∗∗
<System μ-com> <Mechanism μ-com>
When data not matched
∗Due to the difference in versions.

Audio data initialization AUD I O I N I T Audio setting value is re-set to the Test mode default value.

Forced Power OFF
information display
POFF ––– No forced Power OFF
POF F PNL 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.
DISP
CD information display
mode ON/OFF
Transition to the CD information
display mode (sub-mode)
∗Refer to “CD information display mode” for the details of
display and operation procedure. Press [DISP] key briefly.
■DISP Clear all of the CD information
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 [DISP] key.
■SEARCH
Preout switching
SWPRE REAR Pressing and holding this key for 1 second switches the
preout. (Except KDC-4047UGY)
SWP R E S U B – W
RETURN
FL display
Short circuit check
Turn off all the terminals →At every 125ms, turn on the
maximum odd number terminal and the maximum even
number terminal of the grid alternatively →Turn on only the
odd number terminals →Turn on only the even number
terminals →

12
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
TEST MODE
• CD information display mode (sub-mode)
Key Key Description of display Description
BAND
(forward
rotation)

/

CD mechanism error log
display
MECHA E R 1:X X
Mechanism error log 1 (Latest)
XX: Error number. The “--” is displayed in case there is
no error.
MECHA E R 2:X X
Mechanism error log 2 (Latest)
XX: Error number. The “--” is displayed in case there is
no error.
MECHA E R 3:X X
Mechanism error log 3 (Latest)
XX: Error number. The “--” is displayed in case there is
no error.

/

CD load error information
display
LOAD ER1:XX
Load error switch 1
XX: The number of errors. The “--” is displayed in case
there is no error.
LOAD ER2:XX
Load error switch 2
XX: The number of errors. The “--” is displayed in case
there is no error.

/

CD ejection error
information display
EJECT ER1:XX
Ejection error switch 1
XX: The number of errors. The “--” is displayed in case
there is no error.
EJECT ER2:XX
Ejection error switch 2
XX: The number of errors. The “--” is displayed in case
there is no error.
EJECT ER3:XX
Ejection error switch 3
XX: The number of errors. The “--” is displayed in case
there is no error.
EJECT ER4:XX
Ejection error switch 4
XX: The number of errors. The “--” is displayed in case
there is no error.

/

CD time code error
count information display
(Missing counts)
CNT LOSE CD time code error count information (Missing counts)
mode is display.
CDDA :XX
Number of CD-DA error counts
XX: The number of errors. The “--” is displayed in case
there is no error.
CDROM :X X
CD-ROM (Compression file) number of count errors
XX: The number of errors. The “--” is displayed in case
there is no error.

/

CD time code error
count information display
(Count is not updated.)
CNT STAY CD time code error count information
(Count is not updated) mode display.
CDDA :XX
Number of CD-DA error counts
XX: The number of errors. The “--” is displayed in case
there is no error.
CDROM :X X
CD-ROM (Compression file) number of count errors
XX: The number of errors. The “--” is displayed in case
there is no error.

13
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
TEST MODE
• Design version information display mode (sub-mode)
Key Description of display Description
BAND
(forward
rotation)
Destination terminal
condition display TYPE21 :11 TYPE indicates μ-com destination, and indicates condition of
the destination terminal in real-time.
Development ID condition
display 0928WE2–3.00 Development code - Version (system μ-com)
■Test mode in Tuner source
If the following display is shown when the source is TUNER, it indicates an error.
Status Description of display Description
TUNER IC communication error TUN CON NG This display indicates the status in which the communication with
TUNER IC is not possible.
The adjustment is not yet made. ∗ERR∗A98.3A
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 BAND switching operation FM1–4A 98.3A Every time when the [BAND] key is pressed, the BAND is
switched as listed in the next table for each TYPE.
TYPE BAND1 BAND2 BAND3 BAND4 BAND5 BAND6 Description
K1 qFM1 FM2 FM3 wAM – – q→ w
E2/E3/E4/
E5/M4/M5 qFM1 FM2 FM3 wMW/LW – – q→ w
M2/M3/C2 qFM1 FM2 FM3 wMW eSW1 rSW2 q→ w→ e→ r
∗TYPE: See the parts list.
• 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
■5 Injection setting switching
FM1–4A 98.1A A: Injection setting AUTO
FM1–4A 98.1HH: Injection setting H
FM1–4A 98.1L L: Injection setting L
■6 Packs setting switching
FM1–4A 98.1A A: Packs setting AUTO
FM1–47 98.1A X: Packs setting 1~7

