Kenwood KDC-215-S Service Manual

CD RECEIVER

KDC-2016/215S
KDC-35MR

SERVICE MANUAL

© 1999-11 PRINTED IN JAPAN
B51-7563-00 (N) 1794

Escutcheon

(B07-2181-02)

KDC-2016

LOUD

SCAN RDM REP

Escutcheon

(B07-2169-02)

KDC-35MR

LOUD

SCAN RDM REP

Plastic cabinet assy

(A02-1486-13)

Front glass
(B10-3125-01)

45W 4

Front glass

(B10-3123-11)

CD MD-CHANGER CONTROL

45W 4

D.SCN

Panel assy
(A64-1891-02)

SRC

PWR
OFF

X

A.ADJ

AUTO

AME ADJ

CRSC

CLK

Panel assy
(A64-1889-02)

SRC

PWR
OFF

CRSC

DISC

DISC

CLK

M.RDM

X

A.ADJ

AUTO

AME ADJ

Mounting hardware assy

(J21-9491-03)

Escutcheon

(B07-2181-02)

KDC-215S

LOUD

Lever x2
(D10-3031-04)

Extension cord

Parts No.

CD mechanism(22P) W05-0618-00

Front glass
(B10-3122-01)

SCAN RDM REP

Panel assy
(A64-1888-02)

X

45W 4

A.ADJ

AUTO

AME ADJ

SRC

PWR
OFF

CRSC

CLK

Stay

(J54-0606-04)

Screw set
(N99-1632-05)

Screw set

(N99-1610-15)

DC cord

(E30-4783-05)

:KDC-215S/35MR

DC cord
(E30-4784-05)

:KDC-2016

:KDC-2016/215S

The MECHANISM OPERATION DESCRIPTION is the same as model KDC-S3007 and KDC-5050RG.
Please refer to the service manual for model KDC-S3007(B51-7029-00) or KDC-5050RG(B51-7099-00).

KDC-2016/215S/35MR

CONTENTS

BLOCK DIAGRAM........................................................................................ 2

COMPONENTS DESCRIPTION ................................................................... 3

TERMINAL DESCRIPTION........................................................................... 5

ADJUSTMENT ............................................................................................. 7

PC BOARD.................................................................................................... 8

SCHEMATIC DIAGRAM ............................................................................. 15

EXPLODED VIEW....................................................................................... 23

PARTS LIST ................................................................................................ 26

SPECIFICATIONS .................................................................... BACK COVER

BLOCK DIAGRAM

TUNER

IF1/IF2/PLL+B

AUDIO OUT

S-METER

CH

CH-CON

KDC-35MR

CN

KDC-35MR

FM+B

AM+B

VDD 5V

CD

SW1
SW2
SW3

CLK

DATA M

DATA S

SRQ

MUTE

RST

STOP

LO/EJ

MO SW

RST

REQ C

CLK

DATA H

REQ H

DATA C

MUTE

BU5V

IC2

FM
AM

CD
CH

QUAL

LEVEL

SCL

SDA

PHONE

ACC DET.

BU DET.

A8V

E-VOL
and
MPX

MUTE

SVR

DSI

VDD

Q12

SW5V

Q153,154
MUTE

IC5,
Q155,156

MUTE DRIVER

Q13

ACC DET.

SW5V BU5V P-CON

BU DET.

Q5,6

A8V

Q7

SERVO

Q150

SVR SW

Q1,2Q14

Q3,4

SW14V

Q17-20

Q8-11

IC4

POWER IC

THERMAL
PROTECTION

ILLUM

Q15,16

ANT-CON

FM
AM
CD

CD-CH

ACC

ANT-CONT

P-CON
BACK UP

PRE OUT

1605mV

561mV
3529mV
3529mV(KDC-35MR)

SP-OUT

KDC-2016

Q200,201

FM+B

Q202,203

AM+B

AFC

IC1

u-COM

382mV

170mV

SCL

SDA

REMO

1200mV

1200mV

SD

S-METER

PANEL

Q207

PAN 5V SW

TUN5V

SD

SERVO
A8V
BU5V

QUAL

RDDA

RDCK

BU5V

CS

IC3,Q50

RST

BACK
UP

NOISE

DATAS

CLKCEDATAL

(X13)

PANEL

RST SW

PAN 5V

IC1

LCD DRIVER
WITH
KEY MATRIX

IC2

REMOTE
CONTROL

KDC-35MR

PAN 5V

2

LCD

KDC-2016/215S/35MR

COMPONENT DESCRIPTION

SWITCH UNIT(X13-9680-1X)

