Aiwa Xs-ds70 User manual

SERVICE MANUAL

DATA

XS-DS70

U

COMPACT DISC STEREO SYSTEM

S/M Code No. 09-016-445-2R1

REVISION

BASIC CD MECHANISM : BZG-5 ZD3NM

• This Service Manual is the “Revision Publishing” and replace “Simple Manual”

XS-DS70<U>, (S/M Code No. 09-014-445-2T1).

• If requiring information about the CD mechanism, see Service Manual of

BZG-5, (S/M Code No. 09-00C-353-3N2).

XS–DS70

SPEAKERSYSTEM

SX–GDS70CX–GDS70

REMOTE

CONTROLLER

RC–BAS06 VS

CD

RECEIVER

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TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

• 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.

• Manufactured under license from Dolby Laboratories Licensing

Corporation.

"DOLBY", the double-D symbol and "PRO LOGIC" are trademarks

of Dolby Laboratories Licensing Corporation.

 2 

SPECIFICATIONS

MAIN UNIT CX-GDS70

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: Front:

60 W + 60 W (50 Hz – 20 kHz,

THD less than 1 %, 8 ohms)

75 W + 75 W (1 kHz,

THD less than 10 %, 8 ohms)

Rear (Surround):

60 W + 60 W (1 kHz,

THD less than 1 %, 8 ohms)

75 W + 75 W (1 kHz,

THD less than 10 %, 8 ohms)

Center:

60 W (1 kHz, THD less than 1 %, 8 ohms)

75 W (1 kHz, THD less than 10 %, 8 ohms)

Total harmonic distortion:

0.1 % (30 W, 1 kHz, 8 ohms,

DIN AUDIO/Front)

Inputs: VIDEO/AUX: 300 mV (adjustable)

DIGITAL IN (PCM/DOLBY DIGITAL)

OPTICAL (VIDEO): Linear PCM

signals (32 kHz, 44.1 kHz and 48 kHz)

and Dolby Digital bitstream

Outputs: FRONT SPEAKERS: 8 ohms or more

SURROUND SPEAKERS: 8 to 16 ohms

CENTER SPEAKER: 8 ohms or more

SUB WOOFER: 1 V

PHONES: 32 ohms or more

CD PLAYER

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)

GENERAL

Power requirements: 120 V AC, 60 Hz

Power consumption: 110 W

Power consumption in standby mode:

With ECO mode on: 0.6 W

With ECO mode off: 30 W

Dimensions (W x H x D): 260 x 271.5 x 364 mm

(10 1/4x 10 3/4x 14 3/8in.)

Weight: 7.5 kg (16 lbs 9 oz)

FIVE SURROUND SPEAKERS SYSTEM SX-GDS70

(FRONT, SURROUND and CENTER SPEAKERS)

Speaker system: 1 way (magnetic shielded)

Speaker units: 80 mm (3 1/4in.) cone

Impedance: 8 ohms

Dimensions (W x H x D): 100 x 220 x 115 mm

(4 x 8 3/4x 4 5/8in.) (with pedestal)

100 x 110 x 115 mm

(4 x 4 3/8x 4 5/8in.) (without pedestal)

Weight: 0.55 kg (1 lbs 3 oz)

*The surround speakers are not magnetic shielded.

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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.

BESURETOOBSERVEFROMADISTANCEOFMORE

THAN30cmFROMTHESURFACEOFTHEOBJECTIVE

LENS ON THE OPTICAL PICK-UP BLOCK.

Caution: Invisible laser radiation when

open and interlocks defeated avoid

exposure to beam.

sAdvarsel: Usynliglaserståling vedåbning,

nårsikkerhedsafbrydereerudeaffunktion.

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.

CLASS 1 LASER PRODUCT

KLASSE 1 LASER PRODUKT

LUOKAN 1 LASER LAITE

KLASS 1 LASER APPARAT

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

Usynliglaserstålingvedåbning,nårsikkerhedsafbrydereer

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.

 3 

PICK-UP ASSY PWB

Solder

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TEL 13942296513 QQ 376315150 892498299

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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

WhentheHOLDterminal (INPUT) of the MICROCOMPUTER is “H”,theMICROCOMPUTERis 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

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34

–4 –

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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: ThereferencenumberorMICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113)canchangedepending

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

VSS

VDD

C113 *

%

C113

18

15

Short with tweezers.

–5 –

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– 6 –

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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– 7 –

5) Remove the PANEL, LEFT.

6) Remove the ten screws (1) and remove the CABI, REAR

(2).

