Technics-SADA10-avr-sch 维修电路原理图.pdf

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1、file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p01.htmService ManualTOP NEXT Order No. MD0006112C1A2AV Control Stereo Receiver SA-DA10Color(K) . Black Type(N) . Gold TypePP . U.S.A. and CanadaFM Tuner Section Frequency range87.9-107.9 MHzSensitivity11.2 dBf (2V, I

2、HF58)50 dB quieting sensitivityMONO18.3 dBf (4.5V, IHF58)STEREO38.3 dBf (45V, IHF58)Total harmonic distortionMONO0.2%STEREO0.3%S/Nfile:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p01.htm (1 of 3) 21/01/2007 13:46:55RadioFans.CN 收音机爱 好者资料库file:/C|/Documents%20and%20S

3、ettings/Administrateur/Mes%20documents/service/SA-DA10/p01.htmMONO73 dBSTEREO67 dBFrequency response20 Hz-15 kHz,+1 dB, -2 dBAlternate channel selectivity65 dBCapture ratio1.5 dBImage rejection at 98 MHz40 dBSpurious response rejection at 98 MHz75 dBAM suppression50 dBStereo separation1 kHz40 dB10 k

4、Hz30 dBAntenna terminal75 (unbalanced)AM Tuner Section Frequency range530-1710 kHzSensitivity20V, 330V/mSelectivity55 dBIF rejection (at 1000 kHz)50 dBVideo Section Output voltage at 1 V input (unbalanced)10.1 Vp-pMaximum input voltage1.5 Vp-pInput/output impedance75Amplifier Section Rated minimum s

5、ine wave RMS power output20 Hz-20 kHz both channels driven0.09% total harmonic distortion100 W per channel (6)1 kHz continuous power output both channels driven0.05% total harmonic distortion105 W per channel (6)Total harmonic distortionrated power at 20 Hz-20 kHz0.09% (6)half power at 1 kHz0.03% (6

6、)Power bandwidthboth channels driven, -3 dB10 Hz-70 kHz (6, 0.9%)Power output at the DVD 6CH operation20 Hz-20 kHz (each channels driven)0.09% total harmonic distortionFront2 x 100 W (6)Center100 W (6)Surround2 x 100 W (6)Low frequency damping factor30 (6)Load impedanceFrontA or B4 - 8A and B8BI-WIR

7、E6 - 8Center6 - 8Surround6 - 8file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p01.htm (2 of 3) 21/01/2007 13:46:55RadioFans.CN 收音机爱 好者资料库file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p01.htmFrequency responsePHONORIAA standard c

8、urve0.8 dBCD, DVD, TV, VCR1, VCR2, VCR3, TAPE10 Hz-100 kHz,3 dBInput sensitivityPHONO0.4 mV (3 mV, IHF66)CD, DVD, TV, VCR1, VCR2, VCR3, TAPE27 mV (200 mV, IHF66)S/N (IHF A) (VGCA ON)PHONO80 dB (80 dB, IHF66)CD, DVD, TV, VCR1, VCR2, VCR3, TAPE113 dB (IHF A, Rated Power, S=2 V)90 dB (100 dB, IHF66)Inp

9、ut impedancePHONO47 kCD, DVD, TV, VCR1, VCR2, VCR3,TAPE22 kTone controlsBASS50 Hz,+10 to -10 dBTREBLE20 kHz,+10 to -10 dBSubwoofer frequency response (-6 dB)7 - 200 HzDigital input (OPTICAL)CD, DVD, TVGeneral Power supplyAC 120 V, 60 HzPower consumption310 WDimensions (W x H x D)430 x 180 x 370 mm(1

10、6-15/16” x 7-3/32” x 14-9/16”)Mass12.7 kg (28.0 lb.)Power consumption in standby mode:1 WDIN POWER (1 kHz T.H.D. 1%) 2 X 100W (6)Notes: 1. Specifications are subject to change without notice./Mass and dimensions are approximate.2. Total harmonic distortion is measured by the digital spectrum analyze

11、r.* Manufactured under license from Dolby Laboratories.“Dolby”,“Pro Logic” and the double-D simbol are trademarks of Dolby Laboratories.* Manufactured under license from Digital Theater System.“DTS” and“DTS Digital Surround” are trademarks of Digital Theater Syatem. 2000 Matsushita Electronics (S) P

