Bogen-M300-450-600-Operation-Manual 电路图 维修手册.pdf

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1、M-Class Amplif ier M300, M450, 70V Mo n o ; Dua l Mo n o ) tha t a re design ed to pro vide a wide ra n ge o f a ppl ica tio n co vera ge. Fo r a descriptio n o f the differen t m o des, see the Ope rat ion sec- tio n o f this m a n ua l . 8. Fan Exhaus t s Two in depen den t, va ria bl e speed co o

2、 l in g fa n s respo n d a s n eeded to keep the a m pl ifier co o l a n d reduce dust buil d-up. 9. 70V Mono S peaker Out put Fo r 70V co n sta n t vo l ta ge spea ker system s. Pro vides a sin gl e cha n n el o f a m pl ifica tio n . 10. Chas s is Gr ound Pro vides co n ven ien t a ccess to ea rth

3、 gro un d. 11. Lo-Cut S wit ch Sel ect a l o w-frequen cy ro l l -o ff o f 65 H z o r 125 H z fo r tra n sfo rm er-co upl ed a n d ho rn spea kers. Fl a t po sitio n a l l o ws ful l l o w-frequen cy perfo rm a n ce. 12. Module Bay Accepts o n e o r two Bo gen in put m o dul es (o n e m o dul e in c

4、l uded with a m pl ifier). 3 Ins t allat ion Ins t al l at i o n Co mpo nent s 1. R ack Ear s Prio r to in sta l l in g the a m pl ifier, yo u wil l n eed to a tta ch the in sta l l a tio n ra ck ea rs if yo u in ten d to in sta l l the a m pl ifier in a ra ck a n d co m pl ete the setup pro cess. R

5、em o ve the 6 fro n t m o st co ver screws o n ea ch side pa n el o f the a m pl ifier a n d a tta ch ra ck ea rs a s sho wn . 2. Dus t Filt er In sert the dust fil ter in to the fa n gril l e befo re a tta chin g the fa n gril l e to the a m pl ifier. Filt er Maint enance Dust fil ters a re pro vid

6、ed with the M-Cl a ss a m pl ifier to reduce the buil d up o f dust o n the hea t sin ks. Perio dic cl ea n in g sho ul d be do n e when there is a n o ticea bl e buil d up o f dust o n the fil ters. To cl ea n the fil ters, rem o ve them fro m the gril l es a n d wa sh, va cuum , o r ta p them o ut

7、. Pro m ptl y repl a ce them . Cau t i o n: The fan bl ades are acces s i bl e when t he gri l l e co ver and fi l t er are remo ved. Be carefu l no t t o pl ace y o u r fi nger o r o t her o bj ect s i nt o t he fan. 3. Fan Gr ille To in sert o r repl a ce the gril l es, first in sert the ta bs o n

8、 the wider en d o f the gril l e in to the n o tches in the fro n t, cen ter ca stin g. Sn a p the o ther en d o f the gril l e in to the sn a p sl o ts. Check tha t the gril l e is securel y in pl a ce. To rem o ve, pry the en d o f the co ver cl o sest to the ra ck ea rs up un til the sn a p ta bs

9、 disen ga ge. 4. Knob Cover To pro tect the a m pl ifier co n tro l s fro m ca sua l ta m perin g, the vo l um e l evel co n tro l s a re co n cea l ed behin d a rem o va bl e co ver. The co ver sn a ps in to pl a ce with ta bs a t the to p a n d bo tto m . To rem o ve the co ver, squeez e bo th en

10、ds o f the co ver, then gen tl y disl o dge the to p a n d then the bo tto m . Be ca reful n o t to tip the to p o f the co ver to o fa r fo rwa rd whil e rem o vin g o r the sn a p-in ta bs co ul d be da m a ged. To repl a ce, sim pl y sn a p it ba ck in to pl a ce. 4 Ins t allat ion Vent i l at i

11、o n The M-Cl a ss wa s design ed to be pl a ced o n a ta bl e o r ra ck-m o un ted. When ra ck m o un ted, the a m pl ifiers ca n be sta cked o n e o n to p o f the o ther fo r m a xim um use o f the ra ck. An o pen a ir spa ce o f a t l ea st 4 m ust be pro vided a t the fro n t a ir in ta kes o f

