Thorens-TD150ABMKII-tt-sm 电路图 维修手册.pdf

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1、THORENS TD-150 AB / TD-I5O AB SERIES II SERVICE MANUAL ,J I n l_21 ? .l ( J t ELPA MARKETING INDUSTRIES, INC. NEW IIYDE PARK, NEW YoRK 11040 RadioFans.CN 收音机爱 好者资料库 :- I PAGE . L iL5 RUBLE AND NOISE LEVEL: Runble is any low frequency disEurbance in the reproduction of phonograph record due Eo the vi

2、bration of Ehe motor or Ehe Eurntable drive system. Rumble is most easily studied by playing a record with unmodulated grooves and observing the noise output. The noise level present in the records currently available is at least equivalent and in most cases less than the rumble level of Ehe THORENS

3、 TD-150 model turntable. The objective measuremenE of the rumble level of a turntable is not a s imple rnatter. It requires elaborate insErumentation and exEreme care. The results may also differ with the measurement method employed. The THORENS TD-150 model turntables are measured according to the

4、DIN 45539 sEandards. As an approximate measure a subj ective evaluation of the runble level rrrEly be observed. NORMAL TZED AUD IT ION COND IT IONS Every subj ective evaluation of the rumble and noise level of a turntable requires that well defined, audition conditions be real ized , A record should

5、 be selecEed, for auditioning, that is widely accepted as an excellenE orchesEra recording and not one with an overall too low level and lacking bass. Then, playing a Fortissimo passage, the volume control should be adjusted to obtain complete musical pleasure, at a normal listening level without an

6、y disturbing element. The bass conErol on the preamplifier should be adjusted Eo obtain as natural a sound as possible. For well designed amplifiers, Ehis should be aEtained very near Eo the theoretical equalLzation characEeristics (tfott positions of Ehe bass and treble controls). These adjustments

7、 of volune and tone controls should not be modif ied f or the nrmble level evaluation which should be made, when a special test record is not available, on the very firsE unmodulated grooves of a good record, before the groove where the recording amplifier has been swiEched oD, and then on a passage

8、 with the minimum recorded level. FurEhermore, the evaluaEion the room where best uusical jusE near a loudspeaker. should be made from the place in results are obtained and not RadioFans.CN 收音机爱 好者资料库 PAGE : 2/L5 If under Ehese conditions, Ehe rumble level of the turntable is judged disturbing, Ehe

9、following tests nay help to Erace the cause of Ehe trouble. For analysis of Ehe noise, firsE lift the pick-up off the record without changing the control setting; the remaining noise will be hum. Shut off the turn- table , if the hum rernains it may be concluded tha t the hum is due to an incomplete

10、 or incorrect installation of the pick-up carEridge, the improper wiring sysEem is employed (3 wire or 5 wire) for Ehe parEicular manufacEure of carEridge or the amplifier is at fault. The amplifier may and observing the should be checked The wiring sys tem pick-up carEridge be checked by short-circ

11、uiting the inputs hum level. If it is unchanged the amplifier fur ther . (3 wire or 5 wire) as recommended by the manufacturer should be employed. If when the turntable moEor cause nay be attributed to (rumble) . LubricaEion and followed as described. ACOUSTIC FEEDBACK is shut off the hum ceases. Th

12、e EurnLable and / or motor vibrations service procedures should be The very low frequency sounds coming out of the loudspeakers rnlly Eransmit appreciable vibraLions to the turntable. The cabineE supporting this turntable, scting as a resonaEor, may amplify Ehese vibrations. This will result in high

13、er noise levels, and in some cass, in instability or feedback. The acoustic isolation of the THORENS model TD-150 turntable may be adj us Eed as described in Ehe section Chass is suspens iont . If the cabinet is acting as a resonaEor, it may become necessary Eo find another place for the turnEable i

14、f compleEe stability is to be obtained. SERVICE PROECDURES RUBBER BELT-S 8OO-574 Examine Ehe rubber belt by stretching it. If cracks appear in the rubber, the belt is dried out and should be replaced. Before replacing the belt, examine Ehe surface of Ehe motor pulley and ouEer skirt of the inner tur

