Tandberg-3002-pre-sch 维修电路原理图.pdf

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1、.7 TANDBERG)+)Control Amplifier3002Circuit DiagraTs andAlignment JnstructionsTANDBERG- The European AlternariveRadioFans.CN 收音机爱 好者资料库DismantlingO Top cover, rear (1).O Top cover, front (2).O Rear panel (3).Figure 1 Dismantling the rear and top coaersO Front panel (4). Remove rotary knobs.O Bottom c

2、over (5).Figure 2 Dismantling the front and bottom couersRadioFans.CN 收音机爱 好者资料库lIII!-connicronBOARD AI-7.1-iil-,af -rzoqt-II J2orI0llPIL - C HAUXL C Non7acul 7,ol to -vI145 mV2145 mV0.16 mVI16 mVJ2 rnYcr0r r PFrs T. ;- - f l 9 (c o 3 | F I l oLf ll13:oTUNERr+-c&G2:PHONOlfii:reF145 mVTAPE I4: Ir -1c

3、liroarRF 1- o lt 6 -t t d F 5 t x tlrl + lEltrlc30tl?t?t - l - t IlTllnlla llallca33l Ta aac 3 0 2?.-r- J-ll a lNl13l cioa l3lIl 3.1 l-. ltrlT lg,sTa ot8Jl- tH 6HrL?J J- qlIa a ac308c 3 l 7 c3 0 9? ? l- ? ? l- ?tr*r dlF.drdr d.Tfidrllsj EJ.F lglg lg .-lh tsjElr lqgii IvBII? ?i.-lFrr rilFrrIH HS,HH H

4、qHHt l - t t l t lr I T tt I T rlc 3 ? 3 C3 l 5I TT1lT TI-I1II lTlFll lTlFllI l.il ?| 1.,.1ry|l l tl I t lr ac3r8 c 3ro? ? J- ?r ? l- ?fr ATAA *=S*I:I bl ii: ttll:l El :iil Ellslr rvEIl lvEllI t$rF?t ?s-|F_?lHt tit trHtHt ril6,31*tfit19 19 t Ell5J 19 r l5Jl5JI I E | | | - | |t t t l t - t la a a aa

5、a a aac 3 2 ( C3 l 6ItoltolllTtaIa ll lt1IIl l1llrll l l I IIr?l I II ltllTlllaTest points with input signal voltages1-2-5-6145 mV32mV40.16 mVtnoctr(g*ro(Etr.9o:36.5o6o7- 89-1011-1213-1415-1617-1819 -2021 -2229145 mV (1)*145 mV (2)*145 mV (5)*145 mV (6)1.0 v16 mV145 mV1.0 v16 mV145 mV1.0I coNEcToR -

6、BoARD-;r -l| ., pror I201rIIJ1145 mVAUXTUNER145 mV2mY/ r I cRlRroGLOADclol r pF oHMsrop T ,r - f l ? 5c E 3 | t s l l %lTlll3ltlPHONOI IMM 1I|_cror | ;! 20.16 mVq145 mVo145 mVSYL - C APHONOfrcElEl rg ?r? r? ? r?rPht =r lildt dlddt*rr*rrl*rr 3g rtsJEt Frl+l l+thlt+lqlEt,1 T l tli ll l ittrra A a A A

7、A- l l r y l l ? - I - l 1 6 l - ? r l , - l o t t o t g tlld r 6rl:il3 lg:t :t lg:t:l:lll BJItiTiTTITTTTdr l -i fll+ Tn nltnl I 11ElFl: iH$tHIEtHHFlElEtH J,1 ?& Hq ryt F -rr-r-r-r -r MoNo I LouoNEssI 1 r I t I r f | | | t I i l-l-f-1 rltli ltlilrtl t=dlH, frisE H:t st Bst:tsi:i :l:lh ri?r lFr I I r

