Sanyo DC-X8CT User manual

Separate Mini Component
System
REFERENCE No. SM5810221
FILE NO.
Service Manual DC-X8CT (UK)
DC-X8CM (UK)
DC-088C (XE)
DC-088C (SP)
RD-X8 (UK-2)
RD-088 (XE)
RD-088 (SP)
MDG-088 (XE)
PRODUCT CODE No.
129 607 06 (DC-X8CT/UK)
129 607 07 (DC-X8CM/UK)
129 607 01 (DC-088C/XE)
129 607 08 (DC-088C/SP)
142 802 06 (RD-X8/UK-2)
142 802 01 (RD-088/XE)
142 802 07 (RD-088/SP)
137 106 01 (MDG-088/XE)
Tape Deck RD-X8 (UK-2)
(Option for DC-X8CM/UK)
Tape Deck RD-088 (XE)
(Option for DC-088C/XE)
Tape Deck RD-088 (SP)
(Option for DC-088C/SP)
MD Deck MDG-088 (XE)
(Option for DC-088C/XE)
Exapmle: DC-X8CM+RD-X8
OPEN/CLOSE
PLAY MODE MEMORY DISC MODE
DISC SELECT
DISC 1
DISC 2
DISC 3
DISC 1 DISC 2 DISC 3
/ON
STANDBY
BAND TUNE MODE PTY CHECK RDS MODE INPUT
VOLUME
MULTI JOG
JOG MODE
MEMORY
PHONES MULTI MEDIA IN
TIMER CLOCK/ECO SET/CLEAR SURROUND
MULTI JOG
COMPU REC
EJECT
PLAY MODE INPUT
EDIT ENTER
OPEN/CLOSE
REC
PAUSE
sB NR
REV MODE
COMPU REC
1 2 3
4 5 6
7 8 9
SHIFT
0
10
RECMODE MD DISPLAY
+
100
+
VOL +
RB-X8RD
SCROLL
AUTO MARK
CD
SLEEP MEMORY
z / ON
TUNER
BAND
TUNE/PTY+
TUNE/PTY–
RDS
MODE
FM MODE
REPEAT
PTY
CHECK
MD
MD PLAY
MODE
MD MD CD
CD PLAY
MODE
TAPE RECMUTE
TAPE SURROUND VIDEO
SUPER
BASS BASS/
TREBLE
DISC
SELECT

- 1 -
CONTENTS
Specifications ...................................................................2
Arrangement ....................................................................3
System connections .........................................................4
What to do if .....................................................................7
Laser beam safety precaution..........................................8
TUNER & AMPLIFIER SECTION
Tuner adjustments ...........................................................9
Exploded view ..................................................................10
Parts list ...........................................................................11
IC block diagram & description ........................................16
FL display description ......................................................19
Schematic diagram
(Front) ...........................................................................22
(Amplifier)......................................................................26
(Tuner) ..........................................................................30
Wiring diagram
(Power transformer, primary & secondary P.W.Board) ..........20
(Speaker, Headphone & Sub power transformer )........21
(Front) ...........................................................................24
(Amplifier)......................................................................28
(Tuner) ..........................................................................32
Wiring connection ............................................................34
CD SECTION
CD pick-up maintenance..................................................35
CD player adjustments.....................................................35
Exploded view
(Cabinet & Chassis) ......................................................36
(CD mechanism) ...........................................................39
(CD base mechanism) ..................................................40
Parts list
(Cabinet & Chassis) ......................................................37
(CD mechanism) ...........................................................40
(CD base mechanism) ..................................................40
Wiring connection ............................................................41
Schematic diagram
(CD)...............................................................................42
Wiring diagram
(CD, Front & Open close switch) ........................................44
IC block diagram & description ........................................48
TAPE DECK SECTION
Tape adjustments ............................................................49
Exploded view
(Cabinet & Chassis) ......................................................50
(Tape mechanism) ........................................................54
Parts list
(Cabinet & Chassis) ......................................................51
(Tape mechanism) ........................................................54
IC block diagram & description ........................................54
