Kenwood KDC-1023S User manual

©2002-11 PRINTED IN JAPAN
B53-0005-00 (N)1724
COMPACT
RDMLOUD REPSCAN
OFF
KDC-122
CRSC
AMEAUTOADJCLK
AUD
45Wx4
Panel assy
(A64-2907-02): KDC-122
(A64-2908-02): KDC-122S
Front glass
(B10-4355-01): KDC-122
(B10-4356-01): KDC-122S
Escutcheon
(B07-3060-02): KDC-122
(B07-3022-02): KDC-122S
COMPACT
RDMLOUD REPSCAN
OFF
KDC-1023
CRSC
AMEAUTOADJCLK
AUD
50Wx4
Panel assy
(A64-2909-02): KDC-1023
(A64-2910-02): KDC-1023S
Front glass
(B10-4357-01): KDC-1023
(B10-4358-01): KDC-1023S
Escutcheon
(B07-3001-02): KDC-1023
(B07-3022-02): KDC-1023S
DIGITAL AUDIO
DIGITAL AUDIO
DC cord
(E30-4784-05) Mounting hardware assy (J21-9716-03) Lever (D10-4589-04)x2 Screw set (N99-1719-05)
CD RECEIVER
KDC-1023/S
KDC-122/S
SERVICE MANUAL
CD mechanism operation description is not in this sarvice manual.
Please, refer to sarvice manual X92-4030-0x (B51-7867-00). CD mechanism extension cord : W05-0618-00

KDC-1023/1023S/122/122S 2
BLOCK DIAGRAM
1200mV
1200mV
CD : 3600mV
CH : 3600mVAM(E) : 855mV
FM(E) : 1372mV
FM(J,K) : 1800mV
AM(J,K) : 600mV
CHANGER
KEY MATRIX
WITH
LCD DRIVER
LCD REMOCON
MI-COM
CD
ANT
AM AGC
FM AGC
DECODER
RDS RESET
IC
EEP-ROM
TUNER,MPX &
E-VOL.
SUPPLY IC
SW5V
SERVO
P-ANT
P-CON
POWER
MUTE
LOGIC
DET
ACC
BU
DET
MUTE
PRE
POWER IC SP
ACC
UP
BACK
OUT
OUT
PRE
IC1
DATA H
MUTE
DATA C
REQ H
CH-CON
AUDIO OUT
CLK
REQ C
RST
BACK UP
BU5V IC2 SW5V
LO/S
RST
LOE/LIM
MO
LO/EJ
STOP
MUTE
8EJE
SDA
SCLK
AUDIO OUT
12EJE
Q501
Q502
AM+B
FM+B
AM AGC OUT
IC6
CH
CD
SERVO
BU5V
A8V
TUNER OUT
BU5V IC11
IC12
IC10
FM AGC OUT
A8V
SW2
SW1
ILLUMI
VCC
BU5V
AUDIO+B
AM+B
FM+B
BACK LIGHT
KEY ILLUMI
Q51,55
SW5V
Q50
SERVO
BU5V
FM+B
AM+B
A8V
P-CON
P-ANT
IC8
Q20
Q10
IC7
MUTE
Q223,224
IC4

KDC-1023/1023S/122/122S
3
● SWITCH UNIT (X16-1460-13/2370-11)
COMPONENTS DESCRIPTION
Ref.No. Application/Functions Operation/Condition/Compatibility
IC1 LCD driver & key matrix
Q1 Key scan start When Q1 base goes Lo, key scan start.
● ELECTRIC UNIT (X25-9600-xx)
Ref.No. Application/Functions Operation/Condition/Compatibility
IC1 System control µ-com System µ-com
IC4 Power amplifire E-Vol output encoder power amplification for speaker.
IC7 Power supply (Multi AVR) -
When a pin 1, 2, or 13 is "H", MUTE turns on
IC8 MUTE Logic When a pin 3, 4, or 5 is "H", P-AMP mute turns ON.
Changer is RESET when a pin 9, 10, or 11 is "L".
IC10 Tuner & E-Vol. FM/AM tuner & stereo decoder & E-Vol.
IC11 Power on reset When B.U. 5V voltage is less than 3.5V, power reset.
IC12 E2P-ROM Writing and read-out of adjustment data for a tuner
Q10 B.U. detector BU on (base "H") : Collector "H"
Q20 A.C.C detector ACC ON (base : "H") : Collector "L"
Q40 MUTE driver Base "L" : Mute on (collector "L")
Q50 SW 5V Base "L" : SW5V on
Q51 SERBO AVR control Pin 2 "H" : Serbo on (pin 4 "H")
Q53
Q55 SERBO AVR Base "H" : Serbo on
Q70 Surge detector Base "H" : Surge detect
Q223,224 MUTE Base "H" : Mute on
Q251
Q501 AM RF amplifire Base "H" : Gain UP
Q502 FM RF amplifire Gate "H" :Gain UP

KDC-1023/1023S/122/122S
MICROCOMPUTER'S TERMINAL DESCRIPTION
4
● SYSTEM MICROCOMPUTER uPD780058GC501 (X25 : IC1)
Pin No. Name I/O Description Processing Operation
1 TDF DET I Panel detection H:Panel detached L:Panel attached
2 8EJE SW I H:Eject is completed
Except 8cm CD model:always output L
3 NC O Not used (out put L)
4 Avss H:Panel detached L:RESET
5 L-RST O LCD driver RESET ∆3 normal H , Power off L
When 7seg model,output L
6 L-CE O LCD driver selection H:Select (panel communication)
When panel attached,output L
7 AVREF1
8 NC Not used (connected to 9pin)
9 IC10-DATA I/O IC10,E2PROM data communication ∆3 non communication : H
10 IC10-CLK O IC10,E2PROM clock communication ∆3 non communication : H
Non communication : H
11 L-DATAL I Data input from the LCD driver When panel detached : L
∆3 Pull down on X25 unit,Pull up on X16 unit
12 L-DATAS O Data output to the LCD driver When panel detached , output L
13 L-CLK O Clock output to the LCD driver When panel detached , output L
14 R-DATA I Data input from the RDS Except RDS model : output L
15 R-QUAL I Quality input from the RDS Except RDS model : output L
16 CH-DATAC I Data input from the changer (new 5L) Except changer model : output L
17 CH-DATAH O Data output to the changer (new 5L) When non communication ,last data keeping
Except changer model : output L
18 CH-CLK I/O Clock input/output with the Changer (new 5L) Check the old and new
Except changer model : output L
19 CH-REQH O Request output to the changer (new 5L) L:Requset
Except changer model : output L
20 NC O Not used (output L)
21 AFS O Noise detection time constant switching terminal
H:Normal L:FM/AM seek and AF search
∆3 (When tuner SRC auto zero , L)
22-24 NC O Not used (output L)
25 CH-CONT O Changer control H:Changer on L:Changer off
Except changer model : output L
26 TYPE REF O 5V lines output for destination setting H:During destination reading
27 SD I Tuner SD input H:Station detected
28 NC O Not used (output L)
29 TYPE2 I Destination type selection terminal 2 Refer to destination type list.
30 TYPE1 I Destination type selection terminal 1 Refer to destination type list.
31 TYPE0 I Destination type selection terminal 0 Refer to destination type list.
32 TUNER-TYPE1 I Destination available/genuine model rool off H:genuine model 1 L:available model
33 Vss1
34 TUNER-TYPE0 I Destination available/genuine model noise cancel H:genuine model 0 L:available model
35 MUTE O Mute (E.Vol,Preset) control H:mute on L:mute off
Power off after that 15 second L
36 M-DATA I/O Data input/output with the CD mechanism ∆3 non communication : H
37 M-CLK O Clock output to the CD mechanism ∆3 non communication : H
When adjustment = H
38 ADJ O Tuner lines adjustment PS1-0,1=L PS1-2,2-0,1=Hi-z
IC10-DATA,CLK=Hi-z
39 P-MUTE O Power IC mute control H:mute off L:mute on
Power off after that 15 second H
40 SVR O Power IC servo control H:When momentary power down detected
L:Nomal
41 P-STBY O Power IC standby control H:Power IC ON L:Power IC OFF
42 SW5V O SW 5V control H:SW5V OFF L:SW5V ON
Power off after that 10 second H

