Kenwood KD-CX-790 Service Manual

CD RECEIVER

KDC-W8534/W8534Y KDC-X790

SERVICE MANUAL

B53-0361-00 (N) 825

A unique identification number (Unique ID) is given to each unit, which is imprinted on the CD mechanism assembly. If and when the mechanism assembly or Flash ROM (IC17) on the mechanism board is replaced, it is necessary to write the Unique ID. For details, refer to "How to Write the Unique ID" on Page 24.

KDC-W8534 KDC-W8534Y

(E type)

KDC-X790

(K type)

CD MECHANISM EXTENSIONCORD (24P) : W05-0934-00

TDF PANEL INFORMATION

MODEL TDF PANEL No. TDF NAME KDC-W8534/W8534Y Y33-2430-63 TDF-W8534 KDC-X790 Y33-2430-60 TDF-67DX

Panel assy (A64-3734-02)

Panel assy (A64-3730-02)

DC cord (K type) (E30-6408-05)

Carrying case (W01-1661-05): E type (W01-1664-05): K type

Lever (D10-4589-04) x2

DC cord (E type) (E30-6412-05)

Compact disc (W01-1647-15): E type (W01-1643-25): K type

Antenna adaptor (E type) (T90-0523-05)

Remote controller assy (A70-2067-15)

RC-527

Escutcheon (B07-3125-01)

Screw set (K type) (N99-1758-05)

SIZE AA BATTERY (Not supplied)

Mounting hardware assy (J21-9716-03)

Tapping screw (N09-6280-05)

This product uses Lead Free solder.

KDC-W8534/W8534Y KDC-X790

BLOCK DIAGRAM

BU5V

(FST)

E2PROM

FST

LX BUS

F/E

CD MD

Q450

Q40

Q10

AUX IN

PRE OUT (FRONT) PRE OUT (REAR) PRE OUT (SW)

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

WIRED REMOTE OPEL DISP

P CON

ANT CON

EXT.AMP.CON

DIMMER

LINE

ACC

BACK UP

A8V

SPE

MD-DET

ANA

AGC

E-VOL

WININ OFFSET

MUTE 0,1,2

MUTE A,C

DCERR

MPX RDS

Q402

AM+B

SW5V

for

BU5V A8V SERVO D5V

A8V

SW5V

IC100

RESET IC BU5V

IC300

AUX FM/AM CDorMD CH

IC400

RDS DECODER

INSTALLER MEMO ROM CORR

PANEL

KEY

SPE ANA

LEVEL

IC3

ROM CORR

KEY ILL

ILL+B

ED1

IC4

PANEL u-COM

BACK

RESET SW

KEY MATRIX

DSI

IC1

FLASH ROM

ROTARY

SPE ANA

ENCODER

IC2

IC6

REMO. CON.

IC5 IC3

D3.3V D5VBU5V

IC1

A3.3V A5V

IC4

IC303 IC305

ADC

LPF DAC LPF

DSP

LEVEL

D3.3V

SHIFT

IC102

MUTE 0,1,2

RST

STBY

PRE MUTE

MUTE A,C

u-COM

LEVEL SHIFTSHIFT

IC5

RESET IC

SW3.3V

Q7,8

IC11

IC10

SW5V

D3.3V

D2.5V

FL+BFL3.3V

BU5V

IC800 Q802

A3.3V REF+B

IC800

SVR REF

IC103

MUTE DRIVER

RST

PANEL OPEN/ CLOSE DET

PANEL MECHA

DRIVE COMP

3.3V SW5V

SERVO

D5V

Q22

IC450

MOTOR DRIVER

Q31

Q64

IC80

DC/DC (FL)

Q63

Q203,204

BU5V

SW5V

SERVO

CD5V

FL DC

Q608-613

IC601-603

PRE MUTE AMP

IC750

POWER IC

IC200

P-CON

Q208

ANT-CON

Q206

EXT AMP

Q207

DIMMER

TEL MUTE

Q202

ACC DET

SURGE DET

Q205

B.U DET

Q20

Q12

IC10

A8V

IC600

Q30

Q50

Q41

BU5V

SW14V

A8V

DC/DC (5VPRE)

MOTOR +B

PANEL 5V

SW16V

ILL+B

CD PLAYER UNIT (X32-5730-0x)

TR COIL

FO COIL

SP MOTOR LOADING &

SLED MOTOR

POWER ON

D5V

IC5

3.3V REG.

IC21

3.3V REG.

IC20 IC19

1.8V REG.

SW3.3V(712)

IC2

IC4

MOTOR DRIVER

SW3.3V (712)

SW3.3V (CS7410)

SW1.8V (CS7410)

RF AMP SERVO DSP

A8V

BU5V

16.898MHz

S7.5V

3.3V REG.

POWER ON

IC1

SI STB SCK

RESET

SO INTQ

EMPH

I2S

RESET

IC15

CD I/F

SREQ BREQ

SER/GPIO

ACD DECODER MP3/WMA/AAC DECODER

SW5V

CLK

DI PCM DATA

DOCS

C16M DATA

LRCK BCLK FLAG

SW3.3V

(CS7410)

SW1.8V

IC14

5V REG.

DATA MUTE

BU3.3V

26.88MHz

u-COM

DAC RST

DAC MUTE

MEMORY CONTROLLER

BU3.3V

INFINITY 0 DET.L/R

DAC CONTROL

PCM LRCK PCM BCLK PCM XCK

ROM 8BIT 0-2MB

DRAM 4,8,16BIT 256k-8MB

IC18

SW3.3V

(CS7410)

SW3.3V

(CS7410)

3.3 5V

DAC

IC17

IC16

2x512kx16BIT

SW5V

SW3.3V(712)

FLASH ROM 4MBIT

512kx8BIT

SDRAM 16MBIT

3.3 5V

IC13

LPF

LOS-SW

12EJE-SW

8EJE-SW

LOE/LIM SW

MSTOP,MRESET

AUDIO MUTE L/R

L/R

BU5V A8V D5V S7.5V

I2C

KDC-W8534/W8534Y KDC-X790

COMPONENTS DESCRIPTION

● ELECTRIC UNIT (X34-3730-12/4242-7x)

Ref. No. Application / Function Operation / Condition / Compatibility

IC1 DSP Analog Power Supply Output 3.3V. IC3 DAC Digital Power Supply Output 5.0V. IC4 DAC Analog Power Supply Output 5.0V. IC5 DSP Digital Power Supply Output 3.3V. IC10 Audio 8V Ref Power Supply Output 1.27V.

Power Supply for VFD & Mecha digital.

IC60 Switching Regulator Controller CH1 : VFD (4.7V)

CH2 : Mecha digital (DXM-680x : 4V , Other : 5V) IC80 Switching Regulator Power supply for VFD. (57V) IC100 Reset IC “L” when detection voltage goes below 3.6V or less.

