Kenwood KDC-C717Y Service Manual

COMPACT DISC AUTO CHANGER KDC-C717

NEW ANTI VIBRATION MECHANISM DISC NAME PRESET

TEXT

DISC

COMPACT

DIGITAL AUDIO

CD-R/RW

COMPACT DISC AUTO CHANGER KDC-C517FM

NEW ANTI VIBRATION MECHANISM

DISC

COMPACT

DIGITAL AUDIO

CD-R/RW

1BIT 4D/A CONVER

COMPACT

DIGITALAUDIO

PWR

TRACK DISC

RDM

REP

Illustration is KDC-C517FM.

Illustration is KDC-C717/Y.

SCREW SET (N99-1645-15) : except M type

SCREW SET (N99-1628-15) : M type only

MOUNTING HARDWARE ASSY x 2 (J21-9588-04) : M type only

HOLDER ASSY (J19-5074-02)

BLIND PLATE (F19-1303-04)

TRAY (J99-0612-01)

ADHESIVE TAPE x 2 (J69-0506-04) : M type only

CORD WITH PLUG (E30-4291-05 or E30-4954-05)

BRACKET (R) (J19-5019-03)

BRACKET (L) (J19-5018-03)

REMOTO CONTROLLER ASSY (A70-0896-05) : KDC-C517FM

BATTERY (SIZE:AAA) Not supplied as service parts

DISPLAY UNIT ASSY (T95-0247-08) : KDC-C517FM

CASE (A01-2723-08) : KDC-C517FM

HOLDER ASSY (B07-2138-08) : KDC-C517FM

MAGICTAPE ASSY (W01-0763-08) : KDC-C517FM

2001-1 PRINTED IN JAPAN

B51-7731-00 (N) 3394

CD AUTO CHANGER

KDC-C517FM KDC-C717/Y

SERVICE MANUAL

The MECHANISM OPERATION is the same as model KDC-C710. Please refer to the service manual of model KDC-C710 (B51-7104-00).

Service jig Parts No.

For initial position setting W05-0635-00

When transporting these models, always attach CAUTION CARD and STEPPED SCREW (for transportation)

KDC-C517FM, C717/Y

BLOCK DIAGRAM

SW5V

LIM SW

L.P.S.

EJ SW

ARM SW

12.5MHz

SPINDLE/LO-EJ

SLED

LOE SW

TR COIL

FO COIL

BTL

EEPROM

&TEXT DECODER

APC

SA5V

S8V

SYSTEM u-COM

IC7

IC1

RF AMP&SARVO DSP

16.93MHz

P-ON

Q10

Q15,16

Q20

BU. DET

IC8

IC5

MG SW

8V AVR

S8V

S-RAM

BU14V

CH RST

AUDIO OUT

5VREG

IC4

DA5V

S8V

HOT

IC9

RESET

7V/9V

Q21,22 M5V1

M5V2

SW5V

&DC MOTOR

DRIVER

ELEVATOR

AVR

SA5V

&D/A CONVERTER &SCF

MUTE

0bit

Q6,7

MUTE

Q4,5,8

SD5V

M5V2

AVR

CH-MUTE

CH-CON

5L I/F

IC11

COMM SW

to HEAD UNIT

ASSY (X13)

(X32)

(X13)

(X92)

PICKUP

CN101

DRIVER

RESET

Q101,201

ACC

BATT

GND

DETECTION

ACC

(+5V)

AVR

u-COM

IC2

IC1

CN103

Q1,6

Q4,5

VDD

HOLD

P ON PLL

12-17 26 61

29,30,60

74,77

IC1

LCD DRIVER

LCD1

19-22,32,66

CN101

CN1

6-43

RL1

CN105

RADIO

CN104

ANT IN

Q310

MODE 1,2

CH-CONTROL

Q306,

RIPPLE FILTER

307

MIX

PILOT

STAGE

IC301

MODULATOR

FM-St.