8、 r Tit tt Fl.ll: :li:rJ tTtr-n Iflr-*-*l: tlt aI Lou0NessEII;-.t+llr rlJ tJ rlt:,*. r-racroR: iTTUNERMCM MAUXtId-l3t Ildl It l. la lI It lI II Ia lTtrllelI?lIItl lr-1 rrFIIXI ?|aI FEI ITT I. I-mrcfF-ctaz lTl f-:- t*i-l r-:-ra-|- . I a l lrl a a al lel aass I f.1Ji rneere I r-iJlI f .- | t|l I r .Jl

9、l:r iEfi ru -L!llr tl:t ffi U i_AC voltagesThe table below gives AC voltages for test points inFisures 7 and 8.Test conditionsSignal:Volume controls:Tone controls:Balance control:1000 Hz.Max. position.Mid. position.Mid. position.Test points with AC voltages are also given in thediagrams on pages 4 a

10、nd 5. i a. l h l tI Iq 9 b. 1 .1 I.l d La c al b Ft la q P. f h lt ll 9 r. f Il r.ld Ita c ato Fl ta o )a aa aa al aa aa aa t.1.1rt lll .ll.a t21 2223a aa aTest points with input signal voltages1-2-5-6145 mV32mY40.16 mVq,(l)ct)(ggoctlu,E0.=ooo2324-252627 -2830313233145 mV1.0 v145 mV1.0 v145 mV12 V u

11、nloaded145 mV12 V unloadedt a a a a a a aJ502il 1TI tltttlll I I 33.-g* y-rn.l? osrzl ? tAHAAdJ Jtsl 19 .cIE H | |Il Y*l lElEllrITlLI cloz*tF-.*Jl-c508I.tPl li*rl a a t f 6 tVroroti* Hlx_,/.l I.lF .F. ic505 cs06ro 3inr.-g-EI ET TIVIITt I Ft tH tfilfi tHf lrsr tg|I Fr9 tsr l r t* I i IJ50aIIli?Tc501A

12、A AA IAAIryAA AATT Tf 6ITTJgTTTTIgITI c503II1111a a a a a a a a1llrI 3l :lr o - L o IT ?stE? ? T ?xrs?I 0113 A: I il I o,. Ag l; I16 |;l+t la l3|*I r.o111 T | | | .orrza I IIffinln. r8 r1,.InVr AttVir;1 616r oroz Ht 6El lEl f, Flljl Ellil .A, El 27 ljlY rr .u r .FF tS F.i lt.lrl lll li.J0405 c113 q1

13、g6 C4t1? ? , f . t ? ? ? ? J . ? r ?.A lcl AIA AA ffi AIIEiHl s, HHIhI HFI i FlFlElll T rJl lt T ltrr I ? anowH- loliJ I .bFigure 8 Headphones amplifier boardon,)n.)n.ALL BOARDS ARE SEEN FROM THE SOLDER SIDETEST POINTS FOR AC-VOLTAGES IN COLOUR.=l l* Fllol l?llBRowNl bdl lBLAcKl | | lwHrTE I ILt|tt

14、Ll p_;-Hr FrloREY GREEN YELLOWoooFigure 9 AC outlet boardre also given in theoREOo6REYo6REENc R 6 t 0rnSl!_r -ap ano?r-l-gt:!t Q r o - - I C - r T - l r I O Atv Y?; tta= , 9. . t| _ - H | -H H6:3:t H tt .-fRCaZl- -m:4-r.-F.*-s-qeeF63 *-o o o o Y E L L O W22 N 2 e Oo F u? ? ? tiitLtitII T T IITT q+ T

15、Ta a a aI* +s IsT= . * T;. gE .l-6-n ozz l-rn A r 2.-9-Fr?roffi=ffiH-Tr7-*-mrsF;-r-l f-r c orr*-*-F *-1T62E-F-91-m-*-T.ea7l-Q| -JsEioo-tne7i -os-Lo *_-1a rgoolffi.,*-9f A -r+jE6o?,+. s !JfA ?,(a- f 5 . i t t g - Y o t -. lg l:i-*-TET8-4 _o _o ! -_-T ro rT -; - ! corelf+H T95f H *-msoeF- *_lnsuF- ,_.

