© 2001-3 PRINTED IN JAPAN
B51-7753-00 (N) 1736
CD RECEIVER
KDC-5018/516S/57MR
SERVICE MANUAL
47W 4
X
KDC-516S
DAB
47W 4
X
KDC-5018
DAB
47W 4
X
KDC-57MR
DAB
DC CORD
(E30-4940-05)
: KDC-516S/57MR
DC CORD
(E30-4939-05)
: KDC-5018
BATTERY
(SIZE: AAA)
Not supplied as
service parts
SCREW SET
(N99-1704-05)
SCREW SET
(N99-1700-05)
STAY
(J54-0606-04)
LEVERx2
(D10-4562-04)
ESCUTCHEON
(B07-3010-02)
REMOTE
CONTROLLER
ASSY
(A70-0883-05)
: KDC-5018
MOUNTING
HARDWARE
ASSY
(J21-9641-13)
PLASTIC
CABINET ASSY
(A02-1497-03)
KDC-516S
ESCUTCHEON ASSY
(B07-3007-03)
FRONT GLASS
(B10-3267-01)
PANEL ASSY
(A64-2165-02)
KDC-57MR
ESCUTCHEON ASSY
(B07-3017-03)
FRONT GLASS
(B10-3268-01)
PANEL ASSY
(A64-2166-02)
KDC-5018
ESCUTCHEON ASSY
(B07-3007-03)
FRONT GLASS
(B10-3271-01)
PANEL ASSY
(A64-2169-02)
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-5018/516S/57MR
2
BLOCK
DIAGRAM
PLL+B
FM+B
Q45,47
Q46,48
AM+B
DIMMER
DET.
ACC
BU DET.
A8V
A8V
Q14,15
Q16,17
Q19-22
SERVO AVR
Q18
SERVO+B
SW5V
Q13
Q55,56
Q33
Q11,12
SW5V
BU5V
BU5V
P CON
ANT-CON
Q28,31
Q27,29
Q30,32
MUTE
IC3
Q7
DRIVER
MUTE
Q1,2,5,6
POWER IC
IC4
u-COM
CD
CH
F/E
A1
E-VOL
IC2
PRE OUT
SP-OUT
DIMMER
ACC
ANT-CONT
P-CONT
IC1
EX.AMP CONTROL
ILLUM
+B
BUFFER
NOISE
Q43
PRE OUT OUTPUT VOLTAGE
CONTROL
EX.AMP
Q25
Q26
Q34
(M) TYPE
PANEL 5V
PANEL 5V
SW14V
PANEL
POSITION
DET.
CH
QU
A
L
SERVO+B
MUTE R
STOP
SW2
LO/EJ
MUTE L
RST
SW3
SW1
SDA
SCL
A8V
BU5V
SW5V
RST
REQ C
CLK
CH-CON
DATA H
REQ H
CD
AM
FM
P MUTE
MUTE
SW5V
PANEL5V
ILL+B
SR
T
-SW1
SR
T
-SW2
RDCK
RDD
A
QU
A
L
SD
A
SCL
AFS
AFS
A8V
PLL DATA
PLL CLK
IFC OUT
S-METER
DATA C
BACK UP
BU5V
600mV
3600mV
CHANGER
AM
1800mV
FM
230mV
1200mV
1200mV
470mV
AUDIO OUT
FM+B
NOISE
3600mV
CD
LEVEL
MODEL
MO SW
RESET IC
IC8
MATRIX
KEY
L DATAL
L CE
L CLK/PANEL
DIMMER
REMO
RESET
DRIVER
MUTE
LCD DRIVER
IC1
IC2
Q5
Q3,4
ED1
SW
RESET
LCD
(BACK LIGHT WLED)
DIMMER
PWM CONTROL
REMO
G/R SW
LCD AVR
PANEL 5V
(X13- )
KDC-5018/516S/57MR
3
COMPONENTS DESCRIPTION
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
IC1
LC75808W
LCD driver with the key matrix
IC2
RS-171
Remote sensor IC
Q1
DTA114EUA or KRA302
Key-permission SW
For the key scanning start
Q5
2SC2412K or 2SD601A
VLCD AVR
Q6
DTA114EUA or KRA302
REMO SW
While a base goes "Lo", PAN 5V is supplied to the
Remote sensor IC.
Q7
DTC143ZK
Dimmer SW
Usually Q7's base goes "Hi". When DIMMER mode is
selected, pulse wave shape is applied to Q7's base.
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
IC1
UPD703033GC057
System MI-COM.
