Aiwa XS-G3 Service Manual
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Aiwa XS-G3 Service Manual

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SERVICE MANUAL
COMPACT DISC
STEREO SYSTEM
SYSTEM
XS–G3(U,LH)
XS–G3(EZ,K)
XS–G4(EZ)
XS–G5(EZ)
XS–G5(K)
• 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)
XS-G3
XS-G4
XS-G5
BASIC TAPE MECHANISM : BZM-1 R1NM
BASIC CD MECHANISM : BZG-5 ZD3NM
CD
SPEAKER
CASSEIVER
CX–G3
CX–G3
CX–G4
CX–G5
CX–G5
S/M Code No. 09-013-441-5R1
REMOTE
CONTROLLER
SX–G3
RC–BAS11
SX–G3
RC–BAS03
SX–G4
RC–BAS11
SX–G5
RC–BAS11
SX–G5
RC–BAS03
U,LH,EZ,K
EZ
EZ,K

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Summary of Contents for Aiwa XS-G3

  • Page 1 RC–BAS03 • 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)

  • Page 2: Specifications

    SPECIFICATIONS <FM tuner section> <Compact disc player section> Tuning range 87.5 MHz to 108 MHz Laser Semiconductor laser (λ =780 nm) Usable sensitivity (IHF) EZ,K: 16.8 dBf D/A converter 1 bit dual U,LH: 13.2 dBf Signal-to-noise ratio 85 dB (1 kHz, 0 dB) Antenna terminal 75 ohms (unbalanced) Harmonic distortion...

  • Page 3: Protection Of Eyes From Laser Beam During Servicing

    PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs laser. Therefore, be sure to follow carefully CAUTION the instructions below when servicing. Use of controls or adjustments or performance of proce- dures other than those specified herin may result in WARNING!! hazardous radiation exposure.

  • Page 4: Note On Before Starting Repair

    NOTE ON BEFORE STARTING REPAIR 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.
  • Page 5 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.

  • Page 6: Disassembly Instructions

    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. – 6 –...
  • Page 7 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).
  • Page 8 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).
  • Page 9 12) Remove the four screws (1) and remove the BZM-1 (2). – 9 –...
  • Page 10 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.
  • Page 11 PHASES ALIGNMENT 3) Mount GEAR, RELAY WINDOW to put together b and c. GEAR RELAY * Mount in order. Join 1), 2), 3). GEAR, RELAY WINDOW 2) APPLY GREASE (FG-87H) BOTH SIDE of the RIB. *Align the position "b" with position "c". 1) Turn GEAR RELAY until.

  • Page 12: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 87-010-196-080 CHIP CAPACITOR,0.1-25<LH> 87-010-759-080 C-CAP,U, 0.1-25F<U,EZ,K> 8B-NF8-645-010 C-IC,LC877256A-5V18<LH,U,K,3EZ> 87-010-196-080 CHIP CAPACITOR,0.1-25<LH> 8B-NF8-646-010 C-IC,LC877264V-5V24<4EZ,5EZ> 87-010-759-080 C-CAP,U, 0.1-25F<U,EZ,K> 87-A21-831-010 IC,SPS-422-1-F1 87-010-196-080 CHIP CAPACITOR,0.1-25<LH> 87-A21-419-040 C-IC,NJM14558MD-TE2 87-A21-893-040 C-IC,NJM4558V-TE2 87-010-759-080 C-CAP,U, 0.1-25F<U,EZ,K>...
  • Page 13 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C310 87-012-188-080 C-CAP,U 47P-50 CH C782 87-012-286-080 CAP, U 0.01-25 C313 87-012-284-080 CAP, U 6800P-50 C783 87-012-286-080 CAP, U 0.01-25 C314 87-012-284-080 CAP, U 6800P-50 C784 87-012-286-080 CAP, U 0.01-25 C315 87-A12-062-080 CAP,E 100-10 SMG...
  • Page 14 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C917 87-012-186-080 C-CAP,U 39P-50 CH<LH,U> L942 87-A50-019-010 COIL,OSC LW(COI)856KHZ<EZ,K> C918 87-A10-039-080 C-CAP,U 470P-50 J CH<LH,U> L951 8A-NF8-668-010 COIL,AM PACK 2(TOK)<EZ,K> C921 87-012-195-080 C-CAP,U 100P-50CH<LH,U> L951 8A-NF8-667-010 COIL,AM PACK 4(TOK)<LH,U> C922 87-012-174-080 CAP CHIP CERA SS 12P CHJ<LH,U>...
  • Page 15 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION FFC102 8B-NF8-655-010 FF-CABLE,15P 1.25 150MM BLACK R246 87-A00-440-050 RES,220-1/2W J RP<U> FFC103 88-908-451-110 FF-CABLE,8P 1.25 450MM R246 87-A00-441-050 RES,270-1/2W J RP<LH> FFC121 88-906-081-110 FF-CABLE,6P 1.25 80MM 87-A90-460-010 HLDR,WIRE 2.5-7P FFC251 88-908-451-110 FF-CABLE,8P 1.25 450MM...

