Aiwa NSX-VC720 Service Manual
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Aiwa NSX-VC720 Service Manual

Aiwa NSX-VC720 Service Manual

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3 7 63 1515 0
SERVICE MANUAL
TE
L 13942296513
COMPACT DISC
STEREO SYSTEM
• This Service Manual is the “Revision Publishing” and replaces
“Simple Manual” of NSX-VC720 <HR>, (S/M Code No. 09-01A-450-0T1).
• If requiring information about the CD mechanism, see Service Manual of
BZG-5, (S/M Code No. 09-00C-353-3N8).
www
.
http://www.xiaoyu163.com
CD
SYSTEM
CASSEIVER
NSX-VC720
CX-NVC720
x
ao
y
i
S/M Code No. 09-01B-450-0R1
http://www.xiaoyu163.com
NSX-VC720
8
Q Q
3
6 7
1 3
BASIC TAPE MECHANISM : 2ZM-3MK2 PR9NM
BASIC CD MECHANISM : BZG-5 MVSD3NM
SPEAKER
SX-WNSZ700
SX-R290
(OPTIONAL)
u163
.
2 9
9 4
2 8
1 5
0 5
8
2 9
9 4
REMOTE
CONTROLLER
RC-BAS07 VS
m
co
HR
9 9
2 8
9 9

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Summary of Contents for Aiwa NSX-VC720

  • Page 1 RC-BAS07 VS (OPTIONAL) • This Service Manual is the “Revision Publishing” and replaces “Simple Manual” of NSX-VC720 <HR>, (S/M Code No. 09-01A-450-0T1). • If requiring information about the CD mechanism, see Service Manual of BZG-5, (S/M Code No. 09-00C-353-3N8). u163 S/M Code No.

  • Page 2: Cassette Deck

    http://www.xiaoyu163.com SPECIFICATIONS 3 7 63 1515 0 GENERAL MAIN UNIT CX-NVC720 Power requirements 120 V / 220 – 230 V / 240 V AC TUNER (Switchable), 50 Hz / 60 Hz FM tuning range 87.5 MHz to 108 MHz Power consumption 170 W FM usable sensitivity (IHF) 13.2 dBf...

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

    http://www.xiaoyu163.com PROTECTION OF EYES FROM LASER BEAM DURING SERVICING 3 7 63 1515 0 CAUTION This set employs laser. Therefore, be sure to follow carefully 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

    http://www.xiaoyu163.com NOTE ON BEFORE STARTING REPAIR 1. Forced discharge of electrolytic capacitor of power supply block 3 7 63 1515 0 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 http://www.xiaoyu163.com 3 7 63 1515 0 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: Electrical Main Parts List

    http://www.xiaoyu163.com ELECTRICAL MAIN PARTS LIST 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 87-010-759-080 C-CAP,U 0.1-25F 87-A12-383-000 CAP,E 3300-65 M 85 IV LELON 8B-NHJ-631-030 C-IC,LC866560W-5Y61 87-A12-383-000 CAP,E 3300-65 M 85 IV LELON 87-A21-831-010 IC,SPS-422-1-F1 87-A12-780-090...
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C409 87-012-278-080 C-CAP,U 2200P-50 B C815 87-A12-086-080 CAP,E 0.47-50 SMG C410 87-012-278-080 C-CAP,U 2200P-50 B C816 87-A12-086-080 CAP,E 0.47-50 SMG C411 87-A12-091-080 CAP,E 10-50 SMG C821 87-A12-091-080...
  • Page 8 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION CF832 87-008-261-010 FILTER,CF SFE10.7MA5-A 87-012-195-080 C-CAP,U 100P-50CH CN301 87-A60-620-010 CONN,3P V 2MM JMT 87-012-195-080 C-CAP,U 100P-50CH CN351 87-A60-625-010 CONN,8P V 2MM JMT 87-012-195-080 C-CAP,U 100P-50CH CN501...
  • Page 9 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION J502 87-A61-242-010 JACK,6.3 BLK MONO W/SW V KM MOTOR C.B L151 87-A50-656-010 COIL,CLK 5.76MHZ (TOKO)7KLY LED401 87-A40-589-040 LED,SLR-56VCT31 RED CN912 87-099-210-010 CONN,5P H BLK 6216 S162 87-A91-645-010 SW,RTRY EC12E24304NON-CLICK...