IC2
TDA7407D
E.VOL & N.C.MPX IC
IC3
HD74HC02FP
or TC74HC02AF
Mute logic
2-input NOR x 4
IC4
TA8263BH
Power AMP. IC
IC8
S-80837ANNP
Reset IC
When BU 5V voltage is less than 3.7V, IC outputs "Lo".
Q1
DTC143TUA or KRC410
Pre mute (Front L)
When Q1's base goes "Hi", Pre-output is muted.
Q2
DTC143TUA or KRC410
Pre mute (Front R)
When Q2's base goes "Hi", Pre-output is muted.
Q5
DTC143TUA or KRC410
Pre mute (Rear L)
When Q5's base goes "Hi", Pre-output is muted.
Q6
DTC143TUA or KRC410
Pre mute (Rear R)
When Q6's base goes "Hi", Pre-output is muted.
When BU detection SW or System RESET or MI-
Q7
DTA124EUA or KRA303
Mute driver
COM.'s Pre-mute is working, a base goes "Lo",
and Q7 is turned on.
Q11
2SC4081 or 2SD1819A
BU 5V AVR
While BACKUP is applied, AVR outputs +5V.
Q12
2SB1548(P)
Q11 and Q12 are inverted Darlington connection.
Q13
2SA1576A or 2SB1218A
SW 5V
While a base goes "Lo", SW 5V is supplied to the
microprocessor peripheral circuits.
Q14
2SC4081 or 2SD1819A
A8V AVR
When Q14's base goes "Hi", A8V AVR outputs 8V.
Q15
2SB1548(P)
Q16
DTC124EUA or UN5212
A8V AVR and SERVO +B AVR ON/OFF control
Q17
DTA124EUA or KRA303
SW14V SW
While Q16's base goes "Hi", Q17 is turned on,
A8V AVR and SERVO +B AVR are working.
Q18
2SD2375
SERVO +B AVR
When Q18's base goes "Hi", SERVO +B AVR outputs 8V.
Q19
DTC124EUA or UN5212
ILL +B AVR ON/OFF control
Q20
DTA124EUA or KRA303
ILL +B SW
While Q19's base goes "Hi", Q20 is turned on,
and ILL +B AVR is working.
Q21
2SB1184
While Q22's base goes "Hi", AVR outputs +10.5V.
Q22
2SC4081 or 2SD1819A
ILL +B AVR
Works during POWER ON mode with a panel attached
to the set.
Q25
DTA123JK or KRA105S
EXT. AMP CON. SW
When a base goes "Lo", Q25 is turned on.
Q26
DTC144EUA or UN5213
Small lamp detection SW
When vehicle small lamps turn on, Q26 is turned on .
Q27
DTC114YUA or UN5214
P-CON SW
When Q27's base goes "Hi", Q32 is turned on .
Q32
2SB1277(Q,R)
Works during POWER ON mode.
GSWITCH UNIT (X13-9960-13)
GELECTRIC UNIT (X25-8770-XX)
KDC-5018/516S/57MR
4
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
Q29
DTA124EUA or KRA303
P-CON. protection inhibit SW
Prevents Q30 tuning ON during start-up after power ON.
Q30
2SA1576A or 2SB1218A
P-CON. protection SW
Protect Q32 by turning ON when P-CON output is grounded.
Q28
DTC114YUA or UN5214
ANT-CON. SW
When Q28's base goes "Hi", Q31 is turned on.
Q31
2SB1277(Q,R)
Works during TUNER mode.
While BACKUP is applied, a base goes "Hi",
Q33
2SC4081 or 2SD1819A
BU detection SW
and Q33 is turned on. When momentary power down
has detected, a base goes "Lo", and Q33 is turned off.
Q34
2SC4081 or 2SD1819A
ACC detection SW
While ACC is applied, a base goes "Hi", and Q34 is turned on.
Q42
DTC124EUA or UN5212
E. VOL mute SW
When BU detection SW or MI-COM.'s mute is working,
a base goes "Hi", and Q42 is turned on.
Q43
2SC4081 or 2SD1819A
Noise buffer
Q45
DTC124EUA or UN5212
FM +B SW
When Q45's base goes "Hi", Q47 is turned on .
Q47
2SB1277(Q,R)
Works during FM reception mode.
Q46
DTC124EUA or UN5212
AM +B SW
When Q46's base goes "Hi", Q48 is turned on .
Q48
2SB1277(Q,R)
Works during AM reception mode.
Q51
DTC144EUA or UN5213
IFC buffer
Waveform shaping
Q55
2SA1576A or 2SB1218A
PAN 5V SW
While a panel is attached to the set, Q56's base goes "Hi",
Q56
DTC124EUA or UN5212
and Q55 is turned on.
