Aiwa XS-G3 SERIES User manual

SERVICE MANUAL
DATA
COMPACT DISC
STEREO SYSTEM
BASIC TAPE MECHANISM : BZM-1 R1NM
BASIC CD MECHANISM : BZG-5 ZD3NM
XS-G3
XS-G4
XS-G5
U,LH,EZ,K
EZ
EZ,K
S/M Code No. 09-013-441-5R1
REVISION
SPEAKERSYSTEM CD
CASSEIVER
REMOTE
CONTROLLER
XS–G3(U,LH) RC–BAS11CX–G3 SX–G3
RC–BAS03XS–G3(EZ,K) CX–G3 SX–G3
RC–BAS11XS–G4(EZ) CX–G4 SX–G4
RC–BAS11XS–G5(EZ) CX–G5 SX–G5
RC–BAS03XS–G5(K) CX–G5 SX–G5
•This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
XS-G3 (U,LH,EZ,K) /XS-G4 (EZ) /XS-G5 (EZ,K), (S/M Code No. 09-012-441-5T1).
•If requiring information about the CD mechanisim, see Service Manual of BZG-5,
(S/M Code No. 09-00C-353-3N2)
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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– 2 –
SPECIFICATIONS
<FM tuner section>
Tuning range 87.5 MHz to 108 MHz
Usable sensitivity (IHF) EZ,K: 16.8 dBf
U,LH: 13.2 dBf
Antenna terminal 75 ohms (unbalanced)
<AM/MW tuner section>
Tuning range 531 kHz to 1602 kHz (9 kHz step)
530 kHz to 1710 kHz (10 kHz step)
Usable sensitivity 350 µV/m
Antenna Loop antenna
<LW tuner section><EZ,K>
Tuning range 144 kHz to 290 kHz
Usable sensitivity 1400 µV/m
Antenna Loop antenna
<Amplifier section>
Power output EZ,K:
Rated: 40 W + 40 W (6 ohms,
T.H.D. 1 %, 1 kHz/DIN45500)
Reference: 50 W + 50 W (6 ohms,
T.H.D. 10 %, 1 kHz/DIN45324)
EZ:
DIN MUSIC POWER: 121 W + 121 W
U: 60 W + 60 W (50 Hz – 20 kHz,
T.H.D. less than 1 %, 6 ohms)
75 W + 75 W (1 kHz, T.H.D. less than
10 %, 6 ohms)
LH:
Rated: 60 W + 60 W (6 ohms,
T.H.D. 1 %, 1 kHz)
Reference: 75 W + 75 W (6 ohms,
T.H.D. 10 %, 1 kHz)
Total harmonic distortion EZ,K:
0.08 % (25 W, 1 kHz, 6 ohms, DIN
AUDIO)
U,LH:
0.08 % (30 W, 1 kHz, 6 ohms, DIN
AUDIO)
Inputs VIDEO/AUX: 500 mV
LH ONLY: MIC: 1.7mV (10 kohms)
Output SPEAKERS: 6 ohms or more
PHONES: 32 ohms or more
<Cassette deck section>
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
<Compact disc player section>
Laser Semiconductor laser (λ =780 nm)
D/A converter 1 bit dual
Signal-to-noise ratio 85 dB (1 kHz, 0 dB)
Harmonic distortion 0.05 % (1 kHz, 0 dB)
<Speaker system SX–G3 / SX–G4>
Speaker system 2 way, bass reflex (magnetic shielded)
Speaker units Woofer: 140 mm cone
Tweeter: 60 mm cone
Impedance 6 ohms
Dimensions (W xH xD) 165 x 328 x 225 mm
Weight 3.5 kg
<Speaker system SX–G5>
Speaker system 2 way, bass reflex (magnetic shielded)
Speaker units Woofer: 140 mm cone
Tweeter: 60 mm cone
Impedance 6 ohms
Dimensions (W xH xD) 170 x 328 x 268 mm
Weight 3.8 kg
<General>
Power requirements EZ,K: 230 V AC, 50 Hz
U: 120 V AC, 60 Hz
LH: 120 V / 220 – 230 V / 240 VAC
(Switchable), 50 Hz / 60 Hz
Power consumption U: 65 W
LH: 85 W
EZ: 70 W
K: 78 W
Power consumption With ECO mode on: 0.6 W
in standby mode U,EZ,K: With ECO mode off: 17 W
LH: With ECO mode off: 18 W
Dimensions of main unit U,EZ,K: 260 x 271.5 x 355 mm
(W xH xD) (101/4x 103/4x 14 in.)
