Jvc-SPPW-100-Service-Manual电路原理图.pdf

SERVICE MANUALNo.21106May. 2002COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.SP-PW100POWERED SUBWOOFERSafety precautionsDisassembly methodDescription of major ICs1- 21- 31- 78ContentsSTAND BY/ONSP-PW100 POWERED SUBWOOFERSP-PW100Area suffixUP - KoreaSP-PW1001-21. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.3. Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards.4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after re-assembling.5. Leakage currnet check (Electrical shock hazard testing)After re-assembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check.Plug the AC line cord directly into the AC outlet. Using a “Leakage Current Tester“, measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).Alternate check methodPlug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor between an exposed metal part and a known good earth ground.Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and meausre the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.). 1. This equipment has been designed and manufactured to meet international safety standards.2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.3. Repairs must be made in accordance with the relevant safety standards.4. It is essential that safety critical components are replaced by approved parts.5. If mains voltage selector is provided, check setting for local voltage.Good earth groundPlace this probe on each exposedmetal part.AC VOLTMETER(Having 1000 ohms/volts,or more sensitivity)1500 10W0.15 F AC TYPE!Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the “ “ mark nearby are critical for safety. (This regulation does not correspond to J and C version.)SP-PW1001-3Remove the front net from the four holders that are fixing the front net. Note:1.2.3.Disassembly methodRemoving the front net (See Fig.1, 2)Remove the front net.Remove the six screws A attaching the woofer.Pull out the woofer toward you.Remove the speaker cord. Removing the woofer (See Fig.3, 4) When it is hard to remove the front net, insert a minus driver, etc. in the place between the main body and the front net as shown in Fig.2 before removing the front net. Exercise care not to damage the main body and the front net when inserting the minus driver. For this purpose, insert the minus driver together with cloth and the like. Fig.1Fig.2Fig.3Fig.4Main bodyFront netWoofer Speaker cord (Red, Black)Woofer AAFront netSP-PW1001-4Place the bottom of the front panel upward.While inserting a minus driver, etc. in the two grooves, remove the four holders that are fixing the front panel.Note:1.2.Removing the front panel (See Fig.5)Remove the front panel.Remove the two screws B attaching the LED board.1.Removing the LED board (See Fig.6)Remove the eleven screws C attaching the amplifier box on the back side of the main bodyRemove the speaker cord connector connecting the amplifier box and the speaker. 1.2.Removing the amplifier box(See Fig.7, 8)Exercise care not to damage the main body and the front net when inserting the minus driver. For this purpose, insert the minus driver together with cloth and the like. Fig.5Fig.6Fig.7Fig.8Front panel Bottom of main body ConnectorLED boardBCCFront panel Amplifier boxSpeaker cord connector SP-PW1001-5Pull out the volume knob and the crossover frequency knob.Remove the three screws D attaching the input jack and speaker terminal.Remove the two screws D' attaching the voltage selector, and then remove the rear panel. 1.2.3.Removing the rear panel (See Fig.9)Remove the rear panel.Pull out the power switch knob.Remove the three screws E and the two screws F attaching the bracket a.Pull out the power cord clamp from the bracket a.Pull out the power switch board backward.Remove the connector CN899.Note:1.2.3.4.5.Removing the power switch board(See Fig.10)Remove the rear panel.Pull out the phase knob.Remove the two nuts attaching the volume knob.Remove the two screws G and the two screws H attaching the bracket b.After removing the connector CN811, pull out the terminal board.Remove the connector CN851.1.2.3.4.5.Removing the terminal board(See Fig.11, 12)Cut the tie-band, if necessary.Volume knobAmplifier boxRear panel NutPhase knobBracket bTerminal board CN899CN811CN851Terminal boardPower switch knobBracket a Power switch boardVoltage selectorCrossover frequency knobDD'FEGHFig.9Fig.10Fig.11Fig.12SP-PW1001-6Prior to performing the following procedure, remove the rear panel, the terminal board.Remove the connectors CN881 and CN891Remove the six screws I attaching the amplifierboard. 