Q304,305 LEVEL CONTROL

AUDIO MUTE

Q309

ALC DETECTION

IC302

AMP

DRIVER

ALC

MPX

EMPHASIS

IC4

AVR(+5.6V)

MODE 1,2

Q308

CD-CH

13P

IC101

ISOLATION AMP. L.P.F.

2nd.

IC102

+V(AUDIO)

+V(RF STAGE)

SIGNAL (L/R)

CN102

KEY MATRIX

2,50-56

VDD

IC2

REMOTE SENSER

KDC-C517FM, C717/Y

Ref.No.

Component Name

Application/Function

Operation/Condition/Compatibility

RF amplifier built in digital servo and data processor IC. Focusing, tracking, sled and spindle servo processing. Detection of dropout, anti-shock, track

IC1 UPD63711AGC Servo IC

crossing and off-track conditions. Automatic adjustment (focusing, tracking, gain, offset and balance) operations. Digital signal processing (DSP, PLL, sub-codes, CD-TEXT decode, CIRC error correction, audio data interpolaration)operations.

IC4 KIA78L05F +5V AVR Analogue output circuit power supply for D/A converter

Focusing coil, tracking coil, spindle motor and sled motor driver. VO1-VO4 and VOL outputs ON/OFF function.

While MUTE1 goes "Hi", VO1 outputs are turned on. While MUTE2 goes "Hi", VO2-VO4 and VOL outputs are turned on.

VIN1 amplifier function(input selection and VREF selection)

IC5 LA6576 Motor driver 1. Input selection.

While VIN SW terminal goes "Lo", IC pin 15, 16 and 17 inputs are selected. While VIN SW terminal goes "Hi", IC pin 15, 18 and 19 inputs are selected.

2. VREF selection. While VIN SW terminal goes "Lo", internal VREF(2.5V typical) is selected. While VIN SW terminal goes "Hi", external VREF(IC pin 30 input) is selected.

IC7 UPD784214GC091

Mechanism MI-COM.

Mechanism and servo control BR24C02F-W or CAT24WC02JI

IC8 or M24C02WMN6T EEPROM LPS data back-up memory

or S-24C02BFJA or 24LC02BT-ISN

IC9 S-80830ANNP Reset IC When BU 5V voltage is less than 3.0V, IC outputs "Lo".

IC11 LC3564BT-70 S RAM CD-TEXT data memory

Q1 MCH6101 APC Laser diode auto power control Q4 DTA124EK 0 bit mute (L CH.) When 0 bit mute is activated, an emitter goes "Hi", and Q4 outputs "Hi". Q5 DTA124EUA 0 bit mute (R CH.) When 0 bit mute is activated, an emitter goes "Hi", and Q5 outputs "Hi".

Q6 DTC343TK Mute SW (L CH.)

When 0 bit mute or A mute drive is activated, a base goes "Hi", and L

channel audio signal is muted.

Q7 DTC343TK Mute SW (R CH.)

When 0 bit mute or A mute drive is activated, a base goes "Hi", and R

channel audio signal is muted.

Q8 DTA124EK A mute drive

When audio mute of IC7 is activated, a base goes "Lo", and audio mute

drive signal is outputted.

Q9 2SB1202 Servo 5V AVR Q9 is combined with IC5's pin 26 and 27 , and works as a driver of AVR.

Q10 2SB1295 P-ON 5V SW

While base goes "Lo", P-ON 5V is supplied to the microprocessor peripheral circuits.

Q11 DTC124EK Reset SW

When System Reset has activated, a base goes "Hi", and Q11 is turned on.

Q13 DTC124EUA CH CON SW

While CH CON or CH-CON2 mode is selected, a base goes "Hi", and Q13 is turned on.

Q14 DTA143EUA CH MUTE SW

When MUTE REQUEST to H/U is outputted, a base goes "Lo", and Q14 is turned on.