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
Generation of RF signal based on the signals from the APC
circuit and pickup, and generation of servo error (focusing
IC1
AN22000AA
RF amplifier
error and tracking error) signals.
Detection of dropout, anti-shock, track crossing and off-track
conditions, Gain control function building in.
IC2
MN662774KG1
CD signal processor bult-in MI-COM.
IC4
BA5917AFP
4CH BTL driver
Focusing coil, tracking coil, spindle motor and sled motor driver
IC6
NJM4565MD
OP Amp.
Low pass filter
Q1
MCH6101
APC
LD power control
Q2
DTC124EUA
P ON SW
When CD source is selected, Q2's base goes "Hi",
Q3 and Q4 are turned on.
Q3
DTA143XUA
A.8V SW
A8V ON/OFF control. When a base goes "Lo",
Q3 is turnde on.
Q4
2SA1362(Y)
D.5V SW
D5V ON/OFF control. When a base goes "Lo",
Q4 is turnde on.
Q5
DTC124EUA
MOTOR SW
When CD loading or eject operation is activating,
Q5's base goes "Hi", Q4 is turned on.
GCD PLAYER UNIT (X32-5010-00)
COMPONENTS DESCRIPTION
KDC-5018/516S/57MR
5
GIC1 (ELECTRIC UNIT : X25-8770-XX)
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No.
Pin Name
I/O
Description
Processing Operation
1
AM+B
O
AM+B control
"Hi": During AM reception
2
FM+B
O
FM+B control
"Hi": During FM reception
3
AFS
O
Noise detection time constant switching terminal
"Hi": During FM reception, "Lo": During FM seek or AF search
4
PLL-DATA
I/O Data input/output with F/E
5
PLL-CLK
I/O Clock input/output with F/E
6
EVDD
-
Power supply connection terminal
Connected to BU 5V lines.
7
EVSS
-
Ground connection terminal
Connected to GND lines.
8
NC
O
Not used(N.C.)
9
BEEP
O
BEEP sound output
10
REMO
I
Data input from the remote control light sensor
11
CH-REQH
O
Request output to changers
"Lo": Request
12
CH-RST
O
Reset output to changers
: Reset
13
IC2-SDA
I/O Data line with IC2, IC5 and CD MECHA. MI-COM.
14
IC2-CLK
I/O Clock line with IC2, IC5 and CD MECHA. MI-COM.
15
CH-MUTE
I
Mute request from changers
"Hi": Mute request
16
CH-CON
O
Changer control
"Hi": Operation mode, "Lo": Standby mode
17
DIMMER-CON
O
Dimmer control output
Pulse wave shape: DIMMER mode, "Hi": POWER ON
18
TEST
-
Test terminal
Not used (connected to GND lines)
19
P-MUTE
O
Power IC mute control output
"Lo": Mute (POWER OFF, TEL MUTE)
20
P-STBY
O
Power IC standby control output
"Hi": POWER ON mode except panel detached
or panel mask position
21
MUTE
O
IC2 mute control output
"Hi": Mute on
22
NC
O
Not used(N.C.)
23
PRE-MUTE
O
Pre-outputs mute control output
"Lo": Mute
24
ACC-DET
I
ACC detection input
"Hi": ACC OFF, "Lo": ACC ON
25
DIMMER
I
Small lights detection input
"Lo": During vehicle small lamps turn on.
26
SW5V
O
SW 5V control output
"Lo": POWER ON mode or during CD loading /
eject action.
Bass boost OFF__"Hi": 160msec, "Lo": 40msec
27
EXT-AMP-CON
O
External amp. control output
Bass boost LOW__"Hi": 130msec, "Lo": 70msec
Bass boost HI__ "Hi": 100msec, "Lo": 100msec
28
P-CON
O
Power control output
"Hi": POWER ON mode except ALL OFF mode.
29
ANT-CON
O
Antenna control output
"Hi": During FM/AM reception or TI reception.
30
P-ON
O
SW 14V control output
"Hi": POWER ON mode or during CD loading /
eject action
31
RESET
I
Reset input terminal
"Lo": System reset
32
XT1
I
Sub clock resonator connection terminal
Clock count during POWER OFF mode
33
XT2
-
Sub clock resonator connection terminal
34
REGC
-
C terminal
35
X2
-
Main clock resonator connection terminal
Oscillation stop: POWER OFF mode or
momentary power down detected
36
X1
I
Main clock resonator connection terminal
37
VSS
-
Ground connection terminal
Connected to GND lines.
38
VDD
-
Power supply connection terminal
Connected to BU 5V lines.