Gallien-krueger_1001RB_Service_Manual电路图.pdf

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1、? ? RadioFans.CN 收音机爱 好者资料库 ? ? ? ?!?#$ ? %?%? ?1? ?-?. When disconnecting the power cord from an AC outlet, always pull the plug, never pull the cord. If you do not intend to use the amplifier for a considerable length of time, disconnect the plug from the AC outlet. 7?%?2?. There are no user-servi

2、ceable components inside this product. Opening the amplifier enclosure may present a shock hazard, and modification to the product will void your warranty. If liquid enters the unit, or any metal object such as a paper clip, wire, or staple accidentally falls inside the enclosure, disconnect the uni

3、t from the AC power source immediately and consult an authorized service station. :?5. The carton and packing materials used in shipping your new amplifier were specially designed to cushion it from the shocks and vibration that occur during transport. We suggest that you save the carton and packing

4、 materials for use in shipping, in the event you move, or the amplifier needs repair. ? ? ? ?. To insure proper operation and to avoid potential safety hazards, place the unit on a firm, level surface. When installing the unit in a rack, be sure the mounting hardware can support the amplifiers weigh

5、t. To save space in your rack, the 1001RBs feet can be removed using a Philips head screwdriver. Make certain that proper space is provided for ventilation. The 1001RB Series requires at least inch clearance above for proper ventilation. Never block the fan vent holes in the top or front of the ampl

6、ifier. If the amplifier will be installed in a rack or other enclosed area, make sure that there is sufficient air movement within the enclosure to allow proper cooling. Consult your dealer for more information. Avoid installation in extremely hot or cold locations, and areas that are exposed to dir

7、ect sunlight, or near heating equipment. Avoid moist or humid locations. Remember, power amplifiers generate heat. The heat sink fins and ventilation slots that form part of the enclosure are specially designed to remove this heat. Placing other electronic equipment near these heat- dissipation syst

8、ems may possibly affect the long-term reliability of both your amplifier and the other equipment. ?5?%?:?. Before moving the unit, be certain to disconnect any interconnection cords with other components, and make sure that you disconnect the unit from the AC outlet. ?5. When the unit gets dirty, wi

9、pe it with a clean, soft and dry cloth. If necessary, first wipe the surface with a soft cloth slightly dampened with mild, soapy water, followed by a fresh cloth with clean water. Wipe immediately with a dry cloth. Never use benzene, thinner, alcohol, or other volatile cleaning agents. Do not use a

10、brasive cleaners, as they may damage the finish of metal parts. Avoid spraying insecticides near the unit. ?. Your new amplifier is rugged. It was built to give you a lifetime of trouble-free operation, if it is operated in accordance with the instructions contained in this manual. The only maintena

11、nce required is cleaning. If you are going to move your amplifier around frequently, we recommend a road case to protect it from scratches and road wear. ? ? ? ? ? ? ?# ? !? ? An electronically balanced output, that you can run to your P.A. system. ? Selects the direct out signal from before or afte

12、r the EQ. ? Controls the level at the direct out jack. ? A standard ” input jack and input attenuator button. The button is generally left out, except in rare cases when the clip LED flashes. ? ?!? Set this switch to “On” when tuning up. No signal will be sent to the speakers, or the P.A. system. #?

13、$?%? Sets pre-amp gain after the input stage. It is used in conjunction with the input pad, to optimize the amplifiers headroom. ? Enables BI-AMP operation by connecting a GK-RBH Series cabinet with the provided 4 conductor Speakon cable. This connects the 50W amplifier allowing the Tweeter control

14、on the front panel to control the signal going to the horn. See Bi-Amp and Normal Operation on page 7 for more information. )? Do not connect a Speakon cable labeled “Bridge Mode” to the 1001RB. This may result in damage to the amplifier. ?!?. When a power amplifier is pushing several speaker cones,

15、 and a high-power transient like a string slap comes along, the amp has to tap into a large power reserve to maintain cone control. Its kind of like grabbing a swing at the bottom of its travel and trying to push it the other way - it could knock you over. If the amplifier doesnt have this ability,

16、the sound is unresponsive and less out front. The amp loses its punch and feel at higher playing levels. Instead of responding to your every command, the amplifier simply cuts those transients off, leaving you with the feeling that something is missing in your sound. Since most amplifiers have limit

