Kenwood KDC-9023R User manual

KDC-9023R
KDC-PSW9524
KDC-X969
SERVICE MANUAL © 2003-2 PRINTED IN JAPAN
B53-0031-00 (N)3379
CD RECEIVER
s
50 4W
DIGITAL AUDIO
COMPACT
s
50 4W
DIGITAL AUDIO
COMPACT
Panel assy
(A64-2975-01): KDC-X969
Escutcheon
(B07-3079-01)
Panel assy
(A64-2993-02):
KDC-X969
Panel assy
(A64-2982-01): KDC-9023R, (A64-2984-01):KDC-PSW9524
Panel assy
(A64-3002-02):
KDC-9023R/PSW9524
Escutcheon
(B07-3079-01)
CD mechanism extension cord : W05-0935-00
CD mechanism operation description is
not in this service manual.
Please, refer to service manual X92-
4030-0x (B51-7867-00).
Mounting hardware assy
(J21-9823-03) DC cord (ISO)
(E30-4942-05)
: KDC-9023R/PSW9524
Remote controller assy
(RC-505)
(A70-2040-05)
: KDC-X969
DC cord
(E30-6062-05)
: KDC-X969
Lever
(D10-4674-04) x 2
Plastic cabinet assy
(A02-2731-03)
Remote controller assy
(RC-420)
(A70-2026-05)
: KDC-9023R/PSW9524
Screw set
(N99-1723-05)
: KDC-X969/9023RScrew set
(N99-1734-05)
Antenna adaptor
(T90-0552-05)
: KDC-9023R/PSW9524
Size AA battery
(Not supplied)
Escutcheon
(B07-3079-01)
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

3
HOWTOTHE PANEL MECHANISM ASSEMBLY
1. Fixed the position of operation side
(Fixed the horizontal position when the panel opened)
qThe mounting hardware (281) of operation side is rota-
tion (A) into the stop position with close side.
wAs figure (B) line is just above and the gear (230) at-
tached to pin.
B
A
Rotary to the
stop position
281
230
This line attached just above
Fig. B
(This figure from look at B arrow)
C
284
702
SW
D
E
F
702
SW
284
2. The slider assembly insert to bottom chassis
qThe bracket for display panel (284) is leave down, in-
sert to the chassis (702). (C)
wThe slider assembly insert to the chassis (702) after
that shift (D) direction.
eThe bracket for display panel (284) is raised (E) direc-
tion.
rKeep the raising conditions, the slider assembly is shift
(F) direction.
(Note) Do not bend the knob of chassis detection switch
when the slider assembly insert.
KDC-9023R
/PSW9524/X969
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KDC-9023R
/PSW9524/X969
3
BLOCK DIAGRAM
TUNER
CD
CH
UNIT
MECHA
PANEL
TDF UNIT
SWITCH UNIT
DISPLAY
(X16-208)
(X16-210)
(X16-217)
(X25-964)
BUFFER
RDS
DECODER
BUFFER
REMO
RESET SW
KEY MATRIX
FL
u-COM
MPX
E-VOL
&
ACC DET
TEL MUTE
B.U DET
SYSTEM
DRIVER
MUTE
POWER
IC
ACC
TEL MUTE
BACK UP
SP OUT (FL)
RESET
KEY ILL
IC14
IC2
IC1
IC4
IC8
IC9
Q303,304
AM+B
AGC
E'S+
PRE MUTE
PRE MUTE
PRE MUTE
PRE OUT
(FRONT)
PRE OUT
(REAR)
(NF)
PRE OUT
AUX IN
OP AMP
OP AMP
OP AMP
SP OUT (FR)
SP OUT (RL)
SP OUT (RR)
EXT AMP
DIMMER DIMMER
EXT.AMP.CON
ANT-CON ANT CON
P-CON P CON
WIRED REMO/
OPEL DISP I/F
FOCUS
SW
WOW
IC5
IC20
IC6
IC9
IC13
IC12
IC11
Q207,208
Q205,206
Q203,204
BU5V
SW 5V
SW 14V
5V
SERVO
FL+B
SW REG
A8V
PANEL
Q1,2
Q3,601
Q502,503
Q4,5
Q6-8
Q9,602
BU5V
SW5V
PANEL5V
SW14V
DC/DC A8V
SERVO
CD4.7V
IC16
MOTOR
DRDR
MOTOR
IC15
DC/DC
ROTARY
ENCODER
IC7
LEVEL
SHIFT LEVEL SHIFT
IC8
u-COM
IC11 IC2
IC3
MASK
ROM
SRAM
MEMORY
FLASH
IC4
BPF
PANEL
SW5V
IC63.3V
SW3.3V
Q5
FL+B
Q4
FL3.3V
Q2,3
EEPROM
EEP5V
Q501
IC1
Q23,24
Q26
Q25
IC18
Q27
Q29
IC10
Q6,10
Q11-14
IC19
S-METER
AUDIO OUT
SERVO
8V
BU5V
CD4.7V
BACK UP
FM
AM
CD
QUAL
CH
PANEL5
KEY
BU5V
8V
SW5V
8V 8V
SW5V
BPF
8V
8V
9V
9V
9V
8V
9V
SW5V
FL+B
FAC
AGC
8V
8V
BU5V
BU5V
BU5V
SERVO
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

