Rotel-RT1080-tun-sm 维修电路原理图.pdf

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1、T echnicalManual AM/FM STEREO TUNERRT-1080Table of ContentsSpecificationSpecification.1Parts List.26Adjustment.714PCB Assembly.1516Schematic Diagram .1719SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,TOKYO 150-0045, JAPANSerial. NO.BeginningQuality UncompromisedY-353A-0108/WFM TunerUsable Sensitivit

2、y:12.2 dBf50dB Quieting Sensitivity:20.2 dBf (mono)45.3 dBf (stereo)Signal to Noise Ratio (at 65 dBf):75 dBf (mono)72 dBf (stereo)Harmonic Distortion (at 65 dBf):0.2% (mono)0.3% (stereo)Frequency Response:10 Hz-15 kHz, 3 dBCapture Ratio:2.0 dBAlternate Channel Selectivity:47 dB ( 400 kHz)Spurious Re

3、sponse Ratio:90 dBImage Rejection Ratio:80 dBIF Rejection Ratio:80 dBAM Suppression Ratio:55 dBStereo Separation (100Hz/1 kHz/10 kHz):40 dB/45 dB/35 dBOutput level:1.2VAntenna Input:75 ohms unbalancedAM TunerUsable Sensitivity:300 V/mSelectivity:25 dBHarmonic Distortion:0.5%Image Rejection Ratio:45

4、dBSignal to Noise Ratio:48 dBOutput level:165 mVAntenna Input:Loop AntennaGeneralPower Consumption:10 wattsPower Requirements (AC):115 volts, 60 Hz (USA version)230 volts, 50 Hz (European version)Weight:4.7 Kg/10.4 lb.Dimensions (W x H x D):432 x 92 x 340 mm16 15/16 x 3 5/8 x 13 7/6RadioFans.CN 收音机爱

5、 好者资料库LEFTRIGHTOUTPUTSCOMPUTER I/OFMABAMGANTENNAEXT REM.INANTAT TANTA/BTAPTYTPAFDISPLAYFM IFNARROWFMMONOPOWERDOWNUP1234567890BANDMEMORYAUTOTUNINGPRESETSCANTUNE/PRESET12V TRIGGER IN OUTAM/FM STEREO TUNERMODEL NO. RT-1080POWER CONSUMPTION: 10 WRT-1080AVIS: RISQUE DE CHOC ELECTRIQUENE PAS OUVRIRWARNING

6、:SHOCK HAZARD DO NOT OPENAppearanceRadioFans.CN 收音机爱 好者资料库2Parts List 1/4SYMBOLPARTS NO.DESCRIPTIONJACK2066 C-4764A01 2P PIN JACK JACK1065 YKB21-5103A3.5F JACK JL200,201,JR200,201068 TD02SG-2BASE/POSTC213,266,272,322,407,408,C201,202043 TC16V103-ACERA CAPACITOR AXIAL 0.01uFC203,211,212,215,217,219,2

7、21,043 TC25V223-ACERA CAPACITOR AXIAL 0.022uF223-236,243,C245,246,248,250,251,253,257,267,273,285,C306-308,311,312,314,319,323,324,401,C506,507,509C238-241,255,259,263,271,304,329043 TC50V473-ACERA CAPACITOR AXIAL 0.047uFC316,CL204,CR204, C207-210043 TC50V102-ACERA CAPACITOR AXIAL 1000PFCL277,CR277,

8、 C237043 TC50V101-ACERA CAPACITOR AXIAL 100PF CL273, CR273043 TC50V121-ACERA CAPACITOR AXIAL 120PFC242043 TC50V151-ACERA CAPACITOR AXIAL 150PFC302043 TC50VCH180CERA CAPACITOR AXIAL 18PFC309043 TC50V221-ACERA CAPACITOR AXIAL 220PFC280,CL271,CR271043 TC50V271-ACERA CAPACITOR AXIAL 270PFC405, C406043 T

