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Please do not offer the downloaded file for sell only use it for personal usage. Looking for other manual? For this no need registration. May be help you to repair. You could suffer a fatal electrical shock. Instead, contact your nearest service center. Note! To open downloaded files you need acrobat reader or similar pdf reader program. In addition, Also some files are djvu so you need djvu viewer to open them. These free programs can be found on this page: needed progs If you use opera you have to disable opera turbo function to download file. If you cannot download this file, try it with CHROME or FIREFOX browser. Translate this page: Relevant AUDIO forum topics: Ecler Pam880 szimmetria beallitas MEGOLDVA Sziasztok! Adott egy Ecler Pam 880 vegfok. Osszes fet, meghajto, elegett ellenallas, stb cserelve lett. El is indul, de nagyon magas a nyugalmi aram. (300mA kb) Ennek kovetkezteben a meghajto feteknel levo feszultseg ertekek sem stimmelnek. A rajz fent van itt a tanyan. Szinte ugyan az, mint a Pam 960 es tarsai. Ugyan azok a tipusu alkatreszek kerultek beepitesre, mint amik voltak benne. Kerdesem az lenne, hogy R111 novelesevel tovabb csokkentheto lenne-e a nyugalmi aram es ez megoldas lehetne-e a problemamra, vagy valami mas problema van. Sajnos fetes erositokben nem igazan vagyok jartas. Similar manuals: You can write in English language into the forum (not only in Hungarian). By using this website and agreeing to this policy, you consent to Ecler Neec Audio Barcelona S.L. use of cookies in accordance with the terms of this policy. The information is then sent back to the server each time the browser requests a page from the server. This enables a web server to identify and track web browsers. Search results for: (found: ) ask for a document File Date Descr Size Popular Mfg Model: Found in chassis2model: Found in repair tips. I have little experience of Ecler gear, and none of that includes their amps, but they seem to make good stuff.
Ecler everywhere, walls dripping sweat, foam all over the place, they just kept on going. Remember how hot it is in Spain, Spanish amps.Something like Class D. Very light weight? My guess is they are not optimal for Highs. But hey. I dont know how far the technology has come. Stay up to date with Roland news, artists, promotions, events, and more. Provides an overview of key features, functions and operational tips. The Roland Worldwide Social Network keeps you connected to the latest products, exciting events, and much more.
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A rajz fent van itt a tanyan. Szinte ugyan az, mint a Pam 960 es tarsai. Ugyan azok a tipusu alkatreszek kerultek beepitesre, mint amik voltak benne. Kerdesem az lenne, hogy R111 novelesevel tovabb csokkentheto lenne-e a nyugalmi aram es ez megoldas lehetne-e a problemamra, vagy valami mas problema van. Sajnos fetes erositokben nem igazan vagyok jartas. Similar manuals: You can write in English language into the forum (not only in Hungarian). Build quality was great, sound was good for mid and top, but I remember describing them as gutless for bass.Ecler used to be a subsidiary of Martin Professional. Whether you need hard copy service manuals or digital versions (available in CD-ROM and.PDF formats), ServiceManuals.net has the information you need in the format you need it. Each service manual is complete with schematic designs, parts lists and adjustments, all according to the manufacturer’s requirements. Just search for the make and model you need on ServiceManuals.net. If appears, then the manual is available for immediate download and you will receive the information right after placing your order We will then attempt to locate the service manual for you and in most cases get back to you within 24 hours. Lost your password? USER MANUAL trusting on us and choosing our amplifier DPA SPM (All purpose) (Switching Power Mosfet).View and Download Ecler DPA600 user manual online. Other Media Files: Ecler DPA 2000 Ecler Dpa600, 1000, 1400, 2000 Service Manual. When operating on BRIDGED. EPO4-99 Power Module. Functioning description. Due to the high 14 1 FCMANPAM2000 USER MANUAL.Login here. This is due to the breakdown voltage limit on P-channel MosFET's, witch is 200V. This final stage is formed by several-shunted MosFET's, where those of the positive branch are common-drain configured, and the negative branch is mounted in common-source configuration.
