Technics-SBWA-330-E-Service-Manual电路原理图.pdf

Table Of Contents COVER 1 Safety Precautions 1.1 GENERAL GUIDELINES 1.1.1 LEAKAGE CURRENT COLD CHECK 1.1.2 LEAKAGE CURRENT HOT CHECK (See Figure 1.) 2 Handling the Lead-free Solder 2.1 About lead free solder (PbF) 3 Before Repair and Adjustment 4 Protection Circuitry 5 Connection of the Speaker Cables 6 Disassembly Procedure 6.1 Disassembly of the Speaker Unit 6.2 Main Component Replacement Procedures 6.2.1 Replacement of the Power IC 7 Connection of the Speaker Wiring 8 Block Diagram 9 Schematic Diagram 10 Printed Circuit Board 11 Wiring Connection Diagram PV 12 Illustration of IC s, Transistors and Diodes 13 Parts Location and Replacement Parts List 13.1 Cabinet 13.1.1 Cabinet Parts Location 13.1.2 Cabinet Parts List 13.2 Component Parts List 13.3 Packing Materials Typically the melting point is 50 - 70F (30 - 40C) higher. Please use a high temperature soldering iron. In case of the soldering iron with temperaturecontrol, please set it to 700 20F (370 10C). G Pb free solder will tend to splash when heated too high (about 1100F/600C). G When soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the soldering points with the Pb free solder until it melts enough. TOP PREVIOUS NEXT 3 Before Repair and Adjustment TOP PREVIOUS NEXT Disconnect AC power, discharge Power Supply Capacitors C546, C547, C548, C549 through a 10 , 1 W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac, to avoid overcurrent. Current consumption at AC 230V, 50Hz in NO SIGNAL mode should be 400 mA (E). Current consumption at AC 230240V, 50Hz in NO SIGNAL mode should be 400 mA (EB). TOP PREVIOUS NEXT 4 Protection Circuitry TOP PREVIOUS NEXT The protection circuitry may have operated if either of the following conditions are noticed: G No sound is heard when the power is turned on. G Sound stops during a performance. The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are “shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used. If this occurs, follow the procedure outlines below: 1. Turn off the power. 2. Determine the cause of the problem and correct it. 3. Turn on the power once again after one minute. Note : When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again. TOP PREVIOUS NEXT 5 Connection of the Speaker Cables TOP PREVIOUS NEXT G Be sure to connect speaker cables before connecting the AC power supply cord. G The load impedance of any speaker used with this unit must be 4. G Be sure to connect the cable from the right speaker to the right terminal and the cable from the left speaker to the left terminal. 1. Strip off the outer covering, and twist the center conductor. Make sure the bare ends of the wires are not unravelled. (If they are, twist them tight again.) 