Rotel-RB991-pwr-sm 维修电路原理图.pdf

T echnicalManualSTEREO POWER AMPLIFIERRB-991Table 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.(20-20 kHz, 0.05%, 4 ohms) 300 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 10-100,000 Hz, 1 dBDamping Factor(20-20,000 Hz, 8 ohms) 500Speaker Impedance 4-16 ohmsSignal to Noise Ratio(IHF A network) 120 dBInput Impedance/Sensitivity(RCA Inputs) 33 k Ohms/1.0 volt(XLR Inputs) 33k Ohms/1.0 voltPower Requirements 115 Volts, 60 Hz or 230 Volts, 50 HzPower Consumption 550 WattsDimensions (W, H, D) 440 x 127 x 385 mm 17.38 x 4.76 x 15.16”Weight (net) 16.7 kg., 36.74 lb.BUNZAN-SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,TOKYO 150-0045, JAPANSerial. NO.BeginingWiring DiagramQuality UncompromisedY-310A-98061M/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 List43EEECCCBBB123456782SAS1016K2SC2362K2SC29102SA12082SB631K2SD600K2SD19532SA11422SC2682AD711JN2SA14922SC3856Instruments : DC millivoltmeterNotes : Prior to Bias Adjustment, run about 5minutes with rated output(8ohms) and warm up Power Transistor and Heat Sink. Set input off.StepCouplingPlus LeadTP 3TP 4TP 1TP 2X-1177-01 PCBX-1177-02 PCBVR601VR60212Minus LeadLocationAdjustAdjust forDC millivoltmeter reads 7mVAdjustmentX-1177-01,02 PCB ASSEMBLY C601,602 041 50BGF4R7M CAP,ELEC.50V4.7UFC603,604 044 TFKP2-100V681H CAP,FILM 100V680PFC607,608 041 25BGF100M CAP,ELEC.25V100UFC609,610 044 LFSC160V331H CAP,STYROL 160V330PFC611,612 041 50BGF10M CAP,ELEC.50V10UFC613-616 044 LFSC160V561H CAP,STYROL 160V560PFC623-626 041 UVX2A102MRAY CAP,ELEC.100V1000UFC627,628 044 LFSC160V471H CAP,STYROL 160V470PFD601-608 034 LT1N4148-86 DIODED609-612 034 LT1N4003-TB DIODEFU601-604 036 5ST6.3 MINI FUSE 250V6.3AQ601-606 033 LT2SC2362KAA-FG TRANSISTORQ607-612 033 LT2SA1016KAA-FG TRANSISTORQ613,614 033 2SA1142-EPQ TRANSISTORQ615,616 033 2SC2682-EPQ TRANSISTORQ619,620 033 LT2SC2910AE-RST TRANSISTORQ621,622 033 LT2SA1208AE-RST TRANSISTORR601,602 054 LEE10-102 R,METAL 1KR603,604 054 LEE10-333 R,METAL 33KR605,606 054 LEE10-471 R,METAL 470RR607-610 054 LTMK201K5FECZ R,METAL 1% 1.5KR611,612 054 LTMK2220RFECZ R,METAL 1% 220RR613,614 054 LTMF1/4-5600F R,MRS25 560RR615-618 054 LTMK201K5FECZ R,METAL 1% 1.5KR619,620 054 LTMK2220RFECZ R,METAL 1% 220RR621,622 054 LTMK2047KFECZ R,METAL 1% 47KR623,624 054 LTMK2100RFECZ R,METAL 1% 100RR625,626 054 LTMF1/4-6801F R,MRS25 6.8KR627,628 054 LTMF1/4-3901F R,MRS25 3.9KR629,630 054 LTMK2100RFECZ R,METAL 1% 100RR631,632 054 LTMK2001KFECZ R,METAL 1% 1KR633,634 054 LTMK2047RFECZ R,METAL 1% 47RR635-654 054 MPC78-0.22F R,PLATE 2W 0.22RR657,658 054 LTMK2022KFECZ R,METAL 1% 22KR659-662 054 2WS6.8KJF R,METAL 2W 6.8KR663,664 054 LTMK2010RFECZ R,METAL 1% 10RR665,666 054 LTMF3300 R,METAL 330RR667-670 054 LTMK2220RFECZ R,METAL 1% 