Q16 2SC4081 SRV 8V AVR Q16 is combined with Q15(X92-), and works as a pre-driver of AVR. Q17 DTA143EK

SRV 8V AVR SW

When Q18's base goes "Hi", Q17 is turned on, and SVR 8V AVR is working.

Q18 DTC124EUA

Q19 DTC124EUA 7/9V SW

When a base goes "Hi", Q19 is turned on, and SVR 8V AVR is outputting +7V.

When a base goes "Lo", Q19 is turned off, and SVR 8V AVR is outputting +8.5V.

Q20 DTC124EK

BU DETECTION SW

While BACKUP is applied, a base goes "Hi", and Q20 is turned on.

When momentary power down has detected, a base goes "Lo", and Q20 is turned off.

Q21 2SB1202

BU 5V AVR

While BACKUP is applied, AVR outputs +5V.

Q22 2SC4081 Q21 and Q22 are inverted Darlington connection.

Q30 DTC114YUA Eccentric disc SW

When an eccentric disc is detected, Q30 is turned on, and a preceding

beam is made to be delayed.

Q31 DTC124EUA VIN SW

While spindle servo or disc loading/eject mode is selected, a base goes

"Hi", and Q31 is turned on.

●CD PLAYER UNIT (X32-5090-0X)

COMPONENT DESCRIPTION

KDC-C517FM, C717/Y

COMPONENT DESCRIPTION

Ref.No.

Component Name

Application/Function

Operation/Condition/Compatibility

IC1 UPC7805AHF BU 5V AVR While BACKUP is applied, AVR outputs +5V. IC2 LC72329-9274 System MI-COM. System control

IC4 NJM78L05UA 5V AVR Power supply for FM modulator and RF amplifier IC101 NJM2060M Isolation amp. IC102 NJM4565MD Low pass filter IC301 BA1405F FM ST modulator

IC302 NJM4565MD

1/2 VCC driver,

ALC detection amp. Q1 DTC124EK ACC detection When Q4 is turned on , Q1 is turned on during ACC applied. Q2 2SA1782(T,U)

POWER SW

When Q3's base goes "Hi", Q2 is turned on, and RF modulator circuit is working.

Q3 DTC124EK

Q4 DTC143TK Reset SW

When RESET SW on display unit is pressed, Q4,Q1 and Q6 are turned off, and IC2 is holding.

Q5 DTC143TK CH RESET SW

When RESET SW on display unit is pressed, Q5 is turned off, and SYSTEM RESET signal is outputted to CD changer.

Q6 DTA124EK Hold detection SW

When RESET SW on display unit is pressed or ACC is OFF, Q6 is turned off, and IC2 is holding.

Q8 DTC143TK Relay driver

FM modulator output / Vehicles antenna input switching. When a base goes "Hi", FM modulator output is selected.

Q9 2SC4640(T,U) Ripple filter Power supply for RF amplifier

Q101 2SK2158

ALC control SW

Q201 2SK2158 Q303 2SA1162(GR) Pilot mix amp. Q304 2SK2158 Level control SW Level1/2 : OFF, Level3/4 : ON Q305 2SK2158 Level control SW Level2/4 : OFF, Level1/3 : ON Q306 2SK508L RF oscillator buffer Q307 2SC2714(Y) RF amp. Q308 2SK2158 Mode(1/2) SW Mode1 : ON, Mode2 : OFF Q309 2SK2158 Audio mute POWER ON mode : OFF, POWER OFFmode : ON Q310 2SK2158 Mode(1/2) SW Mode1 : OFF, Mode2 : ON

●RF MODULATOR UNIT

Ref.No.

