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CD RECEIVER

KDC-MP925 KDC-W8027
SERVICE MANUAL
Panel assy KDC-MP925 (A64-3226-01) © 2004-02 PRINTED IN JAPAN B53-0131-00 (N) 2439

CD mechanism extension cord (24PIN) : W05-0935-00

Panel assy (A64-3248-02) Panel assy KDC-W8027 (A64-3232-01)

Panel assy (A64-3252-02)

* DC cord (E30-6295-05)

* DC cord (E30-4942-05)

Escutcheon (B07-3078-01)

Mounting hardware assy (J21-9823-03)

* Antenna adaptor (T90-0552-05)

*Remote controller assy (A70-2026-05) : RC-420

*Remote controller assy (A70-2040-05) : RC-505 *Screw set (N99-1723-05) Screw (N99-1734-05)

Plastic cabinet assy (A02-2731-13)

Lever (D10-4674-04) x 2

*Size AA Battery (Not Supplied)

* Depends on model. Refer to the parts list.

TDF PANEL INFORMATION MODEL PARTS NO. KDC-MP925 Y33-1790-61 KDC-W8027

PANEL NAME TDF-M7000

KDC-MP925/W8027
BLOCK DIAGRAM
(X34- )
IC2
8V

AUX IN IC5
8V

Q207,208 PRE MUTE Q203,204

IC13 OP AMP
9V

TUNER
AUDIO OUT

FM AM CD CH

PRE OUT (SUB WOOFER)

Q303,304 AM+B
8V 8V S-METER SW5V 8V BPF

E-VOL & MPX

IC12 OP AMP
9V

SYSTEM E'S+

PRE MUTE Q205,206

PRE OUT (REAR)

AGC
QUAL 8V

IC11 OP AMP
9V

BUFFER
SW5V

PRE MUTE IC6 WOW
8V

PRE OUT (FRONT)

BUFFER

IC4 SP OUT (FL) SP OUT (FR)
8V

IC14 RDS DECODER IC1

IC20 FOCUS SW

POWER IC

SP OUT (RL) SP OUT (RR)

IC9

CD
BU5V 8V SERVO CD4.7V

MUTE DRIVER

BU5V

EEPROM
SW5V

WIRED REMO/ OPEL DISP I/F IC18 P-CON Q23,24 ANT-CON ANT CON P CON

CH
BACK UP BU5V

SYSTEM MICROPROCESSOR

Q25 EXT AMP Q26 DIMMER TEL MUTE Q29 DIMMER TEL MUTE EXT.AMP.CON

Q501 EEP5V IC1 EEPROM

BU5V

ACC DET Q27 B.U DET Q1,2 BU5V BU5V Q3,601 RESET
BU5V

ACC

TDF UNIT (X16-208)

BACK UP

DISPLAY UNIT (X16-253)
IC7 LEVEL SHIFT IC8 LEVEL SHIFT LED IC11

IC8 2.5V
PANEL5

SW5V

SW 5V Q502,503 PANEL 5V Q4,5 SW 14V Q6-8

PANEL5V IC15 MOTOR DR IC16 MOTOR DR

LED
ILL+

IC2 MASK ROM u-COM IC4 FLASH ROM IC10 BPF

Q6,10 PANEL SW5V IC6 3.3V Q5 SW3.3V Q4 FL3.3V Q2,3 FL+B

SW14V

SERVO

PANEL MECHA
SW5V

DC/DC

A8V

A8V

9V

Q9,602 SERVO SERVO Q11-14 FL+B

IC9 REMO FL

AGC

FL+B

IC19 CD4.7V SW REG

DC/DC
FAC

SWITCH UNIT (X16-256)

ROTARY ENCODER

KEY

KEY MATRIX

RESET SW

KEY ILL

2

KDC-MP925/W8027
COMPONENTS DESCRIPTION
SUB CIRCUIT UNIT (X16-2080-10)
Ref No. IC1 Application / Functions E2PROM E2PROM for security Operation / Condition / Compatibility

DISPLAY UNIT (X16-2530-11)
Ref No. IC1 IC2 IC4 IC5 IC6 IC7 IC8 IC9 IC10 Q1 Q2 Q3,4 Q5 Q6,200 Q7,8 Q9 Q11 Application / Functions Panel microprocessor ROM IC AVR AVR Buffer IC Buffer IC Remote control IC Logic IC Analog IC 3.3V Regulator 2.5V Regulator FL +B SW 3.3V SW FL 3.3V SW Remote control ON SW FL BLK SW Red LED SW Operation / Condition / Compatibility Panel control microprocessor Graphic ROM For 3.3V power supply For 2.5V power supply Level shift buffer IC (5V3.3V) Level shift buffer IC (3.3V5V) For Remote control sensor Control for FL contrast Spectrum analyzer IC While PAN5V is applied when 3.3V regulator output is +3.3V While PAN5V is applied when 2.5V regulator output is +2.5V FL +B (VDD1) is turned on when Q3 base level goes H SW3.3V is turned on when Q5 base level goes L FL +3.3V (VDD1) is turned on when Q200 base level goes H The power supply of IC8, 10 is turned on when Q10 base level goes H VFD is turned on when Q9 base level goes H Red LED is turned on when Q11 base level goes H

SWITCH UNIT (X16-2560-10)
Ref No. Q1 Q2 Q3 Q4 Application / Functions DSI LED SW KEY Illumination SW (Green) KEY Illumination SW (Red) KEY Illumination SW (Blue) Operation / Condition / Compatibility DSI LED blinks when Q1 base level goes H/L KEY Illumination SW "ON" when the Q2 base level goes H KEY Illumination SW "ON" when the Q3 base level goes H KEY Illumination SW "ON" when the Q4 base level goes H

CD PLAYER UNIT (X32-5540-00)
Ref No. IC1 IC2 IC3 IC4 IC5 IC6 IC7 IC8 Application / Functions Mechanism control microprocessor DSP Decoder IC BTL driver AVR AVR AVR Selector IC CD signal processor, RF amp, Servo control MP3/WMA decoder Focus, Tracking coil, Feed and Spindle motor driver IC SW3.3V AVR BU3.3V AVR BU2.5V AVR Serial audio data selector Operation / Condition / Compatibility

3

KDC-MP925/W8027
COMPONENTS DESCRIPTION
Ref No. IC9 Q1,4 Q3,5 Q6 Q7 Q8 Q9,10 AVR Level shift FET Level shift TR Level shift TR Level shift TR APC Switching TR Application / Functions Operation / Condition / Compatibility 3.3V AVR (IC2 DAC part) Level shift (3.3V - 5.0V) Level shift (3.3V - 5.0V) Level shift (3.3V - 5.0V) Level shift (3.3V - 5.0V) Auto power control Sub beam delay control switch

ELECTRIC UNIT (X34-3030-10, X34-3032-71)
Ref No. IC1 IC2 IC3 IC4 IC5 IC6 IC7 IC8 IC9 IC10 IC11~13 IC14 IC15,16 IC18 IC19 IC20 Q1,2 Q3,601 Q4,5 Q6~8 Q9,602 Q11~14 Q15,16 Q17~19 Application / Functions System control IC E-VOL & tuner IC Power supply IC Audio power IC System IC Audio control IC Power supply IC Reset IC Muting logic IC Buffer IC OP AMP RDS decoder Motor driver P-CON IC Power supply IC Analog SW BU 5V AVR SW5V AVR SW14V AVR Audio 8V AVR Servo +B AVR Illumination & DC/DC +B AVR Audio 10.5V AVR Pre Amp & -9V AVR OP AMP for Pre-out Q20,22 work as differential amplifier, Q21 wark as driver and +9.4V is supplied to Q20~22 Q23,24 Q25 Q26 Pre Amp & +9V AVR OP AMP for Pre-out P-ANT SW Buffer Small lamp det. SW When Q23 base level goes H, P-ANT SW output is +14V EX amp control buffer When Q26 base level goes H, Q26 turned ON Operation / Condition / Compatibility System control microprocessor E-VOL. FM/AM tuner & stereo decoder For A8V AVR Audio power amplifier For System E's control For WOW/FOCUS control -9V AVR (For 4.5V Pre-out) When BU5V line voltage is less than 3.5V, this IC output line is "L" Control for MUTE, P-ANT & RESET muting For spectrum analyzer For 4.5V Pre-out Decode for RDS signal Control for Panel mechanism motor Power control IC Switching regulator IC for CD4.7V Control for WOW/FOCUS IC (IC4) While BU is applied when BU5V regulator output is +5V When Q601base level goes H, SW5V regulator output is +5V When Q5 base level goes H, SW14V regulator output is +14V When Q6 base level goes H, A8V regulator output is +8.3V When Q602 base level goes H, S+B regulator output is +7.5V When Q11 base level goes H, AVR output is +9.2V When Q16 base level goes H, AVR output is +10.5V Q18,19 work as differential amplifier, Q17 wark as driver and -9.1V is supplied to

4

KDC-MP925/W8027
COMPONENTS DESCRIPTION
Ref No. Q27 Q29 Q30,31 Q201 Q202 Q203~208 Q210 Q303,304 Q305 Q501 Q502,503 Q603 Application / Functions BU detector ACC detector Muting driver Buffer E-VOL muting SW Pre-out muting SW AGC AM +B SW Buffer E2P 5V SW Panel 5V SW SW Operation / Condition / Compatibility When Q27 base level goes H, Q27 turned ON When Q29 base level goes H, Q29 turned ON When base level goes L, muting driver is turned ON Noise detect buffer amp When Q202 base level goes H, muting SW is turned ON When base level goes H, Pre-output is muted For AGC for spectrum analyzer When Q303 base level goes H, AM +B is out to tuner unit Composite signal buffer for RDS When Q501 base level goes L, E2P 5V is out for E2PROM When Q503 base level goes H, Panel 5V is out When Q603 base level goes H, Q603 is turned ON

MICROCOMPUTER'S TERMINAL DESCRIPTION
SYSTEM MICROPROCESSOR : UPD703030GC041 (X34-303 : IC1)
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Pin Name PLL DATA AM+B (FM+B) PAN E2P DATA PAN E2P CLK EVDD EVSS AFS BEEP REMO P MUTE SVR IC2 SDA IC2 CLK P STBY P CON WOW MODE2 I/O I/O I/O O I/O I/O O O I O O I/O I/O O I/O O Description / Processing Operation Data input/output terminal for Tuner front-end AM+B (AM operation : H) FM+B (FM operation : H, Last FM : H with RDS, RBDS model) Variable illumination D/A converter, E2PROM DATA terminal Variable illumination D/A converter, E2PROM CLK terminal VDD 5V GND Time constant switching for noise detection (FM seek, AF search, AUTO 0 : L, Receiving : H) BEEP audio output terminal Remote control input terminal Audio power IC muting control terminal (POWER OFF, ALL OFF, TEL MUTE : L) Audio power IC SVR discharge circuit control terminal CD mechanism, IC2, IC5, ROM correction DATA line CD mechanism, IC2, IC5, ROM correction CLOCK line Audio power IC Stand-by terminal (POWER IC ON, ALL OFF : H, POWER IC OFF : L) Power control terminal (POWER ON : H, POWER OFF, ALL OFF : Hi-Z) WOW control terminal 1 Fig.

