Jvc-KSAX-3500-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2005 Victor Company of Japan, Limited No.MA172 2005/3 POWER AMPLIFIER MA17220053 KS-AX3500 TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SPEC

2、IFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 4ADJ

3、USTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、 . . 1-7 Area suffix J - Northern America E - Southern Europe U - Other Areas RadioFans.CN 收音机爱 好者资料库 1-2 (No.MA172) SPECIFICATION Design and specifi cations are subject to change without notice. Power Output55 W RMS 4 channels at 4 and or = 1% THD + N Signal-to-Noise Ratio86 dBA (reference: 1 W int

5、o 4 ) Maximum Power Output580 W Load Impedance4 (2 to 8 allowance) 4 (4 to 8 allowance) (Bridge mode) Frequency Response5 Hz to 50,000 Hz ( +0, -3 dB) Input Sensitivity/Impedance1 V/20 k (0.3 V to 6 V, variable) DistortionLess than 0.005% (at 1 kHz) Power RequirementDC 14.4 V (11 V to 16 V allowance

6、) Grounding systemNegative ground Dimensions (W/H/D)347 mm 54 mm 222 mm (13-11/16 in. 2-3/16 in. 8-3/4 in.) Mass (approx.)2.8 kg (6.2 lbs.) RadioFans.CN 收音机爱 好者资料库 (No.MA172)1-3 SECTION 1 PRECAUTION 1.1Safety Precautions ! Burrs formed during molding may be left over on some parts of the chassis. Th

7、erefore, pay attention to such burrs in the case of preforming repair of this system. RadioFans.CN 收音机爱 好者资料库 1-4 (No.MA172) SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.MA172)1-5 SECTION 3 DISASSEMBLY 3.1Main board 3.1.1Removing th

8、e main board (See Fig.1 to 4) (1) From the bottom of the amplifier, remove the seven screws A attaching the cover. (2) From the main body of the amplifier, remove the nine screws B and the screw C attaching the main board. (3) Remove the three screws D on top of the rear cover. (4) Remove the screw

9、E and the four screws F on the front side of the rear cover. Fig.1 Fig.2 Fig.3 Fig.4 A AA A B C B B D EF F 1-6 (No.MA172) SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT. (No.MA172)1-7 SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. (No.MA172) A

10、V connect it fi rmly with insulating tape. Be sure to leave an appropriate space between the antenna (aerial) and the wires of this unit. When replacing the fuse, only use a 25 A fuse for KS-AX3500 and 30 A fuse for KS-AX3300. Do not let pebbles, sand or metallic objects get inside the unit. To keep

11、 the heat dissipation mechanism running effectively, wipe the accumulated dust off periodically. Listening to the tape, radio, CD or MD, etc. with the volume on loud for a long period of time will exhaust the battery, while the engine is turned off or while the engine is idling. DO NOT disassemble t

12、he units since there are no user serviceable parts inside. KS-AX3300KS-AX3500 CAUTION To prevent short circuits while making connections, keep the batterys negative terminal disconnected. When using a power cord, be sure to place the 30 A fuse near the battery as shown. Connect the lead wire (purcha

13、sed separately) through which power is supplied directly to the batterys “” terminal only after all the other connections have been made. The lead wire connected to the + B terminal of this unit should have a cross-section of more than 5 mm2. Be sure to use a ring terminal (optional) for secure conn

14、ection. If you have any questions regarding the thickness of the power cord, etc., consult your nearest “JVC IN-CAR ENTERTAINMENT” car audio dealer. When connecting a unit without a remote lead (.), connect to the accessory circuit of the car which is activated by the ignition switch. In this case,

15、noise may occur when the car receiver is turned on or off. To avoid this noise, do not turn on or off the car receiver itself. You can turn on or off the car receiver along with the on/off operation of the ignition switch. If you use JVC car receiver with a remote lead (), connect to the REM termina

16、l on this unit. If the POWER/PROTECTOR lamp lights in red, it indicates incorrect speaker wiring or connections. In normal status, the POWER/PROTECTOR lamp lights in green. Make sure to correct speaker wiring and other connections. TERMINAL CONNECTIONS When making the terminal connections Properly f

