Yorkville-AP4020-pwr-sm 维修电路原理图.pdf

s-ap4020.pdf v3.3 6/2002SERVICE MANUAL1. Parts List2. Pot Board M1128 Schematic M1128 PCB layout3. Input Board M1129 Schematic M1129 PCB layout4. Power Supply Board M1127 Schematic M1127 PCB layout M1126 Schematic M1126 PCB layout4. Service Kit M1146/m11265. Power Amp ModuleAP4020U.S.A.Yorkville Sound Inc.4625 Witmer Industrial EstateNiagara Falls, New York14305 USAVoice: (716) 297-2920Fax: (716) 297-3689WORLD HEADQUARTERSCANADAYorkville Sound550 Granite CourtPickering, OntarioL1W-3Y8 CANADAVoice: (905) 837-8481Fax: (905) 837-8746Quality and Innovation Since 1963Printed in CanadaWEB: RadioFans.CN 收音机爱 好者资料库1200W into 2 or 4 ohms per channelINSTRUCTIONS PERTAINING TO A RISKOF FIRE, ELECTRIC SHOCK,OR INJURY TO PERSONS.CAUTION:TO REDUCE THE RISK OF ELECTRIC SHOCK, DONOT REMOVE COVER (OR BACK).NO USER SERVICEABLE PARTS INSIDE.REFER SERVICING TO QUALIFIEDSERVICE PERSONNEL.Read Instructions:The Owners Manual should be read and understoodbefore operation of your unit. Please, save theseinstructions for future reference.Packaging:Keep the box and packaging materials, in case the unitneeds to be returned for service.Warning:When using electric products, basic precautions shouldalways be followed, including the following:Power Sources:Your unit should be connected to a power source only of thevoltage specified in the owners manual or as marked on the unit.This unit has a polarized plug. Do not use with an extension cord orreceptacle unless the plug can be fully inserted. Precautions shouldbe taken so that the grounding scheme on the unit is not defeated.Hazards:Do not place this product on an unstable cart, stand, tripod, bracket ortable. The product may fall, causing serious personal injury and seriousdamage to the product. Use only with cart, stand, tripod, bracket, or tablerecommended by the manufacturer or sold with the product. Follow themanufacturers instructions when installing the product and use mountingaccessories recommended by the manufacturer.The apparatus should not be exposed to dripping or splashingwater; no objects filled with liquids should be placed on theapparatus.Terminals marked with the “lightning bolt” are hazardous live;the external wiring connected to these terminals require installationby an instructed person or the use of ready made leads or cords.No naked flame sources, such as lighted candles, should beplaced on the apparatus.Power Cord:The AC supply cord should be routed so that it is unlikely that it willbe damaged. If the AC supply cord is damaged DO NOTOPERATE THE UNIT.Service:The unit should be serviced only by qualified service personnel.INSTRUCTIONS RELATIVES AU RISQUEDE FEU, CHOC LECTRIQUE, OUBLESSURES AUX PERSONNES.AVIS: AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE,NENLEVEZ PAS LE COUVERT (OU LE PANNEAUARRIERE). NE CONTIENT AUCUNE PIECE REPARABLEPAR LUTILISATEUR.CONSULTEZ UN TECHNICIEN QUALIFIEPOUR LENTRETIENT.Veuillez lire le manuel:Il contient des informations qui devraient tres