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DPA2500T / DPA4000T

SERVICE MANUAL

Содержание DPA2500T

Страница 1: ...DPA2500T DPA4000T SERVICE MANUAL ...

Страница 2: ...500T DPA4000T 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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Страница 4: ...o get saturated and R171 eliminates the loads on BF472 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 sour...

Страница 5: ...amplifier starts to function normally The discharge or reset of capacitor C119 47µF can be done by cutting off the power supply or by triggering the Thermal or other protections During a short period of time BC817 type transistor Q102 acts like a switch shunting two 75Ω resistors to C119 Moreover the amplifier includes some other additional features like Volume control by a VCA system An ANTICLIP ...

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Страница 14: ...07000 1N4007 D101 FCDD14007000 1N4007 D102 FCDD14007000 1N4007 D103 FCDD14007000 1N4007 D104 FCDD14007000 1N4007 D105 FCDD14007000 1N4007 D106 FCDD14007000 1N4007 D107 FCDD14007000 1N4007 D108 FCFUS8040000 16A Temp F101 FCFUS8040000 16A Temp F102 FCCTAMP06000 6P AMP MALE SOC J101 FCCTAMP06000 6P AMP MALE SOC J102 FCCTAMP06000 6P AMP MALE SOC J103 FCCTAMP06000 6P AMP MALE SOC J104 FCTERMF63000 Fast...

Страница 15: ...PARTS LIST PRINTED CIRCUIT 11 1034 02 01 Code Description Reference FC2H13720000 1137 02 00 WI106 FC2H13720000 1137 02 00 WI107 40 0160 0100 EP05 05 DPA4000T xls 2 of 2 ...

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Страница 18: ...2200u 200 C119 FCCE36022000 2200u 200 C120 FCCI01036000 Printed Board 11 1036 02 CI102 FCTERM100000 Faston 6 3mm J101 FCTERM100000 Faston 6 3mm J102 FCTERM100000 Faston 6 3mm J103 FCTERM100000 Faston 6 3mm J104 FCRP55330000 33k 2 PR02 R101 FCRP55330000 33k 2 PR02 R102 FCRP55330000 33k 2 PR02 R103 FCRP55330000 33k 2 PR02 R104 FC0H08535000 1085 03 50 WI101 FC0H07125000 1071 02 50 WI102 FC0H08550000 ...

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Страница 21: ... 11 1038 01 00 Code Description Reference FCCI01038000 Printed Board 11 1038 01 CI101 FCCTM0003000 B3B EH A J101 FCCTM0003000 B3B EH A J102 FCPR11004000 10kRD R101 FCPR11004000 10kRD R102 40 0160 0100 EP05 05 DPA4000T xls 1 of 1 ...

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Страница 24: ...CI101 FCTERM100000 Faston 6 3mm J103 FCTERM100000 Faston 6 3mm J104 FCBASS012000 NL4MD H J105 FCBASS012000 NL4MD H J106 FCBASS012000 NL4MD H J107 FCTERM100000 Faston 6 3mm J108 FCTERM100000 Faston 6 3mm J109 FC0H05350000 1053 05 00 WI101 FC0H05440000 1054 04 00 WI103 40 0160 0100 EP05 05 DPA4000T xls 1 of 1 ...

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Страница 27: ...DK5180000 C180n C126 FCCDK5180000 C180n C127 FCCDK5180000 C180n C128 FCCE10000000 47u 16 C129 FCCE10000000 47u 16 C130 FCCI01047000 Printed Board 11 1047 01 CI102 FCXDDBAS2800 BAS28 D101 FCXDDBAS2800 BAS28 D102 FCXDDBAS2800 BAS28 D103 FCXDDBAS2800 BAS28 D104 FCXDDBAS1600 BAS16 D105 FCXDDBAS1600 BAS16 D106 FCLEDSMD2000 TLMH3100 D201 FCLEDSMD2500 TLMY3100 D202 FCLEDSMD2000 TLMH3100 D203 FCLEDSMD3000...

