Sony-TAE1-pre-sm 维修电路原理图.pdf
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1、1TA-E1SPECIFICATIONSSTEREO PRE AMPLIFIERSERVICE MANUALUS ModelCanadian ModelAEP ModelUK ModelE ModelAustralian ModelMICROFILMRadioFans.CN 收音机爱 好者资料库2TABLE OF CONTENTS1. GENERAL.32. ELECTRICAL ADJUSTMENT.53. DIAGRAMS3-1. Circuit Boards Location. 53-2. Schematic Diagram Main Section (1/3) .63-3. Schem
2、atic Diagram Main Section (2/3) .73-4. Schematic Diagram Main Section (3/3) .83-5. Printed Wiring Board Main Section .93-6. Schematic Diagram Power Section . 103-7. Printed Wiring Board Power Section . 114. EXPLODED VIEWS4-1. Top Plate and Back Panel Section. 124-2. Front Panel Section . 124-3. Bott
3、om Plate Section . 135. ELECTRICAL PARTS LIST .14SAFETY CHECK-OUTAfter correcting the original service problem, perform the follow-ing safety checks before releasing the set to the customer:Check the antenna terminals, metal trim, “metallized” knobs, screws,and all other exposed metal parts for AC l
4、eakage. Check leakage asdescribed below.LEAKAGEThe AC leakage from any exposed metal part to earth Ground andfrom all exposed metal parts to any exposed metal part having areturn to chassis, must not exceed 0.5 mA (500 microampers). Leak-age current can be measured by any one of three methods.1. A c
5、ommercial leakage tester, such as the Simpson 229 or RCAWT-540A. Follow the manufacturers instructions to use theseinstruments.2. A battery-operated AC milliammeter. The Data Precision 245digital multimeter is suitable for this job.3. Measuring the voltage drop across a resistor by means of a VOMor
6、battery-operated AC voltmeter. The “limit” indication is 0.75V, so analog meters must have an accurate low-voltage scale.The Simpson 250 and Sanwa SH-63Trd are examples of a pas-sive VOM that is suitable. Nearly all battery operated digitalmultimeters that have a 2V AC range are suitable. (See Fig.
7、A)Fig. A. Using an AC voltmeter to check AC leakage.0.15FTo Exposed MetalParts on Set1.5kACvoltmeter(0.75V)Earth GroundSAFETY-RELATED COMPONENT WARNING !COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINEWITH MARK ! ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THE
8、SE COMPONENTS WITH SONY PARTSWHOSE PART NUMBERS APPEAR AS SHOWN IN THISMANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SURLES DIAGRAMMES SCHMATIQUES ET LA LISTE DESPICES SONT CRITIQUES POUR LA SCURIT DEFONCTIONNEMENT
9、. NE REMPLACER CES COMPOSANTSQUE PAR DES PICES SONY DONT LES NUMROSSONT DONNS DANS CE MANUEL OU DANS LESSUPPLMENTS PUBLIS PAR SONY.MODEL IDENTIFICATION BACK PANEL PARTS No.MODEL4-214-526-1US , CND4-214-526-2AEP, UK, E, AUSParts No.AbbreviationCND : Canadian modelAUS : Australian modelRadioFans.CN 收音
10、机爱 好者资料库3SECTION 1GENERALThis section is extracted frominstruction manual.4TA-E155SECTION 3DIAGRAMS3-1. CIRCUIT BOARDS LOCATIONSECTION 2ELECTRICAL ADJUSTMENTSIDLING ADJUSTMENT AND OFFSET VOLTAGECHECK Perform this adjustment after replacing CP103 and CP104. Perform this adjustment more than 10 minute
11、s after supplyingthe power.Connection:BALANCE OUTPUT LEVEL ADJUSTMENT Perform this adjustment when replacing CP102. Perform this adjustment after the idling adjustmentConnection:MAIN boardSW L boardAC J boardLED A boardLED B boardSW P boardPS boardVOL boardTHIS NOTE IS COMMON FOR PRINTED WIRINGBOARD
12、S AND SCHEMATIC DIAGRAMS.(In addition to this, the necessary note is printedin each block.)For schematic diagrams.Note: All capacitors are in F unless otherwise noted. pF: F50 WV or less are not indicated except for electrolyticsand tantalums. All resistors are in and 1/4 W or less unless otherwises
13、pecified.%: indicates tolerance. 2 : nonflammable resistor. 5 : fusible resistor. C : panel designation. S : B+ Line. T : B Line. H : adjustment for repair. Voltages and waveforms are dc with respect to ground inplayback mode. Voltages are taken with a VOM (Input impedance 10 M).Voltage variations m
