SERVICE MANUAL
DA
TA
CD STEREO SYSTEM
XR-EM20
S/M Code No. 09-028-454-3R2
K(S),EZ(S)
BASIC TAPE MECHANISM : CMAL5Z213A
BASIC CD MECHANISM : KSM-213RDM
XR-EM20
SPEAKER
SYSTEM
CX-LEM20
CD-CASSEIVER
SX-LEM20
REVISION
· This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-023-454-3T2).
-2-
SPECIFICATIONS ............................................................................................................................................................... 3
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ......................................................................4
ACCESSORIES PART LIST .............................................................................................................................................. 5
ELECTRICAL PARTS LIST ....................................................................................................................................... 6 ~ 17
CHIP RESISTOR PART CODE ....................................................................................................................................... 18
TRANSISTOR ILLUSTRATION ........................................................................................................................................ 19
SCHEMATIC DIAGRAM - 1/5 (MAIN) ............................................................................................................................... 20
WIRING - 1/7 (MAIN) <1 / 2> ............................................................................................................................................. 21
WIRING - 2/7 (MAIN) <2 / 2> ............................................................................................................................................. 22
SCHEMATIC DIAGRAM - 2/5 (FRONT / DECK) .............................................................................................................. 23
SCHEMATIC DIAGRAM - 3/5 (CD / DRIVE) .................................................................................................................... 24
WIRING - 3/7 (FRONT / CD) <1 / 2> ................................................................................................................................. 25
WIRING - 4/7 (FRONT / CD) <2 / 2> ................................................................................................................................. 26
SCHEMATIC DIAGRAM - 4/5 (PT) ................................................................................................................................... 27
WIRING - 5/7 (PT) .............................................................................................................................................................. 28
SCHEMATIC DIAGRAM - 5/5 (TUNER) ........................................................................................................................... 29
WIRING - 6/7 (TUNER) ...................................................................................................................................................... 30
WIRING - 7/7 (DECK) ........................................................................................................................................................ 31
IC BLOCK DIAGRAM ....................................................................................................................................................... 32
IC DESCRIPTION .................................................................................................................................................... 33 ~ 38
FL (HNA 08SS36T) GRID ASSIGNMENT / PIN CONNECTION / ANODE CONNECTION ....................................... 39
ADJUSTMENT (FRONT / DECK / TUNER / CD) ...................................................................................................... 40 ~ 47
VOLTAGE CHART .................................................................................................................................................... 48 ~ 52
CD TEST MODE .............................................................................................................................................................. 53
MECHANICAL EXPLODED VIEW .................................................................................................................................. 54
MECHANICAL PARTS LIST ............................................................................................................................................ 55
COLOR NAME TABLE ..................................................................................................................................................... 56
TAPE MECHANISM EXPLODED VIEW ........................................................................................................................ 57
TAPE MECHANISM PARTS LIST .................................................................................................................................. 58
OTHER PARTS LSIT ....................................................................................................................................................... 59
GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) .......................................................... 60
SPEAKER PARTS LIST (SX LEM20) .......................................................................................................................... 61
TABLE OF CONTENTS - 1/1
-3-
SPECIFICATIONS - 1/1
MAIN UNIT CX-LEM20
TUNER
FM tuning range
87.5 MHz to 108 MHz
FM usable sensitivity (IHF) 16.8 dBf
FM antenna terminal
75 ohms (unbalanced)
MW tuning range
531 kHz to 1602 kHz (9 kHz step)
530 kHz to 1710 kHz (10 kHz step)
MW usable sensitivity
350
µ V/m
LW tuning range
144 kHz to 290 kHz
LW usable sensitivity
1400
µ V/m
MW/LW antenna
Loop antenna
AMPLIFIER
Power output
Rated: 4 W + 4 W (6 ohms, T.H.D. 1%,
1kHz/DIN 45500)
Reference: 5 W + 5 W (6 ohms,T.H.D. 10 %,
1 kHz/DIN 45324)
DIN MUSIC POWER 10 W + 10 W (EZ)
Total harmonic distortion
0.1 % (3 W, 1 kHz, 6 ohms, DIN AUDIO)
Input
AUX IN: 500 mV
Outputs
SPEAKERS: 6 ohms or more
PHONES: 32 ohms or more
CASSETTE DECK
Track format
4 tracks, 2 channels stereo
Frequency response
50 Hz - 10000 Hz
Recording system
AC bias
Heads
Recording/playback x 1,erase x 1
CD PLAYER
Laser
Semiconductor laser (
= 780 nm)
D/A converter
1 bit dual
Signal-to-noise ratio
80 dB (1 kHz, 0 dB)
Wow and flutter
Unmeasurable
GENERAL
Power requirements
230 V AC, 50 Hz
Power consumption
35 W
Dimensions (W x H x D)
163 x 230 x 215.7 mm
Weight
2.6 kg
SPEAKER SYSTEM SX-LEM20
Speaker system
1 way, bass reflex (magnetic shielded)
Speaker unit
Full range: 100 mm cone
Impedance
6 ohms
Dimensions (W x H x D)
140 x 230 x 195 mm
Weight
1.8 kg
· Design and specifications are subject to change without notice.
