Ecleree PAM2600 Service Manual Download Page 65

Page: 65 / 107

PARTS LIST:

PROTECTIONS CIRCUIT

MODEL : PAM2600/2000 DRW. No 33.0123PL

REV:

DATE: 070795

SHEET

OF 4 REPLACES:

REPLACED BY:

REFERENCE

VALUE

R306

7K50

R307

90K9

R308

15K

R309

10K

R310

R311

2K7

R312

1k27

R313

604

Ω

R314

10K

R315

R316

2M2

R317

2M2

R318

5K6

R319

5K6

R320

332K

R321

332K

R322

590K

R323

226K

R324

5K6

R325

5K6

R326

Ω

R327

100k

R328

6K8

R329

6K8

R330

560

Ω

R331

100K

R332

100k

R333

100k

R334

10K

R335

100k

R336

5K6

R337

10K

R338

100k

R339

10K

R340

680K

R341

680K

R342

1M2

R343

1M2

R344

100

Ω

R345

100

Ω

R346

68K

R347

47K

R348

100k

R349

100k

R350

10K

R351

5K6

R352

Ω

R353

590K

R354

332K

R355

332K

R356

226K

R357

5K6

R358

100k

R359

6K8

R360

6K8

R361

560

Ω

Summary of Contents for PAM2600

Page 1: ...PAM2600 2000 SERVICE MANUAL...

Page 2: ...2600 2000 INDEX BLOCK DIAGRAM FUNCTIONING DESCRIPTION SCHEMATICS COMPONENTS LOCATION SCHEMA TESTING AND QUALITY CONTROL TECHNICAL CHARACTERISTICS WIRING DIAGRAM CONFIGURATION DIAGRAM MECHANICAL DIAGRA...

Page 3: ......

Page 4: ...ommon base configuration in a current source structure The current sources have a double function polarizing the gate source links in the MOSFETs to the limit of the conduction and moving the voltage...

Page 5: ...ys first the conduction threshold voltage has a negative temperature coefficient second the drain source conduction resistance increases with temperature Depending on which of the two things is predom...

Page 6: ...es R111 The symmetry adjust does not correct the asymmetrical clipping saturation of the power amplifier with real load This happens because the conduction resistors Ron of the MOSFETs N and P are not...

Page 7: ...MOSFET will always be high The protections should be activated with very low current Fast protections and some of the slow ones are working in this zone The circuit that configures the fast ones is ma...

Page 8: ...nother stair of the stairway and enter the ZONE C The link between the module s protection circuit and the relays control circuit is made through IC103 and IC104 which are as mentioned earlier opto co...

Page 9: ...6...

Page 10: ...7...

Page 11: ...lifier s ringing with very capacitive loads 2 2 F 4 The Zobel Network eliminates possible oscillations of the MOSFETs between 5MHz and 10MHz too This is why it must be physically placed at the module...

Page 12: ...relation to the power module s temperature which is read by a thermal probe LM35D jointly linked to the heat sink This high sensitivity thermal probe gives variations of 10mV for every EC This voltag...

Page 13: ...10...

Page 14: ...nding comparator is balanced to the power supply 10V acting through D307 R318 D308 and R319 over the respective bases of transistors Q301 y Q307 which makes the corresponding relay open This output is...

Page 15: ...nditions has 0V respect to ground If we apply Ohm s Law to these dividers we will obtain the above mentioned voltages Let s remember briefly the function of a NOR gate like the HEF4001B A B C 0 0 1 0...

Page 16: ...lip threshold or point where we want the LED to light up is determined by the zener D313 In our case it is between 0 5 and 1dB or what is the same when the output signal level over the load reaches a...

Page 17: ...nsers there is enough time to saturate Q305 which puts the resistances R15 and R344 50 in parallel with the power supply 10V of the logic circuitry completely discharging the capacities of the circuit...

Page 18: ...k to the original zero state because it receives a new MR reset pulse from the monostable IC311 whose time constant is approximately 5 minutes R342 C319 This monostable begins counting from the very f...

Page 19: ...16...

Page 20: ...0 in one of the legs of the NAND IC308 generates the immediate opening the relay as we have seen before On the other hand the voltage divider of the DC OUT circuit is put off balance The monostable t...

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Page 29: ...4 47n 400 C115 47 50 C116 47 50 C117 680n C118 680n C119 220n 100 C120 220n 100 C121 220n 100 C122 220n 100 C123 220n 100 C124 220n 100 C125 680n C126 680n C127 1 63 C128 100 25 D101 Z3 6 1 D102 Z3 6...