Wiring connection ............................................................56
Memo ...............................................................................57
Schematic diagram
(Tape deck) ...................................................................58
Wiring diagram
(Deck, Deck switch, Deck switch 2 & Deck LED ) .................60
MD DECK SECTION
Replacement and lubrication of the MD door...................62
IC block diagram & description ........................................62
Exploded view
(Cabinet,Chassis & MD mechanism ) ...........................66
Parts list
(Cabinet & Chassis) ......................................................67
(MD mechanism)...........................................................68
Wiring connection ............................................................69
Schematic diagram
(Front) ...........................................................................70
(Power supply) ..............................................................74
Wiring diagram
(Front, LED1, & LED2) ..................................................72
(Power supply) ..............................................................75
FL display description ......................................................76

- 2 -
TAPE DECK SECTION (RD-X8/RD-088)
Track system.................... 4-track, 2-channel stereo
Frequency response ........ 50 Hz to 16 kHz (CrO2 tape)
50 Hz to 15 kHz (Normal tape)
Signal-to-noise ratio ......... 60dB (Dolby B NR ON)
Wow/flutter ....................... 0.12%(WRMS)
Fast forward/rewind time.. Approx.110 sec. (C-60)
Power supply ................... Supplied from the Tuner/Amplifier
Dimensions ...................... 225 (W) x 89(H) x 272 (D) mm
Weight .............................. 2.0 kg
TUNER/AMPLIFIER SECTION(JCX-X8/JCX-088)
Reception frequency ........ FM : 87.5 - 108 MHz
AM : 522 - 1,611 kHz
Output power ................... 30W x 2 (at 6 ohm,10%distortion)
Inputs ............................... VIDEO (AUDIO) : 500 mV/50k ohms
MULTI MEDIA IN : 500 mV/50k ohms
Outputs............................. SPEAKERS : 6 ohms
PHONES : 8 - 32 ohms
SUB WOOFER OUT : 10k ohms
Power requirements ......... AC 230V, 50 Hz
Power comsumption ........ 80W
1.0W (Eco On standby mode)
15W (Eco Off standby mode)
Dimensions ...................... 225 (W) x 89 (H) x 272 (D) mm
Weight .............................. 3.6kg
CD SECTION (CP-X8/CP-088, CD CHANGER)
Type ................................. Changer, 3-disc
Channels .......................... 2-channel stereo
Sampling frequency ......... 44.1 kHz
Pick-up ............................. Optical 3-beam semiconductor laser
Laser output ..................... 0.6 mW (Continuous wave max.)
Wave length ..................... 790 nm
Frequency response ........ 20 Hz to 20 kHz
Wow/flutter ....................... Below measurable limits
Output .............................. OPTICAL DIGITAL OUT : Optical
Power supply ................... Supplied from the Tuner/Amplifier
Dimensions ...................... 225 (W) x 89 (H) x 272 (D) mm
Weight .............................. 2.1 kg
SPECIFICATIONS
Specifications subject to change without notice.
SPEAKER SYSTEM (SX-X8/SX-088)
Type ................................ 3 way bass reflex
Built-in magnetic stray field
compensation
Unit used ......................... Woofer : 15 cm cone type
Mid range : 8 cm cone type
Tweeter : 3.5 cm balance driver
Maximum power-handling
capacity .......................... 60W (peak)
Nominal impedance ........ 6 ohms
Dimensions ..................... 185 (W) x 358 (H) x 255 (D) mm
MD DECK SECTION (MDG-X8/MDG-088)
Sampling frequency ......... 44.1 kHz
Pick-up ............................. Optical 3-beam semiconductor laser
Laser output ..................... 6.85 mW (Continuous wave max.)
Wave length ..................... 685 nm
Wow flutter ....................... Below measurable limits
Recording system ............ Magnetic moduration over write
Input ................................. OPTICAL DIGITAL IN : Optical
Power supply ................... Supplied from the Tuner/Amplifier
Dimensions ...................... 225 (W) x 89 (H) x 272 (D) mm
Weight .............................. 1.7kg

- 3 -
CAUTION:
Placing the system in a well ventilated area is strongly recommended. Do not place any object on the top of the JCX-X8/JCX-088 Tuner/Amplifier.
