270242 - Service Manual
Contents
1. POWERFACTOR DIGITAL POWER AMPLIFIER POWERFACTOR DIGITAL POWER AMPLIFIER POWERFACTOR DIGITAL POWER AMPLIFIER 2nd Edition i CIB I q Rll 470E I Assistance Procedure WARRANTY CONDITIONS The GM warranty validity will depend on the integrity of the seal applied on the cover s edge back side of each product which must not be broken or removed for any reason by the user and or the GM Service Centre otherwise the validity will be lost as penalty FIRST LEVEL ASSISTANCE SERVICE made by GM Service Center The seal includes all the electronics of the power amplifier module with the exception of the Lem control panel assembly which is accessible by means of four screws with hexagonal head We therefore authorize only the first level assistance relevant to the Lem control panel assembly see the spare parts mentioned below and to the faultiness checking of the power amplifier module SECOND LEVEL ASSISTANCE SERVICE made by GM Italy The second level assistance on the amplifier will be made directly by GM Italy The distributor service centre will have to send GM Italy the faulty equipment and GM Italy will ship the equipment under temporary replacement if requested PROCEDURE made by GM Service Center The correct procedure for getting a second level assistance is the following one 1 Please fill in properly the SERVICE CARD wi2. Ap POWERFACTOR 3 THD Vs Power 4 Ohm POWERFACTOR 5 Intermodulation DIM 100 Vs Power Ap 08 POWERFACTOR 3 THD Vs Freg 8 Ohm 1 3 rated output power POWERFACTOR 5 Intermodulation SMPTE Vs Power Ap POWERFACTOR 5 THD Vs Power 4 Ohm POWERFACTOR 5 Ap THD Vs Freq 8 Ohm 1 3 rated output power Alp POWERFACTOR 7 Intermodulation DIM 100 Vs Power Ap POWERFACTOR 7 Intermodulation SMPTE Vs Power Ap POWERFACTOR 7 THD Vs Power 4 Ohm Ap POWERFACTOR 7 THD Vs Freq 8 Ohm 1 3 rated output power Ap Q 10 THIS PAGE IS INTENTIONALLY LEFT BLANK gt BENERALMUSIE SERVICE CARD Fax to 39 0 541 957 404 GENERALMUSIC S p A Italy Att S A T Department SERVICE REQUEST fill in by Service Center NOTE fill in with defective equipment data as referred exactly in the back label Under Warranty YES NO NOTE if YES fax the WARRANTY CERTIFICATE also Brief Explanation OF defect assaka a Service Center addressee Name Address Post code ns Ciara E
3. Data dad a a Firma e Timbro ensure Richiesta dell apparecchio temporaneo LI SI LJ NO NOTA tutte le spese di spedizione dell apparecchio temporaneo sono sempre a carico del cliente finale AUTORIZZAZIONE RIPARAZIONE compilata da GM tad N Autorizzazione Inviare l unita difettosa all indirizzo con le modalita di spedizione specificati VERRA ERES Firma e Riferimenti dell apparecchio temporaneo se richiesto Consegnato tramite Riferimento spedizione INFORMAZIONI RIPARAZIONE compilata da GM Italia Consegnato tramite Riferimento spedizione E a INFORMAZIONI RESTITUZIONE APPARECCHIO TEMPORANEO compilata dal Centro Assistenza Autorizzat Consegnato tramite Datel aan ten Riferimento Spedizione CO RE OTIS NOTA Faxare queste info sulla spedizione solo quando avrai consegnato l apparecchio temporaneo al corriere MEMO
4. S p A ITALY CKD DSK PART 1 1 SCHEMATIC DIAGRAM POWERFACTOR 3 5 7 ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT APP REV 15 03 00 CONTROLS PANEL BOARD WRITTEN CONSENT BY GENERALMUSIC 06 POWERFACTOR SERIES TECHNICAL SPECIFICATIONS POWER SPECIFICATIONS POWERFACTOR 3 POWERFACTOR5 POWERFACTOR 7 EIAJ impulse output power 1500 1500 2500 2500 3500 3500 1kHz THD maximum 1 820 820 1360 1360 1910 1910 Both channels 450 450 750 750 1050 1050 DIGAM DIGital AMplifier and PWM Pulse Width Modulation Full Switching output amplification Efficiency stage using a 250KHz sampling rate new D A at any sound level power conversion and other dedicated devices are the circuits used in these high technology amplifiers to achieve their high performances ELECTRICAL SPECIFICATIONS NPUT SENSITIVITY NPUT IMPEDANCE FREQUENCY RESPONSE balance 710940000 Hz voraeGanN s me suEwmaE j 50 VS DAMPING FACTOR 00 00 f0iz 400 1 TT 00 e lt 0 5 from 0 1W to full power typical lt 0 1 lt 0 5 from 0 1W to full power typical lt 0 1 lt 0 02 from 0 1W to full power typical lt 0 01 Harmonic distortion THD ntermodulation distortion SMPTE ntermodulation distortion DIM 100 PROTECTIONS Short circuit and over current protection for loads lt 2ohm When the protection trips the led PROTECT lights
