Kenwood KDC-MP5043U User manual

This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.
SERVICE MANUAL © 2008-11 PRINTED IN JAPAN
B53-0687-00 (N)313
KDC-MP242U/MP342U
KDC-MP443U/MP5043U
KDC-MP543U
CD RECEIVER
Panel assy
KDC-MP242U (A64-4667-02)
Panel assy
KDC-MP342U (A64-4666-02)
TDF SPARE-PANEL
MAIN UNIT NAME TDF PARTS No. TDF NAME
KDC-MP242U Y33-3030-11 TDF-MP92DCR
KDC-MP342U Y33-3030-10 TDF-MP93D
KDC-MP443U Y33-3030-23 TDF-MP443U
KDC-MP5043U Y33-3030-21 TDF-MP5043U
KDC-MP543U Y33-3030-22 TDF-MP543U
Mounting hardware assy
(J22-0789-03)
Lever
(D10-7049-04) x2
DC cord
(E30-6798-05)
Screw set
(N99-1757-15)
Escutcheon
(B07-3271-01)
* Carrying case
(W01-1710-05)
Screw (4x16)
(N84-4016-48)
* Remote controller assy (RC-5xx)
(A70-xxxx-xx)
Battery
(Not supplied)
* Depends on the model. Refer to the parts list.
* Plastic cabinet assy
(A02-2757-13)
Panel assy
KDC-MP5043U (A64-4668-02)
Panel assy
KDC-MP543U (A64-4669-02)
Panel assy
KDC-MP443U (A64-4688-02)
KDC-MP242U KDC-MP342U
KDC-MP443U KDC-MP5043U
KDC-MP543U
jomi

2
KDC-MP242U/MP342U/MP443U
KDC-MP5043U/MP543U
BLOCK DIAGRAM
ELECTRIC UNIT (X34- )
SWITCH UNIT (X16- )
LX-BUS
E-VOL
IC2
A8V
SYSTEM u-COM
BU
Q701-704
PHONE
ACC-DET
Q101
Q103
BU-DET
Q102
SW14V
Q11,12
Q2,3
A8V
SERVO+B
D5
BU5
SW5
BU
PAN5V
RESET IC
IC8
ILLUMI+B
CN
RESET
REMOTE
FL
IC1
IC6
IC2
J1
ILLUMI+B
AM+B
S1
ED1
J5
MUTE
Q705
J4
W500
A1
SERVO+B
BU5
Q301
BU5
DME1
BU5
SW5
S2
J1
SW5
AM+B
A8V
ANT.
IC7
SW5
E2PROMSW5
A8V
BU5
SW5
FRONT
J2
PANEL DET
IC1
BU5
SW5
FL+B
IC4
FL+B
J3
BU5
IC10
Q7-10
RDS
DECODER
FRONT-END CD
MECHA
ROTARY
ENCODER DRIVER
FL
KEY
ILLUMI
Rx1
1/4W
KEY
MATRIX
1/4W
Rx2
ILLUMI
+B
CD
SERVO
IC
SUPPLY
POWER
DC-CN etc
MUTE
PRE-OUT
IC
POWER
PRE-OUT
DET
SURGE
DC-CN
AUX
D1-17
S3-20
BU5
USB5V
BU5
USB CN
J3
SW+16V SW5
Q51,52
USB5V
IC51
BU 3.3V
IC53
LEVEL
SHIFT
BU5
BOLERO
u-COM
IC251,252
IC900
BU5
SW
HI-SIDE
iPod
AUTHENTICATION
USB5V
IC950
IC52
2
5
1
BU DET
PHONE
ACC DET
RST
9
5
SW5 9
BU DET
1
2
MUTE
8
R15
12
3
SW5
to GND
3
3
1
ROM CORRECTION (NOT USED)
1
1
111
R61,62
R118
1
FL+B
PS1-1 / PS1-2 / PS1-3
ACC DET / BU DET
PS2-1 / PS2-2
PHONE
REAR/SW
FRONT
PS1-1 / PS1-2 / PS1-3
PS2-1 / PS2-2 P-ANT
P-CON
SP-OUT
PHONE
ACC
B.U.
RST
5
FRONT L/R
REAR L/R
P STBY
16
2
8
8
4
2
2
jomi