KDC-1023/1023S/122/122S
MICROCOMPUTER'S TERMINAL DESCRIPTION
5
Pin No. Name I/O Description Processing Operation
43 B.U-DET I Back up detection terminal H:power down L:B.U. on
44 ACC-DET I ACC detection terminal H:ACC OFF L:ACC ON
45 PS1-0 O Power supply IC SW1 control 0
Audio 8V,P-CON
46 PS1-1 O Power supply IC SW1 control 1
Audio 8V,P-CON
47 PS1-2 O Power supply IC SW1 control 2 P-ANT
Power supply IC SW2 control 0
48 PS2-0 O ILL,FM,AM
Power supply IC SW2 control 1
49 PS2-1 O ILL,FM,AM
50 BEEP BEEP H:Light on L:Light off
51 DSI O DSI control When panel attached,output L
When panel detached,flashing at the panel (H/L)
FIX model is output L
52 NC O Not used (out put L)
53 NC O Not used (out put L)
54 LOE/LIM SW I CD mechanism down&limit detection H:Chucking detection L:Normal
55 MO SW O CD mechanism loading motor control output H:Loading,Eject,Break L:Play
56 LO/EJ I/O CD mechanism loading/Eject switching terminal H:Eject L:Loading
57 M-STOP O Stop output to the CD mechanism H:Play L:Stop
58 M-RST O Reset output to the CD mechanism H:Normal L:CD mechanism reset
59 M-MUTE I Mute input from the CD mechanism H:mute off L:mute on
60 RESET Reset input from the System microcomputer
61 REMO I Remote control input
62 R-CLK I RDS clock input Except RDS model : output L
H:Changer detection
63 CH-REQC I Request input from the changer (new 5L) L:Request
Except Changer model : output L
64 LOS SW I CD mechanism loading's switch detected H:No disc
L:DISK IN(Loading Start)
65 KEY-REQ I Key input detected H:Key no input
(11pin L connected to the DATA L) L:Key input (edge key data reading start)
66 12EJE SW I 12cm disc detected L:12cm disc
67 Vss0
68 VDD1
69 X2 ∆3 MAIN X'tal oscillating circuit ∆3 4.19MHz X'tal connection
70 X1 ∆3 MAIN X'tal oscillating circuit ∆3 4.19MHz X'tal connection
71 IC TEST
72 XT2 Not used OPEN
73 XT1
74 VDD0 VDD Connected to VDD
75 AVREF0 A/D converter reference voltage control output,
connection to the 80pin AVCONT
76 S-METER I S-meter input
77 NOISE I FM noise detection input ∆3
2.5V or greater:NAVI MUTE
78 PHONE I 2way mute 1.0V or less:TEL MUTE
Except phone mute model : output L
79 NC O Not used (out put L)
80 AVCONT O A/D converter standard voltage control output H:During A/D converter active
same timing with PON
BA4911 SW1 Power supply IC output
PS1-2 PS1-1 PS1-0 A8V P-CON P-ANT
L L L STANBY
LL
(H)H(L)ON OFF OFF
L H H ON ON OFF
H H H ONONON
BA4911 SW2 Power supply IC output
PS2-1 PS2-0 ILLUMI FM AM
L L STANBY
L(H)H(L)ON ON OFF
H H ON OFF ON

KDC-1023/1023S/122/122S
MICROCOMPUTER'S TERMINAL DESCRIPTION
6
● MECHANISM MICROCOMPUTER MN6627771KP (X32 : IC2)
Pin No. Name I/O Description Processing Operation
1 TVD O Traverse driver output (PWM output)
2 SPL O Spindle motor drive output (PWM output)
3 PC O Spindle motor ON output L:ON H:OFF (default )
4 PWM O multi-purpose PWM output It's possible to setup the TOSF2
5 TBAL O Tracking balance adjust output (PWM output)
6 FBAL O Focus balance adjust output (PWM output)
7 NRFDET I RF detection signal input L:detected
8 OFT I Off-track signal input H:detected
9 BDO I Drop out signal input H:detected
10 LDON O Laser on signal output H:ON When command FO on,LDON is H
11 DSLB O DSL balance output
12 DVDD1 - Power supply for digital circuit
13 DVSS1 - Ground lines for digital circuit
14 AVSS2 - Ground lines for analog circuit For DSL,PLL and AD
15 DSLF I/O Loop filter terminal for DSL The bias of ARF output terminal in one
16 ARF I RF signal input
17 RFSW I When DSL circuit,constant switch terminal
18 PLLF I/O Loop filter terminal for PLL
19 PLLF2 I/O Loop filter characteristic switching terminal for PLL
20 IREF I Standard voltage input terminal
21 RFENV I RF envelope signal input Analog input
22 TRCRS I Track cross signal input Analog input
23 TE I Tracking error signal input Analog input
24 FE I Focusing error signal input Analog input
25 AVDD2 - Power supply for analog circuit For DSL,PLL and AD
26 AVSS1 - Ground lines for analog circuit For audio output (Lch and Rch in one)
27 OUTR O Rch audio output
28 AVDD1 - Power supply for analog circuit For audio output (Lch and Rch in one)
29 OUTL O Lch audio output
30 DVSS3 - Ground lines for digital circuit
31 CSEL I Oscillation frequency specification terminal H:33.8488MHz L:16.9344MHz
32 NC O Not used
33 ASEL I Audio output polarity switching terminal L:Reverse H:Non reverse
34 MSEL0 I Destination type selection port (set 2bit) Order "MSEL 0" and "MSEL 1" Set up
35 MSEL1 I Destination type selection port (set 2bit) Order "MSEL 0" and "MSEL 1" Set up
36 ICRST O Reset control terminal for external DAC
37 BCLK O Bit clock output for serial data
38 LRCK O L/R identification signal output
39 SRDATA O Sirial data output
40 VREFP I A/D converter standard power supply input
41 HOT I Temperature protection detection terminal (AD input) Over C5(h):on
42 8EJE_SW I 8cm disc eject stop detection terminal H:Stop
43 12EJE/SDET_SW I Judge the 8cm or 12cm disc 12cm disc stop detection terminal
44 LOE/LIM_SW I Pick-up inside detected Loading end detection terminal
45 PCK O PLL extracted clock output,etc
46 EFM O EFM signal output,etc
47 SENSE O Optics servo status signal output,etc
48 CLVS O Spindle servo phase synchronous signal output,etc L:Normal operation H:Luff servo
49 DEMPH O Dephase detection signal output,etc H:on
50 DVDD2 - Power supply for digital circuit
51 X1 I Main clock input terminal

KDC-1023/1023S/122/122S
MICROCOMPUTER'S TERMINAL DESCRIPTION
7
Pin No. Name I/O Description Processing Operation
52 X2 O Main clock output terminal
53 DVSS2 - Ground lines for digital circuit
54 XSUB1 I When external DAC,external clock input terminal
55 XSUB2 O
56 TEST1 I Test port 1 Normal operation is H fixed
57 TEST2 I Test port 2 Normal operation is H fixed
58 NC O Not used
59 VER/HOR O Put length or breadth switching motor terminal H:Put length L:Put breadth
60 DRV_MUTE O Driver mute control terminal L:MUTE ON H:MUTE OFF
61 /MUTE_L O Audio Lch MUTE output L:MUTE
62 /MUTE_R O Audio Rch MUTE output L:MUTE
63 /RST I LSI reset input terminal H:Normal L:Reset
64 OCD_CLK I When OCD connected, clock input
65 /MSTOP I Standby detection terminal H:Normal L:Mecha stop
66 DATA I/O I2C bus data line (communication line with system computer) At that time serial writer connected
67 SBIO I When connected to serial writer,data input terminal
68 /CLK I/O I2C bus clock line (communication line with system computer) At that time serial writer connected
69 TX O Digital audio interface signal output
70 EQCNT O RF EQ switching terminal L:x2 times H:x1 times
71 XSEL I During the external DAC connection MCLK external input (H:input)
72 MCNT I CD mecha Loading/Eject control ON/OFF L:OFF (HOST control) H:mechanism control
73 P-ON O Audio and servo origin power control terminal L:power on H:power off
74 MOTOR O Loading/Eject control switching terminal At that time LO/EJ is "H"
75 LO/EJ O Loading/Eject control terminal or output L When 72pin (P82) is "L",output "L"
76 CD-RW O CD-RW control terminal H:CD-RW L:normal
77 LDCNT O LD control terminal Operation is same LDON as timing
78 DVDD3 - Power supply for digital circuit
79 FOD O Focus driver output (PWM output)
80 TRD O Tracking driver output (PWM output)
TYPE2 TYPE1 TYPE0 MODEL NAME
L L L KDC-2024SA/SYA, 2024SG/SYG
uPD780058GC499 L L H KDC-2022, 2022V,202MR
L H L RY-391CD, RX-491CD
L H H KDC-4023, 2023, 3023
L L H KDC-122, 122S
uPD780058GC501 L H H KDC-1023, 1023S
H L H KDC-222, 222S
L L L KDC-3024G/YG, 307G/YG
uPD780058GC502 L H H KDC-3023R
H L L KDC-3024A/YA, 307A/YA
H L H KDC-4024/Y/V/YV
uPD780058GC503 L L L KDC-2094YA/YG
H: R135 R137 R139
L: R136 R138 R140
System mi-com Destination type list