9、C16V332-ACERA CAPACITOR AXIAL 3300PFC276043 TC50V331-ACERA CAPACITOR AXIAL 330PFC205,206043 TC50VCH330CERA CAPACITOR AXIAL 33PFC328043 TC50V471-ACERA CAPACITOR AXIAL 470PFC260043 TC50V681-ACERA CAPACITOR AXIAL 680PFC275043 TC50V680-ACERA CAPACITOR AXIAL 68PFC503,505043 TC500V103CERAMIC CAPACITOR 500

10、V0.01uFCF301023 SFPS450HCERAMIC FILTER (AM)CF201,202,204023 SFE10.7M-04CERAMIC FILTER (FM)CF203023 SFE10.7M-03CERAMIC FILTER (FM)CF205023 CSB456F11CERAMIC RESONATORXTL401023 CSB456F15CERAMIC RESONATORTL301021 RLV155A00 COIL 072 (RED)TL303021 RLV159A00 COIL 713 (YELLOW)LFL200,LFR200021 RLV156A00COIL

11、01 (BLACK) TL201021 RLV164A00COIL 5053 (WHITE) TL202021 RLV165A00COIL 5054 (BLUE) TL302021 RLV162A00COIL 5232 (GRN)TL304021 RLV163A00COIL 5908 (BLACK)CP204068 B7B-PH-KSCONNECTOR POSTCP201068 00-8370-211CONNECTOR POSTCP502,503068 B2P3-VHCONNECTOR POSTCP501068 MO5267-07CONNECTOR POSTCN501068 C-4652A05

12、CONNECTOR W/WIRECN503068 C-4695A03CONNECTOR W/WIRE (BLK)CN203068 C-4750A01CONNECTOR W/WIRE (BLK)C540019 C-4357A03COVER CAP.XTL201023 HC49U-004 CRYSTAL 7.2MHZD202-205,210-212,303-305,307,034 T1N4148-86DIODE308,509,D209D201,501-505, D511034 1N4004DIODEC204,216,252,282-284,321041 UTES1C101-FBELECTROLYT

13、IC CAPACITOR 16V100uFC512041 UTES1C221-FBELECTROLYTIC CAPACITOR 16V220uFC218,222,313,402-404,511,513,514041 UTES1C470-FBELECTROLYTIC CAPACITOR 16V47uFC501041 UTES1V332ELECTROLYTIC CAPACITOR 35V3300uFC261,268,269041 UTES1HR47-FBELECTROLYTIC CAPACITOR 50V0.47uFCL201,202,CR201,202041 UTES1H220-FBELECTR

14、OLYTIC CAPACITOR 50V22uFC214,325041 UTES1H3R3-FBELECTROLYTIC CAPACITOR 50V3.3uFC281041 UTES1H330-FBELECTROLYTIC CAPACITOR 50V33uFC327,502,515041 UTES1H470-FBELECTROLYTIC CAPACITOR 50V47uFPCB ASSY 016X-1304A01-053Parts List 2/4SYMBOLPARTS NO.DESCRIPTIONC247,249,254,262,264,265 041 UTES1H010-FB ELECTR

15、OLYTIC CAPACITOR 50V1uFC274,278,279,409,412,508 041 UTES1H100-FB ELECTROLYTIC CAPACITOR 50V10uFC516 041 UTES1H2R2-FB ELECTROLYTIC CAPACITOR 50V2.2uFC270,326,411,413,504 041 UTES1H4R7-FB ELECTROLYTIC CAPACITOR 50V4.7uFFFE200092 FTA4-460HFRONT-END017 C-4755A10HEAT SINK for IC501IC202,203031 LA1235ICIC

16、301031 LA1245ICIC401031 LA2230ICIC204031 LA3450ICIC201031 LC72191MICIC205031 TL072CPICIC501031 NJM317FICICM101031 PC817BICR277054 2WS10JFMETAL FILM RESISTOR 10RR509054 2WS270JFMETAL FILM RESISTOR 270RR230054 CR1W2M2METAL FILM RESISTOR 2M2R507054 2WS330JFMETAL FILM RESISTOR 330RR405,410054 TMF16-3004

