Rotel-RB976_MKII-pwr-sm 维修电路原理图.pdf

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1、T echnicalManualSIX CHANNEL POWER AMPLIFIERRB-976MKTable of ContentsSpecificationSpecification.1Parts List.23Adjustment.4Service Note.4Case Outlines.5PCB Assembly.510Schematic Diagram .1112Continuous Power Output Stereo Mode60 watts/ch into 8 ohms (20-20 kHz, 0.03%THD) Continuous Power Output Bridge

2、d Mono Mode 150 watts/ch into 8 ohms (20-20 kHz, 0.1% THD)Total Harmonic Distortion 0.03% (20Hz-20kHz, 8 ohms)Intermodulation Distortion0.03% (60 Hz : 7 kHz, 4:1)Frequency Response ( 1 dB) 15 Hz-100 kHzDamping Factor (20-20,000 Hz, 8 ohms) 150Speaker Impedance (combined load) Stereo mode : 4 ohms mi

3、nimum Bridged Mono mode : 8 ohms minimumSignal to Noise Ratio (IHF A network) 116 dBInput Impedance 22 k OhmsInput Sensitivity 1.5 voltAuto Turn On Threshold Level (if activated) 10 mV input signalAuto Turn Off Delay Time (if activated) 5 minutes with no signalPower Requirements USA : 115 Volts, 60

4、Hz Europe : 230 Volts, 50HzPower Consumption 700 WattsDimensions (W x H x D) 440 x 121 x 410 mm173/8 x 43/4 x 161/8 inWeight 12.7kg, 28 lbSHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,TOKYO 150-0045, JAPANSerial. NO.BeginningQuality UncompromisedY-332A-00115C/S-SRadioFans.CN 收音机爱 好者资料库2Parts List-1C

5、501.502C503.504C505.506C507.508C511.512C513.514C515-518C519.520C551D501-504D551.552R501.502R503.504R505.506R507.508R509.510R511.512R513.514R515.516R517.518R519.520R521.522R523.524R525.526R527.528R529-532R533-536R537.538R539R551.552R553.554R555.556R557.558R559R560R561R562R563R564R565T501-506T507.508T

6、509.510T511-514T515.516T551.552T553.554601-.701-C401C407-412C421C422C423 X-1280 PCB ASSEMBLY041 UTES1H100-FB044 S50V330PJ044 S50V220PJ041 UTES1E101-FB041 UTES1H010-FB044 S50V390PJ044 S50V150PJ041 UTES1H100-FB041 UTES1H100-FB034 T1N4148-86034 T1N4148-86054 TMF1001054 TMF2702054 TMF3300054 TMF1501054

7、TMF4700054 TMF6801054 TMF8201054 TMF4300054 TMF47R0054 TMF3302054 TMF1002054 TMF1000054 TMF2201054 TMF6801054 TMF2200054 NIR2-0.22JF 051 SFR001-222054 TMF8201054 TMF2202054 TMF1501054 TMF1201054 TMF1502054 TMF4702054 TMF1003054 TMF4701034 TTC-503 054 TMF8200054 TMF3002054 TMF1501032 TA1016-FG032 TC1

8、941-KL032 TA1016-FG033 B631-EF033 D600-EF032 TC536-FG032 TA608-FGAS SAME AS 501-.X-1281-01 PCB ASSEMBLY041 UTES1H101-FB044 50MSAN104J042 TP50V183J041 UTES1H100-FB044 50MSAN104JCAPACITOR ELEC.50V10UFCAPACITOR STYROL 50V330PFCAPACITOR STYROL 50V220PFCAPACITOR ELEC.25V100UFCAPACITOR ELEC.50V1UFCAPACITO

9、R STYROL 50V390PFCAPACITOR STYROL 50V150PFCAPACITOR ELEC.50V10UFCAPACITOR ELEC.50V10UFDIODEDIODERESISTOR METAL 1KRESISTOR METAL 27KRESISTOR METAL 330RRESISTOR METAL 1.5KRESISTOR METAL 470RRESISTOR METAL 6.8KRESISTOR METAL 8.2KRESISTOR METAL 430RRESISTOR METAL 47RRESISTOR METAL 33KRESISTOR METAL 10KR

10、ESISTOR METAL 100RRESISTOR METAL 2.2KRESISTOR METAL 6.8KRESISTOR METAL 220RRESISTOR METAL 2W 0.22RSEMI-FIXED RESISTOR 2.2KRESISTOR METAL 8.2KRESISTOR METAL 22KRESISTOR METAL 1.5KRESISTOR METAL 1.2KRESISTOR METAL 15KRESISTOR METAL 47KRESISTOR METAL 100KRESISTOR METAL 4.7KTHERMISTORRESISTOR METAL 820R