Page 30: ...5031 Q104 MJE15030 Q105 IRFP240 Q106 IRFP240 Q107 IRFP240 Q108 IRFP240 Q109 IRFP240 Q110 IRFP240 Q111 IRFP9240 Q112 IRFP9240 Q113 IRFP9240 Q114 IRFP9240 Q115 IRFP9240 Q116 IRFP9240 Q117 2N5401 Q118 2N...

Page 31: ...R134 330 5 R135 330 5 R136 330 5 R137 330 5 R138 330 5 R139 330 5 R140 330 5 R141 330 5 R142 W 22 5 R143 W 22 5 R144 W 22 5 R145 W 22 5 R146 W 22 5 R147 W 22 5 R148 NF2 2 2 R149 6 8 R150 6 8 R151 10 2...

Page 32: ...CIRCUIT AND SHORT CIRCUIT PROTECTION MODEL PAM2600 DRW N 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 BL...

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Page 37: ...47n 400 C115 47 50 C116 47 50 C117 680n C118 680n C119 220n 100 C120 220n 100 C121 220n 100 C122 220n 100 C123 220n 100 C124 220n 100 C125 680n C126 680n C127 1 63 C128 100 25 D101 Z3 6 1 D102 Z3 6 1...

Page 38: ...5031 Q104 MJE15030 Q105 IRFP240 Q106 IRFP240 Q107 IRFP240 Q108 IRFP240 Q109 IRFP240 Q110 IRFP240 Q111 IRFP9240 Q112 IRFP9240 Q113 IRFP9240 Q114 IRFP9240 Q115 IRFP9240 Q116 IRFP9240 Q117 2N5401 Q118 2N...

Page 39: ...134 330 5 R135 330 5 R136 330 5 R137 330 5 R138 330 5 R139 330 5 R140 330 5 R141 330 5 R142 W 22 5 R143 W 22 5 R144 W 22 5 R145 W 22 5 R146 W 22 5 R147 W 22 5 R148 NF2 2 2 R149 6 8 R150 6 8 R151 10 2...

Page 40: ...CIRCUIT AND SHORT CIRCUIT PROTECTION MODEL PAM2600 DRW N 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 BLA...

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Page 43: ...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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Page 46: ...00n C216 C100n D201 1N4148 D202 1N4148 D203 1N4148 D204 1N4148 D205 1N4148 D206 1N4148 D207 1N4148 D208 1N4148 D209 1N4148 D210 1N4148 D211 Z18 1 D212 Z18 1 IC201 TL072 IC202 TL072 IC203 TL072 J201 B4...

Page 47: ...0295 SHEET 2 OF 2 REPLACES REPLACED BY REFERENCE VALUE R215 56 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 MF1...

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Page 50: ...EET 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 V...

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Page 53: ...FASTON 6 3 J802 FASTON 6 3 J804 FASTON 6 3 J805 FASTON 6 3 J806 FASTON 6 3 J807 FASTON 6 3 J808 FASTON 6 3 J809 FASTON 6 3 J810 FASTON 6 3 J811 FASTON 6 3 J812 FASTON 6 3 J813 FASTON 6 3 J814 FASTON...

Page 54: ...ND POWER CIRCUIT MODEL PAM2600 2000 DRW No 33 0126PL REV DATE 050995 SHEET 2 OF 2 REPLACES REPLACED BY REFERENCE VALUE R812 W39 8 R813 W39 8 R814 W39 8 WIRE8 BLUE 430mm WIRE9 BROWN 430mm WIRE9 BROWN 4...

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Page 63: ...50 C312 10 35 C313 10 35 C314 100n C315 22 35 C316 2 2 35 C317 10 50 C318 2 2 35 C319 220 25 C320 10 50 C321 220 25 C322 47 16 C323 100n C324 10 35 C325 10 35 C326 100n C327 100n C328 100n C329 100n...

Page 64: ...WASHER R19 INSULANT WASHER R19 J302 FAST 6 3 J302 FAST 6 3 J303 FAST 6 3 J304 B6P VH J305 B6P VH J306 FAST 6 3 J309 B3P VH J310 B3P VH J311 B3P VH K301 E 3209 4000 K302 E 3209 4000 MA301 MAGNET MA302...

Page 65: ...16 2M2 R317 2M2 R318 5K6 R319 5K6 R320 332K R321 332K R322 590K R323 226K R324 5K6 R325 5K6 R326 0 R327 100k R328 6K8 R329 6K8 R330 560 R331 100K R332 100k R333 100k R334 10K R335 100k R336 5K6 R337 1...

Page 66: ...00 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 R7 0 R8 6K8 R9 6K8 SCREW M3X8 DIN7985 NINE SCRE...

Page 67: ...SYMMETRY 470 untill you get the above mentioned numbers Test the operational amplifier power supply 18V 1V Put the fuse back in its place into the module with the power amplifier turned off and repea...

