Technics-SADX1050-avr-sm维修电路原理图.pdf

Order No. MD0104077C2 AV Control Stereo Receiver SA-DX1050 Colour (K) . Black Type E . Europe EB . Great Britain EG . Germany and Italy SPECIFICATIONS 1 RadioFans.CN 收音机爱 好者资料库 FM Tuner Section Frequency range87.5-108.0 MHz Sensitivity S/N 30 dB 1.5 V / 75 S/N 26 dB 1.3 V / 75 S/N 20 dB 1.2 V / 75 IHF usable sensitivity (IHF58) 1.5 V / 75 IHF 46 dB stereo quieting sensitity 22 V / 75 Total harmonic distortion MONO0.2% STEREO0.3% S/N MONO60 dB (73 dB, IHF) STEREO58 dB (67 dB, IHF) Frequency response 20 Hz-15 kHz+1 dB, -2 dB Alternate channel selectivity 400 kHz 65 dB Capture ratio1.5 dB Image rejection at 98 MHz40 dB IF rejection at 98 MHz70 dB Spurious response rejection at 98 MHz 70 dB AM suppression50 dB Stereo separation 1 kHz40 dB Carrier leak 19 kHz-30 dB (-35 dB, IHF) 38 kHz-50 dB (-55 dB, IHF) Channel balance (250 Hz-6.3 kHz)1.5dB Limiting point 1.2 V Bandwidth IF amplifier180 kHz FM demodulator1000 kHz Antenna terminal 75 (unbalanced) AM Tuner Section Frequency range522-1611 kHz (9 kHz steps) 530-1620 kHz (10 kHz steps) Sensitivity 20 V, 330 V / m Selectivity (at 999 kHz)55 dB IF rejection (at 999 kHz)50 dB Video Section Output voltage at 1 V input (unbalanced) 10.1 Vp-p Maximum input voltage1.5 Vp-p Input/output impedance 75 (unbalanced) Amplifier Section Power output 2 RadioFans.CN 收音机爱 好者资料库 Power output 3 (at 230V for Continental Europe) (at 240V for the United Kingdom,Australia and New Zealand) DIN 1 kHz (T.H.D. 1%) 2 x 100W (6 ) 20 Hz-20 kHz continuous power output both channels driven 2 x 80W (6 ) Total harmonic distortion rated power at 20 Hz-20 kHz 0.09% (6 ) half power at 1 kHz 0.03% (6 ) Power output at 1 kHz each channel driven DIN 1kHz (T.H.D.1%) Front 2 x 100W (6 ) Center 100W (6 ) Surround 2 x 100W (6 ) Power bandwidth both channels driven, -3 dB 10 Hz-70 kHz (6 , 0.9%) Damping factor 30 (6 ) Load impedance Front A or B 4-16 A and B 8-16 Center 6-16 Surround 6-16 Frequency response PHONORIAA standard curve (30 Hz- 15 kHz)0.8 dB CD ,TAPE/MD ,DVD ,TV ,VCR1 ,VCR210Hz-40 kHz, 3dB Input sensitivity and impeadance PHOTO 3 mV / 47 k CD ,TAPE/MD ,DVD ,TV ,VCR1 ,VCR2 200 mV / 22 k S/N at rated power (6 ) PHONO70 dB (IHF, A: 80 dB) CD ,TAPE/MD ,DVD ,TV ,VCR1 ,VCR275 dB (IHF, A: 85 dB) DVD 6CH100 dB (IHF A, Rated Power, S=2 V), 75 dB (IHF, A :85 dB) Output voltage TAPE/MD REC (OUT), VCR 1 OUT200mV Tone controls BASS50 Hz, +10 to -10 dB TREBLE20 kHz, +10 to -10 dB Channel balance (250 Hz-6.3 kHz)1 dB Channel separation 55 dB Headphones output level and impeadance 430 mV / 330 Subwoofer frequency response (-6 dB) 7 - 200 Hz Digital input Optical2 Coaxicial1 4 General Power supply For Continental EuropeAC 230V, 50 Hz For the United Kingdom, Australia and New Zealand AC 230-240 V, 50 Hz Power consumption230 W Dimensions (W x H x D)430 x 158 x 375 mm (16-15/16” x 6-7/32” x 14-25/32”) Mass10.0 kg (22 lb.) Power consumption in standby mode:2 W Notes: 1. Specifications are subject to change without notice. / Mass and dimensions are approximate. 