KDC-1023/1023S/122/122S
ADJUSTMENT
8
1. IC10 (TDA7513) -The Tuner adjustment method
•When IC10 and its circumference are fixed, according to the
following order, it readjusts if needed.
•The adjustment item changes with parts to exchange. Please
refer to "Parts vs Adjustment item table".
1-1. VCO Coil Adjustment -- Adjustment of Tunning Voltage
Voltage Check Point : Vt-Check Land
(PWB Side_B, around D506)
Adjustment Coil : L507 (VCO Coil)
The adjustment method : VCO coil is turned and adjusted
according to the following tables.
M : AM Adjustment
For Your Information : The frequency of SET is only set up by
Pre-Set-Key in case this adjustment
①The appearance and the coil with which S-METER DC voltage
serves as the maximum are turned and adjusted
in the above-mentioned SG input.
➁By the above-mentioned adjustment method, same adjustment
is performed to both sides (1st&2nd MIX Coil).
TYPE Mode freq. Voltage Fig
E/M AM 1611kHz 5.5 ± 0.1(V) (C)
K AM 1700kHz 5.8 ± 0.1(V) (C)
J FM 90.0MHz 5.6 ± 0.1(V) (C)
W (Wide Band) FM 108.0MHz 7.2 ± 0.1(V) (C)
1-2. Adjustment of 1st & 2nd-MIX Coil
Voltage Check Point : S_METER-Check Land
(PWB Side_B, around W572)
Adjustment Coil : 1stIFT = L508 / 2ndIFT = L509
Setting of Signal Generator : Refer to the following tables
TYPE MODE freq. Mod. ANT Input Fig
K AM 1000kHz OFF 35dBuEMF (B),(C)
E,M,J,W AM 999kHz OFF 35dBuEMF (B),(C)
①The appearance and the coil with which S-METER DC voltage
serves as the maximum are turned and adjusted
in the above-mentioned SG input.
➁By the above-mentioned adjustment method, same adjustment
is performed to both sides (ANT&RF Coil).
1-3. Adjustment of FM_ANT&RF Coil
Voltage Check Point : S_METER-Check Land (PWB
Side_B, around W572)
Adjustment Coil : ANT_Coil = L505
RF_Coil = L506
Setting of Signal Generator : Refer to the following tables.
TYPE MODE freq. Mod. ANT Input Fig
E/M FM 87.5MHz OFF 5 or 11dBuEMF (A),(C)
K FM 87.9MHz OFF 5 or 11dBuEMF (A),(C)
J FM 76.0MHz OFF 5 or 11dBuEMF (A),(C)
W (Wide Band) FM 65.0MHz OFF 5 or 11dBuEMF (A),(C)
1-4. Adjustment of STEREO (adjustment of 456k-VCO)
Adjust in TEST_MODE
•How to enter the test mode
While pressing on [ FM ] and [ PRESET 6 ] keys, reset the
unit.
•Adjustment method
Complete on condition that show "ALL OFF" when pressing
on [ PRESET 1 ] and [ PRESET 6 ] keys.
(Writing adjustment valve to the EEPROM.)
Effect of adjustment is in cofirmation of adjustment status at
[ PRESET 4 ] key.
•Display of [ PRESET 4 ]
Adjustment "OK" : 14seg model "E2P OK" 7seg model "EPO"
Adjustment "NG" : 14seg model "E2P ERR" 7seg model "EPE"
•Releasing the test mode
Reset mode only.
ACC off, Power off, Power down and Remove the panel
mode is not releasing.
[Fig.3]
(UNDER VIEW)
[Fig.2]
[Fig.1]
(OVER VIEW)
(REAR VIEW)
(TUNER ANT)
(A)
(B)
S-METER
Check Land
IC10
Vt
Check Land
FM-SG
AM-SG
L509
L508
L507
L506
L505
(C)DC Voltmeter

KDC-1023/1023S/122/122S
9
ADJUSTMENT
2.IC10 (TDA7513) Replacement-Parts vs Adjustment Item Table
•When the parts in the following tables are exchanged, please readjust according to a table.
•When other parts are exchanged, please perform only a check of operation. There is no necessity for readjustment.
Replacement parts Adjustment Item
Ref ANT
Parts Name Number TYPE Parts Number VCOVt 1st MIX 2nd MIX Coil RF Coil Stereo
IC10 ALL TDA7513 ™™™™™™
EEP-ROM M24C01-WMN6T
IC12 ALL BR24C01AF-W ™™™™™™
S-24CS02AFJ-TB
Antenna Coil J L31-0966-05
L505 E,K,M L31-0967-05 ™
W (Wide Band) L31-0968-05
RF Coil J L31-0969-05
L506 E,K,M L31-0970-05 ™
W (Wide Band) L31-0971-05
VCO Coil J L32-0932-05
L507 E,K,M L32-0933-05 ™™™™™
W (Wide Band) L32-0934-05
1st MIX Coil L508 ALL L30-0770-05 ™
2nd MIX Coil L509 ALL L30-0771-05 ™
Variable Capacitance Diodes
D504 J,E,K,M KV1720S ™™™™™
W (Wide Band) KV1735S
Variable Capacitance Diodes
D505 J,E,K,M KV1720S ™™™™™
W (Wide Band) KV1735S
Variable Capacitance Diodes
D506 J,E,K,M KV1720S ™™™™™
W (Wide Band) KV1735S
X'tal X501 ALL L77-2077-05
✽The "™" mark shows that the adjustment is need.

ABCDE
1
2
3
4
5
6
7
R37 R36
R53
C41
C54
R41 C42
R39
C47
CP1
120
60 61
80
40
21
41
X1
CP2
C46
C50
C73
14
85C74
C69
C62
R50
C70
R42
C48
C15
R9
R10 C14
C10
C44
R40 C43
C31
C33
R49
C75C76
R31
R46R47
C71C72
C36
R85
R83
R81
C61
R82
R84
R86
R88
R87
D3
S1
IC2
IC4
S4
S3
S2
X32-5380-00 (J74-1485-12)
EB
Q6
PC BOARD (COMPONENT SIDE VIEW)
10 Refer to the schematic diagram for the values of resistors and capacitors.
Ref. No address
IC2 3B
IC4 5B
Q6 2C
X32-5380-00

11
Refer to the schematic diagram for the values of resistors and capacitors.
FGHIJ
1
2
3
4
5
6
7
C1
R4
R72
C2
D2
IC3
X32-5380-00 (J74-1485-12)
EB
Q2
Q1
C16
R3
C3
R12
R13
R1
R5 C5
R6R7
R43 R44
C7
C6 C8
C12
R45
CP5
C40
C32
C101
C102
R93R94
C100
R2
TE
VR A
BC
LD
PD
TRK IN
TRK OUT
FCS UP
FCS DOWN
D.GND
SLED OUT
/LOAD
/MUTER
/MRST
LO/EJ
/MUTEL
/MSTOP
MOTOR
S.7.5V S.GND
LOE/LIM
A.+8V
A.GND
DRVMUTE
Rch
Lch
SPDL+
SPDL-
SPL
SBIO
TVD
TRD
FOD
P54 P53 P52 P51 P50
D.OUT PON
VREF2
GND
GCTL
NRFDET
RW
LDCNT
PWM
FBAL
TBAL
FE B/TE
VDET
VREF
LDON A/TE
BDO
OFT
D/ARF
TRCRS
REFNV
LOS
DATA
12EJE
/CLK
8EJE
SLED IN
/EJECT
BU.5V
VCC
E
F
IOP+
IOP- VREF ARF RF GND
R11
R15
1
116
22
1
115
3016
32 17
16
C11
C9
C52
R38
C34
R100
CP3
R48
R33
R71
C49
R89
C38
R34
R32
C37 R51
C51
C77
R91
R92
C78
R90
R52
C17 C18
CP4 R35
C39
R14
C13
R8
D1
CN1
IC1
EB
Q5
EB
Q3
CN2
EB
Q4
PC BOARD (FOIL SIDE VIEW)
Ref. No address Ref. No address Ref. No address
IC1 2H
IC3 5H
Q1 3G
Q2 3G
Q3 3G
Q4 5I
Q5 2H
X32-5380-00