-4-
This set employs laser. Therefore, be sure to follow carefully the
instructions below when servicing.
WARNING!!
WHEN SERVICING, DO NOT APPROACH THE LASER
EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS
NECESSARY TO CONFIRM LASER BEAM EMISSION.
BE SURE TO OBSERVE FROM A DISTANCE OF MORE
THAN 30cm FROM THE SURFACE OF THE OBJECTIVE
LENS ON THE OPTICAL PICK-UP BLOCK.
Caution: Invisible laser radiation when
open and interlocks defeated avoid
exposure to beam.
Advarsel: Usynlig laserståling ved åbning,
når sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling.
VAROITUS!
Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa
mainitulla tavalla saataa altistaa käyt-täjän
turvallisuusluokan 1 ylittävälle näkymättömälle
lasersäteilylle.
VARNING!
Om apparaten används på annat sätt än vad som
specificeras i denna bruksanvising, kan användaren
utsättas för osynling laserstrålning, som överskrider
gränsen för laserklass 1.
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING - 1/1
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herin may result in
hazardous radiation exposure.
ATTENTION
L'utillisation de commandes, réglages ou procédures
autres que ceux spécifiés peut entraîner une dangereuse
exposition aux radiations.
ADVARSEL
Usynlig laserståling ved åbning, når sikkerhedsafbrydereer
ude af funktion. Undgå udsættelse for stråling.
This Compact Disc player is classified as a CLASS 1
LASER product.
The CLASS 1 LASER PRODUCT label is located on the
rear exterior.
CLASS 1
LASER PRODUCT
KLASSE 1
LASER PRODUKT
LUOKAN 1
LASER LAITE
KLASS 1
LASER APPARAT
Precaution to replace Optical block
(KSM-213RDM)
Body or clothes electrostatic potential could
ruin laser diode in the optical block. Be sure
ground body and workbench, and use care the
clothes do not touch the diode.
1) After the connection, remove solder shown in
right figure.
CD PICK-UP Assy PWB
Solder
!
= ! SAFTY PARTS
C
= Components marked
All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.
UNIT-NAME
! C REF-NO PARTS-NO
PARTS-NAME
SUFFIX&MODEL
-5-
ACCESSORIES PARTS LIST -1/1
CX-LEM20
CX-LEM20
EZSC
KSC
0 AS1001
8C-CL7-906-010 IB,EZ (9L)BF SIZE:(210x148)mm
a
.
0 AS1001
8C-CL7-905-010 IB,K(E)BF SIZE:(210x148)mm, M
.
b
0 AS1002
8C-CL6-701-010 REMOTE CONTROL UNIT RC-CAS07
a
b
0 AS1003
87-A90-054-010 Ant. Loop AM-CON C [TOMEI] TO
a
b
X AS1004
87-A92-346-010 ANT,WIRE FM EZ/K L=1500
a
b
! 0 AS1005
S7-099-726-010 CONVERSION PLUG (VDE TO BSI)
.
b