14
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
TEST MODE
• TUNER setting adjustment mode
This mode is to adjust TUNER setting.
Key Note
■DISP
Press this key to change the mode to the TUNER setting adjustment (Press and hold the key for 1 second).
When the source is FM, frequency is switched to 98.3MHz at the start of the adjustment mode.
Press and hold the [DISP] key.
Procedures in the TUNER setting adjustment mode are as follows:
• Adjustment mode switching (AUTO/MANUAL)
Key Description of display Description
■BAND
(forward
rotation)
Level Offset adjustment
(Auto) A 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.
Level Offset adjustment
(Manual) M S–XX L–XX
• Procedure in the AUTO adjustment mode
Key Description of display Description
ROTARY
In automatic adjustment A S–XX L–XX Press this key briefly to start the automatic adjustment.
Completion of automatic
adjustment
Save the adjustment value.
ADJ OK :XX
(Level offset value)
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).
Failure of the automatic
adjustment
Cannot save the
adjustment value. Save the
failed value (0XFF).
ADJ NG
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.)
RETURN Mode clear
F M 1 – 4 A 9 7.9 A
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.
∗ERR∗A 9 7.9 A
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.

15
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
TEST MODE
• Procedure in MANUAL adjustment mode
Key Description of display Description

/

■

/

Level Offset
adjustment (Manual) M S–XX L–XX Press [

/

] key for 500ms or longer to continuously
increase / decrease the adjustment value.
ROTARY
Completion of the
adjustment value
saving
ADJ OK :XX
(Level offset value)
Display when the adjustment value has been saved in the
Data Flash ROM
The saved level offset value (HeX) is displayed.
Failed to save the
adjustment value ADJ NG Display when the adjustment value has not been saved in the
Data Flash ROM
RETURN Mode clear
FM1–4A 97.9A
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.
∗ERR∗A 9 7.9 A
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.
After the TUNER setting adjustment, the entire test modes can be cleared with the reset button.
If you do not save the adjustment value in the Data Flash ROM after the adjustment, the value is not saved in the ROM.
When the level offset value is read out and found to be 0X00 or 0XFF, it is decided that the adjustment is not yet made.
The adjustment starts with the default value (OX3E) when the adjustment is re-started from the status in which it is not yet made.
Setting is not yet adjusted: L –––
[

/

] key operation
Start the adjustment: L E3–
[

/

] key operation
Increase / Decrease the adjustment value: L XX–
• S-meter voltage pass and fail evaluation mode
This mode is to display the S-meter present voltage (HeX) and to check and evaluate if the voltage is within the criteria or not (OK or NG).
Check and evaluate the voltage only after the completion of the TUNER setting adjustment. (When the setting is not yet adjusted, “--” is dis-
played.)
When receiving AM, do not select this mode.
In this mode, the BAND switching and SEEK operations such as operation of [BAND], [

/

], and [PRESET] keys shall be prohibited.
Key Description of display Description
RETURN
S-meter voltage pass and
fail evaluation display ON/
OFF
S–MTR XX:OK
(S-meter value) (Evaluation result)
[S-meter value]
XX: Present S-meter value (HeX)
[S-meter value evaluation result]
OK: S-meter voltage is within the range of the criteria
(0XA3~0XAD)
NG: S-meter voltage is outside of the range of the criteria
(Outside of the above range)
--: TUNER setting is not yet adjusted.
S–MTR XX:NG
S–MTR XX:NG

16
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
TEST MODE
• RDS automatic measurement
This automatic measurement is implemented in place of the visual inspection of the PS display that had been carried out in the production line.
Status Description of display Description
PS data reception RDS TEST The P-CON is forcibly turned off when the display in the left cell is shown.
P-CON is recovered by turning the power OFF and ON (Power OFF/ON).
■Test mode in CD source
Display mode default P-Time
• Procedure in CD-DA media (KTD-02A)
Key Description of display Operation

Track up procedure
Every time pressed, jumps to the track shown below.
No.9 →No.15 →No.10 →No.22 →No.12 →No.13 →No.14
→No.9 (recursive)
But in case the disc has 8 tracks or less, playback starts with
track No.1 (at both of CD-DA and compressed file disc).