Ref.No

. Component Name Application/Function Operation/Condition/Compatibility

IC1 LC75853NE LCD driver with key-matrix
IC2 RS-171 Remote control light sensor

DTA114EKorUN2111

Q1

ELECTRIC UNIT(X25-8430-XX)

Ref.No

. Component Name Application/Function Operation/Condition/Compatibility

IC1 UPD780058GC130 System MI-COM.
IC1 UPD780058GC144 System MI-COM.
IC2 TDA7400D E-VOL. & N.C. MPX
IC3 PST9130NR Reset IC “Lo”: Detection voltage below 3.0V
IC4 TDA7386 Power IC
IC5 HD74HC27FP Mute logic 3 input NOR gate x3
Q1 2SB1565F(E,F)
Q2 2SC1740S ON during BU applied
Q3

DTA124EKorUN2112

Q4

DTC144EKorUN2213
Q5 2SB1184
Q6 2SC1740S Inverted darlington connection
Q7 2SD2396F40 Servo AVR ON when the base goes “Hi”.
Q8

DTC144EKorUN2213
Q9

DTA124EKorUN2112

Q10 2SB1184
Q11 2SC1740S
Q12 2SC1740S
Q13 2SC1740S ACC detection ON when the base goes “Hi” during ACC applied.
Q14 2SA1036K SW 5V ON when the base goes “Lo”.
Q15 2SB1277(Q,R)
Q16

DTC114YKorUN2214

Q17 2SB1277(Q,R)
Q20

DTC114YKorUN2214

Q18 2SA1037K
Q19

DTA124EKorUN2112

Q50

DTC144EKorUN2213

Q150

DTC114YKorUN2214

Q153

DTC143TKorUN2216

Q154

DTC143TKorUN2216

Q155

DTA124EKorUN2112 Mute driver for Audio mute SW

Q156

DTC144EKorUN2213

Q200 2SB1277(Q,R)
Q201

DTC124EKorUN2212

Q202 2SB1277(Q,R)
Q203

DTC124EKorUN2212

Q207 2SA1037K Panel detection SW ON when the base goes “Lo” during the panel closed.

key-matrix permission SW Ready on key-matrix

BU 5V AVR

SW14V

Audio 8V AVR

Illumination AVR Q10 is turned ON when Q8’s base goes “Hi”.

BU detection(Momentary power down detection)

P-ANT SW

P-CON SW

P-CON protection

RESET SW
SVR SW POWER IC RESET is activated when the base goes “Hi”.

Audio mute SW Audio pre-outs are muted when the base goes “Hi”.

E-VOL. mute SW E-VOL. is muted when the base goes “Hi”.

FM+B SW

AM+B SW

Inverted darlington connection

Audio 8V AVR and Servo AVR ON/OFF control
Q3 is turned ON when Q4’s base goes “Hi”.
Q5 is turned ON when Q6’s base goes “Hi”.

ON when the base goes “Hi” during BU applied.

Q15 is turned ON when Q16’s base goes “Hi”.
ON during FM/AM reception
Q17 is turned ON when Q20’s base goes “Hi”.
ON while power is on or CD loading/eject.
Protect Q17 by turning ON when P-CON output is grounded.
Prevents Q18 tuning ON during start-up after power ON.
System RESET is activated when the panel reset SW is pressed.

ON when the base goes “Lo”.

Q200 is turned ON when Q201’s base goes “Hi”.
ON during FM reception
Q202 is turned ON when Q203’s base goes “Hi”.
ON during AM reception

3

KDC-2016/215S/35MR

COMPONENT DESCRIPTION

CD PLAYER UNIT(X32-4600-00)

Ref.No

. Component Name Application/Function Operation/Condition/Compatibility

Generation of RF signal based on the signals from the APC

IC1 AN8806SB RF amplifier

IC2 MN662770KA7

IC4 BA5917AFP BTL driver

IC5 TA78L05F 5V AVR
IC6 NJM4565MD Low pass filter
Q1 2SA1362(Y) APC LD power control
Q2 DTC124EUA POWER SW Power on during the source selected CD
Q3 2SA1362(Y) A.8V SW A8V line ON/OFF control
Q4 2SA1362(Y) D.5V SW D5V line ON/OFF control
Q5 DTC124EUA MOTOR ON SW Power on during CD roading or eject action
Q6 2SA1576A TE LEVEL SW OFF during CDR play

CD signal processor bult-in MI-COM.

circuit and pickup, and generation of servo error(focusing error
and tracking error) signals. Detection of dropout, anti-shock,
track crossing and off-track conditions.
Focusing,tracking,sled and spindle servo processing. Auto
matic adjustment(focusing, tracking, gain, offset and balance)
operations. Digital signal processing(DSP, PLL, sub-codes, CIRC
error correction, audio data interpolaration) operations.
Focusing coil, tracking coil, spindle motor and sled motor
driver

4

KDC-2016/215S/35MR

TERMINAL DESCRIPTION

Terminal description

Pin No.

