SERVICE MANUAL
COMPACT DISC
STEREO SYSTEM
BASIC TAPE MECHANISM : 6ZM-1 AR3NM
BASIC CD MECHANISM : AZG-1 YZD3RDM
XH-A1000 EZ,K
S/M Code No. 09-006-421-4R2
· If requiring information about the CD mechanism, see Service Manual of AZG-1
XHA1000
RCAAS01
SYSTEM
CD
SPEAKERS
REMOTE
CXA1000
SXWA1000
SX-C1800
SXR1800
2
TABLE OF CONTENTS
SPECIFICATIONS ................................................................................................................................................. 3
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ........................................................ 4
NOTE ON BEFORE STARTING REPAIR ................................................................................................... 5 ~ 6
DISASSEMBLY INSTRUCTIONS ................................................................................................................... 7 ~ 8
ELECTRICAL MAIN PARTS LIST .............................................................................................................. 9 ~ 16
TRANSISTOR ILLUSTRATION .......................................................................................................................... 17
WIRING 1 (MAIN / FAN) .................................................................................................................................. 18
SCHEMATIC DIAGRAM 1 (MAIN (1 / 4 : AMP SECTION) / CONNECT (1 / 3)) ........................................... 19
SCHEMATIC DIAGRAM 2 (MAIN (2 / 4 : POWER SUPPLY SECTION)) ..................................................... 20
SCHEMATIC DIAGRAM 3 (MAIN (3 / 4 : DECK SECTION) / HEAD) ........................................................... 21
SCHEMATIC DIAGRAM 4 (MAIN (4 / 4 : PRO LOGIC SECTION)) ............................................................. 22
SCHEMATIC DIAGRAM 5 (FAN) .................................................................................................................... 23
WIRING 2 (FRONT / CONNECT) .................................................................................................................... 24
SCHEMATIC DIAGRAM 6 (FRONT / CONNECT (2 / 3) / DECK / DECK MOTOR) ...................................... 25
WIRING 3 (OPERATE / KEY / MIC / LEDA ~ D) ........................................................................................... 26
SCHEMATIC DIAGRAM 7 (OPERATE / KEY / MIC / LEDA ~ D) ................................................................. 27
WIRING 4 (LOW AMP) ................................................................................................................................... 28
SCHEMATIC DIAGRAM 8 (LOW AMP) ......................................................................................................... 29
WIRING 5 (5CH AMP) ..................................................................................................................................... 30
SCHEMATIC DIAGRAM 9 (5CH AMP) .......................................................................................................... 31
WIRING 6 (VIDEO I/O / VIDEO JACK / VIDEO3 / SCART) ......................................................................... 32
SCHEMATIC DIAGRAM 10 (VIDEO I/O / VIDEO JACK / VIDEO3 / CONNECT (3 / 3)) ............................ 33
SCHEMATIC DIAGRAM 11 (SCART) ............................................................................................................. 34
WIRING 7 (TUNER) ......................................................................................................................................... 35
SCHEMATIC DIAGRAM 12 (TUNER) ............................................................................................................ 36
WIRING 8 (PT) ................................................................................................................................................. 37
SCHEMATIC DIAGRAM 13 (PT) .................................................................................................................... 38
WIRING 9 (DECK / DECK MOTOR / HEAD) .................................................................................................. 39
FL (BJ733GK) GRID ASSIGNMENT / ANODE CONNECTION / PIN CONNECTION ..................................... 40
FL (BJ734GK) GRID ASSIGNMENT / ANODE CONNECTION / PIN CONNECTION ..................................... 41
IC BLOCK DIAGRAM ................................................................................................................................... 42, 43