5. up and the relative channel is muted Thermal protection with three operating levels 1 Normal condition The fan flow air from front to rear slits according with the temperature level To ensuring the normal condition the airflow must be unubstructed from rack fly cases or dust AMPLIFIER Li 2 Safety condition When the temperature reaches 60 C the protection circuit gradually reduces the output gain and the TEMP led flashes 3 Protected condition When the temperature exceeds 70 C all the channels are muted until safe temperature level is restored the TEMP led lights steadily DC offset current protection When the protection trips the led PROTECT lights up and the relative channel is muted Muting circuit at Power on and off High frequency protections Two dedicated device one for each channel filters internal VHF signals and external RF interferences outside the audio range its activity is indicateted by means of HI FREQ leds Soft Clipping protections Two clip limiters one for each channel prevent distortions due to excessive input signals LOUDSPEAKERS Their activities are displayed by the VU Meters Green leds indicate normal running conditions First yellow led lights up at 3dB Second yellow led lights up at OdB Red Led lights up at 4dB and indicates the interventions of the soft clip circuit it must lights up only occasionally POWERFACTOR SERIES TECHNICAL SPECIFICATIONS GENERAL SPECIFICATIONS POWERFACT
6. AS COUNTY are Phone VAT registration number EU countries ONlY a nun nun nennen nennen nenn Date Tao SIGH Se SAMP sae ae Request of temporary equipment _J YES 1 NO NOTE all freight charges of temporary equipmet is always debited to the final customer REPAIRING AUTHORIZATION fill in by GM Italy Authorization N eecceccceccecccccce Ship the defective unit to the below address and shipment conditions RTP PRE TTT TOTO Sign SSE BD S da Temporary equipment references if requested Delivered by means of Shipmentreferement REPAIRING INFO fill in by GM Ital Delivered by means of S alla eoa idu Rs Shipment referement M TEMPORARY EQUIPMENT RETURNING INFO fill in by SERVICE CENT Delivered by means of Dri kasus de Shipment referement IR E ELE NOTE Fax the shipment info only just you have delivered the temporary equipment at the carrier 110 lt gt BENERALMUSI SERVICE CARD Fax a 39 0 541 957 404 GENERALMUSIC S p A Italy Att S A T Department RICHIESTA DI ASSISTENZA compilata dal Centro Assistenza Autorizzato NOTA compilare con i dati dell apparecchio difettoso come riportati esattamente nella targhetta posteriore In Garanzia E SI LINO NOTA se SI faxare anche il Certificato di Garanzia Breve spiegazione del difetto szene RR EEE anh Centro di Assistenza mittente Nome Indirizzo Codice Postal
7. OR3 POWERFACTOR5 POWERFACTOR 7 ON OFF switch CONTROLS IIS Input level control for each channel SIGNAL LEVEL 2 x 10 LED bar PROTECT 2 red LEDs HI FREQ 2 yellow LEDs INDICATORS SIGNAL 2 green LEDs ON READY 1 green LED TEMP 1 red LED INPUT 1 XLR F 1 XLR M in parallel for each channel CONNECTORS OUTPUT 1 4 way SPEAKON for each channel 230Vac 15 115Vac 15 2000W 3400W 4800W The Soft Start Circuit is a device that allows to avoid SSC high energy consumption when the unit is switched on POWER SUPPLY The Active Power Factor Correction circuit parts of the switching supply circuit simulates a pure resistive load on the mains line this permits to ensure almost APFC total stabilization