2. Insert the wire to the rear panel of the unit and close the lever. Notes : G To prevent damage to circuitry, never short-circuit positive (+) and negative (-) speaker wires. G Be sure to connect only positive (red) wires to positive (+) terminals and negative (black) wires to negative (-) terminals. 6 Disassembly Procedure TOP PREVIOUS NEXT “ATTENTION SERVICER” Some chassis components may have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. 2. For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required. 3. Select items from the following index when checks or replacement are required. Contents G Disassembly of the Speaker Unit G Main Component Replacement Procedures 6.1 Disassembly of the Speaker Unit 6.2 Main Component Replacement Procedures 6.2.1 Replacement of the Power IC TOP PREVIOUS NEXT 6.1 Disassembly of the Speaker Unit TOP PREVIOUS NEXT Step 1: Remove 2 screws from the rear panel. Step 2: Remove all screws. Step 3: Remove the Stand Base. Step 4: Remove 5 screws from the speaker bottom. Step 5: Pull the Power/Amp Unit as shown. Step 6: Release the connector CN506 and pull out the Power/Amp Unit. Step 7: Push the Net Frame from two holes inside the unit. Step 8: Remove the Net Frame. Step 9: Remove all the screws. Step 10: Remove the Speaker. Step 11 mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant (resistors), high-quality sound (capacitors), low-noise (resistors), etc. are used. Whenreplacing any of components, be sure to use only manufacturers specified parts shown in the parts list. Caution ! IC, LSI and VLSI are sensitive to static electricity. Secondary trouble can be prevented by taking care during repair. G Cover the parts boxes made of plastics with aluminium foil. G Put a conductive mat on the work table. G Ground the soldering iron. G Do not touch the pins of IC, LSI or VLSI with fingers directly. TOP PREVIOUS NEXT 10 Printed Circuit Board TOP PREVIOUS NEXT TOP PREVIOUS NEXT 11 Wiring Connection Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT 12 Illustration of IC s, Transistors and Diodes TOP PREVIOUS NEXT TOP PREVIOUS NEXT 13 Parts Location and Replacement Parts List TOP PREVIOUS NEXT Notes: G Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardent (resistors), high-quality sound (capacitors), low noise (resistors), etc are used. When replacing any of these components, be sure to use only manufacturers specified parts shown in the parts list. G The parenthesized indications in the Remarks columns specify the areas or colour. (Refer to the cover page for area or colour) Parts without these indications can be used for all areas. G Capacitor values are in microfarads (F) unless specified otherwise, P= Pico-farads (pF), F= Farads. G Resistance values are in ohms, unless specified otherwise, 1K=1,000 (OHM). G The marking (RTL) indicates that the Retention Time is limited for this items. After