  • Page 10: Chip Resistor Part Code

    http://www.xiaoyu163.com 3 7 63 1515 0 CHIP RESISTOR PART CODE Chip Resistor Part Coding Figure Resistor Code Value of resistor Chip resistor Dimensions (mm) Symbol Wattage Type Tolerance Resistor Code Form 1/16W 1005 0.35 1/16W 1608 0.45 1/10W 2125 1.25 0.45 1/8W 3216...
  • Page 11 http://www.xiaoyu163.com WIRING – 1 (MAIN / FAN) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 11 – http://www.xiaoyu163.com...
  • Page 12 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 1 (MAIN 1 / 2 : AMP SECTION / HEAD) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 –...
  • Page 13 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 2 (MAIN 2 / 2 : TUNER SECTION) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 13 – http://www.xiaoyu163.com...
  • Page 14 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 3 (FAN) 3 7 63 1515 0 L 13942296513 u163 – 14 – http://www.xiaoyu163.com...
  • Page 15 http://www.xiaoyu163.com WIRING – 2 (FRONT / MOTOR / BOX SW) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 15 – http://www.xiaoyu163.com...
  • Page 16 http://www.xiaoyu163.com WIRING – 3 (M-OP-PANEL / S-OP-PANEL) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 16 – http://www.xiaoyu163.com...
  • Page 17 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 4 (FRONT / MOTOR / BOX SW / M – OP – PANEL / S – OP – PANEL / DECK) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 –...
  • Page 18 http://www.xiaoyu163.com WIRING – 4 (PT) 3 7 63 1515 0 L 13942296513 u163 – 18 – http://www.xiaoyu163.com...

  • Page 19: Schematic Diagram - 5 (Pt)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 5 (PT) 3 7 63 1515 0 L 13942296513 u163 – 19 – http://www.xiaoyu163.com...
  • Page 20 http://www.xiaoyu163.com WIRING – 5 (DECK / HEAD-1 / HEAD-2) 3 7 63 1515 0 L 13942296513 u163 – 20 – http://www.xiaoyu163.com...
  • Page 21 http://www.xiaoyu163.com IC BLOCK DIAGRAM 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 21 – http://www.xiaoyu163.com...
  • Page 22 http://www.xiaoyu163.com FL (BJ815GNK) GRID ASSIGNMENT AND ANODE CONNECTION GRID ASSIGNMENT 3 7 63 1515 0 L 13942296513 u163 – 22 – http://www.xiaoyu163.com...
  • Page 23 http://www.xiaoyu163.com ANODE CONNECTION 3 7 63 1515 0 L 13942296513 u163 – 23 – http://www.xiaoyu163.com...
  • Page 24 http://www.xiaoyu163.com IC DESCRIPTION IC, LC866560W-5Y61 3 7 63 1515 0 Pin No. Pin Name Description O-C-SHIFT Clock shift output for micro computer when tuner receiving broadcast. O-POWER Power control ON/OFF output. O-2PB DECK 2 / DECK 1 play output. O-PANE-LED Moving PANEL LED ON/OFF output (Not used).
  • Page 25 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Description SW/P18 SW diode input/FL segment P18 output. FM1/P17 FM1 diode input (Not used)/FL segment P17 output. PANO/P16 Panorama diode input (Not used)/FL segment P16 output. AM-9K/10K/P15 AM-9K/10K select diode input (Not used)/FL segment P15 output. CASINO/P14 Initial casino diode input (Not used)/FL segment P14 output.
  • Page 26 http://www.xiaoyu163.com ADJUSTMENT <TUNER / DECK / FRONT > < TUNER SECTION > 3 7 63 1515 0 1. Clock Frequency Check 6. SW Tracking Adjustment Settings : • Test point : TP5 (Lch), TP6 (Rch) Settings : • Test point : TP2 (CLK) Method : Set to MW 1602 kHz and check that the test point is •...
  • Page 27 http://www.xiaoyu163.com < DECK SECTION > < FRONT SECTION > 3 7 63 1515 0 1. Tape Speed Adjustment 1. Clock Adjustment Settings : • Test tape : TTA–100 Settings : • Test point : TP7 (K-SCAN), TP8 (GND) • Test point : TP5 (Lch), TP6 (Rch) •...