16、-.-O ga-qs sg.+oF.,- . c R 6 0 ?|-H+-+ .,+r|# l_-.r. &Et$3 T 5I+ 32.0 V DCFigure 10 Power supply boardAdjusting the supply power (t 32 V)O Adjust R611 for + 32.0 V at pin 7 , J503(Figure 10).I Adjust R612 for - 32.0 V at pin 4, J503(Figure 10).- 32.0 V DCa Q a a f a a aTechnical Data according to IH

17、F-A-2O2,1978Tandberg ControlTechnical dataPower req uirements:Power consumption:AC-outlets:Dimensions: WidthDepthHeightWeightFrequency responsePhono MM:Phono MC:Tape 1, Tape 2:Tuner, AUX:Maximum Voltage OutputPreamp output:Preamp output:Tape 1, Tape 2:Headphone output:Phono MM:Phono MC:Tape 1,Tape2.

18、Tuner, AUX:Phono MM:Phono MC:Tape 1, Iape 2:Tuner. AUX:A-weighted Signal-to-Noise RatioPhono MM:Phono MC:Tape 1, Tape 2:Tuner, AUX:Amplifier TCA 30021 151230 V ! 100/o, 50/60 Hz30 W max.Unswitched 1Switched 311 118 (43.5 cm)13 % (35.0 cml3 % ( 8.3 cm)12.5 lbs (5,7 kg)20 - 20,ooo Hz + 0.2 dB20 - 20,0

19、0O Hz + 0.2 oB20 - 20,000 Hz + Ol 0.1 dB20 - 20,000 Hz + 0/- 0.1 dB5 V at THD = 0.004%10 V at clipping level7.5 V20 V unloaded( o.ooaz( o.oo+z( o.ooaz( o.ooaz1 m V80 uV70 mV70 mVSecondary DisclosuresOutput lmpedancePreamp:Headphones:Headphones (min. load) :Tone-control ResponseBass:T reb le:Loud nes

20、s:F ilterSub Sonic:Crosstalk (100 Hz - 1O kHz)Phono MM:Phono MC:Tape 1, Iape 2:Tuner, AUX:Separation (100 Hz - 1O kHzlPhono MM:Phono MC:Tape 1, Tape 2.Tuner, AUX:Transient intermodu lationAll inputs:Other Technical DataFrequency ResponseTape I, Tape 2:Tuner, AUX:Phase shift l2O Hz - 2O,00O HzlTape 1

21、, Tape 2:Tuner, AUX:560 ohms + 10 uF in series470 ohms4 ohms+ l 0 d B a t 5 0 H z+ tO oB at 10,000 HzM a x . 7 d B a t 5 0 H zMax. 3 dB at 10,000 Hz- 12 dB/oct., - 3 dB at 15 HzTo any of the other sources ) 70 dBTo any of the other sources ) 70 dBTo any of the other sort.es ) 70 dBTo any of the othe

22、r sources ) 70 dB)ssoe)ssoe)seae)seoalmmeasurab le5 - 130,000 Hz, + Q/- 1.5 695 - 130,000 Hz, + 0/- 1.5 dB+ g .50 l-2.50+ 9.50 l-2.50Total Harmonic Distortion l2O Hz - 20.0OO Hz)Input Sensitivity - Ref . O.5 V output voltageMaximum Input Voltage (1 kHz)Phono MM: 290 mVPhono MC: 22 mYT a p e 1 , f a

23、p e 2 : 1 1 VT u n e r . A U X : 1 1 Vlnput lmpedancePhono MM:Phono MC:Tape 1, Iape 2:Tuner, AUX:80 dB74 dBv5 otJ95 dB33 I 47 I 100 kohms1 kohm47 kohms47 kohmsI Specifications are subject to change for furtherimprovement without notice.Optional Extras- Black acrylic side walls for freestanding units.- Attachrnent sets for installation in 19 inch racks.,-TANDBERGThe European AlternativeTandberg A/S, Post Office Box 53, 2007 Kjeller, Norway,1737 - 8 - 80 Part No. 714138Drihdd i Nla,-., hv D6l- /c