IC102 System µ-com

IC103 Muting logic IC Controls logic for muting. IC104 EEPROM For instraller’s memory IC200 Power Control IC Power control switch IC300 Eelectrical Volume & Source Selecter Controls the source, volume, and tone. IC301,302 Audio buffer AMP Low pass filter for DSP input. IC303 DSP Digital signal processer. IC304 Buffer IC It changes into 3.3V from 5.0V. IC305 DAC Digital to Analog converter. IC306~308 Audio buffer AMP Low pass filter for DAC output. IC400 RDS decoder

Controls FM/AM tuner, the changer, CD/MD mechanism,

Panel, volume and tone.

Panel mecha control

IN1 IN2 Panel mecha

LLWAIT

IC450 Panel mecha motor driver

IC451 G-Analyzer Analog gravity sensor. IC600 ±9V AVR Power supply for 5V Pre Out OP-AMP. IC601~603 5V Pre-out AMP Output buffer and gain control. IC750 Power IC Amplifies the front L/R and the rear L/R to 50W maximum.

IC800

Q10,11 Audio8V AVR When Q11’ 2in goes Hi, A8V AVR outputs 8.0V. Q12 SW14V When Q12’ 2pin goes Hi, SW14V outputs 14V. Q20,21 B.U.5V AVR While BU is applied, BU5V AVR outputs +5V. Q22,23 SW5V When Q23’ base goes Hi, SW5V outputs +5V. Q30,32 Moter+B AVR (Panel Mecha) When Q9’ base goes Hi, Moter+B AVR outputs 7.5V. Q31,33 Servo+B AVR When Q33’ base goes Hi, Servo+B AVR outputs 8.5V. Q40,42,45 Panel5V AVR When Q42’ 2pin goes Hi, anel5V AVR outputs 5V.

Audio3.3V Ref Supply Audio 3.3V Ref supply to electrical volume and all low pass filters. SVR6.8V Ref Supply SVR6.8V Ref supply to power IC.

LHOPEN HLCLOSE HHSTOP

KDC-W8534/W8534Y KDC-X790

COMPONENTS DESCRIPTION

Ref. No. Application / Function Operation / Condition / Compatibility

Q41,43,44 Illumination AVR When Q43’ 2pin goes Hi, Ill AVR outputs 10.5V. Q50~52 SW16V (Surge Protection) When Q51’ 2pin goes Hi, SW16V outputs 13V. Q60 VFD (4.7V) AVR SW When base goes Hi, VFD AVR off.

2pin

1pin

Q61 Switching Regulator frequency control SW (IC60)

Q62 Mecha digital AVR SW

Q63 VFD (4.7V) AVR Switching Power Driver

Q64 Mecha digital AVR Power Driver

Q80,81 VFD (57V) AVR SW When Q81’ base goes Hi, VFD (57V) AVR outputs 57V. Q91 Panel5V Discharge SW When Q91’ base goes Hi, Panel5V is discharged. Q100,101 Panel Detect SW When Q100’ base goes Lo, panel is detected. Q200,201 Pre-out mute driver When a base gose Lo, mute driver is turned on. Q202 Acc Detect SW When Q202’ base gose Hi, Acc voltage is detected. Q204 Surge Detect SW When Q204’ base goes Hi, IC750 is changed into a standby state. Q205 B.U Detected SW When Q35’ base gose Hi, B.U voltage is detected. Q206 Ext Amp Control Buffer It is buffer for IC102 output. Q207 Small-lamp Detect SW When Q207’ base goes Hi, Small-lamp is detected. Q208,209 Power Antenna SW When Q206’ base goes Hi, power antenna switch outputs 14V. Q300 DSP mute SW When base goes Lo, DSP is set to mute. Q402,403 AM+B SW When Q403’ base gose Hi, AM+B is outputs.

Q450 DSI Driver DSI turns off when the base is “H”.

Q600~602 Pre-Amp +9V AVR

Q603~605 Pre-Amp -9V AVR

Q606,607 AUDIO 10.5V AVR When Q606’ base goes Hi, AVR outputs 10.5V. Q608~613 Pre-out mute SW When a base gose Hi, Pre-out is set to mute. Q800,802 REF+B AVR When Q800’ base goes Hi, AVR outputs 13V.

Q801 SVR6.8V Ref Supply AGC Controller

L 400kHz 600kHz H 650kHz 850kHz

When base goes Hi, Mecha digital AVR off. ∗DXM-680x : 4V, Other : 5V This FET is governed by IC60. Frequency is decided at Q61. This FET is governed by IC60. Frequency is fixed 400kHz.

DSI lights when the base is “L”.

DSI turns on and off when panel is taken off. Q600 and 602 works as a differential amplifier, Q601 works as a driver and +9.4V is supplied to OP Amp for Pre-out. Q603 and 605 works as a differential amplifier, Q604 works as a driver and -9.1V is supplied to OP Amp for Pre-out.

When the voltage of B.U voltage falls, a return is hung and an output is reduced.

KDC-W8534/W8534Y KDC-X790

COMPONENTS DESCRIPTION

● SWITCH UNIT (X16-354x-xx)

Ref. No. Application / Function Operation / Condition / Compatibility

IC1

IC4 PANEL µ-COM IC5 RESET IC When panel is attached, IC5 active IC6 REMOTE CONTROL IC Remote control receiver IC7 BUFFER IC It is change into 3.3V from 5V IC8 BUFFER IC It is change into 5V from 3.3V IC9 BUFFER IC For Control ED1 IC10 2.5V REGULATOR The power supply For 2.5V IC11 3.3V REGULATOR The power supply For 3.3V

Q3 BLUE LED SW Blue LED are lighting when Q3’s base level goes “H” Q4 GREEN LED SW Green LED are lighting when Q4’s base level goes “H” Q5 RED LED SW Red LED are lighting when Q5’s base level goes “H”

Q6 SW3.3V SW

Q7,8 SW5V SW

Q9,10 FL3.3V SW FL+3.3V (VDD1) is turned on when Q9’s base level goes “H” Q12 FL BLK SW ED1 is lighted on when Q7’s base level goes “H” Q11,13 FL+B SW FL+B (VDD2) is turned on when Q11’s base level goes “H”

ROM IC FLASH ROM IC

TRIANGLE GREEN LED SW TRIANGLE RED LED SW

Graphics data included

Triangle green LED is lighting when Q1’s base level goes “H”

Triangle red LED is lighting when Q2’s base level goes “H”

SW3.3V the power supply of IC1, 3 is turned on when Q6’s base level goes “L” SW5V the power supply of IC2, 6 is turned on when Q8’s base level goes “H”

● CD PLAYER UNIT (X32-5730-0x)