IC DESCRIPTION ....................................................................................................................................... 44 ~ 46
ADJUSTMENT 1 <DECK / FRONT> ............................................................................................................... 47
ADJUSTMENT 2 <TUNER> ............................................................................................................................ 48
MECHANICAL EXPLODED VIEW 1 / 1 ............................................................................................................ 49
MECHANICAL PARTS LIST 1 / 1 ..................................................................................................................... 50
TAPE MECHANISM EXPLODED VIEW 1 / 2 .................................................................................................. 51
TAPE MECHANISM PARTS LIST 1 / 2 ........................................................................................................... 52
TAPE MECHANISM EXPLODED VIEW 2 / 2 .................................................................................................. 53
TAPE MECHANISM PARTS LIST 2 / 2 ........................................................................................................... 54
SPEAKER DISASSEMBLY INSTRUCTIONS .................................................................................................... 55
SPEAKER PARTS LIST ..................................................................................................................................... 56
ACCESSORIES / PACKAGE LIST ..................................................................................................................... 57
3
SPECIFICATIONS
Main unit CX-A1000
<FM Tuner section>
Tuning range
87.5 MHz to 108 MHz
Usable sensitivity (IHF)
16.8 dBf
Antenna terminal
75 ohms (unbalanced)
<MW Tuner section>
Tuning range
530 kHz to 1710 kHz (10 kHz step)
531 kHz to 1602 kHz (9 kHz step)
Usable sensitivity
350
µV/m
Antenna
Loop antenna
<LW Tuner section>
Tuning range
144 kHz to 290 kHz
Usable sensitivity
1400
µV/m
Antenna
Loop antenna
<Amplifier section>
Mid-high frequency amplifier
Power output
Front
Rated: 80 W + 80 W
(8 ohms, T.H.D. 1 %, 200 Hz-20 kHz)
Reference: 100 W + 100 W
(8 ohms, T.H.D. 10 %, 200 Hz-20 kHz)
Rear (Surround)
Rated: 80 W + 80 W (8 ohms,
T.H.D. 1 %, 1 kHz)
Reference: 100 W + 100 W
(8 ohms, T.H.D. 10 %, 1 kHz)
EZ:
DIN MUSIC POWER: 160 W+60W
Center
Rated: 80 W (8 ohms, T.H.D. 1 %,
1 kHz)
Reference: 100 W (8 ohms,
T.H.D. 10 %, 1 kHz)
Total harmonic distortion
0.15 % (40 W, 1 kHz, 8 ohms,
DIN AUDIO/Front)
Low frequency + Sub woofer amplifier
Power output
Rated: 200 W + 200 W (6 ohms,
T.H.D. 1 %, 100 Hz)
Reference: 250 W + 250 W
(6 ohms, T.H.D. 10 %, 100 Hz)
EZ:
DIN MUSIC POWER: 320 W+320 W
Total harmonic distortion
0.15 % (100 W, 100 Hz, 6 ohms,
DIN AUDIO/Front)
Inputs
AUX: 310 mV
PHONO: 400 mV
VIDEO1, VIDEO2, VIDEO3: 310 mV
5.1CH INPUT (adjustable)
FRONT: 300 mV
SURROUND: 300 mV
CENTER: 600 mV
SUB WOOFER: 300 mV
MIC1, MIC2: 1.4 mV (20 kohms)
Outputs
CD DIGITAL OUT (OPTICAL)
SPEAKERS:
LOW + SUB WOOFER: 6 ohms
HIGH: 8 ohms
SURROUND SPEAKERS: accept
speakers of 8 16 ohms
CENTER SPEAKER: accepts
speaker of 8 ohms or more
PHONES (stereo jack): accepts
headphones of 32 ohms or more
<Cassette deck section>
Track format
4 tracks, 2 channels stereo
Frequency response
CrO2 tape: 50 Hz 16000 Hz
Normal tape: 50 Hz 15000 Hz
Signal-to noise ratio
60 dB (Dolby B NR ON, CrO2 tape
peak level, above 400 Hz)
Recording system
AC bias
Heads
Recording/playback head x 1,
erase head x 1
<Compact disc player section>
Laser
Semiconductor laser (
=780 nm)
D/A converter
1 bit dual
Signal-to-noise ratio
85 dB (1 kHz, 0 dB)
Harmonic distortion
0.03 % (1 kHz, 0 dB)
<General>
Power requirements
230 V AC, 50 Hz
Power consumption
350 W
Dimensions of main unit
360 x 372 x 423 mm
(W x H x D)
Weight of main unit
18.5 kg
Speaker system SX-WA1000
Cabinet type
4 way, built-in subwoofer
Speakers
Subwoofer:
220 mm cone type
Woofer:
160 mm cone type
Tweeter:
60 mm cone type
Super tweeter: 20 mm ceramic type
Impedance
6 ohms / 8 ohms
Output sound pressure level 89 dB/W/m
Dimensions (W x H x D)
250 x 592 x 300 mm
Weight
11.7 kg
Speaker system SX-R1800
Speakers
Full-range: 100 mm x 1, cone type
Impedance
8 ohms
Dimensions (W x H x D)
120 x 230 x 175 mm
Weight
1.9 kg
Speaker system SX-C1800
Speakers
Full-range: 100 mm x 2, cone type
Impedance
8 ohms
Dimensions (W x H x D)
430 x 120 x 175 mm
Weight
2.7 kg
· Design and specifications are subject to change without notice.