5

KDC-MP925/W8027
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32,33 34 35,36 37 38 39 40 41 42 43 44 45,46 47,48 49 50 51 52 53 54 55 56 57 58 59 60 61 Pin Name TEST DIAG MUTE PRE MUTER PRE MUTEL BU DET ACC DET FOCUS EXT AMP CONT DIMMER I/O I O O O I I I/O O I NC (GND) Over voltage/Over current detection terminal (Normal : H, Bad condition : L) MUTE output terminal (ON : OPEN, OFF : L) PREOUT (Rch) muting control terminal PREOUT (Lch) muting control terminal Momentary power dropped detection terminal (No Backup, Momentary power dropped : H, Backup : L) ACC detection terminal (With ACC : L, Without ACC : H) WOW/FOCUS control terminal (FOCUS HI : H, FOCUS LOW : L) External amplifier control terminal Small lamp detection terminal (ON : L, OFF : H) Antenna control/Destination select terminal (TUNER ON : H) SW14V, SW5V control terminal (POWER ON : H, POWER OFF : Hi-Z) FL, illumination control terminal (ON : H, OFF : Hi-Z) Reset input terminal Sub clock (32.768KHz) Connect to 1µF capacitor Main clock (20MHz) GND AVR 5V NC Communication request to external slave unit (Request : L) Mute request from external slave unit (MUTE : H). External slave unit (ON : H, OFF : L) Reset output to external slave unit (Normal : L, After system reset : H 400ms or more and then L) CD4.7V output terminal (CD : H, Except CD source : L) Destination select terminal IC2 destination select terminal Panel 5V control terminal (ON : H, Momentary power dropped : Hi-Z) E2PROM, D/A converter power supply control terminal (ON : L, OFF : Hi-Z) DSI control (ON : L, OFF : Hi-Z) Communication request to panel microprocessor Reset output to panel microprocessor (Normal : H, Reset, Momentary power dropped : L) WOW control terminal AVR 5V GND Panel microprocessor control terminal (POWER OFF, ACC OFF : L) Reset output to CD mechanism (Normal : H, Reset : L) Stop request to CD mechanism (STOP : L, CD : H) CD DOWN SW detection terminal (CD disc chucking : H) CD mechanism loading/ eject selector (STOP, Brake : Hi-Z, LOADING : L, EJECT : H) 1 Description / Processing Operation Fig

ANT CONT(TYPE2) I/O P ON ILL ON RESET XT1/XT2 REGC X2/X1 VSS VDD CLKOUT LX REQ M LX MUTE LX CON LX RST CD MECHA+B TYPE0/TYPE1 IC2 TYPE0/TYPE1 PAN5V E2P5V DSI MC REQ PAN RST WOW MODE3 DVDD DVSS SC CON M RST M STOP CD SW3 LO/EJ I/O I/O I O I O O O I I O I/O I/O O O O O O O I I/O

6

KDC-MP925/W8027
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Pin Name MOSW FPM MOTOR B FPM MOTOR F FPM MOTOR O FPM MOTOR C O DATA O CLK O CE M MUTER AVDD AVSS AVREF M MUTEL PAN DET PHONE FPM SW4 FPM SW1 FPM SW2 FPM SW3 FPM PHOUT S METER NOISE IFC OUT POWER DET CD SW4 R CLK LX REQ S SC REQ CD SW1 CD SW2 R QUAL R DATA LX DATA S LX DATA M LX CLK PAN RX PAN TX WOW MODE1 PLL CLK I/O O O O O O I/O I/O I/O I I I I I I (3.75V or more : No mechanism, 1.25V or more : H, Less than 1.25V : L) I I I I I I I I I I I I I I I I I O I/O I O O I/O FPM mechanism position detect terminal FPM mechanism position detect terminal FPM mechanism position detect terminal FPM mechanism position detect terminal (2.2V or more : H) S meter detection terminal FM noise detection terminal Front end IFC OUT input terminal (Receiving station : 2.5V or more) Audio power IC DC offset detection 8cmDISC detection terminal (8cmDISC : L) RDS decoder clock input terminal Receive request from external slave unit (Request : L) Communication request from panel microprocessor LOADING SW detection terminal (LOADING start, POWER OFF : L) 12cmDISC detection terminal (12cmDISC, POWER OFF : L) RDS decoder QUAL input terminal RDS decoder DATA input terminal Data input from external slave unit Data output to external slave unit Clock input/ output with external slave unit Data input from panel microprocessor Data output to panel microprocessor WOW control terminal Clock input/ output to Tuner front-end 1 2 2 2 2 Description / Processing Operation CD mechanism motor driver SW (LOADING, EJECT, Brake : H) FPM mechanism (Slider) control terminal FPM mechanism (Slider) control terminal FPM mechanism (Angle) control terminal FPM mechanism (Angle) control terminal External display DATA terminal External display CLK terminal External display chip enable terminal Mute request from CD mechanism (Rch ON : L) AVR 5V GND Connect to P-ON (29PIN) Mute request from CD mechanism (Lch ON : L) PANEL, E2PROM detection terminal (With panel : L, Without : H) PHONE detection terminal (TEL MUTE : 1V or less, NAVI MUTE : 2.5V or more) FPM mechanism position detect/ CD Mechanism detection terminal 2 2 2 2 2 2 Fig

7

KDC-MP925/W8027
MICROCOMPUTER'S TERMINAL DESCRIPTION
Fig.1 WOW mode operation
MODE BYPASS TuBass 3D-STEREO FOCUS LOW FOCUS HI WOW LOW WOW HI WOW MODE1 WOW MODE2 WOW MODE3 L L L H H H H L H L L L H H L L H L L H H FOCUS Don't care Don't care Don't care L (Hi-Z) H L (Hi-Z) H

Fig.2 FPM motor control
SLIDE FPM MOTOR B L H L H FPM MOTOR F L L H H FPM mechanism operation Standby Backward operation Forward operation Brake ANGLE FPM MOTOR O L H L H FPM MOTOR C L L H H FPM mechanism operation Standby Angle open direction Angle close direction Brake

PANEL MICROPROCESSOR : 703132GJ011-A (X16-253 : IC1)
Pin No. 1~7 8 9 10~17 18 19 20 21 22 23 24 25~27 28,29 30,31 32 33 34 35,36 37 Pin Name D14~D8 3.3VDD VSS D7~D0 FL GCP1 SC REQ MC REQ SC CON FL BLK 2.5V VDD VSS KS5~KS3 TDI/TDO KS2,1 TRST ROTARY CCW ROTARY CW TMS/TCM 3.3VDD I/O I/O I/O O O I I O O O I I I O Description / Processing Operation External ROM data input/output terminal AVR 3.3V GND External ROM data input/output terminal FL bright control terminal Communication request to system microprocessor (H : Request) Request from system microprocessor (H : Request) Panel microprocessor control (H : While operation) Display control SW for FL driver (H : Display ON, L : Display OFF) AVR 2.5V GND Key scan output terminal NC Key scan output terminal NC Volume input terminal Volume input terminal NC AVR (3.3V)

8

KDC-MP925/W8027
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. 38 39~42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57,58 59~61 62 63 64,65 66 67 68,69 70,71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 Pin Name VSS KI1~KI4 FLGCP2 NC SYS TX SYS RX FL CLK3 KI5 FL DATA3 SCK1 NC FL DATA2 CLK IN1 NC FL DATA1 3.3VDD X2/X1 CVSS/CKSEL/PSEL 2.5V VDD VSS MODE0,1 PAN RST VREF NC AVSS1,0 VREF WAVE IN F06 F05 F04 F03 F02 F01 NC 2.5V VDD VSS VREF CON NC FLGCP3 NC I/O I O I O O I O I O I O I I I I I I I I O O GND Key return input terminal FL bright control terminal NC DATA input from system microprocessor DATA output to system microprocessor Clock output to FL driver Key return input terminal (SRC, OPEN, EJECT interrupt port) DATA output to FL driver Clock input from FL driver NC DATA output to FL driver Clock input from FL driver NC DATA output to FL driver AVR (3.3V) Main clock (5MHz) GND AVR 2.5V GND GND Reset signal request form system microprocessor (L : Reset) Connect to 83PIN (VREF) NC GND Connect to 83PIN (VREF) Audio signal input terminal Spectrum analyzer input terminal (BPF 10KHz) Spectrum analyzer input terminal (BPF 3.3KHz) Spectrum analyzer input terminal (BPF 1KHz) Spectrum analyzer input terminal (BPF 330Hz) Spectrum analyzer input terminal (BPF 150Hz) Spectrum analyzer input terminal (BPF 63Hz) NC AVR 2.5V GND VREF control terminal (Connect to VREF terminal) NC FL bright control terminal NC Description / Processing Operation

9

KDC-MP925/W8027
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. 87 88,89 90 91 92 93 94 95 96 97 98 99 100 101 102 103,104 105 106 107 108 109,110 111 112 113 114~117 118~123 124 125 126~133 134 135 136~143 144 Pin Name FL LATCH NC REMO ON FL3.3V SW FL+B SW 3.3V SW NC OE NC WE/WR 3.3V VDD EVSS CE ROM CE F/ROM FLASHROM CHECK NC GREEN LED RED LED DISP LED BLACK DISP NC SA RST 3.3V VDD EVSS NC A21~A16 2.5V VDD VSS A15~A8 3.3V VDD EVSS A7~A0 D15 I/O O O O O O O O O O O O O O O O O O O I/O Latch output to FL driver IC NC Power supply control for remote control IC (H : ON, Hi-Z : OFF) FL3.3V control terminal (H : ON, Hi-Z : OFF) FL+B control terminal (H : ON, Hi-Z : OFF) 3.3V control terminal (L : ON, Hi-Z : OFF) NC OE control for Flash ROM (L : DATA transmission, Hi-Z : Wait ready) NC WRITE/READ control for Flash ROM (L : Writing, Hi-Z : Wait ready) AVR 3.3V GND CE control for ROM (L : DATA transmission, Hi-Z : Wait ready) CE control for Flash ROM (L : DATA transmission, Hi-Z : Wait ready) Writing condition check for Flash ROM (H : OK, L : NG) NC Select for illumination (GREEN H : ON, L : OFF) Select for illumination (RED H : ON, L : OFF) DISP LED control (Normal H: ON, L : OFF) Light up to DISP LED (H : ON, L : OFF) NC Reset for spectrum analyzer (H : Reset, L : Normal) AVR 3.3V GND NC Address bus AVR 2.5V GND Address bus AVR 3.3V GND Address bus External ROM data input/output terminal Description / Processing Operation

10

KDC-MP925/W8027
TEST MODE
How to enter the test mode
While pressing and holding the Preset 1 and Preset 3 keys, reset the unit.

Test mode specifications of the CD receiver
· Forced ejection is inhibited in the reset start operation. When the unit is reset while a CD is loaded in it, resetting does not recognize the CD. · Each press of the Track Up key jumps to the following track numbers : No. 9No. 15No. 10No. 11No. 12No. 13No. 22 No. 14No. 9 (The cycle restarts from here.) · Each press of the Track Down key jumps to the previous track number to the track being played. · When the number of total trucks of the MP3 disc or the WMA disc is less than 9, 1st truck is played. · When the disc media is CD, A short press of the Preset 1 key jumps to the track number 28. · When the model is equipped the CD mechanism assembly adapted for MP3 or MP3/WMA disc, the mechanism name and version number are displayed during the FL model is lower stand and Display mode of LCD model is DNPS.

How to exit from the test mode
While holding the Preset 6 key, reset the unit. Note : Turning ACC off, power off, momentary power down or panel detaching does not terminate the test mode.

Initial status in the test mode
· Sources : ALL OFF · Display : All segments are lit. · Volume : -10dB (displayed as "30") · Loudness : OFF · CRSC : OFF regardless of the presence of switching function. · SYSTEM Q : Flat · WOW : All OFF · BEEP : When pressing any keys, the buzzer generates a beep at any time. · AUX : ON · MENU SYSTEM Q : OFF · Variable model : Default is white · Multifunction : Source dependency (Preset, SCAN, etc.)

Audio-related specifications
· Pressing the key on the remote initiates the audio adjustment mode. · BL/F key on the Fader initials. · Continuous holding of a remote control key is inhibited, and workings are short press of any keys. · Bass, Middle and Treble are adjusted in 3 steps of -8 / 0 /+8 with the Track Up/Down keys (Default value at 0). · Balance is adjusted in 3 steps of L15 / 0 / R15 with the Track Up/Down keys (Default value at 0). · Fader is adjusted in 3 steps of R15 / 0 / F15 with the Track Up/Down keys (Default value at 0). · HPF is adjusted in 2 steps of OFF / 170Hz (or 200Hz) with the Track Up/Down keys (Default value at OFF). · LPF is adjusted in 2 steps of OFF / 120Hz with the Track Up/Down keys (Default value at OFF). · Bass f, Bass Q, Bass EXT, Middle f, Middle Q and Treble f are not dealt with by the audio adjust. · The WOW key passes during the audio adjustment as following steps (WOW model only).
Ordered 1 2 3 4 5 6 TruBass OFF ON OFF OFF OFF ON FOCUS OFF OFF LOW HIGH OFF HIGH SRS OFF OFF OFF OFF ON ON Display SRS WOW OFF SRS TruBass ON FOCUS LOW FOCUS HIGH SRS ON SRS WOW HIGH

Special display in Tuner mode
When any of the following messages is displayed in Tuner mode, the F/E may be abnormal. · "TNE2P NG" : The EEPROM is set to the default (unstable values) because the F/E was shipped without passing through the adjustment process, etc. · "TNCON NG" : Communication with the F/E is not possible.