Ref. No. Application / Function Operation / Condition / Compatibility

IC1 µ-com for mechanism control IC2 LSI for CD signal processing +RF AMP IC4 BTL driver SP,SL (including LO/EJ) motor and PU actuator IC5 SW3.3V regulator 3.3V power supply for IC2, PU, and IC18 digital section IC13 Audio active filter Secondary LPF IC14 A5V regulator 5V power supply for DAC IC15 Compacted audio decoding DSP AC drive decoder,MP3/WMA/AAC decoder IC16 Compacted audio expanding SDRAM IC17 Decoder software, unique ID storage flash ROM IC18 Audio external 24-bit D-A converter IC19 BU3.3V regulator 3.3V power supply for µ-com IC20 1.8V regulator 1.8V power supply for core section of IC15 IC21 Decoder/SDRAM/Flash ROM 3.3V regulator 3.3V power supply for port section of IC15, IC16 and IC17 Q1,4 Level shift (3.3V-5V) FET

KDC-W8534/W8534Y KDC-X790

COMPONENTS DESCRIPTION

Ref. No. Application / Function Operation / Condition / Compatibility

Q3,5,6 Level shift (3.3V-5V) transistor with 2 elements Q7 Level shift (3.3V-5V) transistor Q8 APC (Auto Power Control) transistor

Q9,10

Q11 A5V power supply constant circuit FET Q12,13 SW8V SW transistor Q14,15 SDRAM 3.3V power supply SW transistor SDRAM power supply is turned off when /CSRST is “L”.

D3 Protection diode for pick-up laser diode D4,D5 Diode for securing audio L-R reference voltage

Transistor for preceding beam delaying SW during non-search

UPD63712GC built-in resetting terminal static protection diode

Diode for control terminal’s “L” confirmation for IC20 and IC21

MICROCOMPUTER’S TERMINAL DESCRIPTION

● SYSTEM MICROCOMPUTER : 30625MGPA78GP/30625MWPA79GP (X34 : IC102)

Pin No. Pin Name I/O Function Processing Operation

1 VREF - Analog reference voltage 2AVCC 3 LX DATA S I Data from slave unit 4 LX DATA M O Data to slave unit 5 LX CLK I/O LX-BUS clock 6 WIRED REMO I External display remoter controller 7 LX MUTE I Mute request from slave unit H : MUTE ON, L : MUTE OFF 8AUD SDA O E-VOL data SPI communication 9AUD SEL O E-VOL control SPI communication 10 AUD SCL O E-VOL clock SPI communication 10 DSP_SCL O DSP clock output terminal SPI communication 11 DAC RST O DAC reset L : DAC RESET 11 NC O Not used L-output for models without DSP 12 NC - Not used 13 BYTE - GND

KDC-W8534/W8534Y KDC-X790

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Function Processing Operation

14 CNVSS 15 XCIN I Clock 32,768kHz 16 XCOUT I Clock 32,768kHz 17 RESET I Reset 18 XOUT - Clock 12MHz 19 VSS - GND 20 XIN - Clock 12MHz 21 VCC1 22 NMI I Not used 23 PANEL DET I Panel detection H : No panel, L : Panel exists 24 RDS CLK I RDS decoder clock 24 NC O Not used L-output for models without RDS/RBDS 25 LX REQ S I Communication request from slave unit 26 PON AM I/O AM power supply control AM in operation : H, AM not in operation : HI-Z 27 LX REQ M O Communication request to slave unit 28 TUN IFC OUT I Front-end IFC out H : Station exists, L : No station 29 NC O Not used 30 RDS AFS M I/O Time constant switching when noise detected Refer to Truth Value Table r 30 NC O Not used L-output for models without RDS/RBDS 31 RDS QUAL I RDS decoder QUAL 31 NC O Not used L-output for models without RDS/RBDS 32 RDS DATA I RDS decoder DATA 32 NC O Not used L-output for models without RDS/RBDS 33 PWIC BEEP O Beep 34 TUN SCL I/O Front-end I2C clock 35 TUN SDA I/O Front-end I2C data 36 SYS DATA O Inside-panel communication data MAX 500kbps 37 VCC1 38 PAN DATA I Inside-panel communication data MAX 500kbps 39 VSS 40 SYS REQ O Communication request from system µ-com 41 PAN REQ I Communication request from panel 42 SDA I/O I2C data input output 43 SCL I/O I2C clock input output

44 PON PANEL I/O Panel 5V control

45 DSI I/O DSI control 46~49 NC - Not used. 50 PM MOT1 O Panel motor control 1 Refer to Truth Value Table w 51 PM MOT2 O Panel motor control 2 Refer to Truth Value Table w 52 EPM I Flash EPM 53 PM OPEN I Panel full open detection Refer to Truth Value Table e 54~56 NC - Not used

ON : H (Momentary power down/Panel detached) 11 Minutes after ACC OFF : Hi-Z

KDC-W8534/W8534Y KDC-X790

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Function Processing Operation

57 P5V DIS I/O Panel 5V discharge control H : Discharge, Other : Hi-Z 58 PM CLOSE I Panel mechanism close detection Refer to Truth Value Table e 59 ROMCOR DET I E2PROM write request H : Write 60 PM DET I Panel mechanism detection H : Function check in progress 61 SC CON O 62 NC - Not used

63 TUN TYPE1 I Destination setting 1

64 TUN TYPE2 I Destination setting 2

65,66 NC - Not used 67 67 NC O Not used when MD Output L fixed when MD 68 CD LOS SW I CD loading detection 68 69 CD MUTE R I CD mute (Rch) request L : Rch mute request 69 NC O Not used when MD Output L fixed when MD 70 CD MUTE L I CD mute (Lch) request L : Lch mute request 70 MD_MUTE I MD MUTE request terminal L : MUTE request 71 CD MRST O CD mechanism microcomputer reset L : Reset, H : Normal 71 MD_MRST O MD mechanism µ-com RST terminal H : Normal, L : RESET

72 CD MSTOP O CD mechanism microcomputer stop

72 MD_MSTOP O MD mechanism µ-com stop terminal

73 CD_DISC8_SW I CD disc detection terminal (8cm) (J only) 73 NC - Not used 74 74 75 CD LOEJ I/O CD motor control Refer to Truth Value Table q 75 MD_LOEJ I/O MD motor control terminal Refer to Truth Value Table q 76 CD MOTOR O CD motor control Refer to Truth Value Table q 76 MD_MOTOR O MD motor control terminal Refer to Truth Value Table q 77 PON ILLUMI I/O Key illumination power supply control ON : H, OFF : Hi-Z 78 PON CD I/O CD/WMA power supply control At time of CD source: H, Other than CD : Hi-Z

78 PON_MD I/O MD servo power supply control terminal

79 PON O Power supply control POWER ON : H, POWER OFF : L 80 PON FL+B O 81 PON FDC I/O 82 F SEL1 O SW-Reg frequency switching 83 F SEL2 O SW-Reg frequency switching 84 DIAG I/O P-CON excess current surveillance