The cabinet of the Tuner/Amplifier warms up when the system is used for a long time, but it is not a malfunction.
Example 1
OPEN/CLOSE
PLAY MODE MEMORY DISC MODE
DISC SELECT
DISC 1
DISC 2
DISC 3
DISC 1 DISC 2 DISC 3
/ON
STANDBY
BAND TUNE MODE PTY CHECK RDS MODE INPUT
VOLUME
MULTI JOG
JOG MODE
MEMORY
PHONES MULTI MEDIA IN
TIMER CLOCK/ECO SET/CLEAR SURROUND
MULTI JOG
COMPU REC
EJECT
PLAY MODE INPUT
EDIT ENTER
OPEN/CLOSE
REC
PAUSE
sB NR
REV MODE
COMPU REC
OPEN/CLOSE
PLAY MODE MEMORY DISC MODE
DISC SELECT
DISC 1
DISC 2
DISC 3
DISC 1 DISC 2 DISC 3
/ON
STANDBY
BAND TUNE MODE PTY CHECK RDS MODE INPUT
VOLUME
MULTI JOG
JOG MODE
MEMORY
PHONES MULTI MEDIA IN
TIMER CLOCK/ECO SET/CLEAR SURROUND
OPEN/CLOSE
REC
PAUSE
sB NR
REV MODE
COMPU REC
OPEN/CLOSE
PLAY MODE MEMORY DISC MODE
DISC SELECT
DISC 1
DISC 2
DISC 3
DISC 1 DISC 2 DISC 3
/ON
STANDBY
BAND TUNE MODE PTY CHECK RDS MODE INPUT
VOLUME
MULTI JOG
JOG MODE
MEMORY
PHONES MULTI MEDIA IN
TIMER CLOCK/ECO SET/CLEAR SURROUND
MULTI JOG
COMPU REC
EJECT
PLAY MODE INPUT
EDIT ENTER
Example 2 Example 3 Example 4
JCX-X8
JCX-088
CP-X8
CP-088
MDG-X8
MDG-088
RD-X8
RD-088
JCX-X8
JCX-088 JCX-X8 JCX-088
CP-X8
CP-088 CP-X8 CP-088
MDG-X8
MDG-088
RD-X8
RD-088
ARRAMGEMENT
COMPONENT SYSTEM COMPOSITION
System DC-X8CT/UK
Tuner/Amplifier: JCX-X8
CD changer: CP-X8
Tape deck: RD-X8
Speaker system: SX-X8
System DC-X8CM/UK
Tuner/Amplifier: JCX-X8
CD changer: CP-X8
MD deck: MDG-X8
Speaker system: SX-X8
Tape deck: SANYO RD-X8 (Option)
System DC-088C/XE
Tuner/Amplifier: JCX-088
CD changer: CP-088
Speaker system: SX-088
Tape deck: S ANYO RD-088(Option)
MD deck: SANYO MDG-088 (Option)
System DC-088C/SP
Tuner/Amplifier: JCX-088
CD changer: CP-088
Speaker system: SX-088
Tape deck: S ANYO RD-088(Option)
OPEN/CLOSE
PLAY MODE MEMORY DISC MODE
DISC SELECT
DISC 1
DISC 2
DISC 3
DISC 1 DISC 2 DISC 3
/ON
STANDBY
BAND TUNE MODE PTY CHECK RDS MODE INPUT
VOLUME
MULTI JOG
JOG MODE
MEMORY
PHONES MULTI MEDIA IN
TIMER CLOCK/ECO SET/CLEAR SURROUND
MULTI JOG
COMPU REC
EJECT
PLAY MODE INPUT
EDIT ENTER
OPEN/CLOSE
REC
PAUSE
sB NR
REV MODE
COMPU REC
MDG-X8
MDG-088
MD deck (For System DC-X8CM)
MD deck (Optional for System
DC-088C)
SX-X8/SX-088
L ch speaker SX-X8/SX-088 R ch speaker
JCX-X8
JCX-088
Tuner/Amplifier
RD-X8/RD-088
Tape deck(Optional for System
DC-X8CM & DC-088C)
CP-X8/CP-088
CD changer

- 4 -
SYSTEM
CONNECTOR
OPTICAL
DIGITAL OUT
SYSTEM CONNECTOR
SYSTEM CONNECTOR
OPTICAL DIGITAL IN
SPEAKERS(6 ΩMIN.)
