Thorens-TD150AB-tt-sm 维修电路原理图.pdf

THORENSTD-150 AB / TD-I5O AB SERIES IISERVICE MANUAL,JInl_21?.l( JtELPA MARKETING INDUSTRIES, INC.NEW IIYDE PARK, NEW YoRK RadioFans.CN 收音机爱 好者资料库:-IPAGE . L iL5RUBLE AND NOISE LEVEL:Runble is any low frequency disEurbance in the reproductionof phonograph record due Eo the vibration of Ehe motor orEhe Eurntable drive system. Rumble is most easily studiedby playing a record with unmodulated grooves and observingthe noise output. The noise level present in the recordscurrently available is at least equivalent and in mostcases less than the rumble level of Ehe THORENS TD-150model turntable.The objective measuremenE of the rumble level of a turntableis not a s imple rnatter. It requires elaborate insErumentationand exEreme care. The results may also differ with themeasurement method employed. The THORENS TD-150 modelturntables are measured according to the DIN 45539 sEandards.As an approximate measure a subj ective evaluation of therunble level rrrEly be observed.NORMAL TZED AUD IT ION COND IT IONSEvery subj ective evaluation of the rumble and noise level ofa turntable requires that well defined, audition conditions bereal ized ,A record should be selecEed, for auditioning, that is widelyaccepted as an excellenE orchesEra recording and not onewith an overall too low level and lacking bass. Then, playinga Fortissimo passage, the volume control should be adjustedto obtain complete musical pleasure, at a normal listeninglevel without any disturbing element. The bass conErol onthe preamplifier should be adjusted Eo obtain as natural asound as possible. For well designed amplifiers, Ehisshould be aEtained very near Eo the theoretical equalLzationcharacEeristics (tfott positions of Ehe bass and treble controls).These adjustments of volune and tone controls should not bemodif ied f or the nrmble level evaluation which should be made,when a special test record is not available, on the veryfirsE unmodulated grooves of a good record, before the groovewhere the recording amplifier has been swiEched oD, and thenon a passage with the minimum recorded level.FurEhermore, the evaluaEionthe room where best uusicaljusE near a loudspeaker.should be made from the place inresults are obtained and RadioFans.CN 收音机爱 好者资料库PAGE : 2/L5If under Ehese conditions, Ehe rumble level of the turntableis judged disturbing, Ehe following tests nay help to Eracethe cause of Ehe trouble. For analysis of Ehe noise, firsElift the pick-up off the record without changing the controlsetting; the remaining noise will be hum. Shut off the turn-table , if the hum rernains it may be concluded tha t the hum isdue to an incomplete or incorrect installation of the pick-upcarEridge, the improper wiring sysEem is employed (3 wire or5 wire) for Ehe parEicular manufacEure of carEridge or theamplifier is at fault.The amplifier mayand observing theshould be checkedThe wiring sys tempick-up carEridgebe checked by short-circuiting the inputshum level. If it is unchanged the amplifierfur ther .