SERVICE MANUAL
DA
TA
COMPACT DISC
STEREO SYSTEM
XR-EM70
S/M Code No. 09-022-449-6R2
REVISION
U(S), LH(S)
BASIC TAPE MECHANISM : AZM-1 A4NM
BASIC CD MECHANISM : 3ZG-3 E13NM
This Service Manual is the Revision Publishing and replaces
Simple Manual of XR-EM70 <U,LH>, (S/M Code No. 09-01B-449-6T2).
XR-EM70
SPEAKER
SYSTEM
CX-LEM70
RC-BAT15
COMPACT
DISC
REMOTE
CONTROLLER
SX-LEM70
2
SPECIFICATIONS ..............................................................................................................................................................3
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ......................................................................4
ELECTRICAL MAIN PARTS LIST ..............................................................................................................................5 ~ 9
TRANSISTOR ILLUSTRATION........................................................................................................................................10
WIRING 1 (MAIN / PHONE / OPTICAL) .........................................................................................................................11
SCHEMATIC DIAGRAM 1 (MAIN 1 / 2 / PHONE / OPTICAL / HEAD) ..........................................................................12
SCHEMATIC DIAGRAM 2 (MAIN 2 / 2 : AMP SECTION) ............................................................................................13
WIRING 2 (FRONT) .......................................................................................................................................................14
WIRING 3 (FL) ...............................................................................................................................................................15
SCHEMATIC DIAGRAM 3 (FRONT / FL / DECK / FRAME / DRIVE) ............................................................................16
WIRING 4 (CD / CD DRIVE / CD LOAD) ..................................................................................................................17
SCHEMATIC DIAGRAM 4 (CD / CD DRIVE / CD LOAD) ........................................................................................18
WIRING 5 (TUNER) .......................................................................................................................................................19
SCHEMATIC DIAGRAM 5 (TUNER) .............................................................................................................................20
WIRING 6 (PT) ...............................................................................................................................................................21
SCHEMATIC DIAGRAM 6 (PT) .....................................................................................................................................22
WIRING 7 (DECK / FRAME / DRIVE / HEAD) ................................................................................................................23
IC BLOCK DIAGRAM ................................................................................................................................................ 24, 25
FL (HNA 11MS25) GRID ASSIGNMENT AND ANODE CONNECTION ....................................................................26
IC DESCRIPTION .................................................................................................................................................... 27 ~ 32
ADJUSTMENT (TUNER / DECK / CD / FL) ..............................................................................................................33 ~ 39
CD TEST MODE .............................................................................................................................................................40
MECHANICAL EXPLODED VIEW 1 / 1......................................................................................................................... 41
MECHANICAL PARTS LIST 1 / 1 ...................................................................................................................................42
COLOR NAME TABLE ....................................................................................................................................................43
TAPE MECHANISM EXPLODED VIEW 1 / 2 ............................................................................................................... 44
TAPE MECHANISM PARTS LIST 1 / 2 .........................................................................................................................45
TAPE MECHANISM EXPLODED VIEW 2 / 2 ............................................................................................................... 46
TAPE MECHANISM PARTS LIST 2 / 2 ................................................................................................................... 47 ,48
CD MECHANISM EXPLODED VIEW 1 / 2 ................................................................................................................... 49
CD MECHANISM PARTS LIST 1 / 2 .............................................................................................................................50
CD MECHANISM EXPLODED VIEW 2 / 2 ................................................................................................................... 51
CD MECHANISM PARTS LIST 2 / 2 .............................................................................................................................52
GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) ...........................................................53
SPEAKER PARTS LIST <SX LEM70 (YJMN)> ..........................................................................................................54
ACCESSORIES / PACKAGE LIST ...................................................................................................................................54
TABLE OF CONTENTS
3
SPECIFICATIONS
Design and specifications are subject to change without notice.
MAIN UNIT CX-LEM70
TUNER
FM tuning range
87.5 MHz to 108 MHz
FM usable sensitivity (IHF)
13.2 dBf
FM antenna terminal
75 ohms (unbalanced)
AM tuning range
531 kHz to 1602 kHz (9 kHz step)
530 kHz to 1710 kHz (10 kHz step)
AM usable sensitivity
350
µV/m
AM antenna
Loop antenna
AMPLIFIER
Power output <U>
28 W + 28 W
(40 Hz - 20 kHz, T.H.D. less than 1%,
6 ohms)
35 W + 35 W
(1 kHz, T.H.D. 10 %, 6 ohms)
Power output <LH>
Rated: 28 W + 28 W
(6 ohms, T.H.D. 1%, 1 kHz)
Reference : 35 W + 35 W
(6 ohms, T.H.D. 10 %,1 kHz)
Total harmonic distortion <U>0.15 % (17.5 W, 1 kHz, 6 ohms,
DIN AUDIO)
Input
AUX IN: 700 mV
Outputs
SPEAKERS: 6 ohms or more
PHONES: 32 ohms or more
DIGITAL OUT (OPTICAL) jack
CASSETTE DECK
Track format
4 tracks, 2 channels stereo
Frequency response
50 Hz - 15000 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
88 dB (1 kHz, 0 dB)
Harmonic distortion
Unmeasurable (1 kHz, 0 dB)
Wow and flutter
Unmeasurable
GENERAL
Power requirements <U>
120 V AC, 60 Hz
Power requirements <LH>
120 V / 220 - 240 V AC (switchable)
50 Hz / 60 Hz
Power consumption
60 W
Power consumption in
standby mode
U : With ECO mode on or AUTO: 0.7 W
LH : With ECO mode on or AUTO: 0.8 W
With ECO mode off: 14 W
Dimensions (W x H x D)
191.5 x 249.0 x 389.0 mm
(7 5/8 x 9 7/8 x 15 3/8 in.)