11、RESISTOR METAL 30KRESISTOR METAL 1.5KTRANSISTOR(2SA1016K-FG)TRANSISTOR(2SC1941-KL)TRANSISTOR(2SA1016K-FG)TRANSISTOR(2SB631K-EF)TRANSISTOR(2SD600K-EF)TRANSISTOR(2SC536K-FG)TRANSISTOR(2SA608K-FG)CAPACITOR ELEC.50V100UFCAPACITOR FILM 50V0.1UFCAPACITOR MYLAR 50V0.018UFCAPACITOR ELEC.50V10UFCAPACITOR FIL

12、M 50V0.1UFC424D421-423K401-404R401-406R407-412R415R416.417R418.419R420R421R422R423R424R425R426R427R428R429R430S401S402.403S404T421.422T423U421C951-954C955C956C957C958C991.992D951-954D955D956F991L951R951R952R953R954R955R956.957R958R959R960S991S992T951-953U951R451-453041 UTES1E101-FB034 T1N4148-86066

13、4TR-2709#3054 TMF1001054 TMF1003054 TMF1502054 TMF1002054 TMF1502054 TMF1002054 TMF1001054 TMF2202054 TMF2203054 TMF1203054 TMF2202054 TMF1002054 TMF1003054 TMF1800054 TMF4702054 TMF4703064 4TR-2294064 C-4606A00064 C-4660A00032 TC536-FG032 TA608-FG031 PC817BX-1281-02 PCB ASSEMBLY043 TC500V103041 UTE

14、S1H471041 UTES1E101-FB041 UTES1E221-FB042 TP50V103J044 DE1307E472M034 T1N4003-TB034 TRD15JST1034 T1N4148-86036 5ST250022 T-1070N01 054 TMF3901054 1WS1KJF 054 TMF8203054 TMF4702054 TMF1004054 TMF1003054 TMF4702054 2WS470JF 054 TMF2202061 C-4176A08 063 DH1U-24032 TC536-FG031 NJM555D019 C-3417AX-1281-0

15、3 PCB ASSEMBLY051 4TR-2972CAPACITOR ELEC.25V100UFDIODE2P PINJACKRESISTOR METAL 1KRESISTOR METAL 100KRESISTOR METAL 15KRESISTOR METAL 10KRESISTOR METAL 15KRESISTOR METAL 10KRESISTOR METAL 1KRESISTOR METAL 22KRESISTOR METAL 220KRESISTOR METAL 120KRESISTOR METAL 22KRESISTOR METAL 10KRESISTOR METAL 100K

16、RESISTOR METAL 180RRESISTOR METAL 47KRESISTOR METAL 470KSLIDE SWITCH (INPUT A)SLIDE SWITCH (INPUT B.C)SLIDE SWITCH (SIGNAL SENSE)TRANSISTOR (2SC536K-FG)TRANSISTOR (2SA608K-FG)PHOTO COUPLERCAPACITOR CERA.500V0.01UFCAPACITOR ELEC.50V470UFCAPACITOR ELEC.25V100UFCAPACITOR ELEC.25V220UFCAPACITOR MYLAR 50

17、V0.01UFSPARK KILLERDIODEZENER DIODEDIODEMINI FUSE 250VT250MASUB TRANSFORMERRESISTOR METAL 3.9KRESISTOR METAL 1W 1KRESISTOR METAL 820KRESISTOR METAL 47KRESISTOR METAL 1MRESISTOR METAL 100KRESISTOR METAL 47KRESISTOR METAL 2W 470RRESISTOR METAL 22KPOWER SWITCHRELAYTRANSISTOR(2SC536K-FG)IC(TIMER)FUSE CL

18、IPVARIABLE RESISTOR 50KBX2SYMBOL PARTS NO.DESCRIPTIONSYMBOL PARTS NO.DESCRIPTIONRadioFans.CN 收音机爱 好者资料库3Parts List-2D481-483D484.485D486D487.488D489D490.491D492K431C801.802C811C812C813D811D812K811L801.802R801.802R811R813R815R816.817R818R819R820R821S811T811U811831-.861-.C901-904C905.906C931.932C933D9

19、01X-1281-04 PCB ASSEMBLY034 LTL4262N034 LTL4296N034 LTL4262N034 LTL4296N034 LTL4262N034 LTL4296N034 LTL4262N019 4TR-3213X-1281-05 PCB ASSEMBLY067 C-4635A02X-1282-01 PCB ASSEMBLY044 50MSAN104J041 UTES1E101-FB041 UTES1E470-FB041 UTES1H4R7-FB034 T1N4148-86034 TRD5.6JST1067 C-4493A01021 TRL-331054 2WS10