LH: 260 x 271.5 x 364 mm
Dimensions (W xH xD) 260 x 301 x 292 mm
Weight U,EZ,K: 6.5 kg (14 lbs 5 oz)
LH: 6.8 kg
• Design and specifications are subject to change without notice.
• The word "BBE"and the "BBE symbol" are trademarks of BBE
Sound, Inc.
Under license from BBE Sound,Inc.
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
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– 3 –
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.
sCaution: Invisible laser radiation when
open and interlocks defeated avoid
exposure to beam.
sAdvarsel: 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
(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.
PICK-UP Assy PWB
Solder
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NOTE ON BEFORE STARTING REPAIR
Charging voltage (V) Discharging Rated power (W) Parts number
(C101, 102) resistor (Ω)
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
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1Turn on the AC main power.
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2Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the “H” level or not.
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3When 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
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1Remove the AC power cord.
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2Connect 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.
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3Contact the other end of the discharging resistor to the
positive (+) side (+VH) of C101. (For two seconds)
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4Contact the same end of the discharging resistor as step
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3to the negative (-) side (-VH) of C102 in the same way.
(For two seconds)
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5Check 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
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not.
2-2. Regarding reset
There are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even though the AC power
cord is re-inserted, or the software reset (pressing the STOP key + POWER key) is performed.
When the above described phenomenon occurs, it can lead to wrong judgement as if the MICROCOMPUTER is defective and to
exchange the MICROCOMPUTER. In such a case, perform the forced-reset by the following procedure and check good or no
good of the MICROCOMPUTER.
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1Remove the AC power cord.
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2Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers.
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3Connect the AC power cord again. If the MICROCOMPUTER returns to the normal operation, the MICROCOMPUTER is
good.
Note: The reference number or MICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113) can change depending
on the models. Be sure to check the reference numbers on schematic diagram before starting the discharging work.
2-3. Confirmation of soldering state of MICROCOMPUTER
Check the soldering state of the MICROCOMPUTER in addition to the above described procedures. Be sure to exchange the
MICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself.
Fig-2-2
MICRO-
COMPUTER
MICROCOMPUTER
FRONT C.B
FRONT C.B
VSS
VDD
C113
*
%
C113
18
15
Short with tweezers.
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
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DISASSEMBLY INSTRUCTIONS
1. DISASSEMBLY OF MECHANISM DECK ASSY
1) Remove the three screws.
2) Remove the three screws.
3) Remove the four screws (1) and remove the PANEL,
TOP (2).
4) Remove the PANEL, RIGHT.
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5) Remove the PANEL, LEFT.
6) Remove the six screws (1) and remove the CABI, REAR
(2).
7) Remove the three FFCs (1), (2) (black) and (3), and
remove the connector (4).
8) Remove the three screws (1) and remove the PWB,
MAIN (2).
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9) Slide up slightly the WINDOW, DISP ASSY (1).
Insert a thin flathead screwdriver into the slide groove
and disengage the detents of the WINDOW, DISP ASSY
(2) (in the left and right sides) and remove the WINDOW,
DISP ASSY.
10) Remove the two FFCs (1) and (2), and the four screws
(3) and remove the MECH DECK ASSSY (4).
11)Remove the two screws (1) and remove the HLDR,
WINDOW (2).
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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12) Remove the four screws (1) and remove the BZM-1 (2).
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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2. INSTRUCTIONS FOR ASSEMBLING MECHANISM
DECK ASSY
1) Install the BZM-1 and rotate the GEAR, RELAY
clockwise until the BOX, CASS cannot move any more.
2) Install the HLDR, WINDOW so that the upper end of the
HLDR, WINDOW and the upper end of the MECH ASSY
can be almost aligned to the same height.
3) Rotate the GEAR, RELAY until the HLDR, WINDOW
goes to the lowest part and stops.
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com