Kenwood KDC-W9027, KDC-PSW9527, KDC-9026R Service Manual

CD RECEIVER

KDC-9026R KDC-PSW9527 KDC-W9027 KDC-X979

SERVICE MANUAL

Panel assy KDC-9026R (A64-3236-11)

KDC-9026R

Panel assy KDC-W9027 (A64-3238-01)

Panel assy KDC-PSW9527 (A64-3237-11)

KDC-PSW9527

Panel assy KDC-X979 (A64-3235-11)

KDC-W9027

* DC cord (E30-6294-05)

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

Lever (D10-4674-04) x 2

* Depends on model. Refer to the parts list.

* DC cord (E30-4942-05)

*Remote controller assy (A70-2040-05) : RC-505

* Escutcheon (B07-3078-01)

(B07-3079-01)

*Size AA Battery

(Not Supplied)

Mounting hardware assy (J21-9823-03)

* Antenna adaptor (T90-0552-05)

Plastic cabinet assy (A02-2731-13)

*Screw set (N99-1723-05)

TDF PANEL INFORMATION MODEL PARTS NO. PANEL NAME KDC-9026R KDC-PSW9527 Y33-1790-60 TDF-M9000 KDC-X979 KDC-W9027 Y33-1790-61 TDF-M7000

Screw (N99-1734-05)

KDC-X979

KDC-9026R/PSW9527 KDC-W9027/X979

● ELECTRIC UNIT

(X34- )

TUNER

AUDIO OUT

Q303,304

S-METER

SW5V

IC1

E2PROM

TDF UNIT (X16-208)

DISPLAY

UNIT

(X16-253)

SWITCH UNIT

(X16-256)

AM+B

BU5V 8V CD5V

BACK UP

REMO

IC7

LEVEL SHIFT

IC11

IC9

ROT ARY ENCODER

IC14

u-COM

SW5V

RDS DECODER

E2PROM

SW5V

LEVEL SHIFT

BPF

BU5V

IC8

PANEL5V

KEY

KEY MATRIX

AGC

IC2

IC4

IC10

SW5V

BUFFER

IC1

2.5V

MASK ROM

FLASH ROM

BPF

BLOCK DIAGRAM

IC2

FM AM CD CH

E-VOL

MPX

QUAL

LEDLED

ILL+

AGC

RESET SW

LEVEL SHIFT

SYSTEM MICROPROCESSOR

BU5V

Q6,10

PANEL SW5V

IC6

3.3V

SW3.3V

FL3.3V

Q2,3

FL+B

KEY ILL

BAS S

L.P.F

L.P.F L.P.F L.P.F

IC10

DSP3.3V

8V 8V

DSP

IC15

MOTOR

FL+B

FAC

1/2VCC

IC8

SERVO

PANEL MECHA

SW5V SERVO

DC/DC

ILL+

RESET

BU5V

IC16

MOTOR DRDR

IC9

3.3V

SRAM

MUTE DRIVER

Q207,208

PRE MUTE

Q203,204

PRE MUTE

Q205,206

PRE MUTE

IC4

POWER IC

BU5V

IC18

Q23,24

ANT-CON ANT CON

Q25

EXT AMP

Q26

TEL MUTE

Q29

ACC DET

Q27

BU5V

SW5V

SW14V

DC/DC A8V

CD5V

AUX IN

IC13

OP AMP

IC12

OP AMP

IC11

OP AMP

P-CON P CON

DIMMER DIMMER

B.U DET

Q1,2

BU5V

Q3,601

SW 5V

Q4,5

SW 14V

Q6-8

A8V

Q9,602

SERVO

Q11-14

FL+B

IC19

SW REG

PRE OUT (SUB WOOFER) (CENTER)

PRE OUT (REAR)

PRE OUT (FRONT)

SP OUT (FL) SP OUT (FR) SP OUT (RL) SP OUT (RR)

WIRED REMO/ OPEL DISP I/F

EXT.AMP.CON

TEL MUTE

ACC

BACK UP

● CD PLAYER UNIT

KDC-9026R/PSW9527 KDC-W9027/X979

BLOCK DIAGRAM

(X32-5520-00) DPU1 :

OPTICAL PICKUP

ACB

FO COIL TR COIL

DM2

SLED MOTOR

DM1 SPINDLE MOTOR ASSY

SPINDLE MOTOR

LIM SW

D.GND

DM3

LOADING MOTOR

APC

IC6

4CH PWM DRIVER

IC1

MOTOR DRIVER

S.GND

IC7

RF AMP/ SERVO PROCESSOR/ MP3 DECODER/ WMA DECODER/ 1Mbit SRAM

VREF

CLOCK

16.898MHz IC8

DRAM 16Mbit

1.6V REG.