20、JF 054 TMF1003054 TMF5602054 TMF1502054 TMF1203054 2WS1.2KJF053 CR14-104J-A053 CR14-474J-A054 TMF1502063 DH2TU-24032 TC536-FG031 MPC1237HAAS SAME AS 801-.X-1282-02 PCB ASSEMBLY043 TC500V103041 50USP682 043 TC500V103041 UTSS1H101-FB034 RS403L LEDLEDLEDLEDLEDLEDLEDLED HOLDER2P TERMINAL BLOCKCAPACITOR

21、FILM 50V0.1UFCAPACITOR ELEC.25V100UFCAPACITOR ELEC.25V47UFCAPACITOR ELEC.50V4.7UFDIODEZENER DIODESPEAKER TERMINALSPEAKER COILRESISTOR METAL 2W 10RRESISTOR METAL 100KRESISTOR METAL 56KRESISTOR METAL 15KRESISTOR METAL 120KRESISTOR METAL 2W 1.2KRESISTOR CARBON 100KRESISTOR CARBON 470KRESISTOR METAL 15K

22、RELAYTRANSISTOR(2SC536K-FG)IC(PROTECTION)CAPACITOR CERA.500V0.01UFCAPACITOR ELEC.50V6800UFCAPACITOR CERA.500V0.01UFCAPACITOR ELEC.50V100UFBRIDGED DIODED902.903D931.932F901.902R901R902R931911-.921-.034 T1N4003-TB034 T1N4003-TB036 5ST6.3 054 TMF3R30054 TMF1802054 TMF47R0069 C-3417AAS SAME AS 901-.HEAT

23、 SINKER ASSEMBLY017 SQ4-16A00019 TO-220019 TO-3PL032 D600-EF033 A1943-RO033 C5200-ROOTHERS011 FP-512012 4TSA-7012 SD4-16A00014 4TR-2797#3014 SQ3-15A00015 RP-367019 4TR-2823#2019 4TSH-19#2022 T-1076N01 034 SEL1124R069 C-4629A01 072 C-4621A01 072 C-4622A01 072 C-4623A01 072 C-4624A01 081 SQ4-31A00081

24、Z-203DIODEDIODEMINI FUSE 250VT6.3ARESISTOR METAL 3.3RRESISTOR METAL 18KRESISTOR METAL 47RFUSE CLIPHEAT SINKERINSULATION SHEET (S)INSULATION SHEET (L)TRANSISTOR(2SD600K-EF) POWER TRANSISTOR(2SA1943-RO)POWER TRANSISTOR(2SC5200-RO)FRONT PANEL ASSYKNOB 11FPUSH BUTTON 12FORNAMENT SIDE BOARDUPPER COVERREA

25、R CHASSISPLASTIC FOOT 24FPLASTIC FOOT 50FPOWER TRANSFORMERLEDAC INLETAC CORD SET for STDAC CORD SET for AUSTRALIAAC CORD SET for UKAC CORD SET for CEEINSIDE CARTONSTYROL MOULDINGSYMBOL PARTS NO.DESCRIPTIONSYMBOL PARTS NO.DESCRIPTIONNOTE ON SAFTY : Symbol Fire or electrical shock hazard. Only origina

26、l parts should be used to replaced any part marked with symbol .Any other component substitution (other than original type), may incease risk of fire or electrical shock hazard.4Instruments : DC millimeterNotes : Prior to Bias Adjustment, run about 5minutes with rated output (8 ohms) And warm up Pow

27、er Transistor and Heat Sink.Set input off.StepK31K32X-1280-01 PCBR537R538X-1280-01 PCB12K33R637X-1280-02 PCB3K34R638X-1280-02 PCB4K35R737X-1280-03 PCB5K36R738X-1280-03 PCB6CouplingLocationAdjust forAdjustDC milli-voltmeter Reads 4mV AdjustmentService NoteCautions during Inspection and Repair1. Keep

28、in mind the safety warningsThe safety instructions are shown as the labels or printings on the exterior, the inside chassis or the parts, etc. Refer to the instructions when proceeding with inspection or repair.2. Use only the specified parts for replacementThe selected parts are used at critical ar

29、ea to reduce fire hazard or electrical shock. So when replacing these parts where designaged with marks or marks on the schematic diagram or the parts list, ensure to use only the same parts. 3. Ensure to dress back the AC (Mains) cord to the original positionIf for some reason, the AC cord is moved

30、 or partially disassembled, ensure to re-route or assemble back to the original position. The AC cord area is protected and secured by tubing and insulation materials for the sake of safety, so that no loose wire will touch and cause fire hazard and electrical shock.4. Check for safety aspects after

31、 inspection or repairEnsure all parts, such as screws or wires, removed during inspection or repair are secured back to the original positions, and check visually for any anomaly. Also check for any electrical leakage or resistance to maintain the safety. 562SA19432SC52002SB631K2SD600K2SC536K2SA608K2SA1016KNJM555D2SC1941MPC1237HAPCB Assembly-1Case Outline78PCB Assembly-2910PCB Assembly-31112Schematic Diagram