Component Name

Application/Function

Operation/Condition/Compatibility

IC1 LC75852W

LCD driver with key-matrix

IC2 PNA4602M

Remote control light senser Q1 DTC144EK

LED ON/OFF SW When Q1's base goes "Hi", Q2 is turned on, and LED is turned on. Q2 DTB123YK

Q3 DTA144EK

Key-matrix permition SW

Ready on key-matrix

Q4 DTC144EK

IC2 ON/OFF SW

When Q4's base goes "Hi", Q5 is turned on, and 5V is supplied to remote

Q5 DTA114EK control sensor .

●DISPLAY UNIT

KDC-C517FM, C717/Y

MICROCOMPUTER'S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Description Processing Operation

1 NOR/RW O CD-DA/CD-RW Switching Not used(N.C.) 2 TSTB O CD-TEXT parameter strobe 3 P-CON O P-CON output Not used(N.C.) 4 FOK I Focus OK input "Hi" : Focus OK 5 XTALEN O Servo IC oscillation stop control "Hi" : Oscillation stop 6 RST O Servo IC reset terminal "Lo" : Reset 7 SAO O Servo IC command/parameter setting terminal

"Hi" : Parameter setting, "Lo" : Address resister setting

8 SSTB O

Servo IC command/parameter setting strobe terminal

"Hi"➝"Lo" : Serial data latch

9 VDD - Positive power supply connection terminal Connected to D 5V lines. 10 X2 - Main clock resonator connection terminal 2 11 X1 I Main clock resonator connection terminal 1 12 VSS - Ground connection terminal Connected to GND lines. 13 XT2 - Sub clock resonator connection terminal 2 Not used(N.C.) 14 XT1 I Sub clock resonator connection terminal 1 Not used(connected to GND lines.) 15 RESET I System reset input "Lo" : System reset 16 FOGUP I Vibration detect input "Hi" : Vibration detect 17 MGSW I Magazine switch input "Hi" : Magazine in 18 EJSW I Eject switch input "Hi" : Eject switch ON 19 COMMSW I 5-line communication old/new switch input

"Hi" : New communication, "Lo" : Old communication 20 PACK I Text data pack synchronous signal input "Hi"➝"Lo" : The head of the pack data 21 CH-CON I Changer control input "Hi" : Standby mode, "Lo" : Operation mode

22 BUDET I Momentary power down detection input

"Hi" : When momentary power down detected or BU OFF

"Lo" : BU ON 23 AVDD -

A/D converter positive power supply connection terminal

Connected to D 5V lines. 24 AVREF0 I A/D converter reference voltage input Connected to PON 5V lines. 25 HOT I Rise in temperature detection input 26 LPS I LPS Mechanical deck position detection input 27 LOESW I Loading complete switch input "Lo" : Loading complete 28 LIMSW I Limit switch input "Lo" : Pickup most inner position 29 TOFF I Tracking OFF mode terminal Not used(pull down to GND lines.) 30 ADJSEL I Servo automatic adjustment ON/OFF terminal Not used(pull down to GND lines.) 31 TBANK I Tracking gain switching mode terminal Not used(pull down to GND lines.) 32 SIM2 I Destination input 2 Not used(pull down to GND lines.) 33 AVSS - A/D, D/A converter ground connection terminal Connected to GND lines. 34 LPSCO O

LPS A/D converter reference power control output

Not used(N.C.) 35 AMUTE O Audio mute output "Lo" : Audio mute ON 36 AVREF1 I D/A converter reference voltage input Connected to D 5V lines. 37 SDI I Servo IC communication serial data input 38 SDO O Servo IC communication serial data output 39 SCK O Servo IC communication serial clock output 40 DATAH I Data input from H/U

●IC7 (CD PLAYER UNIT : X32-5090-0X)

KDC-C517FM, C717/Y

MICROCOMPUTER'S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Description Processing Operation

41 DATAC O Data output from the changer 42 HCLK I/O Communication clock input/output with H/U 43 RECQC O Communication request to H/U "Lo" : Communication requested 44 CHMUTE O Audio mute request to H/U "Lo" : Audio mute requested 45 TSI I Text data input from servo IC 46 TSO O Text data output to servo IC

47 TSCK O Text data clock to servo IC 48-55 A0-A7 O Address setting terminal for S RAM 56-63 D0-D7 I/O Data input/output terminal with S RAM 64-68 A8-A12 O Address setting terminal for S RAM 69-71 A13-A15 O Chip enable setting terminal for S RAM Not used(pull down to GND lines.)