(3 wire or 5 wire) as recommended by themanufacturer should be employed.If when the turntable moEorcause nay be attributed to(rumble) . LubricaEion andfollowed as described.ACOUSTIC FEEDBACKis shut off the hum ceases. TheEurnLable and / or motor vibrationsservice procedures should beThe very low frequency sounds coming out of the loudspeakersrnlly Eransmit appreciable vibraLions to the turntable. ThecabineE supporting this turntable, scting as a resonaEor, mayamplify Ehese vibrations. This will result in higher noiselevels, and in some cass, in instability or feedback. Theacoustic isolation of the THORENS model TD-150 turntable maybe adj us Eed as described in Ehe section Chass is suspens iont .If the cabinet is acting as a resonaEor, it may becomenecessary Eo find another place for the turnEable if compleEestability is to be obtained.SERVICE PROECDURESRUBBER BELT-S 8OO-574Examine Ehe rubber belt by stretching it. If cracks appearin the rubber, the belt is dried out and should be replaced.Before replacing the belt, examine Ehe surface of Ehe motorpulley and ouEer skirt of the inner turntable for traces ofrubber deposits. Clean Ehese surfaces with a soft clothsaturated in denatured alcohol and replace the belEPAGE : 3/L5If Ehe rubber belE makes a slapping noise, too rnuch moisturein the belE may be the cause. Dust your fingers, lightly,with talcum powder and pass the belt through the powder to drytt it or absorb the mois Eure.MOTOR S 804-550 (60H2)s 800- 5s0 (soHz)The motor bearings are of Ehe oi1 retaining type with an oilreserve. Under normal use, the initial lubrication, made aEthe f actory, should be suf f icient f or about I ,000 hours t t:Lln.When the need for a new lubricaEion becomes appareot, proceedas follows:MOTOR UPPER BEARINGPlace a few drops of ROB oil on toP of the bearing, wherethe shaft comes out of the top motor shield.MOTOR LOWER BEARINGSOil should be put on Ehe lower part of the shaft where iLex Eend s f rom Ehe mot,or hous ing .MOTOR AZIMUTHIf Ehe rubber belr (S 800- 574) slips off the motor pulley orrides on Ehe flange of Ehe motor pulley, causing incorrectspeeds (33 L/3 or 45 RPM) the azimuth of the motor inrelaEion to the inner turntable plaEter may have to becorrected. This may be accornplished by adjusEing the screwlocaEed between the moEor pulley and inner turnEable platter.Refer to diagram number 1.The condition of the bearing well and turntable shaft, andtheir lubrication, nly be checked over a period of time byperiodically noting how nany revolutions may be counLed fromthe moment the Eurntable is aE full running speed (33 Ll3 rpm)until the turntable stops. The rubber belt should be removedfor Ehis test and the turntable rotated by hand to achieveoperating speed as observed with a stroboscope. If Ehe numberof revolutions drops radically, Ehe lubrication of both partsis IIIPAGE : 4lL5ON-OFF SWITCH181 E-37 (rD- r 5OAB)181 E-10 (rD-r50 /tt)If the on-off switch fails to operate, remove the unic fromAC and check the