Rotel-RX1050_1-rec-sm 维修电路原理图.pdf

T echnicalManual STEREO RECEIVERRX-1050-1Table of ContentsAppearance.2Specifications.1Wiring Diagram.11 Adjustment.9 10PCB Assembly.12 15Schematic Diagram.16 22Parts List.3 8SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,TOKYO 150-0045, JAPANSerial. NO.Beginning Quality UncompromisedY-358A-0112/WTHE ROTEL CO., LTD. SpecificationsAudioContinuous Amplifier Power100 watts/ch (20-20k Hz, 0.05% THD, 8 ohms)Total Harmonic Distortion0.05%Inter modulation Distortion (60 Hz:7 kHz) 98.1MHz search , Low Freq. - 98.1MHz search)911AM Section* Necessary measurement equipment :AM Signal Generator, Audio Signal Analyzer, Dummy Load, Oscilloscope, Digital Volt Meter (DVM)(A) VT adjustAM Signal Generator Setting 1. Adjust AM Frequency of RX-1050 to 522KHz. (or 520KHz)2. Connect (-) terminal of DVM with GND ( or chassis ) and connect (+) terminal with Jumper J3 ( VT CHECK ) and mesaure voltage. ( Low Freq. VT)3. Adjust VT to 1.1V with T02 (AM-OSC Coil).* In case of USA version, AM freq. range is 520KHz 1710KHz. So, adjust as below. at 520KHz, VT = 1.1V ( Low Freq. VT)(B) Output Level adjustAM Signal Generator Setting - Modulation : 30%- Audio Frequency : 400Hz- Output Level : 100dB- Radio Frequency : 603KHz (or 600KHz )RX-1050 Setting - AM Frequency : 603KHz/1404KHz/999KHz (or 600KHz/1400KHz/1000KHz)1. Turn AM Signal Generator Modulation ON2. Adjust RX-1050 AM Freq. to 603KHz (or 600KHz) and measure output level with Audio Signal analyzer.3. Adjust output level to maximum point with T01 ( AM-ANT ).4. Adjust AM Signal Generator & RX-1050 AM Frequency to 1404KHz (or 1400KHz) and measure output level.5. Adjust output level to maximum point with TC01 (White Trimmer).6. Repeat above 2. 5. steps 2 3 times until adusting to best output level.7. Adjust AM Signal Generator & RX-1050 AM Frequency to 999KHz (or 1000KHz) and measure output level.8. Adjust level to maximum position with T03 (AM-IFT).(C) TUNED Level adjustAM Signal Generator Setting - Modulation : 30%- Audio Frequency : 400Hz- Radio Frequency : 999KHz (or 1000KHZ)- Output Level : 84dBRX-1050 Setting - AM Frequency : 999KHz (or 1000KHz)1. Turn AM Signal Generator Modulation ON ( Make sure if Output level is 84dB )2. If TUNED indicator does not turn on at higher than 8086dB(Generator output), Adjust VR01 ( AM-ADJ ) up to the moment where TUNED indicator tunrs OFF & ON again3. Confirm if TUNED turns OFF when decreasing the output level of AM Signal Generator slowly from 84dB to 80dB.4. Push RX-1050 TUNE UP or DOWN button long at AM Signal Generator Output Level 84dB and start AUTO search. Confirm if search stops at AM Frequency 999KHz (or 1000KHz). 