PIONEER PL-A25 OPERATING Owners Manual

NEe R" BRAND IN HI·FI REPR O DU C TI ON OPERATING INSTRUCTIONS • HIGH-FIDELITY AUTOMATIC STEREO TURNTABLE ODEL Thank you for your purchase of Pioneer's Model PL- A2 5. You will get ma ny years of pleasure from th is quality-crafted component. For t he highest performance of t he PL·A25, read this manual carefully and follow the directions indica ted . FV

FEATURES __________________________________________ ___ I • NEW HIGH-TORQUE MOTOR The 4-pole outer rotor high-torque mot or employed in the PL-A25 provides more overall, stable mechanical performance. • A NEWLY DEVELOPED FULLY AUTOMATIC MECHANISM In addition to the smooth cu ing device, the fully au t o- matic mechanism of the PL-A25 includes an aut omatic start mechanism which brings the tonearm i nto action by merely setting the lever to the size of the record to be played, 1 2"(30 em). 10"(25 em) or 7"(17 em), and an automatic repeat mechanism which permits the record to be played back repeatedly . • A MASSIVE 12·INCH ALUMINUM TURNTABLE The massive. precision-finished 12- inch aluminum-alloy PLATTER tur nt able platter ensures very uniform revolution. with extremely l ow wow and flutter. • BEL T·DRIVE IN AN AUTOMATIC- A FIRST BY PIONEER PI ONEER's belt-drive system, which uses a belt of long- las tin g, deformation-free polyurethane, adds another feature to the advantages of the fully automatic mecha· nism, el iminating the problems of wow and flutter, speed fluctuation, etc_ • SOPHISTICATED APPEARANCE The simple, sophisticated appearance of the unit lets it blend well with other audio equipment. •

INSTALLATION _ _ __ ___ ____________ _ The Model Pl·A25 operates witt'! a very smalt tracking force. Select the location of the PL ·A25 with care. It should be in a stable position. It is a good practice to keep the unit away from the loudspeaker cabi nets as far as possible. LINE VOLTAGE AND FREQUENCY _ _______ ____ _ Check the line voltage and frequency in your area before use, because your PL ·A25 may not be set for operation of the line vol tage and frequency in your area. 1. To set the PL·A25 to the, pr oper lin e vo ltage Model PL ·A 25 is se t for 240V operation when shipped. If the line voltage in your area is not 240V. pull out the line-voltage selector plug and put it back as shown in Fig. 1 for operation of any li ne voltage of 220V, 130V, 117Vor110V. 2. To set the Pl ·A25 to th e proper line frequency The Pl·A25 is set for operat i on on the frequency in your area. Check the line frequency in your area; if it is different from your area, change it the proper frequency ( Hz ) with the switch near the center of the motor board . 1f the switch is ch anged, the capstan must be changed. Remove the capstan by loosening the two setscrews using the furnished screwdriver. The 60 Hz capstan is marked with a groove, and the 50 Hz capstan is not marked. (Fig. 2) Replace it with the matched capstan furnis hed in accessory bag. Capstan and switch must match as shown fig. 2. Note: If you move to some other area where another line frequency is used you must adjust your Pl ·A25 to match the frequency . In this case remove belt and platter, and change the switch and capstan. I , 0", I ,TV o '- " H. . .. LINE; YOL T .... GE SI!. .I!:(; TOR P\..UG 220", CAPSTAN ( SET AT T HE 33 ·_ POSITION) POSIT ION • F ig. 1 Fig. 2 2

3 OUTPUT GROUNDING POWER CC LINE -VO L 5ELECTOR PLUG CAPS EIR SPEED COVER MAT RING MAT NTAB LE PLATTER I VE BELT 5- RPM ADAPTDR M CUEING LEVER M RE ST ARTRIDGE MAN UAL AND SI ZE TO R FUN CTION LEVER ARTING -C APA CITOR SWITCH FOR LUBRICATION 1FT LEVER GUIDE - Fig. 3

