70%
MINI HiFi COMPONENT SYSTEM
RXD-303/303E/353/353E/503/503E/553/553E/
SERVICE MANUAL
(XD-303~A73)**
© 2000-3/B51-5605-00 (K/K) 3633
DISC
1
DISC
2
DISC
3
STANDBY
TIMER
DISPLAY/DEMO
MENU
SELECT
BACK
ENTER
SOUND
CONTROL
TUNING
MODE
MU
LTI CONTROL
REC/ARM
REVERSE
MODE
TAPE EQ.
PHONES
DISC SKIP
OPEN/
CLOSE
EX
.B
A
S
S
PUSH
OPEN
PUSH
OPEN
DECK
PLAY
A
DECK
REC/PLAY
B
VOLUME
CONTROL
Panel ass'y *
(A60-)
Knob *
(K29-)
Panel(CD) *
(A29-)
Front glass *
(B10-)
Knob *
(K29-)
Phone jack
(E11-0280-05)
553-GR/553E-GR/653/653E/A33/A53/A53-GR
* Refer to parts list on page 33.
In compliance with Federal Regulations, following are repro-
ductions of labels on, or inside the product relating to laser
product safety.
**Refer to page 2 if you want to know system configuration.
KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM
Unplug the power cord from the power outlet then,
while holding the ENTER key depressed, plug the
power cord again.
÷ Please note that resetting the microcomputer clears the
stored contents and returns to the factory set condition.
Operation to reset
The microcomputer may fall into malfunction (impossibility
to operate, erroneous display, etc.) when the power cord is
unplugged while power is ON or due to an external factor.
In this case, execute the following procedure to reset the
microcomputer and return it to normal condition.
(Main unit only)
ENTER
SYSTEM
MAIN UNIT
DESTINATION
SPEAKER
SP CORD PSRTS No
XD-303
RXD-303
KE
LS-N303
E30-5829-08
XD-303E
RXD-303E
E1
LS-N303
E30-5829-08
XD-353
RXD-353
YMXTEH
LS-N353
E30-5829-08
XD-353E
RXD-353E
E1
LS-N353
E30-5829-08
XD-353(M3)
RXD-353
M
LS-N353(M3)
E30-5829-08
XD-353(M5)
RXD-353(M5)
M5
LS-N353(M3)
E30-5829-08
XD-503
RXD-503
KPE
LS-N503
E30-5829-08
XD-503E
RXD-503E
E1
LS-N503
E30-5829-08
XD-553
RXD-553
YMXTE
LS-N553
E30-5829-08
XD-553E
RXD-553E
E1
LS-N553
E30-5829-08
XD-553(M3)
RXD-553
M
LS-N553(M3)
E30-5829-08
XD-553(M5)
RXD-553(M5)
M5
LS-N553(M3)
E30-5829-08
XD-553-GR
RXD-553-GR
ET1
LS-N553-GR
E30-5829-08
XD-553E-GR
RXD-553E-GR
E1
LS-N553-GR
E30-5829-08
XD-653
RXD-653
TEX
LS-N653
E30-5475-05
XD-653 E
RXD-653 E
E1
LS-N653
E30-5475-05
XD-753
RXD-553
MX
LS-N753
E30-5838-08
XD-753(M3)
RXD-553
M
LS-N753(M3)
E30-5838-08
XD-753(M5)
RXD-553(M5)
M5
LS-N753(M3)
E30-5838-08
XD-A33
RXD-A33
KP
LS-N353
E30-5829-08
XD-A53
RXD-A53
KP
LS-N553
E30-5829-08
XD-A73
RXD-A53
KP
LS-N753
E30-5838-08
FM indoor antenna (1)
AM loop antenna (1)
Speaker cords (2)
(XD-653
Refer to system configuration.
only)
Remote
(T90-0836-05)
(T90-0852-05)
(A70-1337-05): RC-553....KPMXYK1P1M5
(A70-1338-05): RC-553E....TEE1T1
Battery cover (A09-1151-08)
control unit (1)
Use to adapt the plug on the power
cord to the shape of the wall outlet.
(Accessory only for regions where
use is necessary.)