220RTH601,602 034 TTC-503 THERMISTORVR601,602 051 LVM6CKPH1S2.2K SEMI-FIXED RESISTOR017 C-4378A01 HEAT SINKER019 TO-126 INSULATION SHEET066 L4TR-2487#7 1P PINJACK(RED)066 L4TR-2487#8 1P PINJACK(WHT)068 L4TR-2787#3 CONNECTOR BASE 068 LC-4349A04 3P CONNECTOR WIRE069 C-3417A FUSE CLIP069 C-4446A00 SCREW TERMINAL X-1237-01 PCB ASSEMBLYC001044 DE7150F472MSPARK KILLERS001061 C-4176A07POWER SWITCHX-1237-02 PCB ASSEMBLY 069 C-4370A00SCREW TERMINAL X-1237-03 PCB ASSEMBLY C801041 GS100V220-BCAP,ELEC.100V22UFC802041 GS25V101-BCAP,ELEC.25V100UFC803041 GS100V221-DCAP,ELEC.100V220UFC804041 GS100V220-BCAP,ELEC.100V22UFD801034 LT1N4148-86DIODED802034 RD10EBZENER DIODED803-806034 LT1N4003-TBDIODED807,808034 LT1N4148-86DIODEQ801-803032 LT2SC2362KAA-FGTRANSISTORR801054 1WS5.6KJFR,METAL 1W 5.6KR803 053 CR14-104J-AR,CARBON 100KR804053 CR14-224J-AR,CARBON 220KR805053 CR14-104J-AR,CARBON 100KR806 053 CR14-333J-AR,CARBON 33KR807053 CR14-104J-AR,CARBON 100KR809,810 054 1WS6.8KJFR,METAL 1W 6.8KR811,812053 CR14-104J-AR,CARBON 100KR813,814053 CR14-183J-AR,CARBON 18KR815,816053 CR14-332J-AR,CARBON 3.3KR817,818053 CR14-273J-AR,CARBON 27K068 L4TR-2787#3CONNECTOR BASE X-1237-04 PCB ASSEMBLY C901.902041 25BGF470MCAP,ELEC.25V470UFD901,902054 RD16EBZENER DIODEQ901033 L2SD600K-EFTRANSISTORQ902033 L2SB631K-EFTRANSISTORR901,902054 1WS2.2KJFR,METAL 1W 2.2KR903,904054 1WS5.6KJFR,METAL 1W 5.6KRY901063 EG2-24NURELAYS901064 4TR-2341SLIDE SWITCH017 C-4401A01HEAT SINKER019 TO-126INSULATION SHEETX-1237-05,06 PCB ASSEMBLYC501,502044 LS50V100PJCAP,STYROL 50V100PFC505-508041 25BGF100MCAP,ELEC.25V100UFIC501,502031 AD711JNICR501-504054 LTMK2022KFECZR,METAL 1% 22KR505-508054 LTMK2010KFECZR,METAL 1% 10KR509,510054 LTMK2001KFECZR,METAL 1% 1K066 C-4575A01CANNON CONNECTOR068 L4TR-2787#5CONNECTOR BASE HEAT SINKER ASSEMBLYQ617,618032 L2SD1953TRANSISTORQ623-632033 2SA1492-OPYPOWER TRANSISTORQ633,634033 L2SB817-DEDRIVER TRANSISTORQ635,636033 L2SD1047-DEDRIVER TRANSISTORQ637-646033 2SC3856-OPYPOWER TRANSISTOR017 LPX4-06A00HEAT SINKER019 TO-3PINSULATION SHEETOTHERS011 FP-472SUB PANEL ASSY 011 RV4-02A02H/S FRONT PANEL012 RV4-09A00PUSH KNOB 14F014 RV3-07A00UPPER COVER015 RP-341REAR CHASSIS019 L4TSH-19#2PLASTIC FOOT022 T-1037W02POWER TRANSFORMER034 LBR154POWER DIODE036 3AG125V12ALONG FUSE for STD036 5ST6.3MINI FUSE for CEE041 ALS20S1024XXCAP,ELEC.80V15000UF044 MKT18-100V104KCAP,FILM 100V0.1UF054 2WS10JFR,METAL 2W 10R 067 L4TR-2744#1SPEAKER TERMINAL(RED)067 L4TR-2744#2SPEAKER TERMINAL(BLK)069 C-1575MINI MFUSE HOLDER069 C-4200A01LONG FUSE HOLDER071 LEL4EGG LUG072 L4TR-670#5AC CORD for STD072 LC-3763AC CORD for AUSTRALIA072 C-4572A01AC CORD for UK 072 C-4573A01AC CORD for CEE081 RV4-15A00INSIDE CARTON081 Z-200STYROL SIDE MOULDINGRadioFans.CN 收音机爱 好者资料库PCB Assembly56Schematic Diagram78