15、ntable for traces of rubber deposits. Clean Ehese surfaces with a soft cloth saturated in denatured alcohol and replace the belE. RadioFans.CN 收音机爱 好者资料库 PAGE : 3/L5 If Ehe rubber belE makes a slapping noise, too rnuch moisture in the belE may be the cause. Dust your fingers, lightly, with talcum po

16、wder 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 oil reserve. Under normal use, the initial lubrication, made aE the f actory, should be suf f icient f or about I ,000 hour

17、s t t:Lln. When the need for a new lubricaEion becomes appareot, proceed as follows: MOTOR UPPER BEARING Place a few drops of ROB oil on toP of the bearing, where the shaft comes out of the top motor shield. MOTOR LOWER BEARINGS Oil should be put on Ehe lower part of the shaft where iL ex Eend s f r

18、om Ehe mot,or hous ing . MOTOR AZIMUTH If Ehe rubber belr (S 800- 574) slips off the motor pulley or rides on Ehe flange of Ehe motor pulley, causing incorrect speeds (33 L/3 or 45 RPM) the azimuth of the motor in relaEion to the inner turntable plaEter may have to be corrected. This may be accornpl

19、ished by adjusEing the screw locaEed between the moEor pulley and inner turnEable platter. Refer to diagram number 1. The condition of the bearing well and turntable shaft, and their lubrication, nly be checked over a period of time by periodically noting how nany revolutions may be counLed from the

20、 moment the Eurntable is aE full running speed (33 Ll3 rpm) until the turntable stops. The rubber belt should be removed for Ehis test and the turntable rotated by hand to achieve operating speed as observed with a stroboscope. If Ehe number of revolutions drops radically, Ehe lubrication of both pa

21、rts is indicated. I I I PAGE : 4lL5 ON-OFF SWITCH181 E-37 (rD- r 5OAB) 181 E-10 (rD-r50 /tt) If the on-off switch fails to operate, remove the unic from AC and check the contacts with the ohrrneter, operating the actuating lever by hand. The speed selector knob should be in one of Ehe on (speed) pos

22、itions. If the switch makes conEinuity but the actuating lever movement is insufficient to acEuate the switch, adjust the lever or acEuating cam. The reverse procedure to Ehe the unit fails to shut off. also be tested for a short. If a popping noise occurs switch is operated, the 0.01 should be repl

23、aced. above should be followed if The 0.01 ufd condensor should in the speakers when the on-off ufd condensor nay be open and 50/60 HZ - 110/220 VOLT OPERATTON Refer to wiring drawing number 2, 50/60 HZ conversion requires replacemenE of Ehe complete motor assembly S 800-550 for 50 HZ and S 804- 550

24、 for 60 HZ. 220 Volt operation requires be connected in series with the res is tor is ornmitted or CTTAS S IS SUS PEIS ION that a 5600 ohm, 5 watt resistor Ehe motor. For 110 volt operaEion shorted in the circuit. The trfloaEing chassis supporting the turntable platEers and tonearm board is set upon

25、 three conical springs (S 800-523). The fir:mness of the floating chassis may be adjusted for improved acoustical damping or against room vibrations and also to compensate for heavier Eonearms that may be used. The hardboard bottom cover to the wood base should be removed. The nut securing the conic

26、al springs (S 800- 523) rnay be tighEened for a firmer or loosened for a softer suspension. Care should be taken that af ter adjustment, the rrf loating chassis renains free and does not impinge upon the fixed chass is or wood base. Direct contact betrveen the tvo will cause motor vibrations Eo be t

27、ransmitted directly to the tonearm. Fi7ur. 1 PAGE: 5lL5 /o rtft Ac- sBoo do do/z ey here Ft? (tr e Z tl I o.o/ uf4 22O wlts AC- s 800-1 788 F IGIIRE 3 TD- 150A8 SERIES I PAGE 1 6 I L5 -:l - , E . 9_-_ -i. I Yv +*e orN qsal % t3?DtNr6t1 itl I 50 cps : 60 cps : il w e - e l - -CD - -i= a=: + -.1- cp -