D.GND

IC9

A3.3V REG

IC5

MICROPROCESSOR (CD MECHANISM

CONTROL)

CLOCK

4.00MHz

IC10

PON

LPF

D.GND

IC4

D3.3V REG

IC2

D3.3V REG

D.GND

S.GND

MAIN BOARD

A+8V

L-ch R-ch

A.GND

MRST MSTOP CLK DATA MUTE L MUTE R

BU.+5.0V D.GND

S.+5.0V S.GND

8EJE/LOS SW

LOE SW

12EJE SW

LOS SWD.GND LOAD

EJECT

COMPONENTS DESCRIPTION

● SUB CIRCUIT UNIT (X16-2080-10)

Ref No. Application / Functions Operation / Condition / Compatibility

IC1 E2PROM E2PROM for security

● DISPLAY UNIT (X16-2530-10/11)

Ref No. Application / Functions Operation / Condition / Compatibility

IC1 Panel microprocessor Panel control microprocessor IC2 ROM IC Graphic ROM IC3 Flash ROM IC For Display customize memory IC IC4 AVR For 3.3V power supply IC5 AVR For 2.5V power supply IC6 Buffer IC Level shift buffer IC (5V→3.3V) IC7 Buffer IC Level shift buffer IC (3.3V→5V) IC8 Remote control IC For Remote control sensor IC9 Logic IC Control for FL contrast IC10 Analog IC Spectrum analyzer IC Q1 3.3V Regulator While PAN5V is applied when 3.3V regulator output is +3.3V Q2 2.5V Regulator While PAN5V is applied when 2.5V regulator output is +2.5V Q3,4 FL +B SW FL +B (VDD1) is turned on when Q3 base level goes H

KDC-9026R/PSW9527 KDC-W9027/X979

COMPONENTS DESCRIPTION

Ref No. Application / Functions Operation / Condition / Compatibility

Q5 3.3V SW SW3.3V is turned on when Q5 base level goes L Q6,200 FL 3.3V SW FL +3.3V (VDD1) is turned on when Q200 base level goes H Q7,8 Remote control ON SW The power supply of IC8, 10 is turned on when Q10 base level goes H Q9 FL BLK SW VFD is turned on when Q9 base level goes H Q10 Display blackout LED SW Green LED is turned on when Q10 base level goes H Q11 Red LED SW Red LED is turned on when Q11 base level goes H

● SWITCH UNIT (X16-2560-10)

Ref No. Application / Functions Operation / Condition / Compatibility

Q1 DSI LED SW DSI LED blinks when Q1 base level goes H/L Q2 KEY Illumination SW (Green) KEY Illumination SW “ON” when the Q2 base level goes H Q3 KEY Illumination SW (Red) KEY Illumination SW “ON” when the Q3 base level goes H Q4 KEY Illumination SW (Blue) KEY Illumination SW “ON” when the Q4 base level goes H

● CD PLAYER UNIT (X32-5520-00)

