Jvc-KSAX-3300-Service-Manual(1) 电路图 维修手册.pdf

《Jvc-KSAX-3300-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Jvc-KSAX-3300-Service-Manual(1) 电路图 维修手册.pdf（25页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL COPYRIGHT 2005 Victor Company of Japan, Limited No.MA171 2005/3 POWER AMPLIFIER MA17120053 KS-AX3300 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.MA171) SPECIFICATION Design and specifi cations are subject to change without notice. Power Output65 W RMS 2 channels at 4 and or = 1% THD + N Signal-to-Noise Ratio86 dBA (reference: 1 W int

5、o 4 ) Maximum Power Output320 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)259 mm 54 mm 172 mm (10-1/4 in. 2-3/16 in. 6-13/16 in.) Mass (approx.)1.6 kg (3.6 lbs.) RadioFans.CN 收音机爱 好者资料库 (No.MA171)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.MA171) SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.MA171)1-5 SECTION 3 DISASSEMBLY 3.1Main board 3.1.1Removing th

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

9、 on the front side of the rear cover. Fig.1 Fig.2 Fig.3 Fig.4 A A B B B C ED 1-6 (No.MA171) SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT. (No.MA171)1-7 SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. (No.MA171) AV connect it fi rmly with insu

10、lating 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 the heat dissipation mechanis

11、m 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 the units since there are no us

12、er 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 (purchased separately) through which

13、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 connection. If you have any questi

14、ons 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, noise may occur when the car r

15、eceiver 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 terminal on this unit. If the POWER/P

16、ROTECTOR 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 fi x the terminal with the scre

17、w 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 SUPPLY LVT1329-001A J/E/U CONTRO

18、LS 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 subwoofer system. KS-AX3500: R

19、EAR 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 LEVEL controller The input level

20、 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 bottom of the cabinet. Retain thi

21、s 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 sure to comply with the follo

22、wing 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 case, redo the wirings. Use the

23、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 Output KS-AX3500: 55 W RMS 4 ch

24、annels 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 Response 5 Hz to 50,000 Hz ( +0,

25、 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. 8-3/4 in.) KS-AX3300: 259 mm 54

26、 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 notice. LR LR LR LR TROUBLESHOOTING

27、 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 this unit is turned on. Use a r

28、elay 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 short-circuited. Leave the un

29、it 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 input connector from the receive

30、r 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 securely to a metal part of the c

31、ar. 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 connected to AM (MW/LW) tuner. Move th

32、e 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, redo the speaker wiring. Whe

33、n 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 unit. 2-speaker systemBRIDGE

34、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 appropiate connection referring to t

35、he 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 * 1 Not supplied for this unit

36、. * 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.MA171SCH 2005/3 KS-AX3300 COPYRIGHT 2005 Victor Comp

37、any 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 chassis. Therefore, pay attention to

38、 such burrs in the case of preforming repair of this system. Safety precaution 2-1 CN901 IC301 IC901 SW301 LPF ON/OFF LEVEL IC302IC303CN904 SPEAKER OUTPUT VR 301 CN902 HIGH INPUT LOW INPUT CN903 BATT REMOTE GND LED901 T901 F901 30A L+,L- R+,R- L+,L- R+,R- Block diagram 2-2 Standard schematic diagram

39、 2-3 Main board Printed circuit board (No.MA171SCH) Printed in Japan VPT AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Victor Company of Japan, Limited 3-1 PARTS LIST * All printed circuit boards and its assemblies are not available as servi

40、ce parts. - Contents - Exploded view of general assembly and parts list (Block No.M1) Electrical parts list (Block No.01) Packing materials and accessories parts list (Block No.M3) KS-AX3300 3-2 3-4 3-8 Area suffix J - Northern America E - Southern Europe U - Other Areas MA171 3-2 Exploded view of g

41、eneral assembly and parts list Block No.M MM1 7 7 7 7 7 7 2 8 7 10 6 7 710 10 8 2 9 3 10 9 7 7 4 11 8 8 8 8 7 7 7 9 2 7 7 7 5 1 F901 12 Amp board 3-3 General Assembly Block No. M1MM Symbol No.Part No.Part NameDescriptionLocal 1A4265359-001-0HEAT SINK 2A1265343-001-0HEAT SINK SUB(x3) 3A3146065-001-0F

42、RONT CHASSIS 4A2146066-001-0BOTTOM COVER 5A3247033-001-APLATE 6A3292008-004-2SCREW2x8(x2) 7A3293008-032-2SCREW3x8(x17) 8A2285199-003-0SCREW3x8(x6) 9A2285195-002-0SCREW3x8.5(x8) 10A3293008-002-7SCREW3x8(x5) 11A1236255-003-0RATING LABELE 11A1236255-001-0RATING LABELJ 11A1236255-002-0RATING LABELU 12A1

43、51-5190-030FUSE30A F901 3-4 Electrical parts list AMP board Block No. 01 Symbol No.Part No.Part NameDescriptionLocal IC301NJM4565MICAC08-086-002 TE1 IC302NJM4565MICAC08-086-002 TE1 IC303NJM4565MICAC08-086-002 TE1 IC901UPC494GS-E1-AICAC08-004-002 IC902PS2501-1ICA149-5233-008 Q1012SC3326TRANSISTOR AC0

44、4-083-003 TE85R F Q1022SA1618TRANSISTOR AC04-178-003 TE85L F Q1032SC4207TRANSISTOR AC04-177-004 TE85R F Q1042SA988FTRANSISTORAT04-095-005 Q1052SC1841FTRANSISTORAT04-094-005 Q1062SD637TRANSISTORA148-5484-002 Q1072SA1037AKTRANSISTOR AC04-051-005 T146 Q1082SC2235TRANSISTOR AT04-219-004 TPE6 F Q1092SA96

45、5TRANSISTOR 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 TE85R F Q2042SA988FTR

46、ANSISTORAT04-095-005 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 A148-5364-005 LF719 Q

47、212DTC114EKATRANSISTOR AC04-311-003 T146 Q301DTA114EKATRANSISTOR AC04-310-003 T146 Q3022SC2412KTRANSISTOR AC04-050-005 T146 Q3032SC1815TRANSISTOR AT04-075-006 TPE2 F Q3042SC1815TRANSISTOR AT04-075-006 TPE2 F Q3052SA1015TRANSISTOR AT04-101-006 TPE2 F Q3062SA1015TRANSISTOR AT04-101-006 TPE2 F Q3072SC2

48、412KTRANSISTOR AC04-050-005 T146 Q3082SC2412KTRANSISTOR AC04-050-005 T146 Q3092SC1815TRANSISTOR AT04-075-006 TPE2 F Q3102SA1015TRANSISTOR AT04-101-006 TPE2 F Q311DTA114EKATRANSISTOR AC04-310-003 T146 Q901DTC114EKATRANSISTOR AC04-311-003 T146 Q9022SB1132TRANSISTOR AC04-044-003 T100 Q9032SC2412KTRANSISTOR AC04-050-005 T146 Q904DTC114EKATRANSISTOR AC04-311-003 T146 Q905DTA144EKATRANSISTOR AC04-310-005 T146 Q906DTC114EKATRANSISTOR AC04-311-003 T146 Q907DTC114EKATRANSISTOR AC04-311-003 T146 Q9082SC3326TRANSISTOR AC04-083-003 TE85R F Q9092SC3326TRANSISTOR AC04-083-003 TE85R F Q9