1 AV CONT O
2 IC2 TYPE0 I IC2 setting terminal “Lo”: Initial value
3 IC2 TYPE1 I IC2 setting terminal “Lo”: Initial value
4 AVSS - Ground connection terminal connected to GND
5 M MUTEL I
6 N.C O Not used
7 AVREF1 I
8 ILLUMI O

9 L RES O Reset output to the LCD driver IC “Lo”: Reset
10 PANEL I Panel open/close detection input “Lo”: Panel closed
11 L DATAL I Data input from the LCD driver IC
12 L DATAS O Data output to the LCD driver IC
13 L CLK O Clock output to the LCD driver IC
14 N.C O Not used
15 N.C O Not used
16 CH-DATAC I Data input from changers
17 CH-DATAH O Data output to changers
18 CH-CLK I/O Clock input/output with changers
19 L CE O CE output to the LCD driver IC “Hi”: Active
20 N.C O Not used
21 M RST O
22 M STOP O
23 MOSW O
24 PLL SCL O Clock output to the tuner pack
25 AM+B O AM+B control “Hi”: during AM reception
26 FM+B O FM+B control “Hi”: during FM reception
27 M-SCL I/O
28 DSI O DSI output “Hi”: LED ON
29 LO/EJ I/O
30 SW3 I
31 R DATA I Data input from RDS decoder
32 R QUAL I Quality input from RDS decoder
33 VSS1 - Ground connection terminal connected to GND
34 SD I SD input from the tuner pack “Hi”: Station detected
35 IC2 SCL O Clock output to the E-VOL. IC
36 M-SDA I/O
37 PLL SDA I/O
38 IC2 SDA I/O
39 MUTE O Mute control output “Hi”: Mute ON / “Lo”: Mute OFF
40 N.C O Not used

Pin Name I/O Description Processing Operation

A/D converter reference voltage control output

Muting request from the MICOM. of CD mecha.

D/A converter reference voltage input
Illumination AVR ON/OFF control output

Reset output to the MICOM. of CD mecha.
Stop request to the MICOM. of CD mecha.
CD mechanism loading motor control output

Clock input/output with the MICOM. of CD mecha.

CD mecha.Loading/Eject switching output
Down & limit switch detection input

Data input/output with the MICOM. of CD mecha.
Data input/output with the tuner pack
Data input/output with the E-VOL. IC

“Hi”: ON / “Lo”: OFF

“Lo”: Mute request

“Hi”: AVR ON

“Lo”: Reset
“Lo”: Stop
“Hi”: Loading & Eject / “Lo”: other

“Lo”: Loading / “Hi”: Eject
“Hi”: Chucking / “Lo”: Pickup most inner position

5

KDC-2016/215S/35MR

TERMINAL DESCRIPTION

Terminal description

Pin No.

41 AFC O AFC control output “Lo”: during FM seek
42 CH-REQH O Request output to changers “Lo”: Request
43 CH-CON O Changer control “Lo”: Standby / “Hi”: ON
44 N.C O Not used
45 P MUTE O Power IC mute control “Lo”: Mute

46 SVR O Power lC reset terminal OFF/ON is detected and after POWER ON/OFF ,

47 STBY O Power IC standby control output “Hi”: POWER ON mode
48 P CON O Power control “Hi”: POWER ON mode except ALL OFF mode
49 P ANT O Antenna control “Hi”: during FM/AM reception
50 BEEP O BEEP sound output
51 ACC DET I ACC detection input “Hi”: ACC OFF / “Lo”: ACC ON

52 BU DET I

53 N.C O Not used
54 N.C O Not used
55 N.C O Not used
56 SW5 O SW 5V control “Lo”: POWER ON mode

57 P ON O

58 TYPE2 I Destination type input terminal 2
59 N.C O Not used
60 RESET I Reset input terminal “Lo”: System reset

61 REMO I

62 R CLK I Clock input from RDS decoder
63 CH-REQC I Request input from changers “Hi”: Request
64 SW1 I Loading detection “Lo”: CD chucking
65 KEY-REQ I Key request terminal “Lo”: Request
66 SW2 I 12cm disc detection terminal “Lo”: 12cm disc
67 VSS0 - Ground connection terminal connected to GND
68 VDD1 - VDD connection terminal
69 X2 ­70 X1 I
71 IC(TEST) - Not used connected to GND
72 XT2 ­73 N.C I
74 VDD0 - VDD connection terminal
75 AVREF0 I

