tandberg tca-3002-circ-alignm 维修电路原理图.PDF

.7 TANDBERG ) + ) Control Amplifier3002 Circuit DiagraTs and Alignment Jnstructions TANDBERG- The European Alternarive Dismantling O Top cover, rear (1). O Top cover, front (2). O Rear panel (3). Figure 1 Dismantling the rear and top coaers O Front panel (4). Remove rotary knobs. O Bottom cover (5). Figure 2 Dismantling the front and bottom couers l I I I !-connicronBOARD AI -7.1-iil-,af -rzoq t- I I J2or I 0llPI L - C H AUX L C N on7 acul 7 ,ol to -v I 145 mV 2 145 mV 0.16 mV I 16 mV J 2 rnY cr0r r PF rs T. ;< - - f l 9 ( c o 3 | F I l o Lf ll13 :o TUNER r+- cr -l | ., pror I201 r I IJ 1 145 mV AUX TUNER145 mV 2mY / r I cRlRroG LOAD clol r pF oHM srop T , r - f l ? 5 c E 3 | t s l l % lTlll3l tl PHONOI I MM 1I |_ cror | ;! 2 0.16 mV q 145 mV o 145 mV S Y L - C A PHONO frc ElEl rg ?r? r? ? r?r Pht =r lildt dlddt*rr*rrl* rr 3g rtsJEt Frl+l l+thlt+lqlEt ,1 T l tli ll l ittrr a A a A A A - l l r y l l ? - I - l 1 6 l - ? r l , - l o t t o t g t lld r 6rl:il3 lg:t :t lg:t:l:lll B JItiTiTTITTTTd r l -i fll + Tn nltnl I 11ElFl : iH$tHIEtHHFlElEtH J,1 ?-. t+llr rl J tJ rlt: ,*. r -r a croR : i T TUNER MC M M AUX tI d- l3t I ldl I t l . l a l I I t l I I I I a l T trl lel I ? l I It l l r-1 rr FIIXI ? |aI FEI I TT 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-iJl I f .- | t|l I r .Jl l: r iEfi ru -L!llr tl:t ffi U i_ AC voltages The table below gives AC voltages for test points in Fisures 7 and 8. Test conditions Signal: Volume controls: Tone controls: Balance control: 1000 Hz. Max. position. Mid. position. Mid. position. Test points with AC voltages are also given in the diagrams on pages 4 and 5. . i a . l h l t I I q 9 b . 1 . 1 I .l d L a c a l b F t l a q P . f h l t l l 9 r . f I l r .ld It a c a to F l t a o ) a a a a a a l a a a a a a t .1. 1r t l ll . ll. a t 21 22 23 a a a a Test points with input signal voltages 1-2-5-6 145 mV 3 2mY 4 0.16 mV q, (l) ct) (g g o ctl u, E 0 .= o o o 23 24-25 26 27 -28 30 31 32 33 145 mV 1.0 v 145 mV 1.0 v 145 mV 12 V unloaded 145 mV 12 V unloaded t a a a a a a a J502 il 1T I tl tttl ll I I 33 .-g* y-rn. l? osrzl ? t AHAAdJ J tsl 19 .cIE H | | Il Y*l lElEl lr IT lL I cloz *tF- .*Jl- c508 I .t Pl li*r l a a t f 6 t Vroroti* H lx_,/.l I .lF .F. i c505 cs06 ro 3i nr.-g- EI ET TIVIIT t I Ft tH tfilfi tH f lrsr tg|I Fr9 ts r l r t* I i I J50a IIli ? T c501AA AA IAAIryAA AA TT Tf 6ITTJgTTTT Ig IT I c503 I I1111 a a a a a a a a 1l lr I 3l :l r o - L o I T ?stE? ? T ?xrs? I 0113 A: I il I o,. Ag l; I 16 |;l+t la l3|* I r.o111 T | | | .orrza I I Iffinln. r8 r1,. InVr AttVi r;1 616r oroz Ht 6El lEl f, Fl ljl Ellil .A, El 27 ljl Y rr .u r .FF tS F .i lt.lrl lll li.J 0405 c113 q1g6 C4t1 ? ? , f . t ? ? ? ? J . ? r ? .A lcl AIA AA ffi AII EiHl s, HHIhI HFI i FlFlEl ll T rJl lt T ltr r I ? anowH - lo liJ I .b Figure 8 Headphones amplifier board on, )n. )n. ALL BOARDS ARE SEEN FROM THE SOLDER SIDE TEST POINTS FOR AC-VOLTAGES IN COLOUR. =l l* Fllol l?ll BRowNl bdl lBLAcKl | | lwHrTE I I Lt|tt Ll p_ ;-H r Frl oREY GREEN YELLOW ooo Figure 9 AC outlet board re also given in the o REO o 6REY o 6REEN c R 6 t 0 rnSl!