Страница 28: ...00k R112 FCXR64243000 24k3 0 5 R113 FCXR64243000 24k3 0 5 R114 FCXR64243000 24k3 0 5 R115 FCXR64243000 24k3 0 5 R116 FCXR64243000 24k3 0 5 R117 FCXR64243000 24k3 0 5 R118 FCXR64243000 24k3 0 5 R119 FCXR64243000 24k3 0 5 R120 FCXR55100000 100k R121 FCXR55100000 100k R122 FCXR55100000 100k R123 FCXR53619000 6k19 R124 FCXR53619000 6k19 R125 FCXR54100000 10k0 R126 FCXR54100000 10k0 R127 FCXR53100000 1...

Страница 29: ...aston 2 8mm TS101 FCTERMF28000 Faston 2 8mm TS102 FCTERMF28000 Faston 2 8mm TS103 FC4K00750000 1007 05 00 WI101 FC4K00750000 1007 05 00 WI102 FC4N04960000 1049 06 00 WI201 FC4I00510000 1005 01 00 WI202 FC4N04960000 1049 06 00 WI203 FC4I00510000 1005 01 00 WI204 FC4J00665000 1006 06 50 WI205 40 0160 0100 EP05 05 DPA4000T xls 3 of 3 ...

Страница 30: ... unit s power supply by applying a 1KHz 0dB input signal and connecting 4Ω load impedances to the amplifier s output and reduce the unit s mains voltage to 0V by turning down the variac s output Repeat this procedure on the other channel Once the adjustments are done turn on again the unit by switching over its main power switch and verify the STANDBY period lasts approximately 10 seconds the clip...

Страница 31: ...s signal and leave it ON Turn down the power stage volume potentiometer to its minimum Connect a 0 5Ω load impedance Connect the oscilloscope test probes parallel to the load impedance Select a 5V div vertical scale and a 0 2ms div time base Turn up quickly the volume potentiometer Depending on with branch is working the positive or negative half of the signal cycle is clipped Verify that no ringi...

Страница 32: ...se but no annoying noise is heard through the loudspeakers Also check that all potentiometers can run smoothly their whole sweep without noise and crisperings At their minimum position check that output signal is completely cutted off To ensure that all electrical junctions are well fixed hit the tested unit against your working table obviously without damaging its outer presentation Verify all in...

Страница 33: ...4dB Damping factor 1kHz 8Ω 320 370 Slew Rate 125V µs 135V µs Channel Crosstalk 1kHz 74dB 74dB Input connectors XLR3 balanced Input CMRR ref Max PWR 64dB 1kHz 70dB 1kHz Input sensitivity impedance 0dBV 20kΩ Signal present indicator 40dB Output connectors Speakon Clip indicators 1 5dB real clip Anticlip limiter Intelligent A SP Mains Depending on your country See characteristics in the back of the u...

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Страница 36: ...9 06 00 16 1049 06 00 16 1006 06 50 16 1007 05 00 2x16 1039 03 50 16 1054 04 00 16 1053 05 00 16 1071 02 50 16 1085 03 50 16 1071 05 00 16 1085 05 00 16 1138 00 00 16 1138 00 00 16 1051 02 80 16 1051 02 80 16 1051 03 50 16 1051 03 50 16 1007 05 00 2x16 1039 03 50 16 1137 02 00 16 1005 01 00 16 1066 07 00 16 1066 07 00 16 1021 03 00 16 1021 03 00 AC WIRES ON THE BOTTOM ...

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Страница 38: ...BAG 60x80 3 1 FCBOLS020000 STANDARD BAG 75x65 4 2 FCBOTD240100 ROT KNOB PROTECTION COVER 5 1 FCCAJSTA1800 PACKING CARDBOARD BOX 6 1 FCCANT115300 REAR REINFORCEMENT TWIN PACK 7 1 FCCANT115400 FRONTAL REINFORCEMENT TWIN PACK 8 1 FCETI0951140 PRODUCT LABEL PACK ONE FOR EACH UNIT 9 1 FCFUNMAN0000 USER MANUAL BAG 10 2 FCFUS8040000 FUSE 16A 10x38 11 1 FCMANPAMDPA1 USER MANUAL DPA2500T 4000T 12 1 FCTARJG...