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The system's controlling device is a NE5534-type operational amplifier, witch is internally compensated in order to obtain gain levels equal or higher than three. The amplifier's feedback is given by a resistor and a capacitor associated to the operational amplifier's non-inverting input. Transistors BF587 and BF588 are common-base configured, forming a current supply structure. This specific transistor type is used because of the higher Vce voltage level required by this design. They perform simultaneously two functions: they polarize the MosFET's gate-source junctions, keeping them on the conducting edge, and they transfer the OpAmp's output voltage variations referred to signal ground. The signal variations normally reflected by Q103 and referred to the positive power supply, are now needed to be floating variations, and referred to the outputs. This function is done by Q105-106 (BF588), witch are mounted forming a Wilson-type mirror current supply. This mirror current supply transfers all of the current variations detected while descending through Q105's collector, to similar variations on Q106's collector also downward current. Resistors R124 and R132 are used to balance the current mirror, in order to avoid the use of transistors with forcibly the same beta value. C116 and C119 suppress their resistance when high frequency signal is processed. Diodes D107 and D108 avoid the transistors to get saturated, and R128 eliminates the loads on BF588's bases (Baker Circuit). The system requires about 12Vdc additional voltage upon the usual Vcc level, this allows a correct saturation and a symmetric clipping at the higher MosFET's. The correct polarization current value is adjusted by a 4K7 potentiometer connected to the BF transistor's emitter. This adds an additional current to the current source output on the BF transistor's loading resistors.
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In order to maintain the appropriate stand-by current level against varying temperature conditions, BD437-type transistors are used. As they have a particular temperature-depending base-emitter voltage curve, this voltage is used to keep a correct voltage reference for the current supply. As the temperature rises, the reference voltage level decreases, the gate-source voltage also decreases and, finally, the bias current also decreases. Transistors Q107 and Q108, and their corresponding twins at the lower branch, form a current-buffering circuit witch allows a fast charge and discharge of the power MosFET's gates.To avoid the presence of DC voltage on the output, a diac-triac based system is used, witch shorts the output to signal ground in case the DC level reaches the diac's triggering value. To avoid this to happen when processing correct signal (sine waveform, music.), the diac obtains its reference level from a filtering network formed by a 100K resistor and a 1F capacitor. The protections circuitry overhauls the MosFET's power consumption. Basically, this circuitry consists of two important sections: MosFET's Id current monitoring, and MosFET's Vds value detection. When the MosFET's Id level rises above a certain level, transistor Q115 (controlling transistor) conducts and decreases the BF transistor's loading resistance, thus reducing also their gate-source voltage and, finally, lowering the Id current value. This system is helped by a delayed performance, due to the associated circuitry to Q117 and C140. This capacitor starts to charge when a current level above the allowed value is detected, and the protection starts. The greater is the capacitor's charge level, the higher is also the voltage applied to Q115 controlling transistor's base, increasing its conduction and, consequently, reducing the gate-source voltage and thus the Id current value. This system uses a feedback network.
The delay used is necessary to avoid clipping the processed signal's dynamic range, witch should result in the typical clipping noise. In the negative branch, the protection circuitry is associated to control transistor Q116. STANDBY CIRCUITRY. This circuit maintains the Output shutdown relay closed for about 10 seconds, and thus annulated any current through the MosFET's during this period, just until the whole system's power supply voltage reaches its stable level. By this system, we avoid to hear through the loudspeakers any possible annoying noise proceeding from the system's start-up. As this cell charges, its voltage increases until reaching the 40106-type Schmidt trigger (IC107) switching value; at this point, the relay opens and the amplifier starts to function normally. During a short period of time, BC817-type transistor Q122 acts like a switch, shunting two 750 ohm resistors to C152. Moreover, the amplifier includes some other additional features, like: Volume control by a VCA system. An ANTICLIP system. A Temperature control system. 52-0014-0100 EP08-00.doc 3 of 3 The ANTICLIP system. When the amplifier reaches clipping levels, the operational amplifier looses control on the system's performance and at its output some Vcc voltage peaking pulses may appear, proceeding from its power supply. This peaking pulses are used to be rectified and sent to an optocoupler (IC111), witch varies the system's VCA control voltage as a function of those pulse's amplitude, creating a negative feedback witch should pull back the system into stable functioning area. The Temperature control system has three main functions: Controlling the cooling fan speed, as it is a function of the measured temperature. The fan's operation voltage range is 7 to 4 Volt. Suspending the amplifier's functioning when the temperature exceeds 90C The temperature control system consists on a LM35D-type IC, an amplifier, a comparator for the thermal probe and a 7805-type IC to feed the cooling fan.