· Manufactured under license from Dolby Laboratories Licensing
Corporation.
"DOLBY", the double-D symbol
and "PRO LOGIC" are
trademarks of Dolby Laboratories Licensing Corporation.
· The word "BBE"and the "BBE symbol" are trademarks of BBE
Sound, Inc.
Under license from BBE Sound,Inc.
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.
solder
(KSM 880CAB)
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 the right figure.
Precaution to replace Optical block
PICKUP Assy P.C.B.
5
NOTE ON BEFORE STARTING REPAIR
Charging voltage (V)
Discharging
Rated power (W)
Parts number
(C101, 102)
resistor (
)
25-48
100
3
87-A00-247-090
49-140
220
5
87-A00-232-090
Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check the
reference numbers of the charging capacitors on schematic diagram before starting the discharging work.
2. Check items before exchanging the MICROCOMPUTER
Be sure to check the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirming
that the MICROCOMPUTER is surely defective.
2-1. Regarding the HOLD terminal of the MICROCOMPUTER
When the HOLD terminal (INPUT) of the MICROCOMPUTER is "H", the MICROCOMPUTER is judged to be operating correctly.
When this terminal is "L", the main power cannot be turned on. Therefore, be sure to check the terminal voltage of the HOLD
terminal before exchange.
When the MICROCOMPUTER is not defective, the HOLD terminal can also go "L" when the POWER AMPLIFIER has any
abnormalities that triggers the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to "L".
· Good or no good judgement of the MICROCOMPUTER
1
1
1
1
1 Turn on the AC main power.
2
2
2
2
2 Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the "H" level or not.
3
3
3
3
3 When the HOLD terminal is "L" level, the abnormality detection circuit is judged to be working correctly and the
MICROCOMPUTER is judged to be good.
1. Forced discharge of electrolytic capacitor of power supply block
When repair is going to be attempted in the set that uses relay circuit in the power supply block, electric potential is kept charged across
the electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defect
can occur.
In order to prevent the secondary trouble, perform the following measures before starting repair work.
Discharge procedure
1
1
1
1
1 Remove the AC power cord.
2
2
2
2
2 Connect a discharging resistor at an end of lead wire that
has clips at both ends. Connect the other end of the lead
wire to metal chassis.
3
3
3
3
3 Contact the other end of the discharging resistor to the
positive (+) side (+VH) of C101. (For two seconds)
4
4
4
4
4 Contact the same end of the discharging resistor as step
3
3
3
3
3 to the negative (-) side (-VH) of C102 in the same way.
(For two seconds)
5
5
5
5
5 Check that voltage across C101 and C102 has decreased
to 1 V or less using a multimeter or an oscilloscope.
Select a discharging resistor referring to the following table.
Fig-1
MAIN C.B
D101
C101
C102
22
3
4