17、i x the terminal with the screw provided by turning it in the direction as illustrated. Note When you tighten the screw, make sure that the screw is securely fi xed in place to prevent disconnection of the terminal. Avoid over-tightening as it may cause damage to the screw or its head slot. POWER SU

18、PPLY LVT1329-001A J/E/U CONTROLS KS-AX3300KS-AX3500 Crossover fi lter switch OFF: Normally, set to this position. (Preset to this position at the factory.) ON: (For LPF switch) Set to this position when you want to turn on the LPF (Low-pass fi lter) switch. You can use the following terminals for a

19、subwoofer system. KS-AX3500: REAR SPEAKER OUTPUT KS-AX3300: SPEAKER OUTPUT (For HPF switchonly for KS-AX3500) Set to this position when you want to turn on the HPF (High-pass fi lter) switch. The low frequency signals are not applied to the left/ right speaker when a subwoofer is connected. Input LE

20、VEL controller The input level can be adjusted with this control when this unit is connected to other source equipments. Turn it in the clockwise direction when the output level of the car audio seems low. For Customer Use: Enter below the Model No. and Serial No. which are located on the top or bot

21、tom of the cabinet. Retain this information for future reference. Model No. Serial No. SPEAKER SYSTEMS This amplifi er provides two types of speaker connections: Normal mode and Bridge mode. You can choose either type of connections depending on the speakers confi guration equipped on your car. Make

22、 sure to comply with the following notes: Be sure not to connect the “” terminals of the speakers to a common point. If the ground wire is common to both left/right and front/rear speaker wirings, this unit cannot be used. Always use the independent lead wires for the speakers to be used. In this ca

23、se, redo the wirings. Use the speakers with an impedance of 2 to 8 (4 to 8 : when used in Bridge mode). Use the speakers which have suffi cient power to the unit. EN_KS-AX3500_3300J_E_Uf.indd 1EN_KS-AX3500_3300J_E_Uf.indd 12004.12.21 5:19:41 PM2004.12.21 5:19:41 PM 2 KS-AX3300 SPECIFICATIONS Power O

24、utput KS-AX3500: 55 W RMS 4 channels at 4 and 1% THD + N KS-AX3300: 65 W RMS 2 channels at 4 and 1% THD + N Signal-to-Noise Ratio 86 dBA (reference: 1 W into 4 ) Maximum Power Output KS-AX3500: 580 W KS-AX3300: 320 W Load Impedance 4 (2 to 8 allowance) 4 (4 to 8 allowance) (Bridge mode) Frequency Re

25、sponse 5 Hz to 50,000 Hz ( +0, 3 dB) Input Sensitivity/Impedance 1 V/20 k (0.3 V to 6 V, variable) Distortion Less than 0.005% (at 1 kHz) Power Requirement DC 14.4 V (11 V to 16 V allowance) Grounding system Negative ground Dimensions (W/H/D) KS-AX3500: 347 mm 54 mm 222 mm (13-11/16 in. 2-3/16 in. 8

26、-3/4 in.) KS-AX3300: 259 mm 54 mm 172 mm (10-1/4 in. 2-3/16 in. 6-13/16 in.) Mass (approx.) KS-AX3500: 2.8 kg (6.2 lbs.) KS-AX3300: 1.6 kg (3.6 lbs.) Supplied Accessories Speaker input connector 1 Mounting Screw ( 4.0 20 mm (13/16 in.) 4 Design and specifi cations are subject to change without notic

27、e. LR LR LR LR TROUBLESHOOTING For more details, consult your “JVC IN-CAR ENTERTAINMENT” car audio dealer. The POWER/PROTECTOR lamp does not light. Confi rm if the fuse is blown. Confi rm if the ground lead is connected securely to a metal part of the car. Make sure that the equipment connected to t

28、his unit is turned on. Use a relay if your system employs too many amplifi ers. Confi rm the battery voltage (11 V to 16 V). The POWER/PROTECTOR lamp lights in red and/or the unit heats up abnormally. Confi rm if the impedance of the connected speaker is suitable. Confi rm if the speaker wirings are