17、MF RESISTOR MF16 3MR300054 TMF16-1501MF RESISTOR MF16 1.5KR506054 TMF16-1801MF RESISTOR MF16 1.8KR299054 TMF16-1004MF RESISTOR MF16 1MR203,204,207,272,273,291,301,302,R309054 TMF16-1003MF RESISTOR MF16 100K 320,RL205,RL295,RR205,RR295,R292,R208R303,311,515054 TMF16-1000 MF RESISTOR MF16 100RR224,278

18、,283,289,308,319,321054 TMF16-1002MF RESISTOR MF16 10KR409,412,502,514,517, R508R284,285054 TMF16-1200 MF RESISTOR MF16 120RR516054 TMF16-1202MF RESISTOR MF16 12KR240054 TMF16-1500 MF RESISTOR MF16 150RR243054 TMF16-1502MF RESISTOR MF16 15KRL294,RR294054 TMF16-1803MF RESISTOR MF16 180KR274, R281054

19、TMF16-1802MF RESISTOR MF16 18KR214-218,233,276,404,406,511054 TMF16-1001MF RESISTOR MF16 1K R312, R282, R205R505054 TMF16-2000 MF RESISTOR MF16 200RR222,231,232,306,307, R316,317054 TMF16-2200 MF RESISTOR MF16 220RR211-213R413, R513054 TMF16-2202MF RESISTOR MF16 22KR247,298054 TMF16-22R0 MF RESISTOR

20、 MF16 22R R504, RM101054 TMF16-2700MF RESISTOR MF16 270RR238054 TMF16-2702MF RESISTOR MF16 27KR314054 TMF16-2001MF RESISTOR MF16 2K R246,260,279,286,408,RL201,054 TMF16-3301MF RESISTOR MF16 3.3KRL206,RR201,RR206R236,239,242,249,257,258,263,054 TMF16-3300MF RESISTOR MF16 330R265,266,271,R226R411054 T

21、MF16-3302MF RESISTOR MF16 33KR244,248,262054 TMF16-3900MF RESISTOR MF16 390RR261054 TMF16-39R0 MF RESISTOR MF16 39RR201,250,264,313,518054 TMF16-4701MF RESISTOR MF16 4.7KR297,400, R501R241,305,RL204,RR204054 TMF16-4700MF RESISTOR MF16 470RR275,520054 TMF16-4702MF RESISTOR MF16 47KR225,288,407054 TMF

22、16-5601MF RESISTOR MF16 5.6KR223,401,402054 TMF16-5600MF RESISTOR MF16 560RR519054 TMF16-5602MF RESISTOR MF16 56K4Parts List 3/4SYMBOLPARTS NO.DESCRIPTIONR245,259,RL202,RR202054 TMF16-6801MF RESISTOR MF16 6.8KR403054 TMF16-6803MF RESISTOR MF16 680KRL203,RR203054 TMF16-8201MF RESISTOR MF16 8.2KR30405

23、4 TMF16-8200MF RESISTOR MF16 820RR503054 TMF16-8202MF RESISTOR MF16 82KR202,318054 TMF16-82R0 MF RESISTOR MF16 82RL201-206, L500021 LF160A00MICRO INDUCTOR L207021 2648601430MICRO INDUCTOR 20.8mHJL200,JR200,068 DM-2GM-OMINI JUMPER PLUG (US)JL201,JR201068 DM-2GM-OMINI JUMPER PLUG (EU)C415,416042 TP50V

24、332JMYLAR CAPACITOR 3300PFCL203,CR203042 TP50V392JMYLAR CAPACITOR 3900PFC417042 TP50V682JMYLAR CAPACITOR 6800PFC330,414042 TP50V223JMYLAR CAPACITOR 0.022uFSW201061 C-4176A08POWER SWITCHRLY201,202063 G5A-237PRELAYVR401051 TRH063MC14RSEMI-FIXD RESISTOR VOLUME 100KVR204051 TRH063MC16RSEMI-FIXD RESISTOR

