Crest-ProSeries-om维修电路原理图.pdf
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1、PROFESSIONALPOWER AMPLIFIERSOWNERS MANUALIncluding MA Series AmplifiersCh B-10dB-3-6-10-15-30-80Ch A-10dB-3-6-10-15-30-808001 Professional Power AmplifierClip/LimitSignalTemp/DCActiveClip/LimitSignalTemp/DCActiveHIGHS-10dB-3-6-10-15-30-807301 Professional Power AmplifierLOWS-10dB-3-6-10-15-30-80Clip
2、/LimitSignalTemp/DCActiveCh B-10dB-3-6-10-15-30-807001 Professional Power AmplifierCh A-10dB-3-6-10-15-30-80Ch B-10dB-3-6-10-15-30-80Ch A-10dB-3-6-10-15-30-80MA9130 Professional Power AmplifierClip/LimitSignalTemp/DCActiveClip/LimitSignalTemp/DCActiveMA7120 Professional Power AmplifierCh B-10dB-3-6-
3、10-15-30-80Ch A-10dB-3-6-10-15-30-80Clip/LimitSignalTemp/DCActiveMA5850 Professional Power AmplifierCh A-10dB-3-6-10-15-30-80Ch B-10dB-3-6-10-15-30-80Clip/LimitSignalTemp/DCActiveCh B-10dB-3-6-10-15-30-806001 Professional Power AmplifierCh A-10dB-3-6-10-15-30-80Clip/LimitSignalTemp/DCActiveCh B-10dB
4、-3-6-10-15-30-804801 Professional Power AmplifierCh A-10dB-3-6-10-15-30-80Clip/LimitSignalTemp/DCActiveCh B-10dB-3-6-10-15-30-804601 Professional Power AmplifierCh A-10dB-3-6-10-15-30-80Clip/LimitSignalTemp/DCActive3301 Professional Power AmplifierCh A-10dB-3-6-10-15-30-80Ch B-10dB-3-6-10-15-30-8010
5、004 Professional Power AmplifierCh A-10dB-3-6-10-15-30-80Ch D-10dB-3-6-10-15-30-80Clip/LimitSignalTemp/DCActiveCh B-10dB-3-6-10-15-30-80Ch C-10dB-3-6-10-15-30-80Clip/LimitSignalTemp/DCActiveClip/LimitSignalTemp/DCActive10001 Professional Power AmplifierClip/LimitSignalTemp/DCActiveCh A-10dB-3-6-10-1
6、5-30-80Ch B-10dB-3-6-10-15-30-80Ch B-10dB-3-6-10-15-30-80Ch A-10dB-3-6-10-15-30-809001 Professional Power AmplifierClip/LimitSignalTemp/DCActiveRadioFans.CN 收音机爱 好者资料库1. Save the carton and packing materialeven if the equipment has arrived ingood condition. Should you ever needto ship the unit, use
7、only the originalfactory packing.2. Read all documentation before oper-ating your equipment. Retain all docu-mentation for future reference.3. Follow all instructions printed on unitchassis for proper operation.4. Do not spill water or other liquidsinto or on the unit, or operate the unitwhile stand
8、ing in liquid.5. Make sure power outlets conform tothe power requirements listed on theback of the unit.6. Do not use the unit if the electricalpower cord is frayed or broken. Thepower supply cords should be routed sothat they are not likely to be walked onor pinched by items placed upon oragainst t
9、hem, paying particular atten-tion to cords and plugs, conveniencereceptacles, and the point where theyexit from the appliance.7. Always operate the unit with the ACground wire connected to the electri-cal system ground. Precautions shouldbe taken so that the means of groundingof a piece of equipment
10、 is not defeated.8. Mains voltage must be correct andthe same as that printed on the rearof the unit. Damage caused by connec-tion to improper AC voltage is not cov-ered by any warranty.9. Have gain controls on amplifiersturned down during power-up to pre-vent speaker damage if there are highsignal
11、levels at the inputs.10. Power down & disconnect units frommains voltage before making connec-tions.11. Never hold a power switch in the“ON” position if it wont stay thereitself! 12. Do not use the unit near stoves, heatregisters, radiators, or other heatproducing devices.13. Do not block fan intake
12、 or exhaustports. Do not operate equipment on asurface or in an environment which mayimpede the normal flow of air aroundthe unit, such as a bed, rug, weather-sheet, carpet, or completely enclosedrack. If the unit is used in an extremelydusty or smoky environment, the unitshould be periodically “blo