3
KDC-MP242U/MP342U/MP443U
KDC-MP5043U/MP543U
BLOCK DIAGRAM
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
jomi

4
KDC-MP242U/MP342U/MP443U
KDC-MP5043U/MP543U
COMPONENTS DESCRIPTION
●ELECTRIC UNIT (X34-623x-xx)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 System μ-COM Controls FM/AM tuner, the changer, CD mechanism, panel, volume and tone.
IC2 E-VOL Controls the source, volume, tone.
IC4 Power Supply IC Outputs 5V×2, 8.1V×2, 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 Decodes RDS.
IC8 Reset IC Lo when detection voltage goes below 3.6V.
IC51 Switching Regulator 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. (IC252,900,950)
IC251 Level Shift (3.3V→5V) Shifts level. (3.3V→5V)
IC252 Level Shift (5V→3.3V) Shifts level. (5V→3.3V)
IC900 Sub μ-COM Controls USB and CD mechanism.
IC950 i-Pod Authentication Coprocessor Authenticates i-Pod.
Q2 Servo+B AVR When Q3’s base goes Hi, AVR outputs 7.5V.
Q3 Control SW for Servo +B ON when the base goes Hi.
Q7 FL+B SW ON when the base goes Hi.
Q8 FL+B AVR When Q9’s base goes Hi, AVR outputs 10.5V.
Q9 Control SW for FL+B ON when the base goes Hi.
Q10 FL+B SW ON when the base goes Lo.
Q11 14V SW ON when the base goes Hi.
Q12 14V SW ON when the base goes Lo.
Q13 Control SW for IC4 ON when the base goes Hi.
Q14 Control SW for IC4 ON when the base goes Lo.
Q51 Control SW for 16V SW ON when the base goes Hi.
Q52 16V SW When Q51’s base goes Hi, AVR outputs BU voltage.
Q53 FREQ CONT SW for IC51 1.3MHz when the base goes Lo, 1.8MHz when the base goes Hi.
Q101 ACC DET ON when the base goes Hi during ACC is applied.
Q102 Serge 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.
Q701~704 Pre-out Mute SW When a base goes Hi, pre-out is muted.
Q705 Mute Driver for Pre-out ON when the base goes Lo.
Q902,903 3.3V AVR for IC900 When base of Q902 goes Hi, 3.3V is ON.
Q905 CD “LOE_LIM_SW”_Buffer When the base goes Hi, loading ends.
jomi

5
KDC-MP242U/MP342U/MP443U
KDC-MP5043U/MP543U
●SWITCH UNIT (X16-647x-xx)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 FL Driver
IC2 Remote Control Sensor
●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
jomi

6
KDC-MP242U/MP342U/MP443U
KDC-MP5043U/MP543U
●SYSTEM μ-COM: IC1 on X34- (ELECTRIC UNIT)
Pin No. Pin Name I/O Application
Truth Value
Table Processing Operation Description
1 LX DATA M I/O Data to slave unit
2 LX CLK I/O LX-BUS clock 125kHz~65kHz
3~5 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. H: Possible to rewrite flash ROM
10 XCIN - 32.768kHz
11 XCOUT - 32.768kHz
12 RESET - L: Reset
13 XOUT - 10.0MHz
14 VSS -
15 XIN - 10.0MHz
16 VCC1 -
17 NMI I Connects to VSS
18 PANEL DET I Panel communication detection H: Panel detached, L: Panel attached
19,20 NC - Not used Output L fixed
21 ROMCOR DET I E2PROM writing request H: E2PROM writing
22,23 NC - Not used Output L fixed
24 PON FL O Key illumination power supply control ON: H, OFF: L
25 NC - Not used Output L fixed
26 PON PANEL I/O Panel 5V control
ON: L
11 minutes after momentary power-down, panel
detached or ACC OFF: Hi-Z
27,28 NC - Not used Output L fixed
29 AUD SCL I/O E-VOL clock input/output
30 AUD SDA I/O E-VOL data input/output
31 VFD SYS DATA O VFD data output The communication begins after 500ms after
VFD_BLK (34) goes Hi.
32 VFD PAN DATA I VFD data input
33 VFD CL O VFD clock output 125kHz
34 VFD BLK O VFD driver reset output
H: Reset cancelled, L: Reset
11 minutes after momentary power-down, 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
MICROCOMPUTER’S TERMINAL DESCRIPTION
jomi