14、ay be noted due to normal produc-tion tolerances. Signal path.F: TUNERNote:The components identi-fied by mark ! or dottedline with mark ! are criti-cal for safety.Replace only with partnumber specified.Note:Les composants identifis parune marque ! sont critiquespour la scurit.Ne les remplacer que pa
15、r unepice portant le numrospcifi.For printed wiring boards.Note: X : parts extracted from the component side.: Through hole. b : Pattern from the side which enables seeing.(The other layers patterns are not indicated.)Caution:Pattern face side: Parts on the pattern face side seen from the(Side B)pat
16、tern face are indicated.Parts face side:Parts on the parts face side seen from the(Side A)parts face are indicated.Digital voltmeterTP501 (L-CH), TP502 (R-CH)TP503 (L-CH), TP504 (R-CH)MAIN boardProcedure:1. Connect the digital voltmeter as shown above.2. Adjust RV501 (L-CH) and RV502 (R-CH) of the M
17、AIN boardso that the digital voltmeter reads 50 mV 5 mV. (Idling adjust-ment)3. Measure the voltage of both terminals of R221 (L-CH) and R222(R-CH) of the MAIN board, and check that the voltage is within2 mV.(Offset voltage check)MeasuringAdjustingAdjustingPointPointValueL-CHTP501 to TP503RV50150 mV
18、 5 mVR-CHTP502 to TP504RV50250 mV 5 mVMeasuring PointSpecified ValueL-CHBoth terminals of R221Within 2 mVR-CHBoth terminals of R222Within 2 mVProcedure:1. Connect as shown above.2. Rotate the INPUT SELECTOR knob, and set the input sourceto LINE 1 .3. Set the input level so that the oscilloscope wave
19、form level be-comes approx 3 V.4. Adjust RV401 (L-CH) and RV402 (R-CH) so that the two wave-form levels on the oscilloscope become equal and their phasesare reversed.BALANCED-OUT 2 3 pinLINE1 inputSetAF OSCattenuatorOscilloscopeAdjusting Value:Adjusting PointAdjusting ValueL-CHPin 2 (CH1) andRV401Pi
20、n 3 (CH2) of CN203R-CHPin 2 (CH1) andRV401Pin 3 (CH2) of CN203Phases of waveforms ofPins 2 and 3 should be reversedWaveform ofPin 2 (CH1)Waveform ofPin 3 (CH2)Adjustment Location:MAIN board (Component Side)OFFSETVOLTAGER222R221RV401BALANCE OUTLEVEL L CHRV402BALANCE OUTLEVEL R CHRV501IDLEL CHTP503RV5
21、02IDLER CHTP501 TP504 TP502TA-E1663-2. SCHEMATIC DIAGRAM MAIN SECTION (1/3) Refer to page 9 for Printed Wiring Board.(Page 7)(Page 7)(Page 7)(Page 7)(Page 8)(Page 10)TA-E1773-3. SCHEMATIC DIAGRAM MAIN SECTION (2/3) Refer to page 9 for Printed Wiring Board.(Page 6)(Page 6)(Page 6)(Page 8)(Page 6)(Pag
22、e 8)(Page 10)(Page 10)(Page 10)TA-E1883-4. SCHEMATIC DIAGRAM MAIN SECTION (3/3) (Page 6) (Page 7)(Page 7)TA-E1993-5. PRINTED WIRING BOARD MAIN SECTION Refer to page 5 for Circuit Boards Location.Ref. NoLocationD201B-1D202B-1D203B-2D204B-3D205B-4D206B-5D207B-6D208B-8D209B-8D210B-7D211B-10D212B-10D401
23、I-2D402I-2D403I-9D404I-9D405I-8D406I-8D407I-7D408I-7D501I-6D502I-5D503I-4D504I-4D505I-3D506I-4Q201B-1Q202B-2Q203B-3Q204B-3Q205B-5Q206B-6Q207B-6Q208B-8Q209B-7Q210B-7Q211B-7Q212B-10Q214B-1Q215B-2Q216B-3Q217B-4Q218B-5Q219B-6Q220B-7Q221B-8Q222B-7Q223B-7Q224B-10Q225B-11Q401I-2Q402I-2Q403I-2Q404I-2Q405I-3
24、Q406I-2Q407I-10Q408I-9Q409I-9Q410I-9Q411I-10Q412I-9Q501F-5Q502F-3Q503I-8Q504I-7Q505I-8Q506I-7Q507I-8Q508I-7Q509I-6Q510I-5Q511I-6Q512I-5Q513I-6Q514I-5Q515I-4Q516I-3Q517I-4Q518I-3Q519I-4Q520I-4 SemiconductorLocation(Page 11)(Page 11)(Page 11)(Page 11)VOLBOARDSW LBOARDSW LBOARDPSBOARDTA-E110103-6. SCHE
25、MATIC DIAGRAM POWER SECTION (Page 6)(Page 7)(Page 7)(Page 7)TA-E111113-7. PRINTED WIRING BOARD POWER SECTION Refer to page 5 for Circuit Boards Location.(Page 9)MAIN BOARD(Page 9)(Page 9)MAINBOARDMAINBOARD(Page 9)MAINBOARDF H 2F H 1Ref. NoLocationD701C-1D702C-1D703B-4D704B-3D705B-3D706B-2D707C-5D708
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