ASSEMBLY To prevent any possible damage in tr ansit, precIsion parts and the turntable platter are packaged separately from the wooden base in the same packing case. Ca refully unpack the packing case and install individual parts properly by referring to the illustrations. 1. Remo va l of two motor-clamp ing screws The motor board is secured to the base with two set· screws to prevent damage during transit. Remove the two sc rews. (Fig. 4) 2. As sembling turntable platter The turntable is packed separately. Ca refully unpack it and mount it on the center shaft. Pl ace the rubber mat on the platter after the drive b el t is set on the capstan. 3. Setting the belt on the capstan Set the speed sele cto r switch to the 33 position. Pulling the ribbon a tta ched to the drive belt, put the drive belt through the bel t gu ide (shift lever) and then set it on the smaller diameter po rt io n (the upper portion) of the capstan, using the ribbon. (F ig. 5) After the belt is properly set on th e capstan, remove the ribbon. 4. Remove the tone arm pro tec t or As illustrated in Fig. 6 open up the white plastic protec- tive cover which secures the ton earm, and remove it. Then remove th e ribbon which fastens the tonearm to the arm rest. 5. Dust cover Attach the dust cover whi le holding the cover at an angle of about 45° and move the du st cover to the left until the hinges catch. (Fig.7) The cover is removed from the wooden base by depress· ing the catch (holding th e cover at ab out 45°) and moving it to the right. 5<; REIfI'S 1 1 ® Fi g. 4 - Fig. 5 Fig. 6 Fi g, 7 4

AOUUSTMENT ______________________________________ __ Stylus Pressure • Measurement The stylus pre ssu re has been properly adjusted at the fa cto ry before shipment. When you wish to measure the sty lu s pressure, set the manual and record size in selector MANUAL position and the function lever in STA RT /CUT position. When the tu rnt able has started revolving, unplug the power cord, and the turntable will stop. Place the stylus pr ess ure gauge on the record as illustrated in Fig . 8. Position the stylus point on the graduated side of the gauge and adjust the stylus position on the gauge so that the stylus pressure complete ly balances the gauge in a hori zo ntal position and th en re ad the graduation on which the stylus po int is positioned . • Adjustment Loosen the screw which secures the counterweig ht to the rear of the t onearm, and move th e counterweight back and forth until an optimum stylus pressure of 2 to 3 grams is obtained. Moving the counte rweight forward will increase the stylus pressure and moving it backward will decrease the stylus pressure. Automatic Cu e ing Position It is not usually necessary to readjust the screw (F ig. 9 ). If necessary, remove the rubber grommet, keep the tone arm on the arm rest, and set the manual and record size selector in the 30, 25 or 17 position. Adjust th e screw with the screwdriver (refer to fig. 9). • , RUBBER SCREW '®' 1 f ( 4mm ) Fig .8 SC REW For slight shift to I Turn- -' f@ S CREW Fig . 9 5

6 NEIR CONNECTION TO STEREO AMPLIFIER The cartridge furnished with the PL ·A25 is of an induced magnet type . Therefore, use the PHONQ MAG input jacks of your amplifier for connection with the PL·A25. If you r ampli f ier is not provided with the PHONO MAG input jacks, you must purchase a preamplifier (such as PIONEER STP·2) separately and use it f or matching the Pl ·A25 to your amplifier. 1. The output co rd of PL - A25 has three leads at its end ; the first is marked " L "(l eft channelL the second, " A" (ri ght channell. and the third colored in black. Connect the "L" and "R" leads to the respective PHONO MAG input jac ks of your stereo amplifier. 2. The black lead is for ground conn ec tion and has a terminal lug on its end. Connect the tug to the grounding terminal on your amplifier. (Fig. l0 ). SETTING UP A STEREO SYSTEM PL- A2 c.- 5 _ STEREO AMPLIFIER I TOOR "MPLIFIER 1'-'-' -- -_. --' , , i'>HONO M"G INF>UT l J"CK "C OOTLET GROUND TERMIN € II I@ I , ,"ou", LE"O Fig. 10 r-__ SYSTEMS LEFT CHANNEL RIGHT CHANNEL Fig. 11