7) Remove the three FFCs (1), (2), (3).

8) Remove the two screws (1) .

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– 8 –

10) 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.

9) Remove the three screws (1), (2), (3), and remove the

PWB, MAIN (5) after remove the FFC (4).

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– 9 –

PHASES ALIGNMENT

JOIN

GEAR, RELAY WINDOW

b

GEAR RELAY

1) APPLY GREASE

(FG-87H) BOTH

SIDE of the RIB.

c

a

* MOUNT in order.

1), 2).

2) MOUNT GEAR, RELAY

WINDOW to put together

b and c.

*Align the position "b"

with position "c".

1mm

a, b STEP

APPLY CFD-409 on the RAIL

(From top to BOTTOM)

JOIN with

RACK

1

2

1) Engage the gear so that the HDLR.

MECH ASSY comes to the same

height as the top (0 portion) of HLDR.

WINDOW.

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KANRI

NO.

REF. NO. DESCRIPTIONPART NO. KANRI

NO.

REF. NO. DESCRIPTIONPART NO.

ELECTRICAL MAIN PARTS LIST

 10 

IC

8B-NCJ-645-010 C-IC,LC877264V-5V51

87-A21-893-040 C-IC,NJM4558V-TE2

87-A21-831-010 IC,SPS-422-1-F1

87-A21-703-040 C-IC,SN74LV244APW

87-A21-916-040 C-IC,SN74LV125APW

87-A21-884-030 C-IC,CS4228A

87-A21-882-030 C-IC,M62466FP

87-070-289-040 IC,BU 2092F

87-A21-883-030 C-IC,CS8415A

87-A20-921-040 C-IC,SN74LVU04APW

87-A20-870-010 IC,GP1F37

87-A21-885-030 C-IC,CS49326

87-A21-695-010 IC,LA1845L

87-A21-928-010 IC,LC72131D-N

87-020-903-010 IC,NJM7805FA

T ANSISTO

87-A30-559-010 T ,CSB1370EF

87-026-610-080 T ,KTC3198G

87-A30-076-080 C-T ,2SC3052F

87-A30-075-080 C-T ,2SA1235F

87-A30-495-080 T ,2SA1981Y

87-A30-490-080 C-T ,K C107S

87-A30-190-080 T ,CC5551

87-A30-086-040 C-T ,CSD1306E

87-A30-529-010 T ,2SD2642

87-A30-528-010 T ,2SB1686

87-A30-107-070 C-T ,CMBT5401

87-A30-105-080 C-T , T1P 441C

87-A30-494-080 T ,2SA1980G

87-A30-484-080 C-T ,K A102S

87-A30-106-040 C-T ,CMBT5551

87-A30-214-010 T ,2SB1344

87-A30-215-010 T ,2SD2025

87-A30-162-010 FET,2SK2937

87-A30-063-080 C-T ,K A104S

87-A30-520-080 T ,2SC5342Y

87-A30-515-080 T ,2SA1979O/Y

89-213-702-010 T ,2SB1370E

87-A30-087-080 C-FET,2SK2158

87-A30-234-080 T ,CSC4115BC

89-327-143-080 T ,2SC2714

87-A30-489-080 C-T ,K A107S

DIODE

87-A40-839-090 DIODE,G5SBA60L-6088

87-A40-673-090 DIODE,D10XB20

87-A40-291-080 DIODE,1N4148(CPT)

