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Summary of Contents for A-900

Page 1: ...hes per second and 3 4 inches per second Using both tracks the recording time is as follows Reel Size 5 600 ft 1200 ft HCDWARD W SAlUtS The lieting of any available replacement part herein does not co...

Page 2: ...system Also can be used as variable InSTOP position both serve as low level inputs outputs for feeding external amplifier or built for using the recorder as a complete amplifier in Hi Fi systems For s...

Page 3: ...Acoustically baffled with On Off monitoring switch Chassis Heavy aluminum fully shielded Signal To Noise Ratio 40 db minimum Bias Frequency 80r000 cycles for distortion free recording Tone Controls T...

Page 4: ...d Stacked in Iine combined t 4 or L 2 ftack fully shielded 0002 gaps Motor Dyn a m i c all y balanced vibration free Heavy duty constant speed 4 pole shaded l 00 rpm Contains lifetime self aligned sel...

Page 5: ...cks provide a connection for external speakers When external speakers are used the in ternal speakers are automatically disconnected Sing A Long By inserting the microphone plug into the Sing This but...

Page 6: ...o or three turns to secure the tape to the reel Note Do not route tape around tape post To Record From Microphone 1 Insert the microphone plug into the MIC jack 1o cated on the rear Panel 6 2 With the...

Page 7: ...cording was made 3 Place SPEAKER MOMTOR control in the bn position 4 Adjust the RIGHT and LEFT VOLITME and TONE controls for desired listening level Sing A Long Use With Phono 1 Place a record on the...

Page 8: ...ad is ad justed by bending the pressure pad spring 35 Ad just for minimum pressure against tape Erase Head Adjustment 1 With tape properly thr eaded turn r ecorder bn and depress the RECORD button All...

Page 9: ...bearing 3 Pressure roller 67 bearings 4 All idler and drive wheel bearings 5 The reel pan bearings The basic rule is do not over lubricate Oil mustbekeptoff all rubber idlers belts and periphery of fl...

Page 10: ...V H r sj Y c ib ii l li tl i t4t A t I tit L Cr tt rl t I lt ri I r L_l e Y II hRI v p 6 A PHOTOFACT EXPLODED VIEW Howrtd V Srmr Co lnc l96l E I PH N II 4_ Fig 6A Exploded vierv of parts above basepla...

Page 11: ...C I o bt gi o E m F Tl c r t3 1 7 tl tl O D oc 3c ltt D D M 6 d A PHOTOFACT EXPLODED VIEW oHowrrd V Srmc Co lnc l96l Fig 6 B Exploded visrt 0f parts below baseplate...

Page 12: ...s l volt on meter Turn play record head ad justment screw 57 Fig 2 until manimum point of deflection on meter is obtained TROUBLE CHART Symptom Cause Remedy Push buttons fail to latch into position 1...

Page 13: ...n shaft or pressure roller 6 1 Clean as described un der Cleaning No erase or erase is in complete 1 Erase head tension spring 40 discon nected or broken 2 Erase head 52 not adjusted properly 1 Connec...

Page 14: ...Fig 9 Bottom view of amplifier showing capacitor locations t4 Fig 10 Bottom viav of amplifier showing resistor locations...

Page 15: ...a U e o ro 6t o roe c o a E o U 2 o o u e c o ts N ae E o N 6 y z o N 3 x E E 4 tgl v o N N A eEl NE NE 6 N k N z F G a z e o U J ct o E Y o F d il o E o c r J g J lll o66 FzF a z _ do H o zc frE v a...

Page 16: ...43 n u eaz r 44 I 57 343e 0 I 45 e sz aoo 46 I 48 410 1 47 I e z z6o 48 I e sr e z 4s I e rs rato r 50 sz ros ers o 51 I Zr ZZSr e iz I c ss zso 53 a as rzrs 54 I 57 1C 603 1 I ut I n ro zs I as I sz...

Page 17: ...io ti o I llt F c 35 1 3 5 1 c 35 1 3 6 1 c 35 L417 2 c 35 1450 1 B 19 864 2 20 2089 1 c 30 363 1 33 630 1 33 6 30 2 48 1C 20 0 48 2151 48 2220 r 5 43C 608 4 57 43C 8 20 0 57 46c 612 4 5 66A 508 4 57...

Page 18: ...Cond 1 4 Bushing Part No Description 503 195 1 514 8 2 c 35 1 384 2 B 31 495 B 32 483 8 2500 1 c 35 1444 1 c 35 1445 1 1 33 572 1 48 221 3 1 57 44C 816 4 73 2240 L16 73 2243 70 48 21 51 57 3549 0 145...

Page 19: ...o z i 8x E F B rao rq cd F o z z o J z 59 oA d d F oz 5 H 5 I u i tF d F c OF A i2 z3 U o iz OF Et pd o l EE o o z F 2 itniln Ex _d tQ PAGE T9 z 5 Hc o 5E o toooo o R a araassDail s AE R BBB fr r x n...

Page 20: ...f tr tr o I Y la z o F c e I la ut o a z F ta I J la F 4 o q F o z o z a 2 6ft o Fa z E i oo o EE AA N J4 fr F o z 5F ir 5A s6 o 4Z E x o z G JJ b 6b ie 5 f A 3 o I o 3 d l T e o vl z c o z F F z NN...

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