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Страница 43: ... 35 C124 FCXCN1220000 22p C125 FCCE25047000 47u 50 C126 FCCE25047000 47u 50 C127 FCXCN2100000 100p C128 FCXCN1330000 33p C129 FCXCN1330000 33p C130 FCXCN1150000 15p C131 FCCE25010000 10u 50 C132 FCCE25010000 10u 50 C133 FCXCN4470000 470n C134 FCXCN1120000 12p C135 FCXCN1120000 12p C136 FCXCN4470000 470n C137 FCXCN4470000 470n C138 FCXCN1220000 22p C139 FCXCN1220000 22p C140 FCXCN4470000 470n C141 ...

Страница 44: ...er Bead CB104 FCCIPAM73000 11 0730 Printed Board CI101 FCXDDBAS1600 BAS16 D101 FCXDD4007000 1N4007 D102 FCXDD4007000 1N4007 D103 FCXDD4007000 1N4007 D104 FCXDD4007000 1N4007 D105 FCXDD4007000 1N4007 D106 FCXDDBAS1600 BAS16 D107 FCXDDBAS1600 BAS16 D108 FCXDDBAS1600 BAS16 D109 FCXDDBAS2800 BAS28 D110 FCXDD4007000 1N4007 D111 FCXDD4007000 1N4007 D112 FCXDDBAS2800 BAS28 D113 FCXDD4007000 1N4007 D114 F...

Страница 45: ...000 Z15 D166 FCXDDBAS1600 BAS16 D167 FCXDD4007000 1N4007 D168 FCXDD4007000 1N4007 D169 FCFUS4012500 T1 25A F101 FCFUS4012500 T1 25A F102 FCFUS5008000 T250mA F103 FCFUS6030000 12 5A Temp F104 FCFUS6030000 12 5A Temp F105 FCFER4322000 Ferrite FB101 FCFER4322000 Ferrite FB102 FCFER4322000 Ferrite FB103 FCFER4322000 Ferrite FB104 FCFER4322000 Ferrite FB105 FCFER4322000 Ferrite FB106 FCFER4322000 Ferri...

Страница 46: ...000 7805 IC109 FCIC21800000 TH2180C IC110 FCIC43500000 4N35 IC111 FCIC55341000 NE5534A IC112 FCIC43500000 4N35 IC113 FCIC07401000 TL074 IC114 FCIC43500000 4N35 IC115 FCMICTO12600 Insulant TO126 IN100 FCMICTO12600 Insulant TO126 IN101 FCMICTO22000 Insulant TO220 IN102 FCMICTO22000 Insulant TO220 IN103 FCTERM008000 Socket 8p J100 FCCTJ1005000 B5P VH J101 FCCTAMP05000 5P AMP MALE SOCKET J103 FCCTM000...

Страница 47: ...031000 MJE15031 Q114 FCTR36000000 IRFP360 Q115 FCTR36000000 IRFP360 Q116 FCXTT0847000 BC847B Q117 FCXTT0847000 BC847B Q118 FCXTT0847000 BC847B Q119 FCXTT0847000 BC847B Q120 FCTI24600000 BTB24600B Q121 FCTR36000000 IRFP360 Q122 FCTR36000000 IRFP360 Q123 FCTR36000000 IRFP360 Q126 FCTR36000000 IRFP360 Q127 FCTR36000000 IRFP360 Q130 FCTR36000000 IRFP360 Q131 FCTR36000000 IRFP360 Q132 FCTR36000000 IRFP...

Страница 48: ...132 FCXR14100000 10k0 R133 FCXR12100000 100 0 R134 FCXR15287000 287k R135 FCXR11750000 75 0 R136 FCXR11750000 75 0 R137 FCXR14200000 20k0 R138 FCXR14100000 10k0 R139 FCXR13511000 5k11 R140 FCXR13182000 1k82 R141 FCXR15100000 100k0 R142 FCXR13100000 1k0 R143 FCXR14200000 20k0 R144 FCXR06100000 1M R145 FCXR13182000 1k82 R146 FCXR13475000 4k75 R147 FCXR13100000 1k0 R148 FCXR15100000 100k0 R149 FCXR13...