12
KLMNO
1
2
3
4
5
6
7
C552
C564
C553
R564
W403
R10
R255
R130
C104
R127
R414
R128 R126
R129 C102
R131
CP1
R67
R108
R72
W410
R142
R132
R105
R103
R102
R144
C40
R58
R114
R139
R140
R115
R111R112
R110
R121
R107
R104
R264
R117 R258
R415
C404
C142
R353
W519
W532
W531
R201 C554
C568
R565
W418
C560
C548
R73
R31
R32
C30
W160
W162
W161
W530
W506
C558
R567
C590
W511
W402
C587
C589
W512
R541
C354
R582
C585
W510
R204
C583
W509
W505
R563
W534
C550
C545
C551
R581
R503
C509
R502
R525
W601
R522
C536
W414
W415
R506
C504
W504
C503
C506
W400
/W401
C528
W412
C524
C227
C549 C541
W517
R134
C105
R106
R123
W578
R133
C106
R125
CP3
C103
CP2 R122
R68
R69
R57
R71
C555
W157
W165
R113
R174
R119
R413
R136
R135
R137
R138
R118
R116
W501
R561
C556
C593
W417
R546
R545
R251/W405
W409/R260
R22
R11
R23 C21
R12
R257
R51 W158 R263
R261
R256
TH1
R412
R254/W406
W156
C538
C544
C537
C543
C513
C582
C588
C586
C592
R542
R205
C557
C356
C352/R173
C355
R566 R543
R544
C542
C546
R547
C581
C580
W508
C511 R505
W507
C515
C514 C510
R507
W411
R224
W516
R223
C526
R526
W533
R529/W524
W523
C535
R527
R523
C534
C531
W419
W500
C530
C529
R524
R521
C525
C516
R501
C533
C523
C502 W413
C522
W521 C226
14
85
1
20
21
40
41
60 61
80
1
22 2
1
115
142
21
7
14 8
18
169
1
20
21
40
41
60
61
80
12
34
C521
BE
1
2
1
3
2
EB
EBEB
BE
EB
EB
EB
BE
EB B
112
E
EB
EBE
BBE
SB GC
SD
GG
BEE
BEB
Q70
D102
Q101
Q50
Q10
Q252
Q253
Q201
Q502
Q102 D50
Q51
D11
D13
D107
D103
Q20
Q251
D268
D264
D267
Q40
D411
Q501
D506
Q503
Q224
Q223
D505 D504
D3
D501 D503
Q53
IC11
IC1
IC8
IC6
IC12
IC10
X25-9600-xx (J74-1465-12)
J1
CN1
WH1
D108
CN3
D201
D202
D261
D262
D263
D265
D401
D402
D403
D404
D405
D407
D408
D409
D410
D109
D110
D266
D40
D1
D10
J4
Q55
D101
D12
D14
D30
J2
J3
J5
D20
D70
D106
D251
D252
D253
P1
D51
L514
L511
C562
L516
L508
L510
C512
R143
C353
R171
L515
W404
L517
C561
C351
C505
C507
C508
C547
C563
C565
C584
C591
CF54
L509
W25
L4
L505
L506
L507
R227
R228
C204
C205
C401
C402
L501
L502
L503
L504
L512
L513
R164
R165
R166
R167
R168
R169
R170
R231
R232
R351
R352
R401
R402
R403
R404
R405
R406
R407
R408
R409
R410
R411
R528
W118
X2
X501
W53
W556
W559
W564
W106
W174
W576
W577
W109
W558 W557
W574
W566
W565
W562
W573
W570
W571
W553
W554
W555
W550
W520
W24
W569
W567
W552
W551
W575
W563
W568
W515
W572
CF51
CF52
CF53
C58
L2
C55
L101
R145
C1 L1
16 15
2 124 2
25 1 1576109
2 3 4 8 12 11 13
C101
C50
C51
C52
C53
C54
C56
C57
C63
C255
C256
C257
C600
R20
R25
R28
C258
C223
15
C224
C251
C252
C253
C254
C403
R21
R30
R50
R101
R163
R172
R252/W407
R253/W408
R259
X1
W54
W66
W79
W82
W108
W119
W85
W112
W81
W137
W58 W44
W55 W37
W91
W47
W87
W120
W61
W50
W86
W90
W93
W124
W114
W84
W129
W51
W57
W60
W45
W48
W40
W42
W43
W67
W115
W102
W133
W122
W136
EB
W135
W113
W125
W134
W111
W104
W103
W88
W89
W70
W74
W65
W68
W80
W75
W52
W49
W96
W92
W101 W71
W100
W72
W95
W121
W73
W77
W76
W59
W138
W105
W62
W64
W78
W130
W128
W131
W94
W99
W116
W117
W98
W97
W110
W127
W107
W63
W175
R141
IC4
IC7
PC BOARD (FOIL SIDE VIEW)
Refer to the schematic diagram for the values of resistors and capacitors.
Ref. No address Ref. No address Ref. No address
IC1 5N
IC4 4K
IC7 6M
IC8 4M
IC10 2N
IC11 6N
IC12 3N
Q10 5M
Q20 5M
Q40 3L
Q50 4M
Q51 6L
Q53 5M
Q55 6L
Q70 5L
Q101 6O
Q223 2L
Q224 2L
Q251 4L
Q501 2M
Q502 2L
X25-9600-xx

13
Refer to the schematic diagram for the values of resistors and capacitors.
PQRST
1
2
3
4
5
6
7
KI4
KI2
KI3
KS2
KS3
KI5
KI1
KS4
KS5
39
1
D10
D20
D6
D4
D5
D3
D2
D1
D8
D18
D13D12
D9
D11
D17
D7
D19
X16-1460-13/2370-11 (J74-1285-32)
ED1
IC2
C7
R20
R17
R10
R7
R8
C4
C1
C2
C3
R16
C6
C9
R19
R18
R3
R5
R12
R4
R2
C5
R13
R22
R21
R14
R15
14
21
15
1
16
48
33
49 64
32 17
KS5
SW 5V
ESDGND
LED+B
DATAL REMO
PAN-SW
D-GND
L-CE
L-CLK
DATAS
ILL GND
PAN 5V
RES
KI4
KI2
KI3 KI5
KS2
KS3
KI1 KS4
Q1
J1
D22
IC1
X16-1460-13/2370-11 (J74-1285-32)
VOL
1 2
4 3
SRC
ATT
123456
RST CLK TI AUD
AM FM
EB
PC BOARD
(
COMPONENT SIDE VIEW )( FOIL SIDE VIEW )
Ref. No address
IC1 5S
IC2 2Q
Q1 6S
X16-1460-13
/2370-11

ABCDE
1
2
3
4
5
6
7
10K
4.7K
22K
22K
2.50V
4.90V
2.50V
0V
4.80V
2.40V
0V
4.80V
4.80V
0V
4.80V
4.80V 3.0pp
5.0pp
0V
4.80V
4.80V
4.80V
4.90V
0V
4.90V
0-4.9V
0V
0-4.9V
0V
0V
0V
0.15V
4.80V
4.90V
0V
7.80V
0V
0V
3.84V
0V
3.84V
7.80V
0V
4.90V
4.90V
4.90V
4.90V
4.90V
4.90V
4.90V
4.90V
0V
0-4.9V
IC2
CD PLAYER UNIT (X32-5380-00)
S2
∗S4
S1
CN2
Q4
D2
Q3
Q2
LchRch
A.GNDA+5V
BU+5V
D.GND
A.GND
12EJE SW
LOS SW
8EJE SW
SWITICH
DOWN&LIMIT
S3
to MAIN UNIT
A.8V
SW
D.5V
SW
BULT-IN MI-COM
CD SIGNAL PROCESS
A.+8V
10K
S.GND 2
LOE/LIM SW 1
S.7.5V
MOTOR
LO/EJ
A.GND
5
3
4
Rch
Lch
6
7
8
BU+5V 15
A.+8V
MSTOP
MRST
MUTE L
MUTE R
D.GND
9
10
11
12
13
14
8EJE SW
DATA
LOS SW
12EJE SW
18
NC 16
17
CLK 19
20
21
100x4
CP2
100x2
CP1
D.OUT 22
R72
200
100
C75
6800P
R87 330
C69
2200P
R85
R44
330
C71
2200P
R81
6800P
C76
100
R88
2200P
C70
330
R86
C72
2200P
330
R82
1K
DEMPH/TRCRSO/TEXTCRC
SENSE/RESY/FLAG/STOUT
EFM/NFLOCK/CLDCK/STCK
PCK/NTLOCK/FCLK/STLD
DATA
MSEL1
MSTOP OCD CLK RST IFZR IFZL
100Kx4
R43
CP5
61
63
62
65
64
66
R100 C100
16.934MHz
X1
1000P10
R42
4.7K
49
DRV MUTE
VER/HOR
TEST2
TEST1
XSUB2
XSUB1
DVSS2
DVDD3
NC
60
59
58
57
56
52
55
54
53
X2
51
50
X1
CLVS/VDET/CRC
LOE/LIM(SW4)
12EJE/SDET(SW3)
8EJE(SW2)
HOT
48
47
46
45
44
43
42
41
LRCK
SRDATA
VREFP 40
38 39
ICRST
BCLK 36
37 35
MOTOR P-ON MCNT XSEL EQCNT CLK SBIO
SBIO
73 70 68
67
TX
69
71
72
74
75
C36
2.2 28
31
NC
ASEL
MSEL0 33
34 32
OUTL
DVSS3
CSEL 30
29
AVDD2
AVSS1
OUTR
AVDD1 27
25 26
C101
1000P 1000P
C102
C34 0.1
100K
R93
C33
0.1 C32 0.1
4
L
R
5
65
63
62
61
66
68
29
27
L
R
27
29
61
62
63 66 68 65
0.1
C47
0.1
C46
Q3,4
DTC114YUA
DTC143TUA
UN5111
2SA1036K
2SA1362
2SA1576A
2SC4081
DTA114EUA
DTA124EUA
DTC124EUA
DAN202U
DA204U
MA142WK
UN5212
3SK126 BR24C01AF-W MCH6101