comprises avantlopration de votre appareil. Conservez S.V.P. ces instructionspour consultations ultrieuresEmballage:Conservez la boite au cas ou lappareil devait treretourner pour rparation.Warning:Attention: Lors de lutilisation de produits lectrique,assurez-vous dadhrer des prcautions de basesincluant celle qui suivent:Alimentation:Lappareil ne doit tre branch qu une source dalimentationcorrespondant au voltage spcifi dans le manuel ou tel quindiqusur lappareil. Cet appareil est quip dune prise dalimentationpolarise. Ne pas utiliser cet appareil avec un cordon deraccordement moins quil soit possible dinsrer compltement lestrois lames. Des prcautions doivent tres prises afin deviter que lesystme de mise la terre de lappareil ne soit dsengag.Hazard:Ne pas placer cet appareil sur un chariot, un support, un trpied ou unetable instables. Lappareil pourrait tomber et blesser quelquun ou subir desdommages importants. Utiliser seulement un chariot, un support, un trpiedou une table recommands par le fabricant ou vendus avec le produit.Suivre les instructions du fabricant pour installer lappareil et utiliser lesaccessoires recommands par le fabricant.Il convient de ne pas placer sur lappareil de sources de flammesnues, telles que des bougies allumes.Lappeil ne doit pas tre expos des gouttements deau ou desclaboussures et quaucun objet rempli de liquide tel que des vasesne doit tre plac sur lappareil.Les dispositifs marqus dune symbole “dclair” sont des partiesdangereuses au toucher et que les cblages extrieurs connects ces dispositifs de connection extrieure doivent tre effectivs par unoprateur form ou en utilisant des cordons dj prpars.Cordon dalimentation:vitez dendommager le cordon dalimentation. NUTILISEZ PASLAPPAREIL si le cordon dalimentation est endommag.Service:Consultez un technicien qualifi pour lentretien de votre appareil.IMPORTANT SAFETY INSTRUCTIONSSAFE_V4.doc Version 4.0 02/11/99 11:54 AMAP4020 Parts List 2/16/99YS #DescriptionQty.YS #DescriptionQty.YS #DescriptionQty.3570 14 PIN SCKT 641261/3 OR W3114T12448 15.0 AMP CIRCUIT BREAKER14629 1/2W 10K 5% T&R RES85906 RED 3MM LED 1V9 20MA .4 SPACER T&R33820 4UH COIL 14AWG ZOBEL HORIZONTAL24800 1/4W 10K0 1% T&R RES55908 GRN 3MM LED 1V9 20MA .4 SPACER T&R33601 RING TERMINAL 16AWG WIRE & #8 SCREW14829 1/4W 10K 5% T&R RES86408 GREEN 3MM LED 1V9 5MA FROSTED33615 STAR RING TERMINAL 18 AWG #10 SCREW44983 1/4W 10K 5%MINI T&R RES36419 BRIDGE 35A 400V WIRE LEAD GI350423410 RED ON LEFT DUAL BINDING POST TPP416116 1/4W 10K0 1%MINI MF T&R RES126425 BAV21 200V 0A25 DIODE T&R43415 RED ON RIGHT DUAL BINDING POST TPP414856 1/4W 12K 5% T&R RES46438 1N4004 400V 1A0 DIODE T&R113918 1/4 SLIM JACK PC MOUNT W/SCREW24901 1/4W 13K 5% T&R RES46825 1N4148 75V 0A45 DIODE T&R513628 PC-MOUNT 250TAB SPEAKON #4SCREW GRY34830 1/4W 15K 5% T&R RES46934 MR854 400V 3A0 DIODE FAST RECOV203657 FEMALE XLR PC MOUNT HORIZONTAL24771 1/4W 17K8 1% T&R RES26439 1N5225B 3V0 0W5 ZENER 5% T&R23860 FAN 80MM X 80MM 40CFM 12VDC16125 1/4W 18K 5%MINI T&R RES26440 