contacts with the ohrrneter, operating theactuating lever by hand. The speed selector knob should bein one of Ehe on (speed) positions. If the switch makesconEinuity but the actuating lever movement is insufficientto acEuate the switch, adjust the lever or acEuating cam.The reverse procedure to Ehethe unit fails to shut off.also be tested for a short.If a popping noise occursswitch is operated, the 0.01should be replaced.above should be followed ifThe 0.01 ufd condensor shouldin the speakers when the on-offufd condensor nay be open and50/60 HZ - 110/220 VOLT OPERATTONRefer to wiring drawing number 2, 50/60 HZ conversion requiresreplacemenE of Ehe complete motor assembly S 800-550 for 50HZ and S 804- 550 for 60 HZ.220 Volt operation requiresbe connected in series withthe res is tor is ornmitted orCTTAS S IS SUS PEIS IONthat a 5600 ohm, 5 watt resistorEhe motor. For 110 volt operaEionshorted in the circuit.The trfloaEing chassis supporting the turntable platEers andtonearm board is set upon three conical springs (S 800-523).The fir:mness of the floating chassis may be adjusted forimproved acoustical damping or against room vibrations andalso to compensate for heavier Eonearms that may be used.The hardboard bottom cover to the wood base should be removed.The nut securing the conical springs (S 800- 523) rnay betighEened for a firmer or loosened for a softer suspension.Care should be taken that af ter adjustment, the rrf loatingchassis renains free and does not impinge upon the fixedchass is or wood base. Direct contact betrveen the tvo willcause motor vibrations Eo be transmitted directly to Fi7ur. 1PAGE: 5lL5/o rtft Ac-sBoo do do/zeyhereFt? (tr e ZtlI o.o/ uf422O wlts AC-s 800-1 788F IGIIRE 3 TD- 150A8 SERIES I PAGE 1 6 I L5-:l-,E. 9_-_-i. I Yv +*e orN qsal%t3?DtNr6t1 itlI 50 cps :60 cps :ilwe -e l -CD -i=a=:+-.1-cp-rEffiH ruLE =Z :rs 800-568 r .!i l ; l z i o i = ? ,GlM 5 ptN e34lBM 2x12x6 DIN 84M 3 DrN 934M 3 DrN FIGURE 4 TD-150 AB SERIES I PAGE | 7 lL5s 800-221.Is 008-205*1 ,r7rtllltrHrtII*-Is 808 - 225-ns 801-2372,3 0|l 6799 -_/sws-231 i ll nwH ,/n3xroo*85 E )_-.roo-z1r-.-t l ,/ t-r e rv ertr vv ? I | /- G/ ry G cFFF*Efs.S 008-231- , .E 2b0 rttt,3 0H 125-Lvtl tml _sf-/ | | tt | ,._-!_J_)sooo-229 + / Mtx5 oilgt6s 808 - 215, iIA1.0m137 i - nllMt0lll 93t, F | |_41 lls 808 -72s - J1 | |tr llrtllA s808-20s I IirlHLJ 3r20Bet5,=soog -zts-k I s800-930 -=-=_z | ,.321-26 -=+ i, . t ,.)r r,xb oilr 916r S000-235*._a_-_nntnr-l , - s8(E-3g1z- i -,.n-l -t-$l r-. In-7 31 2,9 x10 0lll 797t,I_),./S 808 -223tT 4/E,r/a S 808-108fiu-s oos -22I- g O- CFrF!soog-231- , .E zsorttn aFr- ttW-q-/S E00 -3912- tS gge -ZZ;ffif sFIGI,JRE 5 TD TD-150 lTT PAGE 8/L5s 8 5 8 - 2 8 4s 8 0 0 - 5 7 42 6 I3 , 2 D r N3 xs 3 0 2 - 5 0 Frcr,rRE 6 1D-150 lttPAGE 9 /L54rn oN Oc ot l .-O l-c o a u )er-zr-xA- Nr n l- c at c oIl u lrnI,-t-ac! oo NN c !l l o C O r n33aFaEbE- - ,*GEf-_rE -G raF-_=-+=*tt-.l-t-:l-.