2. Total harmonic distortion is measured by the digital spectrum analyzer. * Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. * Manufactured under license from Digital Theater System. “DTS” and “DTS Digital Surround” are trademarks of Digital Theater System. 2001 Matsushita Electronics (S) Pte. Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. 1. Before Repair and Adjustment Disconnect AC power, discharge Power Supply Capacitors C1702 through a 10 , 5 W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screw driver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac, to avoid over current. Current consumption at AC 230 V, 50 Hz in NO SIGNAL mode should be 200600 mA (for E/EG 5 only). Current consumption at AC 230 V/240 V, 50 Hz in NO SIGNAL mode should be 200600 mA (for EB only). 2. Protection Circuitry The protection circuitry may have operated if either of the following conditions are noticed: - No sound is heard when the power is turned on. - Stops during a performance. The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are “shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used. If this occurs, follow the procedure outlines below: 1. Turn off the power. 2. Determine the cause of the problem and correct it. 3. Turn on the power once again after one minute. Note: When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again. 3. Accessories AC Main Lead (E/EG). 1 pc. AC Main Lead (EB). 1 pc. AM Loop Antenna Set / . 1 set. 6 Antenna Plug (EB). 1 set. FM Indoor Antenna. 1 pc. Remote Control / Transmitter. 1 pc. 4. Caution for AC Mains Lead 7 5. Front Panel Controls 5.1. Front Panel 8 5.2. Remote Control 9 6. Disassembly and Main Component Replacement Procedures “ATTENTION SERVICER” Some chassis components maybe have sharp edges. Be careful when diassembling and servicing. 10 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. 2. For reassembly after operation checks or replacement, reverse the respective procedures. / Special reassembly procedures are described only when required. 3. Select items from the following index when checks or replacement are required. Content - Disassembly Procedure for each major P.C.B. . P.g. 79 - Main Component Replacement Procedures 1. Replacement of the Power IC and Regulator Transistor. P.g. 10 2. Installation of the bottom cover after replacement. . P.g. 11 6.1. Disassembly Procedure for each major P.C.B. Step 1 Farads. - Resistance values are in ohms, unless specified otherwise, 1K= 1,000(ohms). - The marking (RTL) indicates that the Retention Time is limited for this item. After the discontinuation of this