6

Pin Name I/O Description Processing Operation

Momentary power down detection input

Microprocessor peripheral power
supply control terminal

Data input from the remote
control light sensor

Main clock resonator connection terminal
Main clock resonator connection terminal

Sub clock resonator connection terminal
Sub clock resonator connection terminal

A/D converter reference voltage input

When the momentary power down ,after ACC

the output goes “Hi” temporarily.

“Hi”: When momentary power down detected
or BU OFF / “Lo”: BU ON

“Hi”: ACC ON or during CD Loading/Eject

N.C.
connected to BU5V lines

KDC-2016/215S/35MR

TERMINAL DESCRIPTION / ADJUSTMENT

Pin No.

76 SMETER I S-meter input from the tuner pack
77 PHONE I PHONE detection input
78 NOISE I Noise detection input
79 TYPE0 I Destination type input terminal 0
80 TYPE1 I Destination type input terminal 1

Pin Name I/O Description Processing Operation

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

ADJUSTMENT

TEST MODE

1. To enter test mode
While holding the “FM” key and preset “6” key ,reset the unit.
All indication segments are ON at the beginning of test mode.

2. To release test mode
Simply reset the unit.
(NOTE) The test mode is not canceled by ACC OFF ,power OFF ,momentary power down or the panel detaching.

3. CD receiver test mode specification
Pressing the “Track up” key jumps between tracks in the following order.
No.9 → No.15 → No.10 → No.11→ No.12 → No.13 → No.14 →No.9 (Same as the beginning)
Pressing the “Track down” key jumps to the previous track to the being played.
Pressing the preset “1” key jumps to No.28 track.

4. Audio adjustment
The volume is set to -10dB (which is shown as 30).
Loudness is OFF.
The BASS / TREBLE and BALANCE / FADER controls can be set to the full boost / full cut and full front / full rear
respectively by pressing the “Track UP” / “Track DOWN” keys.
Sound coordination doesn’t appear for the feed.

7

A B C D E

1

2

3

PC BOARD
(COMPONENT SIDE VIEW)

X13-9680-1X (J74-0978-12)

KI5

D17

SRC

KI1

KS4

3

1

D10

IC2

FM

KI1

KI2

C7

2

4

R13

SW5V

R11

R9

R19

KI3

REMO

C5

KI3

R5

R7

R10

D11

R17

R12

PL1

R3

KI4

D12

AUD

RST

D16

R4
R2

KI4

D13

KI5

14

AM

KS5

2

R16
R18

KS4

KS5

J1

D15

6

CLK

D14

AUTO

D9

1

15

(FOIL SIDE VIEW)

X13-9680-1X (J74-0978-12)

KI5

D11

KI4

KI3

R12

PL1

REMO

C5

KI3

R3

R10

KI2

R17

R13

R5

D13

KI5

D12

KI4

AUD

D16

2

RST
R4

R2

14

AUTO

1

15

CLK

D14

D9

AM

R16
R18

KS5

KS4

KS5

J1

D15

6

R19

C7

2

4

R7

D10

FM

D17

KS4

SRC

KI1

KI1

1

IC2

3

SW5V

R11

38

R9

R8

L-DATAL

IC1

5

D22

D23

D8

C1

4

Q1

EB

KS6

1

D7

3

16

KS3

4

L-CE

D-GND

C4

C2

CP1

C3

CP2

49 64

48

5

33

32 17

D6

2

ILL-GND
R15

PAN5V

R14

KS2

D5

1

RST

ATT

D4

LAMP+B

1242538

6

KS3

IC Q

address

15B
22B

15C

D1

KI2

VOL

UP

7

KS2

D2

PL2

R21

VOL

DWN

D3

R20

D8

4

Q1

KS6

3

KS3

2

1

5

D22

D23

BE

64

1

D7

16

17

D6

ILL-GND

D5

RST

PAN5V

ATT

D4

LAMP+B

C1

L-DATAL

R15

R14

KS2

IC1

L-CE

D-GND

C4

R8

C2

CP1

C3

CP2

49

48

33

32

KS3

24 25

1

IC Q

address

15D

R20

R21

VOL
DWN

D3

PL2

KS2

VOL

UP

D2

22E

15D

D1

KI2

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

8