-tln ftO oo ol l- ,r-. F_ c o(/) ()zG- -ril- d- ooI.r-t o Ds 8 7 1 - 0 1 4o( t ,PCs87r -072NIcou )ca,-Io- lo57- 2 3 729Q eIO8s 856 - r7rs 808 -s 856 - I91 (-&3 A4 DrN 6913o .g J r z U L t q J Jtl 4 DrN 934s 856 - 2L6,|*es87r_016-_-ovN-caI(l)NIcoaI.1r-atls| -I,l=t wl|,s 801s 808O.lIu )s 871 - 058 As 87r - 007s 8 0 8 - 2 0 5- S 8 0 8 - 2 r 1os 843 - 285B 2 , 9 x 9 , 5D I N 7 9 7 II v l 3 xOIGt.ED8 x 3 , 2 x 0 3 D I N5 x 5 0 D I N 8 4s 8 0 0 - 1 3 5 3E8 D,rt ll4 3 3Ct)433 EtFIGI.RX 7 TD- 15OIIPAGE: 10 ltS850 - 29rM3xL2DIN6s 8 5 0 - 0 1 7n 6 , - t x 0 r 5 x I I6+X-DEO,sF-s 8oo - 5610ffisduu-)orffiw-E=s 8oo - s68 (D3I2 - 157 csM 5 D I N 4 3 3 s 8 5 5 - 2 6s 356 - 027.-fr:Ig-SdFEFIGTRE 8 TD-150 lTTPAGE: 11 ltSt 3 x 0 , 4 D I N 4c!OLncoa. 3 * 0,4 DIN 471613,2.DIN 433a 3I2 - 1879 q J r z D r L t q J JNItn(/):boOrl AN; i Y ot A zHraa!|,irlo r l ,v Cat 6r!) ,.-Ir-9zHo1aa0_l.1cIcolr)_r-.-l .+o ZI nC ar c o oA vcarlvCFrrt-ot-zHHno01t-aar-Irnco_lF-sz c r c: J lt v oNe a -.draao.-ttnoaAi l,.-lJXLOXNIrtrn,t -szHt-XoILnLNPAGE: L2/L5THORENS PARTS LIST(TD-150, TD-150AB, TD-l50AB lttltA4 DIN L37A 4 DIN 69L3AM 4X5 DIN 913-1OKB2 9X9-5 DrN 7974B3-2 DIN 933BM 2XL2X6 DIN 84BZ 2-9 DIN 797Lrdt D rN 934M3X6 DIN 84M3X8 DIN 84M3Xl0 DIN 85qM3XT2 DIN 84M3x15 DIN 84M3X16 DIN 84YI4 DIN 93t+M4X5 DIN 9L6M4X8 DIN 438M5 D IN 433M5 D IN 934M 5X50 DIN 84s E.s 800- 510s 800 -sL4s 800- 515s 800- 516s 800- 5L7s 800- 519s 800 - 52Ls 800 -522s 800 -523s 800 - 526s 800- 527s 800 - 528s 800- 550s 800 - 552s 800-561s 800- s67s 800- 569s 800- s74s 800- s7 8s 800-578Ds 800-1353*s 800-1788s 801 -237s 801 -239*s 801- 1057s 802-500s 808- 13*Lock WasherWas he rScrewScrewWasherScrewScrewNuEScrewScrewScrewScrewScrewScrewNutGrub ScrewsGrub ScrewsNutNUEScrewOuter TurntableSpeed Change Drum (Series I)Spindle for speed change drum (Series I)Speed Change Lever (Series I)Belt Lever (Series I)Knob (Series I)Spac er45 RPM AdaptorConical SpringSuspension Chassis-CompleEe (Series I)Inner TurntableChassis Place (Series I)50 HZ Motor with PulleyBrushed Aluminum Deck Plate (Series I)DamperSuspens ion gromne Es-upperSuspens ion groumets- lowerRubber BeltsTonear:m mounting board-blankTonearm mounting board-drilled (Series I)Bearing Well (Series II) S 856 -022)Rubber MatArm Rest (Series I)Base for Tonearm (S 871-005)Arm Lock (Series II)Wood Base (Series I)Wiring harness ground (S 871-PAGE: 13/15s 800-517 Belt Lever (Series I)S 800-519 Knob (Series I)S 800-521 SpacerS 800-522 45 RPM adaPtorS 800-523 Conical springS 800-526 Suspension chassis-Complete (Series I)S 800-527 Inner TurntableS 800-528 Chassis plate (Series I)S 800-550 50 HZ notor with PulleYS 8OO-552 Brushed aluminum deck plate (Series I)S 800-56L DamPerS 800-567 Suspension grolmets-upperS 800-568 Suspension gromnets-lowers 800-574 Rubber beltS 800-478 Tonearm mounting board-blandS 800-4780 Tonearm mounting board-drilled (Series I)S 800-1353* Bearing Well- (Series II) (S 856-022)s 800-1788 Rubber matS 801-237 Arm Rest (Series I)S 801-239& Base for tonearm (s 871-005)S 801-1057 Arm Lock (Series II)S 802-5OO Wood Base (Series I)S 802-501 Hardboard botton