12、te. Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. TOP NEXT file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p01.htm (3 of 3) 21/01/2007 13:46:55file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA1

13、0/p02.htmTable Of ContentsCOVER 1 Safety Precaution 2 Before Repair and Adjustment 3 Protection Circuitry 4 Accessories 5 Front Panel Controls 5.1 Front Panel 5.2 Remote Control 6 Operation Checks and Main Component Replacement Procedures 6.1 Checking Procedure for each major P.C.B. 6.2 Main Compone

14、nt Replacement Procedures 6.2.1 Replacement of the Power IC and Regulator Transistor 6.2.2 Installation of the bottom cover after replacement 7 Type Illustrations of ICs, Transistors& Diodes 8 Terminal Functions of ICs 9 Block Diagram 10 Schematic Diagram 11 Printed Circuit Board file:/C|/Documents%

15、20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p02.htm (1 of 2) 21/01/2007 13:47:30file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p02.htm12 Wiring Connection Diagram 13 Parts Location and Replacement Parts List 13.1 Cabinet 13.1.1 Cabinet Parts Lo

16、cation 13.1.2 Cabinet Parts List 13.2 Electrical Parts List 13.3 Packing Materials& Accessories Parts List 13.4 Packaging file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p02.htm (2 of 2) 21/01/2007 13:47:30file:/C|/Documents%20and%20Settings/Administrateur/Mes%20do

17、cuments/service/SA-DA10/p03.htm1 Safety PrecautionTOP PREVIOUS NEXT (This“Safety Precaution” is applied only in U.S.A.)1. Before servicing, unplug the power cord to prevent an electric shock.2. When replacing parts, use only manufacturers recommended components for safety.3. Check the condition of t

18、he power cord. Replace if wear or damage is evident.4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.5. Before returning the serviced equipment to the customer, be sure to make the following insulation resistance test to prevent the customer

19、 from being exposed to a shock hazard.Insulation Resistance Test 1. Unplug the power cord and short the two prongs of the plug with a jumper wire.2. Turn on the power switch.3. Measure the resistance value with ohmmeter between the jumper AC plug and each exposed metal cabinet part, such as screw he

20、ads, antenna, control shafts, handle brackets, etc. Equipment with antenna terminals should read between 3M and 5.2M toall exposed parts*. (Fig 1) Equipment without antenna terminals should read approximately infinity to all exposed parts. (Fig 2)*Note: Some exposed parts may be isolated from the ch

21、assis by design. These will read infinity.4. If the measurement is outside the specified limits, there is a possibility of a shock hazard. The equipment should be repaired and rechecked before it is returned to the customer.file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/S

22、A-DA10/p03.htm (1 of 2) 21/01/2007 13:47:05file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p03.htmTOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p03.htm (2 of 2) 21/01/2007 13:47:05file:/C|/Documents%20and%20Set

23、tings/Administrateur/Mes%20documents/service/SA-DA10/p04.htm2 Before Repair and AdjustmentTOP PREVIOUS NEXT 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

24、solid state devices.After repairs are completed, restore power gradually using a variac, to avoid over current.Current consumption at AC 120 V, 60 Hz in NO SIGNAL mode should be 7501050 mA.TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p04.htm 21

25、/01/2007 13:47:05file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p05.htm3 Protection CircuitryTOP PREVIOUS NEXT 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

26、 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 ofthe amplifier are used.If this occurs, follow the procedure o

27、utlines 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.TOP PREVIOUS NEXT file:/C|/Documen

28、ts%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p05.htm 21/01/2007 13:47:06file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p06.htm4 AccessoriesTOP PREVIOUS NEXT AC power supply cord. 1 pc. AM Loop Antenna Set/. 1 set. FM Indoor Antenna. 1 pc. fil

29、e:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p06.htm (1 of 2) 21/01/2007 13:47:06file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p06.htmRemote Control/Transmitter. 1 pc. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Admini

30、strateur/Mes%20documents/service/SA-DA10/p06.htm (2 of 2) 21/01/2007 13:47:06file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p07.htm5 Front Panel ControlsTOP PREVIOUS NEXT 5.1 Front Panel 5.2 Remote Control TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Admi

