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- PAM2000
- Service Manual
Ecleree PAM2000 Service Manual
Summary of PAM2000
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Pam2600/2000 service manual.
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Service manual pam2600/2000 index - block diagram - functioning description - schematics - components location schema - testing and quality control - technical characteristics - wiring diagram - configuration diagram - mechanical diagram - packing diagram.
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1 module circuit 11.0504b operation - description the control element is the operational ne5534. 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...
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2 bias current adjust the bias current adjust is performed through the variable resistor connected between the emitters of the current sources r110 (5k Ω ). It delivers a supplementary current (it does not go through the operational) which simultaneously increases the voltage which falls in the rc l...
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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...
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4 this resistance performs a negative feedback on the gate, lowering down the vgs, relating to the drain current; like this: vgs = vgg - id*rs the higher the id, the lower the vgs voltage. The gate is protected by a zener, preventing a possible overload during an unexpected change from overload to r...
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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...
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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 ...
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9 protection circuit 11.0411 operation - description the circuit is configured by: - a power supply. - a thermal probe dc amplifier. - a temperature detector. - a dc out detector per channel. - a clip circuit per channel. - a reset (turn off/turn on) circuit. - a binary counter per channel. - two mo...
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10
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11 temperature detector this circuit is calculated to operate over the output relay opening it if any of both modules' temperature excedes 90ec, approximately. 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 ...
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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...
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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. The clip threshold or point where we want the led to l...
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14 general reset circuit (turn off/turn on) turn off reset. 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...
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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 ...
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16.
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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. Its output is "1" in rest state and becomes "0" during an approximate time of 1.3 seconds, which i...
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Parts list: power circuit and short circuit protection model:pam2600 drw.Nº 33.0130pl rev : a date: 000621 sheet 1 of 4 replaced by: reference value c101 47µ/100 c102 c100n c103 10µ/50 c104 10µ/50 c105 c15p c106 c100n c107 c100n c108 c100n c109 c56p c110 c56p c111 47µ/100 c112 47µ/100 c113 100n/400 ...
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Parts list: power circuit and short circuit protection model:pam2600 drw.Nº 33.0130pl rev : a date: 000621 sheet 2 of 4 replaced by: reference value ic103 4n35 ic104 4n32 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 q...
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Parts list: power circuit and short circuit protection model:pam2600 drw.Nº 33.0130pl rev : a date: 000621 sheet 3 of 4 replaced by: reference value r121 10 Ω /.5 r122 1 Ω /.5 r123 1 Ω /.5 r124 w.22 Ω /5 r125 w.22 Ω /5 r126 w.22 Ω /5 r127 w.22 Ω /5 r128 w.22 Ω /5 r129 w.22 Ω /5 r130 330 Ω /.5 r131 3...
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Parts list: power circuit and short circuit protection model:pam2600 drw.Nº 33.0130pl rev : a date: 000621 sheet 4 of 4 replaced by: reference value r179 22k r180 1k8 r181 1k8 r182 mf3k65 pc 11.0504b printed circuit wire black 90mm whit ter..
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Parts list: power circuit and short circuit protection model:pam2600 drw.Nº 33.0130pl rev : date: 000621 sheet 1 of 4 replaced by: reference value c101 47µ/100 c102 c100n c103 10µ/50 c104 10µ/50 c105 c15p c106 c100n c107 c100n c108 c100n c109 c56p c110 c56p c111 47µ/100 c112 47µ/100 c113 100n/400 c1...
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Parts list: power circuit and short circuit protection model:pam2600 drw.Nº 33.0130pl rev : date: 000621 sheet 2 of 4 replaced by: reference value ic103 til112 ic104 4n32 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 q...
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Parts list: power circuit and short circuit protection model:pam2600 drw.Nº 33.0130pl rev : date: 000621 sheet 3 of 4 replaced by: reference value r121 10 Ω /.5 r122 1 Ω /.5 r123 1 Ω /.5 r124 w.22 Ω /5 r125 w.22 Ω /5 r126 w.22 Ω /5 r127 w.22 Ω /5 r128 w.22 Ω /5 r129 w.22 Ω /5 r130 330 Ω /.5 r131 330...
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Parts list: power circuit and short circuit protection model:pam2600 drw.Nº 33.0130pl rev : date: 000621 sheet 4 of 4 replaced by: reference value r179 22k r180 1k8 r181 1k8 r182 mf3k65 pc 11.0504b printed circuit wire black 90mm whit ter..
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Parts list: input circuit model : pam2600/2000 drw. No 33.0127pl rev: date: 050995 sheet 1 of 1 replaces: replaced by: reference value j501 b4p-vh j502 ykf52-5003 j503 ykf52-5005 pc 11.0538 printed circuit.
