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SERVICE MANUAL
DA
TA
COMPACT DISC
STEREO SYSTEM
BASIC CD MECHANISM : DA11B3
XR-X7
U, EZ, K, HR, C
S/M Code No. 09-018-445-8R2
· This Service Manual is the "Revision Publishing" and replaces
"Simple Manual" of XR-X7 <U, EZ, K>, (S/M Code No. 09-015-445-8T1).
REVISION
XR-X7
SPEAKER
SYSTEM
CX-LX7
RC-BAT01(BS)
COMPACT
DISC
REMOTE
CONTROLLER
SX-LX7


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­ 2 ­
SPECIFICATIONS ............................................................................................................................................................... 3
PROTECTION OF EYES FROM LASER DURING SERVICING ................................................................................... 4
ELECTRICAL MAIN PARTS LIST .............................................................................................................................. 5 ~ 9
TRANSISTOR ILLUSTRATION ........................................................................................................................................ 10
WIRING ­ 1 (AMP ­ MICON) <U, EZ, K, HR> .................................................................................................................. 11
WIRING ­ 2 (AMP ­ MICON) <C> .................................................................................................................................... 12
SCHEMATIC DIAGRAM ­ 1 (AMP ­ MICON) .................................................................................................................. 13
WIRING ­ 3 (FRONT / KEY / SUPPLY / MOSW / HP) <U, EZ, K> .................................................................................. 14
WIRING ­ 4 (FRONT / KEY / SUPPLY / MOSW / HP) <HR, C> ...................................................................................... 15
SCHEMATIC DIAGRAM ­ 2 (FRONT / KEY / MOSW) ..................................................................................................... 16
SCHEMATIC DIAGRAM ­ 3 (SUPPLY / HP) .................................................................................................................... 17
WIRING ­ 5 (CD / JACK) <U, EZ, K> ............................................................................................................................... 18
WIRING ­ 6 (CD / JACK) <HR, C> ................................................................................................................................... 19
WIRING ­ 7 (CD ­ MOTOR> ............................................................................................................................................. 20
SCHEMATIC DIAGRAM ­ 4 (CD 1 / 2 / CD ­ MOTOR) ................................................................................................... 21
SCHEMATIC DIAGRAM ­ 5 (CD 2 / 2 / JACK) ................................................................................................................ 22
WIRING ­ 8 (PT) <U, EZ, K, C> ....................................................................................................................................... 23
SCHEMATIC DIAGRAM ­ 6 (PT) <U, EZ, K, C> ............................................................................................................. 24
WIRING ­ 9 (PT) <HR> .................................................................................................................................................... 25
SCHEMATIC DIAGRAM ­ 7 (PT) <HR> .......................................................................................................................... 26
WIRING ­ 10 (TUNER) <U, HR, C> ................................................................................................................................. 27
SCHEMATIC DIAGRAM ­ 8 (TUNER) <U, HR, C> ......................................................................................................... 28
WIRING ­ 11 (TUNER) <EZ, K> ....................................................................................................................................... 29
SCHEMATIC DIAGRAM ­ 9 (TUNER) <EZ, K> .............................................................................................................. 30
IC BLOCK DIAGRAM ................................................................................................................................................. 31, 32
LCD DIAGRAM ................................................................................................................................................................. 33