CD DISC12 SW

MD_LOS_EJE_SW

CD LOE LIM SW MD_LOE_LIM_SW

Inside-panel communication (Chip enable when flash)

I 12cm CD detection

I MD DISC position detection terminal

I CD detection (Chucking SW) H : Loading complete, L : No disc I MD detection terminal (chucking SW) H : Loading completed, L : No disc

Fruorescent indicator tube bias power supply control Fruorescent indicator tube filament power supply control

POWER OFF, ACC OFF : L

TUN TYPE1 : L, TUN TYPE2 : L Refer to Truth Value Table t TUN TYPE1 : L, TUN TYPE2 : L Refer to Truth Value Table t

L : Mechanism microcomputer stop, H : Mechanism microcomputer in operation H : Mechanism µ-com in operation, L : Mechanism µ-com stop

H : When MD mechanism in operation, Hi-Z : When other than MD source

POWER ON : H, POWER OFF or display black out : L POWER ON : L, POWER OFF or display black out : Hi-Z

KDC-W8534/W8534Y KDC-X790

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Function Processing Operation

85 VCC2 86 EXT AMP CON I/O External amplifier control 86 NC O Not used Fixed to L-output for models without EXT_AMP 87 VSS 88~91 92 NC - Not used 93 93 NC O Not used with DISP OUT Output L fixed 94 94 NC O Not used with DISP OUT Output L fixed 95 OEM DISP CE I/O External display control request External display 95 NC O Not used with DISP OUT Output L fixed 96 NC - Not used. 97 P CON O External amplifier control POWER ON : H, POWER OFF or STANDBY : L 98 NC - Not used. 99 ANT CONT O Power antenna control TUNER ON : H 100 ILLUMI DET I Dimmer illumination detection L : ON, H : OFF 101 BU DET I Momentary power down detection BU : L, No BU or momentary power down : H 102 ACC DET I ACC power supply detection ACC ON : L, ACC OFF : H

103 (PWIC SVR) O SVR discharge circuit

104 PWIC MUTE O Power IC mute

105 PWIC STBY O Power IC standby control POWER ON : H, POWER OFF : L 106 LX CON O Start up request to slave unit H : SLAVE UNIT ON, L : SLAVE UNIT OFF

107 MUTE PRE R O Rch pre-out mute

107 NC O Not used when MD Output L fixed

108

108 MUTE_PRE O PRE_OUT MUTE (MD) L : When at momentary power down 109 MUTE 0 O E-VOL front mute ON : L, OFF : H 110 MUTE 1 O E-VOL rear mute ON : L, OFF : H 111 MUTE 2 O E-VOL sub mute ON : L, OFF : H 112 NC O Not used 113 DSP MUTE I/O DSP mute ON : L, OFF : Hi-Z 113 NC O Not used when without DSP Output L fixed 114 MUTE C O E-VOL AFS mute ON : L, OFF : H 114 NC O Not used (in other than when the destination is E) Output L fixed 115 DSP INIT RST O DSP initial reset L : Reset, H : Reset release 115 NC O Not used when without DSP Output L fixed 116 DSP S RST O DSP system reset L : Reset, H : Reset release 116 NC O Not used when without DSP Output L fixed

TYPE 1~TYPE4

OEM DISP DATA

OEM DISP CLK

CD MUTE PRE L

I Destination switching Refer to Truth Value Table y

I/O External display DATA External display

I/O External display CLK External display

H : 5 seconds after POWER OFF and momentary power down, Then : L L : When STANDBY source or momentary power down, L : When TEL MUTE

L : When “MUTE PRE R” is “L” or at momentary power down, H : Only when 2-zone

O Lch pre-out mute

L : When “MUTE PRE L” is “L” or at momentary power down, H : Only when 2-zone

KDC-W8534/W8534Y KDC-X790

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Function Processing Operation

117 DSP RQ O Request to DSP L : Request 117 NC O Not used when without DSP Output L fixed 118 DSP CS O DSP chip select L : Select 118 NC O Not used when without DSP Output L fixed 119 NC (GTEST) O Not used

120 LINE MUTE I Line mute detect

121 MD DET I For a terminal of MD receiver 121 NC O Not used when CD Output L fixed 122 PWIC DC DET I DC offset error detect 123 LX RST O Hard reset to slave unit H : Reset, L : Normal 124 G Y OUT I Analog Y gravity detect 124 NC O Not used when without G sensor Output L fixed 125 G X OUT I Analog X gravity detect 125 NC O Not used when without G sensor Output L fixed 126 RDS NOISE I FM noise detection 127 AVSS 128 TUN SMETER I S-meter input

TEL MUTE : 1V or less, NAVI MUTE : 1V or less, 2.5V or more

Truth Value T able

q CD MOTOR / CD LOEJ

CD MOTOR Standby L L Eject H H Load H L Brake H Hi-Z

w PANEL MOTOR

OPEN CLOSE STOP WAIT PM MOT1 L H H L PM MOT2 H L H L

e PANEL MECHA

FULL OPEN FULL CLOSE OTHER PM OPEN H L L PM CLOSE H L H

CD LOEJ

r RDS AFS

RDS AFS M RDS AFS L AFS LOW L L AFS MID L Hi-Z Sound output with AF search AFS HIGH Hi-Z Hi-Z Normal reception

t TUN TYPE setting

TYPE1 TYPE2 Kenwood brand model L L Setting for OEM1 L H Setting for OEM2 H L Setting for OEM3 H H

y1 TYPE setting

Destination DSP TYPE4 TYPE3 TYPE2 TYPE1 KDC-X790 0110 KDC-MP732 0101 KDC-MP8533 0111 KDC-W8534 K 1000 KDC-W8534Y K 1001

No sound output with AF search

Condition

KDC-W8534/W8534Y KDC-X790

MICROCOMPUTER’S TERMINAL DESCRIPTION

● PANEL MICROCOMPUTER : 703134GJ013-A (X16 : IC4)

Pin No. Pin Name I/O Function Processing Operation

1~7 D14~D8 I/O Data input/output 8 3.3VDD - 3.3V 9 VSS - Connect to GND 10~17 D7~D0 I/O Data input/output

18 FLGCP1 O FL harmony control

19 NC - Not used 20 SYS REQ I System µ-com communication request H : Data communication 21 SC CON I 22 FL BK O Fruorescent indicator blackout control H : Fruorescent indicator turned on, L : turned off 23 2.5VDD - 2.5V 24 VSS - Connect to GND 25 NC - Not used 26,27 KS1, KS2 I/O Key scan L : Output, Hi-Z : Switching 28,29 TD0, TD1 - Not used 30,31 KS3, KS4 I/O Key scan L : Output, Hi-Z : Switching 32 TRST I Pull down 33 ROTARY CCW I Rotary A 1-pulse/2-click, 15-pulse/360° 34 ROTARY CW I Rotary B 1-pulse/2-click, 15-pulse/360° 35,36 TMS, TCM - Not used 37 3.3VDD - 3.3V 38 EVSS - Connect to GND 39 KS5 I/O Key scan L : Output, Hi-Z : Switching 40~42 KR1, KR2, KR3 I Key return