Weight
5.3 kg (11 lbs 12 oz)
SPEAKER SYSTEM SX-LEM70
Speaker system
2 way, bass reflex (magnetic shielded)
Speaker units
Woofer: 120 mm (47/8 in.) cone
Tweeter: 25 mm (1 in.) dome
Impedance
6 ohms
Dimensions (W x H x D)
155 x 250 x 218 mm
(6 1/8 x 10 x 8 5/8 in.)
Weight
2.4 kg (5 lbs 6 oz)
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
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herin may result in
hazardous radiation exposure.
ATTENTION
Lutillisation 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
(KSS-213F)
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
5
ELECTRICAL MAIN PARTS LIST
DESCRIPTION
REF. NO.
KANRI
NO.
PART NO.
IC
87-020-454-010
IC,DN6851
87-A21-831-010
IC,SPS-422-1-F1
8B-CLX-610-010
C-IC,LC876564V-5Y22
87-A20-455-010
IC,HA12211
87-A22-112-040
C-IC,BD3861FS
87-017-825-010
IC,GP1F32T
87-A20-446-010
C-IC,LA9241ML
87-A21-365-010
IC,NJM7808FA(A)
87-017-917-040
IC,BU4066BCF
87-A20-445-010
IC,BA5936S
87-A21-319-010
C-IC,LC78622NE
87-A21-695-010
IC,LA1845L
87-A21-928-010
IC,LC72131D-N
TRANSISTOR
87-A30-435-040
C-TR,DTC144EKA
87-A30-073-080
C-TR,RT1N 141C
89-112-965-080
TR,2SA1296GR
87-A30-495-080
TR,2SA1981Y
89-406-555-080
TR,2SD655E
87-A30-075-080
C-TR,2SA1235F
87-A30-484-080
C-TR,KRA102S
87-A30-087-080
C-FET,2SK2158
87-A30-076-080
C-TR,2SC3052F
89-322-405-680
TR,2SC2240(GR/BL)
87-A30-306-010
TR,2SB1677
87-A30-307-010
TR,2SD2619
87-A30-268-040
C-TR,2SA1514K(S)
87-A30-119-040
C-TR,2SC3906K R
87-A30-186-010
FET,2SK3053
87-A30-455-040
C-TR,DTA144EKA
87-A30-105-080
C-TR,RT1P 441C
87-026-610-080
TR,KTC3198GR
87-A30-494-080
TR,2SA1980G
89-213-702-010
TR,2SB1370E
87-A30-196-080
TR,2SC4115SRS
87-A30-489-080
C-TR,KRA107S
89-327-143-080
C-TR,2SC27140
89-503-602-080
C-FET,2SK360E
DIODE
87-A40-291-080
DIODE,1N4148 (CPT)
87-017-978-080
DIODE,1N4003
87-A40-270-080
C-DIODE,MC2838
87-A40-269-080
C-DIODE,MC2836
87-A40-455-080
DIODE,RL203 GW
87-A40-747-080
ZENER,UZ5.1BSB
87-A40-749-080
ZENER,UZ5.6BSB
87-A40-764-080
ZENER,UZ10BSC
87-020-465-080
DIODE,1SS133 (110MA)
87-A40-760-080
ZENER,UZ9.1BSA
87-A40-455-090
DIODE,RL203 GW
87-A40-553-080
DIODE,1N4003 LES
87-A40-748-080
ZENER,UZ5.6BSA
87-A40-777-080
ZENER,UZ30BSB
87-A40-763-080
ZENER,UZ10BSB
87-017-149-080
ZENER,HZS6A2L
MAIN C.B
C101
87-012-274-080
C-CAP,U 1000P-50 K B
C102
87-012-274-080
C-CAP,U 1000P-50 K B
C103
87-A12-091-080
CAP,E 10-50 SMG
C104
87-A12-091-080
CAP,E 10-50 SMG
C107
87-A12-091-080
CAP,E 10-50 SMG
C108
87-A12-091-080
CAP,E 10-50 SMG
C109
87-012-195-080
C-CAP,U 100P-50 J CH
C110
87-012-195-080
C-CAP,U 100P-50 J CH
C111
87-A12-092-080
CAP,E 22-50 SMG
C112
87-A12-092-080
CAP,E 22-50 SMG
C113
87-012-195-080