Page 68: ...ermic sensor and shortcircuit the green and violet wires Check that first the THERMAL led of the corresponding channel is lit second the fan is operating at maximum speed and third the two protection...

Page 69: ...utput and connect the loudspeakers Make an exhaustive test of Sound quality no distorsions or noises Faders action fader travel signal cut at their low end no scratching or clicking noises and correct...

Page 70: ...0dBV 1V 47k CLIP indicators at 0 3dB Outputs These are provided with 2 speak on Protections Delayed turn on heavy duty relay with PROTECT indicator ON during standby DC 4Hz or DC at 2V PROTECT INDICA...

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Page 78: ...6 SCREW M4x20 ALLEN DIN912 8 SCREW M4x12 SPANLO DIN965 16 SCREW M3x9 SPANLO DIN7985 8 METAL WASHER 3 2x6x1 4 INSULANT R19 2 CARDBOARD WD 03 0069 2 ASSEMBLED PRINTED CIRCUIT 11 504B 6 NUT M4 6 WASHER M...

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Page 80: ...o 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...

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Page 82: ...5 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 DIN7985 2 METAL...

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Page 84: ...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 PAM...

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Page 86: ...R 4 2x9x1 5 6 METAL WASHER 4 2x7x0 5 4 NYLON RIVET 1303 6 SPACER 5mm 2 WHITE D15 CONTROL KNOB 2 REINFORCEMENT WD 00 2045 2 HANDLE ASSEMBLY WD 00 1966 1 ASSEMBLY PRINTED CIRCUIT 11 0537 1 LOWER FRONT P...

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Page 88: ...R 4 2x9x1 5 6 METAL WASHER 4 2x7x0 5 4 NYLON RIVET 1303 6 SPACER 5mm 2 WHITE D15 CONTROL KNOB 2 REINFORCEMENT WD 00 2045 2 HANDLE ASSEMBLY WD 00 1966 1 ASSEMBLY PRINTED CIRCUIT 11 0537 1 LOWER FRONT P...

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Page 90: ...ER WD 00 1636 4 METAL WASHER 4 2x9x1 5 6 METAL WASHER 4 2x7x0 5 4 NYLON RIVET 1303 4 SPACER 5x9 5x6 35 2 WHITE D15 CONTROL KNOB 2 REINFORCEMENT WD 00 2045 2 HANDLE ASSEMBLY WD 00 1966 1 ASSEMBLY PRINT...

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Page 92: ...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 6...

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Page 98: ...47n 400 C115 47 50 C116 47 50 C117 680n C118 680n C119 220n 100 C120 220n 100 C121 220n 100 C122 220n 100 C123 220n 100 C124 220n 100 C125 680n C126 680n C127 1 63 C128 100 25 D101 Z3 6 1 D102 Z3 6 1...

Page 99: ...0 Q106 IRFP240 Q107 IRFP240 Q108 IRFP240 Q109 IRFP240 Q110 IRFP240 Q112 IRFP9240 Q113 IRFP9240 Q114 IRFP9240 Q115 IRFP9240 Q116 IRFP9240 Q117 2N5401 Q118 2N5401 Q119 BC337 Q120 BC337 Q121 2N5551 Q122...

Page 100: ...R141 330 5 R143 W 22 5 R144 W 22 5 R145 W 22 5 R146 W 22 5 R147 W 22 5 R148 NF2 2 2 R149 6 8 R150 6 8 R151 10 2 R152 W1k5 7 R153 W6 8 5 R154 W1k5 7 R155 MF1k00 R156 MF487 R157 5k6 5 R158 8k2 5 R159 1k...

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Page 105: ...400 C115 47 50 C116 47 50 C117 680n C118 680n C119 220n 100 C120 220n 100 C121 220n 100 C122 220n 100 C123 220n 100 C124 220n 100 C125 680n C126 680n C127 1 63 C128 100 25 D101 Z3 6 1 D102 Z3 6 1 D10...

Page 106: ...Q106 IRFP240 Q107 IRFP240 Q108 IRFP240 Q109 IRFP240 Q110 IRFP240 Q112 IRFP9240 Q113 IRFP9240 Q114 IRFP9240 Q115 IRFP9240 Q116 IRFP9240 Q117 2N5401 Q118 2N5401 Q119 BC337 Q120 BC337 Q121 2N5551 Q122 2...

Page 107: ...141 330 5 R143 W 22 5 R144 W 22 5 R145 W 22 5 R146 W 22 5 R147 W 22 5 R148 NF2 2 2 R149 6 8 R150 6 8 R151 10 2 R152 W1k5 7 R153 W6 8 5 R154 W1k5 7 R155 MF1k00 R156 MF487 R157 5k6 5 R158 8k2 5 R159 1k8...

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