43 FLGCP2 O Fruorescent indicator harmony control

44 PAN REQ O Panel communication request H : Data communication in progress 45 SYS DATA I Data reception from system µ-com UART communication 500kbps 46 PAN DATA O Data transmission from panel UART communication 500kbps 47 FL CLK O 48 KR4 INT I Key return Interruption possible 49 FL DATA1 O Fruorescent indicator serial control data 50 CLK IN3 I Serial synchronization clock Synchronized to Fruorescent indicator CLK 51 FL EL O Fruorescent indicator skip shift control H or Hi-Z : Odd number skip, L : Even number skip 52 FL DATA2 O Fruorescent indicator serial control data 53 CLK IN2 I Serial synchronization clock Synchronized to Fruorescent indicator CLK 54 FL LAT O Fruorescent indicator latch control 55 FL DATA3 O Fruorescent indicator serial control data 56 3.3VDD - 3.3V 57,58 X2,X1 I Clock 6.6MHz 59 CVSS - Connect to GND 60 CKSEL - Connect to GND

System µ-com communication/Panel operation control

Fruorescent indicator serial communication reference clock

Lighting timing (brightness harmony) is controlled with pulse interval. GCP=FLGCP1+FLGCP2

H : Panel operation

Lighting timing (brightness harmony) is controlled with pulse interval. GCP=FLGCP1+FLGCP2

Reference clock 4.125MHz

KDC-W8534/W8534Y KDC-X790

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Function Processing Operation

61 PSEL - Connect to VDD 62 2.5VDD - 2.5V 63 VSS - Connect to GND 64 MODE0 - Connect to GND 65 MODE1 - Pull down 66 PAN RST I Input from reset IC 67 AVDD1 I D/A conversion reference voltage Connect to D3.3V 68,69 NC - Pull down 70,71 AVSS1,AVSS0 - D/A conversion reference GND 72 AVDD0 - A/D conversion reference voltage Connect to D3.3V 73 WAVE IN I Voice input AD read 74 F01 I BPF (63Hz) AD read 75 F02 I BPF (150Hz) AD read 76 F03 I BPF (330Hz) AD read 77 F04 I BPF (1kHz) AD read 78 F05 I BPF (3.3kHz) AD read 79 F06 I BPF (10kHz) AD read 80 NC - Pull down 81 2.5VDD - 2.5V 82 VSS - Connect to GND 83 NC - Not used 84 TYPE I 85 86 REMO I Remote controller signal Detection with pulse width 87 PON FL+B O Fruorescent indicator bias power supply switch H : ON, L : OFF 88 PON FLVDD I/O

89 PON 5V I/O 5V power supply switch

90~93 NC - Not used 94 WE I/O Memory data write permission L : Write, H : Wait SW3.3V start up : Hi-Z 95 OE I/O Memory data transmission permission 96,97 NC - Not used 98 3.3VDD - 3.3V 99 VSS - Connect to GND 100 FROMCHK - Not used 101 CE I/O Memory operation permission L : Operation, H : Wait SW3.3V start up : Hi-Z 102~104 105 ROMCOR SCL - For ROM correction 106 ROMCOR SDA - For ROM correction 107 NC (SEL E2P) - Not used 108 109 PON TRI RED I/O Triangle red light ON switch H : Light ON, Hi-Z : Light OFF 110 PON BLUE I/O Blue sub-illumination light ON switch H : Light ON, Hi-Z : Light OFF

NC (VREFCON)

NC - Not used

PON TRI GREEN

Whether there is customizing or not designation setting

O Not used

Fruorescent indicator logic section power supply switch

I/O Triangle green light ON switch

H : Flash ROM (This model), L : Mask ROM (Other model)

H : ON, Hi-Z : OFF Remote controller IC / Space analyzer IC power supply H : ON, Hi-Z : OFF

L : Data transmission, H : Wait SW3.3V start up : Hi-Z

H : Light ON, Hi-Z : Light OFF, When blackout : Light ON

KDC-W8534/W8534Y KDC-X790

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Function Processing Operation

111 SA RST O Spectrum analyzer IC reset H : Reset (1.8V or higher), L : Normal 112 3.3VDD - 3.3V 113 EVSS - Connect to GND 114 PON GREEN I/O Green key illumination light ON switch H : Light ON, Hi-Z : Light OFF 115 PON RED I/O Red illumination light ON switch H : Light ON, Hi-Z : Light OFF 116 PON SW3V I/O Rotary encoder power supply L : ON, Hi-Z : OFF 117 NC O Not used 118~123 124 2.5VDD - 2.5V 125 VSS - Connect to GND 126~133 134 3.3VDD - 3.3V 135 EVSS - Connect to GND 136~142 143 NC - Not used 144 D15 I/O Data input/output

A21~A16 O Address output

A15~A8 O Address output

A7~A1 O Address output

● MECHANISM MICROCOMPUTER : 91CU27UG5UR8 (X32-573 : IC1)

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

1 VREFL I ADC reference power supply input terminal (L) GND 2 DMUTE O Driver MUTE L : STOP, H : MUTE OFF 3 CSRST O (Decoder) Resetting control L : RESET, H : NORMAL 4NCONot used. Open output L-fixed 5 LZM I 0bit MUTE detection (Lch) L : MUTE OFF, H : MUTE ON 6 RZM I 0bit MUTE detection (Rch) L : MUTE OFF, H : MUTE ON 7 BREQ I (Decoder) BREQ signal input 8 DSPINT I (DSP) interruption signal input H : Interruption 9 SREQ O (Decoder) SREQ signal output 10 NC O Not used. Open output L-fixed 11 S_DATA O (Decoder) Data output for serial data 12 B_DATA I (Decoder) Data input for serial data 13 CLK O (Decoder) Clock output for serial data 14 DSPTXD1 O (DSP) Data output for serial data 15 DSPRXD1 I (DSP) Data input for serial data 16 DSPSCLK1 O (DSP) Clock output for serial data 17 AM0 - ROM mode selection terminal H : NORMAL, L : External ROM mode 18 DVCC - BU3.3V 19 X2 O Oscillator connection 26.88MHz 20 DVSS - GND 21 X1 I Oscillator connection 26.88MHz 22 AM1 - H-fixed 23 RESET I Reset detection L : RESET H : NORMAL