assembly in production, the item will continue to be available for a specific period of time. The retention period of availability is dependant on the type of assembly, and in accordance with the laws govening part and product retention. After the end of this period, the assembly will no longer be available. - M indicates in the Remarks columns indicates parts that are supplied by MESA. - The “(SF)” mark denotes the standard part. - Remote Control Unit: Supply period for three years from terminal of production. - Reference for O/I book languages are as follows : Ar : ArabicCf : Canadian FrenchCz : CzechDa : Danish Du : DutchEn : EnglishFr : FrenchGe : German It : ItalianKo : KoreanPo : PolishRu : Russian Sp : SpanishSw : SwedishCo : Traditional ChineseCn : Simplified Chinese 13.1. Cabinet 13.1.1. Cabinet Parts Location 27 13.1.2. Cabinet Parts List 28 Ref. No.Part No.Part Name & DescriptionRemarks CABINET AND CHASSIS 1RAN0002EMTUNER MODULEM 2REM0080BFAN UNITM 3RGB0031-A1LTECH BADGEM 4RGK0995-2SSELECTOR RINGM 5RGK1337-SVOLUME RINGM 6RYQ0363-QHALF MIRROR UNITM 8RGL0533-QDIGITAL LIGHT GUIDEM 9RGL0535-QMOS LIGHT GUIDEM 10RGL0536-QSEL LIGHT GUIDEM 11RGP0843C-KFRONT PANELM 12RGQ0231-KFAN COVERM 13RGR0306G-AREAR PANELMEG E 13RGR0306G-BREAR PANELMEB 14RGU1390-KVCR2 BUTTONM 15RGU1941C-KMODE BUTTONM 16RGU1942-KTONE BUTTONM 17RGU1945-KDIGITAL BUTTONM 18RGU1946-KPOWER BUTTONM 19RGU1947-Q6CH BUTTONM 20RGW0280-KSELECTOR KNOBM 21RGW0359-KVOLUME KNOBM 22RHD26016SCREW (PHONE JACK)M 23RHD30070EARTH TERMINALM 24RHN90001M9 NUTM 25REE1071FCC1 (PANEL-DIGITAL)M 26RKA0079A-ALEG UNITM 27RKM0373C-KCABINETM 28RKQ0089APCB SUPPORTM 29RKW0634-QFL WINDOWM 30RMC0158-STRANSISTOR HOLDERM 31RMK0320-1BOTTOM CHASSISM 32RMN0628FL HOLDERM 33RMN0630LED HOLDERM 34RMN0648PCB SUPPORT 2M 35RMN0649WIRE CLAMPERM 36RMV0219BARRIERM 38RXX0233HEAT SINK UNITM 39SHR301WIRE CRAMPERM 40SHR9683PCB SUPPORT 1M 41SNE2129-3SCREW (CABINET)M 42XTB3+20JFZSCREWM 43XTB3+35JFZSCREW (FAN)M 44XTB3+6GSCREWM 45XTB3+8FFZSCREWM 46XTB3+8JFZSCREWM 47XTBS26+10JSCREWM 48XTBS3+8JFZ1SCREWM 49XTN26+8GFZSCREW (COBRA COVER)M 50XTW3+15TSCREWM 51XTWS3+8TSCREWM 54REE1072FCC2 (MAIN-DIGITAL)M 55RMQ1030HEAT SINK ANGLEM 29 Ref. No.Part No.Part Name & DescriptionRemarks 57RGL0537-QSTANDBY LIGHT GUIDEM 58RMR1165-KSPEAKER COVERM 59RMZ0339ZENER COVERM 13.2. Components Parts List Ref. No.Part No.Part Name & DescriptionRemarks P.C.B. REP3106E-MSUB-TRANSFORMER P.C.B./MAIN P.C.B./TRANSFORMER P.C.B./ PHONO EQ P.C.B./VCR P.C.B./FRONT SPEAKER A P.C.B. MRTL E EG REP3106F-MSUB-TRANSFORMER P.C.B./MAIN P.C.B./TRANSFORMER P.C.B./ PHONO EQ P.C.B./VCR P.C.B./FRONT SPEAKER A P.C.B. MRTL EB REP3104H-SS-VIDEO P.C.B./HEADPHONE P.C.B./PANEL P.C.B./LED P.C.B./ SWITCH P.C.B. MRTL RAN0002EMTUNER PACK P.C.B. MRTL REP3107S-TDIGITAL P.C.B. MRTL INTEGRATED CIRCUITS IC301NJM2279DIC VIDEO