Kenwood KDC-MP732 User manual

© 2005-12 PRINTED IN JAPAN
B53-0362-00 (N)589
CD RECEIVER
KDC-MP732
SERVICE MANUAL
This product uses Lead Free solder.
SIZE AA BATTERY
(Not supplied)
MODEL TDF PANEL No. TDF NAME
KDC-MP732 Y33-2430-61 TDF-MP67D
TDF PANEL INFORMATION
CD MECHANISM EXTENSIONCORD (24P) : W05-0934-00
DC cord
(E30-6428-05)
Escutcheon
(B07-3126-01) Mounting hardware assy (J21-9716-03)
Remote controller assy
(A70-2067-15)
Lever
(D10-4589-04) x2
Carrying case
(W01-1661-05)
Screw set
(N99-1758-05) Tapping screw (N09-6280-05)
Panel assy
(A64-3732-02)
RC-527

KDC-MP732
2
BLOCK DIAGRAM
AM+B
F/E
A1
CD
LX BUS
SW5V
A8V
A8V AGC
E-VOL
LPF DAC LPF
A3.3V A5V
D3.3V D5VBU5V
A8V
A3.3V REF+B
SVR REF
PRE
MUTE AMP
OP
IC
POWER
9V
PRE OUT
PRE OUT
PRE OUT
AUX IN
SHIFT
LEVEL
D3.3V
IC303 IC305
IC1
IC5 IC3
IC4
IC800 Q802
Q608-613
IC800
IC750
Q402
IC300 IC601-603
IC103
DRIVER
MUTE
BU5V
IC102
RDS
DECODER
IC400
IC100
MD-DET
MEMO
INSTALLER
ROM CORR
SW5V
BU5V
A8V
D5V
SERVO
Q450
DSI
BU5V
UP
BACK
RESET
IC BU5V
u-COM
OPEL DISP
P-CON
ANT-CON
EXT AMP
ACC DET
DIMMER
SURGE DET
B.U DET
Q20
BU5V
SW16V
Q50
Q41
ILL+B
SW14V
IC10
A8V
Q12
IC600
DC/DC
(5VPRE)
+B
MOTOR
Q30
PANEL
5V
(FL)
SERVO
Q63
FL DC
Q31
DC/DC
IC80
DRIVER
MOTOR
IC450
CD5V
Q64
SW5V
Q22
MECHA
PANEL
CLOSE
OPEN/
DET
P CON
ANT CON
EXT.AMP.CON
DIMMER
ACC
BACK UP
LINE
PANEL
SP OUT(FR)
SP OUT(RL)
SP OUT(FL)
SP OUT(RR)
REMOTE
D3.3V
IC11
SW5V
Q7,8
D2.5V
IC10
FL+BFL3.3V
FL
Q6
SW3.3V
PANEL
u-COM
IC4
RESET SW
IC1
FLASH ROM
ENCODER
ROTARY
IC2
IC6
KEY ILL
BU5V
SW5V
SERVO
D5V
A8V
9V
ILL+B
Q40
ED1
ILL+B
(SW)
(FRONT)
(REAR)
WIRED
Q205
Q203,204
Q202
Q207
Q206
Q208
IC200
KEY
Q10
TEL MUTE
COMP
DRIVE
3.3V
ADC
DSP
IC5
RESET
IC
KEY MATRIX
LEVEL
SHIFTSHIFT
LEVEL
SPE ANA
IC3
CORR
ROM
REMO.
CON.
(FST)
MD
E2PROM
FST
FM/AM
AUX
CH
CDorMD
SPE
MUTE A,C
MUTE 0,1,2
WININ OFFSET
RST
MUTE A,C
STBY
for
MPX
RDS
RST
ANA
SPE
ANA
DCERR
PRE MUTE
MUTE 0,1,2
PANEL
CD PLAYER UNIT (X32-586x-xx)
(X34- )
BOARD
MOTHER
EF
ACB
TR COIL
FO COIL
DPU1
APC
IC7
16.934MHz
CLOCK
IC3
LPF
IC2
SW
A3.3V REG
IC1
LOADING &
MECHA
u-COM
IC4
CLOCK
16.00MHz
RF AMP
SERVO
MP3 DECODER
WMA DECODER
1Mbit SRAM
PROCESSOR
D3.3V REG
IC6
MOTOR
DRIVER
MOTOR
SPINDLE
BU3.3V REG
IC5
S2
S4
S1
S3
AAC DECODER
SLED
MOTOR
DM2
DM1
Q4
X2
X1
Q7,8
0-01 ONLY
IC10
4Mbit
DRAM
+
+
+
+
+
1.6V REG
VREF
D.GND
BU5V
8EJE-SW
12EJE-SW
LOS-SW
LOE/LIM-SW
D.GND
D5.0V
MOTOR
LO/EJ
S.GND
D.GND
D.GND
S.GND
DATA
MUTE R
MUTE L
MSTOP
MRST
CLK
A.GND
A8V
R-ch
L-ch
D.GND
S.GND
D.GND
D.GND
D.OUT
S7.5V
DMUTE
D.GND
P-ON1
P-ON2