  • Page 16: Chip Resistor Part Code

    REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION HEAD C.B CNA351 8B-NF8-654-010 CONN ASSY,8P (375) 87-A91-195-110 HEAD,RPH KC9142 FPC CHIP RESISTOR PART CODE Chip Resistor Part Coding Figure Resistor Code Value of resistor Chip resistor Dimensions (mm) Wattage Type Tolerance...
  • Page 17 WIRING – 1 (MAIN / JACK) <EZ, K> TO HEAD C . B (CLK) (VT) < E Z , K > (CNA 005) – 17 –...
  • Page 18 SCHEMATIC DIAGRAM _ 1 (MAIN 1 / 2 : AMP SECTION / HEAD) <EZ,K> – 18 –...

  • Page 19: Schematic Diagram _ 2 (Main 2 / 2 : Tuner Section)

    SCHEMATIC DIAGRAM _ 2 (MAIN 2 / 2 : TUNER SECTION) <EZ,K> – 19 –...
  • Page 20 WIRING – 2 (MAIN / JACK / FAN) <U, LH> TO HEAD C . B (CLK) (VT) <U , LH> – 20 –...
  • Page 21 SCHEMATIC DIAGRAM _ 3 (MAIN 1 / 2 : AMP SECTION / HEAD) <U,LH> – 21 –...
  • Page 22 SCHEMATIC DIAGRAM _ 4 (MAIN 2 / 2 : TUNER SECTION) <U,LH> – 22 –...
  • Page 23 SCHEMATIC DIAGRAM _ 3 (JACK) – 23 –...
  • Page 24 WIRING – 3 (FRONT) <1 / 2> – 24 –...
  • Page 25 WIRING – 3 (FRONT) <2 / 2> STBY-LED TP7 (K-SCAN) TP8(GND) STBY-LED TO DECK C . B CN 1 – 25 –...
  • Page 26 WIRING – 4 (TOP / MOTOR / MIC / KEY) (FFC 501) M 401 (MOTOR) – 26 –...
  • Page 27 SCHEMATIC DIAGRAM _ 5 (FRONT / TOP / KEY / MOT / MIC / DECK ) – 27 –...
  • Page 28 WIRING – 5 (PT) <U, EZ, K> – 28 –...
  • Page 29 SCHEMATIC DIAGRAM _ 6 (PT) <U> – 29 –...
  • Page 30 SCHEMATIC DIAGRAM _ 7 (PT) <EZ,K> – 30 –...
  • Page 31 WIRING – 6 (PT) <LH> <WHT> – 31 –...
  • Page 32 SCHEMATIC DIAGRAM _ 8 (PT) <LH> – 32 –...
  • Page 33 WIRING – 7 (DECK / HEAD) – 33 –...

  • Page 34: Ic Block Diagram

    IC BLOCK DIAGRAM – 34 –...
  • Page 35 LCD DISPLAY LCD, AIW4272 - 30PIN SEGMENT WIRING COMMON WIRING – 35–...
  • Page 36 IC DESCRIPTION IC, LC877256A-5V18 <U,LH,G3EZ,K> / IC, LC877264V-5V24 <4EZ,5EZ> Pin No. Pin Name Description O-CD CLK CD IC control clock output. O-LEDSTB STB signal make clock and data effective. O-DATA Data output. O-CLK Clock output. O-CDDATA CD IC control data output. O-INI-SCAN Initial scan output.
  • Page 37 Pin No. Pin Name Description 56 ~ 79 O-S25 ~ O-S48 LCD segment S25 ~ S48 output. I-CST2 DECK cassette detection switch data input. "L" : ON I-REB DECK side B recordable switch. "L" : REC I-CAM2 DECK CAM switch data input. "L" : ON 83 ~ 86 O-COM1 ~ O-COM4 LCD driver common.
  • Page 38 ADJUSTMENT <TUNER / DECK / FRONT> < TUNER SECTION > < DECK SECTION > 1. Clock Frequency Check 1. Tape Speed Check Settings : • Test tape : TTA–100 Settings : • Test point : TP2 (CLK) • Test point : TP5 (Lch), TP6 (Rch) Method : Set to AM 1710kHz (U,LH), MW 1602kHz (EZ,K) and check that the test point is 2160kHz ±...