KDC-W8534/W8534Y KDC-X790

MICROCOMPUTER’S TERMINAL DESCRIPTION

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

24,25 NC O Not used. Open output L-fixed 26 NMI I Non-maskable interruption Not used. 27 ALE O Not used. Open output prohibited (Hi-Z) 28 DSPSTB O (DSP) Data strobe signal output 29 DSPA0 O 30 DSPRST O (DSP) Reset control 31 NC O Not used. Open output L-fixed 32 NC O Not used. Open output L-fixed 33 SEARCH O Search condition output H : In search, L : Normal (x2 : L-fixed) 34 LOE/LIM_SW I PU LIM detection SW H : LIM 35~39 NC O Not used. Open output L-fixed 40 POND3.3 O D3.3V POWER ON control terminal H : POWER ON 41 NC O Not used. Open output L-fixed 42 PONCS O CS7410-series power supply control terminal H:POWER ON 43~47 NC O Not used. Open output L-fixed 48 DATA_MUTE O Data output status L : DATA output MUTE 49 NC O Not used. Open output L-fixed 50 NC (BOOT) O Mask : Not used. (output H) / Flash (write terminal) (Flash) L : WRITE, H : NORMAL 51~53 NC O Not used. Open output L-fixed 54 MUTE L O Lch audio MUTE control L : MUTE ON 55 MUTE R O Rch audio MUTE control L : MUTE ON 56 NC O Not used. Open output L-fixed 57 SDA I/O (System µ-com) I2C data 58 SCL I/O (System µ-com) I2C clock 59 MSTOP I Standby restart interruption L:STOP H:STOP release 60~62 AN0~AN2 I TEST0~TEST2 PULL DOWN 63 UNQID I Unique ID write permission L : Normal, H : During service write 64 AVCC - ADC power supply terminal BU3.3V

(DSP) Command parameter identification signal output

H : Transmitting parameter, L : Transmitting command

TEST MODE

KDC-W8534/W8534Y KDC-X790

●How to enter the test mode

In order to enter the test mode, reset the unit while simultaneously pressing down [1] and [3] keys. (While “----” is being displayed, power can be ON for 30 minutes.)

●How to clear the test mode

The test mode is cleared in case of any of the following e v ents: resetting, momentary power down, Acc OFF, P ower OFF and removal of the panel.

●Initial conditions of the test mode

• Source is STANDBY.

• Displays lights are all turned on.

• The volume is at –10dB (The display is 30).

• Loudness (LOUD) is OFF.

• CRSC is OFF, regardless of whether there are switching functions or not.

• SYSTEM Q is NATURAL (=FLAT).

• BEEP will sound anytime with a less than 1 second push.

• Auxiliary (AUX) is ON.

• DISPLAY TYPE is TYPE D.

• The Multi-function Key System are source dependent systems. (TUNER → Preset, CD / CD-CH → Scan, etc.)

• Display of TUNER sources will be as follows : European Models : Upper Display=PS/frequency, Middle Display=spectrum analyzer, Lower Display=multi-function Other Models : Upper Displa y=SNPS, Middle Display =spectrum analyzer, Lower Display=multi-function

• CD source display will be as follows : All Models : Upper Displa y=P-TIME, Middle Displa y= spectrum analyzer, Lower Display=multi-function

●RDS automatic measurement

Conventionally, the PS display has been visually checked on the production line. This will be replaced b y a ne w processing. The PS data will be received and the PS contents is to be verified as “RDS_TEST”. When this is verified, the P-CON terminal is forced to go OFF. (In this case, “ _ ” means blank.)

→ This will be a dedicated test mode processing.

On the P-CON, when power is turned off once and, then, turned on again, (Power OFF → ON) the unit will be restarted.

●Special display when set to TUNER

When in TUNER mode , if any of the f ollowing displays appear, there is an abnormality with the front end.

• “TNE2P_NG” : Front-end E2PROM values are still default (not determined).

•“TNCON_NG” : In this condition, the communication with the front-end is not possible.

●Forced switching of K3I

In TUNER FM mode, each time [6] key is pressed, the functions move in the following cycle : AUTO → forced WIDE → forced MIDDLE → force NARROW → AUTO The initial condition is AUTO and the displays below will appear.

• AUTO : FMA

• Forced MIDDLE : FMM

• Forced WIDE : FMW

• Forced NARROW : FMN

●CD receiver test mode specifications

•Jumps are made to the following tracks by pressing the [

] key.

∗ KDC-W8534/W8534Y

No. 9 → No. 15 → No. 10 → No. 11 → No. 12 → No. 13 → No. 22 → No. 14 → No. 9 → No. 11 → No. 9 (Returns to the beginning)

∗ KDC-X790/MP732/MP8533

No.9 → No.15 → No.10 → No.11 → No.12 → No.13 →

No.22 → No.14 → No.9 (Returns to the beginning) It must be noted, however, that when paying MP3 / WMA / AAC disk, which contain 8 files or less, the first track and the following trac ks are played in order.

• When [

• When a CD is used as a source, by pressing [1] key f or less than 1 second, a jump to the Track No. 28 is made.

• When a CD is used as a source, by pressing [2] key f or less than 1 second, a jump to the Track No. 14 is made.

• When a CD is used as a source, by pressing [3] key f or less than 1 second, a display of CD mechanism model name and its version is made. When the pressing of [3] key for less than 1 second is made for the second time, the normal display is resumed. (Time code display)

• While in CD source, use [5] key to switch between DSP Through and DSP Bypass. (In models with DSP)

The multi-function key dicates Bypass.

• When a CD is used as a source, by pressing [6] key f or less than 1 second, a jump to the Track No. 15 is made. At the same time, the volume value is set to 27 (5V PRE).

] key is pressed, it goes down by 1 track.

indicates Through, and 5 in-

KDC-W8534/W8534Y KDC-X790

TEST MODE

●Audio adjust mode Model with DSP (KDC-W8534/W8534Y)

•By pressing [AUD] key for less than 1 second, the Audio Adjust mode is entered.

• As with the [AUD] key, [∗] key on the remote controller can be used to enter the Audio Adjust mode.

• As for the adjustment items, items for both the AUDIO FUNCTION MODE and SETUP MODE are included.

• By pressing [AUD] or [FM] key briefly, switch the item to be adjusted in the following order. (only in forward rotation)

• The initial item will be Fader and the next is Balance. (After Balance, it will be arbitrary.)

• With the remote controller, continuous forwarding is prohibited.