AC
(E03-0115-05)
plug adaptor (1)
Provided in the speaker package
Batteries (R6/AA) (2)
RXD-303/353/503/553/653/A33/A53
2
CONTENTS / ACCESSORIES / CAUTIONS
CONTENTS / ACCESSORIES / CAUTIONS ............. 2
EXTERNAL VIEW .......................................................3
DISASSEMBLY FOR REPAIR....................................3
BLOCK DIAGRAM ......................................................4
CIRCUIT DESCRIPTION ............................................5
ADJUSTMENT ..........................................................10
WIRING DIAGRAM ...................................................12
PARTS DESCRIPTIONS ..........................................13
PC BOARD .............................................................. 14
SCHEMATIC DIAGRAM .......................................... 19
EXPLODED VIEW ....................................................31
PARTS LIST..............................................................33
SPECIFICATIONS ....................................................43
Contents
Accessories
SYSTEM CONFIGURATION
Cautions
AC 220-
240V~
AC 110-
120V~
GND
FM
75
AM
ANTENNA
+
-
FRONT
SPEAKERS
(6-16 )
R
L
L
R
DVD/VIDEO INPUT
+
-
SURROUND
SPEAKERS
(8-16 )
R
L
ON
OFF
SURROUND
Lock terminal board
(E70-0052-05)
Cover
(F07-1692-01)
Metallic cabinet *
(A01-)
Slide switch
(S62-0001-05)
Pin jack
(E63-0095-05)
Lock terminal board
(E70-0124-05)
Slide switch
(S62-0077-05)
Lock terminal board
(E70-0123-05)
RXD-303/353/503/553/653/A33/A53
3
EXTERNAL VIEW
DISASSEMBLY FOR REPAIR
BOTTOM SIDE
HOW to open the tray if not comes out.
(1) Turn the friction arm counterclockwise
using a screw driver and the like.
(2) Pull out the tray frontwards by hand
when the tray comes just out.
RXD-303/353/503/553/653/A33/A53
4
BLOCK
DIAGRAM
CLK
PLL-CLK
PLL-CE
PLL-DO
SD
ST
PLL-DATA
S-LEVEL
DE-EMPH
R/P
LATCH
Lch-OUT
Rch-OUT
+12V
REC
PB
AMP
AMP
5V
(600mV)
DECK (580mV)
CD (1.2V)
Lch-OUT
Rch-OUT
D
OUT
XCOUT
XCIN
(16.9344MHz)
DATA
POWER
RELA
Y
XIN
XOUT
XCIN
XCOUT
(10MHz)
(32.768KHz)
MAIN CLOCK
TIMMER CLOCK
MPX
CLK
DATA
u-COM
TUNER
+
+
C1,C2
A,B
CANCEL
BEA
T
OUT
IN
REC-MUTE
A/B
AEQ
BEQ
SPEANA
DA
T
A/CLK
RDS
IC
PROTECTION
SP
RELA
Y
AT
T
MUTE
BEEP
+
TIMER
ST
ANDBY
5V
R/P
ERASE
SOUND
OSC
BIAS
BIAS TRAP
BA3126N
CXA1498S
K1
OTHER ch
H.P.
Rch
Lch
RF AMP
AN8806SB
PICKUP/
LOADING
DRIVER
CD DSP
MN662748
KEY
(X13)
TUNER PACK
FM75
ANT
B DECK
(X28)
DECK
MECHA
IC2
IC1
CN1
IC12
RDS
INPUT ATT.
M62498FP
IC11 M62498FP
MD/DVD IN
IC4
IC1
CD
MECHA
CDM-35
D.OUT
(OPTICAL)
MAIN u-COM
M30622MA-A42FP
(X07)
Q3,4
Q1,2
Q13,15
-10dB
MUTE
T1
K1
IC2
IC101
(X14)
AMP
GND
AM
J1
DEMODULATOR
J2
L.P.F.
LOUDNESS
INPUT SELECTOR
INPUT VOL.
MAIN VOL.
3BAND TONE
L/R
FRONT
SUV VOL.
SELECTOR
INPUT SELECTOR
/E.VOL.
A2
(X32)
P
HEAD SW
PLAY/REC
PLAY BACK
/REC EQ.
A DECK
14,16
IC3
J2
SPEAKERS
J1
(X14)
AMP
Q14,16
BASS REVISE
CIRCUIT
AC/DC
PROTECTION
MTX
MTX
J4
SLch
SRch
S1
ON
OFF
X1
X2
GND
IC5
5V
AVR
+V
-V
D51
GND
D52
GND
5V
AVR
-35V
AVR
12V
Q15
Q11
AVR
9V
Q13
5V
AVR
Q14
5V
AVR
X32,Q2
DECK
TUNER
LOADING DRIVER
PICKUP DRIVER
CD DSP.RF AMP
CONTROL IC
ELECTRIC VOL
-40V
MAIN u-COM
FIL
12V
MAIN
FIP
IC1
ED1
KEY1-3
D2
D3
BASS MID TRE
VOLUME
BASS BOOST
CANCEL CIR.