Track down procedure Goes down by 1 track from the currently played track.
1 Jump procedure Jump to No.28. (0.7mm scratch for MUSIC line vibration test)
2 Jump procedure Jump to No.14. (Blurring surface disc: TCD-731RA Tr14)
3
(forward
rotation)
Information display
Mechanism model name
Mechanism version
9B20 Mechanism model name and mechanism version display
Information display
Mechanism Servo version SERV Mechanism servo table version display
Information display
Mechanism Boot program
version
BOOT Mechanism boot program version display
4 Jump procedure Jump to No.15. Set the volume value to “26”.
(For 20Hz 0dB DC protection error operation FCT checking)
5 Jump procedure
∗Switch the track jump from No.9 to
No.22 or from No.22 to No.9 (No.9 ↔
No.22)
When the track No.22 is being played back, this key makes
the track jump to No.9.
When the track No.9 is being played back, this key makes
the track jump to No.22.
6 PLAY/PAUSE procedure This key is to switch from PLAY to PAUSE and vice versa
(PLAY/PAUSE). (Normal operation)

17
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
TEST MODE
• Procedure in compressed media
Key Description of display Description
– File format display (MP3) MP 3
The file format is displayed just before the file playback.
– File format display (WMA) WM A
– File format display (AAC) AAC
■Backup current measurement
Procedure Note
Power on during ACC OFF (Back Up ON) MUTE terminal is turned OFF after 2 seconds, not after 15 seconds.
(During this time, the CD mechanism does not function.)

18
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
TEST MODE
■Clearing DC offset error detection information (Clear the Data Flash ROM)
Procedure Note
While pressing and holding [3] key and [6] key, reset-start. To enter DC offset error display mode.
The transition to this mode shall be possible even if the DC offset error has been detected.
This mode is cancelled by resetting. (The last screen will not be retained.)
Procedure Description of display Description
While pressing and holding
[3] key and [6] key,
reset-start.
DC ERR When DC offset error is detected (when either one of capacitor leak is
leaking, or an improper connection or other error is detected)
DC OK When DC offset error is not detected (when none of capacitor leak, no
improper connection or other error is detected)
1
DC1 ERR When improper connection or other DC offset errors are detected.
DC1 OK When improper connection or other DC offset errors are detected.
■1DC1 OK
When there is any misconnection detected or when the DC offset
error is displayed during the other detection period, press and hold
this key for 2 seconds to clear the detection information.
(Clear the Data Flash ROM)
2DC2 4 Capacitor leak detection period
display of the detected times of capacitor leaks. (0~4)
■2DC2 0 Press and hold this key for 2 seconds when a capacitor leak is
detected to clear the number of detection. (Clear the Data Flash ROM)
■FM/AM Channel space switching (Only for models of destination “K” and “M”)
Procedure Note
While Power OFF, pressing and holding [1] key and [5] key,
and press [SRC] key to Power ON
FM200kHz/AM10kHz ↔FM50kHz/AM9kHz (KDC-MP245U)
FM50kHz/AM10kHz ↔FM200kHz/AM10kHz (KDC-U3046/U346)
FM50kHz/MW9kHz/SW5kHz ↔FM200kHz/AM10kHz (KDC-4047UM/414UM)
■Forced update
Procedure Note
Start resetting while keeping pressing the [1] key and [SEARCH] key. To enter the forced update mode.
After entering the mode, make the normal SRC feed with the [SRC] key, DISC insertion, and USB insertion.
The display of the SRC switches and READING is shown in the same manner as the display of the normal mode.
After the completion of READING, start the UPDATE if there is an update file.
If there is no update file, display “NO FILE”.
Procedure Description of display Description
F/W UP MODESTANDBY condition in the forced update mode
READ I NG After the SRC switches, the “READING” is displayed during reading (The display blinks)
NO F I L E The “NO FILE” is displayed when there is no update file
UPDAT I NG The UPDATE in progress is displayed after it is verified that there is an update file and
while updating the file (The display blinks).
COMPLETE Completion of UPDATE
UPDATE ERR UPDATE error