FGHIJ
1
2
3
4
5
6
7
0.17V
3.81V
4.90V
2.47V
1.44V
3.38V
2.50V
4.16V
0V
3.94V
0V
0V
0V
3.06V
2.50V 2.50V
2.50V
2.50V
2.50V
2.69V
2.69V
2.69V
0.95pp
0.91pp
2.50V
2.35V
2.35V
2.40V
2.35V
2.35V
2.45V
4.90V
0V
7.80V
3.50V
3.90V
3.84V
3.84V 3.81V
3.81V
3.60V
3.60V
7.80V
0V
0V
0V
2.35V
2.35V
2.35V
2.35V
2.35V
7.80V
2.35V
4.80V
4.80V
2.45V
0V
0.87pp
1.25V
1.70V
0V
0-4.8V
0V
2.40V
4.90V
2.50V
0V
4.80V
2.40V
2.40V
2.40V
2.45V
0V
0V
0.15V
0V
4.80V
2.40V
2.40V
4.80V
2.50V
2.00V
0V
0V
0.17V
2.69V
2.69V
2.69V
2.69V
2.50V
2.50V
3.84V
3.81V
3.81V
3.84V
IC3
C2
IC1
DTA143XUA:Q4
D1
D3
D2
Q6
Q5
DA204U
MA8051-L
DAN202U
2SA1576A
2SC4081
:
:
:
:
:
Q3
Q2
Q1
IC3
IC2
IC1
DTC124EUA or
MN6627771KP
2SA1362(Y)
MCH6101
BA5824FP
AN22002AA
:
:
:
:
:
:
Q6 Q5
D3
D1
CN1
Q1
M
M
LOADING & SLED
MOTOR
SPINDLE
MOTOR
DM2 (X92- )
DM1 (X92- )
S.GND
S.7.5V
SPDL
FCS
TRK SLED
D.GND
D.5V
Vref
GND LINE
SIGNAL LINE
B LINE
to PICKUP
APC
VREF
BUFFER
4CH BTL
DRIVER
-COM
L PROCESSOR
RF AMPLIFIER
ADAPTED FOR CD-RW
UN5212
1K
924
CNT
LDIN
OUTSL
INSL-
INSL+
OUT3
IN3-
PREVCC
IN2- BIAS
1
2
6
IN1- IN1+ OUT2
4
3 5
MUTE PREGND OUT1
7
8
C49
1500P C38 0.01
R48
10K
18K 10K
R34R33
2.2K
R47
C51
1500P
R71
13K
27 28 26 25
C37
0.01
R51
10K
R50
3.9K
R31
27K
10K
R32
VO3+
VO3-
VO4+
VO4-
POW VCC2
POW GND2
VO2- VCC1 GND1
11
10
12
VO1+ VO1-
14
13
VO2+
22 23 21 19 20 18 17
VREF GND
R45
10K
R43
TRD FOD DVDD2 LDCNT CD-RW LO/EJ MOTOR P-ON MCNT XSEL
73
71
72
74
76 75 78
77
79 80
TRCRS
28
AVDD2
AVSS1
OUTR
AVDD1 27
25 26
TE FE 23
24 22
12
FBAL
TVD
SPL
PC
PWM
TBAL
1
2
3
4
5
NRFDET
OFT
BDO
LDON
DSLB
DVDD1
9
6
7
8
10
11
PLLF2
DVSS1
AVSS2
DSLF
ARF
RFSW
PLLF
13
14
15
16
17
18
IREF
RFENV 21
19
20
C48
6800P
C50
6800P
1000P
R38
220K
C31
0.1
C40
0.015
C41
C39
0.01
39K
R35
R53
4.7K
10K
R36
C10
0.033
R9
3.9K
4700P
C14
C15
2200P
B/TE
17
R41
47K
C3
1
16
FCS-
TRK-
TRK+
FCS+
GND
C+D
GND
VCC
TBAL FBAL GCTL FEOUT FEN TEN TEOUT TEBPF VDET
C52
0.1
R52
4.7K
B
GCTL 6.2K
R37
24
VDET
C13
270P
R8
27K
19 18 20
22
21
23
C16
330P
R11
33K
27
25 26
F E
28
D
30 29
32 C
31
A
R15
4.7K
IOP-IOP+ R4
10
R1
91
12
16
15
14
13
A9
11
10 F B
8
7
6
E
PD
5
4
3
VR
LD
2
1VC
C6
39P
VCC
9
COFTR
OFTR
NRFDET
14 15 13
3TOUT
CBDO
BDO
11 12 10 6
CAGC
ARF
CEA 8
7
RFN
RFOUT
RFIN
5 3 4
C12
3300P
C11
6800P
PD
LD 1
2
C7
0.1 3.3K
R6
RF
R5
3.3K
C1
10u6.3
R14
100K
C2
2.2
17
18
12
11
SPDL-
SPDL+
X32-5380-00
X32-5380-01
S4
YES
NO
27
A/TE
TRCRS
FE
C45 0.1
C44 1000P
C43 2200P
R39 100K
820
R40 0.047 C42
RFENV
BDO OFT
NRFDET
9
7
8
4.7Kx4
CP4
1.8Kx4
CP3
16
TRK OUT
TRK IN
13
14
FCS UP
FCS DOWN
15
16 SLED IN
/EJECT
/LOAD
SLED OUT
11
12 17
18
5 4
1
80
1
2
79
80
27K
R46
39K
R49
8 7 9
R7 3.6K
2P
C5
ARF
1
C8
4700P
C9
R13
240K
C18 0.1 C17 0.1
R3 5.6K R2 5.6K
6
5
4
F
E B
CD
A
6
5
100K
R10
F
A
B
E
CD
23
22
24
24
23
22
4
79
2
13
15
14
16
2.2
C61
Q5,6
IC1
15
29 30
R12
910K
POW POW
+
CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be
carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
•DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual
instruments or/and units.
!