29、 short-circuited. Leave the unit turned off for a while as it cools down. No sound is heard. Confi rm if the POWER/PROTECTOR lamp lights in green (see “POWER SUPPLY” on page 1). Is the remote turn-on line lead connected correctly? Are RCA pin cords connected to the LOW INPUT jacks? Is the speaker in

30、put connector from the receiver connected to the HIGH INPUT terminal? Is this amplifi er grounded? Alternator noise is heard. Keep the power connecting leads away from the RCA pin cords. Keep the RCA pin cords away from other electrical cables in the car. Confi rm if the ground lead is connected sec

31、urely to a metal part of the car. Confi rm if the negative speaker leads are touching the car chassis. Confi rm if the noise originates in the receiver. Replace the plugs or use plugs with load resistors. Connect a bypass capacitor across the accessory switches (horn, fan, etc.). Noise when connecte

32、d to AM (MW/LW) tuner. Move the speaker and power leads away from the antenna (aerial) lead. Depending on the manufacturer and model of the car, speaker wiring may have been fi nished when purchased. If the ground wire is common to both left and right speakers, this unit cannot be used. In this case

33、, redo the speaker wiring. When your receiver is equipped with Line Output, connect the Line Output (through the receiver) to the LOW INPUT jacks on this unit. When your receiver is NOT equipped with Line Output, connect the speaker connector (through the receiver) to the HIGH INPUT terminal on this

34、 unit. 2-speaker systemBRIDGE MODE* 2 4-speaker system 2-speaker system plus subwooferBRIDGE MODE* 2 2-speaker system L R 1-speaker systemBRIDGE MODE* 2 LR Subwoofer systemBRIDGE MODE* 2 SPEAKER CONNECTIONS Connection varies depending on the number of the speakers used in your car. Select the approp

35、iate connection referring to the diagrams below. Before connecting: Securely connect all the parts. If the connections are loose, due to contact resistance etc., heat will break out and may cause an accident. Secure and cover the cords with insulating tape and run them under the car mats. KS-AX3500

36、* 1 Not supplied for this unit. * 2 BRIDGE MODE: Be sure to connect the line output from the receiver to the left (L) jack on this unit. EN_KS-AX3500_3300J_E_Uf.indd 2EN_KS-AX3500_3300J_E_Uf.indd 22004.12.21 5:19:43 PM2004.12.21 5:19:43 PM SCHEMATIC DIAGRAMS POWER AMPLIFIER No.MA172SCH 2005/3 KS-AX3

37、500 COPYRIGHT 2005 Victor Company of Japan, Limited. Area suffix J - Northern America E - Southern Europe U - Other Areas Contents 2-1 2-2 2-3 Block diagram Standard schematic diagram Printed circuit board CD-ROM No.SML200503 ! Burrs formed during molding may be left over on some parts of the chassi

38、s. Therefore, pay attention to such burrs in the case of preforming repair of this system. Safety precaution 2-1 Block diagram CN901 IC801 IC901 SW801 HPF ON/OFF LEVEL IC803 IC805 CN903 FRONT OUTPUT REAR OUTPUT VR 801 IC802 SW802 LPF ON/OFF LEVEL IC804IC806 VR 802 CN902 HIGH INPUT LOW INPUT CN904 BA

39、TT REMOTE GNDLED901 T901 F901 25A F902 25A L+,L- R+,R- FRONT L+,L- R+,R- FRONT L+,L- R+,R- REAR L+,L- R+,R- REAR 2-2 Standard schematic diagram 2-3 Main board Printed circuit board (No.MA172SCH) Printed in Japan VPT AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi

40、-city,371-8543,Japan Victor Company of Japan, Limited 3-1 PARTS LIST * All printed circuit boards and its assemblies are not available as service parts. - Contents - Exploded view of general assembly and parts list (Block No.M1) Electrical parts list (Block No.01) Packing materials and accessories p

41、arts list (Block No.M3) KS-AX3500 3-2 3-4 3-8 Area suffix J - Northern America E - Southern Europe U - Other Areas MA172 3-2 Exploded view of general assembly and parts list Block No.M MM1 8 8 8 12 8 8 8 8 3 8 8 8 8 8 8 8 8 13 8 8 9 9 8 10 10 2 11 7 7 11 7 4 2 2 9 9 9 10 10 10 10 10 9 11 11 1 6 10 8

