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CD RECEIVER

KDC-MP6025/MP625 /MP858 /W6527/W6527Y
SERVICE MANUAL
KDC-MP6025 (K3) KDC-MP625 (K2)
Panel assy (A64-3213-02) :K2 (A64-3214-02) :K3 Escutcheon (B07-3098-02) :K2 (B07-3100-02) :K3 © 2004-1 PRINTED IN JAPAN B53-0124-00 (N) 2704 CD MECHANISM EXTENSION CORD (24P) : W05-0935-00

KDC-MP858

(M1)

Panel assy (A64-3215-02)

Escutcheon (B07-3098-02)

KDC-W6527 (E) KDC-W6527Y(E1)
Panel assy (A64-3217-02) Escutcheon (B07-3083-02)

Plastic cabinet assy (A02-2732-03)

Lever (D10-4589-04) x2

Mounting hardware assy (J21-9716-03)

DC cord DC cord (E30-6063-15) :EE1 (E30-6294-05) :M1 (E30-6295-05) :K2K3

Remote controller assy (RC-505) (A70-2059-05) :K2K3M1
Size AA battery (Not suplied) :K2K3M1

Remote controller assy (RC-420) (A70-2055-05) :EE1

Antennaadaptor Screw set (N99-1723-05) :K2K3M1 (T90-0523-05) :EE1

Screw (N09-6212-05)

TDF PANEL INFORMATION
MODEL TDF PANEL No. TDF NAME TDF-46D TDF-46DB TDF-W6527 KDC-MP625/MP858 Y33-1990-61 KDC-MP6025 Y33-1990-62 KDC-W6527/W6527Y Y33-1990-63

KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y

INPUT-MPX

AC OUT

AC IN0

AC IN1

AC IN2

BU

AC IN3

SUB

IC14 LEVEL METER
AUDIO

IC19
HPFE'S LIGHT C/R : DISCREET
PWIC

FR

PANEL

TYPE

2
(X34- )
A2 F/E AUX IC12 RDS (E type ONLY)
CD AUX CH MPX

IC2 E-VOL STD INGAIN VOLUME TREBLE OUT-SEL FRONT MAIN PHONE /NAVI SUB INGAIN + AUTOZER 0 BASS MID REAR NF/R
NAVI IN1 : HPF IN2 : 2ZONE IN3 : LPF ACIN 3+LPF : FREE ONLY NO HPF F/R/NF

IC4 PW-IC SOFT MUTE FADER
DC

SP-OUT
R/L R/R F/L F/R

FRONT
BU

REAR NF
MONO 2chQ49,50 MUTE
MUTE L/R

PRE-OUT
FRONT

LX-BUS

CH/AUX

DC OFFSET DET

Q47,48 MUTE
MUTE L/R

PRE-OUT
REAR/NF

BLOCK DIAGRAM

OPELDISP (E type ONLY)

Q58,59 MUTE
2ZONE

Q56,57 MUTE
NF

Q36 ACC-DET ACC

ANT-CON Q7,9 CD SERVO Q10,11 REG.
PON

Q25 ANT-SW

Q27 REG.
P-CON

IC1

P-CON

SYSTEM u-COM PANELMECHA

POWER DET

IC13 PANEL MECHA DRIVER+B Q3

IC3,Q8BU5V A8V REG.
PON

BU

(X16-251)
IC3 REMO CD DXM6540W
BU5 CD SERVO

Q1,2 SW
PON

Q35 CD-4.7V BU-DET IC7

IC1
SW5

SW5V

BU5V

PANEL u-COM
BU5

KEY MATRIX

ED1 FL

Q3 SW
FL+B

A1 FL +B DC/DC IC20 FL F+/FSW REG. ILL+B Q15,16 SW11V
PON ILL

REG.
PON CD/MD

LEVEL SHIFT
SW3

FL+B F+/F-

KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y

COMPONENTS DESCRIPTION
●SUB-CIRCUIT UNIT (X16-2510-10/X16-2722-70)
Ref. No. IC1 IC2 IC3 IC4 Q1 Q2,3 Q4 Q6 Q7,9 Q8,10 Q11,12 Application / Function Panel µcom 3.3V Regulater Remote Control IC Buffer IC FL BLK SW FL+B SW SW5V ∇ LED SW Red LED SW Green LED SW Blue LED SW It is change into 3.3V from 5V VFD is turned on when Q1’s base level goes “H” FL+B (VDD2) is turned on when Q2’s base level goes “H” The power supply of IC3 isturned on when Q4’s base level goes “L” ∇ LED is turned on when Q6’s base level goes “H” RED LED is turned on when Q7’s base level goes “L” GREEN LED is turned on when Q8’s base level goes “L” BLUE LED is turned on when Q11’s base level goes “L” The power supply of IC and VFD (Logic) which are driven by 3.3V Operation / Condition / Compatibility

● ELECTRIC UNIT (X34-301x-xx/X34-3222-70)
Ref.No. IC1 IC2 IC3 IC4 IC7 IC10 IC11 IC12 Application / Function System µCOM E.Vol & N.C.MPX A8V Ref Power Supply Power IC SW Regulator Muting logic IC Reset IC RDS decoder IN Panel mecha IN1 L IC13 Panel mecha motor driver Panel mecha control L H H IC14 IC20 Q1,2 Q3,4 Q5 Q6,8 Q7,9 Q10,11 Q12 Level meter Buffer SW Regulator B.U.5V AVR SW5V SW14V AUDIO8V AVR SERVO+B AVR SERVO+B AVR (Panel Mecha) SWfor IC7 H L H OPEN CLOSE STOP IN2 L WAIT Operation / Condition / Compatibility Controls FM/AM tuner, the changer, CD/MD mechanism, Panel, volume and tone. Controls the source, volume, tone and FM multiplex detector Output 1.27V Amplifies the front L/R and the rear L/R to 50W or 47W maximum. Power Supply for mp3 Controls logic for muting. “L” when detection voltage goes below 3.6V or less.

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