1N750ARL 4V7 0W5 ZENER 5% T&R93894 AAVID 5972-B H/S W/TAB B.O.86123 1/4W 20K0 1%MINI MF T&R RES26450 1N5242B 12V0 0W5 ZENER 5% T&R43501 B52200F006 COMP WASH #4 SMALL234832 1/4W 22K 5% T&R RES66822 1N4745A 16V0 1W0 ZENER 5% T&R43552 NYLON SPRING CLAMP16118 1/4W 22K 5%MINI T&R RES16824 1N5246B 16V0 0W5 ZENER 5% T&R23827 SQUARE BUMPER BUTTON BLACK114833 1/4W 27K 5% T&R RES36432 1N5248B 18V0 0W5 ZENER 5% T&R28433 AP SERIES PLASTIC KNOB24840 1/4W 33K 5% T&R RES36429 1N4747A 20V0 1W0 ZENER 5% T&R18661 BUTTON KNOB FLAT GREY34853 1/4W 39K 5% T&R RES46465 1N5250B 20V0 0W5 ZENER 5% T&R23468 8? 3/16 SJT AC LINE CORD STRIP 1716119 1/4W 47K 5%MINI T&R RES36463 1N5251BRL 22V0 0W5 ZENER 5% T&R13821 HEYCO #1200 STRAIN RELIEF14835 1/4W 56K 5% T&R RES46433 1N5257B 33V0 0W5 ZENER 5% T&R33638 12 CIR CABLE HOLDER .09814836 1/4W 68K 5% T&R RES45101 BC550C TO92 NPN TRANS. T&R143676 8 CIR CABLE HOLDER .09824838 1/4W 100K 5% T&R RES25102 BC560C TO92 PNP TRANS. T&R148701 4-40 KEPS NUT ZINC206120 1/4W 100K 5%MINI T&R RES25103 MPSA06 TO92 NPN TRANS. T&R38793 4-40 HEX NUT ZINC34851 1/4W 120K 5% T&R RES25107 2N5551 TO92 NPN TRANS. T&R28760 6-32 KEPS NUT TIN PLATED644790 2.0W 150K 5%10MM BODY T&R RES25108 2N5401 TO92 PNP TRANS. T&R48800 6-32 KEPS NUT ZINC24886 1/4W 200K 5% T&R RES16854 2N6517 TO92 NPN TRANS.28720 #8 SPRING NUT24841 1/4W 220K 5% T&R RES25105 MPSA13 TO92 NPN DARLINGTONT&R18797 5/16-18 KEPS NUT JS50016126 1/4W 220K 5%MINI T&R RES65106 MPSA63 TO92 PNP DARLINGTONT&R13797 TO-247 THERMO CONDUCTIVE PAD44843 1/4W 470K 5% T&R RES26814 MJF6668 221D- PNP DARLINGTON13815 TO3 PREGREASED MICA 56-03-2AP324844 1/4W 1M 5% T&R RES16815 MJF6388 221D- NPN DARLINGTON23823 TO-220 THERMO PAD SMALL HOLE44948 1/4W 1M 5% .2U T&R RES16873 MJE340 TO126 NPN TRANS63846 TO220 THERMO PAD LARGE HOLE 56359B44951 1/4W 4M7 5% .2U T&R RES26874 MJE350 TO126 PNP TRANS.63580 12 CIR WAFER W/LCK VT 0.116132 1/4W 8M2 5%MINI T&R RES26752 MTP10N15L TO220 N CHAN MOSFET23583 8 CIR WAFER W/LCK 0.123700 RELAY 2C 01AMP DC24 ?MA PC-S16933 MTP23P06 TO220 P CHAN MOSFET24745 5.0W 0R1 5% BLK RES123721 RELAY 1A 16AMP DC24 022MA PC-C16900 YS6900 (22) TO3 NPN TRANS.164749 5.0W 0R15 5% BLK RES43604 21 14C-28AWG DIP HDR CABLE .05016989 MJL1302A T03P PNP TRANS PWR24974 1.0W 0R47 5%FLAME PROOF T&R RES23706 13 8C-26AWG RIB 1 W/LCK HDR 0.126990 MJL3281A T03P NPN TRANS PWR24677 1/2W 1R 5% T&R RES43740 15 12C-26AWG RIB 1 W/LCK HDR 0.116927 YS6927 (23) TO3 PNP TRANS.164973 1.0W 1R 5%FLAME PROOF T&R RES48865 4-40 X 5/16 PAN PH MS SJ50026840 MC33078P IC DUAL OP AMP54688 1/2W 2R2 5% T&R RES38742 4-40 X 3/8 PAN PH TAPTITE JS50025190 MBS4992 TO92 8V5 DIAC T&R24911 1/4W 2R2 5% T&R RES88861 4-40 X 3/8 PAN PH MS SJ50086444 MAC224-4 TO220 40A TRIAC 200V24748 2.0W 3R9 5% BLK RES28741 4-40 X 1/2 PAN PH MS JS500116859 NSL-28AA OPTO-COUPLER24733 5.0W 5R6 5% BLK RES28827 4-40 X 1/2 FLAT PH TAPTITE SJ50066880 4N35 OPTO-COUPLER44605 1/8W 10R 5% T&R RES18871 4-40 X 5/8 PAN PH MS SJ50086478 AS35FN-TO92 TEMPERATURE SENSOR24610 1/4W 10R 2%FLAME PROOF T&R