Forced switching of K3I
Each press of the Preset 6 key in Tuner mode should switch K3I from AUTOForced WideForced MiddleForced NarrowAUTO. The initial status is AUTO and the display shows these modes as follows. · AUTO : FMA · Forced Wide : FMW · Forced Middle : FMM · Forced Narrow : FMN

11

KDC-MP925/W8027
TEST MODE
Menu-related specifications
· A short press of the Q key initiates the menu mode. · Pressing the DNPP key on the remote initiates the Menu mode. · Continuous holding of a remote control key is inhibited, and workings are short press of any keys. · Contrast is adjusted in 3 steps of 0 / 5 / 10 with the Track Up/Down keys (Default value at 5).
AM key Display panel E2PROM condition. (Display) P­ROM OK (Registered code) P­ROM NG (Code is write in error) P­ROM WAIT (Unregistered code) P-ROM NON (Panel security nonfunctional)

Panel mechanism
· Auto-panel close inhibition when set-in the CD. · The panel operation inhibition at power ON/OFF and ACC ON/OFF. · The panel position changing EjectLast with a short press of the PLAY/PAUSE keys.

Backup current measurement
When the unit is reset while ACC is OFF (i.e. by turning Backup ON), the MUTE terminal goes OFF in 2 seconds in place of 15 second. (The CD mechanism is not activated at this time.)

Other specifications Special display when the display is all on
Pressing the Preset keys while the power is ALL OFF displays the following information.
[PRESET 1] Version display (8 digits, Month/Day/Hour/Minute) (Display) SYS xxxxxxxx : PAN xxxxxxxx : FL model only MEM xxxxxxxx : 4 contrasts FL model only [PRESET 2] Serial number display (8 digits) (Display) SNo xxxxxxxx [PRESET 3] Short press : View power ON time. (The All OFF period is not counted.) 2 seconds long press/hold : Clear power ON time at the power ON time displaying. (Display) PonTim xxxxx [PRESET 4] Max. 60000 (hours)

· No displays such as "CODE OFF/ON" during Power-ON. · The LINE MUTE inhibition time is one second from 10 seconds when start-up the test mode. · Do not write the security code with the security jig on the test mode. · Do not write the serial with the serial writing jig on the test mode. · OEM display output is not stop if OEM display not connection on the test mode.

Switching the frequency span (K/M type)
While holding the Preset 1 key and Preset 5 key, reset the unit.

Demonstration mode 1. How to enter to the Demonstration mode
1. Hold down the [Q] key and [TI (AME)] key button when the power is on and press the Reset button. 2. This will enter to the Demonstration mode.

Short press : Display CD operation time. 2 seconds long press/hold : Clear CD operation time at the CD operation time displaying. (Display) CDTim xxxxx Max. 60000 (hours)

2. How to chancel the Demonstration mode
1. Hold-down the Preset [5] key button when the power is on and press the Reset button. 2. This will cancel the Demonstration mode.

[PRESET 5]

Short press : Display CD ejection count. 2 seconds long press/hold : Clear CD ejection count at the CD ejection count displaying. (Display) EjeCnt xxxxx Max. 60000 (times)

[PRESET 6]

Short press : Display Panel open/close count. 2 seconds long press/hold : Clear Panel open/close count at the Panel open/close count. (Display) PnCnt xxxxxx Max. 600000 (times)

FM key

Display ROM collection version. (Display) ROM R xxx Invalid : "R ­ ­ ­"

12

KDC-MP925/W8027
TEST MODE
Security information 1. Forced Power ON mode (All models)
Even when the security (Cord) is approved, resetting the unit while holding the Q and Preset 4 keys makes it possible to turn the power ON for 30 minutes. After 30 minutes have elapsed, it is not possible to return to the previous condition unless the unit is reset again. (Security code is doing not clear at this mode. Put the power on fill-in.) When panel security was set up for the unit when it is can not power on. In this case, you can use new ROM for the TDF panel that the unit can be power on for test mode. Note : Don't enter the panel security set up for new ROM panel. User can not power on the unit.

3. How to inscription the panel security code
1. Enter the test mode. 2. Pressing the AM key on all lighting, check the "P-ROM WAIT" display. 3. The NEXT key is long press 2 seconds, writing the code. 4. Display is "P-ROM OK". 5. Exit from the test mode. Note : E2PROM connection is NG when display is "P-ROM NG", so detach the panel and rewrite after the display is "PROM WAIT". This code can not clear.

4. Simple way to clear the security code (K type only)
1. During code request mode, press the Track UP key for at least 3 seconds while holding down the AUTO key. (­ ­ ­ ­ will disappear) 2. Enter, "KCAR" with the remote controller as described below. · Press the remote controller 5 key twice, and press the Track Up key. (Enters a "K" ) · Press the remote controller 2 key three times, and press the Track Up key. (Enters a "C" ) · Press the remote controller 2 key once, and press the Track Up key. (Enters an "A" ) · Press the remote controller 7 key twice, and press the Track Up key. (Enters an "R" ) 3. Security function is canceled and unit sets to All-Off mode. 4. Code request mode appears if a mistake was made in entering the numbers.

2. Method of registration of the security code after EEPROM (F/E) replacement (Code security model)
1. Enter the test mode. (See How to enter the test mode) 2. Press the MENU key to enter the Menu mode. 3. When the message "Security" is displayed, press and hold the Track Up/Down key for 1 second to enter the security registration mode. 4. Enter the code using the FM/AM/Track Up/Track Down keys. FM key : Number up AM key : Number down Track Up key : Cursor right shift Track Down key : Cursor left shift 5. Hold down the Track Up key for at least 3 seconds and the message, "RE-ENTER" appears, so once again enter the code according to Step 4 above. 6. Press and hold the Track Up key for 3 seconds until "APPROVED" is displayed. 7. Exit from the test mode. (See 2. How to exit from the test mode) Note 1 : All Clear is not applicable to the security code of this model. Note 2 : When the F/E changed, need re-inscription because the panel security is clear.

13

A

B

C

D

E

1

KDC-MP925/W8027 PC BOARD (COMPONENT SIDE VIEW)
ELECTRIC UNIT X34-3030-10, X34-3032-71 (J74-1473-32)

CN1 CN2
2 12 11 2 1

IC4

R263

R264

R262

1

2 C100 9 8 16 1 L1 1

24 25

2
R46 R48

R47

J1
C205

D1
C215

C277

C272

C274

C273

Q13
E

Q24

R29 R49

BE

Q12 Q11

R42

C275

C204

C203

W3

1

28

23

11

I GO

EB

R7

Q6
C299 8 5

BE BE

Q1
E

C3 C8 R33

R34 C41

3

IC3

R244

C264

C265

IC2 IC5
C259 33 34 44 1

B

C250

BE

Q7

Q8
E

R14 R6

C47

IC18
8 1

C298

C297

BE

5

4

D15

B

C27

MUTE 22 12

CN3 D504
R508 R503 R504 16 15

IC13

D17

1 8

4 5

Q25

D16

EB

C240

R245 R221

B

BE BE

C267

14 R609 24 25

Q203

C5 C6

Q204

R32

Q9
E

IC11
C266 1 8 4 5

15 C234 R219 C238 13 12

R608

Q26
EB C9 C270

R232

C223

C43 R35

C42

C700

Q205
R233

5 8

IC20

C222

IC12
1 C271 4 C30 B

Q206

C241 4

C226

C227

1 TEST

R170

4
D7
6

C228 C229

BE BE

36 37

R623 R218 R624

R220

IC6
48

C201 C233

C218
R164 R163 R162 R160 R159 L102

R217 1 R205

B

CLK DATA

R625 R626

R180

R169

Q15
C31 5 E

R101 25

R179 R172 R171

1 100

4

D8

X2

26

C36

IC1

C101 R106 R107 5V R108 50 R109 51 R119 R121 R123 R525 R120

CN4
RST

24

R122

R127 R129 R131

5

R153 R152 R186 R148 R144 R143 76 R142 R136 75 R141 R134 R135 R133

R102

X1

R167 C48

R184 R183

C219
C202 R145 R146

C300

Q208 Q207 C269

C268

R526

1

1

2

3

1

28

CN6 A2
C18 L2 C12

CN5
15 1

6
P1
C16 L3 C23 C10

7

14

F

G

H

I

J

KDC-MP925/W8027
1

DISPLAY UNIT X16-2530-11 (J74-1587-02)

SWITCH UNIT X16-2560-10 (J74-1590-02)

D1

24 25 C279
R261

S15

20

D22

S9

D3

SRC

18

SHIFT

D2

S12

C275

C278

1

C10

S17

6

D5

D20

D4

C206

L7

17

A1

S14

D21

S10

W2

2

FM

CN3
C9

3

S4 D19 S19
AM SCRL

C314

L305

S16

2 1

4

2 1

CN7

5

L307 R308 R307 C311 R306 X3 C502 24

Q305

BE L306

4

R305

S18

S6

D18

D7
RESET

C8

S20

D6

4

AUTO

Q1

C7

Q4 R17

S13

EB

3

R16

D17

D25

C5

R15

R14 EB R12 EB

Q3

X34-303x-xx
2

D15

S11

D9
MENU

S8

R13

S2

Ref. No. IC1 IC2 IC3 IC4 IC5 IC6 IC11 IC12 IC13 IC18 IC20 Q1 Q6 Q7 Q8

Address 5D 3D 3A 2E 3D 4D 3C 4C 3C 3B 4C 3A 3A 3A 3A

Ref. No. Q9 Q11 Q12 Q13 Q15 Q24 Q25 Q26 Q203 Q204 Q205 Q206 Q207 Q208 Q305

Address 3A 2A

D8

BE

S7

5

Q2

2A 4C 2B 3B
3

D14
C4

S3

3A
1

4B 3C 4C 4C
ED1

D13

D11

1

S1

D10

6

4C 3C 3C 4F

IC8
3 4 2

D13 D14

1

X16-2530-11 Ref. No. Address 6H

X16-2560-10 Ref. No. Q1 Q2 Address 4I 5I Ref. No. Q3 Q4 Address 5I 4J

Refer to the schematic diagram for the values of resistors and capacitors.