Ref No. Application / Functions Operation / Condition / Compatibility

IC1 Motor driver Loading & Eject motor driver IC2 AVR BU3.3V AVR IC4 AVR SW3.3V AVR (When CNTL is goes H, IC3 is actives) IC5 Mechanism control micro processor IC6 PWM driver Focus, Tracking coil, Feed and Spindle motor driver IC IC7 DSP CD signal processor, RF amp, Servo control, MP3 & WMA decoder IC8 EDO DRAM Date buffer (16MB) IC9 AVR Audio 3.3V AVR (When P-ON level goes H, Q12, 13 are turned ON) IC10 LPF Audio LPF Q1 Switching TR When MRST goes L, Q1 is turned ON Q2 Switching TR When Q1 goes ON, Q2 is turned ON Q6 Switching TR When Q7 goes ON, Q6 is turned ON Q7 Switching TR When P-On goes H, Q7 is turned ON Q8 APC Auto power control & A 5V constant current circuit Q9 Driver 1.6V AVR driver Q10 Switching TR Loading & Eject motor drive voltage selector Q11 Switching TR Guarantee of proper operation for between IC’s Low level voltage Q12 Switching TR When Q13 base level goes H, Q12 is turned ON Q13 Switching TR When P-On goes H, Q13 is turned ON

● ELECTRIC UNIT (X34-3050-11/21, X34-3052-71/72)

Ref No. Application / Functions Operation / Condition / Compatibility

IC1 System control IC System control microprocessor IC2 E-VOL & tuner IC E-VOL. FM/AM tuner & stereo decoder IC3 Power supply IC For A8V AVR IC4 Audio power IC Audio power amplifier IC7 Power supply IC -9V AVR (For 4.5V Pre-out) IC8 Reset IC When BU5V line voltage is less than 3.5V, this IC output line is “L” IC9 Muting logic IC Control for MUTE, P-ANT & RESET muting IC10 Buffer IC For spectrum analyzer IC11~13 OP AMP For 4.5V Pre-out IC14 RDS decoder Decode for RDS signal

KDC-9026R/PSW9527 KDC-W9027/X979

COMPONENTS DESCRIPTION

Ref No. Application / Functions Operation / Condition / Compatibility

IC15,16 Motor driver Control for Panel mechanism motor IC18 P-CON IC Power control IC IC19 Power supply IC Switching regulator IC for CD4.7V IC20 Analog SW Logic IC for muting control Q1,2 BU 5V AVR While BU is applied when BU5V regulator output is +5V Q3,601 SW5V AVR When Q601base level goes H, SW5V regulator output is +5V Q4,5 SW14V AVR When Q5 base level goes H, SW14V regulator output is +14V Q6~8 Audio 8V AVR When Q6 base level goes H, A8V regulator output is +8.3V Q9,602 Servo +B AVR When Q602 base level goes H, S+B regulator output is +7.5V Q11~14 Illumination & DC/DC +B AVR When Q11 base level goes H, AVR output is +9.2V Q15,16 Audio 10.5V AVR When Q16 base level goes H, AVR output is +10.5V

Q17~19 Pre Amp & -9V AVR

Q20~22 Pre Amp & +9V AVR

Q23,24 P-ANT SW When Q23 base level goes H, P-ANT SW output is +14V Q25 Buffer EX amp control buffer Q26 Small lamp det. SW When Q26 base level goes H, Q26 turned ON Q27 BU detector When Q27 base level goes H, Q27 turned ON Q29 ACC detector When Q29 base level goes H, Q29 turned ON Q30,31 Muting driver When base level goes L, muting driver is turned ON Q32,33 Surge DET. When Q32 base level goes H, Q32, 33 are turned ON Q34 Muting driver When Q34 base level goes L, muting driver is turned ON Q201 Buffer Noise detect buffer amp Q202 E-VOL muting SW When Q202 base level goes H, muting SW is turned ON Q203~208 Pre-out muting SW When base level goes H, Pre-output is muted Q210 AGC For AGC for spectrum analyzer Q303,304 AM +B SW When Q303 base level goes H, AM +B is out to tuner unit

Q18, 19 work as differential amplifier, Q17 wark as driver and -9.1V is supplied to OP AMP for Pre-out Q20, 22 work as differential amplifier, Q21 wark as driver and +9.4V is supplied to OP AMP for Pre-out

● ELECTRIC UNIT (X34-3060-10, X34-3062-71)