13、wn free” offoreign matter.14. Do not remove the cover. Removingthe cover will expose you to potentiallydangerous voltages. There are no userserviceable parts inside.15. Connecting amplifier outputs tooscilloscopes or other test equipmentwhile the amplifier is in bridged modemay damage both the ampli
14、fier and testequipment!16. Do not drive the inputs with a signallevel greater than that required todrive equipment to full output.17. Do not connect the inputs / outputs ofamplifiers or consoles to any othervoltage source, such as a battery, mainssource, or power supply, regardless ofwhether the amp
15、lifier or console isturned on or off.18. Do not run the output of any amplifi-er channel back into another chan-nels input. Do not parallel- or series-connect an amplifier output with anyother amplifier output. Crest Audio isnot responsible for damage to loud-speakers for any reason.19. Do not groun
16、d any + (“hot”) termi-nal. Never connect a + (“hot”) outputto ground or to another + (“hot”) out-put!20. Non-use periods. The power cord ofequipment should be unplugged fromthe outlet when left unused for a longperiod of time.21. Service InformationE q u i p m e n tshould be serviced by qualified se
17、rvicepersonnel when:A. The power supply cord or the plughas been damaged;B. Objects have fallen, or liquid hasbeen spilled into the equipment;C. The equipment has been exposed torain;D. The equipment does not appear tooperate normally, or exhibits amarked change in performance;E. The equipment has b
18、een dropped, orthe enclosure damaged.22. To obtain service, contact your nearestCrest Audio Service Center, Distributor,Dealer, or Crest Audio at 201.909.8700(USA). All Professional Series power amplifiermodels are UL LISTED, except for:1000110004MA5850MA7120MA9130Important PrecautionsThis symbol is
19、 used to alert the oper-ator to follow important operating pro-cedures and precautions detailed indocumentation.This symbol is used to warn opera-tors that uninsulated “dangerous volt-ages” are present within the equip-ment enclosure that may pose a riskof electric shock.RadioFans.CN 收音机爱 好者资料库Crest
20、 Audio Pro Series Power AmplifiersPage 1Power Amplifier Owners ManualTable of ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Mounting . . . . . . . . . . . . . . . . . . . . . . .
21、. . . . . . . . . . . . 2Cooling Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 3Operating Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . 3Crest Audio Model 7301 Power Amplifier . . . . . . . . . . 3Crest Audio Model 10004 Power Amplifier . . . . . . . . . 3Models 330
22、1, 4801, 6001 Features . . . . . . . . . . . . . . . . 4Model 4601 Features . . . . . . . . . . . . . . . . . . . . . . . . . . 4Model 7001 Features . . . . . . . . . . . . . . . . . . . . . . . . . . 5Model 7301 Features . . . . . . . . . . . . . . . . . . . . . . . . . . 5Model 8001 Features . . .
23、 . . . . . . . . . . . . . . . . . . . . . . . 6Model 9001 Features . . . . . . . . . . . . . . . . . . . . . . . . . . 7Model 10001 Features . . . . . . . . . . . . . . . . . . . . . . . . . 8Model 10004 Features . . . . . . . . . . . . . . . . . . . . . . . . . 9Connecting Inputs. . . . . . . . .
24、. . . . . . . . . . . . . . . . . . . 10Connecting Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . 10Crest Audio Octal Sockets . . . . . . . . . . . . . . . . . . . . . 10NexSys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Connecting Power. . . . . . . . . . . .
25、 . . . . . . . . . . . . . . . . 11Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Bridging Precautions . . . . . . . . . . . . . . . . . . . . . . . . . 12Switches and Controls . . . . . . . . . . . . . . . . . . . . . . . . 12Indicators . . . . . . . . . . . . . . . . . .
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