SUB WOOFER OUT
RL
VIDEO
(AUDIO)
IN L
R
SYSTEM
CONNECTOR
AC
DC
DC
DC
4V
12V
5V
-30V
EXT.ANT
FM75Ω
AM LOOP
Notes:
- Do not connect the mains lead to an AC outlet until all connections have been made.
- The system is not completely disconnected from the mains when the z/ON button is set to the zposition.
- To prevent a noise interference from the mains, the core clamp is attached to the mains lead. Do not remove it.
Video equipment/
DVD player
Amplified subwoofer
Tuner/Amplifier
MD deck
(Audio leads, not supplied)
CD changer
Tuner/Amplifier
If you have difficulty inserting the
plug, turn it over and reinsert it.
To disconnect, while pressing
both latches, remove the plug.
To connect, push the middle of
the plug and insert it until it clicks.
SYSTEM
CONNECTOR
SYSTEM
CONNECTOR
To an AC outlet
CD changerTape deck (Optical cable, supplied
with the MD deck)
(Flat connection lead)
Beforeconnecting,remove
the cap on this socket.
SYSTEM
CONNECTOR
OPTICAL
DIGITAL OUT
SYSTEM CONNECTOR
SPEAKERS(6 ΩMIN.)
SUB WOOFER OUT
RL
VIDEO
(AUDIO)
IN L
R
SYSTEM
CONNECTOR
AC
DC
DC
DC
4V
12V
5V
-30V
EXT.ANT
FM75Ω
AM LOOP
Tape deck
(Flat connection lead)
System connections
Example:
System DC-X8CM and optional Tape deck
For System DC-X8CM:
Notes on the flat connection lead
When using the system DC-X8CM and optional Tape deck, remove the
protective tape on the plug before connecting.
SYSTEM CONNECTOR
OPTICAL DIGITAL IN
SYSTEM
CONNECTOR
OPTICAL
DIGITAL OUT
SPEAKERS(6 ΩMIN.)
SUB WOOFER OUT
RL
VIDEO
(AUDIO)
IN L
R
SYSTEM
CONNECTOR
AC
DC
DC
DC
4V
12V
5V
-30V
EXT.ANT
FM75Ω
AM LOOP
For System DC-X8CT:
Example for the flat connection lead connection For System DC-X8CM: Example for the flat connection lead connection when using only the
system DC-X8CM
CD changer
Tuner/Amplifier
MD deck
(Flat connection lead)
Do not remove the protective tape on the plug that is not used.
SYSTEM CONNECTIONS

- 5 -
SYSTEM CONNECTIONS
Example1: System DC-088C + Tape deck + MD deck
SYSTEM
CONNECTOR
OPTICAL
DIGITAL OUT
SYSTEM CONNECTOR
SYSTEM CONNECTOR
OPTICAL DIGITAL IN
SPEAKERS(6 ΩMIN.)
SUB WOOFER OUT
RL
VIDEO
(AUDIO)
IN L
R
SYSTEM
CONNECTOR
AC
DC
DC
DC
4V
12V
5V
-30V
EXT.ANT
FM75Ω
AM LOOP
Auxiliary equipment/
DVD player
Amplified subwoofer
TAPE DECK
MD DECK
Flat connection lead Optical cable, supplied with the MD deck
Audio leads, not supplied
TUNER/AMPLIFIER
CD CHANGER
SYSTEM
CONNECTOR
SYSTEM
CONNECTOR
Fig.3a Fig.3b
Fig.3
To an AC outlet
SYSTEM
CONNECTOR
OPTICAL
DIGITAL OUT
SPEAKERS(6 ΩMIN.)