Ref No. Application / Functions Operation / Condition / Compatibility

IC1 OP AMP Buffer amp for ADC input (DSP Lch) IC2 OP AMP Buffer amp for ADC input (DSP Rch) IC3 OP AMP LPF for DAC output (DSP Front) IC4 OP AMP LPF for DAC output (DSP Rear) IC5 OP AMP LPF for DAC output (DSP Sub & Center) IC6 OP AMP Sub output amp IC7 Analog SW Bus management SW (Dolby prologic II) IC8 OP AMP Bus management accumulator (Dolby prologic II) IC9 OP AMP Reference AVR IC10 DSP Audio DSP (24bit 2ch ADC & 6ch DAC) IC11 SRAM For DSP IC12 Buffer IC Level shift buffer IC(5V→3.3V) IC13 AVR D 3.3V AVR (For DSP) IC14 AVR A 3.3V AVR (For DSP) Q1 AVR 3.3V regulator Q2 AVR 3.3V regulator

KDC-9026R/PSW9527 KDC-W9027/X979

MICROCOMPUTER’S TERMINAL DESCRIPTION

● SYSTEM MICROPROCESSOR : 703030YGCJ07-A (X34-305 : IC1)

Pin No. Pin Name I/O Description / Processing Operation

1CD SDA I/O CD mechanism, IC2, IC5, ROM correction DATA line 2 TUN SCL I/O Clock input/ output to Tuner front-end 3 RDS AFS M I/O RDS control for MPX PLL hold 4NC -NC 5 CD SCL I/O CD mechanism, IC2, IC5, ROM correction CLOCK line 6 EVDD - VDD 5V 7 EVSS - GND 8 RDS AFS L I/O RDS control for MPX PLL hold 9 PWIC BEEP O BEEP audio output terminal 10 REMO I Remote control input terminal 11 BMS O PL2 BMS control terminal (H : BMS ON, L : BMS OFF) 12 DSP RQ O DSP chip select output terminal ( L : Active) 13 DSP SI O DSP serial data output terminal 14 DSP CLK O DSP serial data clock output terminal 15 DSP CODEC RST O Reset for DSP (AD/DA & DSP, L : RESET) 16 DSP INT RST O Reset for DSP (System reset, L : RESET) 17 DSP MUTE O DSP input muting control (L : Mute ON, H : Mute OFF) 18 TEST - NC (GND) 19 PWIC MUTE O Audio power IC muting control terminal (POWER OFF, ALL OFF, TEL MUTE : L) 20 P STBY O Audio power IC Stand-by terminal (POWER IC ON, ALL OFF : H, POWER IC OFF : L) 21 P CON I/O Power control terminal (POWER ON : H, POWER OFF, ALL OFF : Hi-Z) 22 DIAG I Over voltage/Over current detection terminal (Normal : H, Bad condition : L) 23 MUTE O Muting control terminal (ON : OPEN, OFF : L) 24 MUTE PRE R O PREOUT (Rch) muting control terminal 25 MUTE PRE L O PREOUT (Lch) muting control terminal 26 EXT AMP CONT O External amplifier control terminal 27 BU DET I 28 ACC DET I ACC detection terminal (With ACC : L, Without ACC : H) 29 ILLUMI DET I Small lamp detection terminal (ON : L, OFF : H) 30 31 RESET I Reset input terminal 32,33 XT1/XT2 - Sub clock (32.768kHz) 34 REGC - Connect to 1u capacitor 35,36 X2/X1 - Main clock (20MHz) 37 VSS - GND 38 VDD - AVR 5V 39 CLKOUT - NC 40 LX REQ M O Communication request to external slave unit (Request : L) 41 LX MUTE I Mute request from external slave unit (MUTE : H)

ANT CONT (TYPE2)

Momentary power dropped detection terminal (No Backup, Momentary power dropped : H, Backup : L)

I/O Antenna control/ Destination select terminal (TUNER ON : H)

Fig.