of the supply voltage of the output stage obtaining a perfect dynamic capacity on PA systems without over dimension the power supply of the mains line Supplied with the unit and terminated with a Neutrik Powercon type NAC3FCA at unit side the other side mains line must be equipped with a right plug at MAINS CABLE least 20A current capacity and respecting the following connections Blue wire N Neutral Brown wire L Line Green Yellow Earth Ground Ge i 483x44x450 mm WxHxD WEIGHT Be 95 kg ATTENTION These amplifiers cannot be used in bridge mode this is due to the PWM final stage structure 70 POWERFACTOR 3 Intermodulation DIM 100 Vs Power Ap POWERFACTOR 3 Intermodulation SMPTE Vs Power
8. OWER AMPLIFIER MODULE CHI MALE LINK IN FEMALE OVERCURRENT CONTROL PANEL lu SENS ING k 1 GND ERROR MIN MAX OVERLAP AMP MOD L IMIT CONTROL POWER POWER SWITCH SWITCH 4 e u y le POSITNE AUDIO OUTPUT 1 GND z ANALOG PWM OUTPUT gt PROCESSOR MODULATOR FILTER Ly 3 NEGATIVE AUDIO OUTPUT E 4 E 2 a gt E G a POWER POWER SWITCH SWITCH HF PERM CLIP THERMAL NOISE SIGNAL SIGNAL LIMITER CONTROL SHAPING 4 4 CRYSTAL RAMP OVERCURRENT osc GENERATOR SENSING OVERCURRENT PROTECTION FAULT LOGIC 4 gt DRIVER THERMAL CONTROL ISOLATION CONTROL BARRIER gt gt AUXILIARY AUXILIARY SUPPLY VOLTAGE nn gt RECTIFIER HF POWER HF POWER RECTIFIER HF POWER RECTIFIER BREAKER i al a HF STORAGE SWITCHES TRANSFORMER HF STORAGE SWITCHES LF STORAGE PWM BOOST le 4 CONVERTER CONTROL OVERCURRENT ROL PA CONTROL PANEL le ERCORGE ja Ly 4 1 END MIN MAX OVERLAP MOD LIMIT CONTROL POWER POWER SWITCH SWITCH e POSITIVE AUDIO OUTPUT i ANALOG PWM z u OUTPUT o PROCESSOR MODULATOR E Li 4 NEGATIVE AUDIO OUTPUT 5 gt FTA E 3 POWER POWER SWITCH SWITCH HF PERM CLIP THE
9. RMAL SE SIGNAL SIGNAL LIMITER CONTROL SHAPING 1 RAMP OVERCURRENT Generator fe ERCUREE A POWER AMPLIFIER MODULE CH2 DRW BOCCATO 550645 PCB GENERALMUSIC S p A ITALY CKD DSK PART 1 1 APP REV 16 03 00 SCHEMATIC DIAGRAM POWERFACTOR 3 5 7 BLOCK DIAGRAM ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT BY GENERALMUSIC 04 PWS758000 CONTROLS PANEL BOARD 12V 12V U2 A LM3915 U1 A LM3915 VU METER CHI VU METER DOT BAR DISPLAY DRIVER DOT BAR DISPLAY DRIVE LM3915 LM3915 POTL 470E POTR 470E R15 909E 909E TEMP HI FREQ CHI READY PROTECT CHI SIGNAL CH2 VUMETER CH2 HI FREQ CH2 VUMETER CHI LE26 RIZ IK L PROTECT CH2 NC PROTECT gt C gt SIGNAL CHI GND LE27 R13 1K LE24 DI L3 Hi FREQ DI CENPOT CHI MAXPOT CHI a CENPOT CH2 MAXPOT CH2 Md LE28 R14 1K LE25 NC SIGNAL 12 NC DI pl xx Md 12V 12V DRW BOCCATO DwG 550646 PCBH DA22 FR4 GENERALMUSIC
10. are Phone VAT registration number EU countries Oly Essie saia aa Aaaa ais Date T SIGH Se SAMP E taa ae Request of temporary equipment _J YES 1 NO NOTE all freight charges of temporary equipmet is always debited to the final customer REPAIRING AUTHORIZATION fill in by GM Italy Authorization N eecceccceccecccccce Ship the defective unit to the below address and shipment conditions RTP PRE TTT TOTO Sign SSE BD S da Temporary equipment references if requested Delivered by means of Shipmentreferement REPAIRING INFO fill in by GM Ital Delivered by means of S alla eoa idu Rs Shipment referement M TEMPORARY EQUIPMENT RETURNING INFO fill in by SERVICE CENT Delivered by means of Dri kasus de Shipment referement E E ELE NOTE Fax the shipment info only just you have delivered the temporary equipment at the carrier 130 lt gt ENERALMUSIE SERVICE CARD Fax a 39 0 541 957 404 GENERALMUSIC S p A Italy Att S A T Department RICHIESTA DI ASSISTENZA Autorizzato NOTA compilare con i dati dell apparecchio difettoso come riportati esattamente nella targhetta posteriore compilata dal Centro Assistenza In Garanzia LJ SI LJ NO NOTA se SI faxare anche il Certificato di Garanzia Breve spiegazione del difetto u un dies a ii Centro di Assistenza mittente Nome Indirizzo Codice Postale Telefono Partita e E