Страница 49: ...8 FCXR12100000 100 0 R189 FCXR12100000 100 0 R190 FCXR13100000 1k0 R191 FCXR13100000 1k0 R192 FCXR14332000 33k2 R193 FCXR14332000 33k2 R194 FCXR14221000 22k1 R195 FCXR14332000 33k2 R196 FCXR14332000 33k2 R197 FCXR14221000 22k1 R198 FCXR12100000 100 0 R199 FCXR12562000 562 R200 FCXR12100000 100 0 R201 FCXR12562000 562 R202 FCXR12301000 301 R203 FCXR12301000 301 R204 FCXR15100000 100k0 R205 FCXR1156...

Страница 50: ...4 FCXR13100000 1k0 R265 FCXR13100000 1k0 R266 FCXR14100000 10k0 R267 FCXR13511000 5k11 R268 FCXR14909000 90k9 R269 FCXR11562000 56 2 R270 FCXR00000000 0 RX100 FCXR00000000 0 RX101 FCT804006000 Screw M4x6 SPAN SC100 FCT804006000 Screw M4x6 SPAN SC101 FCT804006000 Screw M4x6 SPAN SC102 FCT804006000 Screw M4x6 SPAN SC103 FCT804006000 Screw M4x6 SPAN SC104 FCT804006000 Screw M4x6 SPAN SC105 FCT8040060...

Страница 51: ...PON1900 19mm W107 FCMECPON1900 19mm W108 FCMECPON1900 19mm W109 FCMECPON1900 19mm W110 FCMECPON1900 19mm W111 FCMECPON1900 19mm W112 FCMECPON1900 19mm W113 FCMECPON1900 19mm W114 FCMECPON1900 19mm W115 FCMECPON1900 19mm W116 FCMECPON1900 19mm W117 FCMECPON1900 19mm W118 FCMECPON1900 19mm W119 FCMECPON1900 19mm W120 FCMECPON1900 19mm W121 FCMECPON1900 19mm W122 FCMECPON1900 19mm W123 FCMECPON1900 1...

Страница 52: ... FCARM3200000 Metal Washer 3 2x6x0 5 WA106 FCARDE030000 Toothed Washer f M3 WA107 FCARDE030000 Toothed Washer f M3 WA108 FCARDE030000 Toothed Washer f M3 WA109 FCARDE030000 Toothed Washer f M3 WA110 FCARM3200000 Metal Washer 3 2x6x0 5 WA114 FCARAT000000 Washer Ins Tr 3x5 3x1 7 WA115 FCSEPCE12600 Ceramic Isolator TO126 WA116 FCSEPCE12600 Ceramic Isolator TO126 WA117 FCSEPCE12600 Ceramic Isolator TO...

Страница 53: ...4 FCT804012000 SCREW M4x12 D965 SPANLO 29 7 FCT850300500 SCREW M3x5 REDUCED HEAD 30 1 FCT850411000 SCREW M4x10 TRILOB WHITE 31 4 FCTALL516000 SCREW DIN7991 M5x16 ALLEN 32 2 FCTFT0215000 TOROIDAL TRANSFORMER DPA2500T 33 43 FCTIRACAU000 STICKER FOAM STRIP 10X8 units in cm 34 2 FCTUE0040000 NUT M4 35 2 FCTUPOT00000 ROTARY POT NUT M9 36 2 FMMOPAM41000 POWER AMPLIFIER MODULE 37 1 FP0286200000 REAR BLAN...