SELECTOR SWM IC302NJM2279DIC VIDEO SELECTOR SWM IC351NJM2279MTE1IC VIDEO SELECTORM IC401TC9163ANIC SELECTORM IC402NJM4580DDIC OP AMPM IC451AN6558FIC OP AMPM IC601RSN310R37-P3 CH HIC M IC651RSN313H25-PIC HIC M IC901C2BBGF000262IC MICOMM IC970LC72720NIC RDSM IC1001CS49326-CLRIC AC-3/DTS DECODERM IC1002CS4226-KQGIC DIR/DAC/VOLM IC1003SN74LV244APWIC CONVERTERM IC1004SN7AHCT244PWIC CONVERTERM IC1005SN74HCU04APWIC INVERTERM IC1006SNAHC1U04DBVIC OSCILLATORM IC1201NJM2060MTE1IC OP AMPM IC1203NJM4580MTE1IC OP AMPM IC1230NJM2060MTE1IC OP AMPM IC1231NJM4580MTE1IC OP AMPM IC1301NJM2060MTE1IC OP AMPM IC1302NJM2060MTE1IC OP AMPM IC1401TC9162AFIC SELECTORM IC1402TC9482FIC VOLUMEM IC1451NJM4580MTE1IC OP AMPM IC1452NJM2060MTE1IC OP AMPM IC1521NJM2115MTE1IC OP AMPM IC1522NJM2115MTE1IC OP AMPM IC1701BA25BC0FPIC REGULATOR M TRANSISTORS 30 Ref. No.Part No.Part Name & DescriptionRemarks Q3512SD592AQSTATRANSISTOR M Q3522SB621AQSTATRANSISTOR M Q4012SK2880CTATRANSISTORM Q4022SK2880CTATRANSISTORM Q5512SD1915FTATRANSISTORM Q5522SD1915FTATRANSISTORM Q5532SD1915FTATRANSISTORM Q5542SD1915FTATRANSISTORM Q5552SD1915FTATRANSISTORM Q5562SD1915FTATRANSISTORM Q5572SD1915FTATRANSISTORM Q560RVTDTA114ESTTRANSISTOR M Q601RVTDTA143XSTTRANSISTORM Q602RVTDTA143XSTTRANSISTORM Q603RVTDTA143XSTTRANSISTORM Q604RVTDTA114ESTTRANSISTOR M Q605RVTDTA114ESTTRANSISTOR M Q651RVTDTA143XSTTRANSISTORM Q652RVTDTA143XSTTRANSISTORM Q7012SD2374PQAUTRANSISTOR M Q7032SC1740SQSTATRANSISTOR M Q7042SC1740SQSTATRANSISTOR M Q7062SC3940AQSTATRANSISTOR M Q7072SA1534AQRTATRANSISTOR M Q7082SB1548PQAUTRANSISTOR M Q723RVTDTA114ESTTRANSISTOR M Q724RVTDTC114ESTTRANSISTOR M Q725RVTDTC114YSTTRANSISTOR M Q751RVTDTC143ZSTTRANSISTORM Q7522SC3940AQSTATRANSISTOR M Q7532SK2880CTATRANSISTOR M Q754RVTDTC114ESTTRANSISTOR M Q7712SA933SQRSTATRANSISTORM Q7722SC1740SQSTATRANSISTORM Q7732SB621AQSTATRANSISTORM Q774RVTDTA113ZSTTRANSISTORM Q775RVTDTA114ESTTRANSISTORM Q7762SC1740SQSTATRANSISTORM Q7772SA933SQRSTATRANSISTORM Q7782SA933SQRSTATRANSISTORM Q7792SA933SQRSTATRANSISTORM Q7802SA933SQRSTATRANSISTORM Q7812SC1740SQSTATRANSISTORM Q901RVTDTC114YSTTRANSISTORM Q9022SA933SQRSTATRANSISTORM Q903RVTDTA114ESTTRANSISTORM Q904RVTDTC114YSTTRANSISTORM Q9052SA933SQRSTATRANSISTORM 31 Ref. No.Part No.Part Name & DescriptionRemarks Q9062SA933SQRSTATRANSISTORM Q1001DTA114YETLTRANSISTORM Q16812SD1915FTATRANSISTORM Q16822SD1915FTATRANSISTORM Q17012SD2137PQTATRANSISTOR M Q17022SD2374PQAUTRANSISTOR M Q17032SC1740SSTATRANSISTOR M DIODES D301RVD1SS133TADIODEM D302RVD1SS133TADIODEM D351UDZSTE175R6BDIODEM D352UDZSTE175R6BDIODEM D3531SS355TE17DIODEM D3541SS355TE17DIODEM D401MTZJ7R5CTADIODEM D403RVD1SS133TADIODEM D404RVD1SS133TADIODEM D501RVD1SS133TADIODEM D601RK306LFU1DIODEM D602RK306LFU1DIODEM D605RVD1SS133TADIODEM D611RVD1SS133TADIODEM D612RVD1SS133TADIODEM D613RVD1SS133TADIODEM D614RVD1SS133TADIODEM