28、rE ffi H ruL E = Z : rs 800-568 r .! i l ; l z i o i = ? , G lM 5 ptN e34l BM 2x12x6 DIN 84 M 3 DrN 934 M 3 DrN 934 FIGURE 4 TD-150 AB SERIES I PAGE | 7 lL5 s 800-221. I s 008-205 *1 , r7r tl ll tr H rt I I *- I s 808 - 225-n s 801-237 2,3 0|l 6799 -_ /sws-231 i ll n w H ,/n3xroo*85 E )_-.roo-z1r-.-

29、t l ,/ t-r e rv ertr vv ? I | /- G / ry G cFFF*Efs. S 008-231- , .E 2b0 rtt t,3 0H 125 -Lvtl tml _sf -/ | | tt | ,._-!_J_) sooo-229 + / Mtx5 oilgt6 s 808 - 215, i I A1.0m137 i - n ll Mt0lll 93t, F | | _41 ll s 808 -72s - J1 | | tr ll rtll A s808-20s I I irl H LJ 3r20Bet5, = soog -zts-k I s800-930 -

30、=-= _z | ,. 321-26 -=+ i, . t ,.)r r,xb oilr 916 r S000-235*._a_-_nntnr- - l , - s8(E-3g1z- i - ,.n-l -t-$l r-. I n-7 31 2,9 x10 0lll 797t, I _) ,./S 808 -223 tT 4 /E ,r/ a S 808-108 fi u-s oos -22 I - g O- CFrF! soog-231- , .E zsortt n aFr- t tW-q-/ S E00 -3912- tS gge -ZZt ;ffif s FIGI,JRE 5 TD TD

31、-150 lTT PAGE 8/L5 s 8 5 8 - 2 8 4 s 8 0 0 - 5 7 4 2 6 I 3 , 2 D r N 3 x s 3 0 2 - 5 0 1 Frcr,rRE 6 1D-150 lttPAGE 9 /L5 4 rn o N O c o t l .- O l- c o a u ) )e r- z r- x A - N r n l - c a t c o I l u l rn I ,- t- a c! o o N N c ! l l o C O r n 33a F aEbE- - - ,*GEf-_ rE -G raF-_=-+=*tt-. l-t-:l-.-

32、t ln ft O o o o l l - , r-. F_ c o (/) () zG- - - -ril - d - o o I . r- t o D s 8 7 1 - 0 1 4 o ( t ,PCs87r -072 N I co u ) ca ,- I o - lo57 - 2 3 7 29Q eIO8 s 856 - r7r s 808 - s 856 - I91 (- i Y o t A z H r aa !|,irl o r l , v Ca t 6 r!) ,. - Ir- 9 z H o 1 aa 0 _l .1 c I co lr) _ r- .-l .+ o Z I n

33、 C a r c o o A v ca rl v CF rr t- o t- z H H n o 01 t- aa r- I rn co _l F- s z c r c : J l t v o N e a - .dr aa o .-t tn o a A i l , .-l J X LO X N I rtr n , t - s z H t- X o I Ln LN co a PAGE: L2/L5 THORENS PARTS LIST (TD-150, TD-150AB, TD-l50AB lttl t A4 DIN L37 A 4 DIN 69L3 AM 4X5 DIN 913-1OK B2

34、9X9-5 DrN 7974 B3-2 DIN 933 BM 2XL2X6 DIN 84 BZ 2-9 DIN 797L rdt D rN 934 M3X6 DIN 84 M3X8 DIN 84 M3Xl0 DIN 85q M3XT2 DIN 84 M3x15 DIN 84 M3X16 DIN 84 YI4 DIN 93t+ M4X5 DIN 9L6 M4X8 DIN 438 M5 D IN 433 M5 D IN 934 M 5X50 DIN 84s E. s 800- 510 s 800 -sL4 s 800- 515 s 800- 516 s 800- 5L7 s 800- 519 s

35、800 - 52L s 800 -522 s 800 -523 s 800 - 526 s 800- 527 s 800 - 528 s 800- 550 s 800 - 552 s 800-561 s 800- s67 s 800- 569 s 800- s74 s 800- s7 8 s 800-578D s 800-1353* s 800-1788 s 801 -237 s 801 -239* s 801- 1057 s 802-500 s 808- 13* Lock Washer Was he r Screw Screw Washer Screw Screw NuE Screw Scr