the discontinuation of this assembly in production, the item will continue to be available for a specific period of time. The retention period of a availabilityis dependent on the type of assembly, and in accordance with the laws governing part and product retention. After the end of this period, the assembly will no longer be available. G M Indicates in the Remarks columns indicates parts supplied by PAVCSG. G The “(SF)” mark denotes the standard part. 13.1 Cabinet 13.1.1 Cabinet Parts Location 13.1.2 Cabinet Parts List 13.2 Component Parts List 13.3 Packing Materials & Accessories Parts List 13.4 Packaging TOP PREVIOUS NEXT 13.1 Cabinet TOP PREVIOUS NEXT 13.1.1 Cabinet Parts Location 13.1.2 Cabinet Parts List TOP PREVIOUS NEXT 13.1.1 Cabinet Parts Location TOP PREVIOUS NEXT TOP PREVIOUS NEXT 13.1.2 Cabinet Parts List TOP PREVIOUS NEXT Ref. No.Part No.Part Name & DescriptionRemarks CABINET AND CHASSIS 1 RFKHBWAMT1PS SPK CABINET ASSYM 1-1 RMG0520-KCATCHM 1-2 XTB4+12AFNSCREWM 2 RGK1601-SSTAND ORNAMENTM 3 RMQ0705EVA PACKINGM 4 RKA0147-KFOOTM 5 RYB0298AJNET FRAME ASSYM 6 XTB4+14AFNSCREW (WOOFER)M 7 RGNX0175A-SNAME PLATE LABELME 7 RGNX0175B-SNAME PLATE LABELMEB 8 REM0072-3FANM 9 RGR0332A-JAREAR PANELM 10 RHD30092SCREW (MAIN PCB)M 11 RMR1485-WLED HOLDERM 12 XTB3+16AFZSCREWM 13 XTB3+20JFZSCREWM 14 XTBS3+8JFZ1SCREWM 15 XTS4+20JFZSCREWM 16 XTW3+15TSCREWM 17 XYC26+CJ6FZSCREWM 18 SHE187-6JPCB SUPPORTM 19 RMC0158-STR-FIXTUREM TOP PREVIOUS NEXT 13.2 Component Parts List TOP PREVIOUS NEXT Ref. No.Part No.Part Name & DescriptionRemarks PRINTED CIRCUIT BOARD REP3435FPOWER P.C.B./ AC INLET P.C.B./ TRANSFORMER P.C.B./ LED P.C.B. ME (RTL) REP3435GPOWER P.C.B./ AC INLET P.C.B./ TRANSFORMER P.C.B./ LED P.C.B. MEB (RTL) INTEGRATED CIRCUITS IC501RSN311W64B-PIC HICM IC502C0AABB000055IC AMPM TRANSISTORS Q501KTC3199GRTATRANSISTORM Q502KTC3199GRTATRANSISTORM Q503KTC3199GRTATRANSISTORM Q505KTC3199GRTATRANSISTORM Q506KRA102MTATRANSISTORM Q507KTC3199GRTATRANSISTORM Q508KTA12710YTATRANSISTORM Q509KTC3199GRTATRANSISTORM Q510KTC3199GRTATRANSISTORM Q511KTC2026TRANSISTORM Q513KTC3199GRTATRANSISTORM Q514KTC3199GRTATRANSISTORM Q515KTC3199GRTATRANSISTORM Q516KRC102MTATRANSISTORM Q517KTC2026TRANSISTORM Q519KTC3199GRTATRANSISTORM Q520KRA102MTATRANSISTORM DIODES D500B0AACK000004DIODEM D501B0JAPG000019DIODEM D502B0JAPG000019DIODEM D503MA2C700A0FDIODEM D504B0AACK000004DIODEM D505B0AACK000004DIODEM D506B0AACK000004DIODEM D507B0AACK000004DIODEM D508B0AACK000004DIODEM D509B0BA5R100013DIODEM D510B0BA9R600002DIODEM D511B0HARM000017DIODEM D512B0HARM000017DIODEM D513B0HARM000017DIODEM D514B0HARM000017DIODEM D515B0EAKM000085DIODEM D516B0EAKM000085DIODEM D517B0HARM000017DIODEM D518B0HARM000017DIODEM D519B0AACK000004DIODEM D524SLI325URCT31DIODEM D525B0BA6R600008DIODEM D527B0EAKM000085DIODEM D528B0EAKM000085DIODEM