KDC-9026R/PSW9527 KDC-W9027/X979

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Description / Processing Operation

42 LX CON O External slave unit (ON : H, OFF : L) 43 LX RST O Reset output to external slave unit (Normal : L, After system reset : H 400ms or more and then L) 44 P ON I/O SW14V, SW5V control terminal (POWER ON : H, POWER OFF : Hi-Z) 45 PON ILL I/O FL, illumination control terminal (ON : H, OFF : Hi-Z) 46 PON CD O CD5V output terminal (CD : H, Except CD source : L) 47 FAC1 O FAC motor driver control terminal (Pulls cycle 16ms) 48 NC - NC 49,50 TYPE0/TYPE1 I Destination select terminal 51 PON PAN O Panel 5V control terminal (ON : H, Momentary power dropped : Hi-Z) 52 DSI I/O DSI control (ON : L, OFF : Hi-Z) 53 MC REQ O Communication request to panel microprocessor 54 PAN RST O Reset output to panel microprocessor (Normal : H, Reset, Momentary power dropped : L) 55 DVDD - AVR 5V 56 DVSS - GND 57 SC CON O Panel microprocessor control terminal (POWER OFF, ACC OFF : L) 58 CD MRST O Reset output to CD mechanism (Normal : H, Reset : L) 59 CD MSTOP O Stop request to CD mechanism (STOP : L, CD : H) 60 CD LOE SW I CD DOWN SW detection terminal (CD disc chucking : H) 61 CD EJECT O CD mechanism loading/ eject control 62 CD LOAD O CD mechanism loading/ eject control 63 FPM MOTOR B O FPM mechanism (Slider) control terminal 1 64 FPM MOTOR F O FPM mechanism (Slider) control terminal 1 65 FPM MOTOR O O FPM mechanism (Angle) control terminal 1 66 FPM MOTOR C O FPM mechanism (Angle) control terminal 1 67 OPEL DATA I/O External display DATA terminal 68 OPEL CLK I/O External display CLK terminal 69 OPEL CE I/O External display chip enable terminal 70 CD MUTE R I Mute request from CD mechanism (Rch ON : L) 71 AVDD - AVR 5V 72 AVSS - GND 73 AVREF I Connect to P-ON(45PIN) 74 CD MUTE L I Mute request from CD mechanism (Lch ON : L) 75 PAN DET I PANEL, E2PROM detection terminal (With panel : L, Without : H) 76 LINE MUTE I PHONE detection terminal (TEL MUTE : 1V or less, NAVI MUTE : 2.5V or more)

77 FPM SW4 I

78 FPM SW1 I FPM mechanism position detect terminal 1 79 FPM SW2 I FPM mechanism position detect terminal 1 80 FPM SW3 I FPM mechanism position detect terminal 1 81 FPM PHOUT I FPM mechanism position detect terminal (2.2V or more : H) 1

FPM mechanism position detect/ CD Mechanism detection terminal (3.75V or more : No mechanism,

1.25V or more : H, Less than 1.25V : L)

Fig.

KDC-9026R/PSW9527 KDC-W9027/X979

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Description / Processing Operation

82 TUN SMETER I S meter detection terminal 83 RDS NOISE I FM noise detection terminal 84 TUN IFC OUT I Front end IFC OUT input terminal (Receiving station : 2.5V or more) 85 PWIC DC DET I Audio power IC DC offset detection (H : OK, L : ERROR) 86 CD 8EJE I 8cmDISC detection terminal (8cmDISC : L) 87 RDS CLK I RDS decoder clock input terminal 88 LX REQ S I Receive request from external slave unit (Request : L) 89 SC REQ I Communication request from panel microprocessor 90 CD LOS SW I LOADING SW detection terminal (LOADING start, POWER OFF : L) 91 CD 12EJE I 12cmDISC detection terminal (12cmDISC, POWER OFF : L) 92 R QUAL I RDS decoder QUAL input terminal 93 R DATA I RDS decoder DATA input terminal 94 LX DATA S I Data input from external slave unit 95 LX DATA M O Data output to external slave unit 96 LX CLK I/O Clock input / output with external slave unit 97 PAN RX I Data input from panel microprocessor 98 PAN TX O Data output to panel microprocessor 99 PON AM I/O AM+B (AM operation : H) 100 TUN SDA I/O Clock input/ output to Tuner front-end

Fig.