IC DESCRIPTION ..................................................................................................................................................... 34 ~ 39
ADJUSTMENT <TUNER / CD / AMP ­ MICON> ..................................................................................................... 40 ~ 44
CD TEST MODE .............................................................................................................................................................. 45
MECHANICAL PARTS ARRANGEMENT ............................................................................................................... 46 ~ 51
MECHANICAL PARTS LIST 1 / 1 ................................................................................................................................... 52
CD MECHANISM EXPLODED VIEW 1 / 1 .................................................................................................................... 53
CD MECHANISM PARTS LIST 1 / 1 ............................................................................................................................. 53
GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) .......................................................... 54
SPEAKER PARTS LIST <SX ­ LX7 (YJSN, YUJSN)> .................................................................................................. 55
ACCESSORIES / PACKAGE LIST ................................................................................................................................... 55
TABLE OF CONTENTS


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­ 3 ­
SPECIFICATIONS <EZ, K>
MAIN UNIT CX-LX7
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
µV/m
LW tuning range
144 kHz to 290 kHz
LW usable sensitivity
1400
µV/m
MW/LW antenna
Loop antenna
AMPLIFIER
Power output
Rated: 16 W + 16 W
(6 ohms, THD 1 %, 1 kHz/DIN 45500)
Reference: 20 W + 20 W
(6 ohms, THD 10 %, 1 kHz/DIN 45324)
DIN MUSIC POWER: 30 W + 30 W
Input
VIDEO/AUX: 400 mV
Outputs
SPEAKERS: 6 ohms or more
PHONES: 16 ohms or more
SUB WOOFER: 1.0 V
DIGITAL OUT (OPTICAL) jack
LINE OUT jack
CD PLAYER
Laser
Semiconductor laser (
= 780 nm)
D/A converter
1 bit dual
Signal-to-noise ratio
85 dB (1 kHz, 0 dB)
Harmonic distortion
0.08 % (1 kHz, 0 dB)
Wow and flutter
Unmeasurable
GENERAL
Power requirements
230 V AC, 50 Hz
Power consumption
EZ: 50 W
K: 55 W
Power consumption in
standby mode
EZ: With ECO mode on: 1.2 W
With ECO mode off: 13 W
K: With ECO mode on: 1.5 W
With ECO mode off: 15 W
Dimensions (W x H x D)
249 x 92 x 353 mm
Weight
3.5 kg
SPEAKER SYSTEM SX-LX7
Speaker system
2 way, bass reflex (magnetic shielded)
Speaker units
Woofer: 80 mm cone
Tweeter: 25 mm dome
Impedance
6 ohms
Dimensions (W x H x D)
98 x 260 x 191 mm
Weight
1.6 kg
· Design and specifications are subject to change without notice.
SPECIFICATIONS <U, HR, C>
MAIN UNIT CX-LX7
TUNER
FM tuning range
87.5 MHz to 108 MHz
FM usable sensitivity (IHF)
13.2 dBf
FM antenna terminals
75 ohms (unbalanced)
AM tuning range
530 kHz to 1710 kHz (10 kHz step)
531 kHz to 1602 kHz (9 kHz step)
AM usable sensitivity
350
µV/m
AM antenna
Loop antenna
AMPLIFIER
Power output <U, C>
16 W + 16 W
(150 Hz - 16 kHz, THD less than 1 %,
6 ohms)
20 W + 20 W
(1 kHz, THD less than 10 %, 6 ohms)
Total harmonic distortion <U, C>
0.1 % (6 W, 1 kHz, 6 ohms, DIN AUDIO)
Power output <HR>
Rated: 16 W + 16 W
(6 ohms, THD 1 %, 1 kHz)
Reference: 20 W + 20 W
(6 ohms, THD 10 %, 1 kHz)
Input
VIDEO/AUX: 400 mV
Outputs
SPEAKERS: 6 ohms or more
PHONES: 16 ohms or more
SUB WOOFER: 1.0 V
DIGITAL OUT (OPTICAL) jack
LINE OUT jack
CD PLAYER
Laser
Semiconductor laser (
= 780 nm)
D/A converter
1 bit dual
Signal-to-noise ratio
85 dB (1 kHz, 0 dB)
Harmonic distortion
0.08 % (1 kHz, 0 dB)
Wow and flutter
Unmeasurable
GENERAL
Power requirements
U, C: 120 V AC, 60 Hz
HR: 120 / 220 - 240 V AC switchable
50 / 60 Hz
Power consumption
U: 45 W
C: 50 W
HR: 60 W
Power consumption in
standby mode
With ECO mode on: 1.0 W
U, C: With ECO mode off: 13 W
HR: With ECO mode off: 15 W
Dimensions (W x H x D)
249 x 92 x 350 mm
(9 7/8 x 3 3/4 x 13 7/8 in.)
Weight
3.5 kg (7 lbs 13 oz)
SPEAKER SYSTEM SX-LX7
Speaker system
2 way, bass reflex (magnetic shielded)
Speaker units
Woofer: 80 mm (3 1/4 in.) cone
Tweeter: 25 mm (1 in.) dome
Impedance
6 ohms
Dimensions (W x H x D)
98 x 260 x 191 mm
(3 7/8 x 10 3/8 x 7 5/8 in.)
Weight
1.6 kg (3 lbs 10 oz)
· Design and specifications are subject to change without notice.