SUB WOOFER OUT
RL
VIDEO
(AUDIO)
IN L
R
SYSTEM
CONNECTOR
AC
DC
DC
DC
4V
12V
5V
-30V
EXT.ANT
FM75Ω
AM LOOP
CD CHANGER
CD CHANGER
TUNER/
AMPLIFIER
Fixer
yy
yy
y
yy
yy
y
Tape
TUNER/AMPLIFIER
Fig.4a
For System DC-088C/XE
Notes: Please refer to the notes for each items on the page 4.

- 6 -
SYSTEM
CONNECTOR
OPTICAL
DIGITAL OUT
SYSTEM CONNECTOR
SPEAKERS(6 ΩMIN.)
SUB WOOFER OUT
RL
VIDEO
(AUDIO)
IN L
R
SYSTEM
CONNECTOR
AC
DC
DC
DC
4V
12V
5V
-30V
EXT.ANT
FM75Ω
AM LOOP
Auxiliary equipment/DVD player
To an AC outlet
Amplified subwoofer
TAPE DECK
Flat connection lead
Audio leads, not supplied
TUNER/AMPLIFIER
CD CHANGER
SYSTEM
CONNECTOR
SYSTEM
CONNECTOR
Fig.3-1a Fig.3-1b
SYSTEM CONNECTIONS
Example: System DC-088C + Tape deck
SYSTEM
CONNECTOR
OPTICAL
DIGITAL OUT
SPEAKERS(6 ΩMIN.)
SUB WOOFER OUT
RL
VIDEO
(AUDIO)
IN L
R
SYSTEM
CONNECTOR
AC
DC
DC
DC
4V
12V
5V
-30V
EXT.ANT
FM75Ω
AM LOOP
CD CHANGER
CD CHANGER
TUNER/
AMPLIFIER yy
yy
y
yy
yy
y
Tape
Band
TUNER/AMPLIFIER
Fig.4-1
Fig.4-1a
Fixer
For System DC-088C/SP
Notes: Please refer to the notes for each items on the page 4.

- 7 -
SYSTEM CONNECTIONS
RESET
RESET
If the operation of the system or display is not normal,
1. Disconnect the mains lead.
2. Press the RESET button (bottom of the Tuner/Amplifier)
for at least 30 seconds.
3. Connect the mains lead.
4. Resume operation.
WHAT TO DO IF
Aerials
In areas close to a transmitter the simple indoor aerial is sufficient to
receive broadcasts. Extend the aerial wire as straight as possible and,
while listening to the sound from the system, secure it in a position which
yields minimal distortion and noise.
AM loop aerial
Assemble the loop aerial as shown in figure. Unwind the aerial wires, then
connect them to the AM LOOP terminals. Place the loop aerial in a position
which yields the best AM reception, or attach it to a wall or other surface
as shown in figure.
L ch speaker
Tuner/Amplifier
R ch speaker
Aerial wire
External
AM loop
FM75Ω
AM LOOP EXT.ANT
SPEAKERS (6 MIN.)
LR
SPEAKERS(6 ΩMIN.)
SUB WOOFER OUT
RL
VIDEO
(AUDIO)
IN L
R
SYSTEM
CONNECTOR
AC
DC
DC
DC
4V
12V
5V
-30V
EXT.ANT
FM75Ω
AM LOOP
Note:
To minimize noise, the speaker, mains and any other leads should not
come close to the indoor or external aerial lead and AM loop aerial. Do not
place the aerial leads close to the system.
Speakers
When connecting the speakers, make sure that (+) and (–) polarities are
matched properly. Otherwise, the sound may appear to be lacking in the
bass range and in stability.
Connect the speaker wire with the stripe to the red terminal (+) and the
other wire to the black terminal (–).
Note:
If desired, the speaker grilles can be removed.

- 8 -
LASER BEAM SAFETY PRECAUTION
Notes:
- For Tuner/Amplifier: The rating label is located on the bottom of the unit.
- The unit is not disconnected from the mains unless it is unplugged from the AC outlet.
•Pick-up that emits a laser beam is used in this CD player section.