  • Page 39: Cd Test Mode

    CD TEST MODE 1. How to Start the CD Test Mode While pressing the FUNCTION button, insert the AC plug to the power outlet. When the test mode is started, the message [TEST] is displayed. 2. How to Exit the CD Test Mode Press the POWER button or disconnect the AC plug.
  • Page 40 4. Displaying the Adjustment Result of the Automatic Adjustment Items The automatic adjustment values of the focus and tracking adjustment can be displayed on the screen. 4-1. Displaying the automatic adjustment result for the focus offset cancel and gain 1. Select the “Start” mode. ( All lights are turned on.) 2.

  • Page 41: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW 1 / 1 <U,LH,K> U--- 1 2 3 K--- BZM-1 PLATE,EARTH MECHA HT-SINK,FIN2 HT-SINK,FIN2 HLDR, HT-SINK HT-SINK, MAIN U 33 56 WIRE, HT-SINK, BINDER FIN2 CHAS,MAIN U W 4.2-6.8-0.18 PLATE,EARTH MIC BZG-5 W 4.2-6.8-0.18 CABI,BOTTOM – 41 –...

  • Page 42: Mechanical Parts List

    MECHANICAL PARTS LIST 1 / 1 <U,LH,K> REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 1 8B-NF8-008-010 PANEL,TRAY 39 8B-NF8-081-010 PANEL,TOP 2 8B-NF8-113-010 WINDOW,ASSY K GR G5<G5K> 40 8B-NF9-211-010 HLDR,TR S 2 8B-NF8-112-010 WINDOW,ASSY LH GR G3<G3K> 41 8A-NF9-208-010 HLDR,PWB PT<U,K>...
  • Page 43 MECHANICAL EXPLODED VIEW 1 / 1 <EZ> PLATE,EARTH BZM-1 MECHA WIRE, BINDER HLDR, HT-SINK WIRE, HT-SINK,FIN2 BINDER HT-SINK, MAIN U HLDR TR S WIRE, BINDER SH,LCD CHAS,MAIN U BZG-5 CABI,BOTTOM EZ – 43 –...
  • Page 44 MECHANICAL PARTS LIST 1 / 1 <EZ> REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 8B-NF8-008-010 PANEL,TRAY 87-045-305-010 MOTOR, RF-500TB DC-5V (2MA) 8B-NF8-112-210 WINDOW,ASSY LH GR G3<3EZ> 8B-NF8-081-110 PANEL,TOP 8B-NF8-116-210 WINDOW,ASSY EZ BL G5<5EZ> 8A-NF9-208-010 HLDR,PWB PT 8B-NF8-115-210 WINDOW,ASSY EZ BL G4<4EZ>...

  • Page 45: Tape Mechanism Exploded View

    TAPE MECHANISM EXPLODED VIEW 1 / 1 SH, 1.63-3.2 -0.5 SLT HLDR, MOTOR PLATE, SHLD MOTOR HLDR, IC – 45 –...

  • Page 46: Tape Mechanism Parts List

    TAPE MECHANISM PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 1 8Z-ZM1-271-010 PULLEY,MOT ZZM-1 31 82-ZM1-240-110 LVR,REC(*) 2 82-ZM1-354-010 BELT,SBU MAIN2 EPDM 32 82-ZM1-259-310 SPR-T,PINCH R 3 82-ZM1-234-310 FLY-WHL ASSY,L 33 82-ZM1-257-010 SPR-T,CAS 4 82-ZM1-226-010 GEAR,REW...

  • Page 47: General Speaker Disassembly Instructions (For Reference)

    GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) Type.1 Type.4 Insert a flat-bladed screwdriver into the position indicated by the TOOLS arrows and remove the panel. Remove the screws of each speaker 1 Plastic head hammer unit and then remove the speaker units. 2 (() flat head screwdriver 3 Cut chisel How to Remove the PANEL, FR...

  • Page 48: Speaker Parts List

    SPEAKER PARTS LIST <SX-G3 (YLSL,YUSL,Y1SL), SX-G4 (YSL)> REF. NO. PART NO. KANRI DESCRIPTION 1 8B-NSZ-001-010 PANEL, FR 2 8B-NSZ-002-010 PANEL, SP 3 8B-NSZ-003-010 PANEL, BA 4 8B-NSZ-004-010 PROTECTOR, SP<EXCEPT YSL> 4 8B-NSZ-009-010 PROTECTOR, SP G<YSL> 5 8B-NSZ-602-010 SPKR,W 140 30/4<YLSL> 5 8B-NSZ-604-010 SPKR,W 140 25/4<EXCEPT YLSL>...
  • Page 49 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 2000058 2000045 2000044 0251431 921338 Printed in Singapore...

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