The amplifier acts on the cooling fan speed control. The comparator is responsible for the output shutdown relay performance, in order to close it as the temperature reaches 90C, and thus cutting of the amplifier's MosFETs bias current. As this happens, the signal output of the whole unit is cutted off. This is a very low noise operational, especially designed for very high quality applications in professional audio equipment, control equipment and telephony channel amplifiers. The operational is intern. Page 5 2 bias current adjust the bias current adjust is performed through the variable resistor connected between the emitters of the current sources r110 (5k ? ). It delivers a supplementary current (it does not go through the operational) which simultaneously increases the voltage which falls in the rc l. Page 6 3 symmetry adjust the threshold voltage varies much, even between mosfets of the same kind. When connecting them in parallel we must be careful that they all have the same conduction current if we want equal currents circulating in all of them. If the conduction voltage of p an n channels mosfets is. The gate is protected by a zener, preventing a possible overload during an unexpected change from overload to r. Page 8 5 q123, together with the resistances which make the base divider, configure the current detector (this divider takes its voltage from one of the source resistances of a n mosfet, which is proportional to the current circulating through itself). The threshold separating zone a from zone b is determi. Page 9 6. Page 10 7. Page 11 8 zobel network this circuit tries to get a constant load impedance for the power module, in spite of the amplifier's load and frequency, to avoid phase shifting of the feedback signal. The values have been experimentally calculated through a study with square signal by trying to minimize the power. It is made with a comparator per channel (l-r), resident in the same ic306.
Both share a reference voltage provided by d306 (tl431a), which. Page 15 12 dc out circuit the circuit shown in the figure corresponds to the dc out of channel l. The goal of this circuit is protecting the loudspeakers when, because of a module fail, there is some dc appearing at the output. The voltages indicated in the figure correspond to rest state and they are given. Page 16 13 clip circuit the other half of ic307(4001) is used in the clip circuit. Given that we have two gates more and we just need one for our purposes we will connect them in parallel for a higher output current and a more effective led lighting up. This circuit starts working when the ac current from the transformer secondary disappears or, what is the same, when we turn the power amplifier off by pushing the power off switch, actually disconnecting it from mains. Circuit operation: t. Page 18 15 binary counter hef4520 this is a 4-bit double binary counter. Configured in a way in which when there is the binary code equivalent to decimal number 5 at its output -so this is 1 0 0- it is blocked in this position, until it receives a new mr reset pulse. The blocking action is performed by the. Page 19 16. Page 20 17 standby monostable the only thing left is the function of the monostable made of ic310 (4538). Like the counter and the monostable ic311 (4538), this circuit is connected to the protect signal, too.Page 67 Professional pam series - testing rules preliminary ground link testing. - verify that when the switch is at the on position there is continuity between the chassis ground and the speakers ground terminal and that the opposite happens at the off position. Leave it at on. - put the power amplifier in. We must get the same signal output for the actual load at any of the frequencies.Set the frequency at 50khz; the output level should not decrease more than 1 or 2 db and there should not be any noticeable distortion.
Page 69 Professional pam series - quality control we will use a mixer with balanced output -if possible- and a nominal output level of 1v as the signal source for test purposes. Connect the mixer outputs to the power amplifier inputs. Plug the power amplifier to mains (make sure its specified voltage matche. Page 70 Technical characteristics pam2600 pam2000 frequency response at max. Tim 100 signal noise ratio from 20hz to 20. Page 106 Parts list: power circuit and short circuit protection model:pam2000 drw.N? 33.0129pl rev: date: 000621 sheet 2 of 3 replaced by: reference value ic105 lm35d j101 faston 6.3mm j102 faston 6.3mm j103 faston 6.3mm j104 b3p-vh j105 b3p-vh j107 b5b-xh j108 b5b-xh j109 2600-3ts q101 bf871 q102 bf872 q10. This amp is a serious piece of kit and has just been fully serviced. My sole reason for sale is that I am upgrading my entire P.A system to 18,000 watts of amps, and this will be surplus to requirements. This is a great amp, which is really well built using Mosfet Design Technology and packs a serious punch. It could also be used to power stage monitors. Collection only due to weight. Paypal or Cash on Collection. Contact must be made within 24 hours of the end of auction. If you have any questions, please.