Rotel-RB993-pwr-sm 维修电路原理图.pdf
T echnicalManualTHREE-CHANNEL POWER AMPLIFIERRB-993Table of ContentsSpecificationSpecification.1Wiring Diagram.2Parts List.3,4Adjustment.4PCB Assembly.5,6Schematic Diagram.7,8Continuous Power Output(20-20 kHz, 0.03%, 8 ohms) 200 watts/ch.Total Harmonic Distortion(20 Hz-20 kHz, 8 ohms) 0.03%Intermodulation Distortion(60 Hz: 7 kHz, 4:1) 0.03% Frequency Response(+0.5dB,-3dB) 15-100K Hz,Damping Factor(20-20,000 Hz, 8 ohms) 1000Speaker Impedance (Normal mode) 4 ohms minimumSignal to Noise Ratio(IHF A network) 116 dBInput Impedance/Sensitivity 32 k Ohms/1.5 voltPower Requirements 115 Volts, 60 Hz or 230 Volts, 50 HzPower Consumption 600 WattsDimensions (W, H, D) 440 x 121 x 385 mm 173/8 x 43/4 x 153/16 inWeight (net) 18.3 kg, 40.3 lbBUNZAN-SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,TOKYO 150-0045, JAPANSerial. NO.BeginingWiring DiagramQuality UncompromisedY-313A-98095C/S-S2RadioFans.CN 收音机爱 好者资料库SYMBOL PARTS NO.DESCRIPTIONSYMBOL PARTS NO.DESCRIPTIONParts ListSYMBOL PARTS NO.DESCRIPTIONSYMBOL PARTS NO.DESCRIPTIONParts ListX-1253-01 PCB ASSEMBLYC10104150BGF4R7MCAP,ELEC.50V4.7UFC102044TFKP2-100V681HCAP,FILM 100V680PFC103044LFSC160V471HCAP,STYROL 160V470PFC104044LFSC160V221HCAP,STYROL 160V220PFC10504125BGF100MCAP,ELEC.25V100UFC10704150BGF10MCAP,ELEC.50V10UFC108044LFSC160V331HCAP,STYROL 160V330PFC109044LS50V100PJCAP,STYROL 50V100OFC110,11104125BGF100MCAP,ELEC.25V100UFC901,90204125BGF470MCAP,ELEC.25V470UFD101-104034LT1N4148-86DIODED901,902034TRD16JST1ZENER DIODEIC101031LNE5534ANICQ101-103033LT2SC2362KAA-FG TRANSISTORQ104-106033LT2SA1016KAA-FG TRANSISTORQ1070332SA1142-EPQTRANSISTORQ1080332SC2682-EPQTRANSISTORQ901033L2SD600K-EFTRANSISTORQ902033L2SB631K-EFTRANSISTORR101054LTMK2001KFECZR,METAL 1% 1KR102054LTMK2033KFECZR,METAL 1% 33KR103054LTMK2470RFECZR,METAL 1% 470RR104-107054LTMK201K5FECZR,METAL 1% 1.5KR108054LTMK2560RFECZR,METAL 1% 560RR109054LTMK2010RFECZR,METAL 1% 10RR110,111054LTMK2220RFECZR,METAL 1% 220RR112054LTMK2047KFECZR,METAL 1% 47KR113,114054LTMK2100RFECZR,METAL 1% 100RR115054LTMK206K8FECZR,METAL 1% 6.8KR116054LTMK203K9FECZR,METAL 1% 3.9KR118-121054LTMK2010KFECZR,METAL 1% 10KR122054LTMK2033KFECZR,METAL 1% 33KR133054LTMK2022KFECZR,METAL 1% 22KR134054LTMF3300R,METAL 330RR901,9020541WS2.2KJFR,METAL 1W 2.2KR903,9040541WS5.6KJFR,METAL 1W 5.6KVR101051LVM6CKPV1S2.2K SEMI-FIXED RESISTOR017L4TR-2792#3SUB HEAT SINKER019TO-126INSULATION SHEET066L4TR-2487#41P PINJACK066C-4575A013P CANNON CONNECTORX-1253-02 PCB ASSEMBLYC906-909041ALS20S1024XXCAP,ELEC.80V15000UF069C-4446A00SCREW TERMINALX-1253-03 PCB ASSEMBLYC119044MKT18-100V104KCAP,FILM 100V0.1UFR1660542WS10JFR,METAL 2W 10R0674TR-3222SPEAKER TERMINALX-1254-01 PCB ASSEMBLYC113,114044LFSC160V561HCAP,STYROL 