11. e Telefono Partita IVA ETE Data a Firmae Timbro en Richiesta dell apparecchio temporaneo LI SI 1 NO NOTA tutte le spese di spedizione dell apparecchio temporaneo sono sempre a carico del cliente finale AUTORIZZAZIONE RIPARAZIONE compilata da GM Italia N Autorizzazione Inviare l unita difettosa all indirizzo con le modalita di spedizione specificati EET Firma e Timbro u HH enne enn Riferimenti dell apparecchio temporaneo se richiesto Consegnato tramite Riferimento spedizione INFORMAZIONI RIPARAZIONE compilata da GM Italia Consegnato tramite iii Riferimento spedizione gt ab lie INFORMAZIONI RESTITUZIONE APPARECCHIO TEMPORANEO compilata dal Centro Assistenza Autorizzat Consegnato tramite TRA AGRARIA Dalaran een Riferimento Spedizione Em NOTA Faxare queste info sulla spedizione solo quando avrai consegnato l apparecchio temporaneo al corriere 0 12 amp BENERALMUSIE SERVICE CARD Fax to 39 0 541 957 404 GENERALMUSIC S p A Italy Att S A T Department SERVICE REQUEST fill in by Service Center NOTE fill in with defective equipment data as referred exactly in the back label Under Warranty YES NO NOTE if YES fax the WARRANTY CERTIFICATE also Brief Explanation of defect a Service Center addressee Name Address Post code diia Cily iaia COUNTY
12. th all data required particularly specify the S N relating to the Powerfactor to be repaired and briefly explaining its faultiness and stating exactly whether the equipment under temporary replacement is required or not 2 Kindly fax to GM Italy S A T Dept the SERVICE CARD and the WARRANTY CARD properly compiled only for equipment which are under guarantee in order to have the GM authorization and the indications to manage the repairing NOTE The WARRANTY CARD must be filled in the properly way otherwise its validity will be lost 3 The GM Italy S A T Dept will authorize by fax the shipment of the equipment to be repaired and a possible confirmation about a new equipment to send you under temporary replacement REPAIRING AND FREIGHT CHARGES 1 The freight charges relating to the temporary equipment will be always debited to the final user 2 The repairing costs of equipment under warranty will be charged to GM Italy 3 The repairing costs and the freight charges of equipment out of warranty will be invoiced by GM Italy to the addressee within 30 days starting from the equipment return OTHER CONDITIONS 1 GM Italy answers for the equipment repairing and the relating shipment to the addressee within 30 days from the receipt date of the same equipment 2 The temporary equipment ought to be sent back to GM Italy within 5 days from receipt of the repaired one In case the temporary equipment should not return to GM Italy it will be automaticall
13. y invoiced after 30 days from the date of the repaired equipment shipment Ref Code Description 277339 Owner s Manual English Italian PWS887000 Mains Cable with Neutrik NAC3FCA plug PWS667003 Lem Rack Support ME000017 PWS667000 PowerFactor Control Panel ME000018 PWS667001 PowerFactor 5 Control Panel ME000018 PWS667005 PowerFactor 7 Control Panel ME000018 PWS110000 Power Switch 13000001 PWS667004 Potentiometer Knob MA000001 PWS768000 Controls Panel PCB Assembly DA22 FR04 PWS100000 LM3915N Vu Meter IC 1C000015 PWS074000 4700hm Lin Rot Potentiometer PO000001 PWS080002 Green Led LE000005 PWS080000 Yellow Led LE000003 PWS080001 Red Led LE000004 Fax directly to GM Italy 39 0 541 957 404 Address GENERALMUSIG S p A Sales Division 47842 S Giovanni in Marignano RN ITALY Via delle Rose 12 Phone 39 0 541 959511 Fax 39 0 541 957404 GENERALMUSIG on the NET http www generalmusic com mp Sere RED O 02 o es Ne dc bu SE O 09 Ajddns oy J QUINN eles I pON De LH Nano E INdINO 7 HE L c O O 35 Be Ga N H NM BL 97 40 y 3 MO 0 E 00000000000000000 e e Q leued oddns eui JO smaJos Duixij y o WWG Z Jeuueds poi e esf 30 INPUTS CHI IN INPUTS CH2 MALE LINK FEMALE P
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