RES88799 #6 X 1/4 PAN PH TYPE B JS50026489 5R0 20% NTC THERMISTOR24875 1/4W 10R 5% T&R RES28832 6-32 X 1/4 PAN PH TAPTITE SJ50015200 _10P 200V 5%CAP T&R RAD CER.2NPO44930 1/4W 10R 5% .2U T&R RES18801 6-32 X 3/8 PAN PH TAPTITE SJ50045410 100P 100V 10%CAP T&R BEAD NPO24591 1/8W 22R1 1%FLAME PROOF T&R RES28829 6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA185197 220P 100V 2%CAP T&R RAD CER.2NPO14607 1/8W 39R 2%FLAME PROOF T&R RES168761 6-32 X 1/2 PAN PHIL MS ZINC CLEAR645412 220P 100V 10%CAP T&R BEAD NPO134899 1/4W 39R 5% T&R RES68806 6-32 X 1/2 PAN PH TAPTITE SJ50025417 330P 50V 10%CAP T&R BEAD NPO24811 1/4W 68R 5% T&R RES28837 6-32 X 1/2 ROUND PH MS SJ50015201 470P 100V 5%CAP T&R RAD CER.2NPO24590 1/8W 100R0 1%FLAME PROOF T&R RES48824 8-32 X 5/16 PAN QUAD TAPTITE SJ50025416 470P 50V 10%CAP T&R BEAD NPO24859 1/4W 150R 5% T&R RES48869 8-18 X 1/2 THRD CUTTING FOR PLASTIC45422 _1N 50V 10%CAP T&R BEAD NPO26201 1/4W 200R 1%FLAME PROOF T&R RES68999 8-32 X 5/8 PAN PH TAPTITE SJ500175273 _1N5 200V 5%CAP T&R RAD CER.2NPO24645 1/8W 220R0 1%FLAME PROOF T&R RES48719 8-32 X 3/4 FILLISTER PHIL MS JS50025427 _2N2 500V 10%CAP T&R RAD CER.2 YB64857 1/4W 220R 5% T&R RES48815 8-32 X 3/4 PAN PH TAPTITE SJ50055209 _4N7 250V 5%CAP T&R RADIAL.2FILM24977 1/4W 220R 5%MINI T&R RES78809 10-32 X 1/4 PAN PH TAPTITE SJ50046451 _4N7 250V 20%CAP AC Y ONLY RAD10MM14606 1/8W 249R 2%FLAME PROOF T&R RES88749 10-32 X 1/2 QDX PH TAPTITE JS50025834 _10N 250V 20%CAP RAD POLYFILM BULK24867 1/4W 270R 5% T&R RES48731 10-16 X 5/8 TYPE B HEX W/SLOT JS500125210 _22N 100V 10%CAP T&R RADIAL.2FILM114855 1/4W 330R 5% T&R RES28736 5/16-18X2-3/4 GRD 5 HEX BOLT JS50016435 _22N 275V 20%CAP AC X2 RAD BLK15MM24821 1/4W 470R 5% T&R RES48663 11/64 NYLON SPACER (MICRO PLASTIC)665308 _47N 50V 10%CAP T&R BEAD X7R24980 1/4W 470R 5%MINI T&R RES58629 10-32 X 1/4 SPACER PHENOLIC85226 _68N 100V 5%CAP T&R RADIAL.2FILM44891 1/4W 620R 5% T&R RES23746 21/64 X .250 OD #6 SPACER ALUMINUM25228 100N 100V 5%CAP T&R RADIAL.2FILM34823 1/4W 1K 5% T&R RES63751 SNAP IN 5/16 SPACER RICHCO35314 100N 50V 10%CAP T&R BEAD X7R44981 1/4W 1K 5%MINI T&R RES63739 CUSTOM .4 LED SPACER65229 150N 63V 10%CAP T&R RADIAL.2FILM44854 1/4W 1K2 5% T&R RES13743 SNAP ON 0.5 SPACER RICHCO105231 220N 63V 10%CAP T&R RADIAL.2FILM24718 5.0W 1K5 5% BLK RES43859 1/2 PLASTIC HEX SPACER #425882 220N 250V 10%CAP RAD POLYFILM BULK44988 1/4W 1K5 5%MINI T&R RES63858 3/4 PLASTIC HEX SPACER #445255 _1U 63V 20%CAP T&R RADIAL ELE.234791 1/4W 1K54 1% T&T RES48667 SHOULDER WASHER SWS-229 LENGTH 1/845259 _4U7 63V 20%CAP T&R RADIAL ELE.264683 1.0W 1K8 5% T&R RES28818 3/4 OD X 5/16 ID X .08 THICK WASHER25281 _10U 16V 20%CAP NONPOLAR T&R .224808 1/4W 2K 5% T&R RES63511 #6 FLAT WASHER NYLON55629 _10U 160V 20%CAP RADIAL ELECT BULK44847 1/4W 2K2 5% T&R RES28491 #10 SPLIT LOCK WASHER BO175945 _10U 63V 20%CAP T&R RADIAL ELECTR24804 1/4W 3K 5% T&R RES48850 #10 INT TOOTH LOCKWASHER BO45260 _22U 50V 20%CAP T&R RADIAL ELE.2106124 1/4W 3K 5%MINI T&R RES23502 NYLON FLAT WASHER OD.158ID.110H.07025961 _33U 16V 20%CAP NONPOLAR T&R RAD84826 1/4W 3K3 5% T&R RES43436 DPDT PUSH SW PCMT H BREAK B4 MAKE35267 100U 25V 20%CAP T&R RADIAL ELE.234756 1/4W 4K120 0.1% * T&R RES23587 DPDT ROKR SW QUIK 250 AC/PWR IEC6515630 330U 25V 20%CAP RADIAL ELECT BULK64827 1/4W 4K7 5% T&R RES83705 4P3T SLID SW PCMT H15621 470U 63V 20%CAP RADIAL ELECT BULK44982 1/4W 4K7 5%MINI T&R RES63417 PC SCREW TERMINAL PC MOUNT15618 470U 25V 20%CAP RADIAL ELECT BULK14887 1/4W 7K5 5% T&R RES57584 SQUARE-CUT O RING FOR AP AIR FILTER15895 6800U 63V 20%CAP RADIAL ELECT BULK164663 1/2W 8K2 5% T&R RES28432 AP SERIES AIR GRILL14520 10K TRIM POT (ENCLOSED)24990 1/4W 8K2 5%MINI T&R RES21196 AP4020 T?RD14390 _10K AUDIO DETENT STYLEP2216MM24762 1/4W 9K760 0.1% * T&R RES8= critical conponentsRadioFans.CN 收音机爱 好者资料库550 Granite Court, Pickering, Ontartio CANADA L1W-3Y84625 Witmer Industrial Estate, Niagara Falls, New York USA 14305SERVICE MANUAL1Yorkville Sound http:/550 Granite Court, Pickering, Ontartio CANADA L1W-3Y84625 Witmer Industrial Estate, Niagara Falls, New York USA 14305SERVICE MANUAL1Yorkville Sound http:/Y Yo or rk kv vi il ll le e A AP P4 40 02 20 0 P Po ow we er r A Am mp pl li if fi ie er rM M1 11 12 29 9 “ “T TH HE E I IN NP PU UT T B BO OA AR RD D” ”The input board processes the audio signal from the input jacks to the volume controlboard, (M1128).Each channel consists of a balanced gain stage, switchable subsonic filter, and astereo / mono / bridge switch.Looking at the left channel, the balanced input, (XLR Jack) and unbalanced input(phone jack) are wired in parallel to the input of a balanced operational amplifier, (U4).The gain of this stage is 0.82 (-1.3dB) balanced and 1.6 (4.0dB) unbalanced. ResistorsR25, R27 along with capacitors C11 and C12 form a radio interference elimination filter.Switch S1 selects the cutoff frequency of the hi-pass subsonic filter.The subsonicfilter provides a 20Hz or 40 Hz high pass filter.The filter consists of a tee network onthe input of U3 along with R10, R28, C29 and C30, C33 and C34.The gain is 1 (0dB)in the passband, (above 100Hz).The audio signals from the input board M1129 pass through the 14 conductor cableto board M1128.M M1 11 12 28 8 “ “V VO OL LU UM ME E C CO ON NT TR RO OL L B BO OA AR RD D” ”This board contains: the front panel audio gain controls the front panel indicating LEDs (power, protect, activity and clip). the audio limitersCircuit Explanation: The left channel of the circuit is explained.(Refer to the schematic of M1128 as the sections of the circuit are explained.)The audio signal out of M1129 passes through volume control P2 and the desiredlevel enters U2 through pin 6. U2 is set for a gain of 5 (14dB) when the volume controlis in the fully clockwise position.The AP4020s defeatable limiter is built around LD8. LD8 is an opto-resistive cellcomprising of an LED that shines on a photocell. As the LED in the LD8 becomesbrighter, the resistance of the photocell decreases, placing more of the audio signal onpin 5 (non-inverti