42、 8 8 5 F902 F901 Amp board 3-3 General Assembly Block No. M1MM Symbol No.Part No.Part NameDescriptionLocal 1A4265360-001-0HEAT SINK 2A1265345-001-0HEAT SINK SUB(x3) 3A1256475-001-0BUS BAR 4A3146067-001-AFRONT CHASSIS 5A2146068-001-0BOTTOM COVER 6A3247033-002-BPLATE 7A3292008-004-2SCREW2x8(x4) 8A3293

43、008-032-2SCREW3x8(x21) 9A2285199-003-0SCREW3x8(x6) 10A2285195-002-0SCREW3x8.5(x14) 11A3293008-002-7SCREW3x8(x6) 12A1236248-003-0RATING LABELE 12A1236248-001-0RATING LABELJ 12A1236248-002-0RATING LABELU 13A151-5190-025FUSE25A F901 F902(x2) 3-4 Electrical parts list AMP board Block No. 01 Symbol No.Pa

44、rt No.Part NameDescriptionLocal IC801NJM4565MICAC08-086-002 TE1 IC802NJM4565MICAC08-086-002 TE1 IC803NJM4565MICAC08-086-002 TE1 IC804NJM4565MICAC08-086-002 TE1 IC805NJM4565MICAC08-086-002 TE1 IC806NJM4565MICAC08-086-002 TE1 IC901UPC494GS-E1-AICAC08-004-002 IC902PS2501-1ICA149-5233-008 Q1012SC3326TRA

45、NSISTOR AC04-083-003 TE85R F Q1022SA1618TRANSISTOR AC04-178-003 TE85L F Q1032SC4207TRANSISTOR AC04-177-004 TE85L F Q1042SA988FTRANSISTORAT04-095-005 Q1052SC1841FTRANSISTORAT04-094-005 Q1062SD637TRANSISTORA148-5484-002 Q1072SA1037AKTRANSISTOR AC04-051-005 T146 Q1082SC2235TRANSISTOR AT04-219-004 TPE6

46、F Q1092SA965TRANSISTOR AT04-220-004 TPE6 F Q1102SC5100TRANSISTOR A148-5363-005 LF719 Q1112SA1908TRANSISTOR A148-5364-005 LF719 Q112DTC114EKATRANSISTOR AC04-311-003 T146 Q2012SC3326TRANSISTOR AC04-083-003 TE85R F Q2022SA1618TRANSISTOR AC04-178-003 TE85L F Q2032SC4207TRANSISTOR AC04-177-004 TE85L F Q2

47、042SA988FTRANSISTORAT04-095-005 Q2052SC1841FTRANSISTORAT04-094-005 Q2062SD637TRANSISTORA148-5484-002 Q2072SA1037AKTRANSISTOR AC04-051-005 T146 Q2082SC2235TRANSISTOR AT04-219-004 TPE6 F Q2092SA965TRANSISTOR AT04-220-004 TPE6 F Q2102SC5100TRANSISTOR A148-5363-005 LF719 Q2112SA1908TRANSISTOR A148-5364-

48、005 LF719 Q212DTC114EKATRANSISTOR AC04-311-003 T146 Q3012SC3326TRANSISTOR AC04-083-003 TE85R F Q3022SA1618TRANSISTOR AC04-178-003 TE85L F Q3032SC4207TRANSISTOR AC04-177-004 TE85L F Q3042SA988FTRANSISTORAT04-095-005 Q3052SC1841FTRANSISTORAT04-094-005 Q3062SD637TRANSISTORA148-5484-002 Q3072SA1037AKTRANSISTOR AC04-051-005 T146 Q3082SC2235TRANSISTOR AT04-219-004 TPE6 F Q3092SA965TRANSISTOR AT04-220-004 TPE6 F Q3102SC5100TRANSISTOR A148-5363-005 LF719 Q3112SA1908TRANSISTOR A148-5364-005 LF719 Q312DTC114EKATRANSISTOR AC04-311-003 T146 Q4012SC3326TRANSISTOR AC04-083-003 TE85R F Q