7
KDC-MP242U/MP342U/MP443U
KDC-MP5043U/MP543U
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Application
Truth Value
Table Processing Operation Description
41 EPM I Flash ROM EPM input L: Possible to rewrite flash ROM
Connects to VSS (Never set it to output Hi)
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
47 NC - Not used Output L fixed
48 ROTARY CCW I VOL key input (Counter-clockwise) Detects pulse width
49 ROTARY CW I VOL key input (Clockwise) Detects pulse width
50 NC - Not used Output L fixed
51 RDS DATA I/O RDS decoder data input (Terminal for European model)
52 RDS QUAL I RDS decoder QUAL input (Terminal for European model)
53 CD MUTE I CD mute request H: Normal, L: Mute request
54 S SOC REQ ICommunication 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 SOC
58~61 NC - Not used Output L fixed
62 VCC2 -
63 NC - Not used Output L fixed
64 VSS -
65 RDS NOISE I FM noise detection (Terminal for European model)
66 TUN SMETER I S-meter input
67 TUN IFC OUT I Front-end IFC-OUT input H: Station detected, L: No station
68 AUD DC ERR I DC offset detection
If DC offset is detected 20 times in 100ms with
condition below 1.0V, it will be judged as DC offset
is detected.
69 LX RST O Forced reset to slave unit H: Reset, L: Normal
70 LX CON O Start-up request to slave unit H: Slave unit ON, L: Slave unit OFF
71 LX MUTE I Mute request from slave unit H: Mute ON, L: Mute OFF
72 LX REQ M O Communication request to slave unit
73 PWIC SVR O SVR discharge circuit During 500ms after power OFF or momentary
power-down: H, Since then: L
74 RDS CLK I/O RDS decoder clock input (Terminal for European model)
75 LX REQ S I Communication request from slave unit
76 PWIC STBY O Power IC standby control Power ON: H, Power OFF: L
77 PWIC MUTE O Power IC mute STANDBY source or momentary power-down: L,
TEL mute: L
jomi

8
KDC-MP242U/MP342U/MP443U
KDC-MP5043U/MP543U
MICROCOMPUTER’S TERMINAL DESCRIPTION
• Truth value table
qCD motor control
CD motor CD loading/eject
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
Pin No. Pin Name I/O Application
Truth Value
Table Processing Operation Description
78 MUTE I/O Mute L: Mute OFF, Hi-Z: Mute ON
79 BU DET I Momentary power-down detection
BU detected: L,
No BU or momentary power-down: H
(Operates below 4ms after momentary power-down
is detected)
80 ACC DET I ACC power supply detection ACC detected: L, No ACC: H
81 TYPE1 I Destination SW
82 TYPE2 I Destination SW
83 PWIC DC ERR I Detects whether power IC was short-circuited
to +B or GND
84 LINE MUTE I Line mute detection TEL mute: Below 1V, NAVI mute: Over 2.5V
85 NC - Not used Output L fixed
86 FSEL O Frequency SW for switching regulator H: 1.3MHz, L: 1.8MHz
87 PON SWREG O ON/OFF for switching regulator H: ON, L: OFF
88,89 NC - Not used Output L fixed
90 PS2 2 O Power supply IC control wRefer to the truth value table
91 PS2 1 O Power supply IC control wRefer to the truth value table
92 PS1 1 O Power supply IC control wRefer to the truth value table
93 PS1 2 O Power supply IC control wRefer to the truth value table
94 PS1 3 O Power supply IC control wRefer to the truth value table
95 NC - Not used Output L fixed
96 AVSS -
97 REF CON O VREF control Connects to VREF
98 VREF -
99 AVCC -
100 LX DATA S I Data from slave unit
jomi