25、 VOLUME 1MVR203,VR301051 TRH063MCJ4RSEMI-FIXD RESISTOR VOLUME 22KVR205051 TRH063MCS5RSEMI-FIXD RESISTOR VOLUME 470KVR201051 TRH063MCS4RSEMI-FIXD RESISTOR VOLUME 47KVR206051 TRH063MCS3RSEMI-FIXD RESISTOR VOLUME 4K7C317044 50MSAN473JSF CAPACITOR 0.047uFC318044 50MSAN563JSF CAPACITOR 0.056uFC540044 DE1

26、307E472MSPARK KILLER C301044 S50V470PJSTYROL CAPACITOR 47PFANT201067 SC021058KNTERMINAL ANTNNAANT200065 YKD31-0432TERMINAL ANTNNAQ223032 2K117YTRANSISTORQ212,301032 2K192GRTRANSISTORQ209,211032 TC174OS-RTRANSISTORQ222,501,504032 TDTC114YSTRANSISTORQ213-216032 C1674-KLTRANSISTORQ201,202,219,506032 TC

27、536-FGTRANSISTORQL201,QR201032 TC2878-ATRANSISTORQ204,206,207,225,302,505032 TDTA114YSTRANSISTORQ502032 TA608-FGTRANSISTORQ503032 TC3708-STTRANSISTORTC302045 TZ03R200TRIMMER (RED)TC301045 TZ03N100TRIMMER (WHT)D301,302034 KV1236ZVARACTOR DIODED208,401034 TRD5.1JST1ZENER DIODE D510034 TRD5.6JST1ZENER

28、DIODE D507034 TRD6.2JST1ZENER DIODE D508034 TRD12JST1ZENER DIODE D506034 TRD30JST1ZENER DIODE JACK4065 YKB21-5111A3.5F JACK WITH SWITCHJACK5065 YKB21-5103A3.5F JACK WITH SWITCHCPM100068 S2B-PH-KSCONNECTOR POSTCPM103068 S4B-PH-KSCONNECTOR POSTCP604068 B7B-PH-KSCONNECTOR POSTCM101041 UTES1H100-FB ELEC

29、TROLYTIC CAPACITOR 50V10uFC601-605041 UTES1H010-FB ELECTROLYTIC CAPACITOR 50V1uFIC601031 HIN232CPICIC602031 PC817BICRMC201031 SBX3010-52BICPCB ASSY 016 X-1305B01-025Parts List 4/4SYMBOLPARTS NO.DESCRIPTIONRM102054 TMF16-1000 METAL MILM RESISTOR 100RRM103054 TMF16-1500 METAL MILM RESISTOR 150RR601,60

30、2054 TMF16-1001 METAL MILM RESISTOR 1KR603054 TMF16-2200 METAL MILM RESISTOR 220RRM104054 TMF16-4701 METAL MILM RESISTOR 4.7KJACK3066 SY010-8P/KMODULAR JACKQM101032 TC536-FGTRANSISTORD601-604034 TRD12JST1ZENER DIODE C110,111043 TC50V473-ACERAMIC CAPACITOR 0.047uFC109,113,116043 TC50V104-ACERAMIC CAP

31、ACITOR 0.1uFC118043 TC50V102-ACERAMIC CAPACITOR 1000PFC101-108043 TC50V101-ACERAMIC CAPACITOR 100PFC117043 TC50V821-ACERAMIC CAPACITOR 820PFXT101023 CST10.0MTWCERAMIC RESONATORD101-108034 T1N4148-86DIODE C112041 UTES1H220-FB ELECTROLYTIC CAPACITOR 50V22uFFL101035 SVR12MM18FL TUBEFPC201068 00-8370-21