KDC-MP732
3
COMPONENTS DESCRIPTION
●ELECTRIC UNIT (X34-3730-11)
Ref. No. Application / Function Operation / Condition / Compatibility
IC10 Audio 8V Ref Power Supply Output 1.27V.
Power Supply for VFD & Mecha digital.
IC60 Switching Regulator Controller CH1 :VFD (4.7V)
CH2 : Mecha digital (DXM-680x : 4V , Other : 5V)
IC80 Switching Regulator Power supply forVFD. (57V)
IC100 Reset IC “L” when detection voltage goes below 3.6V or less.
IC102 System µ-com Controls FM/AM tuner, the changer, CD/MD mechanism,
Panel, volume and tone.
IC103 Muting logic IC Controls logic for muting.
IC104 EEPROM For instraller’s memory
IC200 Power Control IC Power control switch
IC300 Eelectrical Volume & Source Selecter Controls the source, volume, and tone.
Panel mecha control
IC450 Panel mecha motor driver
IC451 G-Analyzer Analog gravity sensor.
IC600 ±9V AVR Power supply for 5V Pre Out OP-AMP.
IC601~603 5V Pre-out AMP Output buffer and gain control.
IC750 Power IC Amplifies the front L/R and the rear L/R to 50W maximum.
IC800 Audio3.3V Ref Supply Audio 3.3V Ref supply to electrical volume and all low pass filters.
SVR6.8V Ref Supply SVR6.8V Ref supply to power IC.
Q10,11 Audio8V AVR When Q11’2in goes Hi, A8V AVR outputs 8.0V.
Q12 SW14V When Q12’2pin goes Hi, SW14V outputs 14V.
Q20,21 B.U.5V AVR While BU is applied, BU5V AVR outputs +5V.
Q22,23 SW5V When Q23’base goes Hi, SW5V outputs +5V.
Q30,32 Moter+B AVR (Panel Mecha) When Q9’base goes Hi, Moter+B AVR outputs 7.5V.
Q31,33 Servo+B AVR When Q33’base goes Hi, Servo+B AVR outputs 8.5V.
Q40,42,45 Panel5V AVR When Q42’ 2pin goes Hi, anel5V AVR outputs 5V.
Q41,43,44 Illumination AVR When Q43’2pin goes Hi, Ill AVR outputs 10.5V.
Q50~52 SW16V (Surge Protection) When Q51’2pin goes Hi, SW16V outputs 13V.
Q60 VFD (4.7V) AVR SW When base goes Hi, VFD AVR off.
Q61 Switching Regulator frequency control SW (IC60)
Q62 Mecha digital AVR SW When base goes Hi, Mecha digital AVR off.
∗DXM-680x : 4V, Other : 5V
IN1 IN2 Panel mecha
LLWAIT
LHOPEN
HLCLOSE
HHSTOP
1pin 2pin LH
L400kHz 600kHz
H650kHz 850kHz