D529B0EAKM000085DIODEM D530B0EAKM000085DIODEM D533B0BA5R100013DIODEM CONNECTORS CN501K1FB125B0095SYSTEM CONNECTORM CN502K1KB07B000202P CONNECTORM CN503K1KA12A00066CONNECTORM CN506K1KA03A00006CONNECTORM CN507K1KA02A00008CONNECTORM CP502K1KA07A001232P CONNECTORM COILS & TRANSFORMERS L500RLQZ371LINE FILTERM L501G0AR76Y00001CHOKE COILM L502G0AR76Y00001CHOKE COILM L503G0AR76Y00001CHOKE COILM L504G0AR76Y00001CHOKE COILM L505G0AR76Y00001CHOKE COILM T501ETP76VSU62CAPOWER TRANSFORMERM T502G4C2AAJ00005BACK-UP TRANSFORMERM COMPONENT COMBINATION Z501ERZV10V511CSZENERM RELAY RLY501 RSY0040M-0PRIMARY RELAYM SPEAKER SP1EAST17PL21A6SPEAKER FUSES F1K5D202BK0005250V 2A FUSEM FUSE HOLDERS FC501EYF52BCFUSE HOLDERM FC502EYF52BCFUSE HOLDERM FUSE PROTECTOR FP1K5G502AA00025A FUSE PROTECTORM HOLDERS H500K1YF1200000212P WIRE HOLDERM H505ARMR03123P CABLE HOLDERM H505BRMR03123P CABLE HOLDERM WIRES W1REE1205WIRE UNITM W2REE1204WIRE UNITM W500REX1146WIRE UNITM W505RWJ1103320XX3P STRAND WIREM JACKS JK500K2AA2B000004JK AC INLETM JK501K4BC06B00027JK 6P SPEAKERM JK502K4BC04B00056JK 4P SPEAKERM EARTH TERMINAL E500K4CZ01000027TERMINALSM E501K4CZ01000027TERMINALSM RESISTORS R401ERDS2TJ224T220K 1/4WM R402ERDS2TJ102T1K 1/4WM R403ERDS2TJ104T100K 1/4WM R501ERDS2TJ472T4.7K 1/4WM R502ERDS2TJ472T4.7K 1/4WM R503ERDS2TJ153T15K 1/4WM R504ERDS2TJ153T15K 1/4WM R505ERDS2TJ153T15K 1/4WM R506ERDS2TJ153T15K 1/4WM R507ERDS2TJ392T3.9K 1/4WM R508ERDS2TJ392T3.9K 1/4WM R509ERDS2TJ472T4.7K 1/4WM R510ERDS2TJ472T4.7K 1/4WM R511ERDS2TJ153T15K 1/4WM R512ERDS2TJ153T15K 1/4WM R513ERDS2TJ563T56K 1/4WM R514ERDS2TJ563T56K 1/4WM R515ERDS2TJ563T56K 1/4WM R516ERDS2TJ563T56K 1/4WM R517ERDS2TJ563T56K 1/4WM R518ERDS2TJ563T56K 1/4WM R519ERDS2TJ824T820K 1/4WM R520ERDS2TJ223T22K 1/4WM R521ERDS2TJ103T10K 1/4WM R522ERDS2TJ273T27K 1/4WM R523ERDS2TJ124T120K 1/4WM R524ERDS2TJ124T120K 1/4WM R525ERDS2TJ154T150K 1/4WM R526ERDS2TJ124T120K 1/4WM R527ERDS2TJ124T120K 1/4WM R528ERDS2TJ154T150K 1/4WM R529ERDS2TJ223T22K 1/4WM R530ERD25FVJ1R0T1 1/4WM R531ERD25FVJ1R0T1 1/4WM R532ERDS2TJ472T4.7K 1/4WM R533ERDS1FVJ100T10 1/2WM R534ERDS1FVJ100T10 1/2WM R535ERDS1FVJ100T10 1/2WM R536ERDS1FVJ100T10 1/2WM R537ERDS1FVJ100T10 1/2WM R538ERDS1FVJ100T10 1/2WM R539ERDS2TJ101T100 1/4WM R540ERDS2TJ101T100 1/4WM R541ERDS2TJ101T100 1/4WM R542ERDS2TJ101T100 1/4WM R543ERDS2TJ101T100 1/4WM R544ERDS2TJ101T100 1/4WM R545ERDS2TJ224T220K 1/4WM R546ERDS2TJ102T1K 1/4WM R547ERDS2TJ394T390K 1/4WM R548ERDS2TJ334T330K 1/4WM R549ERDS2TJ473T47K 1/4WM R550ERDS2TJ103T10K 1/4WM R551ERDS2TJ472T4.7K 1/4WM R552ERDS2TJ562T5.6K 1/4WM R553ERDS2TJ563T56K 1/4WM R554ERDS2TJ824T820K 1/4WM R555ERDS2TJ104T100K 1/4WM R556ERDS2TJ103T10K 1/4WM R557ERDS2TJ563T56K 1/4WM R558ERDS1FVJ180T18 1/2WM R559ERDS2TJ563T56K 1/4WM R560ERDS2TJ103T10K 1/4WM R561ERDS2TJ101T100 1/4WM R565ERDS1FVJ392T3.9K 1/2WM R566ERDS2TJ271T270 