32、7FPC WIRE CONNECTOR 21PIC102031 AT24C16PC-2.7ICIC101031 CXP82832-310QICR137-143,145054 TMF16-1201METAL FILM RESISTOR 1.2KR136,152-159,160054 TMF16-1002METAL FILM RESISTOR 10KR150,151054 TMF16-2R20METAL FILM RESISTOR 2.2RR144,146-149054 TMF16-4702METAL FILM RESISTOR 47KCN102068 C-4692A26PH/SAN W/WIRE

33、 L=200CN101068 C-4692A29PH/SAN W/WIRE L=300CN103068 C-4692A06PH/SAN W/WIRE L=80SW101-126061 C-4679A01TACT SWITCHQ101032 TC536-FGTRANSISTORPCB ASSY 016 X-1302A00OTHERS015 RP-387019 4TSH-19#2021 RLA145A00034 SEL1124R069 C-4629A01072 4TR-2489072 4TR-2875072 4TR-3228072 C-4620A01072 C-4622A01072 C-4623A

34、01072 C-4624A01081 SK4-10A00081 TZ-164-1092 RR-T92PRINTED REAR CHASSISPLASTIC FOOT 50FAM LOOP ANTENNALEDAC INLET3.5MM PLUG SHIELD CORDRCA PIN CORDT TYPE ANTENNA AC CORD SET for STDAC CORD SET for AUSTRALIA AC CORD SET for UKAC CORD SET for CEEINSIDE CARTONSTYROL SIDE MOULDINGREMOTE UNIT6AdjustmentI

35、FM* Necessary measurement equipmentRDS/STEREO Multiplexer 1 unitFM/AM Signal Generator 1 unitAudio Signal Analyzer 1 unitOscilloscope 1 unitDigital Volt Meter (DVM) 1 unit(A) Center adjust RDS/STEREO Multiplexer Setting MODE : MONO Audio Frequency : 1KHz FM Signal Generator Setting Deviation : 75KHz

36、 Radio Frequency : 98.0MHz Output Level : 66dB RT955 Setting FM Frequency : 98.0MHz Antenna Selection : A FM MODE : MONO IF MODE : WIDEq Turn FM Signal Generator Modulation onw Connect DVM (+)(-) terminals to both ends of resistor R282 and measure the volt.e Make this measured volt 0 by adjusting TL

37、201(FM-DET-A Coil). (The adjustment should be within 2mV)r After this adjustment, measure THD(Total Harmonic Distortion) with Audio Signal Generator.t Adjust THD to minimum point with TL202(FM-DET-B Coil). (THD should be within 0.5%)OscilloscopeMonitorAudioSignalAnalyzerL-CH(or R-CH)Jack 2Ant-B(ANT

38、201)Ant-A(ANT 200)FMSignalGeneratorStereoMultiplexerDVM(+)(-)IC 203BACKFRONT(FM-DET-B)TL 202TL 201(FM-DET-A)R 2827(B) Channel Separation adjust RDS/STEREO Multiplexer Setting MODE : STEREO (ONLY L-CH Signal OUT) Audio Frequency : 1KHz FM Signal Generator Setting Deviation : 75KHz Radio Frequency : 9

39、8.0MHz Output Level : 66dB RT955 Setting FM Frequency : 98.0MHz Antenna Selection : A FM MODE : STEREO IF MODE : WIDEq Turn FM Signal Generator Modulation on after modulating only L-CH at STEREO Multiplexer.w Confirm if STEREO indicator is turned ON on the display in the WIDE MODE.e Measure output l

40、evel via Audio Signal Analyzer and make the level as standard.r Turn FM Signal Generator Modulation on after modulating only R-CH at STEREO Multiplexer.t Measure output level via Audio Signal Analyzer (measure per a dB)y Adjust output level to minimum position with VR204 (WIDE MODE CH-SEPA. ADJ.). (