Fig.1 FPM motor control

SLIDE FPM mechanism

FPM MOTOR B FPM MOTOR F operation

LLStandby HLBackward operation LHForward operation HHBrake

ANGLE FPM mechanism

FPM MOTOR O FPM MOTOR C operation

LLStandby HLAngle open direction LHAngle close direction HHBrake

KDC-9026R/PSW9527 KDC-W9027/X979

MICROCOMPUTER’S TERMINAL DESCRIPTION

● PANEL MICROPROCESSOR : 703132GJ011-A (X16-253 : IC1)

Pin No. Pin Name I/O Description / Processing Operation

1~7 D14~D8 I/O External ROM data input/output terminal 8 3.3VDD - AVR 3.3V 9 VSS - GND 10~17 D7~D0 I/O External ROM data input/output terminal 18 FL GCP1 O FL bright control terminal 19 SC REQ O Communication request to system microprocessor (H : Request) 20 MC REQ I Request from system microprocessor (H : Request) 21 SC CON I Panel microprocessor control (H : While operation) 22 FL BLK O Display control SW for FL driver (H : Display ON, L : Display OFF) 23 2.5V VDD - AVR 2.5V 24 VSS - GND 25~27 KS5~KS3 O Key scan output terminal 28,29 TDI/TDO - NC 30,31 KS2,1 O Key scan output terminal 32 TRST I NC 33 ROTARY CCW I Volume input terminal 34 ROTARY CW I Volume input terminal 35,36 TMS/TCM O NC 37 3.3VDD - AVR (3.3V) 38 VSS - GND 39~42 KI1~KI4 I Key return input terminal 43 FLGCP2 O FL bright control terminal 44 NC - NC 45 SYS TX I DATA input from system microprocessor 46 SYS RX O DATA output to system microprocessor 47 FL CLK3 O Clock output to FL driver 48 KI5 I Key return input terminal (SRC, OPEN, EJECT interrupt port) 49 FL DATA3 O DATA output to FL driver 50 SCK1 I Clock input from FL driver 51 NC - NC 52 FL DATA2 O DATA output to FL driver 53 CLK IN1 I Clock input from FL driver 54 NC - NC 55 FL DATA1 O DATA output to FL driver 56 3.3VDD - AVR (3.3V) 57,58 X2/X1 - Main clock (5MHz) 59~61 62 2.5V VDD - AVR 2.5V 63 VSS - GND

CVSS/CKSEL/PSEL

- GND

KDC-9026R/PSW9527 KDC-W9027/X979

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Description / Processing Operation

64,65 MODE0,1 - GND 66 PAN RST I Reset signal request form system microprocessor (L : Reset) 67 VREF - Connect to 83PIN (VREF) 68,69 NC - NC 70,71 AVSS1,0 - GND 72 VREF - Connect to 83PIN (VREF) 73 WAVE IN I Audio signal input terminal 74 F06 I Spectrum analyzer input terminal (BPF 10KHz) 75 F05 I Spectrum analyzer input terminal (BPF 3.3KHz) 76 F04 I Spectrum analyzer input terminal (BPF 1KHz) 77 F03 I Spectrum analyzer input terminal (BPF 330Hz) 78 F02 I Spectrum analyzer input terminal (BPF 150Hz) 79 F01 I Spectrum analyzer input terminal (BPF 63Hz) 80 NC - NC 81 2.5V VDD - AVR 2.5V 82 VSS - GND 83 VREF CON O VREF control terminal (Connect to VREF terminal) 84 NC - NC 85 FLGCP3 O FL bright control terminal 86 NC - NC 87 FL LATCH O Latch output to FL driver IC 88,89 NC - NC 90 REMO ON O Power supply control for remote control IC (H : ON, Hi-Z : OFF) 91 FL3.3V SW O FL3.3V control terminal (H : ON, Hi-Z : OFF) 92 FL+B SW O FL+B control terminal (H : ON, Hi-Z : OFF) 93 3.3V SW O 3.3V control terminal (L : ON, Hi-Z : OFF) 94 NC - NC 95 OE O OE control for Flash ROM (L : DATA transmission, Hi-Z : Wait ready) 96 NC - NC 97 WE/WR O WRITE/READ control for Flash ROM (L : Writing, Hi-Z : Wait ready) 98 3.3V VDD - AVR 3.3V 99 EVSS - GND 100 CE ROM O CE control for ROM (L : DATA transmission, Hi-Z : Wait ready) 101 CE F/ROM O CE control for Flash ROM (L : DATA transmission, Hi-Z : Wait ready) 102 103,104 NC - NC 105 GREEN LED O Select for illumination (GREEN H : ON, L : OFF) 106 RED LED O Select for illumination (RED H : ON, L : OFF) 107 DISP LED O DISP LED control (Normal H: ON, L : OFF) 108 BLACK DISP O Light up to DISP LED (H : ON, L : OFF)