IC8

D12

VOLUME

S21

7

15

K

L

M

N

O

1

KDC-MP925/W8027 PC BOARD (FOIL SIDE VIEW)
ELECTRIC UNIT X34-3030-10, X34-3032-71 (J74-1473-32)

D211

D209

D214

D213

D215

D216

D212

D210

C2 BU

D301

D208

R259 R260

2

TH1

C276

R31

R257 R256

C214

D207

L201

C208

GND

C209 R201 C210

Q23
EB

C207

FM+B

D206 D205

R204

Q202

D12

D13
R254 R255 R231 R230 R242 R243 5 4

D501
C303 C211 R202 C212 R268 R502 L303
AM+B

BE

Q201

8

5

R304

R248

R509

R511

R512

R269

L304

R510

R267

R501

C304

C221

C220

3

1

4

B

E EB

C257 C255 C253 C251

C258 C256 C254 C252

R303

R246

R249

R247

R251

R250

R266 C290

C305 C505

R506 R507 R505

R225

R223

VDD

R224

R222

R226

C309 C310

8

1

R601 R605

R236

R234

C307

IC14

C501

R237

R235

R239

IF1+B

4

IC9
1 R161 R158 RQUAL R156 R155 R154 R151 C109 7

Q30 D20 Q31 D21 B E
R173 R174 R176 R175 R178 R177

Q603
R181 R182 R17 R18

R165 R166

R621

9

16

BE

BE

Q16
EB
L4

C104

C110 R150 R149 C603

R185

C102

R103

C111

D9

C103

R241

14

R613

R238

R240

R228

D202 D201

C232 C237 C235 C236 R607 R610 R611 C231 C239 R603 R612 R206 R604 C224 C230 R606 C225 C602 R210 C601 R207 R209 R602 R614 R208 8

C313

R227

R229

FPM1+ FPM1C312

R280

PLL+B

Q303

R279

R253

R252

D502

D503

C199

Q304

IC17

C213 R203

C260 C261 C262 C263

C319 C318

+9V 9V

R126 R125 R521 R124 R522 R524 R523 R118 R117 R115 R116 C106 R110

R111 R113

C39

Q21

5

SERV GND SERV +B SW4.7V R130 R128 R132

X34-303x-xx Ref. No. Address Ref. No. Address IC7 5O 5O 4N 5P 4L 6M 5M 6O 3Q 4P 3Q 3Q 3Q 4O 5O 5O 5O 6O Q21 Q22 Q23 Q27 Q29 Q30 Q31 Q201 Q202 Q210 Q303 Q304 Q501 Q502 Q503 Q601 Q602 Q603 5O 5O 2O 3P 3P 4N 4N 3M 3M 5P 3L 3L 5O 6N 6O 3P 4Q 4N
6 5 1

IC16
5

IC8
2 1 3 4

BE BE

Q17

10

6

R140 R139 R138 R137

R112 R114

L101

C107

C40

8

IC7
1 R25

Q22

DATA

CLK

R24 R21 R27 R20 R22 R19 C38

SUB CIRCUIT UNIT X16-2080-10 (J74-1476-02)
14 2

Q501

BE

IC8 IC9 IC10 IC14 IC15

R615 R616 R618 R617

BU5 DGND

R701

DGND

BE BE

11

C316

R516 R515

IC15

D508

R527 R519 R518 R517

Q20
R11 SW4.7 C11 1

D505 Q502
R513
B E

R514 EB

Q503

10

C317

R10

4

FPM2+

FPM2

PAN5V FAC1

E2P5V

J1

IC16 IC19
1

R620

R520

FAC2

D506 D507
E GND

IC19
C504 C13 R12 5 C503 8

6
15

FL GND

Q3
1 4 8 CP1

D601 D509

IC1

5

Q4 Q5

X16-2080-10 Ref. No. IC1 Address 6K

Q14 Q16 Q17 Q18

7

Q19 Q20

Refer to the schematic diagram for the values of resistors and capacitors.

16

C22

Q2

D5

FL+B

C37 R26 R23

D101

BE BE

Q18 Q19

C3

A GND

D10
C

EB

C217 C216

R28

GND

P

Q

R

S

T

KDC-MP925/W8027
1

DISPLAY UNIT X16-2530-11 (J74-1587-02)
RR AUXL AUXR

SWITCH UNIT X16-2560-10 (J74-1590-02)
Q6
R201 R204 24

FL FR

L8

L9
25

R28

Q9

R13
CH GND CH+B NGND NL FGND RGND AUXG

BE

ESDGND

BE R29

Q200

R30

NR

RL

BE

C289 C281 C285 C282 C280 C287 C288 C283

C284

R265 C286

IC2

R203

C12 R1

C36
48 21 1 R25 20

C35

R202 C200

2

D24 R11

R10

DSI

R2

C11 R9

R31

R28

R30

R15
C45 D19

C25

C26

R43

D204 D203
C14
EB

D6
ILL+B

C38 C39
CP19 CP21 C37 40

IC3
CP30 1 CP23 1 8

Q14

R5

D12

D13

D10

D11

CP17
L10

R45 C44 R44

EB

Q5
EB BE
W1

IC9
5 CP200

4

CP20 CP18 CP15
C15

Q29
D2

CP24 CP14 C27 CP22
R49 C14 CP11

C7

D18

R36

R37

R8

Q4

CP13
109

R254

CP16
SW14V

CP300
FROM CHECK CP10

C16

144

CP12

CP9
108

3

1

BU5V

C17

C46 R38

R255

R231 R41 R230 R4 R3 R242 R243 EB

Q601
BE C701 SERVO+B

R2

BE R9

Q2

B E Q27 A8V

R1

C13

R14

C4

D3

R11

IC1

EB

C18
CP26

R12 R10 R50 R9 C12
CP8 73

CP25

D4

Q602

Q3

DI CLK
R5

R16 CP7 GREEN
R16 C21

RED KI5 KI4 KI3 KI2 KI1

36 R8 C10 C9 72 37 L4 DO

R8

C8

L5 L6

X1

C11 R6 C7

L3 E2PDATA

E2P5V

R7

L7 DGND
1

TEST E2PCLK
28

4
DSI

RST

R3

DSI

C296

RST SYSRX SYSTX SCREQ SCCON MCREQ ANA PANRST REMO

R4 KI4

KS4

GREEN

CN1

1

CN2

RED

R276 R274

KI5

R271

KI3 KI2

KS3

CN1

KI1

9V

C34

R270 8 5
R275

PAN5V

C35

8

5

R278

IC10
1 1

KS4 KS3 KS2 KS1 VOLA
R4 VOLB

1

32

KS2

PAN5V

IC7
1 4 R25
C37 R26 R23

ESDGND

ILL+B FL+B FLGND PANDET CP3

24

VOLB

C32

4 C291 R272
R273 C294 C295

X16-2530-11 Ref. No. IC1 IC2 Address 3R 2R 6R 6R 5R 5R 3S 5R
C5

FAC1 FAC2
R3

ILLGND

D5

D4

CP28

R2 D2 Q5 R23

CP27 R22

CP4
CP5

5

DGND

CP2

D3

C19

D1

Q19

C20 CP6

C293

R21

C292

C33

R34 C31 CP31

4

1 8

E BE

C21 18 1

BE

C22

Q210

R277

IC7
5 C34 C33 C32
CBC Q11 R45

CP32 10

ILL+B

D217

BE

SW5V

IC4 IC5 IC6 IC7 IC9

8 R44

VOLA

Q20

R206 R47
R46 BEE

IC6
9 R48
+3 3V

IC10
16 1
R38 R39 R40 R37

R6 C3

R7

R1

Q2
B E 5 4

Q1
CP1

C29 R36 C30

9
C28 R35

R5

D5

B

E 5 4

Q3

C17 C15

IC10 Q1

6R 6R 6R 6R 5R 2R 6R 6S 2R 6R 2S

R19 B E R24 R20 BE R17

R27

C1

S5

Q8

BE BE

C22

Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q11 Q200

1 3 C4 R200

1 3 C1 L1

Q7
BE

R26

6
KS1

IC5

IC4 Q4

C2

R300 R18

L2 +2.5V

R41

Q10

R43 R42

C2

R32 R31

R33

C23

7

17

U

V

W

X

Y

1

KDC-MP925/W8027 PC BOARD (COMPONENT SIDE VIEW)
CD PLAYER UNIT X32-5540-00 (J74-1552-12)

S2

CP11

C32

C50

S1

C72 L1 C25 C67 R38 C29

R27

CP6

3

C66

R65

C44

32 33

17 16

CP12 R67

IC3
CP13 48 49 R49 R48 R47 CP14 64 R46 1 C37

C27

C69

R68

4

CP5 /RESET CP7 CP3

CP15 C41 R42

MIDIO

C35 RFOK

R66

C46

2

C18

S3

Q5

C15 C13 C11 MIACK

CBE E BC

IC6
4 5 3 1 C8 C3 C52

5
C10

R69 R6

Q4
SG D

R13

6
X32-5540-00 Ref. No. IC3 IC6 Q4 Q5 Q7 Address 4V 5W 5V 5X 5W

7

Refer to the schematic diagram for the values of resistors and capacitors.

18

Q7

EB

R12

S4

R63

CP2

R50

Z

AA

AB

AC

AD

KDC-MP925/W8027 PC BOARD (FOIL SIDE VIEW)
CD PLAYER UNIT X32-5540-00 (J74-1552-12)
Vref GND IOPARF RF C59 C60

1

R54

ATEST

A C+D

R51

C62 C61

VCC

C47

R55

R64

CP10

VR

C48 C51 C49 C54 C55

IOP+

TE

E

F

CN2
1

R44 B R45 C53

75 76

51 50 C39

Vref FLAG TX R39 HOLD TZD FZD X1 CP8 CP9

2

PD C38

Q8

R35

C28

R36

Q9

C17

R25

TRK IN TRK OUT FCS DOWN FCS UP D3.3V R9 C7 4 DGND C5 5

R34

LD

R40

C34

16

F

C36

IC2

FE R43 T BE

MIRR LOCK 100 C30 1 25 C22 C23 L2 C26 C21 R4 26

BE

Q10

ADCIN

D3

C31 R37

R24

C6

R70 PON 24 BE /CLK

D.OUT

D2
12EJE A.+8V R29 R22

C24

C2

C68

1

IC9
4 5 C70 3 1

C1

3

DAVdd3.3V R3 C71

SDIO

BCKIA TXO

3

IC5
R2 LOS DATA /MUTER 8EJE LOE/LIM D.GND

SLED IN

R33 R32 R31

/EJECT SLED OUT /LOAD

Lch A.GND Rch

LRCKIA C20 C64 C33

SDO 3 1

IC8

CN1

/MUTEL /MRST

SPDL-

4 5 C45 STBY REQ R28

C19 BU2.5V C9 5 4 D.GND

/MSTOP

IC7
BU5V SPDL+ 1 3 R21 R1 C4 C42 C43 R23 CP16 R18 /MIRST

D5V LO/EJ MOTOR S.7.5V S.GND 1

4

R5 /MICK TXD1 C16 CLK

RZM LZM FOGUP R17 1 100

/MICS

/MUTEL EB C /MUTER

Q3

CBE E BC

X2

CBE

R10 /RESET

C14 RXD1 25

Q6

/MILP

XI

CP1

C12

SEARCH 16 15 LIM-SW T1 T2

INT /RST

IC1
POND3.3 R8

R14 R7

BU3.3V

26 A0 /STB

R16 R15

5

50 51 GS CP4 D 75

76 R11

T3 T4 FLAGIN C58 R60 R62 SLED SD R56 TD 30 1

SPDL R58 R61 C63

MD R59 FD R52

/MSTOP

Q1

R57 C56

R53 TRK

C57

FCS

/BOOT

IC4

X32-5540-00 Ref. No. IC1 IC2 IC4 IC5 IC7 IC8 IC9 Address 5AC 2AB 5AA 3AA 4AB 3AC 3AB Ref. No. Q1 Q3 Q6 Q8 Q9 Q10 Address 5AC 5AA 5AB 2AA 3AA 3AA

6

7

Refer to the schematic diagram for the values of resistors and capacitors.

19

A

B

C

D

E

KDC-MP925/W8027
1
(X34-303x-xx)
WHT FRONT L WHT/BLK GRY/BLK FRONT R ANT CONT GRY BLU 8 9 7 10 6 11 5 12 4 13 GRN GRN/BLK VIOL/BLK VIOL PNK/BLK REAR R EXT. CONT. TEL MUTE ILLUMI TP66 BU TP65 REAR L MODEL NAME KDC-MP925 KDC-X879 FX-9100 KDC-W8027 UNIT A No. 0-10 YES 0-11 YES 0-01 YES 2-71 NO

B C D E
YES YES NO NO

F G H
YES YES NO YES

I
NO YES YES YES

A1 X86-3730-11 X86-3730-11 X86-3730-01 X86-3732-70

C100

C250

C259

C90-5624 C92-0687 C92-0686 C90-5626 CE32AT1H2R2M CE32AT1H010M C90-5626 CE32AT1H2R2M CE32AT1H010M C90-5626 CE32AT1H2R2M CE32AT1H010M

P. CON ACC GND

BLU/WHT RED BLK

3 14 2 15 1 16

BRN ORG/WHT YEL

ELECTRIC UNIT (X34-303x-xx)
TP67

2

DC CORD (E30-6294-05) : KDC-X879
WHT FRONT L WHT/BLK GRY/BLK FRONT R ANT CONT GRY BLU 8 9 7 10 6 11 5 12 4 13 BRN ORG/WHT YEL TEL MUTE ILLUMI BU GRN GRN/BLK VIOL/BLK VIOL REAR R REAR L

