Bogen-GA6A-Operation-Manual 电路图 维修手册.pdf

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1、 2004 Bogen Communications, Inc. All rights reserved. Specifications subject to change without notice. 54-5757-03D 1503 Utility Amplifier GA6A Model Installation and Use Manual RadioFans.CN 收音机爱 好者资料库 CAUTI ON RI SK OF ELECTRI C SHOCK DO NOT OPEN NOTICE: Every effort was made to ensure that the info

2、rmation in this guide was complete and accurate at the time of printing. However, information is subject to change. WARNING: To reduce the risk of Fire or Electric Shock, Do Not Expose this apparatus to rain or moisture. Apparatus shall not be exposed to dripping or splashing and no objects filled w

3、ith liquids, such as vases shall be placed on the apparatus. WARNING: Only connect unit to AC mains outlet providing protective earthing connection. NOTE: Mains plug is used as disconnect device from the mains and shall remain readily accessible and operable. CAUTION: These servicing instructions ar

4、e for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. CAUTION: DO NOT INSTALL OR PLACE THIS UNIT IN A BOOKCASE, BUILT-IN CABINET, OR IN ANOTHER CONFI

5、NED SPACE. ENSURE THE UNIT IS WELL VENTILATED. TO PREVENT THE RISK OF SHOCK OR FIRE HAZARD DUE TO OVERHEATING, ENSURE THAT CURTAINS AND ANY OTHER MATERIALS DO NOT OBSTRUCT THE VENTILATION VENTS. Always follow these basic safety precautions when installing and using the unit: IMPORTANT SAFETY INSTRUC

6、TIONS 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean unit with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturers instructions. 8. Do not instal

7、l near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two bl

8、ades and a third grounding prong. The wide blade, or the third prong, are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10. Protect the power cord from being walked on or pinched particularly at plugs, con

9、venience receptacles, and the point where they exit from the apparatus. 11. Only use attachments/accessories specified by the manufacturer. 12. Unplug this apparatus during lightning storms or when not used for long periods of time. 13. Refer all servicing to qualified service personnel. Servicing i

10、s required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. CAUTION: TO PREVENT THE RISK

11、 OF ELECTRIC SHOCK, DO NOT REMOVE ANY FRONT/BACK COVERS OR PANELS. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructi

12、ons. The lightning flash with arrowhead symbol, within an equi- lateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. RadioFans.CN 收音机爱 好者资料

13、库 3 De scrip t io n The GA6A is a rugged six -w att, dual-inp ut audio am p lif ier w ith a w ide v ariety of sm aller ap p lic ations inc luding b ac k ground m usic , relay ing c om m unic ation f rom one room to another, or sound reinf orc em ent. The GA6A deliv ers rated p ow er at not m ore tha

14、n 1% total harm onic distortion f rom 75-15,000 Hz into transf orm er-c oup led or direc t low -im p edanc e loads. Inp uts f or a low -im p edanc e b alanc ed dy nam ic m ic rop hone and an aux iliary audio sourc e (tuner, CD p lay er, etc .) c an b e m ix ed. Indiv idual f ront-p anel c ontrols re

15、gulate the lev el of eac h inp ut. Connec tions f or 8-ohm and 25V or 70V sp eak er lines are p rov ided on the rear p anel outp ut term inal strip . A 3-p osition sw itc h is sup p lied to p rov ide 9 dB of treb le b oost or c ut at 10,000 Hz or f lat resp onse. Pack ag e Co n t e n t s (1) GA6A (1

16、) Installation and Use Manual Acce sso rie s WMT1A Mat ch in g Tran sf o rme r Hi-Z , 10k -ohm p rim ary im p edanc e Lo-Z , 600-ohm sec ondary im p edanc e, b alanc ed w ith c enter tap Matc hes high-to-low im p edanc e or low -to-high im p edanc e Adap ts line lev el signals to m ic rop hone inp u

17、ts RadioFans.CN 收音机爱 好者资料库 4 Pan e l De scrip t io n s Utility Amplifier Front Panel 1. MIC Co n t ro l - Regulates the lev el of m ic rop hone outp ut to sp eak ers. 2. AUX Co n t ro l - Regulates the lev el of the AUX sourc e to sp eak ers. 3. Po we r Swit ch - Controls AC p ow er to the am p lif

18、ier. Illum inates w hen ON. Utility Amplifier Rear Panel 1. Sp e ak e r Out p ut Barrie r St rip - Outp ut term inal strip p rov ides f or 8-ohm , 25V , and 70V sp eak er outp uts. 2.Sh o rt in g Lin k - Used w hen 25V or 70V sp eak ers are to b e c onnec ted to the GA6A. Must b e rem ov ed if 8-ohm