41、lower than -40dB)u Change RT955 IF MODE to NARROW.i Repeat the above qto Adjust output level to minimum point with VR205(NARROW MODE CH-SEPA. ADJ). (lower than -38dB)OscilloscopeMonitorAudioSignalAnalyzerL-CH(or R-CH OPEN)Jack 2Ant-B(ANT 201)Ant-A(ANT 200)SignalGeneratorStereoMultiplexerVR 204(Wide)

42、VR 205(Narrow)IC 204BACKFRONT8(C) TUNED Level adjust RDS/STEREO Multiplexer Setting MODE : STEREO Audio Frequency : 1KHz FM Signal Generator Setting Deviation : 75KHz Radio Frequency : 98.0MHz Output Level : 26dB RT955 Setting FM Frequency : 98.0MHz Antenna Selection : A FM MODE : STEREO IF MODE : W

43、IDEq Turn FM Signal Generator Modulation ON (confirm if output level is 26dB)w measure volt while connecting DVM (-) terminal to GND (or Chassis) & connecting (+) terminal to Jumper J615(S-METER).e Adjust volt to 1.2V with VR201 (FM-ADJ1).r Adjust VR206(FM-ADJ2) up to the moment where STEREO & TUNED

44、 indicator turns OFF & ON again. t Confirm if STEREO & TUNED turn OFF when decreasing the output level slowly from 26dB to 25dB, 24dB. (Repeat the above er if not OFF in lower than 24dB.)y Set RT955s Search by MODE to AUTO at Signal Generator Output Level 26dB and start Auto search Tuning Encoder. C

45、onfirm if search stops at FM Frequency 98.0MHz. (Examine both of High Freq. 98.0MHz search, Low Freq. 98.0MHz search)OscilloscopeMonitorAudioSignalAnalyzerL-CH(or R-CH)Jack 2Ant-B(ANT 201)Ant-A(ANT 200)SignalGeneratorStereoMultiplexerVR 206(FM-ADJ 2)VR 201(FM-ADJ 1)S-METERCP 201J 615DVM(+)(-)GND(or

46、Chassis)IC 203IC 202BACKFRONT9(D) RDS Level adjust RDS/STEREO Multiplexer Setting MODE : STEREO Audio Frequency : 1KHz RDS MODE : ON FM Signal Generator Setting Deviation : 75KHz Radio Frequency : 98.0MHz Output Level : 35dB RT955 Setting FM Frequency : 98.0MHz Antenna Selection : A FM MODE : STEREO

47、 IF MODE : WIDEq Make sure that RDS/STEREO Multiplexer RDS Modulation is ON and turn FM Signal Generator Modulation ONw Connect oscilloscope terminal to low measuring point of C406(RDS ADJ) and measure. Make sure that the following waveform is output.e Adjust waveform to maximum level with VR401(RDS

48、 ADJ).r Confirm if RDS indicator is ON.OscilloscopeMonitorAudioSignalAnalyzerL-CH(or R-CH)Jack 2Ant-B(ANT 201)Ant-A(ANT 200)SignalGeneratorRDS/StereoMultiplexerVR 401(RDS-ADJ)C (406)(RSD-ADJ)(+)(-)GND(or Chassis)IC 401BACKFRONT10I AM* Necessary measurement equipmentAM Signal Generator 1 unitAudio Si

49、gnal Analyzer 1 unit DUMMY 1 unit Oscilloscope 1 unitDigital Volt Meter (DVM) 1 unit(A) VT adjust AM Signal Generator Settingq Adjust AM Frequency of RT-955 to 522KHz.w Connect (-) terminal of DVM with GND (or chassis) and connect (+) terminal with Jumper J288 (VT CHECK ) and measure voltage. (Low F

50、req. VT)e Adjust VT to 1.1V with TL301 (AM-OSC Coil).r Adjust AM Frequency of RT-955 to 1611KHz.t Measure VT and adjust VT to 7.5V with TC301 (WHITE Trimmer). (High Freq. VT)y Repeat above w t steps 2 or 3 times until VT becomes 1.1V at AM Freq. 522KHz, and VT becomes 7.5V at 1611KHz. *In case of US