9
KDC-MP242U/MP342U/MP443U
KDC-MP5043U/MP543U
■Example
::.
Key Description of display Description
5
Disc EJECT times display
EJCXXXXX 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.
A symbol “■” in the key column indicates that the key should be pressed and held for 1 second or longer.
■How to enter the test mode
Procedure Note
Press and hold the [1] key and [3] key and 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.
Forced disc ejection is prohibited in the test mode.
■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
System Q NATURAL
Preout Rear
TEST MODE
jomi

10
KDC-MP242U/MP342U/MP443U
KDC-MP5043U/MP543U
■Special displays when all lights are on in STANDBY source
Key Description of display Description
Common All lights ON. All lights ON.
1
Destination terminal
condition indication TYPE:11 “TYPE” indicates system μ-com (IC1) destination, and shows real-time condition of the destination terminal.
Development ID condition
indication 801E2–3.00 Development ID – Version (system μ-com: IC1)
Information display
Name of mechanism type
Mechanism version
9B20:
Display of name of mechanism type and mechanism version
(Bolero version)
(Press the key while the display is what is shown in the left
column to change to the servo version display.)
Information display
Mechanism servo version
(USB)
SERV:
Display of mechanism servo table version
(Press the key while the display is what is shown in the left
column to display mechanism boot program version.)
Information display
Mechanism boot program
version (USB)
BOOT:
Display of mechanism boot program version
(Press the key while the display is what is shown in the left
column to return to the normal display.)
2 Serial No. display 00000000 Serial No. is displayed (8 digits)
3
Power ON time display
PON 0HXX 00~50 is displayed for “XX”. When less than 1 hour, displayed
by displayed by increments of 10 minutes.
PONXXXXX 00001~10922 is displayed for “XXXXX”. MAX 10922 (hours)
■3When Power ON time is displayed, press and hold for
2 seconds or longer to clear Power ON time.
4
Disc operation time display
CDT 0HX X 00~50 is displayed for “XX”. When less than 1 hour,
displayed by increments of 10 minutes.
CDTXXXXX 00001~10922 is displayed for “XXXXX”. MAX 10922 (hours)
■4
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.)
5
Disc EJECT times display
EJCXXXXX 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.
6Panel open/close times
display
PC XXXXX PANEL open/close times display. MAX 65535 (times)
■6Press the key for more than 2 seconds while the PANEL open/
close count is displayed and PANEL open/close count is cleared.
FM ROM correction version
display
0123:0123
<System μ-com> <Mechanism μ-com>
XXXX : XXXX
(System μ-com ROM correction version: Mechanism μ-com
ROM correction)
ERR :ERR
<System μ-com> <Mechanism μ-com>
ERR : ERR
(System μ-com ROM correction error: Mechanism μ-com
ROM correction error)
––––:––––
<System μ-com> <Mechanism μ-com>
---- : ----
(System μ-com ROM correction data is not yet written:
Mechanism μ-com ROM correction data is not yet written)
∗∗∗∗
:∗∗∗∗
<System μ-com> <Mechanism μ-com>
**** : ***
(System μ-com ROM correction data is incompatible:
Mechanism μ-com ROM correction data is incompatible)
TEST MODE
jomi