87-A40-764-080 ZENE ,UZ10BSC

87-A40-553-080 DIODE,1N4003 LES

87-A40-270-080 C-DIODE,MC2838

87-A40-269-080 C-DIODE,MC2836

87-A40-488-080 DIODE,1SS244

87-A40-748-080 ZENE ,UZ5.6BSA

87-070-136-080 ZENE ,MTZJ5.1B

87-A40-749-080 ZENE ,UZ5.6BSB

87-A40-370-090 DIODE, K46-P20

87-A40-745-080 ZENE ,UZ4.7BSA

87-017-149-080 ZENE ,HZS6A2L

MAIN C.B

C1 87-A12-782-090 CAP,E 4700-25 M 85 SK

C2 87-A12-782-090 CAP,E 4700-25 M 85 SK

C5 87-012-368-080 C-CAP,S 0.1-50 F

C6 87-012-368-080 C-CAP,S 0.1-50 F

C7 87-012-368-080 C-CAP,S 0.1-50 F

C8 87-012-368-080 C-CAP,S 0.1-50 F

C9 87-012-368-080 C-CAP,S 0.1-50 F

C10 87-012-368-080 C-CAP,S 0.1-50 F

C11 87-012-368-080 C-CAP,S 0.1-50 F

C12 87-012-368-080 C-CAP,S 0.1-50 F

C23 87-A12-383-000 CAP,E 3300-65 M 85 IV LELON

C24 87-A12-383-000 CAP,E 3300-65 M 85 IV LELON

C32 87-012-286-080 CAP, U 0.01-25

C33 87-A12-062-080 CAP,E 100-10 SMG

C34 87-A12-095-080 CAP,E 100-50 SMG

C35 87-A12-076-080 CAP,E 22-35 SMG

C36 87-A12-068-080 CAP,E 470-16 SMG

C40 87-012-286-080 CAP, U 0.01-25

C41 87-A10-831-080 CAP,E 1000-25 M SMG

C60 87-A12-089-080 CAP,E 3.3-50 SMG

C63 87-A12-071-080 CAP,E 47-25 SMG

C81 87-A10-918-080 CAP,E 100-16 SMG

C101 87-A12-087-080 CAP,E 1-50 SMG

C102 87-A12-087-080 CAP,E 1-50 SMG

C111 87-A12-088-080 CAP,E 2.2-50 SMG

C112 87-A12-088-080 CAP,E 2.2-50 SMG

C113 87-010-075-040 CAP,E 10-16 M 5L S E

C121 87-A12-088-080 CAP,E 2.2-50 SMG

C122 87-A12-086-080 CAP,E 0.47-50 SMG

C129 87-018-209-080 CAP,TC U 0.1-50 Z F

C145 87-012-368-080 C-CAP,S 0.1-50 F

C146 87-012-368-080 C-CAP,S 0.1-50 F

C147 87-012-368-080 C-CAP,S 0.1-50 F

C148 87-012-368-080 C-CAP,S 0.1-50 F

C170 87-012-278-080 C-CAP,U 2200P-50 B

C171 87-012-282-080 CAP, U 4700P-50

C173 87-010-759-080 C-CAP,U, 0.1-25F

C201 87-012-280-080 CAP, U 3300P-50

C202 87-012-280-080 CAP, U 3300P-50

C203 87-A12-084-080 CAP,E 0.22-50 SMG

C204 87-A12-084-080 CAP,E 0.22-50 SMG

C205 87-012-282-080 CAP, U 4700P-50

C206 87-012-282-080 CAP, U 4700P-50

C207 87-A12-090-080 CAP,E 4.7-50 SMG

C208 87-A12-090-080 CAP,E 4.7-50 SMG

C209 87-016-615-080 C-CAP,U 2.2P-50CH

C210 87-016-615-080 C-CAP,U 2.2P-50CH

C211 87-A12-078-080 CAP,E 47-35 SMG

C212 87-A12-078-080 CAP,E 47-35 SMG

C215 87-012-273-080 C-CAP,U 820P-50 B

C216 87-012-273-080 C-CAP,U 820P-50 B

C217 87-A10-596-080 C-CAP,S 100P-100 J CH

C218 87-A10-596-080 C-CAP,S 100P-100 J CH

C219 87-012-368-080 C-CAP,S 0.1-50 F

C220 87-012-368-080 C-CAP,S 0.1-50 F

C221 87-012-286-080 CAP, U 0.01-25

C222 87-012-286-080 CAP, U 0.01-25

C223 87-A10-596-080 C-CAP,S 100P-100 J CH

C224 87-A10-596-080 C-CAP,S 100P-100 J CH

C273 87-010-759-080 C-CAP,U, 0.1-25F

C274 87-010-405-080 CAP, ELECT 10-50V

C275 87-010-405-080 CAP, ELECT 10-50V

C619 87-012-368-080 C-CAP,S 0.1-50 Z F

C633 87-012-281-080 C-CAP,U 3900P-50 B

C634 87-016-369-080 C-CAP,S 0.033-25 B K

C635 87-012-281-080 C-CAP,U 3900P-50 B

C636 87-016-369-080 C-CAP,S 0.033-25 B K

C637 87-A12-088-080 CAP,E 2.2-50 SMG

C638 87-A12-088-080 CAP,E 2.2-50 SMG

C656 87-A10-260-080 C-CAP,U 0.1-16 K B

C675 87-012-282-080 CAP, U 4700P-50

C676 87-012-282-080 CAP, U 4700P-50

C683 87-A11-969-080 C-CAP,U 0.082U-16 K B

C684 87-A12-075-080 CAP,E 10-35 SMG

C686 87-010-759-080 C-CAP,U, 0.1-25F

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