Neve_BA712-BA713_Mic-Line-Tape电路图.pdf

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1、BA712/713 INFORMATION G E N E R A L 2S1!/!? l3 *? fi XGd to*ether to form a sandwich assembly at the top artlL? t I BSUXe- -They 3eleCt M?lifV the microphone, line,or tape inputs up to the nominal -lOdBu level used prefade SefS!M.S8? refulat?a the *0wer suPPlieB fr the whole channel module, RF fi lt

2、ers each input, and has a phase inversion facility. USER CONTROLS r?/LTn-/TinPUt Selection Phase, Mic gain (20dB to 80dB in 6dB steps)G a i n Tr i m ( O d B + 1 0 d B c o n t i n u o u s l y v a r i a b l e ) . s t e p s ; . DETAIL SEE ET1020T (Circuit Diagram) AND EB2036U (Channel module block diag

3、ram) S?er-left7hd *?* f EB236U 8hOWS the or Actions of the BA712/713 VSSS 1Q relatl0n to the rest of the channel strip. The circuit diagram nexistTrip?WS th * (enClSed in -dotted ll)PStiS2M0tla| inrth! SnJ?e0tiiO vCtren connectors on the PCB are shown as tie linesin the bottom left-hand table, if th

4、ey do not involve any circuitry. BRIEF DESCRIPTION Vocaf thfto? Ur- *f TS?e) e reCeived from * connectors ninnPhe f UB,.,*ifUr utputs e-selected by SI (LINE) on BA712 the ? S : d S S W l T h t h S c i u i t i n s i s t i n g o f R V l ,HA, and R2 on BA713 (which gives an attenuation of OdB to -20dB

5、with -lOdB 1 UltrrTl f0liWed by IC1C n M712 (vhich S-es lOdB of Sin).Trim (from IClc) or Tape outputs are selected by S3 (TAPE) which is mechanically interlocked with SI to give the following:- TnrJ.LINf TAPE Psed Mic selected 5 J S n ! y P r e 8 S e d : L i n e s e l e c t e d TAPE only pressed . T

6、ape selected LINE and TAPE both pressed (interlock defeated) : Tape selected ampliieialWhich8-diTtly t0 * V,?EASP d t0 a phase inverting i V ? * aXso connected to SI*. With PHASE impressed the T h e B A 7 1 2 / 7 % n n T t f * * * * t h e U t p U t mi J2 mi? f P2 +!1al 1S takeQ frm Sk and i3 CalledJ

7、 CHANNEL TO JESS iJSSi % J 1 z 3 a * 2 0 0 u m 0 5 t- u ! f I u t- u u J a 0 I M i c - O Rupert Neve n 1034-I N D U C T S 1 m H 4U3 rh J l_/ IS LJ P E O I 9 K O _ 3 S O r s u R E S S T O ( ? | % 8 V C O H M S r 21. RS %-2-. i l l ( 7 6 A 0 0 2 f c : 0E E S I 5 T O E . T J 3 4 - 6 S ) 2esSA,-7C0 n r e s T F - r Te i e h A i M A L - ef-vpm . (5)eo WA 17207 8 B A S O L D E I ? TA c S1 pF o i ? i - r e : r n s s 22 I . . I , . DRAWN. PART LIST No. PuOCCO SHT. A-.OFS , f CHECKED: f fh L ADHEl P/yM8 Rupert Neve !/048Rupert Neve & Company Ltd. t r s0 /$f!fi J