1.2.Removing the amplifier board(See Fig.13)Prior to performing the following procedure, remove the rear panel, the power supply board, the amplifier board. Remove the four screws J attaching the transformer. J1.Removing the transformer (See Fig.14)Fig.13Fig.14Amplifier boardTransformerIIJCN891CN881SP-PW1001-7TR1TR2R2C1TR3TR4D6R4TR6C2R5 R6TR5 R3D1R7TR7 R8R51C5TR9R9TR8TR12TR10TR11TR23TR24 TR22TR21R14R16R19TR20R15R16R17TR19R18C6D7TR14TR13C3R12TR16TR15TR17 R13TR31R31D31D32TR32R32ComparatorComparatorD34 D36D35D33SUB1 3 54 2 76821229161014151112131718 19 20STK411-290E(IC821) : Front power amp.Description of major ICsSP-PW1001-8NJM4580D(IC811, IC812, IC813) : Dual ope. amp.V+INPUT+V-OUTPUTA OUTA -INA +INV-1234A B(TOP VIEW)8765V+B -INB +INB OUT1. Pin layout2. Block diagramTC74HCU04AP(IC851) : 2Ch NOR gate123456714 13 12 11 10 9 81A1Y2A2Y3A3YGNDVCC6A6Y5A5Y4A4YALHYHL1. Pin layout & block diagram 2. True tableSP-PW1002-153421A B CMAINS PLUGPOWERPOWERTRANSPOWER-SUPPLY CIRCUITPOWER AMP IC 821VOLUMEFW801INPUT (LOW-LEVEL)INPUT (HIGH-LEVEL) OUTPUT (SPEAKER-OUT)L /MONOIC 813PHASE SW NORMAL- REVERSEIC 851CN811B+CN881SPEAKEROUTIN9V RGE.PROTECTMUTEIC 811IC 813B+Q8801Q8201 Q8202 Q8203REGULATORQ8701 Q8702IC 812DC-DETMUTEPROTECTDC-DETRY881CN881CN891CN851 CN861REDGREENINDICATORDC-DETCTORIN PUT L / H AMP & H.P FILTERL.P FILTERFW801CN821IN PUT L / H AMPLED CONT.Block diagramSP-PW1002-3Standard schematic diagramParts are safety assurance parts.When replacing those parts makesure to use the specified.MAIN signalIC811IC811IC812IC812IC813R8105R8103R8104R8124R8118R8119R8120R8123R8126R8107R8109R8111R8112R8115 R8113R8114R8116C8103C8112C8113C8101C8102VR811CN899R8121C8105C8108C8109C8252IC851IC851IC851IC851CN881C8504C8506C8508C8501C8503R8514R8515R8518R8517R8519FW801R8504R8505R8506R8507R8521C8122R8522R8523D8507D8502D8503D8504D8508D8509C8507IC813Q8501Q8801C8505IC861R8801R8224CN851CN861D8602D8601R8601R8803Q8701R8704 R8701R8703D8701D8702R8702Q8702C8927C8917C8914IC821R8223F8911F8921R8922PP892S8901PP891C8901D8201R8208D8202D8205D8206R8202 R8203C8203C8204C8213R8213D8911D8921C8925C8928L8201C8210R8219R8222RY881R8217C8201IC851IC851C8924D8511D8603F8901R8802C8219T8901S8101C8218C8217R8252C8233C8234VR812C8124F8902PP891S8901PP892C8901F8901S8902T8901C8104R8101R8102R8125R8106R8108R8110R8117C8114C8115C8116C8111R8122D8510Q8102C8106C8107C8110R8227R8226R8225R8705C8502R8516R8503R8502R8501R8512R8811R8812D8505D8506D8501Q8502R8520Q8203J8101J8102C8701C8702C8703C8704R8229C8921C8922C8911C8912C8915CN821CN811CN891R8209R8204R8205R8201C8202R8207C8208D8208R8212R8215R8211R8214R8210D8207R8216D8924C8207C8209R8921Q8204Q8201Q8202C8211D8209R8221R8218R8220R8206C8205D8801C8212C8232Q8101C8801C8215C8206R8228D8212D8211R8233C8214C8253C8121C8231R8128R8127C8123R8129CN899C2117C2118NJM4580D-DNJM4580D-DNJM4580D-DNJM4580D-DNJM4580D-D68K56K56K56K150K150K150K6.8K100K1.8k2.2k5.6k5.6k10K 15K12K39K0.00220.0220.02210/5010/5010KBQGA7901C1-02150K0.220.0120.0220.1TC74HCU04APTC74HCU04APTC74HCU04APTC74HCU04APQGA3901C1-0210/5010/50470/6.322/25100/251M4.7K22560K510K1K100K1M2.2K1K150P180221SS133-T21SS133-T21SS133-T21SS133-T21SS133-T21SS133-T20.01NJM4580D-DKTC3199/GL/-T2SC945/PK/-T100PUPC78L05J-T2.2K56KQGA2501C1-021SS133-T21SS133-T21802.2K2SD400MP/EF/-T1.5K101.5KMTZJ10B-T2MTZJ10B-T2102SB544MP/EF/-T0.10.1/1000.1/100STK411-290E56K4.7QSW0632-0010.0047MTZJ8.2C-T210KMTZJ8.2C-T2MTZJ33C-T2MTZJ33C-T2100 100100/5010/508.2P/5010D5SBA20-S1D5SBA20-S10.12.2/50QQLZ005-R4510/25100K82KQSK0190-001100K100P/50TC74HCU04APTC74HCU04AP0.1MTZJ6.8B-T2SPR-325MVW2.2K1/50QSW0834-00110/5010/5010150P/50150P/5020KB0.01QSW0632-0010.0047QSW0838-001QQT0265-0040.22470K470K47K1K12k150k3.9K1000P1000P1/5010/506.8K1SS133-T2KTC3199/GL/-T0.270.0820.003356K56033K10100/1047K100K12K1K4.7K6.2K4.7K1SS133-T21SS133-T21SS133-T2KTC3199/GL/-T4.7KKTC3199/GL/-TQNN0090-001QNB0002-00147/2547/25100/25100/250.336800/256800/254700/504700/500.1/100QGB2016K1-15QGB2016J1-15QGA3901C1-05100K2.7K2.7K10100/501K0.221SS133-T21.2K22K0.3310K0.331SS133-T210DSK10C-T1220P/500.2233KKTA1267/YG/-TKTC3199/GL/-TKTA1267/YG/-T47/251SS133-T2100K10K10K 56K470P/501SS133-T2100/16100P/50KTC3199/GL/-T1/50100/252.2/502701N5402M-201N5402M-204.7K0.10.01/1610/50150P/501K1K0.01680kQGA7901C1-04150P150PABCDEFG12 3 45