C-CAP,U 100P-50 J CH
C114
87-012-195-080
C-CAP,U 100P-50 J CH
C117
87-A12-317-080
C-CAP,U 0.1-50 Z F
C118
87-A12-317-080
C-CAP,U 0.1-50 Z F
C119
87-012-286-080
C-CAP,U 0.01-25 K B
C120
87-012-286-080
C-CAP,U 0.01-25 K B
C123
87-010-177-080
C-CAP,S 820P-50 J SL C2012
C124
87-010-177-080
C-CAP,S 820P-50 J SL C2012
C127
87-012-195-080
C-CAP,U 100P-50 J CH
C128
87-012-195-080
C-CAP,U 100P-50 J CH
C131
87-010-831-080
C-CAP,U 0.1-16 Z F
C133
87-012-282-080
CAP,U 4700P-50 K B
C140
87-012-278-080
C-CAP,U 2200P-50 K B
C186
87-010-759-080
C-CAP,U 0.1-25 Z F
C187
87-A12-077-080
CAP,E 33-35 SMG
C188
87-A12-077-080
CAP,E 33-35 SMG
C189
87-012-195-080
C-CAP,U 100P-50 J CH
C190
87-012-195-080
C-CAP,U 100P-50 J CH
C303
87-012-268-080
C-CAP,U 330P-50 K B GRM
C304
87-012-268-080
C-CAP,U 330P-50 K B GRM
C307
87-010-759-080
C-CAP,U 0.1-25 Z F
C311
87-010-787-080
CAP,U 0.022-25 K B
C312
87-010-787-080
CAP,U 0.022-25 K B
C313
87-A12-071-080
CAP,E 47-25 SMG
C314
87-A12-071-080
CAP,E 47-25 SMG
C315
87-012-276-080
C-CAP,U 1500P-50 K B
C316
87-012-276-080
C-CAP,U 1500P-50 K B
C321
87-A10-025-080
C-CAP,U 0.22-16Z F
C322
87-A10-025-080
C-CAP,U 0.22-16Z F
C324
87-A12-071-080
CAP,E 47-25 SMG
C325
87-A12-057-080
CAP,E 330-6.3 SMG
C327
87-A12-090-080
CAP,E 4.7-50 SMG
C328
87-A12-090-080
CAP,E 4.7-50 SMG
C332
87-010-759-080
C-CAP,U 0.1-25 Z F
C335
87-A12-087-080
CAP,E 1-50 SMG
C336
87-A12-087-080
CAP,E 1-50 SMG
C337
87-010-759-080
C-CAP,U 0.1-25 Z F
C340
87-010-759-080
C-CAP,U 0.1-25 Z F
C341
87-010-759-080
C-CAP,U 0.1-25 Z F
C342
87-A12-070-080
CAP,E 33-25 SMG
C343
87-012-280-080
CAP,U 3300P-50 K B
C344
87-012-286-080
CAP,U 0.01-25 K B
C345
87-012-188-080
C-CAP,U 47P-50 J CH
C346
87-012-286-080
C-CAP,U 0.01-25 K B
C351
87-012-270-080
C-CAP,U 470P-50 K B
C352
87-012-270-080
C-CAP,U 470P-50 K B
C354
87-012-271-080
C-CAP,U 560P-50 K B
C355
87-012-274-080
C-CAP,U 1000P-50 K B
C356
87-A12-071-080
CAP,E 47-25 SMG
C357
87-012-286-080
C-CAP,U 0.01-25 K B
C358
87-012-279-080
C-CAP,U 2700P-50 K B GRM
C359
87-012-279-080
C-CAP,U 2700P-50 K B GRM
C360
87-012-279-080
C-CAP,U 2700P-50 K B GRM
C368
87-A10-781-080
C-CAP,U 0.15-10 K B
C369
87-A10-781-080
C-CAP,U 0.15-10 K B
C370
87-010-759-080
C-CAP,U 0.1-25 Z F
C371
87-012-282-080
C-CAP,U 4700P-50 K B
C372
87-012-282-080
C-CAP,U 4700P-50 K B
C378
87-010-759-080
C-CAP,U 0.1-25 Z F
C381
87-012-337-080
C-CAP,U 56P-50 J CH
C382
87-012-337-080
C-CAP,U 56P-50 J CH
C388
87-012-199-080
C-CAP,U 220P-50 J CH
C391
87-010-787-080
C-CAP,U 0.022-25 KB
C403
87-010-759-080
C-CAP,U 0.1-25 Z F
C409
87-012-282-080
CAP,U 4700P-50 K B
C422
87-016-459-080
CAP,E 470-10 M SMG
DESCRIPTION
REF. NO.
KANRI
NO.
PART NO.