C3 220u16 +

D2

C100 3900u16 +

C2 0.01

D1

L1

D3
C4 0.01 C5 10u16 +

R1 22K

R17 1K

AUDIO 10.5V AVR
R18

Q16 Q15

C30 4.7u25 +

D8

75 TP133

B.U.5V AVR
100 R2

C31 100u16 +

C32 2.2

C33 2.2

P. CON ACC GND

BLU/WHT RED BLK

0V 5.3V

3 14 2 15 1 16

C6 100u6.3 + Q3,601 R4 SW5V 2.2K

Q2
R3 22K

TP58

10.5V
1

4

3

CAP-

CAP+

GND

BST

IC7
Q3
VOUT
TP59

2

OSC

WHT L

-10V 5

8 9 7 10 6 11 5 12 4 13 3 14 2 15 1 16

GRN

6

FRONT

REAR

WHT/BLK GRY/BLK

GRN/BLK VIOL/BLK VIOL PNK/BLK BRN ORG/WHT YEL EXT. CONT. LINE MUTE

L Q4,5

Q5
22K 22K

7

8

22K

Q4
22K 22K

V+

3

DC CORD (E30-6295-05) : KDC-MP925

Q601
22K

10V 0V
LV

-9V AVR (DC/DC IC) for 4.5V PRE-OUT

L4 22uH

Q1

10.5V
R19 2.7K


D9
C36 22u16 +

I Q25
47K 2.2K

C34 2.2 C35 2.2

EX AMP CONTR BUFFER D16

SW14V

R

GRY ANT CONT P. CONT ACC BLU BLU/WHT RED BLK

R TP60

Q6-8

R20 47

R5 220

Q6
47K

AUDIO 8V AVR Q7
22K 22K

Q17 Q19

Q18

R21 7.5K

Q17-19

ILLUMI BATT
47K

Q8

C37 0.022 R23 56K

PRE-AMP -9V AVR
R22 270K

R33

R3
C4 0.0

4
FL+ FLFRFR+ ANT CONT P CONT BLU/WHT RED BLK 3 14 2 15 1 16 BRN ORG/WHT YEL TEL MUTE WHT WHT/BLK GRY/BLK GRY BLU/WHT 8 9 7 10 6 11 5 12 4 13 GRN GRN/BLK VIOL/BLK VIOL PMK/BLK RL+ RLRRRR+ EXT. CONT

0V 2

OUT IN

R24 47

26

DC CORD (E30-6061-05) : FX-9100
REGULATOR IC for A8V
R7 4.3K C8 220u10 +

IC3
GND

3

13.7V

R25 10K Q20-22 R26 91K C40 2.2

Q22 Q20 PRE-AMP +9V AVR

Q21

76

1 1.29V

R6 15K

R8 24K

C38 0.01 R27 91K C39 2.2

C7

SMALL LAMP DET SW Q26
47K

D4

R9 1.5K TP61

1

C701 0.47 C9 100u10 +

Q602 Q9

B

TP124

TP123 29

27 R35 100K

C43

TP62

D10

SERVO +B AVR

5

R28 4.7K

D11

IC9 IC18
P-CON IC
VS 4.1V 0V 4 14.0V

5V 0V 5V 0V

1

ILLUMI

A
GND

P-ANT SW
R29 1K 1/2W R49 1K 1/2W
10K

Q23
ACC
47K

Q24

2 A 1 P.CON 2 B 1

4 3

6 5

8 7

W3

ENABLE 0V 6 GND3 0V 7 GND4 8 19 DIAGOUT

16

5

2 3 4

B.UP

R30 22K

3 0V GND2 2 0V GND1 1 14.0V 5V 0V OUT

5V 0V
5 6

0V
4 3 6 5 8 7 28

7

VSS

D13

RR+ RRFR+ FRFL+ FLRL+

RL-

DC CORD (E30-4942-05) : KDC-W8027

23

20

D12
R31 4.7K C47 1 R13 2.2 1W Q11-14

LOG

D15
44

6
L2

Q13 Q14
L3 22uH

C10 220u25 + C503 0.01

1

2

3

R10 750

14.0V

1.2V

4

22K 22K

7

· DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments or/and units.

20

X34-303x-xx (1/5)

C18 100u16

C16 100u16 + C17 0.01

CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.

D5

R12 10K

82uH

TP63

13.5V 0V
8

7 14.0V 6 0V

5.7V
IC19

ILL & DC/DC +B AVR Q12
22K 22K

5

30
R14 750

VIN

VSW

GND

SYNC

ON/OFF

3300P

C11

IC19

SWICHING REGULATOR IC for CD4.7V
R11 2.2K C12 220u16 + C504 0.01

SS

FB

C14 2.2

D6

C15 0.01

Q11
C13 1

R15 47K

CB

F

G

H

I

J

KDC-MP925/W8027
(X34-303x-xx)
MODEL NAME KDC-MP925 KDC-X879 FX-9100 KDC-W8027 UNIT No. 0-10 0-11 0-01 2-71 C264,265, 268,269 C94-0040 C94-0040 C94-0039 C94-0039 C297, C501 C502 C505 298 22u16 NO YES NO 22u16 NO YES NO 10u16 NO NO YES 10u16 YES YES NO R33 R34 R106 R107 R108 R109 47K 47K 100K 47K 22K 22K 47K 22K YES YES NO NO NO NO YES NO YES YES NO YES YES NO NO YES R124- R148,149, R222,223,234, R230,231,242, 243,254,255 126 154,155,521 235,246,247 NO NO 2.2K NO NO NO 2.2K NO NO YES 22K YES YES NO 22K YES W3 NO NO NO YES

30

31

L101 4.7uH

R182

100K

R181

25
47K R175 33K 11

21

22

16
23 28 26 27 24 20 19 17

TP126

SCL TP125

9

8

15

R174 4.7K

R178
R177 2.2K R179 10K R180 2.2K

R176 47K

SDA

D20

D21
C111 0.01 C101 47u6.3 +

R173 4.7K

10
R170 2.2K R169 1K

10K

18 0V

24

25

23

22

21

20

19

17

16

15

14

13

12

11

10

7

9

25
2.2K

P-CON

(SVR)

P-MUTE

MUTE

PRE-MUTER

FOCUS

PRE-MUTEL

BU-DET

P-STBY

ACC-DET

D16
R32 560

Q30,31

MUTE DRIVER
27 28 14 29 30 31

EXT-AMP

5V 0V 5V 0V

5V 0V
DIMMER

5V 0V 5V 0V

IC2-DATA

13

WOW-MODE2

IC2-CLK

REMO

5V 0V

5V 0V 5V 0V 5V 0V 5V 0V 5V 0V

ANT-CON(TYPE2) P-ON ILL-ON RESET XT1 XT2 REGC X2 X1 VSS VDD CLKOUT LX REQ M LX MUTE LX CON LX RST CD-MECHA+B

3

R34
C41 0.01

5V 0V

5V 0V

D17

R42 3.3K 1/2W
R43

D18

C102 22P C103 27P
47K

R101 10K X2 32.768kHz C104

32 33

R36 10K

C46 1000P R38 8.2K

C45 0.01 R44 18K

3.3V 34
35
R102 15K

X1

1

SMALL LAMP DET SW Q26
47K

15 C42 0.022
3

D19

R37 10K

36

47K

R41 22K

Q27

Q29

ACC DET
24
100K C44 0.01 R45

20.000MHz
R103 100K

0V 5.0V

37 38 39 40 41 42 43 44

IC1
SYSTEM u-COM
5V 0V 5V 0V 5V 0V

5 K

C43 1

BU DET

40 41 42
30

C48 0.01

43 44
R526 47K

IC9
5V 0V 5V 0V
1 VDD 14 13

5.0V 5V 0V

R106 10K R107 10K
R108 R109
10K

45 46
10K

TYPE0 TYPE1

R111 10K 47 R112 10K 48 49 50

0V or 5.0V
IC2-TYPE0 IC2-TYPE1 PAN5V E2P5V

2 3 4 12 11 10 5 6 9 8 VSS

FPM-MOTOR C

FPM-MOTOR B

FPM-MOTOR F

MOSW

M-RST

M-STP

O-CLK

BVDD

LO/EJ

0V

7

51

61

O-CE

DSI

D101

52

55

56

58

59

60

62

53

63

65

66

68

69

54

57

64

5.0V

29
76

R121 2.2K

R117 10K

R122 100

R123 100

R124 100 R125 100 R126 100

R115 1K

R116 1K

R118 1K

R119 1K

R120 1K

R615 1K

R616 1K

R617 1K

R618 1K

R130

R128 100K
70 74

51

49

52

50

53

57

63

65

DC/DC CONVERTER

31

R16 10K
C21 2.2

4

6

TP64

1

2

3

4

5

6

V03-1

D7

VO1

C16 100u16 + C17 0.01

C18 100u16 +

C15 0.01

V03-2

GND

C22 0.01 C23 33u63 +

VIN

A2

CT

64

66

L3 22uH

58

59

61

60

62

68

67

69

X34-303x-xx (2/5)

21

R132

100K

0.01

R127 1K

C107

C603 0.01

R525 1K

R131

5V 0V

5.0V

0V

LOGIC IC for MUTING

67

70

71

AVDD

BVSS

C106 1

0V 72 AVSS 73 AV-REF R129 74 M-MUTEL 1K

PAN-RST

MC-REQ

CD-SW3

SC-CON

O-DATA

5V 0V

M-MUTER

TP602

5V 0V

WOW-MODE3

5V 0V

FPM-MOTOR O

5V 0V

R110 100K

TP132

5V 0V

5V 0V 5V 0V

0V or 2.5V or 5.0V 5V 0V

5V 0V 5V 0V 5V 0V

EVDD

BEEP

EVSS

DIAG

TEST

AFS

5V 0V 26

8

6

EX AMP CONTROL BUFFER

22K

22K

TP601

5.0V

22K

22K

R183 2.2K

R184 2.2K

Q30

Q31

R172 470

R171 470

22

21

C110 0.01

0V

5V 0V

5V 0V

73 AV-REF AFS R129 74

8 7

R169 1K

R130

5V 0V
EVSS

0V
10 C110 0.01

8

100K R131 75 PAN-DET PAN-E2P-CLK PAN-E2P-DATA (FM+B) AM+B 2 1 PLL-DATA 470 1 R164 2 3 R167 1K 4 4 5 5 1K EVDD 6

1K

M-MUTEL

5V 0V
5.0V

5V 0V

74

5V 0V

5V 0V

R132

KDC-MP925/W8027

22
5V 0V 5V 0V 0V-5.0V 0V-2.0V 5V 0V 5V 0V
78 FPM-SW1 2.5V or 5V 77 FPM-SW4 0V 76 PHONE

100K

75

K

5V 0V 4.6 0V 5V 0V 5V 0V 5V 0V 5V 0V
R166 4.7K LX DATA M LX DATA S R-DATA R-QUAL POWER-DET R-CLK LX CLK IFC-OUT CD-SW4 PH-OUT NOISE CD-SW1 R165 4.7K 96 84 86 87 88 89 90 91 92 93 94 95 81 82 83 LX REQ S S-METER CD-SW2 SC-REQ FPM-SW3 80

5V 98 0V PAN-TX 97 PAN-RX

5V 0V 100 PLL-CLK 99 WOW-MODE1

FPM-SW2 79

0.6V or 1.6V or 4.2V
R163 470 100 R133 2.2K

L102

X34-303x-xx (3/5)
R186 1K R159 470 R160 470 TP702 R152 2.2K R153 2.2K
R134 2.2K

77

5V 0V

78 R135 2.2K R136 2.2K R151 100K R158 100K

85 0V R145 47K

R148 2.2K

R142 2.2K R144 1K

R143 2.2K

R141 1K

79

R162 10K

80

90 91 95 96 98

R150 100K

R146 47K

R139 2.2K

R154 100K

R155 100K

97 R161 100K

94 R156 100K

R138 2.2K

R137 1K

R149
93
100K

54

1000P

R140 2.2K C109 84 86 88 89 99 87 83 92 82 IC4 81

L

D210

D209

D212 D211

AUDIO POWER IC

R256 220

D207

SW for IC20

D OUT 25
22K

SW2 15

22

SW1

MS CLK 3 5 7 9 OUT1OUT2+ OUT2STBY C274 0.22u50 RR

MSDA

AUDIO 8V

11

4.2V 1 I/O1 4.2V 2 O/I1

IC20

L ch OUT1+ FR C275 0.22u50 RL C273 0.22u50 FL

A GND

R ch

MUTE R

MUTE L

8.4V 0V 7 CONT1 6 4.2V O/I2 5 4.2V I/O2

8.4V

M RST 32 34 R621

REAR

M STOP

CN4
11 22K R257

Q603

R524 2.2K
22K

FR+ FRRR+ RR-

24 23 9

91

TP57

IC4

R523 2.2K

M

C277 33u16 + C276 1

TP68 2

J1 9
FRONT Lch+ FL+ TP69 RL+ TP70 FLTP71 RLFRRRFR+ RR+ R48 TP76 13 3 14 R47 TP78 10K TP79 15 R46 TP80 1K TP77 TP74 TP75 TP72 TP73 REAR Lch+ FRONT LchREAR LchFRONT RchREAR RchFRONT Rch+ REAR Rch+ P-ANT EXT CONT P-CON PHONE ACC ILLUM