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Parts list: potentiometers circuit model : pam2600/2000 drw. No 33.0128pl rev: date: 150295 sheet 1 of 2 replaces: replaced by: reference value c201 220p c202 220p c203 c15p c204 c8p2 c205 10µ/35 c206 220p c207 220p c208 c15p c209 c8p2 c210 10µ/35 c211 47µ/25 c212 47µ/25 c213 c100n c214 c100n c215 c...
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Parts list: potentiometers circuit model : pam2600/2000 drw. No 33.0128pl rev: date: 150295 sheet 2 of 2 replaces: replaced by: reference value r215 56 Ω r216 w1k2/4 r217 w1k2/4 r218 mf1k00 r219 mf23k7 r220 mf23k7 r221 mf1k00 r222 mf340k r223 1k5 r224 mf1k00 r225 mf47k5 r226 mf47k5 r227 mf1k00 r228 ...
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Parts list: led circuit model : pam2600/2000 drw. No 33.0125pl rev: date: 180595 sheet 1 of 1 replaces: replaced by: reference value d701 red d702 red d703 1n4148 d704 1n4148 d705 yellow d706 red d707 1n4148 d708 red d709 1n4148 d710 yellow d711 green d712 green j701 b6p-vh j702 b6p-vh j703 b3p-vh r...
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Parts list: soft start and power circuit model : pam2600/2000 drw. No 33.0126pl rev: date: 050995 sheet 1 of 2 replaces: replaced by: reference value c801 2µ2/63 c802 2µ2/63 c803 47µ/100 c804 47µ/100 c805 10n 400v c806 2µ2/63 c807 2µ2/63 c808 47µ/100 c809 47µ/100 c810 10n 400v d801 1n4007 d802 1n400...
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Parts list: soft start and power circuit model : pam2600/2000 drw. No 33.0126pl rev: date: 050995 sheet 2 of 2 replaces: replaced by: reference value r812 w39 Ω /8 r813 w39 Ω /8 r814 w39 Ω /8 wire8 blue/430mm wire9 brown/430mm wire9 brown/430mm wire9 brown/430mm.
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Parts list: protections circuit model : pam2600/2000 drw. No 33.0123pl rev: date: 070795 sheet 1 of 4 replaces: replaced by: reference value ac fast.2.8 ac fast.2.8 c301 2200µ/35 c302 10µ/50 c303 10µ/50 c304 100n c305 10µ/50 c306 10µ/50 c307 100n c308 100n c309 470n c310 470n c311 10µ/50 c312 10µ/35...
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Parts list: protections circuit model : pam2600/2000 drw. No 33.0123pl rev: date: 070795 sheet 2 of 4 replaces: replaced by: reference value fan fast.2.8 gnd fast.2.8 ic301 7805 ic302 7805 ic305 lm358d ic306 lm358d ic307 hef4001b ic308 hef4011b ic309 hef4520b ic310 hef4538b ic311 hef4538b ic312 hef4...
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Parts list: protections circuit model : pam2600/2000 drw. No 33.0123pl rev: date: 070795 sheet 3 of 4 replaces: replaced by: reference value r306 7k50 r307 90k9 r308 15k r309 10k r310 1k r311 2k7 r312 1k27 r313 604 Ω r314 10k r315 1k r316 2m2 r317 2m2 r318 5k6 r319 5k6 r320 332k r321 332k r322 590k ...
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Parts list: protections circuit model : pam2600/2000 drw. No 33.0123pl rev: date: 070795 sheet 4 of 4 replaces: replaced by: reference value r362 100k r363 100k r364 100k r365 39k r366 39k r4 6k8 r5 6k8 r6 0 Ω r7 0 Ω r8 6k8 r9 6k8 screw m3x8 din7985 nine screw m3x8 din7985 nine washer ade m3 washer ...
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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...
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Frequency response 0.5v input signal. Verify frequency response at 20hz/2khz/20khz. 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....
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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...
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Technical characteristics pam2600 pam2000 frequency response at max. Power output. 7hz to 60khz +0 -1db harmonic distortion+noise from 20hz to 20khz meas.Band intermodulation distortion (smpte) using frequencies of 50hz and 7khz at 4:1 ratio, nominal power. Tim 100 signal noise ratio from 20hz to 20...
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Parts list: mechanical diagram model : pam2600/2000 drw. No 30.0042pl rev: date: 060795 sheet 1 of 1 replaces: replaced by: quantity value 18 screw m4x6 spanlo din7985 6 screw m4x20 allen din912 8 screw m4x12 spanlo din965 16 screw m3x9 spanlo din7985 8 metal washer 3.2x6x1 4 insulant r19 2 cardboar...