KLMNO
1
2
3
4
5
6
7
22K
22K
4.7K 4.7K
5.0V
0V
5.0V
0V
0V
0V
2.4V
2.4V
0V
5.0V
5.0V
0V
5.0V
0V
8.0V
0V
3.8V
3.2V
8.0V
0.7V
0V
0V
0V
2.4V
0.8V
2.5V
2.5V
8.0V
0V
2.5V
0V
4.2VAM
PW-ON 0V 2.8V
FM 0V 2.0V
3.4V
60mV
0V
5.0V 2.0V
3.2V
PW-ON
AM
AM
AM
3.2V
3.4V
0V
0V
4.1V
2.4V
0V
2.0V
3.3V
FM
AM
0V
AM
FM
4.2V
FM
AM
0V
3.3V
0V
2.0VFM 0V
4.0V
8.0V
8.0V
8.0V
0V
3.5V
8.0V
4.2V
4.2V 7.3V
0V 0V
4.9V
IC6
(X25-9600-XX)
∗IC4
DECODER
RDS
∗CN3
BUFFER
Q503
MPX BUFFER
Q201
NOISE ∗ EE
T
∗Q40
D503
∗D506
∗D504
∗ C
J1
D3 D405
D407
D403 D410
∗D505
AMPLIFIRE
Q502
FM RF
AMPLIFIRE
D501
AM RF Q501
D409
D411
D408
D402
D401
DRIVER
MUTE
D268
J4
J4 TOP VIEW ∗ DREAR
D404
Q224Q223
MUTE
J5
C545
6800P
∗C537 8
R351 2.2K
R352 2.2K
C354
10u6.3
∗C558
0.01
∗C557
0.01
C353
10u6.3
1
14
C351
15
2
∗R173
C352
330P
1K
5.6K
C551
0.01
C548 0.022
12
W530
EXTRES
7
FILOUT
ARI
8
GND
0.01
6
9
FSEL
TM
VCC
10
11 C550
0.033
2200P
C549
L515
51
77
16
RDDA
OSCIN
OSCOUT
RDCL
3
OSEL
MPX
VREF
5
4
10P
X2
4.332MHz
13 C355
10P
T57 14
15 C356
2.2K
QUAL
2
1
R353
62
C600
100u10
C555
1000P
W534
0.01
L517
4.7uH
C546
R542 4.7K
∗W403 ∗W402
R205 4.7K
1K
R541
1K
2.2K 20
R204 W512 13
61
57
W531 20
17
18
R547 22
14
15
W523
10
11
12
8
∗C538
26 25
24
23
22
21
C547
10u10
R546
L514
4.7uH
33K
R545
4.3K
LFOUT
OSCVCC
20
19
PLLVCC PLLGND LFIN LFREF LFHC
28
27
C5
C5
0.10.250MHz
1
X501
DIGGND XTALD XTALG
FMAGCVOUT
16
VCOB
VCOE
OSCGND
18
17
FMANTADJ
FMRFADJ
15
14
FMMIX1IN2
FMAGC1OUT
FMAGCIN
13
12
11
FMMIX1IN1
RFGND
10
9
3
14
∗C526
10P
R501 6.8K
∗L507
∗L505
R543
W507
W505
11
R522
∗C523
∗C521
∗C524
∗R521
∗W400
C525
0.01
∗C522
GND
100K
L4
C516
L501
6.8uH
45
C534
0.01
C583 0.1
L511
4.7uH
4.7uH
10.700MHz
W511
W508
∗W401
∗C528
R524
100K
C543
68P
R544
C542
22P 18
∗C541
17
C544
15P
6P
W500
100K
R527
W504
W415
R525
330
C533
0.01
C513 0.01
C515 1
7
6
3C514 0.01
R528
100K 15 C512
4.7u16
W533
100K
C531
1
C535
2P
∗C530
R523
100K
∗C536
∗L506
10
∗W524
330
∗R529 13
∗R526 12
8L510
4.7uH
C511
0.01
AMMIX2IN2
FMAMP2OUT
FMIFAMP2IN
FMIFAMPREF
FMIFAMP1OUT
FMIFAMP1IN
FMNAGCIN
3
5
ANAGC1VOUT
ANAGC1OUT
ANAGC1TC
7
6
AMMIX1IN-
AMMIX1IN+
4
TUNGND
VREF5V
2
1
70 ∗CF53
0.1
C582
IF1GND
MIX1OUT2
MIX1OUT1
IFVCC 79
80 76 77 78
TUNVCC
73 74 75 71 72
∗C581
L508
R581
C580
0.01
1K
∗CF52
L5
AMMIX2IN1 68
69 10.700MHz
C591
33u10
∗C529
2P
33u10
W521
C506
0.1
C507
L503
1mH
R505
C505
4.7u16
C503
0.1
C502
1500P
R502
2.2K
R506
1M
C508
22u10
R503
2.2K
7
L512
4.7uH
W601 L513
1K
6
R507 1K
C510
68P
100P
C509
C504
33uH
L502 0.01
46
44
L504
100uH 3
2
1
4.7K
10.700MHz
CF51
0.01
C585
12
RL
RR
FL
FR
W509
∗R253
∗W408
∗R252
∗W407
C253
0.22u50
∗W161 C252
0.22u50 4.7K
RR-
DATA H
10
DATA C
11
2
3
4
R403 4.7
R406 4.7K R405 4.7K
R404 100
19
1
25
C403
100u10 A GND
CH CON
MUTE
REQ H
BU
D GND
9
13
REQ C
CLK
R411 100
R401 10
R410 100
R409 4.7K R408 4.7K
R402 10
R407 4.7K
8
C402
1u50
17
16
C401
1u50
18
63
DATA H
DATA C
Lch
RST
Rch
128
REQ C
CLK
5
4
3
117 13
10
9
6
51
6
A GND
12 8
57
RST MUTE
34
REQ H
1
2
∗W160
C224
10u16
C223
10u16
W156
R224
R223
270
W516
270
4 2
OUT2- TAB
1
STBY
PGND2
R232
R231
100
R227
30K R228 30K
100
∗C227
680P ∗C228 680P
C255
1u50
41
BUPRchLch CHCON D GND
+
+
+
+
+
+
+
+ +
+ +
+
+ +
∗WH1

PQRST
10K
47K
0V
3.9V
3.4V0V
0V
3.2V
8.0V
8.0V
0V
3.0V
3.9V
3.9V
3.9V
3.4V 4.8V
0V
2.2-4.5V3.0V
3.0V
3.0V
3.0V
3.0V
3.0V
5.0V
0V
0.6-4.1V
3.0V
3.0V
3.0V
3.0V
3.0V
3.9V
5.0V
0
0V
0V
5.0V
0V
5.0V 5.0V
0V
0V
5.0V 0V
5.0V
0-4.0V
0V
5.0V
5.0V
5.0V
0V
0V
5.0V 5
TUNER
CHANGE
AM
FM
PW-ON
AM
0V
FM 2.6V
0V
AM
2.0VFM 0V
AM
FM
5.0V
0V
3.7V
FM
1.4V
1.2V
0V
4.2V
4.2V
8.0V
0V
7.3V
0V
7.3V
7.4V
0V
7.2V
7.2V
7.3V
7.3V
7.2V
0V
4.9V
14.4V
0V
7.2V
7.2V
7.2V
5.0V
0V
3.0V
1.9V
5V
0V
4.0VFM 0V
0V
5V
0V
4.2V
2.4V
0V
5V
4.4V
0V
5.0V 0V
5.0V 0V
0V
5.0V
0V
5.0V
5.0V
0V
0V
0V
5.0V
5.0V
0V
5.0V
0V or 0V
5.0V
0V
0V
5.0V
0V
5.0V 5.0V
0V or 5.0V
7.4V
7.4V
0V 0V
0V
5.0V
0V
3.4V or
14.4V
7.3V
0V
4.1V
0V
5.0V
0V
5.0V
0V
0V
0V
5V
5V
0V
5.0V
0V
0V
IC10
IC8
IC11
∗IC1
IC12
E-VOL.
TUNER &
D201D202
CONTROL
u-COM
SYSTEM
D263
D265 D268
D264
D262
D266
∗Q251
D40
D101
RESET
POWER
SMETERRC &
MPTHTC SW ∗Q253
ON
∗Q252
AMPLIFIRE
POWER
D267
D261
∗ F
LOGIC
MUTE
D253
D251
D252
E2P-ROM
D20
Q70
DETECTOR
A. C. C
Q20
DETECTOR
B. U.
Q10
D70
DETECTOR
SURGE
D10
FMMUTETC
39
L516
4.7uH
L515
4.7uH
100P
C560
38
37
36 35
34
33
32
31
30 29 28
27
C554 0.1
C552
C593
0.010.250MHz
∗C553
1
X501
C562
10u10
C561
1u50
RR
RL
FR
C556
1000P
DEVTC TUNQUALITY DIGVCC DIGGND XTALD XTALG ISSTC OUTFR OUTRL OUTRR APVCC APGND VREF3V
SCL
SDA
17
16
13
12
11
∗R413 100K
4.194MHz
2.2K
45
40
FL
W501
ACRIN OUTFL
ACROUT
ACLIN
ACLOUT
IN2L
IN2COM
42
41
45
44
43
44 ∗W578
77
IN2R
IN1R
IN1COM C204
46
46
47 47
2.2u50
C565
47u10
48
TUNERIN
IN1L
TUNEROUT
49 49
C205
2.2u50
R561
C564
0.47
50
51
∗C568
2.7K
R133 12K
∗R134
∗C106
R132
2.2K
51 C105
15P
X1
77
∗R102
1
2
4
3
2
1
R104
R103
1K
R106 100K
1K
5
6
1K
9 8
7
6 5
11
10
N.C
AVCONT
80
AVSS N.C 8EJE SW PANEL
PHONE
NOISE
79
78
N.C AVREF1 L-CE L-RST L-DATAL ACL ADA
17
R107 2.2K R121 2.2K
R105 470
14
15
14
13
12
16 15
CH-DATAC L-CLK L-DATAS R-QUAL R-DATA CH-DATAH
VDD0
S-METER
AVREF0
76
75
IC
XT1
XT2
74
73
72
X1
71
70
19
17
15 13
11
9
7
5 3
C583 0.1
W511
FMDEMREF
FMDEM AMIF2AMP REF
AMIF2AMPIN
AMAGC2TC
AMMIX2OUT
AMMIX2IN2
FMAMP2OUT
C584
10u10
L509
AMMIX2IN1 68
69 67
DEMGND
SMETERC
64 65 66 61 62 63
10.700MHz
4.7K
W509
GND OUT IN
3
2
1
450kHz
CF54
C588
0.47
C586
∗C587
W510
0.1
R253
W408
R252
W407
4.7K
RR-
FR-
RR+
FR+
FL-
FL+
∗C256
0.22u50 0.22u50
14 12 10 8 6 4 2
OUT2- TAB
1
OUT1- OUT2+
STBY
PGND2
SVR
PGND1
VCC1
SGND IN1 OUT1+ OUT3- OUT3+ IN3
IN4
IN2
∗R256
∗W406 ∗W405
∗R254
1K
4.7K
∗R251
4.7K
C255
1u50
41
W162
C254
C251
40
25 23
21
R126
100K
59
57
58 56 55
54
50
C103 0.1
∗C589
58
1K
54
SDA
SCL
C563
0.47u50
R565 100K
52
R566
1K
53
SCL
SDA
SD
SMETER
QUALITY
AUDIOMUTE
R567
W517
55 55
W519
56
57
C104
15P
R131
6.8K
R130 2.2K
66
57
∗R414 100K
R129 2.2K
64
61
63 62
RDSMUTE
MPTHTC 59
60
59
Q252,253
0.1
VOUT
R128
2.2M
61
R127
2.2K
VSS
60
NC
4
3VDD 1
2
R123
1K
KEY-REQ
68
X2
VDD1
69
Vss0
CD-SW2
67
66
CD-SW1
65
64
CH-REQC
R-CLK
63
62
50 58
M-MUTE
RESET
REMO
61
59 60
CD-SW3
MOSW
LO/EJ
M-STOP
M-RST
55 56 57
DSI
N.C N.C
51 52 53 54
CP3
1Kx2
R125 1K
R122 100
2.2Kx2
CP2
43
ACC-DET
PS1-0
PS1-2
PS2-0
47
PS2-1
BEEP
48 49
PS1-1
44 45 46
B.U-DET
R69 10K R68 10K
∗R67 10K
CP1
10Kx2
0.01
∗C590
0.1
∗C592
100u6.3
C102
0.01
C101
12
RL-
RL+
∗C404
0.01
8
1
R415
100K 2
1
5
4
3
VCC
L101
4.7uH
C40 0.01
GND
6
7
100K 100K
R23 R12
R563
ACL
∗R260
750
∗W409
2
24 22 20 18 16
ACGND
OUT4- OUT4+ HSD PGND3
VCC2
PGND4
MUTE
C258
1u50
∗R258
R201 47K
13 14 10 9 11 12
4
3
5
SDA
R564
10K
SCL 6
GND
A2
A1
ADA
∗R263
∗R261
C257
1u50
50 39
470
TH1
R257
6.2K
W158 1
35
WP
VCC 7
8
A0 R71
8
SDA
10K
SCL
C21
0.01
R22
10K
R11
10K
R72
36K
R73
100K
82K
R30
3.3K
1/2W
R21
33K
R20 R10
30K
+
+
+
+
+
+
+
+
+
+
+
+