31、nistrateur/Mes%20documents/service/SA-DA10/p07.htm 21/01/2007 13:47:06file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p08.htm5.1 Front PanelTOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p08.htm (1 of 2) 21/01/2

32、007 13:47:07file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p08.htmTOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p08.htm (2 of 2) 21/01/2007 13:47:07file:/C|/Documents%20and%20Settings/Administrateur/Mes%20docu

33、ments/service/SA-DA10/p09.htm5.2 Remote ControlTOP PREVIOUS NEXT TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p09.htm 21/01/2007 13:47:07file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p10.htm6 Operation Check

34、s and Main Component Replacement ProceduresTOP PREVIOUS NEXT “ATTENTION SERVICER” Some chassis components maybe have sharp edges. Be careful when diassembling and servicing.1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main comp

35、onents.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 Checking Procedure for each major P.C.B. . P.g. 8

36、12Main Component Replacement Procedures 1. Replacement of the Power IC and Regulator Transistor. P.g. 13142. Installation of the bottom cover after replacement. P.g. 156.1 Checking Procedure for each major P.C.B. 6.2 Main Component Replacement Procedures 6.2.1 Replacement of the Power IC and Regulat

37、or Transistor 6.2.2 Installation of the bottom cover after replacement file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p10.htm (1 of 2) 21/01/2007 13:47:07file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p10.htmTOP PREVIOUS NEXT fi

38、le:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p10.htm (2 of 2) 21/01/2007 13:47:07file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htm6.1 Checking Procedure for each major P.C.B.TOP PREVIOUS NEXT Step 1& Step 2 Unscrew and remo

39、ve top cabinet as shown.file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htm (1 of 17) 21/01/2007 13:47:10file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 3 Remove all the screws.file:/C|/Documents%20and%20Settings/A

40、dministrateur/Mes%20documents/service/SA-DA10/p11.htm (2 of 17) 21/01/2007 13:47:10file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 4 Remove all the screws.Step 5 Remove the two support bars and VGCA cover.file:/C|/Documents%20and%20Settings/Administrate

41、ur/Mes%20documents/service/SA-DA10/p11.htm (3 of 17) 21/01/2007 13:47:10file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 6 Release the connectors CP451 and CP506.Step 7 Remove the screw.file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/s

42、ervice/SA-DA10/p11.htm (4 of 17) 21/01/2007 13:47:10file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 8 Release the connectors CN351 and CP353.file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htm (5 of 17) 21/01/2007

43、13:47:10file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 9 Release the flat cable from CN901B./Take note of CN504, CN505 and CN902.file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htm (6 of 17) 21/01/2007 13:47:10fil

44、e:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 10 Remove all the screws and support bar (A).Step 11 Unscrew the nut from AL Panel and remove the Volume Knob.file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htm (7 of 1

45、7) 21/01/2007 13:47:10file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 12 Remove all the screws and pull the Volume P.C.B. up as shown./Take note of CP501 and CP502.file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.ht

46、m (8 of 17) 21/01/2007 13:47:10file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 13 Lift up Panel P.C.B. and remove all connectors.file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htm (9 of 17) 21/01/2007 13:47:10file

47、:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 14 Remove all the screws.Step 15 Remove Selector Knobs, Tone Knob, Selector Ring, Light Guide and unscrew the nut./Take note of CP503.file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/

48、SA-DA10/p11.htm (10 of 17) 21/01/2007 13:47:10file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 16 Remove all the screws.file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htm (11 of 17) 21/01/2007 13:47:10file:/C|/Docu

49、ments%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 17 Release the AC In/Out P.C.B. catch.Step 18 Release the CP771 and pull out the rear panel in the direction shown.Step 19 Remove the screw and Shield Plate.file:/C|/Documents%20and%20Settings/Administrateur/Mes%20docu

50、ments/service/SA-DA10/p11.htm (12 of 17) 21/01/2007 13:47:10file:/C|/Documents%20and%20Settings/Administrateur/Mes%20documents/service/SA-DA10/p11.htmStep 20 Release the CN702 and pull out the Surround P.C.B. in the direction shown./Take note of CN1201 to CN1204.file:/C|/Documents%20and%20Settings/A