(CD CHANGER)
(MD DECK) (XE only)
CAUTION –INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL –USYNLIG LASER STRÅLING VED ÅBNING, NÅR
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDGÅUDS ÆTTELSE
FOR STRÅLING.
VARNING –OSYNLIG LASER STRÅLNING NÄR DENNA DEL ÄR ÖPPNAD
OCH SPÄRR ÄR URKOPPLAD. STRÅLEN ÄR FARLIG.
VORSICHT –UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN
DECKEL GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT IST. NICHT, DEM STRAHL AUSSETZEN.
VARO –AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA
NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄKATSO SÄTEESEEN.
SYSTEM
CONNECTOR
OPTICAL
DIGITAL OUT
SYSTEM CONNECTOR
OPTICAL DIGITAL IN
CAUTION –INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL –USYNLIG LASER STRÅLING VED ÅBNING, NÅR
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDGÅUDS ÆTTELSE
FOR STRÅLING.
VARNING –OSYNLIG LASER STRÅLNING NÄR DENNA DEL ÄR ÖPPNAD
OCH SPÄRR ÄR URKOPPLAD. STRÅLEN ÄR FARLIG.
VORSICHT –UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN
DECKEL GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT IST. NICHT, DEM STRAHL AUSSETZEN.
VARO –AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA
NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄKATSO SÄTEESEEN.
For DC-088C/XE & DC-088C/SP
SYSTEM
CONNECTOR
OPTICAL
DIGITAL OUT
CAUTION
THIS PRODUCT CONTAINS A LOW POWER LA-
SER DEVICE, TO ENSURE CONTINUED SAFETY
DO NOT REMOVE ANY COVERS OR ATTEMPT
TOGAINACCESSTOTHE INSIDE OF THE PROD-
UCT.
REFER ALL SERVICING TO QUALIFIED PER-
SONNEL.
CAUTION
THIS PRODUCT CONTAINS A LOW POWER LA-
SER DEVICE, TO ENSURE CONTINUED SAFETY
DO NOT REMOVE ANY COVERS OR ATTEMPT
TOGAINACCESSTOTHE INSIDE OF THE PROD-
UCT.
REFER ALL SERVICING TO QUALIFIED PER-
SONNEL.
CD changer
MD deck
SYSTEM CONNECTOR
OPTICAL DIGITAL IN
For DC-X8C/UK, DC-X8CT/UK & DC-X8CM/UK

- 9 -
TUNER & AMPLIFIER SECTION
TUNER ADJUSTMENTS
Standatd Input: 60dB
Antenna : 75 unbalanced , Modulation : 1 kHz
Dev. : ±22.5kHz(MONO) 22.5kHz(STEREO) ±6.75kHz(PILOT)
SG Modulation : 1kHz, 30%
Antenna, IRE Loop, Distance: 60 cm
•Use a plastic screw driver for adjustments.
•MODE : ST (Stereo)
•Speaker impedance : 4 ohm
•TUNING
FM : 87.5 - 108MHz
MW: 522 - 1611kHz
1. FM
Step Adjusting Connection SG Set Adjustment Remark
Circuit Input Output Frequency Position
1
98.0MHz.Input Level Alignment voltage IC231 Alignment voltage IC231
FM Antenna SG=66dB µV 3-22pin(TP24,25) is 0.0 ±0.05V 3-22pin is 0.0 ±0.05V
2 Cover --- Connect Digital DC voltmeter to 87.5MHZ Low --- more than 0.8V
Voltage --- TP11(H), TP12(E). 108.0MHZ High --- less than 9.0V
2. MW
Step Adjusting Connection SG Set Adjustment Remark
Circuit Input Output Frequency Position
1 Cover --- Connect Digital DC voltmeter to 522kHZ Low more than 0.8V
Voltage --- TP11(H )and TP12(E). 1611kHZ High less than 9.0V
2 Tracking
Connect AM SG to Connect to VTVM 603KHZ Low L2151-a
Test loop Ant.
point TP13(L)or TP14(R) and TP15(E). 1404kHZ High
IF(0V)
Adjustment Low XF233
AF Maximum
98MHz
L2153