72 VSS - Ground connection terminal Connected to GND lines.

73 A16 O Chip enable setting terminal for S RAM Not used(pull down to GND lines.)

74 A17 O Chip enable setting terminal for S RAM

75 RAMOK O Pickup check judging terminal for production Not used(N.C.)

76 ELVADJ I

Mechanism deck ascent/descent position terminal

Not used(pull up to D 5V lines.) 77 RD O Read-out to S RAM control output 78 WR O Write to S RAM control output 79 WAIT I

Waiting time insertion input when accessing S RAM

Not used(pull down to GND lines.) 80 ASTB O Chip selection to S RAM Not used(N.C.) 81 VDD - Positive power supply connection terminal Connected to D 5V lines. 82 PUSEL I Pickup type select terminal Not used(pull up to D 5V lines.) 83 REQH I Communication request from H/U "Lo" : Communication requested 84 SPLO+ O Spindle/Loading control terminal 85 SPLO- O Spindle/Loading control terminal 86 ELV+ O Mechanism deck ascent/descent terminal 87 ELV- O Mechanism deck ascent/descent terminal

88 SIM1 I Destination input 1

"Hi" : adapted for CD-TEXT

"Lo" : not adapted for CD-TEXT 89 SEARCH O Search mode output Not used(N.C.) 90 TEST1 I Test mode terminal 1 for test mode Not used(pull down to GND lines.) 91 TEST2 I Test mode terminal 2 for test mode Not used(pull down to GND lines.) 92 8/7V O Motor driver IC power voltage control output "Hi" : 7V, "Lo" : 8.5V 93 EEPWR I EEPROM write mode terminal for production Not used(pull down to GND lines.) 94 TEST/VPP I Flash ROM program mode terminal Not used(connected to GND lines.) 95 SRVSEL I

Servo active mode terminal (no mechanism movement)

Not used(pull down to GND lines.) 96 SLNSA I Sled non-sensitive area ON/OFF terminal Not used(pull down to GND lines.) 97 SDA I/O Data input/output with EEPROM 98 SCL O Clock output to EEPROM 99 PON O PON output "Lo" : AVR & LPS POWER ON

100 ARMSW I Arm switch input "Hi" : Arm switch ON

KDC-C517FM, C717/Y

MICROCOMPUTER'S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Description Processing Operation

1 XIN I Main clock resonator connection terminal 2 TEST2 I Test mode terminal 2 for test mode Not used(pull down to GND lines.)

3, 4 PG3, PG2 I Not used(pull down to GND lines.)

5 PG1 I Not used(pull up to +5v lines.) 6 PG0 I Not used(pull down to GND lines.)

7-9 PH3-PH1 O Not used(N.C.)

PH0 MUTE1

O Not used(N.C.)

PF3 MUTE0

O Not used(N.C.) 12 PF2 REQC I Communication request input form CH "Lo" : Communication requested 13 PF1 REQH O Communication request output to CH "Lo" : Communication requested 14

PF0 CHCON

O Control output to CH "Hi" : Operation mode, "Lo" : Standby mode 15

PE3 DATA IN

I Data input from CH

PE2 DATA OUT

O Data output to CH 17 PE1 SCK O Clock output to CH 18 PE0 O Not used(N.C.) 19

PD3 DATA OUT

O Data output to LCD 20 PD2 CLK O Clock output to LCD 21 PD1 RST O Reset output to LCD "Lo" : Reset 22 PD0 CE O CE output to LCD

23-25 PC3-PC1 Not used(N.C.)