_r - ap ano ?r-l-gt:!< t Q r o - - I C - r T - l < r I O A tv Y?; tta= , 9 . . t | _ - H | < - H H6:3:t H tt .-fRCaZl- -m:4-r .-F. *-s-qeeF 63 *- o o o o Y E L L O W 22 N 2 e O o F u ? ? ? t iitLtit II T T II TT q<+ TT a a a a I* +s Is T= . * T; . gE . l-6 -n ozz l-r n A r 2 .-9-F r?ro ffi=ffiH -Tr7- *-mrsF ;-r-l f-r c orr *-* -F *-1T62E-F- -91-m- *-T.ea7l-Q| -JsEioo -tne7i< -os-Lo *_-1a rgool ffi.,*- 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- ,_.-. -O ga- qs sg .+ + o F .,< - . c R 6 0 ? |-H +-+ .,+ r|# l_-< .r. &E t$3 T 5 I + 32.0 V DC Figure 10 Power supply board Adjusting 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 DC a Q a a f a a a Technical Data according to IHF-A-2O2,1978 Tandberg Control Technical data Power req uirements: Power consumption: AC-outlets: Dimensions: Width Depth Height Weight Frequency response Phono MM: Phono MC: Tape 1, Tape 2: Tuner, AUX: Maximum Voltage Output Preamp output: Preamp output: Tape 1, Tape 2: Headphone output: Phono MM: Phono MC: Tape 1,Tape2. Tuner, AUX: Phono MM: Phono MC: Tape 1, Iape 2: Tuner. AUX: A-weighted Signal-to-Noise Ratio Phono MM: Phono MC: Tape 1, Tape 2: Tuner, AUX: Amplifier TCA 3002 1 151230 V ! 100/o, 50/60 Hz 30 W max. Unswitched 1 Switched 3 11 118 (43.5 cm) 13 % (35.0 cml 3 % ( 8.3 cm) 12.5 lbs (5,7 kg) 20 - 20,ooo Hz + 0.2 dB 20 - 20,00O Hz + 0.2 oB 20 - 20,000 Hz + Ol 0.1 dB 20 - 20,000 Hz + 0/- 0.1 dB 5 V at THD = 0.004% 10 V at clipping level 7.5 V 20 V unloaded ( o.ooaz ( o.oo+z ( o.ooaz ( o.ooaz 1 m V 80 uV 70 mV 70 mV Secondary Disclosures Output lmpedance Preamp: Headphones: Headphones (min. load) : Tone-control Response Bass: T reb le: Loud ness: F ilter Sub Sonic: Crosstalk (100 Hz - 1O kHz) Phono MM: Phono MC: Tape 1, Iape 2: Tuner, AUX: Separation (100 Hz - 1O kHzl Phono MM: Phono MC: Tape 1, Tape 2. Tuner, AUX: Transient intermodu lation All inputs: Other Technical Data Frequency Response Tape I, Tape 2: Tuner, AUX: Phase shift l2O Hz - 2O,00O Hzl Tape 1, Tape 2: Tuner, AUX: 560 ohms + 10 uF in series 470 ohms 4 ohms + l 0 d B a t 5 0 H z + tO oB at 10,000 Hz M a x . 7 d B a t 5 0 H z Max. 3 dB at 10,000 Hz - 12 dB/oct., - 3 dB at 15 Hz To any of the other sources ) 70 dB To any of the other sources ) 70 dB To any of the other sort.es ) 70 dB To any of the other sources ) 70 dB )ssoe )ssoe )seae )seoa lmmeasurab le 5 - 130,000 Hz, + Q/- 1.5 69 5 - 130,000 Hz, + 0/- 1.5 dB + g .50 l-2.50 + 9.50 l-2.50 Total Harmonic Distortion l2O Hz - 20.0OO Hz) Input Sensitivity - Ref . O.5 V output voltage Maximum Input Voltage (1 kHz) Phono MM: 290 mV Phono MC: 22 mY T a p e 1 , f a p e 2 : 1 1 V T u n e r . A U X : 1 1 V lnput lmpedance Phono MM: Phono MC: Tape 1, Iape 2: Tuner, AUX: 80 dB 74 dB v5 otJ 95 dB 33 I 47 I 100 kohms 1 kohm 47 kohms 47 kohms I Specifications are subject to change for further improvement without notice. Optional Extras - Black acrylic side walls for freestanding units. - Attachrnent sets for installation in 19 inch racks. ,- TANDBERG The European Alternative Tandberg A/S, Post Office Box 53, 2007 Kjeller, Norway , 1737 - 8 - 80 Part No. 714138 Drihdd i Nla,-., hv D6l- /c