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Страница 58: ... 35 C124 FCXCN1220000 22p C125 FCCE25047000 47u 50 C126 FCCE25047000 47u 50 C127 FCXCN2100000 100p C128 FCXCN1220000 22p C129 FCXCN1220000 22p C130 FCXCN1150000 15p C131 FCCE25010000 10u 50 C132 FCCE25010000 10u 50 C133 FCXCN4470000 470n C134 FCXCN1120000 12p C135 FCXCN1120000 12p C136 FCXCN4470000 470n C137 FCXCN4470000 470n C138 FCXCN1220000 22p C139 FCXCN1220000 22p C140 FCXCN4470000 470n C141 ...

Страница 59: ...er Bead CB104 FCCIPAM73000 11 0730 Printed Board CI101 FCXDDBAS1600 BAS16 D101 FCXDD4007000 1N4007 D102 FCXDD4007000 1N4007 D103 FCXDD4007000 1N4007 D104 FCXDD4007000 1N4007 D105 FCXDD4007000 1N4007 D106 FCXDDBAS1600 BAS16 D107 FCXDDBAS1600 BAS16 D108 FCXDDBAS1600 BAS16 D109 FCXDDBAS2800 BAS28 D110 FCXDD4007000 1N4007 D111 FCXDD4007000 1N4007 D112 FCXDDBAS2800 BAS28 D113 FCXDD4007000 1N4007 D114 F...

Страница 60: ...4150000 Z15 D157 FCDD04150000 Z15 D158 FCDD04150000 Z15 D159 FCDD04150000 Z15 D160 FCDD04150000 Z15 D161 FCDD04150000 Z15 D162 FCDD04150000 Z15 D163 FCDD04150000 Z15 D164 FCDD04150000 Z15 D165 FCDD04150000 Z15 D166 FCXDDBAS1600 BAS16 D167 FCXDD4007000 1N4007 D168 FCXDD4007000 1N4007 D169 FCFUS4012500 T1 25A F101 FCFUS4012500 T1 25A F102 FCFUS5008000 T250mA F103 FCFUS6040000 T16A F104 FCFUS6040000 ...

Страница 61: ...00 Ferrite FB139 FCFER4322000 Ferrite FB140 FCFER4322000 Ferrite FB141 FCFER4322000 Ferrite FB142 FCFER4322000 Ferrite FB143 FCFER4322000 Ferrite FB144 FCFER4322000 Ferrite FB145 FCFER4322000 Ferrite FB146 FCFER4322000 Ferrite FB147 FCFER4322000 Ferrite FB148 FCRAD1263600 SERA 1137 HS100 FCRAD1263600 SERA 1137 HS101 FCRAD1263600 SERA 1137 HS102 FCRAD1263600 SERA 1137 HS103 FCMECT022000 Heatsink f ...

Страница 62: ...0000 Clamp WD 00 2636 MP102 FCPINZAM0000 Clamp WD 00 2636 MP103 FCTUE0030000 Nut M3 NV100 FCTUE0030000 Nut M3 NV101 FCTUE0030000 Nut M3 NV102 FCTUE0030000 Nut M3 NV103 FCTUE0030000 Nut M3 NV104 FCPORF315000 3 15P PF101 FCPORF010000 A0854668 PF102 FCPORF010000 A0854668 PF103 FCPORF010000 A0854668 PF104 FCPORF010000 A0854668 PF105 FCXTT0847000 BC847B Q101 FCXTT0817000 BC817 25 Q102 FCXTT0857000 BC85...

Страница 63: ... Q144 FCXTT0857000 BC857B Q145 FCXR15100000 100k0 R101 FCXR15100000 100k0 R102 FCXR13825000 8k25 R103 FCXR13221000 2k21 R104 FCXR14100000 10k0 R105 FCXR15100000 100k0 R106 FCXR15226000 226k R107 FCXR14100000 10k0 R108 FCXR12100000 100 0 R109 FCXR15100000 100k0 R110 FCXR13243000 2k43 R111 FCXR06100000 1M R112 FCXR15100000 100k0 R113 FCXR13221000 2k21 R114 FCXR13100000 1k0 R115 FCXR13127000 1k27 R11...