FLASHROM CHECK

OWriting condition check for Flash ROM (H : OK, L : NG)

KDC-9026R/PSW9527 KDC-W9027/X979

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Description / Processing Operation

109,110 NC - NC 111 SA RST O Reset for spectrum analyzer (H : Reset, L : Normal) 112 3.3V VDD - AVR 3.3V 113 EVSS - GND 114~117 118~123 124 2.5V VDD - AVR 2.5V 125 VSS - GND 126~133 134 3.3V VDD - AVR 3.3V 135 EVSS - GND 136~143 144 D15 I/O External ROM data input/output terminal

NC - NC A21~A16 O Address bus

A15~A8 O Address bus

A7~A0 O Address bus

● CD MECHANISM CONTROL MICROPROCESSOR : UPD63761GJ (X32-552 : IC7)

Pin No. Pin Name I/O Description / Processing Operation

1AVREF0 - Reference voltage to A/D converter 2AVSS - GND (For AD converter) 3 SLD1 O Stepping motor control terminal 1 4 SLD2 O Stepping motor control terminal 2 5AVREF1 I Reference voltage to D/A converter 6D-MUTE O MUTE driver (L : MUTE ON) 7 BMS O BMS MODE (L : R-BRAKE) 8 IC/FLMD0 - FLASH memory writing voltage output 9 VDD - AVR (3.3V) 10 REGC - Connect to 1u capacitor 11 VSS - GND 12,13 X1/X2 - System clock 14 RESET I Reset input terminal (L : RESET) 15~17 NC - NC 18 MSTOP I Interrupt for Standby mode (L : STOP) 19 INTSV I Interrupt for servo IC 20 FOGUP I Interrupt for focus gain up (L : NORMAL) 21 FOK I Focus condition detect (L : Focus OK) 22 E2P_SDA I/O E2P I2C data for ROM correction 23 E2P_CLK O E2P I2C clock for ROM correction 24~26 NC - NC 27 TZC I Tracking Zero cross input terminal 28 LIM_SW I Pickup inside detector (L : Inside)

KDC-9026R/PSW9527 KDC-W9027/X979

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Description / Processing Operation

29 PON O Power ON/OFF control (L : Power OFF) 30~32 NC - NC 33 EVSS - GND 34 EVDD - VDD 35 SYS_SDA I/O System I2C data input / output terminal 36 SYS_SCL I/O System I2C clock input / output terminal 37 MUTE_L O Lch audio mute control (L : MUTE OFF) 38 MUTE_R O Rch audio mute control (L : MUTE OFF) 39 PIC_SEL I PICKUP selector (L : KCP8C) 40 E2P_WR I Writing condition for E2PROM (L : NORMAL) 41 ASEL I Audio output detector (L : noninverted signal output) 42 SHOCK_SEL I SHOCK PROOF selector (L : Consist in data for buffer memory) 43,44 NC - NC 45 M_REM O Memory remaining amount monitor output (L : Memory remaining amount less than 75%) 46 NC - NC 47~50 TEST1-4 I TEST MODE1-4 51~57 NC - NC 58 FG - NC 59 DSP_RESET O DSP reset control terminal (L : RESET) 60 CS O Chip select control (L : ON) 61 WAIT I WAIT control signal detect terminal 62~64 NC - NC 65 WR0 O Multiplex write signal output terminal 66 NC - NC 67 RD O Multiplex RD signal output terminal 68 ASTB O Multiplex ASTB signal output terminal 69 BVSS - GND 70 BVDD - AVR (3.3V) 71~78 AD0~AD7 I/O Multiplex address/ data bus 79~83 AB8~AB12 O Multiplex address/ bus 84~86 NC - NC 87 ZMUTE_L I Lch 0bit MUTE detector (L : MUTE OFF) 88 ZMUTE_R I Rch 0bit MUTE detector (L : MUTE OFF) 89~99 NC - NC 100 HOT I Temperature rise detector (Detect voltage : 2.55V : 95°C, Release voltage : 2.47V : 90°C)

TEST MODE

KDC-9026R/PSW9527 KDC-W9027/X979

● How to enter the test mode

While pressing and holding the Preset 1 and Preset 3 keys, reset the unit.