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­ 4 ­
CLASS 1
LASER PRODUCT
KLASSE 1
LASER PRODUKT
LUOKAN 1
LASER LAITE
KLASS 1
LASER APPARAT
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 OBJEC-
TIVE LENS ON THE OPTICAL PICK-UP BLOCK.
s Caution: Invisible laser radiation when
open and interlocks defeated avoid
exposure to beam.
s 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
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.
Precaution to replace Optical block
(SF-P101NR)
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.
Solder
PICK-UP Assy PWB


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­ 5 ­
ELECTRICAL MAIN PARTS LIST
DESCRIPTION
REF. NO.
KANRI
NO.
PART NO.
DESCRIPTION
REF. NO.
KANRI
NO.
PART NO.
IC
87-A20-446-010
C-IC,LA9241ML
87-A21-319-010
C-IC,LC78622NE
87-017-917-080
IC,BU4066BCF
87-A21-968-030
C-IC,LC75824E
87-A22-043-010
IC,SPS-440-1-E1
87-A21-985-040
C-IC,BA5983FM
87-001-576-010
IC,MJM7812FA
87-002-349-010
IC,NJM78M06FA
87-A21-298-010
IC,SI-3050F
8B-CL2-601-030
C-IC,LC876564V-5V69
87-A21-452-130
C-IC,BD3876AKS2
87-A21-103-040
C-IC,MM1454XFBE
87-017-825-010
IC,GP1F32T
87-A21-928-010
IC,LC72131D-N
87-A20-440-040
C-IC,BU1920FS<EZ>
87-A20-913-010
IC,LA1837NL
TRANSISTOR
87-026-463-080
TR,2SA933SRS
87-026-245-080
TR,DTC114ES
87-A30-198-080
TR,KTC3199GR
87-026-609-080
TR,KTA1266GR
87-A30-427-040
C-TR,DTC114EKA
87-A30-075-080
C-TR,2SA1235F
87-A30-447-040
C-TR,DTA114EKA
87-A30-234-080
TR,CSC4115BC
87-A30-520-080
TR,2SC5342Y
87-A30-515-080
TR,2SA1979O/Y
87-A30-076-080
C-TR,2SC3052F
89-333-266-080
CHIP TR,2SC3326B
87-A30-107-070
C-TR,CMBT5401
87-A30-060-080
C-TR,KTC3875GR
87-A30-190-080
TR,CC5551
87-A30-306-010
TR,2SB1677
87-A30-307-010
TR,2SD2619
87-A30-257-080
C-TR,2SD1306E
87-A30-484-080
C-TR,KRA102S
87-A30-061-080
C-TR,KTA1504GR
87-A30-494-080
TR,2SA1980G
87-A30-490-080
C-TR,KRC107S
87-A30-087-080
C-FET,2SK2158
87-A30-287-040
C-TR,DTC114TKA
87-A30-196-080
TR,2SC4115SRS
89-327-143-080
C-TR,2SC2714O
87-A30-072-080
C-TR,RT1P 144C
87-A30-635-040
C-TR,SBT5401F<HR,C>
89-322-405-080
TR,2SC2240GR<C>
89-503-602-080
C-FET,2SK360E<EZ,K>
87-A30-086-070
C-TR,CSD1306E<EZ,K>
87-A30-074-080
C-TR,RT1P141C<EZ,K>
DIODE
87-020-465-080
DIODE,1SS133 (110MA)
87-070-274-080
DIODE,1N4003 SEM
87-070-136-080
ZENER,MTZJ5.1B
87-A40-313-080
C-DIODE,MC2840
87-A40-270-080
C-DIODE,MC2838
87-A40-269-080
C-DIODE,MC2836
87-A40-505-040
C-DIODE,KDS181
87-017-654-060
DIODE,GBU6JL6131
87-017-650-080
DIODE,1SS119
87-A40-504-040
C-DIODE,KDS184
87-A40-748-080
ZENER,UZ5.6BSA
87-A40-437-080
ZENER,MTZJ4.3B
87-017-148-080