7 OPERATION A ut omatic Pl ay 1. Make sure that t he arm lifting lever is in DOWN position. 2. Set the manual a nd record size selector to the size of the record to be played 12 "(3Otm). lO"(25cm) or 7"( 17 cml. 3. Check the speed of the record (33 or 45 rpm) and make sure that the speed selector has been set in the proper position. If not, set the speed selector lever as follows. (a) Set the manual and record size selector shown in Fig. 13 in MANUAL position. (bl Set the function lever in STAR T/ CUT posi t ion and immediately release the lever. (Fig.13) The turntable will now start revolving. Set the speed selector to'either 33 or 45. (Fig.12) te) After se tt ing th e sp eed selec tor, move the func- t ion lever again up to START ICUT position. Th e t urntable will stop revolving. Note : • Speed must be c han ged only when the turntable is revolvi ng. • W he never the turntable is rot at ed to change speed, be sure to keep the manual and r ecord size selector in MANUAL position. 4. Set the f unction lever in START /CUT position. The turntable will begin revolving and the tone arm will a utomatically float down onto th e record. 5. Wh en playback comes to an end, the t one arm will automatically re t urn to the arm re st and the turntable stops revolving. Manual Pla y ,. Set the arm lifting lever to UP posit ion. 2. Set the manual and record size selector to MANUAL. 3. Move the tonearm horizo nt a ll y to the position from which you want the record to begin. 4. Set the fun ction lev er in S TAR T/CU T position and release th e lever, then set the arm lifting lever to DOWN position. Th e tone arm will float down slowly to the record and the un it will star t playing. 5. When the record has finish ed, the tonearm will r ise and return automatically to the arm rest, and the turntable will stop. Stop (Cu t ) pl ay To stop the re co r d, move the function lever to ST ART / CUT, and release the leve r. Th e tonearm wi ll return to the arm re st and the turnt able wi ll st op. Rep eat To repeat th e same record : Set the function lever in REPEAT pos it ion while playing, and the unit will repeat aut omatically. P ause To temporaril y stop playing, move the arm lifting lever to UP. The ton ea rm will rise. Since th is lever has no connec tion with any other automatic mecha· nism, it sh ould be normally set in DOWN position. Operat ion Tips • Moving or setting of each of the control levers must be done q uickly . • Never touch the tonearm while it is moving. • Do not ho ld the rotating turntable by hand . •

Fig. 13 o AR M LIF T IN G LE VER 30 cm 25 cm F ig . 12 00 not change the SPEED SEL· ECTOR S WI TC H l.nIess turntable is rotating. DOWN ······ Set the lever in this posi t ion no rma ll y. Up · ........ Set the lever in th is posi ti on wh en you wish to stop playing the record temporar il y. MA N UA L AND RECORD SIZE S EL ECTOR MANUAL CUT 7" 17 cm f- -' REP EA T FUNCTIO N LE VER • • 8

MAINTENANCE Cleaning stylus Dust collected on th e stylus point degrades the quality of reproduced sound. If dust is f ound on the re cord surface, remove it with a soft, dean clot h da mp ened with a comme rcially avilable re cord cleaner. When cleaning the stylus, use a soft brush, drawing it gently along the stylus in the direction of the tonearm's axis, care must be exercised not to touch the sty lus with fingers. Lubrication Provide your turntable with lubricant periodically. Use either the furnished lubricant or any good light machine oi I. Motor sh aft lor 2 drops , once every three months (Fig. 14) Turntable sh aft 5 or 6 drops, once or tw i ce a year ( Fig. 14) Note : 9 Be su re that no oi l adheres to the drive belt when oili ng the turntable. Oil on the drive belt may cause irregular running of the turntable. If oil is present, wipe it off carefully with a soft cloth saturated with pure alcohol, available at any drug stor e. Fi g. 14

PIONEER PL-A25 OPERATING Owners Manual

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