• Using the V OL knob and [ ] / [ ] key, the Fader is to be adjusted to the following 3 levels : R15 ↔ 0 ↔ F15 (The default value : 0)

• Using the VOL knob and [ be adjusted to the following 3 le v els : L15 ↔ 0 ↔ R15 (The default value : 0)

• Using the VOL knob and [ set is to be adjusted to the following 2 le vels : –8 ↔ 0 (The default value : 0)

] / [ ] key , the Balance is to

] / [ ] key, the Volume Off-

• Using the VOL knob and [ Level can be adjusted in 3 steps : –15 ↔ 0 ↔ +15 (The initial value is 0)

• Using the VOL knob and [ set can be adjusted in 2 steps : –8 ↔ 0 (The initial value is

• Using the VOL knob and [ Rear can be adjusted in 2 steps : Through ↔ 180Hz (or 220Hz) (The initial value is Through)

• Using the VOL knob and [ Woofer can be adjusted in 2 steps : 60Hz (or 50Hz) ↔ Through (The initial value is Through)

• Using the VOL knob and [ set can be adjusted in 2 steps : –8 ↔ 0 (The initial value is

• Using the VOL knob and [ ON/OFF can be adjusted in 2 steps : OFF ↔ ON (The initial value is OFF)

• Using the V OL knob and [ can be adjusted in 2 steps : OFF ↔ ON (The initial value is OFF)

• Bass f / Bass Q / Bass EXT / Middle f / Middle Q / Treble f do no appear in audio adjustments.

] / [ ] key, the Sub Woofer

] / [ ] key, the Volume Off-

] / [ ] key, the HPF Front /

] / [ ] key, the LPF Sub

] / [ ] key, the Volume Off-

] / [ ] key, the Loudness

] / [ ] key, 2-Zone ON/OFF

Model with no DSP (KDC-X790/MP732/MP8533)

• By pressing [AUD] key for less than 1 second, the audio adjustment mode can be entered.

• Using the remote controller [∗] key and [AUD] key, the audio adjustment mode can be entered.

•Adjustment items of both the AUDIO FUNCTION MODE and SETUP MODE are included.

• By pressing [AUD] or [FM] key briefly, switch the item to be adjusted in the following order. (only in forward rotation)

• The initial item will be Fader , which is followed by : Balance

→ Bass Le v el → Middle Level → Treble Le v el → HPF Front → HPF Rear → LPF Sub Woofer (After this, it will be arbi-

trary)

• With the remote controller, continuous forwarding is prohibited.

• Using the V OL knob and [ ] / [ ] key , the Fader can be adjusted in 3 steps : R15 ↔ 0 ↔ F15 (The initial value is 0)

• Using the VOL knob and [ ] / [ ] key, the Balance can be adjusted in 3 steps : L15 ↔ 0 ↔ R15 (The initial value is

• Using the V OL knob and [ / Treble Level can be adjusted in 3 steps : –8 ↔ 0 ↔ +8 (The initial value is 0)

] / [ ] key , the Bass / Middle

●MENU items

• Push the [ ] (NEXT) key for at least 1 second to enter the MENU.

• The [DNPP/SBF] and [DIRECT] keys on the remote controller can also be used to enter the MENU.

• With the remote controller, continuous forwarding is prohibited.

• When a CD is used as a source, the default item will be the ACD F/W Version. (DXM-6800 mechanism equipped model : KDC-W8534/ W8534Y, KDC-X790)

●2-ZONE (Dual Zone) items

• When using sources other than the STANDBY source, using a short-press on [AUTO] or [TI] key, 2-ZONE ON/OFF is achieved.

●Backup current measurement

When reset in Acc OFF (Back Up ON) condition, MUTE terminal goes off after 2 seconds, instead of 15 seconds. (During this time, the CD mechanism does not function.)

TEST MODE

KDC-W8534/W8534Y KDC-X790

●OPEL communication items

During the test mode, OPEL communication line outputs the following (At every 500msec, the output condition of the communication line will be switched.)

DATA

CLK

500msec

●G sensor display items

When source is STANDBY, by short-pressing [ATT] key, the display is switched to analogy meter display, in which vertical G and horizontal G are displayed.

●Special display when all lights are on

When all lights are on with the STANDBY source, the following displays are made when the ke ys shown below are pressed.

[1] key Version display

(Display) C0507WE__SYS1. 23 (Display) STYPE : x__PAN1.11 (Display) PTYPE : x__MEM3.21 ∗STYPE indicates system µ-com destination, and PTYPE

indicates panel µ-com destination, and show real-time condition of the destination terminal (“x” is displayed in hexadecimals.)

[2] key Serial number display (8 digits)

(Display) SNo_XXXXXXXX

[3] key

Key pressed briefly : Power ON time is displayed. During Power On time display, by pressing for at least 2 seconds, the Power ON time is cleared. (Display) PonTim_0Hxx_ (00~50 is displayed for “xx”.

When less than 1 hour, displayed by increments of 10 minutes.)

xxxxx (00001~10922 is displayed for

“xxxxxx”.) MAX 10922 (times)

[4] key

[5] key

[6] key

(*1) : 1 count is made when the panel opens to full or when a disc is loaded.

Key pressed briefly During CD operation time display, by pressing for at least 2 seconds, CD operation time is cleared. (Display) CDTim_0Hxx_ (00~50 is displayed for “xx”.

Key pressed briefly During CD EJECT number display, by pressing for at least 2 seconds, CD EJECT number display is cleared. (Display) EjeCnt_xxxxx MAX 65535 (times) Key pressed briefly displayed. (*1) During PANEL Open/close number display, by pressing for at least 2 seconds, PANEL Open/close numbers is cleared. (Display) PnCnt_xxxxx MAX 65535 (times)

[FM] ROM correction version display

key (Display) SYS_ROM_R123

(Display) PAN_ROM_R123 When E2PROM is not installed : ROM_ERR_ When un-written : ROM_R – – – When data is incompatible : ROM_R ∗ ∗ ∗

[ ]AUDIO data default value setting

key (Display) AUDIO_INIT

[ ]

Key pressed briefly : Forced Power OFF data displayed.

key While the forced power OFF data is displayed, press and

hold for 2 seconds to clear the data. (Display)POFF_ - - - (No Forced Power OFF)

SEC (Forced Power OFF because of

PNL (Forced Power OFF because of

[ ]Key pressed briefly : CD information display mode ON/OFF

key While in CD information display mode, press and hold for

2 seconds to clear all CD information. ∗ Please refer to the table below.

: CD operation time is displayed.

When less than 1 hour, displayed by increments of 10 minutes.)

xxxxx (00001~10922 is displayed for

“xxxxxx”.) MAX 10922 (times)

: CD EJECT number is displayed.

: PANEL Open/close number is

missing Security Code)

system µ-com panel communication error)

KDC-W8534/W8534Y KDC-X790

TEST MODE

Displays I2C communication status and CD mechanism error log (Display) I2C_●●____________ (Display) ERR_1-▲▲, 2-▲▲, 3-▲▲ “OK” or “NG” is displayed for “●●”. / “--” or an error code is displayed for “▲▲”. Displays CD loading error data. (Display) Load_Error____ (Display) __ (1) xx__ (2) xx (number of times is displayed

for “xx”)

MAX 99 (times) Disk detection switch ON/OFF is monitored, and when the loading operation is not completed within the specified time length, or when E-99 mechanism error occurred, record which SW signal had an error. ∗Refer to the note at the end of [CD LOAD error detection].