UVWXY
1
2
3
4
5
6
7
47K
10K
0V
0V
5.0V
5.0V
0V
5.0V
0V
5.0V
0V or 5.0V
5.0V
0V
5.0V
5.0V
0V or 5.0V
0V
0V
5.0V
0V
or 5.0V 0V
5.0V
5.0V
0V
5.0V
0V
10.3V
5.0V
1
VDD 3 4
1
7
3
5
VDD
5.0V
14.3V
8.1V
7.9V
14.0V
8.1V
14.0V
0V
KDC-122/122S/1023/1023S
KDC-122/122S/1023/1023S (1/2)
A
IC7
DC CORD
(E30-4784-05)
C
∗D108
P1
X16-
∗D109 ∗D106
J1
2/2
PANEL5V
SW
∗D110
∗Q102
D103 ∗J3
S2V20∗A or
Q55
D51
∗ B
D102
Q50
5V
SW
MECHA
DRIVER
DSI
Q101
to
D504-506
D501,503
407-410
D106,108,109,403-405,
D40,101,251-253
D10,20,70,201,202,401,
D110
∗Q53
CN1
D411
D50
D1
D103
D51
D50
D12,14
D11,13
402
D3
D1
HZS12A2:MA3062WA
∗
:RN739F:
:
(X25-9600-XX)
BA
MA4082(N)-L
MA4062-L:
DA204U:
:DAN202U:1SS133:
MA4068(N)-M
AM01Z:D1F60:
:
IMSA-6801
1N5393G-M6
:
:
Q51
D30
MUTE
TEL
J2
Q223,224
Q10,20,70,101,201,503
∗D12
AVR
SERVO
CONTROL
AVR
SERVO Q102
Q253
Q502
Q501
Q252
Q251
∗D11
Q55
Q51,53
Q50
Q40
∗D14
∗D13
(MULTI AVR)
IC11
IC12
IC10
IC8
IC7
SUPPLY
POWER IC1
IC4
IC6
DTA114YUA:
UMA1N
3SK126:CPH5905:
:
DTC114YUA
DTC143TUA
UMG4N:
:
:
2SA1036K
2SD2375:UMC2N:
:DTA124EUA:2SC4081:
PST3435UL:
S-24CS02AFJ-TB
M24C01-WMN6T or
BR24C01AF-W or:
HD74HC27FP
BA4911-V4
TDA7513:
:
:TDA7479AD
∗
∗
:
:
:
GND LINE
SIGNAL LINE
B LINE
FED
∗ A
NO
NO
100u50
8P
538
C537,
8P
TDA7386
TDA7560
142,168,170,171,173,412-414,529
R31,32,102,111,112,134,135,140,
YES
W405-
NO
409
YES
YES
D13,
VIOL/BLKGRY/BLK
TUNER-TYPE1
∗R412 100K
R110 4.7K
18 19
17
16
∗R413 100K
25
TYPE REF
17
15
16 20 19 18
CH-DATAC R-QUAL CH-REQH CH-DATAH
N.C
N.C CH-CLK
AFS
N.C 21
22
N.C
CH-CON
23
24
25
28
SD
N.C
26
27
TYPE2 29
TYPE0
TYPE1 30
31
NO YES0-23
ESD-G15
59
R58
470
R164 470
∗R170 1K
∗R171 47
R172 1K
1
61
12
SW5V
PANEL14
13
REMO
L-DATAS
12
11
R166 1K
R165 470
6
13 L-CLK
L-CE
10
9
∗W404
∗R136 47K
55
∗R138 47K
∗R135 47K
∗R140 47K
∗R137 47K
∗R139 47K
R113 47K
2W
C142
0.1
R169 1K
∗R168 1K
R167 100
60
11
5
RST6
L-DATAL
L-RES
8
7
LED+B
LAMP+B
5
4
R163 10
ILL-GND
PAN5V
D-GND
3
2
1
0-23
UNIT
0-13
No. 403,410,578
NO YES
524
W160,161,400-
NO
W404,
10220
UNIT
0-23
0-13
No. R138,251- R258 R261
254,256,260
YES 100 430
YESYES
UNIT
0-23
0-13
No. R25, R28,136,
YES
139,521
NO
67,137
L31-0970-05 L32-0933-05
0-23
0-13
No.
UNIT
L31-0970-05
L506
L32-0933-05
L507
UPD780058GC501
R57
1.5K
∗R32
47K 27uH
3300u16
41
Vss1 32
33
TUNER-TYPE0 34
DATA
MUTE 35
CLK
36
37
43
ACC-DET
PS1-0
PS1-1
44 45 46
P-STBY
SW5V
B.U-DET
39
N.C
P-MUTE
38
41 42
SVR 40
R69 10K R68 10K
R264 47K R255 33K
W532
KDC-122 (K)
SERBOGND21
R101
D GND9
R117
R114 47K
∗R111 0.1
∗R112 0.1
2W
36
35
R116 10K
1K
R119 47K
37
R118 10K
1K
R115
37 MSCLK4
R143 4.7K
R141 4.7K
66
64
SW22D OUT1
SW13
W165
4.7K
∗R142
236 MSDA MECHDET
5
6
BU 5V
N.C7
8
39
47K
R174R108
2.2K ADJ
40
R259 22K
240
49 Lch15
R144 100K
58
59
57 M RST12
M MUTE
N.C
10
11
M STOP
AUDIO+B
13
14
56 47
55 LO/EJ18
GND
Rch
16
17
MO SW
SERBO+B
19
20
4P5P YES0-13
0-23
0-13
No.
UNIT
UPD780058GC501
IC1 IC4
L72-0781-05 YESNO
0-23
0-13
UNIT
No.
L72-0781-05
CF52,
53
NONO
D11,
12
CN3
YES5P 4P
NO0-13
0-23
UNIT
No. 589
C528,
C526 C530,
536,541
NO 33u50
KDC-122S (K)
KDC-1023S (M)
KDC-1023 (M)
UNIT
No. 557,558,590,592
C227,228,404,529, C256
0-23
0-13
SW2
C56
10u50
R145
2.2K
54 SW322
12 ILLUM
10u25
R51
47K
R50
5.6K
C63
22u16
C55
220u16 9
11
10 SW1
VBU
C57
C1
C58
100u16
BU5V
8
MODEL
NAME UNIT
No.
FRONT L
REAR Rch+
R71
C30
∗R31
22K
0.01
82K
R30
10K
REAR Rch-
FRONT Rch+
FRONT Rch-
REAR Lch-
REAR Lch+
FRONT Lch+
FRONT Lch-
FL-
RL+
FL+
FR+
RL-
FR-
RR-
7513
4286
10u25
∗W410
C54
10u16
C53
10u16
C52
10u16
∗R25
4.7K
AM+B
L2 VCC
7
AUDIO+B
6
∗C51
FM+B
5
P-ANT
4
3
4.7K
RR+
∗R28
140uH
L1
GND
FUSE
13 15119
ACC
P-CON
P-ANT
GND
1210 14 16
B.U.
C50
10u25
P-CON
2
GND
1
REAR L
GRN GRN/BLKWHT/BLK
WHT 8
7
9
10
NO
WH1
NO
5.6K4.3K
R263 R526
180K 5.6K
NO
NO
NOYESYES NO
NO
252,253
Q102,
NOYES
Q53Q40
YES
Q251
E58-0880-05 L31-0967-05
0.012P820P0.01
E58-0880-05
J3
L31-0967-05
L505
KV1720SNO
KV1720S
D504-506
D106,
108-110
NO
14
820P0.01 0.012P
0.1 33P 100P27P
C568C553 C587C581
0.1 33P 100P27P
1500P
1500P
C523C521 C522 C524
YES
NO
YES
YES
YES
NO
C106C51
ACC
GND
ANT. CONT
P. CONT
FRONT R
OUT
REAR R
YEL VIOL
BLU/WHT
BLU
GRY
BLK
RED 314
4 5
13
12
611
2
1
15 16 BU
+
+ +
+
+
+
+
+
+
+
+
CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out
(exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
•DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments
or/and units.
!