17、ed output current capacity, they need “current limiting circuits” to protect against self-destruction. High-power tran- sients trigger these circuits, which rob the amplifier of its ability to control speaker cones. This creates a mushy, unresponsive feel to your sound. The 1001RB Series has extreme

18、ly high current capacity, so it doesnt need current limiting circuits for over-load protection. There is nothing in the 1001RB Series power amp to come between you and your sound except faithful, raw power. ?. Bass players have always liked the growl they get from slight overdrive. In GK amps this c

19、omes partly from the boost circuits and partly from the power amp. The problem is that growl, sounds great through woofers, and horrible through horns. In the typical full range system with a passive crossover, there is no way to get growl and keep the definition that the horn provides. The horn alw

20、ays has to be turned down. In a Bi-Amp system like the 1001RB Series, the woofer and the horn, each have their own power amp, allowing us to get growl in the woofer only, while keeping the horn sound crystal clear. Now you can over-drive the woofer as much as you want, and leave the horn all the way

21、 up, keeping the definition it brings to your sound. Running the 1001RB Series in Bi- Amp mode through a GK-RBH cabinet, for the first time allows full access to the benefits of Bi-Amp sound. This is the reason the 1001RB Series is a Bi-Amp, and it is the reason you will be able to explore an entire

22、ly new territory of Bass sound. In addition, running high power amplifiers like the 1001RB Full-Range into cabinets with passively crossed over horns can cause failure to the horn, attenuator or protection elements in the speaker cabinet. Running high power amplifiers as Bi-Amp rigs eliminates these

23、 problems. ?%? ? ? ? ? ? ? ? ? ? ? ?2? 2? ?. Bi-Amp systems allow the crossover to be electronic and therefore, have much higher quality than passive cross- overs. A crossover separates the sound into two parts (high and low frequency). The highs are sent to the horn or high frequency cabinet and th

24、e lows are sent to the woofer. In an ideal system, adding the highs and the lows back together would recover the original signal. Most passive Bass systems have very poor crossovers, resulting in severe signal corruption. When these signals are added back together (as in your ear), they have very li

25、ttle in common with the original signal. The 1001RB Series uses a Constant Voltage crossover which results in very little signal corruption. In fact, when the high and low signals are added back together, the result is extremely close to the original. This makes a two-way system sound more seamless,

26、 and less artificial. We have also included a Tweeter Hi-Cut switch in the crossover, which rolls the tweeter off above 10kHz giving it a less glassy, more cone like sound. 23?4?. The sound you want is in your head, but you just cant get it. You think its you, your bass or maybe your amp. Yes, your

27、amp. Standard tone controls and graphic equalizers dont get it. Sure, they give you plenty of variation, but they dont provide what the instrument really needs. The fact is, graphic equalizers are intended for room equaliza- tion, and are only put in bass amps because its a no- brainer for the desig

28、ner. The equalization in Gallien- Krueger amplifiers reflects 30 years of continuous development and refinement. The GK equalizer is unique to the industry, its not just a normal four band equalizer, each section is a special circuit optimized to perform a Bass specific job in its range of operation

29、. These sections are wired in Series, so they add to one another creating a tremendously flexible equalizer, that doesnt sound weird at any setting. You actually might even get to hear that sound in your head. ?%? 8?5?. Voicing filters are used to completely re-voice the amplifier. In the case of th

30、e Contour and String Bass controls, the effect is dramatic. The Contour control tunes between two different shaping circuits, with greatly different response. With the control all the way up, the low end is slightly boosted, the mids are dropped and the high end is pushed up. This is a response cont

31、our not available with a normal equalizer, and is only found in GK amplifiers. The way a Bass amp deals with the instrument low string is a critical part of its sound. In fact, a five string instrument requires an entirely different low end re- sponse than a four string instrument. No equalizer can

32、make the necessary adjustments to accommodate both, however the String Bass button on the 1001RB Series does just that. When it is out, the 1001RB is voiced like the 800RB (the worlds classic four string amp). Push it in and the 1001RB is voiced for five string instruments. For some playing styles y

33、ou may want it in, even with a four string instrumentat least now, you have a choice! ?-?8?2?%?5?. As in all GK pre-amps, the1001RB Series pre-amp incorporates what we call G.I.V.E (Gate Induced Valve Effect) Technology. We use field effect devices with the gate biased in a way that emphasizes the o