999KHz(or 1000KHz) search , Low Freq. - 999KHz(or 1000KHz) search 10123456712 1) ENC VR BD CN603-FRONT BD CP603 2) FRONT BD CN601-RE SEN BD CP601 3) FRONT BD CN606-POW BD CP606 4) FRONT BD CN605-TERMINAL BD CP605 5) FRONT BD CN107-MAIN BD CP107 6) FRONT BD CN610-TUNER BD CN10 7) FRONT BD CN602-AMP BD CP602 8) POW LED-FRONT BD CP604 9) AMP BD CN202-MAIN BD CP10410) AMP BD CN203-MAIN BD CP10611) AMP BD CN201-MAIN BD CP10312) POSISTOR-AMP BD CP20413) MAIN BD CN104-AMP BD CP20114) MAIN BD CN102-TUN BD CP2015) MAIN BD CN108-TERMINAL BD CP10816) MAIN BD CN103-TERMINAL BD CP103 17) MAIN BD CN101-TERMINAL BD CP10118) P/T Primary -POW BD CP50319) P/T Secondary RED/BLK-MAIN BD CP10220) P/T Secondary WHT/GRY-MAIN BD CP10125) H/P BD CN105-MAIN BD CP10526) WIRE CLAMPER-6 POINTS21) P/T Secondary ORG/VIO-POW BD CP50422) AC INLET-POWER BD CP50123) POWER SW BD CN502-POW BD CP50224) OUTLET BD CN505-POW BD CP505OUTLET BDTERMINAL BDBDPOWER TRANSMAIN BD POWER BDAMP BDCN603CP603CN610CN107CN605CN602CN606CN601CP604CP601LEDCN202CN203CN201CP602CP204CP201CP101CP102CP106CP107CN108CN104CN505CP101CP103CP605CP108CN102CN103CN101CP104CP103CP10512000UF12000UFCP502CP501CP505CP503CP504CP606CN502CP20CN10POSISTORAC INCN105 REMBD POW ER SW H/PFRONT BDENC VR BDTUNERWiring Diagram13PCB Assembly (1/4) Front PCB X-1323B Top Side14PCB Assembly (2/4)Front PCB X-1323 Bottom Side15PCB Assembly (4/5)Main PCB E-1322A00Buffer PCB 016 X-1347A00Top_silkBottom_Silk16PCB Assembly (4/4)Amplifier PCB 016 X-1321A00Tuner PCB 4002002301TOP SIDEBOTTOM SIDE1Added wire17Block Diagram18GNDOUTVCCSBX3010-52BCP601CP3PZRMC SENSOR BDFROM FRONT BD016 X-1323A10RMC601123123TO RMC SENSOR BDCN601CN3P123V_REFEXT_RMC21V_REFKEY_IN4KEY_IN3KEY_IN2KEY_IN1FROM ENCORDER VOLUME BDCP603CP8PZ232_RX232_TX9163_CSV MUTEEXT_RMCZONE2 _RMC12345678TO TERMINAL BDCN 8PCN605(CP605)(CP606)(CP602)(CP107)7312_CLK7312_DATA7312_CS9163_CS232_TXVDD-30V232_RXV MUTEZONE2_MUTEMAIN_MUTEPWR_MUTERSTRSTVDD+5.6V7312_Z2_CS7312_REC_CSSTAND_BY_LEDSTAND_BY0TP Version ONLYFL2-30V2 +5.6V-30V45673STAND_BYV_REFPWR_DOWNFL2FL1CN606CN7PTO POWER B D1FL1FIPSVR12MM18SVR12MM18VOL_UP.VL_REF.VL_REF.VL_REF.BASSL_UP.TREBLE_UP.TREBLE_DOWN.BASS_DOWN.016 X-1323A04ENCORDER VOLUME BDVOL_ UP.VL_REF.BASSL_UP.TREBLE_UP.TREBLE_DOWN.VOL_DOWN.BASS_DOWN.VOL_DOWN.12346578CN8PCN603STAND_BY_LEDSTAND_BY_LEDCP2PZCP604RLY_BSPKR_SPKR_RLY_BSPKR_RLY_ASPKR_RLY_AVOL_UP.VL_REF.BASSL_UP.TREBLE_UP.TREBLE_DOWN.VOL_DOWN.BASS_DOWN.TUNEDTO TUNER BD12345612345678CN610TUNER_MUTESTEREO7001_DATA7001_CE7001_CLKSPKR_RLY_ASPKR_RLY_B9459_DATA9459_CE9184_CE7312_CLK7312_DATA7312_CS7312_Z2_CS7312_REC_CS9459_CLK1234567891011121314TO MAIN BDCN14PCN 107REC_MUTEZONE2_MUTEMAIN2_MUTEPROTECTIONV _REF12PWR_MUTECN602CN2PTO AMP BDVOL_UP.V_REF.BASSL_UP.TREBLE_UP.TREBLE_DOWN.VOL_DOWN.BASS_DOWN.SPKR_RLY_ASPKR_RLY_B9459_DATA9459_CLKEXT_RMCZONE2 _RMCTUNEDTUNER_MUTESTEREO7001_DATA7001_CE7001_CLKREC_MUTEPROTECTIONPWR_DOWN9459_CE9184_CE+5.6V313534333236403938374145444342484746495857795053525154565563621220141113212223272829301516241725182619646665696867707271757473767877CXP828321C60180596160P38182839091929394959697989912348657910100848586878889P9P8P7P6P5P4G7G6G3G2G1G12G5G4P2100P100P100P100P100P100PP9P10P11P12P13P14615616617618620619P1VDDG11G10G11G12KEY_IN4KEY_IN3KEY_IN2KEY_IN1G9G8P20P21P221512131411910845673123437252735262324313233302829223619202118161738394041424344P35P35G12G9G10G1145464748495150P9P8P7P6P5P4P3P2P1F2 .F2F1C613473CF1.G1G2G5G6G7G8G3G4G12G9G10G11G1G2G5G6G7G8G3G4P23P24P25P31P26P27P28P29P30P32P33P34P18P16P17P19C614473CP9P8P7P6P5P4P3P2P1P10P11P12P13P14P15P20P21P22P23P24P25P31P26P27P28P29P30P32P33P34P18P10P16P17P19P11P12P13P14P15P20P21P22P23P24P25P31P26P27P28P29P30P32P33P34P18P16P17P19P35P13P14P15P20P21P22P23P24P25P31P26P27P28P29P30P32P33P34P18P16P17P19P35P13P14P15P10P11P12LTL1214ALTL1214ALTL1214AFL6011N41482R22R2D601R614R615R618R620330330330R616LED602LED601LED60310K4.7/50V103CR613C605C606330S614S616S618120K120K120K120K120K120K120K120KC610R630120K120K120K120K120K120K120K120K120K120K120K120K120K120K120KR61222GNDGNDGNDD613IN4148SPEAKER ASPEAKER BZONE2IN4148IN4148IN4148CDMEMORYR611100P100P820P10K10K10K10K10K10KR631820PR628R629C612C607S615820P820PS617R610C608C609D612SW602ENCODER3PENCODER3PSW603SW601D610D611POWER_OPT.2POWER_OPT.1PHONOTUNERBANDFM50K / ONFM50K / 100KAM9K / ONAM9K / 10KVIDEO4TUNER /PRESETTUNER DOUNREC.SELS601S603S605VIDEO3MOMOS602S606S608S607S604S609S611S613S610S612VIDEO2TAPETUNE UPC6113113BBCABCCAA231ENCODER3PR6324k74k7R6074K7100KR608R601R602R603R60447K47K47K47KR633R634R635R636R637R6384k74k74k74k74k71KD604D605R622R625R623R6241K1K1K1KD606D607D608D6091N41481N41481N41481N41481N41481N4148R626R6271KR0622R0623R0621R0612R0611R0610R0609R0608R0607R0606R0605R0604R0603R0602R0601R0618R0617R0616R0615R0614R0613R0620R06191N4148C603100R605103C0.1F / 5.5VC602IN4148D603C601D6020.22 / 50VQ6013.3 / 50VR606KTC107MC6044K7XT60110MHZKTC3198KTC3198KTC3198Q602Q603Q604R621R619R6174K74K74K7R60933KSchematic Diagram (1/6) Front Circuit 016X-1323B01,04,1019Most of the RX1050s that will not power up are because of capC605. It is too high and contacts the 6-tacts when the front panel isassembled. This cap is probably better off being moved to the backof the PCB.Input Buffer Circuit016 X-1347A00INPUTOUT PUTPHONOCDVIDEO 1VIDEO 1VIDEO 2VIDEO 3VIDEO 2VIDEO 4TAPETAPE_OUTP1P3P5P7P9P11P13P12P14P17P19P21 P22P23 P24P20P15 P16P18P10P8P6P4P2J26J21J20CN301016 X1347GNDSchematic DiagramMain PCB (1/2) 016 X-1322A0020SPEAKER BLEFTRIGHT15CN103CN5P-15V+15V7312_CLK7312_DATA342AMPLIFIER BD016 X-1321A00CN203POWER-SCN201CN202CP201SPEAKER ALEFT016 X1323A02016 X1323A02RIGHTTOTERMINAL B DZONE OUTLEFTRIGHTSchematic Diagram (3/6) Main PCB (2/2) 016 X-1322A0021Z5V14K7TO_MAIN-BDLEFT-OUT(CP103)(CP104)(CN104)(CP106)RIGHT-OUT+/- VCCFROM FROM FRONT BDMAIN BDIN_PUTSchematic Diagram (4/6) Amplifier Circuit 016 X-1321A00CP5PZCP20134125L INPUTR INPUT1222CP103RCA403RCA3PRCA3PRCA1PRCA404RCA402VIDEO 4VIDEO PARTVIDEO 3MONITORVIDEO 2_OUTVIDEO 2_INVIDEO 1_OUTVIDEO 1_INCP5PZDOWNCP8PZUPDOWNUPDOWNUPCP605UDUDUD34125634125634125634125JAK401JAK402JAK40378ZONE IN341256SPEAKER AZONE OUTLEFTLEFTCN 101RIGHTRIGHTSchemaic Diagram (5/6) Power Supply, Video Circuit 016 X-1323B02,03,05,09016 X-1323B03016 X-1323B09016 X-1323B05016 X-1323B0223This the correct IC for this PCB, the other one does not work.Schematic Diagram (6/6) Tuner PCB 016 400200230124