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Parts list: assembly filter capacitor model : pam2600/2000 drw. No 30.0043pl rev: date: 130796 sheet 1 of 1 replaces: replaced by: quantity value 1 chassis wd.00.2063 8 wrap-it-ties t-50-l 2 ground wd.00.2098 4 screw m5x10 din933e 4 metal washer m5 ade 1 ground wire7 4 capacitors 22000µ/100v (pam260...
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Parts list: assembly rectifiers and soft start circuit model : pam2600/2000 drw. No 30.0044pl rev: date: 140795 sheet 1 of 1 replaces: replaced by: quantity value 1 assembled chassis wd.00.2063 1 chassis wd.00.2062 1 assembled soft start circuit 11.0539b 6 miniature support msp-4n 2 screw m4x20 din7...
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Parts list: mechanical power supply diagram model : pam2600/2000 drw. No 30.0045pl rev: date: 180795 sheet 1 of 1 replaces: replaced by: quantity value 1 assembled chassis 2063 and chassis 2062 12 screw m4x6 spanlo din7985 4 metal washer m4 ade 2 transformer 64ad211 (pam2600) 2 transformer 51ad180 (...
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Parts list: mechanical diagram rev: d model:pam2600/2000 drw.Nº 300046pl replaces: date: 200599 sheet 1 of 1 replaced by: quantity descript 8 screw 5.1x20 din cl81z 43 screw m4x6 spanlo din7985 8 screw m4x12 din965 4 screw m4x12 spanlo din965 1 screw m4x12 din7985 10 screw m3x12 din966 10 screw 2.9x...
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Parts list: mechanical diagram rev: c model:pam2600/2000 drw.Nº 300046pl replaces: date: 200599 sheet 1 of 1 replaced by: quantity descript 8 screw 5.1x20 din cl81z 43 screw m4x6 spanlo din7985 8 screw m4x12 din965 4 screw m4x12 spanlo din965 1 screw m4x10 din7985 10 screw m3x12 din966 10 screw 2.9x...
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Parts list: mechanical diagram model : pam2600/2000 drw. No 30.0046pl rev: date: 050995 sheet 1 of 1 replaces: replaced by: quantity value 8 screw 5.1x20 din cl81z 43 screw m4x6 spanlo din7985 8 screw m4x12 din965 4 screw m4x12 spanlo din965 1 screw m4x12 din7985 4 screw m3x12 din966 10 screw 2.9x6....
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Parts list: packing diagram model : pam2600/2000 drw. No 32.0014pl rev: date: 260795 sheet 1 of 1 replaces: replaced by: quantity value 4 metal washer 5x11.5x0.8 4 washer at 5x11.5x3.5 abs black 2 fuse t16a 1 standard box 528x215x623 4 polyurethane protecting half (m940) 1 standard bag 650x740 1 bag...
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Parts list: power circuit and short circuit protection model:pam2000 drw.Nº 33.0129pl rev : a date: 000621 sheet 1 of 3 replaced by: reference value c101 47µ/100 c102 c100n c103 10µ/50 c104 10µ/50 c105 c15p c106 c100n c107 c100n c108 c100n c109 c68p c110 c68p c111 47µ/100 c112 47µ/100 c113 100n/400 ...
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Parts list: power circuit and short circuit protection model:pam2000 drw.Nº 33.0129pl rev : a 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 q...
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Parts list: power circuit and short circuit protection model:pam2000 drw.Nº 33.0129pl rev : a date: 000621 sheet 3 of 3 replaced by: reference value r126 w.22 Ω /5 r127 w.22 Ω /5 r128 w.22 Ω /5 r129 w.22 Ω /5 r131 330 Ω /.5 r132 330 Ω /.5 r133 330 Ω /.5 r134 330 Ω /.5 r135 330 Ω /.5 r137 330 Ω /.5 r...
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Parts list: power circuit and short circuit protection model:pam2000 drw.Nº 33.0129pl rev : date: 000621 sheet 1 of 3 replaced by: reference value c101 47µ/100 c102 c100n c103 10µ/50 c104 10µ/50 c105 c15p c106 c100n c107 c100n c108 c100n c109 c68p c110 c68p c111 47µ/100 c112 47µ/100 c113 100n/400 c1...
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Parts list: power circuit and short circuit protection model:pam2000 drw.Nº 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...
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Parts list: power circuit and short circuit protection model:pam2000 drw.Nº 33.0129pl rev : date: 000621 sheet 3 of 3 replaced by: reference value r126 w.22 Ω /5 r127 w.22 Ω /5 r128 w.22 Ω /5 r129 w.22 Ω /5 r131 330 Ω /.5 r132 330 Ω /.5 r133 330 Ω /.5 r134 330 Ω /.5 r135 330 Ω /.5 r137 330 Ω /.5 r13...