19、 sp eak ers are to b e c onnec ted to the GA6A. 3.Micro p h o n e Te rmin al - Inp ut term inal strip f or a b alanc ed low -im p edanc e dy nam ic m ic rop hone. 4. AC Lin e Co rd - 120V , 60 Hz , 0.15A line c ord term inated in a three-p rong p lug. 5.Tre bl e Co n t ro l Swit ch - A 3-p osition s

20、w itc h that c ontrols the ap p lic ation of 9 dB of treb le b oost or c ut at 10,000 Hz or f lat resp onse. 6.AUX In p ut - High-im p edanc e AUX RCA jac k inp ut. 5 Co n n e ct io n s 70V Excl usio n o f Ce rt ain Damag e s Power Output: 6 wa tts RMS Frequency Response: 30 Hz to 12 kHz +0 d B, -3

21、d B Total Harmonic Distortion: 1% ra ted output Power Bandwidth: 75 Hz to 15 kHz Inputs: Lo-Z MIC, b a la nc ed or unb a la nc ed ; AUX Sensitivity: MIC 0.3 m V ; AUX 0.2 V MIC Dynamic Range: 46 d B Hum and Noise: MIC -50 d B; AUX -64 d B b elow ra ted output Output Impedance/Voltage: 8 ohm s; 25V &

22、 70V line Tone Control: 9 d B treb le b oost a t 10 kHz , 9 d B treb le c ut a t 10 kHz Protection: Interna l T herm osta t Controls: MIC, AUX, illum ina ted POWER switc h Terminations: Outputs and Microphone term ina l strip Auxiliary RCA-type phono plug Power Consumption: 16W, 120V , 60 Hz Dimensi

23、ons: 8-1/2 W x 2-3/4 H x 6 D Shipping Weight: 6 lb . Sp e cif icat io n s The Bogen GA6A Ut il it y Ampl if ieris warranted to be free from defects in material and workmanship for two (2) years from the date of sale to the original purchaser. Any part of the product covered by this warranty that, wi

24、th normal installation and use, becomes defective (as confirmed by Bogen upon inspection) during the applicable warranty period, will be repaired or replaced by Bogen, at Bogens option, provided the product is shipped insured and prepaid to: Bogen Factory Service Department, 4570 Shelby Air Drive, S

25、uite 11, Memphis TN 38118, USA. Repaired or replacement product will be returned to you freight prepaid. This warranty does not extend to any of our products that have been subjected to abuse, misuse, improp- er storage, neglect, accident, improper installation or have been modified or repaired or a

26、ltered in any manner whatsoever, or where the serial number or date code has been removed or defaced. THE FOREGOI NG LI MI TED WARRANTY I S BOGEN S SOLE AND EXCLUSI VE WARRANTY AND THE PURCHASER S SOLE AND EXCLUSI VE REMEDY. BOGEN MAKES NO OTHER WARRANTI ES OF ANY KI ND, EI THER EXPRESS OR I MPLI ED

27、, AND ALL I MPLI ED WARRANTI ES OF MERCHANTABI LI TY OR FI TNESS FOR A PARTI CULAR PURPOSE ARE HEREBY DI SCLAI MED AND EXCLUDED TO THE MAXI MUM EXTENT ALLOWABLE BY LAW.Bogens liability arising out of the manufacture, sale or supplying of products or their use or disposition, whether based upon warra

28、nty, con- tract, tort or otherwise, shall be limited to the price of the product. I N NO EVENT SHALL BOGEN BE LI ABLE FOR SPECI AL, I NCI DENTAL OR CONSEQUENTI AL DAMAGES (I NCLUDI NG, BUT NOT LI MI TED TO, LOSS OF PROFI TS, LOSS OF DATA OR LOSS OF USE DAMAGES) ARI SI NG OUT OF THE MANUFACTURE, SALE

29、 OR SUPPL YI NG OF PRODUCTS, EVEN I F BOGEN HAS BEEN ADVI SED OF THE POSSI BI LI TY OF SUCH DAMAGES OR LOSSES.Some States do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal

30、 rights, and you may also have other rights which vary from State to State. Products that are out of warranty will also be repaired by the Bogen Factory Service Department same address as above or call 201-934-8500. The parts and labor involved in these repairs are warranted for 90 days when repaired by the Bogen Factory Service Department. All shipping charges in addition to parts and labor charges will be at the owners expense. All returns require a Return Authorization number. For most efficient warranty or repair service, please include a description of the failure. 11/2014