36、ew Screw Screw Screw Screw Nut Grub Screws Grub Screws Nut NUE Screw Outer Turntable Speed Change Drum (Series I) Spindle for speed change drum (Series I) Speed Change Lever (Series I) Belt Lever (Series I) Knob (Series I) Spac er 45 RPM Adaptor Conical Spring Suspension Chassis-CompleEe (Series I)

37、Inner Turntable Chassis Place (Series I) 50 HZ Motor with Pulley Brushed Aluminum Deck Plate (Series I) Damper Suspens ion gromne Es-upper Suspens ion groumets- lower Rubber Belts Tonear:m mounting board-blank Tonearm mounting board-drilled (Series I) Bearing Well (Series II) S 856 -022) Rubber Mat

38、Arm Rest (Series I) Base for Tonearm (S 871-005) Arm Lock (Series II) Wood Base (Series I) Wiring harness ground (S 871-005 PAGE: 13/15 s 800-517 Belt Lever (Series I) S 800-519 Knob (Series I) S 800-521 Spacer S 800-522 45 RPM adaPtor S 800-523 Conical spring S 800-526 Suspension chassis-Complete (

39、Series I) S 800-527 Inner Turntable S 800-528 Chassis plate (Series I) S 800-550 50 HZ notor with PulleY S 8OO-552 Brushed aluminum deck plate (Series I) S 800-56L DamPer S 800-567 Suspension grolmets-upper S 800-568 Suspension gromnets-lower s 800-574 Rubber belt S 800-478 Tonearm mounting board-bl

40、and S 800-4780 Tonearm mounting board-drilled (Series I) S 800-1353* Bearing Well- (Series II) (S 856-022) s 800-1788 Rubber mat S 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 cover s 804

41、-550 60 HZ-neter with PulleY S 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 screw S 808-200 Tonearm tube (Series I) s 808-202* Screw collar (S 871-005) s 808-205* Tonearm shaft (808-200) S 808-208*

42、Bearing bushlng S 808-211 Knurled screw (Series I) S 808-215* Hol-ding arrn (S 808-200) s 808-218 Ball holder S 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 Calibr

43、ation 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 808-228 s 808 -234* s 808 -235* s 808- 237 s 808- 930* s 808 -39L2* s 843 -2L* s 843 -285* s 843 -

44、297 s 843-304 s 840-011* s 850-017* s 850-163 s 850 -206 s 850- 2L0 s 850- 211A* s 850 -240* s 850- 277 A* s 850 -29L s 851 -277 A s 855-26* s 855 -069 s 855-073 s 855-098 s 855-151 s 855- 249 s 856-002 s 856 -027 s 856- 062 s 856 -L7L s 856-191 s 856 -2L6 s 858- 284 s 859-098 - s 871-005 s 871-006*

45、 s 871-007* s 871-058A* s 871-060* s 87L-065 s 87L-067* s 871-069* s 871- 072 s 871- 074* s 87r-076 s 871-105 1. 5h 8X10 DrN 7 2.3 DrN 6799* 2.7XL5 DrN 7 5 t PAGE: L4/L5 Lever (S 808 -228 Bearing Block (S 808-200) Pos t f or Arm Lock (Series I) Cover Cap (S 808-200) slotted nut (S 808 -228) Plug (S

46、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-movable 60 Hz Moror pu

47、lley (s 859-098) MagneEic Shield (S 856-002) Speed selector cam (Series II) Rod (Series II) 50 HZ Motor with pulley Insulation plate (Series II) Brushed aluminum deck plate (Series II) Chassis plate- fixed (Series II) Rubber cushions Cueing cam (Series II) Tonearm board-drilled (Series II) Cueing me

48、chanism (Series II) Cable (Series II) Wood Base (Series II) - 60 HZ Motor wiLh Pulley Tonearm-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 co

49、unter*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) Pin Lock washer (S 808- 228) Screw 2.9 X 10 DrN 897 4 3 DrN 67 99 3.2 DIN L25 3.2 DrN 433 3.2 DIN 433 hp 3X0.4 DIN 47L 3X7 DIN 96st 3XIO D IN 96 4X0 .4 DIN !+7