ZENER,HZS6A1L
AMP-MICON C.B
C114
87-016-044-040
CAP,E 100-16 GAS
C115
87-016-044-040
CAP,E 100-16 GAS
C116
87-016-044-040
CAP,E 100-16 GAS
C161
87-010-553-040
CAP,E 47-16
C162
87-010-496-040
CAP,E 3.3-50 5L
C201
87-012-278-080
C-CAP,U 2200P-50 B
C202
87-012-278-080
C-CAP,U 2200P-50 B
C203
87-010-421-080
CAP, ELECT 4.7-50V
C204
87-A12-090-080
CAP,E 4.7-50 SMG
C205
87-012-281-080
C-CAP,U 3900P-50 B
C206
87-012-281-080
C-CAP,U 3900P-50 B
C207
87-A12-090-080
CAP,E 4.7-50 SMG
C208
87-A12-090-080
CAP,E 4.7-50 SMG
C211
87-A12-070-080
CAP,E 33-25 SMG
C212
87-A12-070-080
CAP,E 33-25 SMG
C213
87-012-266-080
C-CAP,U 220P-50 B
C214
87-012-266-080
C-CAP,U 220P-50 B
C219
87-012-286-080
C-CAP,U 0.01-25 K B
C220
87-012-286-080
C-CAP,U 0.01-25 K B
C221
87-010-831-080
C-CAP,U,0.1-16F
C222
87-010-831-080
C-CAP,U,0.1-16F
C231
87-010-490-040
CAP, ELECT 0.1-50
C232
87-010-490-040
CAP, ELECT 0.1-50
C298
87-012-282-080
C-CAP,U 4700P-50 K B
C299
87-012-286-080
C-CAP,U 0.01-25 K B
C301
87-012-278-080
C-CAP,U 2200P-50 B
C302
87-A10-781-080
C-CAP,U 0.15-10 K B
C303
87-010-785-080
C-CAP,U0.015-25BK
C305
87-A12-063-080
CAP,E 220-10 SMG
C306
87-012-195-080
C-CAP,U 100P-50CH
C307
87-012-176-080
C-CAP,U 15P-50 J CH
C308
87-012-198-080
C-CAP,U 180P-50 J CH
C309
87-012-274-080
CHIP CAP,U 1000P-50B
C310
87-010-831-080
C-CAP,U,0.1-16F
C313
87-010-831-080
C-CAP,U,0.1-16F
C314
87-010-831-080
C-CAP,U,0.1-16F
C315
87-010-831-080
C-CAP,U,0.1-16F
C471
87-A11-132-080
CAP,TC U 0.01-50 K B<EXCEPT C>
C471
87-012-286-080
C-CAP,U 0.01-25 KB<C>
C472
87-A11-132-080
CAP,TC U 0.01-50 K B<EXCEPT C>
C472
87-012-286-080
C-CAP,U 0.01-25 KB<C>
C473
87-A11-132-080
CAP,TC U 0.01-50 K B
CN101
87-099-411-010
CONN,11P V WHT EH
CN201
87-049-919-010
CONN,3P V WHT EH
CN401
87-A61-370-010
CONN,21P V BLK FMN-BTRK
CN403
87-A61-272-010
CONN,11P V BLK FMN-BTRK
CN404
87-A60-900-010
CONN,9P V BLK FMN-BTRK
CN405
87-099-014-010
CONN,12P V BLK 6216
CN406
87-099-211-010
CONN,4P V BLK 6216<EZ>
CNA101
87-A60-620-010
CONN,3P V 2MM JMT
L151
87-A50-333-010
COIL,OSC 9.43MHZ
R229
87-A00-258-080
RES,M/F 0.22-1W J
R230
87-A00-258-080
RES,M/F 0.22-1W J
R231
87-A00-258-080
RES,M/F 0.22-1W J
R232
87-A00-258-080
RES,M/F 0.22-1W J
R319
87-022-239-080
C-RES U 10K-1/16WF
R324
87-022-239-080
C-RES U 10K-1/16WF
TH201
87-A91-042-080
C-THMS,100K 55001
TH202
87-A91-042-080
C-THMS,100K 55001
FRONT C.B
C101
87-012-195-080
C-CAP,U 100P-50CH
C102
87-010-560-040
CAP,E 10-50 GAS
C103
87-010-829-080
CAP, U 0.047-16
C104
87-010-829-080
CAP, U 0.047-16
C105
87-012-195-080
C-CAP,U 100P-50CH
C106
87-012-195-080
C-CAP,U 100P-50CH