D617RVD1SS133TADIODEM D618MTZJ13BTADIODEM D6511N5402BM21DIODEM D6521N5402BM21DIODEM D7011N5402BM21DIODE M D7021N5402BM21DIODE M D7031N5402BM21DIODE M D7041N5402BM21DIODE M D705MTZJ6R2BTADIODEM D707MTZJ33DTADIODEM D708MTZJ16CTADIODEM D7211N5402BM21DIODE M D7221N5402BM21DIODE M D7231N5402BM21DIODE M D7241N5402BM21DIODE M D7251N5402BM21DIODE M D7261N5402BM21DIODE M D7271N5402BM21DIODE M D7281N5402BM21DIODE M D731RVD1SS133TADIODEM D732RVD1SS133TADIODEM D7411SR35400VDIODE M 32 M 33 Ref. No.Part No.Part Name & DescriptionRemarks D7421SR35400VDIODE M D7431SR35400VDIODE M D7441SR35400VDIODE M D7511SR35400VDIODE M D7521SR35400VDIODE M D7531SR35400VDIODE M D7541SR35400VDIODE M D755RVD1SS133TADIODEM D756MTZJ6R8BTADIODEM D757MTZJ16CTADIODEM D768MTZJ3R3ATADIODEM D769RVD1SS133TADIODEM D770RVD1SS133TADIODEM D771RB721Q40T77DIODE M D772RB721Q40T77DIODE M D773MTZJ8R2CTADIODEM D774RB721Q40T77DIODEM D781RB721Q40T77DIODE M D782RB721Q40T77DIODE M D9011SS291TADIODEM D902RVD1SS133TADIODEM D903MTZJ5R6BTADIODEM D904MTZJ3R9ATADIODEM D905MA167ATADIODEM D907MA167ATADIODEM D911RVD1SS133TADIODEM D912RVD1SS133TADIODEM D913RVD1SS133TADIODEM D9141SS291TADIODEM D931SLR325VCT31DIODEM D932SLR325VCT31DIODEM D933SLR325VCT31DIODEM D934SLR325VCT31DIODEM D935SLR325VCT31DIODEM D936SLR325VCT31DIODEM D937SLR325VCT31DIODEM D938SLR325MCT31DIODEM D939SLR325MCT31DIODEM D941LNG0A8CYBZDIODEM D942SLR325YCT31DIODEM D943SLR325VCT31DIODEM D944SLR325MCT31DIODEM D970RVD1SS133TADIODEM D1705UDZSTE176R2BDIODEM VARIABLE RESISTORS VR901K9AA012A0002VR INPUTM VR902RRV16B24104GVR VOLUME ENCODERM VR903K9AA012A0002VR SFCM 34 Ref. No.Part No.Part Name & DescriptionRemarks SWITCHES S301RSP2D018-ASW SLIDEM S950EVQ21405RSW POWERM S951EVQ21405RSW SPEAKER AM S954EVQ21405RSW TIMERM S955EVQ21405RSW MEMORYM S956EVQ21405RSW FM MODEM S957EVQ21405RSW BANDM S958EVQ21405RSW PRESETM S959EVQ21405RSW TUNING UPM S960EVQ21405RSW TUNING DOWNM S961EVQ21405RSW SPEAKER BM S962EVQ21405RSW HELP RDSM S963EVQ21405RSW DISP. SOUND MODEM S965EVQ21405RSW DIGITALM S966EVQ21405RSW DVD 6CHM S967EVQ21405RSW +/RIGHTM S968EVQ21405RSW -/LEFTM S969EVQ21405RSW TONE/BALANCEM S970EVQ21405RSW TAPE MONITORM S971EVQ21405RSW HELPM CONNECTORS CN352RJS1A6603T13P TAPING CONNECTORM CN353RJP3G4YACONNECTORM CN354RJS1A6606T16P TAPING CONNECTORM CN401RJS1A6607T17P TAPING CONNECTORM CN402RJS1A6606T16P TAPING CONNECTORM CN601RJS4T6ZA4P CONNECTORM CN702RJS1A6603T13P TAPING CONNECTORM CN751SJS305-13P CONNECTORM CN901RJU003K008M1BOAD IN CONNECTORM CN902RJU003K010M110P B/B CONNECTORM CN903RJU003K008M1BOAD IN CONNECTORM CN904ARJS2A561818P FFC CONNECTORM CN904BRJS2A561818P FFC CONNECTORM CN907RJU100W044P CONNECTORM CN1000ARJS2A561818P FFC CONNECTORM CN1000BRJS2A561818P FFC CONNECTORM CP101RJT100W1111P CONNECTORM CP403RJP6G4YACONNECTORM CP771SJT3213CONNECTOR (FAN)M CP901RJT003K008M18P CONNECTORM