● 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.)

● 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” : Comm unication 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 AUTO→Forced Wide→Forced Middle→Forced Narrow→AUTO. The initial status is AUTO and the display shows these modes as follows.

• AUTO : FMA

• Forced Wide : FMW

• Forced Middle : FMM

• Forced Narrow : FMN

● 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 Trac k Up k e y jumps to the f ollo wing tr ac k numbers :

No. 9→No. 15→No. 10→No. 11→No. 12→No. 13→No. 22 →No. 14→No. 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 shor t 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.

●Audio-related specifications (Model KDC-X979/

9026R/PSW9527/W9027)

• Pressing the ✽ key on the remote initiates the audio adjust-

ment 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.

• 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 220Hz) with

the Track Up/Down keys (Default value at OFF).

• LPF : (Default value at through).

• Each press of the PRO LOGIG II key should s witch in Bass

management control.

● 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).

KDC-9026R/PSW9527 KDC-W9027/X979

TEST MODE

● 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 activ ated at this time.)

● Special display when the display is all on

Pressing the Preset keys while the power is ALL OFF displays the following information.

[PRESET 1]

[PRESET 2]

[PRESET 3]

[PRESET 4]

[PRESET 5]

[PRESET 6]

FM key Display ROM collection version.

AM key Display panel E2PROM condition.

TRACK UP AUDIO data default setting ( KDC-X979, 9026R, key PSW9527, W9027 only)

Version display (8 digits, Month/Day/Hour/Minute) (Display) SYS xxxxxxxx :

PAN xxxxxxxx : FL model only MEM

xxxxxxxx : Serial number display (8 digits) (Display) SNo xxxxxxxx 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 Max. 60000 (hours) 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) 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) 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)

(Display) ROM R xxx Invalid : “R – – –”

(Display) P–ROM OK (Registered code)

P–ROM NG (Code is write in error) P–ROM WAIT (Unregistered code) P-ROM NON

(Display) AUDIO INIT

4 contrasts FL model only

(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 Eject→Last with a short press of the PLAY/PAUSE keys.

● Other specifications

• 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.

●Check the Flash ROM (KDC-X979, KDC-9026R,

KDC-W9027)

1. Display to the following effect at ALL OFF by assortment

system computer and panel for cover the customization model attach the panel with no Flash ROM.

• Customization system computer + Flash ROM panel : All lighting

• Non customization system computer + Non Flash ROM panels : All lighting

• Customization system computer + Non Flash ROM panel : Panel NG

• Non customization system computer + Flash ROM panel : Panel NG

2. Output (Hi) to the FLASHROM_CHECK terminal on 102 pin when Flash ROM is function properly.

3. Flash ROM data is initialized when pressing the AM key long hold at all lighting.

Display is “Data Erase .... ” in data erasing mode . Do not touch

anything this mode. When the data erase completed, display is “Erase OK!!”. If display is “Erase NG!!!!!!”, Flash ROM data unable erase for some kind or another factors. When same effect as pressing the AM key long hold and data erase once again, Flash ROM is defective.

TEST MODE

KDC-9026R/PSW9527 KDC-W9027/X979

● 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.

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.

● 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 possib le 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.

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/T r ack Up/Track Do wn 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 Trac k 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.

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 displa y is “P-R OM NG”, so detach the panel and rewrite after the display is “PROM WAIT”. This code can not clear.

4. Simple way to c lear 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 T rac k 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 T r ack Up key. (Enters an “A” )

• Press the remote controller 7 key twice, and press the T rac k 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.

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