8

90

39 40

TP56 TAB 4

0V 1
PGND2

0V

SCL

TP55

10 7

SDA

TP54

5V 0V

TP53 C272 0.22u50

44

6.8V 6.8V 6.8V 6.8V

6

3 CONT2 0V 4 GND

TP52

TP51

12 5

43

12 11

VCC

TP50

70

AUX IN

TP49

9

10

8

13 4

74

TP48

58

TP47

14 3

21 20 19 18 17 16 15 14 13 12 R259 4.3K
4.7K

59

7

8

R521 2.2K
C278 1u50 +

TP46

N

15 2

(E30-6310-05) : KDC-W8027/FX-9100 (E30-6311-05) : KDC-X879/MP925

to CD MECHANISM
6.8V
R260 10
C279 1u50 +

11 R261 7.5K
TH1 470

SW4

86

6 5

TP45

FRONT

R522 2.2K

6 14.4V VCC1 6.8V 11 IN1 8 0V PGND1 0V 13 SGND 10 6.8V SVR 12 6.8V IN2 15 6.8V IN3 14 6.8V IN4 16 6.8V ACGND 18 0V PGND3 17 6.8V OUT3+ 20 14.4V 19 6.8V OUT3VCC2 22 6.8V 21 OUT4+ MUTE 23 24 0V OUT4PGND4 25 HSD

10K

GND

16 1

3

4

0V-4.4V

SW3

60

TP81

10 C225 0.01
C227 0.047

TP44

9 C226 0.047 49 Q502,50

F1 10A

FUSE

SUB

BU 5V

TP43

2 1

D GND

B.U.

D GND

TP42

ANALOG SW for SWITCHING IC6 FOCUS

D208

4.7V

FLFL+ RLRL+

D214

D216

D215

D213

8 7 6 5 4

4.7V

TP41

LO/EJ

61

TP40

3

MOSW

62

TP39

2 R265 1K C289 0.1 C287 0.1 C288 0.1 C286 0.01

SERVO +B

TP38

1 34 32 39 40 R603 2.2K
R604 10K R606 2.2K

SERVO GND

TP37

CN1
TP84 AUXR R264 10 AUXR TP83

O

11

39

38

R605 10K

R607 910

C601 0.1

FL+B

C222 1

C223 1

ILL+B

PANEL 5V SW

FL GND

CN5

AUXG AUXL R602 100K R614 910 PRL

R262 4.7 R263 10

12

AUXG TP82 AUXL TP88

TP16

9

C224 0.1

1 2

10

RL TP90

TP701

R610 2.2K

R613

2.2K

R601

PRR TP89

RR

7

8

4.2V 4.2V 4.2V

4.2V

4.2V

4.2V

4.2V 4.2V

100K

RG R611 10K

3

FL+B

05 K 07 0
910 TP88

100K

9

1 2 10
C227 TP90 PRR TP89 RR PRL RL

ILL+B

TP701

R610 2.2K

R613

2.2K

0.047 R601

7

8

Q502,503
RG FR TP91

49
100K PFR

PANEL 5V SW

FL GND

R611 10K

37

FL GND

TP17

R209 6 5

R207 47K

36K

FAC2
22K 22K

6

FG FL

Q503
TP86 PFL TP93

NC37

FAC2 1 2 3 FIL4 PNFR TP85 FFR1 34 FIL3 FFL4 PNFL TP87 35 NC1 NC36 C228 0.047 36

R612 10K

C602 0.1

TP18

FAC1

4

P

3

4

38 FFL3 4.2V 4.2V 39 01 FFL2 1 4.2V 40 FFL1 C223 1 4.2V 41 INR C222 1 4.2V 42 INL 224 0.1 4.2V 43 C3 25 0.01 4.2V 44 C4 4.2V 45 FILOUT 4.2V 46 FIL1 C226 47 FIL2 0.047 48 NC48
NFL NFR

FAC1

TP19

D GND

R205 130K

R514 R513 3.9K 22K

Q502

R608 100K

R527 47K

4.2V

D GND 4 FIL5 FFR2 33 C230 0.047

TP20

C229 0.047

2 1
TP92

NFG

PAN5V

R609 100K

PAN5V

TP21

R208
5 FIL6 FFR3 FFR4 OUTL OUTR BASSOUT TP2 MODE1 NC25 25 26 99 27 28 29 34 30 35 31 32

9.1K

REMO

10

R206 82K

4.2V

TP31 6

C282 2200P

C283 2200P

C280 2200P

C281 2200P

C285 2200P

C284 2200P

P RST 7 PCOUT FIL7

R520

10

IC6

TP29

4.7K

53

C231 0.047

ANA

R210

6.2K

TP30 R218 3.3K 8

R217 6.8K

AUDIO IC(WOW)

3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

B
5V 0V
PCIN C232 1 0V 9 C1 C233 10u10 0V 10 C2 + C234 0.033 11 SFIL1 12 NC12 13 +

MC REQ

52

TP26

SC CON

57

2/3

TP24

SC REQ

89

R243 180

TP25

PAN TX

97

C

PAN RX

TP27

98

X16-253CN1

TP28

Q

RST

R620

C269

R233 360

30 31

TP23

1K

31

R239 22K

R241 C271 82 10u16 +

PRL

MODE3

MODE2

VREFIN

21 22 SVOL2 VREF SFIL3 V+ GND SFIL2 SVOL1 NC13 NC24 22 23 24 13 18 21 4.2V 20 4.2V 19 8.4V 16 4.2V 17 4.2V 15 4.2V 14 4.2V
17 54

0V

-9.1V

DSI

51

0V 2 0V 3 4

TP22

1

4.7K

R235

R237 10K

Q205

VSS

IC12

P E2P DATA

R518 100

23

4

0V

G

TP35 C238 220P C239 0.01

E2P5V

R701

AMP for 4.5V PRE-OUT

24 C240 10u10 + C237 0.47 C236 0.33 C235 0.01
R219 3.9K C241 10u10 +
22K

VDD

R234

Q206

R236 10K

TP33

100K

4.7K

P E2P CLK

R517 100

8

7 0V

6 0V

5 0V

25

5

PRE-OUT MUTE SW

26

PAN DET C296 4.7 R275 47K C291 0.01

TP34 R519 470

9.4V
R238 22K

75

50

TP36

R240 C270 82 10u16 + 14

PRR

Q501

22K

ESD GND

C268
+

R232 360

27 28 R273 10K

ESD GND

AGC for SA
R272 10K

R242 180 R230 180

Q210

D

E2P 5V SW

TP32

R

11

C264
+

R220 360

4.2V 1

4.2V 2 4.2V 3 0V 4

R226 22K

R278 33K

P1
C295 4.7

R228 C266 82 10u16 +

PFR

0V

-9.1V

IC10

0V 2 0V 3 4

VSS

R222

R516

1

R224 10K

4.7K

Q204

VSS

IC11

VDD

R515

4.7K

BUFFER for S.A

4.7K

8

AMP for 4.5V PRE-OUT

D217
6 4.2V 7 4.2V 5 4.2V

VDD

R223

8.4V
R271 820

R225 10K

Q203
4.7K

D505

8

D601 D509
R277 47K C294 4.7 R274 100K R270 47K C293 4.7 C292 4.7 R276 1K

D507

D506

D508
34 39 35 R625 1K 38
R626 1K

7 0V

5 0V

6 0V
R227 22K R221 C265 360 10 +

9.4V
R229 82

PRE-OUT MUTE SW
9

R231 180 R255 180

C267 10u16 +

PFL

S

E

C298
+

R245 360

R251 22K

R253 C300 82 10u16 +

PNFL

0V

-9.1V

0V 2 0V 3 4

1

R247

R249 10K

Q207
4.7K

IC13

VSS

D204 D202
R280 330K R279 330K C219 1 C218 1 R624 3.3K R623 3.3K

AMP for 4.5V PRE-OUT

44

43

VDD

R246

D201

R248 10K

C202 0.47u50 + C201 0.47u50 +

Q208
4.7K

8

C250

2.2u50 +

7 0V

6 0V
R250 22K

5 0V

9.4V
R252 82

PRE-OUT MUTE SW

SYSTEM E's IC

4.2V 4.2V
44 39 43 42 41 40

C299 10u16 +

IC5

4.2V 34

PNFR

D203

C220 1

C221 1

KDC-MP925/W8027

X34-303x-xx (4/5)
MDL SUBL CDR MDR CREF CDL ACIN0R 4.2V 35 ACIN0L 36 ACOUTL 37 ACOUTR 38 SUBR

23

C251 0.33 22 C253 C252 0.33 33

4.2V 15 4.2V 16 4.2V 17

HRR2 HRR1

HRRO HRLO

14 4.2V 13 4.2V ACIN1R ACIN1L ACIN2L ACIN2R ACIN3R ACIN3L HRL2 OREF 12

8

R244 C297 360 + 14 RR 13 RL

R254 180

T

AUXL

C203 0.47

4.2V

1

AUXL

4.2V

4.2V

4.2V

R266 1K

C290 0.01

23
E-VOL&N.C

D205

D206

CN2

AUXG

4.2V

2

32 31 30 29 28

0.33 24 C255 0.33 25 C257

C254 0.33 C256 0.33

4.2V 18 4.2V 19 4.2V 20 4.2V 21

AUXC

HRL1 HFR2 HFR1

HFRO HFLO AXOL

11 4.2V 10 4.2V 9 4.2V

AUXR

C205 47u6.3 + C204

4.2V

3

1 2

0.47

AUXR

4

4.2V

4

5

CDCHR+

IC2

4.2V

6

CDCHR-

27 8.4V

0.33

HFL2 C258

AXOR

8 4.2V

11 FR 10 FL 9 8

4

C208 0.47

R267 10 C206 R268 47u6.3 4.7

GND B.U

C

TP

TP

U

V

W

X

Y

KDC-MP925/W8027
1 2 3 4 5 6 7 8 9 10 13 11 12 4 3

CN3

LX-BUS

H
1 2

EXTERNAL DISPLAY & STEERING REMOTE CORD IC1 IC2 IC3 IC4 IC5 IC6 IC7 IC9 : : : : : : : : UPD703030GC041 TDA7411 M5237ML TDA7560 TDA7401 NJM2195FJ1 ICL7660SIBA TC74HCO2AF IC10-13 IC14 IC15,16 IC18 IC19 IC20 : : : : : : NJM4565M-TE2 TDA7479D LB1930M L9820D013TR LM2672M-ADJ TC7W66FK : 2SA2057 Q1,8,9,13 Q2,14,16,17,20,22, 27,29,210,602 : 2SC4081 Q3,18,19,21 : 2SA1576A Q4,7,12,30,31,501 : DTA124EUA or UN5112 Q5,11,202,303,503,601,603 : DTC124EUA or UN5212 : DTC144EUA or Q6,26 UN5213 : 2SB1443 Q15 : DTC114YUA or Q23 UN5214 Q24 : 2SB1240 Q25 : DTA123JK or KRA105S Q201,203-208,305 : DTC143TUA or UN5216 Q304 : 2SB1188(Q,R) Q502 : 2SB1427 D1 : 1N5393G-M5 D2 : RB160L-40 D3,9 : MA8056-M D4 : MA8082-L D5 : SFPB-54V D6 : MA8100-L D7 : MA4062(N)-L D8 : MA8110-M D10-13,15,209-216 : ISR154-400 or S1J D16 : MA3056-M D17 : MA3047-M D18 : MA8068-M D19 : MA8062-M D20,21,101,207,208 : DAP202U or MA142WA D201,202,204,205 : RD6.8M(B2) D203,206 : RD6.8MW D217,506-509,601 : DA204K D301 : IMSA-6801 D501-505 : MA3062WA SIGNAL LINE GND LINE B LINE B LINE