1/4WM R567ERDS1FVJ152T1.5K 1/2WM R568ERDS2TJ151T150 1/4WM R569ERDS1FVJ392T3.9K 1/2WM R570ERDS2TJ103T10K 1/4WM R571ERDS2TJ332T3.3K 1/4WM R572ERDS2TJ223T22K 1/4WM R573D0XGR10JA00510 1/10WM R575ERDS2TJ682T6.8K 1/4WM R577ERDS2TJ152T1.5K 1/4WM R578ERDS2TJ103T10K 1/4WM R579ERDS2TJ332T3.3K 1/4WM R580ERDS2TJ220T22 1/4WM R581ERDS2TJ100T10 1/4WM R582ERDS2TJ100T10 1/4WM R583ERDS2TJ100T10 1/4WM R584ERDS2TJ100T10 1/4WM R585ERDS2TJ100T10 1/4WM R587ERDS2TJ272T2.7K 1/4WM R588ERDS2TJ151T150 1/4WM R589ERDS2TJ103T10K 1/4WM R590ERDS2TJ102T1K 1/4WM R591ERDS2TJ682T6.8K 1/4WM R592ERDS2TJ683T68K 1/4WM R593ERDS2TJ474T470K 1/4WM R594ERDS2TJ103T10K 1/4WM R595ERDS2TJ101T100 1/4WM R596ERDS2TJ473T47K 1/4WM R597ERDS2TJ103T10K 1/4WM R598ERDS1FVJ152T1.5K 1/2WM R599ERDS2TJ223T22K 1/4WM CAPACITORS C500ECKWRS102MBC 1000P 400VM C501ECBT1H102KB51000P 50VM C502ECBT1H102KB51000P 50VM C503ECBT1H102KB51000P 50VM C504ECBT1H681KB5680P 50VM C505ECBT1H102KB51000P 50VM C506ECBT1H102KB51000P 50VM C507ECBT1H180JC518P 50VM C508ECBT1H180JC518P 50VM C509ECBT1H220JC522P 50VM C510ECBT1H220JC522P 50VM C511ECBT1H220JC522P 50VM C512ECBT1H220JC522P 50VM C513F1D1H473A0120.047 50VM C514ECA0JM101B100 6.3VM C515ECKR2H103ZF50.01 500VM C516ECKR2H103ZF50.01 500VM C517ECBT1C103NS50.01 16VM C518F1D1H473A0120.047 50VM C519F1D1H473A0120.047 50VM C520F1D1H473A0120.047 50VM C521F1D1H473A0120.047 50VM C522F1D1H473A0120.047 50VM C523F1D1H473A0120.047 50VM C524F1D1H10400020.1 50VM C525F1D1H10400020.1 50VM C526F1D1H10400020.1 50VM C527F1D1H10400020.1 50VM C528F1D1H473A0120.047 50VM C529F1D1H10400020.1 50VM C530ECBT1H102KB51000P 50VM C531ECBT1H102KB51000P 50VM C532ECBT1H102KB51000P 50VM C533ECBT1H102KB51000P 50VM C534ECA1HM330B33 50VM C536ECEA1CKA330B33 16VM C537F1D1H10400020.1 50VM C538ECA0JM101B100 6.3VM C539ECEA0JKA221B220 6.3VM C540ECEA1HKA2R2B2.2 50VM C541ECEA1CKA100B10 16VM C543ECBT1H102KB51000P 50VM C544ECA1HM101B100 50VM C545F1D1H10400020.1 50VM C546ECA1VM332B3300 35VM C547ECA1VM472B4700 35VM C548ECA1VM472B4700 35VM C549ECA1VM332B3300 35VM C550ECBT1C103NS50.01 16VM C551ECBT1H103KB50.01 50VM C552F1D1H10400020.1 50VM C553ECQE1104KF30.1 100VM C554ECQE1104KF30.1 100VM C555ECEA1VKA4R7B4.7 35VM C556ECBT1H103KB50.01 50VM C557ECEA1CKA220B22 16VM C558ECA1CM102B1000 16VM C559ECBT1H103KB50.01 50VM C560ECA1HM100B10 50VM C561ECEA1HKA2R2B2.2 50VM C562ECQB1H562JF35600P 50VM C563ECQV1H823JL30.082 50VM C564ECBT1C122KR51200P 16VM C565F1D1H10400020.1 50VM C566F1D1H10400020.1 50VM C567ECA1HM100B10 50VM C568ECBT1C103NS50.01 16VM C569F1D1H473A0120.047 50VM TOP PREVIOUS NEXT 13.3 Packing Materials& Accessories Parts List TOP PREVIOUS NEXT Ref. No.Part No.Part Name & DescriptionRemarks PACKING MATERIALS P1 RPF0357MIRAMAT (STAND)M P2 RPNX0189 POLYFOAMM P3 RPFX0045MIRAMAT (S.WOOFER) M TOP PREVIOUS NEXT 13.4 Packaging TOP PREVIOUS TOP PREVIOUS KTC2026 KTC31