4
KDC-9023R
/PSW9524/X969
BLOCK DIAGRAM
16.93MHz
PICK-UP
(X32-5440-00) BOARD
MOTHER
EF
A
BC
TR COIL
FO COIL
APC 1 CHIP IC
SERVO
MP3 DECODER
RF AMP
IC11
Q4
16.93MHz
CLOCK
X1
D. GND
IC4
PROCESSOR
S. GND
LPF
IC2
IC13
DRAM
D. GND
IC7
u-COM
IC6
A3.3 REG
8V SW
Q1
Q3SW
Q5SW
Q2SW
IC6
D3.3V
D. GND
A. GND
D. GND
S3
S4
S1
S2
D. GND
(0-01)
ONLY
A. GND
A. GND
MOTOR
DRIVER
MOTOR
SPINDLE
LOADING &
SLED MOTOR
24.57MHz
CLOCK
X3
IC9
WMA DECODER
D. GND
IC5
2.5V
REG
REG
CLOCK
16.00MHz
X2
7
VREF 30
9PON
PON
Lch
Rch
A. GND
A. +8V
D. GND
BU. +5V
D4.7V
LOE/LIM SW
8EJE SW
12EJE SW
LOS SW
S7.5V
LO/EJ
MOTOR
S. GND
916
SW5V
● SUB-CIRCUIT UNIT (X16-2080-10)
Ref. No. Application/Function Operation/Condition/Compatibility
IC1 E2PROM For security
● SUB-CIRCUIT UNIT (X16-2100-10)
Ref. No. Application/Function Operation/Condition/Compatibility
IC2 ROM IC
IC3 SRAM IC
IC4 Flash ROM IC For Display customize
IC5 Logic IC For Write and Read to IC3
IC6 3.3V regulator The power supply for 3.3V
IC7 Buffer IC It is change into 3.3V from 5V
IC8 Buffer IC It is change into 5V from 3.3V
IC9 Remote control IC
IC10 Spectrum analyzer IC
IC11 Panel µ-com
Q1 3.3V regulator While PAN 5V is applied, 3.3V regulator outputs +3.3V.
COMPONENTS DESCRIPTION
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KDC-9023R
/PSW9524/X969
5
Ref. No. Application/Function Operation/Condition/Compatibility
Q2, 3 FL+B SW FL+B (VDD2) is turned on when Q3’s base level goes “H”
Q4 FL3.3V SW FL+3.3V (VDD1) is turned on when Q4’s base level goes“H”
Q5 3.3V SW SW3.3V is turned on when Q5’s base level goes“H”
Q6, 10 REMO ON SW The power supply of IC9, 10 is turned on when Q10’s base level goes“L”
Q7 FL BLK SW VFD is turned on when Q7’s base level goes “H”
Q8 Blue LED SW Blue LED is turned on when Q8’s base level goes “H”
● SWITCH UNIT (X16-2170-10)
Ref. No. Application/Function Operation/Condition/Compatibility
Q1 DSI (Disabled System Indicator) DSI blinks when the base goes “H/L”
Q2 KEY illumination SW (GREEN) ON (KEY illumination green) when the base goes “H”
Q3 KEY illumination SW (RED) ON (KEY illumination red) when the base goes “H”
● ELECTRIC UNIT (X25-964x-xx)
Ref. No. Application/Function Operation/Condition/Compatibility
IC1 System µ-com
IC2 E-vol & N.C. & MPX
IC3 Regulator IC for A8V
IC4 Power IC
IC5 System E’s IC
IC6 Audio IC (WOW)
IC7 -9V AVR (DC/DC IC) for 4.5V Pre-out
IC8 Reset IC
IC9 Logic IC for muting
IC10 Buffer for S.A
IC11~13 AMP for 4.5V Pre-out
IC14 RDS dcoder IC
IC15, 16 Motor driver IC for panel mechanism
IC17 ROM IC For ROM correction.
IC18 P-CON IC
IC19 Swiching regulator IC for CD4.7V
IC20 Analog SW for swiching IC6’focus
Q1, 2 B.U.5V AVR While BU is applied, BU5V AVR outputs +5V.
Q3, 601 SW5V When Q601’base goes Hi, SW5V outputs +5V.
Q4, 5 SW14V When Q5’base goes Hi, SW14V outputs 14V.
Q6~8 AUDIO 8V AVR When Q6’base goes Hi, A8V AVR outputs 8.3V.
Q9, 602 SERVO+B AVR When Q602’base goes Hi, S+B AVR outputs 7.5V.
Q11~14 ILL&DC/DC+B AVR When Q11’base goes Hi, AVR outputs 9.2V.
Q15, 16 AUDIO 10.5V AVR When Q16’base goes Hi, AVR outputs 10.5V.
Q17~19 Pre-Amp -9V AVR Q18 and 19 works as a differential amplifier, Q17 works as a driver and -9.1V is supplied
to OP amp for Pre-out.
COMPONENTS DESCRIPTION
w w w . x i a o y u 1 6 3 . c o m
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3
7
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1 5 1 5
0 9 9
2
8 9
4 2
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T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299