[AM] Displays CD ejection error data.

key (Display) Eject_Error___

↑ (Display) __ (1) xx__ (2) xx

(Display) __ (3) xx__ (4) xx (number of times is displayed

for “xx”)

MAX 99 (times) Disk detection SW ON/OFF is monitored, and when the ejection operation is not completed within the specified time length, or when E-99 mechanism error occurred,

↓ record which SW signal had an error.

[FM] ∗Refer to [CD EJECT error detection]’s note.

key Displays CD time code count error data (missing count).

(Display) Count_Lose (Display) __CDDA_ : xx (Display) __CDROM : xx (number of times is displayed

for “xx”)

MAX 99 (times) Monitor time code continuity. Record the number of times when discontinuity occurred as error data. Record the data of compressed audio and CD-DA played separately. Displays CD time code count error data (count not updated). (Display) Count_Stay (Display) __CDDA_ : xx (Display) __CDROM : xx (number of times is displayed

for “xx”)

MAX 99 (times) When the time code is not renewed for 2 or more seconds, record the number of times occurred as error data (skipped sound).

●Initializing AUDIO-related value setting

During STANDBY sourcing, by pressing [ ] key for less than 1 second, AUDIO setting values are retur ned to the default values.

●Flash ROM check (for graphic data)

1. In order to prevent the Flash ROM (4M) equipped models to be installed with the Mask ROM (2M) panel, and to prevent the Mask ROM (2M) equipped models to be installed with the Flash ROM (4M) panels, with the STANDBY sources during the test mode, the following display will be made according to the system µ-com and panel combination.

•

Flash ROM (4M) equipped model and Flash R OM (4M) panel

All lights turned on – – – OK!

•

Mask ROM (2M) equipped model and Mask R OM (2M) panel

All lights turned on – – – OK!

•

Flash ROM (4M) equipped model and Mask R OM (2M) panel

“M4P2” – – – NG!

•

Mask ROM (2M) equipped model and Flash R OM (4M) panel

“M2P4” – – – NG!

∗Flash ROM (4M) : KDC-W8534/W8534Y,KDC-X790 (X16

IC1) Mask ROM (2M) : KDC-MP732,KDC-MP8533 (X16 IC1)

2. When entering the test mode, the manufacture code of the Flash ROM (4M) is read and when it is normal, FROMCHK of the 100th terminal (Panel µ-com) repeats Hi → Low → Hi · · ·. If the reading is abnormal, “Low” is output. If the manufacture code is normal, by pressing [AM] ke y f or less than 1 second, the connection checks on all terminal is started. If the connections are normal, the FROMCHK terminal stops the Hi → Low → Hi · · · repeating and outputs “Hi”. If the reading is abnormal, “Low” is output.

3. If the [AM] key is pressed for 2 seconds while all lights are on, Flash ROM (4M) data is initialized.

While the deletion is executed, “Data_Erase....” is displa y ed.

Note : Do not touch any key white this is in progress. When erasing is complete, “Erase_OK!!” is displayed. If “Erase_NG!!!!!!” is displayed, it was not possible to erase the data on the Flash ROM (4M). In this case, pressing [AM] key for at least 1 second again. If it is the same, then there is an abnormality with the Flash ROM.

TEST MODE

KDC-W8534/W8534Y KDC-X790

●Other

• At Power ON, “CODE_OFF”, “CODE_ON” displays will not be made.

• When sourcing STANDBY, by pressing [AUTO] or [TI] key for less than 1 second, GREEN/RED of the ke y illumination is switched. When doing this, the triangle illumination GREEN/RED is switched along with the key illumination.

• When staring up in the test mode, LINE MUTE prohibition time is set to 1 second instead of 10 seconds.

• While in the test mode, even when a DC offset error is detected, the detection information will not be written to the E2PROM.

• While in the test mode, ev en after an elapse of pre-set time, the backup memory items will not be written to the E2PROM.

• Information Clear mode for Test Mode, backup/installer memory, and CD mechanism error log. In the DC offset error detection information clear mode, DEMO mode operation will not be conducted. Also, in the above mode , the menu of the STANDBY source will not display DEMO ON/OFF switching items.

• While in the test mode, and at the same time, PM_DET of the 60th terminal (System µ-com) is H, the following will apply to the EJECT key, regardless of whether a disc is in the unit or not. Panel full OPEN/CLOSE is conducted with a push for less than 1 second. (Protection time : 3 seconds) As far as this item is concerned, eject will be achieved by for at least 1 second push on the EJECT key.

●Clearing backup/installer memory and CD mecha-

nism information, and service information. Clearing E2PROM data.

Backup/installer memory X34-IC104 (E2PROM) “A UDIO_E2P” CD mechanism information and service information: TUNER F/E (E2PROM) “CD_E2P___”

1. While pressing and holding the [ [ATT] key, reset-start to start backup/installer, memory data, and CD mechanism and service information initialization. (While “----” is being displayed, power can be ON for 30 minutes.) [CD mechanism information]

•Displays I2C communication condition

• Displays CD mechanism error log

• Displays CD loading error data.

• Displays CD ejection error data.

•Displays CD time code error count data (missing count).

•Displays CD time code error count data (count not updated).

] (NEXT) key and the

[Service Information]

•Displays power ON time is displayed.

•Displays CD operation time.

• Displays number of CD EJECT times.

• Displays number of times panel was opened/closed.

• Displays forced Power OFF data.

2. After the initialization process is completed, the following is displayed. When the initialization is completed normally , the following is displayed.

C D _ E 2 P _ _ _ : A U D I O _ E 2 P :

When there was an error (or errors) and the initialization is not completed normally, the following is displayed. When backup/installer memory initialization is NG.

C D _ E 2 P _ _ _ : A U D I O _ E 2 P :

When CD mechanism information / service information initialization NG.

C D _ E 2 P _ _ _ : A U D I O _ E 2 P :

When all initialization NG.

C D _ E 2 P _ _ _ : A U D I O _ E 2 P :

Restore the NGs and initialize again.

3. While in this mode, even after an elapse of a pre-set time, no backup memory items will be written to the E2PROM.

4. This mode is released by resetting. (What was on the last screen will not be retained.)

●Clearing DC offset error detection information

(E2PROM (F/E) data clear)

1. While simultaneously pressing down on [3] and [6] keys, reset the unit to enter the DC offset error display mode. (While “----” is being displayed, power can be ON for 30 minutes.)

2. During ST ANDBY sourcing, the current DC offset error conditions will be displayed. When error detected : “DC_ERR” When error not detected : “DC_OK”

3. While the error conditions are being displayed, press [AUTO]

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