12、the a m pl ifier, a n d the rea r exha ust m ust ha ve a t l ea st a 4 ga p fro m a n y o bstructio n s to en sure a dequa te co o l in g. This applies t o bot h r ack- and t able-mount ed amplif ier s . Ca re sho ul d a l so be ta ken to en sure tha t the fro n t in ta ke a ir is n o t co n sidera

13、bl y wa rm er tha n the a m bien t a ir tem pera ture. Mo un t the a m pl ifiers l o w in the ra ck so tha t hea t dissipa tio n fro m o ther equipm en t do es n o t wa rm the a m pl ifiers in ta ke a ir. Rack Mo u nt i ng Ra ck ea rs a re in cl uded with the a m pl ifier to a l l o w m o un tin g i

14、n 19 ra cks. Atta ch the ra ck ea rs a s sho wn in the Inst allat ion Compone nt s sectio n . If a n y feet ha ve been a tta ched to the bo tto m o f the a m pl ifier, rem o ve them . L o a d the a m pl ifier in to the ra ck a n d secure it to the ra ck with a ppro pria te ha rdwa re (n o t in cl ud

15、ed). Rear Rack Mo u nt i ng Fo r grea ter rea r suppo rt when ra ck m o un tin g a n M-Cl a ss a m pl ifier, the RPK86 Ra ck Mo un tin g Kit (n o t in cl uded) ca n be a tta ched to the rea r o f the a m pl ifier by fo l l o win g the steps bel o w. 1.Rem o ve a n d sa ve the three co ver screws fro

16、 m the cha ssis o f the a m pl ifier. 2.Po sitio n the ra ck a tta chm en t a s sho wn . 3.Repl a ce a n d tighten the three co ver screws to secure the ra ck a tta chm en ts. Tabl e Mo u nt i ng Feet a re pro vided with the a m pl ifier to a l l o w it to be pl a ced o n a ta bl eto p. Atta ch the

17、in cl uded feet to the bo tto m o f the a m pl ifier a s sho wn . Atta chm en t o f the ra ck ea rs to the un it is o ptio n - a l a n d purel y a esthetic fo r ta bl e m o un tin g. 5 Rear of Amplifier Ins t allat ion Mo du l e Ins t al l at i o n Ins t allat ion Two in put m o dul e ba ys a re a v

18、a il a bl e to a ccept va rio us Bo gen in put m o dul es thereby a l l o win g users to custo m iz e the a m pl ifier to suit the n eeds o f the in sta l l a tio n . R ead t he ins t r uct ions included wit h t he module and make t he des ir ed jumper s et t ing changes bef or e ins t alling t he m

19、odule. The sl eep switch sho ul d be set to the desired po sitio n prio r to in sta l l a tio n o f the right m o dul e sin ce it wil l be co vered by the m o dul e (see Ope rat ion, Sle e p Mode De f e at ). The in put m o dul es a re in sta l l ed by sim pl y sl idin g them a l o n g the ca rd gui

20、des in side the m o dul e ba ys un til the fa cepl a te firm l y sits a ga in st the M-Cl a ss cha ssis, then use the two screws suppl ied with the m o dul e to secure it to the cha ssis. No t e:The in put m o dul e in cl uded with the a m pl ifier is pre-in sta l l ed a n d fa cto ry set fo r 0 dB

21、ga in (ca n a l so be cha n ged to 18 dB bo o st) a n d to be m uted by a n y o ther m o dul e (ca n a l so be set to “n o m ute”). To cha n ge tho se settin gs, refer to the m a n ua l in cl uded with the m o dul e. 6 Connect ions Speak ers Low-Impedance S peaker Connect ions When the a m pl ifier

22、is set to either the stereo m o de o r the Dua l Mo n o m o de (see Ope rat ion sectio n ), l o w-im peda n ce spea kers ca n be co n n ected to either the A o r B spea ker o utput term in a l s. The a m pl ifier is design ed to wo rk in to spea ker l o a d im peda n ces a s l o w a s 3.2 o hm s. The spea ker term in a l s ca n a ccept up to a #10 spa de l ug a n d ha ve in te- gra l cl a m pin g pl a tes which m a ke wirin g ea sier. The po l a rity o f ea ch set o f spea ker o utputs (A Exclus ion of Cer t ain Damages