FIP
DRIVER
REMOCON
INTERFACE
ATT.
BACKUP
u-COM
Q13,
CN2
(T/E TYPE ONLY)
RXD-503/553/653
E/T TYPE
ONLY
EXCEPT FOR
K/P TYPE
RXD-653/653E
RXD-303/303E/353/353E
RXD-503/503E/553/553E/553-GR/553E-GR
RXD-A33/A53/A53-GR
RXD-303/353/503/553/653/A33/A53
5
CIRCUIT DESCRIPTION
1. Initialization
1-1 Setting of the Initial Conditions
While pressing the [ENTER] key, plug the AC cord into AC
wall outlet.
1-2 Initializing Operation
· A Microcomputer is initialized for start when the AC power
is turned on when pressing the [ENTER] key.
At that time, CD and cassette mechanisms are also initial-
ized.
· During the initial conditions, the display shows *INITIAL-
IZE* and after that it will be returned to standby condition.
1-3 Initial Items
(1) AMPLIFIER
· POWER ON/STANDBY
STANDBY
· VOLUME
14
· BALANCE
CENTER
· INPUT SELECTOR
TUNER
· SOURCE DIRECT
OFF
· MUTE
OFF
· AUTO POWER SAVE
OFF
· AUX(DVD/VIDEO) INPUT LEVEL
-3
· DISPLAY MODE
AUTO
· BEEP SOUND
ON
(2) TUNER
· BAND
FM
· FREQUENCY
LOWEST FREQUENCY
· AUTO/MONO
AUTO
· PRESET CHANNEL
" "ch
(3) CASSETTE DECK
· REVERSE MODE
REVERSE
· TAPE A/B
B
· TAPE DIRECTION
FORWARD
(4) AUX (DEV/VIDEO)
· DVD/VIDEO DISPLAY
DVD
(5) CLOCK
· CLOCK
0:00(E,E2,T)/12:00am(OTHER)
· Program Timer Recoding
ON TIME 0:00(E,E2,T)/12:00(OTHER)
OFF TIME 0:00(E,E2,T)/12:00(OTHER)
· Program Timer Play
ON TIME 0:00(E,E2,T)/12:00(OTHER)
OFF TIME 0:00(E,E2,T)/12:00(OTHER)
· Program on Mode
OFF
· SLEEP TIMER
OFF
(6) Equalizer
· Equalizer
OFF
· CUSTOM EQ.1~3
FLAT
· EX. BASS
ON
· 3D LEVEL
OFF
1-4 Mechanism Initialization
1-4-1 CD Mechanism
· If a mechanism error occurs *C ERR* is indicated on the
display.
1-4-2 DECK mechanism
· When the initial condition becomes NG for the third
time,decide the error.
The error condition is displayed as X ERR on the display.
1-4-3 Error display
· If both mechanism (CD/DECK) error occur, the display is
indicated as follows.
· CD & X ERR
Se t
Type
BAND
Receving Frequency
Range
Channel
Space
IF
RF
FM
87. 5MHz
108. 0MHz
100kHz
+10. 7MHz
25kHz
K, P
K1
AM
530kHz
1700 kHz
10kHz
+450 kHz
10kHz
FM
87. 5MHz
108. 0MHz
100kHz
+10. 7MHz
25kHz
M,Y(1)
K 2
AM
530kHz
1610kHz
10kHz
+ 450 kHz
10kHz
FM
87. 5MHz
108. 0MHz
50kHz
+10. 7MHz
25kHz
M,Y(2) , X
E1
AM
531kHz
1602kHz
9kHz
+450 kHz
9kHz
FM
87. 5MHz
108. 0MHz
50kHz
+10.7MHz
25kHz
E, E 2
E3
RDS
AM
531kHz
1602kHz
9kHz
+450 kHz
9kHz
FM
87. 5MHz
108. 0MHz
50kHz
+10. 7MHz
25kHz
MW
531kHz
1602kHz
9kHz
+450 kHz
9kHz
T
E4
RDS
LW
153kHz
7
2 9 kHz
9kHz
+450 kHz
9kHz
2. Destination List of Tuner