Страница 64: ... FCXR13100000 1k0 R158 FCXR12787000 787 R159 FCXR12178000 178 R160 FCXR12787000 787 R161 FCXR12178000 178 R162 FCXR13150000 1k50 R163 FCXR13150000 1k50 R164 FCXR13121000 1k21 R165 FCRJP4470000 4k7 CMET R166 FCXR11332000 33 2 R167 FCRC23680000 680 1 2 R168 FCXR15100000 100k0 R169 FCXR15100000 100k0 R170 FCXR12825000 825 R171 FCXR14100000 10k0 R172 FCXR14100000 10k0 R173 FCXR11332000 33 2 R174 FCRC2...

Страница 65: ...00010000 W0 22 5 R215 FCRY00010000 W0 22 5 R216 FCRF22180000 NF18 1 2 R217 FCRF22180000 NF18 1 2 R218 FCRY00010000 W0 22 5 R219 FCRY00010000 W0 22 5 R220 FCRF22180000 NF18 1 2 R221 FCRF22180000 NF18 1 2 R222 FCRY00010000 W0 22 5 R223 FCRY00010000 W0 22 5 R224 FCRF22180000 NF18 1 2 R225 FCRF22180000 NF18 1 2 R226 FCRY00010000 W0 22 5 R227 FCRY00010000 W0 22 5 R228 FCRF22180000 NF18 1 2 R229 FCRF221...

Страница 66: ... M4x6 SPAN SC102 FCT804006000 Screw M4x6 SPAN SC103 FCT804006000 Screw M4x6 SPAN SC104 FCT804006000 Screw M4x6 SPAN SC105 FCT804006000 Screw M4x6 SPAN SC106 FCT804006000 Screw M4x6 SPAN SC107 FCT804006000 Screw M4x6 SPAN SC108 FCT804006000 Screw M4x6 SPAN SC109 FCT804006000 Screw M4x6 SPAN SC110 FCT804006000 Screw M4x6 SPAN SC111 FCT803010000 Screw M3x10 SPA SC112 FCT803010000 Screw M3x10 SPA SC11...

Страница 67: ...9 FCMECPON1900 19mm W120 FCMECPON1900 19mm W121 FCMECPON1900 19mm W122 FCMECPON1900 19mm W123 FCMECPON1900 19mm W124 FCMECPON1900 19mm W125 FCMECPON1900 19mm W126 FCMECPON1900 19mm W127 FCMECPON1900 19mm W128 FCMECPON1900 19mm W129 FCMECPON1900 19mm W130 FCMECPON1900 19mm W131 FCMECPON1900 19mm W132 FCMECPON1900 19mm W133 FCMECPON1900 19mm W134 FCMECPON1900 19mm W135 FCMECPON1900 19mm W136 FCMECPO...

Страница 68: ...000 Toothed Washer f M3 WA109 FCARDE030000 Toothed Washer f M3 WA110 FCARM3200000 Metal Washer 3 2x6x0 5 WA114 FCARAT000000 Washer Ins Tr 3x5 3x1 7 WA115 FCSEPCE12600 Ceramic Isolator TO126 WA116 FCSEPCE12600 Ceramic Isolator TO126 WA117 FCSEPCE12600 Ceramic Isolator TO126 WA118 FCSEPCE12600 Ceramic Isolator TO126 WA119 FCARM3200000 Metal Washer 3 2x6x0 5 WA120 FCARAT000000 Washer Ins Tr 3x5 3x1 7...

Страница 69: ...O 29 7 FCT850300500 SCREW M3x5 REDUCED HEAD 30 1 FCT850411000 SCREW M4x10 TRILOB WHITE 31 4 FCTALL516000 SCREW DIN7991 M5x16 ALLEN 32 2 FCTFT0225000 TOROIDAL TRANSFORMER DPA4000T 33 43 FCTIRACAU000 STICKER FOAM STRIP 10X8 units in cm 34 2 FCTUE0040000 NUT M4 35 2 FCTUPOT00000 ROTARY POT NUT M9 36 2 FMMOPAM61000POWER AMPLIFIER MODULE 37 1 FP0286200000 REAR BLANK PANEL 38 1 FP0289802000 FRONT PANEL ...

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