  • Page 28: Cd Test Mode

    http://www.xiaoyu163.com CD TEST MODE 3 7 63 1515 0 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 [CD TEST] is displayed. 2.
  • Page 29 http://www.xiaoyu163.com MECHANICAL EXPLODED VIEW 1 / 1 3 7 6 3 1 5 1 5 0 BZG-5 WIRE, BINDER FL401 HT-SINK, ASSY U WIRE, BINDER 1 3 9 4 2 2 9 6 5 1 3 15 I PLATE, PT 85 CHAS,MAIN w w w 2ZM-3MK2...

  • Page 30: Mechanical Parts List

    42 8A-NF8-007-010 PANEL,LEFT V-2 3 8B-NF7-003-210 BOX,CASS 1 REV 43 8B-NF7-039-010 PANEL,TOP V-2 BNFK 4 8B-NF7-004-210 BOX,CASS 2 REV 44 87-CE3-023-010 BADGE,AIWA 30N SILV 5 8A-NF8-281-010 SPR-T,EJECT 1 45 8B-NHJ-003-010 WINDOW,TRAY VCD 6 8A-NF8-282-010 SPR-T,EJECT 2 46 8B-NF7-005-010 PANEL,TRAY 7 8B-NHJ-004-010...
  • Page 31 http://www.xiaoyu163.com TAPE MECHANISM EXPLODED VIEW 1 / 1 3 7 6 3 1 5 1 5 0 PWB. PLATE SHLD,M3 1 3 9 4 2 2 9 6 5 1 3 GEAR PLAY GEAR PLAY PLATE SHLD,M3 w w w u 1 6 3 2ZM3M29 –...

  • Page 32: Tape Mechanism Parts List

    http://www.xiaoyu163.com TAPE MECHANISM PARTS LIST 1 / 1 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 1 82-ZM3-335-310 PULLEY,COUPLER M3 36 82-ZM3-340-010 SH,BELT D2 2 87-B10-043-010 W-P,0.99-4-0.25 SLT 37 82-ZM1-242-010 LVR,CAS 3 86-ZM1-206-010 BELT,MAIN L 38 82-ZM3-329-410...

  • Page 33: General Speaker Disassembly Instructions (For Reference)

    http://www.xiaoyu163.com GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) 3 7 63 1515 0 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.

  • Page 34: Speaker Parts List

    6 8B-NS8-602-010 SPKR,W 160R 35/4 7 8B-NS8-604-010 SPKR,M 100W 8 88-NSK-610-010 SPKR,CERAMIC ASSY 9 88-NS5-610-010 CORD,SPKR 10 8A-NSJ-006-010 BADGE,AIWA S35 SPEAKER PARTS LIST <SX – R290 (YSC,YJSC,YUSC)> REF. NO. PART NO. KANRI DESCRIPTION 1 8B-YS1-002-010 PROTECTOR,ASSY 2 8A-NSJ-006-010 BADGE,AIWA S35...
  • Page 35 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 9301978 9720501 921338 Printed in Singapore http://www.xiaoyu163.com...

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