1

2

1 2
GND B.U

CN3

15 16
LX REQ M TP96 LX DATA S

13 14
TP101 LX REQ S LX DATA M

11 12
LX MUTE LX CLK

9 10
LX CON Lch

7 8
LX RST AUDIO GND

5 6
Rch NC

3 4
REMO O CE

1 2
O DATA O CLK

ANT. W2
3 L7
TP108

TP111 TP110

2 1

TP103

TP106

TP109

TP100

TP95

TP107

TP94

TP98

TP99

TP97

2

R509 470

R511 470

C206 R268 47u6.3 4.7 + C207 R269 10 0.47

R503 4.7K

R504 4.7K

R506 4.7K

TP104 R507 4.7K

R505 4.7K

R508 100

R502 100

R501 100

R510 470

R512 1K

D301 D501
TP2

TP1 1 2 3 4 TP3 5 6 7 8 9 10 11 TP6 TP7 12 13 14 15 16 TP11 17 18 TP12 TP13 19 20 21 22 23 24

A1
RF GND FMANT IN AMANT IN OSC GND FM +B AM +B OSC GND1 OSC GND2 OSC GND3 OSC GND4 VT PLL +B IFC OUT SDA SCL DIG GND VDD5V IF2 GND IF2+B AUDIO OUT SD S-METER IF1+B IF1GND

6

C208 0.47

D503

5
4 6 7

D504 D502

TP102

R267 10

L303 4.7uH
C303 0.01

TP4

41

40

42

95

88

96

43

69

94

10

67

68

R303 Q304 1K

L304 4.7uH Q303,304

C304 0.01

3

Q303
7 4.2V C263 0.1 6 4.2V C262 0.1 5 4.2V C261 0.1 4 4.2V C260 0.1
22K

10 FL 9

20

21

22K

R304 22K

8

AM +B SW

84 TP8 1 TP9 100 L305 4.7uH
C305 0.01

10 4.2V

9 4.2V

8 4.2V

2 4.2V

CL1

CR1

MUTE

CL2

CR2

HFLO

AXOR

AXIR

AXOL

5V 0V
VCC

4.2V 21

4.2V 22

4.2V 20

CREF 0V 24 AGND 0V 25 DGND 26 SCL 27 SDA

HFR2

HFR1

HFL2

HFL1

4.2V 23

28

AXIL

1 4.2V

3

8.4V
18 19

2

L306 4.7uH
C307 0.01

TP14

PANEL MECHA ASSY
1 MOTOR+ MOTORMOTORMOTORMOTOR-

4

C259

C256

C258 0.33

1u50 +

0.33

SDA

SCL

M
L201 4.7uH C215 47u16 +

2 15 14 13

C257

0.33

0.33

COMPOSITE SIGNAL BUFFER for RDS
87 R306 2.2K

Q305

C505

C502

24

25

R305 4.7K

1

4.7K

C501

0.01

0.01

TUNER

S-MOTOR

IC14
92 C214 0.01
27 8.4V 26 0V

F
RDCL 16

M

12 MOTOR11 MOTOR+ 10 9 8 7 MOTOR+ MOTOR+ MOTOR+ PH-OUT

R307 2.2K R308 2.2K

1 2

P-MOTOR

QUAL RDDA

25

24

23

22

Q202

C311 330P

25 4.2V 24 4.2V

23 4.2V

4.2V

22K

X3 4.332MHz

E-VOL MUTE SW

22K

T57

15 14

2.4V 3 VREF 2.4V 4 5.0V 5
MPX OSEL

OSCOUT

C309 10P

RLED (1K)

RPH (100K)

Q202

93

5V 0V

6 5

SW5V SW4

VDD

GND

ACIN2R

ACIN3R

OUTRR

OUTLF

ACIN2L

ACIN3L

OUTRF

2.2

OUTLR FREEL FREER SCL SDA SMUTE AFS

C314 10u16 + C312

22
C313 0.01

21 20 19

4.2V 5V 0V 5V 0V

20 C216 1 19 18 17 16

SW3

SW2

SW1

21 C217 1

12 5.0V VCC 0V 6 11 0V EXTRES GND 7 10 ARI TM 8 9 FILOUT FSEL

OSCIN

13

PH

TP134

(1K)

C310 10P

SW4

L307 4.7uH

5

30

29

28

4

D GND

RDS DECODER IC

3 2 1

SW1 SW2 SW3

18 0V or 2.7V or 3.7V 8

IC2
E-VOL&N.C.&MPX

Q201
QUAL 15 0-2.6V
4.7K

CN7
TP131 83 TP112 TP113 1 MOTOR+ 2 MOTOR-

MPOUT
CDCHR+ CDCHL+ CDCHRCDCHL-

14 0V 13 0-5.0V 12 0-5.0V

C213 0.1

R204 4.7K

NOISE BUFFER

IC16
7.6V
1 2 3 4 VCC NC2 IN1 IN2 SGND NC10 OUT1 NC8 10 8

IC15
0V or 9 7.0V 0V or 7 7.0V 7.6V
1 2 66 65 6 0V 3 4 VCC NC2 IN1 IN2 SGND NC10 OUT1 NC8 10 9 8

CN6
15 MOTOR-

MPIN
9 NV4.2V 10 AM 4.2V 11 MPX NV+

0V or 7.0V 0V or 7.0V
C317 0.22 C316 0.22

TP114

14 MOTOR13 MOTOR12 MOTOR11 MOTOR+ 10 MOTOR+ 9 MOTOR+

AUXR

LEVEL

R203 4.7K C199 0.1 C212 150P

82

64 63

6

3

5

6

4

7

8

5V OUT2 0V
PGND

5V OUT2 7 0V
PGND

4.2V

4.2V

4.2V 4.2V

C211 0.47 C209 0.022

R202 4.7K R201 10K

0V 5

0V 5

6 0V

TP115
C319 0.22 C318 0.22

8 MOTOR+ 7 PH-OUT 6 SW5V

4

6

C204

0.47

7

C210 0.01

MOTOR DRIVER IC for PANEL MECHA

MOTOR DRIVER IC for PANEL MECHA

TP116 81 TP118 77 TP119 TP117 TP128 78 TP129 79 TP130 80 1 SW3 2 SW2 3 SW1 5 SW4 4 D GND

AUXR

KDC-MP925/W8027 (1/3)

7

24

X34-303x-xx (5/5)

Z

AA

AB

AC

AD

KDC-MP925/W8027
DISPLAY UNIT (X16-2530-1x)

1
R24 100K

CN1
FL+B 1

TP1

Q4
R17 47K

R25 22

TP300 ILL+B 2 FLGND 3 FLGND 4 FAC2 FAC2 5 6 TP4 F1 TP5 TP3 F2 TP2

R300

R204 4.7K

Q3
R20 47K

R21 10K

R26 10K

-

Q8
R27 10K

2.2K

R23

R22 1.5K

R202 47K

REMO. ON SW
10K 10K

4

Q5

R201 47K

FL +B SW

3.3V SW

FL3.3V SW Q6

L8

R18 39K

39K

FAC1 7 FAC1 8 D GND 9 D GND 10 PAN5V 11

Q200

Q7

3.3V 0V

91 C200 0.22

R203 47K

R19 47K

93

5.0V

3.3V
16 14 A14 A14 TP48 17 A15 A15 54 NC 19 CP13 132 131 130 129 128 127 A11 A10 A12 19

92

IC6 LEVEL SHIFT
3.3V
1 VCC

2

X34-303CN5 1/3

PAN5V 12 REMO 13

TP6 TP7 TP8

20 CP1 470 13 90 45

2

Y1

5V 0V

C21 0.1

3 4

PAN RST 14

14 TP9 15 TP10 R1 470 CP2 470 L1 16 17 TP12

A1 Y2 A2 Y3 A3 GND

B

ANA 15 MCREQ 16 TP11 SCCON 17 SCREQ 18 TP13 SYSRX 19 TP14 SYSTX 20 TP15 RST 21 TP16

IC4 3.3V AVR
4.9V 4 3.4V
5 VOUT VIN ON/OFF VSS EXT 3 4.9V 2 0V 1 L2

R200 3.3

IC5 2.5V AVR
4.9V 4 2.5V
5 VIN ON/OFF VSS VOUT EXT 3 4.9V 2 0V 1 107

5 6

4.2V
C4 0.1

4.2V

0V 7 0V 8

C1 0.1

18 19 20 21 22 TP17 23 TP18 24 TP19 25

Q1
10uH L3 C2 10u10 +

Q2
C5 10u10 +

3.3V NC16 16 0V 15 3.3V Y6 0V 14 5V A6 0V 13 NC13 12 3.3V Y5 0V 5V A5 11 0V 10 3.3V Y4 0V 9 A4 5V 0V
R206 22K

21
TP45

TP37

3

DSI 22 E2PDATA 23 E2P5V 24 E2PCLK 25 TP20 PAN-DET 26 ESD GND 27 ESD GND 28 TP21

A11

A10

A12

CP17 220

26

CP16 470

CP15 0V 470

SD14 SD13 SD12 CP20 22K SD11

1 2

141

140

139

138

137

136

135

134

133

144

143

A1

142

3.3VDD

VSS

A2

D15

4 5 6 7 CP19 220 CP21 220 1 2 3 4 5 6 10 11 12 13 7 1 2 3 4 5 6 7 D14 D13 D12 D11 D10 D9 D8 3.3VDD VSS D7 D6 D5 D4 D3 D2 D1 D0 FL GCP1 SC REQ MC REQ SC CON FL BLK 2.5VVDD VSS NC KS4 KS3 TDI TDO KS2 KS1 TRST ROTARY CCW ROTARY CW TMS TCM

D5

SD10 SD9

3.3V 0V 3.3V 0V

3.3V 0V

4

D1
CP22 22K

SD8

D2
SD7 SD6 SD5

3.3V

8 9 10 11 12 13 14 15 16 17 18

D3 D4 CN2
ESD GND 1 ESD GND 2 PAN-DET 3 4 R2 1K CP3 470 26 23 25 R3 4.7 24

C17 0.1

0V

SD4 CP24 22K SD3 SD2 SD1 SD0 CP23 220

10 11 12 13 14 15 16 R14 100 17

14 15 16 17

3.3V 0V

1

E2PDATA

A13

A3

A5

A6

A8

A0

A4

A7

A9

126

3

3.3V

CP14 470

SD15

3.3V 0V

C16 0.1

A13

A1

A0

A2

A3

A5

A6

A8

A4

A7

A9

CP18 22K

C7 1

66

20

5

E2PCLK 5 E2P5V 6 D GND 7 DSI 8 NC 9 RST 10 TP23 GREEN 11 TP24 RED 12 TP25 KI5 13 TP26 KI4 14 TP27 KI3 15 41 TP28 KI2 16 TP29 KI1 17 NC 18 TP31 26 TP32 KS3 20 TP33 KS2 21 TP34 KS1 22 TP35 VOL B 23 TP36 VOL A 24 D GND 25 PAN5V 26 ILL +B 27 ILL +B 28 FLGND 29 FLGND 30 33 34 31 30 27 KS4 19 39 40 42 48 106 105 TP22

IC1

19 18 20 21 22

CP25 1K 19 20 21 22

PANEL MICRO PR
3.3V 0V

22

2.5V
C18 0.1

23 24 25 26 27 28 29 30 31

21

0V
CP26 1K

26 27 30 31 R16 1K CP28 3.3K

3.3V 0V

3.3V 0V 3.3V 0V
FL GCP2 SYS TX

X16-256CN1

3.3V

32 33 34 35

3.3V 0V 3.3V 0V
FL DATA3 SYS RX FL CLK

6

3/3

33 34

3.3VDD

FL DATA2

3.3V 0V
VSS

3.3V 0V

3.3V 0V

C

KI1

KI2

KI4

KI5

41

NC

LI3

51

NC

CP27 3.3K

36

CLK IN

39

40

42

43

45

46

48

49

50

52

38

44

3.3V

37

100

47

53

CLK IN

C19 0.01

C20

0.01

3.3V 0V

3.3 0V

CP4 22K

CP6 1K 45

46

22K

41

40

42

48 R4

39

52

55

49

7

NC 31 ESD GND 32

43

50

X16-2530-11 (1/3)