34、ptimum harmonic content of the signal. Working in concert with our unique Four Band Active Equalizer, and three stage Voicing Filter Section, G.I.V.E. technology produces a consistently pleasing bass tone. ? ? ?2? ?!?5?A?!?$?. The 1001RB Series uses a “dual rail power supply” that generates about ha

35、lf the heat of conventional amplifiers. Low output signals run off a low voltage supply, and high level signals run off a high voltage supply. This keeps the amp running a lot cooler and makes it much more reliable. To cool the amp when its being driven hard, weve designed a temperature sensitive fa

36、n cooling system. When the amp is under a light load, the fan is off or running at a low speed, reducing fan noise. As the amp works harder, the fan speed increases to keep everything cool. ? ?. The 1001RBs protection circuitry constantly monitors for unsafe operating conditions such as short circui

37、ts, miss- wired speaker cables, blown speakers, improper ventila- tion and incorrect speaker configurations. In addition, protection is provided during power up/down. If the 1001RB senses any unsafe operating conditions, the output signal is immediately muted and the power light changes to from Gree

38、n to Red. The amplifier will remain muted until the fault is removed. If the protection circuit activates while playing, turn the amplifier off and check the amplifier speaker output connections. Be sure that you are not exceeding the maximum recommend load described in this manual. Also, check to s

39、ee that you have connected the amplifier to your speakers as described in Bi-Amp and Normal Operation on page 7. If the problem persists, contact GK directly for advice. 0?1?. The 1001RB Series uses a high gain, high headroom, low noise input stage. It has such a large dynamic range (60v p-p) that v

40、ery few instruments can overdrive it. Even most basses with “active” electronics do not need the input attenuator to be set. The benefit to you is less hiss from your horn, and over all, much less noise. ? ?$?% To make use of the 1001RBs Bi-Amp feature you will need to use the four conductor Speakon

41、 cable (provided with the 1001RB head, and included with the combos for connection to the internal speaker) to connect to a GK RBH Series cabinet. This specially designed cable carries the signals for both amplifiers (540W Woofer Amp and 50W Tweeter Amp) to the speaker cabinet. Plus, they are the co

42、olest speaker connectors currently available. Below is a table describing the Speakon cable connections to the 1001RB head and combos. Speakon Pin # Signal WireColor 1+ 540W Woofer Amp +White 1- 540W Woofer Amp -Black 2+ 50W Tweeter Amp +Red 2- 50W Tweeter Amp - Green To obtain an additional 4 condu

43、ctor Speakon cable for use with the 1001RB please contact your local dealer or contact GK directly. ? ?5. You should now have a thorough understanding of how your new 1001RB Series amplifier works and what advantages it can offer you in getting “your” sound. We thank you for reading the Owners Manua

44、l and wish you the best of times! Please send us your comments via www.gallien- or email us at . ?%? ? ? ? ? ? ?&? 0+0#?% Output Power: 540W Amplifier540W 8 Ohms 540W 4 Ohms 50W Amplifier50W 8 Ohms 50W 4 Ohms Input Section: Maximum Input Level0.6V Rms With -10dB pad1.6V Rms Input Impedance1M Ohm Sen

45、d output impedance220 Ohm Return input impedance50k Ohm Tuner Output Impedance10k Ohm Direct Output Impedance500 Ohms Equalizer: Bass+10db 60Hz Lo-Mid+6db/-10db 250Hz Hi-Mid+6db/-10db 1kHz Treble+14db 7kHz Voicing Filters: String Bass Button+11db20Hz Contour+2db50Hz / -10db500Hz / +3db7kHz Presence+

46、9db10kHz CrossoverTriple pole constant voltage crossover at 5kHz Noise-90db referenced to 540W, “A” weighted CoolingContinuously Variable- Speed Fan Amplifier Protection: Full short circuit, thermal,& RF protection. Stable into reactive and mismatched loads. Five second muted warm-up. Dimensions (Hx

47、WxD): 3 1/2” x 17” x 8 ” (2 Rack Spaces) Weight: 18lbs Power Requirements: U.S.A./Canada120V/60Hz 880W (full power) 165W (average power) Europe230V/50Hz 880W (full power) 165W (average power) Japan100V/50Hz 880W (full power) 165W (average power) ? 1001RB BI-AMP BASS AMPLIFIER TURN-ON PROCEDURE SETUP: 1. Variac on zero 2. Top cover of amplifier removed (for