19
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
Refer to the schematic
diagram for the values
of resistors and ca-
pacitors.
EDCBA
1
2
3
4
5
6
7
PC BOARD
(COMPONENT SIDE VIEW) (FOIL SIDE VIEW)
SWITCH UNIT
X16-675x-xx (J76-0637-02)
VCC
VO G
G
EJECT
USB
AUX
1
SRC
BAND
120
2169
5432
DISP
6
C91
C93
C92
C57
C65
C60
C59
C61
C62
C56
14
W1
IC2
D57
D63
D62
D55
D54
D53
D52
D69
D60
D61
D59
D72
D68
D67
D71
D65
D66
D58
D74
D70
D73
D56
D75
S1
D92
D93 D91
J3
ED1 J2
D51
D64
KS4
AUDIO VOL KI4
KI5
KI2
KI3
KI1
KS1
KS3
KS2
SWITCH UNIT
X16-675x-xx (J76-0637-02)
119
220
1
C12
R15
C21
R21
R23
R22 R8
R7
R59
R60
C82
C81
C13
C14
C15
C16
C71
C72
C83
C58
C11
C42
C41
R51
R52
R53
R54
R55
R56
R57
R24
R61
R6
R82
R81
R2
R1
R5
R4
R3
R13
R16
R12
R14
R11
R58
CP11
CP12
R31
R75
C84
2021
40
61
80
60
41
D82
Q2
D81
D7
D5
D4
D3
D2
D1
D8
D6
J1
BE
IC1
KI3
KS1
KI5
KS4 KI4
KS3
KS2
KI2
KI1
X16-675x-xx
Ref. No. Address
IC2 3B
X16-675x-xx
Ref. No. Address
IC1 4D

20
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA /414UM/MP245U/U3046/U346/U4046
FGHIJ
1
2
3
4
5
6
7
ELECTRIC UNIT
X34-660x-xx (J76-0640-02)
1
5V
GND
DATA
CLK
1
1
14
1
C541
R353
R352
C191
C863
C865
W24
L903
L305
C808
C954
R807
R517
C875
C876
C873 C874
C871 C872
W30
W23
W22
W25
W21
W801
L401
W53
R810
C543
R809
C401
C805
X3
R803
C301
C302
C308
C703
C704
C705 C706
W46
C403
W99
R541
C64
R118
R112
R330
R332
R333
R334
R343
R344
R345
R346
C861
W39
C68
W60
W62
R302
R703 R704
C702
C701
R705 R706
C519
L502
L508
L507
L506
L503
L505
L504
L501
X501
R751
R752
R750
R753
C752
127
226
L551
W551
R811
R109
R318
R929
R120
R317
C102
C809
C807
C806
R119
R108
R808
R
R
R
R
X900
R110
R937
C315
C316
R915
R802
R804
R805
R913
R919
R924
R812
R269
R270
R271
R931
R900
R251
R255
R256
R814
R921
R934
R935
R254
R260
R942
R940
R956
R952
R917
X901
C912
C911
R
5
R
5
R402
R403
C56
R
5
R
5
R
5
R926
R927
R910
R928
R930
R932
C901
R967
C903 C902
R907
C916
C905
R922
R972
C208
C207
R715
R716
R709 R710
R717
R718
R711
R712
R232
R231 C920
4
85
7
8
14 8
17
100
25
51 75
7650
26
5
11 15
6
10 16
20
EBEB EB EB BE BE
EB
E
BE
1
220
119
30
229
IC6
IC10
IC900
IC251
IC252
IC950
J5
D306
S3
D803
D801
D802
D304
D305
P1
D401
D109
D106
Q701
Q702
J3
CN2
Q103
Q104
D311
D312
D313
Q705
Q706
Q703
Q704
PRE OUT
PC BOARD (COMPONENT SIDE VIEW)