CP7 220

C8 0.1

CP5 1K

25

TP46 L7

R5

0V

L5 600

L4 600

600

L6

AE

AF

AG

AH

AI

KDC-MP925/W8027
ED1

3.3V 5.0V LEVEL SHIFT

IC7
5.0V
1 G1

5.0V
8 7 6 5 18

16

14

17

19

3.3V VCC 0V
G2

19

2 3

A1 Y2

C22 0.1

5V 0V

Y1

0V 4

GND

3.3V A2 0V

REMOTE CONTROL SENSOR
R32 100K

5.0V

C23 2.2

IC8
3

GA

G1

G2

G3

G4

G5

G6

G7

G8

G9

G10

G11

G12

G13

G14

G15

G16

G17

G18

G19

G20

G21

G22

G23

G24

G25

G26

G27

G28

G

R31 100

1

49 46 F2 15
C14 0.1

13

5V 0V

A13

A15

A16

A18

A19

A14

A17

A20

A21

CP13 0V 470

CP11 470

CP12 470

C15 0.1

91

111

3.3V

CP200 1K

2.5V

0V

IC2
A16 BLACK DISP 108 107 106 105 104 103 102 101 100 TP44 CP10 1K 106 105 108 107 A15 A14 A13 A12 A11 A10 1 2 3 4 5 6 7 8 9 10 11 12 13 A15 A14 A13 A12 A11 A10 A9 A8 A19 A20 NC11 NC12 NC13 NC14 NC15 A18 A17 A7 A6 A5 A4 A3 A2 A1

125

122

121

120

119

118

117

116

114

127

126

124

123

113

111

110

128

115

112

109

3.3V 0V

A16 BYTE VSS2 D15

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25

A17

3.3V 0V
SD15 SD7 SD14 SD6 SD13 SD5 SD12 SD4 C35 10u10 +

2.5VDD

A21

3.3VDD

VSS

VSS

A13

A15

A16

A18

A19

A20

NC

NC

NC

NC

NC

A14

A17

SA RST

NC

V

3.3V 0V

3.3V 0V

3.3V 0V

DISP LED RED LED GREEN LED NC NC

3.3V 0V 3.3V 0V

D7 D14 D6 D13 D5 D12 D4 VCC D11 D3 D10

CP300 22K

A9 A20 A21

FLASHROM CHECK

3.3V 0V

CE F/ROM CE RON

101 100 97 CP9 470 OE

3.3V
SD11 SD3 SD10 SD2 SD9 SD1 SD8 SD0 OE 100 C36 0.1

3.3V

14 15 16 17 18 19 20 21 22 23 24

C13 0.1

VSS

99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73

0V 3.3V

3.3V 0V

A19 A18 A8 A7 A6 A5

PAN3.3VDD

3.3V 0V

D2 D9 D1 D8 D0 OE VSS1 CE A0

3.3V 0V 3.3V 0V

W/E NC OE NC 3.3V FL +B

3.3V 0V

IC1
L MICRO PROCESSOR
3.3V 0V

93 92 R12 1K 90

A4 A3 A2

0V

3.3V 0V

FL 3.3V REMO ON NC NC FL LATCH NC FL GCP3 NC VREF CON VSS PAN2.5VDD NC F01 F02 F03

3.3V 0V

A1

3.3V 0V 3.3V 0V

R10 100

87

R11 22K R9 22K

A
A16 A15 A14 1 2 3 4 5 6 7 8 9 10 11 12 A18 A7 A6 A5 A4 A3 A2 A1 13 14 15 16 17 18 19 20

FLASH ROM
3.3V 0V
A17

85

0V 3.3V 0V 2.5V
C12 0.1

A16 A15 A14 A13 A12 A11 A9 A8 WE RESET NC11 RY/BY A18 A7 A6 A5 A4 A3 A2 A1

A17 VSS2 NC38

40 39 0V 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21

A13 A12 A11 A9 A8 97 3.3V

3.3V 0V
A10 SD7 SD6 SD5 SD4

C37 10u10 +

0V
79 78 77 76 75 74 73

3.3V 0V 3.3V 0V 3.3V 0V

NC37 A10 DO7 DO6 DO5 DO4 VCC2 VCC1 NC29 DO3

3.3V 0V
FL DATA1 PAN RST

FL DATA2

3.3V 0V
CLK IN NC

3.3V 0V
MODE0 MODE1 3.3VDD 2.5VDD CKSEL CVSS PSEL VSS X2 X1

0V
AVSS1 AVSS0 VREF VREF

F04 F05 F06 WAVE IN

C38 0.1 C39 0.1

3.3V

NC

NC

61

62

71

53

55

56

58

59

60

63

65

66

68

69

54

57

64

67

70

72

SD3 SD2 SD1 SD0 OE 101

TP48

TP47

3.3V

3.3V

TP46 L7 600

2.5V

3.3V

0V

600

0V

0V

3.3V 0V 3.3V 0V 3.3V 0V

DO2 DO1 DO0 OE VSS1 CE A0

TP38

CP8 22K

0V

C11 22K

R6

0.01

C9 0.1

X1 5.000MHz

R8 22K

R7 1K

C10 0.1

3.3V 0V

A0

26

X16-2530-11 (2/3)

66

L10 10uH

R50 100

IC3 (for DISPLAY CUSTOMIZE)

L9 10uH

GRAPHIC ROM

4

52

4 VCC GND 2 0V OUT GND R33 1K

F1-1

F1-2

F1-3

S13

1

2

3

21

66

20

19

4

5

S12

AJ

AK

AL

AM

AN

KDC-MP925/W8027
1

192x36 Dot Matrix
2

G27

G28

G29

G30

G31

GB

G1

G2

G3

G4

G5

G6

G7

G8

G9

G10

G11

G12

G13

G14

G15

G16

G17

G18

G19

G20

G21

G22

G23

G24

G25

G26

G27

G28

G29

G30

G31

GC

VDD1

VDD2

F2-18

F2-19

F2-20

VSS1

VSS2

F1-2

F1-3

CLK

S13

S12

S11

S01

S02

S03

GCP

F1-1

LAT

11

10

12

2

13

BK

: GREEN

: BLUE

15

16

18

19

14

17

20

3

5

6

8

4

7

9

2.2K

R29 2.2K

22

R30

Q9 FL BK SW
R35 15K

IC1 IC2 IC3 IC4 IC5 IC6 IC7 IC8 IC9 IC10 Q1 Q2 Q3 Q4 Q5,6,8 Q7 Q9 Q10,200 Q11 D1-5 D13 D14

: : : : : : : : : : : : : : : : : : :

703132GJ011-A MX23L3213TG114 MBM29LV004T-90 S-816A34AMCT2G S-816A25AMCT2G TC74HC4050AFT TC7WT126FU RS-171 TC7WH32FU-F BA3830F 2SB1188(Q,R) 2SB1132 2SC2713 2SA1163 2SA1774 DTC114EE 2SC4667 2SC4617 UMX2N

49

52

55

50

87

(X16-2530-xx)
MODEL NAME KDC-X879 KDC-PSW9527 FX-9100 KDC-X979 KDC-9026R KDC-W9027 UNIT No. 0-10 0-11 A YES NO D13 YES NO Q10 R41-43 YES NO YES NO

F2

R28 2.2K

C25

C26 0.1

F1

3

2.2

4

GND LINE B LINE

3300P

C28 10

C29

C30

R37 2 270K

9 0V

2.4V
8 7 6

5.0V
5 4

270K

R38

3300P R36 10K

REIN

LNIN

R01

BISC

GND

RSTC

RENF

R41

240

R34 10

Q11
R45 180

LNNF

0

LED SW (GREEN)

R39

RELV

VCC

R42
108 10K

22K

R43

R48 100K

10K

C32 4.7

C33 4.7

C34 4.7

R47 330

C31 2.2

11

12

13

10

15

14

16

17

18

RST

F05

F04

F06

F03

F02

F01

Q10

R46 4.7K

SPECTRUM ANALAYZER

2.4V

1.35V

R02

LED SW (RED)

: DA204U : B30-1575-05 : B30-2233-05

D13

D14

3

1

IC10

4

3.3V 0V

75

76

74

77

78

79

111

R44 100K

5.0V

73

CP30 22K 1 2 3 4

FL GRADATION CONTROL

IC9
A1 B1 Y2 GND

3.3V 0V 3.3V 0V

VCC Y1 B2 A2

8 7 6

3.3V

R49 100

10uH

18 43 85

0V

C27 0.1

5

DTA123JK DTC114EE DTC114YUA DTC143TUA UN5114 UN5213 UN5214 UN5216 2SA1163 2SA1576A 2SC2713 2SC4617 2SD2114K

2SA1774 2SC4081

CP31 47K

CP32 47K

R40 33K

UMX2N
5

7 0 +

SWITCH UNIT (X16-2080-XX)
J1
N.C PAN-DET 1 2 TP4

N.C 3 N.C 4 8 SDA 5 N.C 6 N.C 7 9 SCL 8 N.C 9 N.C 10 VDD 11 N.C 12 N.C 13 GND 14 N.C 15

CP1
100

IC1
5 6 7

5V 0V

SDA SCL WP VCC

GND A2 A1 A0

4 3 2 1

TP3

5.0V
TP2

8

0V

EEP ROM
TP1

CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer. · DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments or/and units.

2SB1132 2SB1188

DTA124EUA DTC124EUA DTC144EUA

6

2SB1443

NJM4565M-TE2

IC1 : BR24C01AFV-W (X16-2080-xx)
MODEL NAME KDC-X969 KDC-9023R KDC-PSW9524 FX-9000 UNIT CP1 No. IC1

0-10 YES YES 0-01 NO NO

1

7
KDC-MP925/W8027 (2/3)

X16-2530-11 (3/3), X16-2080-10 (1/1)

27

AO

AP

AQ

AR

AS

KDC-MP925/W8027
1
SWITCH UNIT (X16-2560-xx)

DAN202U
D3 D4 D5 D6 D7 D8 D9 D10
R10
0.01

R1

R2

R3

R5

R6

R8

R4

D1 D2

0.01

R7

0.01

0.01

0.01

D11

0.01

R9

D12

D14

D17

D19

D21

C11

C1

C2

C4

C7

C9

DAP202U DA204K DA204U DTA114YUA

0.01

0.01

0.01

0.01

0.01

D13

D15

D18

D20

ILLUMINATION SW

2
RESET S20
GRN RED KI1

R14 3.3K

Q3

R12 3.3K

Q2

D25 R16
2.2K

Q4

D22

C10

C12

C3

C5

C8

MA142WA UN5212
S11 S16

R15 10K

R13 10K

S6

D24

S1 ATT

R17 10K

SCRL

5

RD6.8M

CN1
DSI 1

10K

R11 240

KI2

3
NC 2 RST 3 GREEN-SW 4 RED-SW 5 KI5 6 KI4 7

Q1

47K

S2

S7

S12

S17

DSI SW

TC74HC02AF
GRN

MENU
RED KI5 KI4 KI3 KI2 KI1 KS4 KS3 KS2 KI4 KS1 15 VOL-B 16 VOL-A 17 D GND 18 PAN-5V 19 ILL +B 20 ILL +B 21 ILL-GND 22 NC 23 ESD GND 24 KI5 KS1 KI3

AUTO

SHIFT

6

X16-253CN2 2/3

KI3 8 KI2 9 KI1 10

S3

S8

S13

S18

C

NC 11 KS4 12

BA3830F
1 4 2 3

4

KS3 13 KS2 14

S4

S9

S14

S19

TC7SH08FU
FM AM

S5 S21

S15

5
OPEN

S10 SRC

M5237ML

KS1

KS2

KS3

VOLUME (X16-256x-xx)
MODEL NAME D11-15, UNIT C1-5, R1,2 R3,4 R5 R6-10 D1-10 No. 7-12 17-22

KS4

KDC-MP925/W8027 (3/3)
Q1 : DTA114YUA Q2-4 : 2SD2114K D24 : B30-1566-05 D25 : DAN222 GND LINE B LINE
560 470 390 750 330 470 560 180

LB1930M

6

KDC-X979