ZAA AB AC AD
1
2
3
4
5
6
7
0V
0V 5V
5.0V
0V
5.0V
3.3V
1.7V
5V
0V
0V
5V
1.7V
0V
0V
5V
0V
14
S12
S10
S8 S9
15 16
S11
17 18
S14
S13
19 20
S15
21 22
S16
S17
23 24 25 26 27 28 29 30
S27
S19
S37
S39 S40
31 32
S38
33 34
S35 S36
35 36
S18
37 38
S23
S21
S20
39
S22
S25
S24
S26 S29 S28 S30
S31
S32
S33
1 2 6 4 3 5 7 8 10 9 11 13 12
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 1 2 6 4 3 5 7 8 10 9 11 13 12
S5 S6
S7
S34
C2
C1
C3
ILL-GND
D-GND
SW5V
LAMP+B
LED+B
L-DATAS
L-CLK
L-CE
L-DATAL
PAN 5V
RST
PANEL-
ESD-GND
KI1
KI2
KI4
KI3
C3 0.047
C1
C2 0.047
R8 56K
0.01
R10 4.7
4.7K
79
80
78
77
80
79
77
78
R2 470
R4 470
R5 1K
R3 470
KS5
S25
S5 S6
S7
S8 S9
S10
S11
S12
S13 S14 S15 S16
S17
S18
S19
S20
S21
S22
S23
S24
S26
S27
S28
S29
S30
S31
S32
S33
S34
S35 S36
S37
S38 S39 S40
KS4
KS3
KS2
C3
C2
C1
∗R20
510
R18
510
R17
R16
510
R14
330
R15
330
KI1
KI2
KI3
KI4
KI5
1
2
3
45
6
7
8
9
10
11
12
13
14
15
KI5
∗R19
0.01
C9
220
R21 220 R22
1000P
+B
+B
+5V
+5V
TP35
TP32
TP31
TP30
TP29
TP27
TP28
TP26
TP22
TP21
TP5
TP4
TP3
TP1
TP2
TP9 TP8 TP6TP7
TP15
TP14
TP13
TP12
TP11
C4
R7
1 2
OUT
VCC
4
3GND2
GND1
R12 1K
2.2
∗R13 47
IC2
+5V
+5V
TP33
TP24
TP34
∗C5
REMO
∗C6 0.01
∗C7 0.01
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5 6
7
8 9
10
11
12
13
14
15 16
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
KS5
KS4
KS3
KS2
N.C.
COM3
COM2
COM1
S40 S39 S38
S37
S36 S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
KEY N.C. N.C. N.C. S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16
KS6
KI1
KI2
KI3
KI4
KI5
TEST
VDD
VDD2
VDD1
VSS
OSC
L-DATAL
L-CE
L-CLK
L-DATAS
SW
N.C
J1
Q1
∗D18
J3
X14-
1/2
KEY DETECT
SW
RST
∗D22
LCD DRIVER
∗D17
∗D19
S17
∗D7 ∗D8
∗D2 ∗D1 ∗D3
∗D6 ∗D5 ∗D4
∗D20 ∗D9
∗D12 ∗D13
∗D11
∗D10
REMOTE
SENSOR
∗ A
(BOTTOM VIEW)
10K
10K
ED1 (SEGMENT)
SWITCH UNIT (X16-1460-13/2370-11)
A
ED1 (COMMON)
IC2
IC1
ED1 (COMMON)ED1 (SEGMENT)
(B38-1080/1081/1126-05) : KDC-4023/202MR/2024SA/2024SG/2024SYA/2024SYG/2094YA/2094YG/2022/2022V/2023/3023/RX-491CD/RY-391CD (B38-10

AE AF AG AH AI
1
2
3
4
5
6
7
S14
S29
1 2S30 9 6 3 4 5 7 8 11 10 12 14 13 15
S27
S28
S17
S20 S18
S22
S23 S26 S25
S24
S21
S19
22 19 17 16 18 20 21 24 23 25 27 26 28
S15 S13
S12
S16
S31
S38 S36 S33 S35
S32
S34
S40
S37
32 30 29 31 33 35 34 37 36 38 39
1 2 9 6 3 4 5 7 8 11 10 12 14 13 15 22 19 17 16 18 20 21 24 23 25 27 26 28 32 30 29 31 33 35 34
37
36
38 39
S7
S10 S39
S11
S8 S5 S9 S6
C2
C1
C3
KI1
KI2
KI3
KI4
KI5
KS2
KS3
KS4
KS5
RX-491CD (J)
MODEL NAME
YES
TP15
TP14
TP13
TP12
TP11
TP16 TP17 TP18
TP19
+B
No.
X16-1460-01
UNIT D1-13,20
(GREEN)
B30-1533-05
D17,18
B30-1633-05
D19
YES
C6,
7
390
R19,
20
B30-1564-05 or
(BLUE)
B30-1533-05B30-1533-05
X16-1460-03
RY-391CD (J) NO NO (GREEN) B30-1633-05
(GREEN) 510
X16-1460-11
KDC-4023 (M) YES YES (GREEN)
B30-1533-05 B30-1633-05 390
X16-1460-12
KDC-202MR (K) B30-1533-05
YES NO B30-1533-05
(GREEN) B30-1633-05 (GREEN) 510
X16-1460-13 B30-1533-05 NO NO B30-1533-05
(GREEN) B30-1633-05 (GREEN) 510
KDC-1023S (M)
KDC-1023 (M)
KDC-2024SYG (E)
KDC-2094YG (E)
KDC-2024SG (E) B30-1533-05
(GREEN)
B30-1533-05
(GREEN)
NO B30-1633-05 510NOX16-1460-14
B30-1567-05
X16-1460-15
KDC-2022V (K) 390YESYES (RED) B30-1633-05
X16-1460-16
KDC-2094YA (E)
KDC-2024SYA (E)
KDC-2024SA (E) 510
B30-1567-05
(RED)
NONO (RED) B30-1633-05
B30-1567-05
X16-1460-20
KDC-2023 (M) 510NOYES (GREEN) B30-1633-05
(GREEN)
B30-1533-05 B30-1533-05
X16-1460-21
KDC-3023 (M) 510NOYES (RED) B30-1641-05
(RED)
B30-1567-05 B30-1567-05
X16-2370-10
KDC-2022 (K) 390
B30-1567-05
YESYES (RED) B30-1633-05
(BLUE)
B30-1564-05
X16-2370-11
KDC-122S (K)
KDC-122 (K) 510
B30-1567-05
NONO (RED) B30-1633-05
(RED)
B30-1567-05
X16-2370-12
KDC-222S (K)
KDC-222 (K) 510
B30-1567-05
NONO (RED) B30-1633-05
B30-1564-05
(BLUE)
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
NO
YES
C5 R13
YES
NO
YES
YES
YES
YES
NO
YES
YES
YES
NO
D22
YES
YES
YES
NO
YES
YES
YES
YES
NO
YES
YES
YES
NO
YES
YES
B30-1642-05
B30-1564-05 or
B30-1642-05
(BLUE)
(BLUE)
B30-1642-05
B30-1564-05 or
: ∗ D1-13,20
Q1 : DTA114EUA
IC1 : LC75853NE
VOL+
VOL-
SRC
AUD
TI
CLK
ATT
1
2
43
5
6FM
AM
: MA3062WA
: ∗
D22
D19
S3
S4
S5
S6
S2
S1
S7
S8
S21
S20
S19
S18
S9
S10
S11
S12
S16
S15
S14 S13
S26
S22
S27
S23
S25
S24
B LINE
GND LINE
: RS-171IC2 D17,18 : ∗
A
ED1 : ∗
ED1 (COMMON)ED1 (SEGMENT)
(B38-1079-05) : KDC-1023/1023S/122/122S/222/222S
KDC-2022/V/202MR/4023 (2/2)
KDC-122/S/1023/S (2/2)
KDC-222/S/2023/3023/2024SA/SG/SYA/SYG/2094YA/YG (2/2)
RX-491CD/RY-391CD (2/2)
CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out
(exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
•DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments
or/and units.
!