KDC-MP732
4
COMPONENTS DESCRIPTION
Ref. No. Application / Function Operation / Condition / Compatibility
Q63 VFD (4.7V) AVR Switching Power Driver This FET is governed by IC60.
Frequency is decided at Q61.
Q64 Mecha digital AVR Power Driver This FET is governed by IC60.
Frequency is fixed 400kHz.
Q80,81 VFD (57V) AVR SW When Q81’ base goes Hi, VFD (57V) AVR outputs 57V.
Q91 Panel5V Discharge SW When Q91’base goes Hi, Panel5V is discharged.
Q100,101 Panel Detect SW When Q100’base goes Lo, panel is detected.
Q200,201 Pre-out mute driver When a base gose Lo, mute driver is turned on.
Q202 Acc Detect SW When Q202’base gose Hi, Acc voltage is detected.
Q204 Surge Detect SW When Q204’base goes Hi, IC750 is changed into a standby state.
Q205 B.U Detected SW When Q35’base gose Hi, B.U voltage is detected.
Q207 Small-lamp Detect SW When Q207’ base goes Hi, Small-lamp is detected.
Q208,209 Power Antenna SW When Q206’base goes Hi, power antenna switch outputs 14V.
Q300 DSP mute SW When base goes Lo, DSP is set to mute.
Q402,403 AM+B SW When Q403’base gose Hi, AM+B is outputs.
DSI lights when the base is “L”.
Q450 DSI Driver DSI turns off when the base is “H”.
DSI turns on and off when panel is taken off.
Q600~602 Pre-Amp +9V AVR Q600 and 602 works as a differential amplifier,
Q601 works as a driver and +9.4V is supplied to OP Amp for Pre-out.
Q603~605 Pre-Amp -9V AVR Q603 and 605 works as a differential amplifier,
Q604 works as a driver and -9.1V is supplied to OP Amp for Pre-out.
Q606,607 AUDIO 10.5V AVR When Q606’ base goes Hi, AVR outputs 10.5V.
Q608~613 Pre-out mute SW When a base gose Hi, Pre-out is set to mute.
Q800,802 REF+B AVR When Q800’base goes Hi, AVR outputs 13V.
Q801 SVR6.8V Ref Supply AGC Controller When the voltage of B.U voltage falls, a return is hung and an output
is reduced.
●SWITCH UNIT (X16-3540-10)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 ROM IC Graphics data included
FLASH ROM IC
IC4 PANEL µ-COM
IC5 RESET IC When panel is attached, IC5 active
IC6 REMOTE CONTROL IC Remote control receiver
IC7 BUFFER IC It is change into 3.3V from 5V
IC8 BUFFER IC It is change into 5V from 3.3V
IC9 BUFFER IC For Control ED1
IC10 2.5V REGULATOR The power supply For 2.5V
IC11 3.3V REGULATOR The power supply For 3.3V
Q1 TRIANGLE GREEN Triangle green LED is lighting when Q1’s base level goes “H”
LED SW

KDC-MP732
5
COMPONENTS DESCRIPTION
Ref. No. Application / Function Operation / Condition / Compatibility
Q2 TRIANGLE RED Triangle red LED is lighting when Q2’s base level goes “H”
LED SW
Q3 BLUE LED SW Blue LED are lighting when Q3’s base level goes “H”
Q4 GREEN LED SW Green LED are lighting when Q4’s base level goes “H”
Q5 RED LED SW Red LED are lighting when Q5’s base level goes “H”
Q6 SW3.3V SW SW3.3V the power supply of IC1, 3 is turned on when Q6’s base
level goes “L”
Q7,8 SW5V SW SW5V the power supply of IC2, 6 is turned on when Q8’s base
level goes “H”
Q9,10 FL3.3V SW FL+3.3V (VDD1) is turned on when Q9’s base level goes “H”
Q12 FL BLK SW ED1 is lighted on when Q7’s base level goes “H”
Q11,13 FL+B SW FL+B (VDD2) is turned on when Q11’s base level goes “H”
●CD PLAYER UNIT (X32-5860-00)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 A3.3V regulator Power supply for audio 3.3V
IC2 Ope amp for low-pass filter
IC3 4ch BTL driver Driving spindle motor and loading/ejection operation
IC4 Mechanism µ-com
IC5 BU 3.3V regulator Power supply for backup 3.3V
IC6 D3.3V regulator Digital 3.3V power supply
IC7 Audio DAC built-in servo DSP MP3, WMA, and AAC compatible
IC11 Buffer IC Level shift
Q1 A3.3V discharge circuit
Q4 Current amp Adjusts current to be sent to laser
Q5,6 SW 5V
Q7,8 SW 8V
D1 For current amp