covers 804-550 60 HZ-neter with PulleYS 808-13* Wiring harness ground (s 871-005)s 808-20* Wiring harness lift ( s 871-005)S 808-21* Wiring harness right (s 871-005)S 808-108 Knurl-ed screwS 808-200 Tonearm tube (Series I)s 808-202* Screw collar (S 871-005)s 808-205* Tonearm shaft (808-200)S 808-208* Bearing bushlngS 808-211 Knurled screw (Series I)S 808-215* Hol-ding arrn (S 808-200)s 808-218 Ball holderS 808-220* Clarnp (S 808-200)S 808-221 Bearing screlt (Serles I)s 808-222 Threaded bushing (Series I)S 808-223 Counter weight (Series I)S 808-224 Tube and CaP (Series I)S 808-225 Calibration place (Series I)S 808-225A* plug (S 871-005)S 808-226* sleeve (S 871005)s 808-228 Lohtering device (Series I)s 808-229* shaft (s 808-228)S 808-230* screw plug (s 808-228)s 808-231* PLate (S 808-s 808 -234*s 808 -235*s 808- 237s 808- 930*s 808 -39L2*s 843 -2L*s 843 -285*s 843 -297s 843-304s 840-011*s 850-017*s 850-163s 850 -206s 850- 2L0s 850- 211A*s 850 -240*s 850- 277 A*s 850 -29Ls 851 -277 A s 855-26*s 855 -069s 855-073s 855-098s 855-151s 855- 249s 856-002s 856 -027s 856- 062s 856 -L7Ls 856-191s 856 -2L6s 858- 284s 859-098 -s 871-005s 871-006*s 871-007*s 871-058A*s 871-060*s 87L-065s 87L-067*s 871-069*s 871- 072s 871- 074*s 87r-076s 871-1051. 5h 8X10 DrN 72.3 DrN 6799*2.7XL5 DrN 7 5tPAGE: L4/L5Lever (S 808 -228Bearing Block (S 808-200)Pos t f or Arm Lock (Series I)Cover Cap (S 808-200)slotted nut (S 808 -228)Plug (S 871-005)cueing lever (S 856-191)Gasket (Series II)cueing platform (Series II)Bracket (S 856-002)Mounting stud (S 840 -29L)Lever (Series II)Belt Guide (Series II)Belt lever (Series II)rab (s 856-002)Cueing Shafr (S 856-191)50 HZ Motor Pulley (S 855-098)Chassis Plate-movable60 Hz Moror pulley (s 859-098)MagneEic Shield (S 856-002)Speed selector cam (Series II)Rod (Series II)50 HZ Motor with pulleyInsulation plate (Series II)Brushed aluminum deck plate (Series II)Chassis plate- fixed (Series II)Rubber cushionsCueing cam (Series II)Tonearm board-drilled (Series II)Cueing mechanism (Series II)Cable (Series II)Wood Base (Series II)- 60 HZ Motor wiLh PulleyTonearm-complete (Series II)Screw plate (S 87L-005)Console (S 87L-005)Sytlus Force Arm (S 87 -005)Anti-skating arm movable (S 871-005)CounterhTeight (Series II)Sleeve for counterweight (S 87L-065)Knob for counter*reight (S 87 -065)SEylus force weight (Series II)Knbo for stylus force weight (S 871-072)Anti-skating arm-fixed (Series II)Anti-skating weight (Serles II)PinLock washer (S 808- 228)S2.9 X 10 DrN 897 43 DrN 67 993.2 DIN L253.2 DrN 4333.2 DIN 433 hp3X0.4 DIN 47L3X7 DIN 96st3XIO D IN 964X0 .4 DIN !+7L4.3 DIN L255.3 DIN L255.3 DrN 4336XO. 7 DIN 47L6 .4x0 . 5x118X3. 2X0.3 DrN 2093181 E 37183 e 10189- 1820L e 106202 e 49*206 E 59296 E 60207 E L4207 E 52207 E 53208 E 4525A E 11260e 82260e 83287 -2290e108313 -L573 13- 1593L2- 1603L2- 1853L2- 18 73L4-42*3L4-44320-lt 20320-02L320-2832L-E 26x32L-25PAGE: 15 /tSWood ScrewClipWasherWasherWasherCl ipWood screwWood screwCX.lpWasher1IasherWasherCl ipWasherWasherT