26 PC0 SEPA O Separation select output "Hi" : Mode1, "Lo" : Mode2

27, 28 PB3, PB2 O Not used(N.C.)

29 PB1 GAIN1 O GAIN1 output "Hi" : Level 1/3, "Lo" : Level 2/4 30 PB0 GAIN2 O GAIN2 output "Hi" : Level 3/4, "Lo" : Level 1/2 31 VDD+5V - Positive power supply connection terminal Connected to +5V lines. 32

PA3 DATA IN

I Data input from LCD

33-35 PA2-PA0 I Not used(connected to GND lines.)

36 PI31 S28 O Not used(N.C.) 37 PI21 S27 O Not used(N.C.) 38 PI11 S26 O Not used(N.C.) 39 PI01 S25 O Not used(N.C.)

40-58 S24-S6 O Not used(N.C.)

ALC LOW S5

O Not used(N.C.)

60 MUTE S4 O Mute output

"Hi" : POWER OFF mode, "Lo" : POWER ON mode

SEP ATT S3

O Separation attenuator output "Hi" : Mode2, "Lo" : Mode1

62 RELAY S2 O Relay SW control

"Hi" : RF modular output, "Lo" : Vehicle antenna output

63 P ON S1 O P ON output "Hi" : RF modulator circuit is active.

64, 65

COM2, COM1

O Not used(N.C.) 66 REMO INT I Remote control sensor input

●IC2 (RF MODULATOR UNIT)

KDC-C517FM, C717/Y

MICROCOMPUTER'S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Description Processing Operation

67 HOLD I Hold input "Lo" : Microprocessor stop 68 RES I Not used(pull up to +5V lines.) 69 AOI I Not used(pull down to GND lines.) 70 HCTR I Not used(pull down to GND lines.) 71 LCTR I Not used(pull down to GND lines.) 72 SNS I Not used(pull down to GND lines.) 73 VDD - Positive power supply connection terminal Connected to +5V lines. 74 FMIN I FM input 75 AMIN I AM input Not used(pull down to GND lines.) 76 VSS - Ground connection terminal Connected to GND lines. 77 EO1 O FM frequency control output 78 EO2 O Not used(N.C.) 79 TEST1 I Test mode terminal 1 for test mode Not used(pull down to GND lines.) 80 XOUT - Main clock resonator connection terminal

KDC-C517FM, C717/Y

ADJUSTMENT

RF MODULATOR UNIT

1. DC balance adjustment (VR301) While observing the waveform with an oscilloscope at pin 13 of IC301, adjust VR301 to minimize the waveform level.

2. PLL control voltage adjustment (VC301) First set the transmission frequency to ∗87.9 MHz with the commander, then adjust VC301 so that the DC Voltage at the + pole of C317, measured using a multi-meter or digital tester, is + 3V (± 0.1 V). ∗NOTE: E type is 87.7MHz.

3. Modulation level adjustment (VR303) The method uses a standard receiver or tuner. Adjust VR303 so that the output level from the standard receiver or tuner is as specified.

L.P.S. initial position adjustment procedure

1. Connect the changer to the H/U.

2. While holding the magazine eject button of the changer, press the reset button of the H/U.

3. After about 3 seconds, release the magazine eject button.

4. Press the SRC button of the H/U to enter the CD-CH mode, and the H/U's display section indicates "E-88".

5. Move the mechanism deck to around the 1st stage by pressing the DISC- or DISC+ button.

6. Insert the adjustment tool (W05-0635-00) into the tool hole on the changer mechanism.

7. Then press the DISC+ button to move the mechanism deck until the mechanism's slider hits the adjustment tool.

8. When the motor locks (stops), press the REPEAT key of the H/U. When the REPEAT key is pressed, the mechanism moves automatically to the 1st stage and the initial position adjustment completes. (The data is written in the EEPROM at this time.)

W05-0635-00

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