160V560PFC117,118041UVX2A102MRAYCAP,ELEC.100V1000UFC120041UTSS1E100-FBCAP,ELEC.25V10UFC121041UTSS1E221-FBCAP,ELEC.25V220UFC122041UTSS1H4R7-FBCAP,ELEC.50V4.7UFC123041UTSS1E470-FBCAP,ELEC.25V47UFD105,106034LT1N4003-TBDIODED107,108034LT1N4148-86DIODEF101,1020365ST6.3MINIFUSE 250V6.3AIC102031MPC1237HAICQ109033LT2SC2910AE-RSTTRANSISTORQ110033LT2SA1208AE-RST TRANSISTORQ119033LT2SC2362KAA-FG TRANSISTORQ120,121033LT2SA1016KAA-FG TRANSISTORQ122033LT2SC2362KAA-FG TRANSISTORR123,124054LTMK2220RFECZR,METAL 1% 220RR125054LTMK2001KFECZR,METAL 1% 1KR126054LTMK2047RFECZR,METAL 1% 47RR127-132054NIR2-0.22JFR,METAL 2W 0.22RR147053CR14-391J-AR,CARBON 390RR148053CR14-223J-AR,CARBON 22KR149053CR14-122J-AR,CARBON 1.2KR150053CR14-153J-AR,CARBON 15KR151053CR14-561J-AR,CARBON 560RR152053CR14-333J-AR,CARBON 33KR153053CR14-472J-AR,CARBON 4.7KR154053CR14-473J-AR,CARBON 47KR155,156053CR14-104J-AR,CARBON 100KR157053CR14-124J-AR,CARBON 120KR158053CR14-683J-AR,CARBON 68KR159053CR14-153J-AR,CARBON 15KR160053CR14-473J-AR,CARBON 47KR1610541WS1.2KJFR,METAL 1W 1.2KR162053CR14-824J-AR,CARBON 820KR163053CR14-103J-AR,CARBON 10KR164,1650542WS6.8KJFR,METAL 2W 6.8KR167053CR14-182J-AR,CARBON 1.8KRY101063DH24D2-OT(M)RELAYTH101034TTC-503THERMISTOR069C-3417AFUSECLIP069C-4446A00SCREW TERMINALX-1254-04 PCB ASSEMBLYC903041UTES2A220-FBCAP,ELEC.100V22UFC910041UTES2A221-FACAP,ELEC.100V220UFD903,904034LT1N4003-TBDIODEQ903033L2SD600K-EFTRANSISTORR9050542WS180JFR,METAL 2W 180RR906053CR14-562J-AR,CARBON 5.6KR907053CR14-822J-AR,CARBON 8.2KR9080541WS15KJFR,METAL1W15KTH901,902034SCK2R512SURGE CURRENT THERMISTOR017C-4401A01SUB HEAT SINKER019TO-126INSULATION SHEETX-1254-05 PCB ASSEMBLYC904044DE7150F472M SPARK KILLERS001061C-4176A07 POWER SWITCHHEAT SINKER ASSEMBLYQ111033L2SD1047-DEDRIVER TRANSISTORQ112033L2SB817-DEDRIVER TRANSISTORQ113-1150332SC5200-ORPOWER TRANSISTORQ116-1180332SA1943-ORPOWER TRANSISTORQ123032L2SD1953TRANSISTOR019TO-126INSULATION SHEET019TO-3PINSULATION SHEET201 SAME AS 101, 301 SAME AS 102, OTHERS011FP-473FRONT PANEL011RV4-02A03H/S FRONT PANEL(L)011RV4-02A04H/S FRONT PANEL(R)012RV4-09A00PUSH KNOB 14F014RV3-07A00UPPER COVER015RP-343REAR CHASSIS019L4TSH-19#2PLASTIC FOOT022T-1057U02POWER TRANSFORMER034LBR254POWER DIODE063A-0710W-15ABRAKER072L4TR-670#5AC CORD for STD072LC-3763AC CORD for AUSTRALIA072C-4572A01AC CORD for UK072C-4573A01AC CORD for CEE081RV4-17A00INSIDE CARTON081Z-200STYROL SIDE MOULDING432SA1016K2SC2362K2SA12082SC2910Instruments : DC millivoltmeterNotes : Prior to Bias Adjustment, run about 5minutes with rated output(8ohms) and warm up Power Transistor and Heat Sink. Set input off.StepX-1253-01 PCB TP1X-1253-02 PCB TP2X-1253-03 PCB TP3X-1254-01 PCB VR101X-1254-01 PCB VR201X-1254-01 PCB VR301123Coupling LocationAdjust LocationAdjust forDC millivoltmeter reads 7mVAdjustment2SA11422SC26822SB631K2SD600K2SD1953NE5534AN2SB8172SD10472SA19432SC5200MPC1237HARadioFans.CN 收音机爱 好者资料库PCB Assembly56Schematic Diagram78
