Elen Powerfactor3, Powerfactor5, Powerfactor7 Service Manual

1 1

1 1

1

❏ ❏

❏ ❏

❏

SERVICE MANUAL

CODE: 270242

2nd Edition

❏ ❏

❏ ❏

❏

22

22

2

Spare Part List

GENERALMUSIC S.p.A. Sales Division: 47842 S.Giovanni in Marignano (RN) ITALY - Via delle Rose, 12
Phone [phone] - Fax [phone] - GENERALMUSIC on the NET: http://www.generalmusic.com

Address

Fax directly to GM Italy: ++39-(0)541-957-404

✒

☎

Ref Code Description

277339 Owner's Manual (English, Italian)

PWS887000 Mains Cable with Neutrik NAC3FCA plug
1 PWS667003 "Lem" Rack Support (ME000017)
2 PWS667000 PowerFactor 3 Control Panel (ME000018)
3 PWS667001 PowerFactor 5 Control Panel (ME000018)
12 PWS667005 PowerFactor 7 Control Panel (ME000018)
4 PWS110000 Power Switch (IN000001)
5 PWS667004 Potentiometer Knob (MA000001)
6 PWS768000 Controls Panel PCB Assembly (DA22 FR04)
7 PWS100000 LM3915N Vu-Meter IC (IC000015)
8 PWS074000 470ohm Lin Rot Potentiometer (PO000001)
9 PWS080002 Green Led (LE000005)
10 PWS080000 Yellow Led (LE000003)
11 PWS080001 Red Led (LE000004)

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 with 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 automatically invoiced after 30 days from the date of the repaired equipment
shipment.

Assistance Procedure

✔

✔

✔

✔

✔

✔

✔

3 3

3 3

3

❏ ❏

❏ ❏

❏

WARRANTY

VOID

IF SEAL

IS BROKEN

Model

Serial Number

AC supply specifications

Warranty Seal

5

2

3

1

4

8

87

7 9 9 9

10

6

11

11

11

10910

9

Use a hexagonal rod spanner of 2.5mm to uncrews the fixing screws of the rack support control panel.

11

12

❏ ❏

❏ ❏

❏

44

44

4

5 5

5 5

5

❏ ❏

❏ ❏

❏

❏ ❏

❏ ❏

❏

66

66

6

POWER SPECIFICATIONS

POWERFACTOR 3 POWERFACTOR 5 POWERFACTOR 7

EIAJ impulse output power

1kHz, THD maximum 1%
Both channels

2 Ohms
4 Ohms
8 Ohms

1500+1500

820+820
450+450

2500+2500
1360+1360

750+750

3500+3500
1910+1910
1050+1050

ELECTRICAL SPECIFICATIONS

INPUT SENSITIVITY
INPUT IMPEDANCE
FREQUENCY RESPONSE
VOLTAGE GAIN +38 dB +40 dB +41 dB
SLEW RATE
DAMPING FACTOR
CROSSTALK
S/N ratio
Harmonic distortion THD
Intermodulation distortion SMPTE
Intermodulation distortion DIM 100

PROTECTIONS

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.
Their activities are displayed by the VU-Meters:

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.

Green leds indicate normal running conditions.
First yellow led lights up at -3dB.
Second yellow led lights up at 0dB.
Red Led lights up at +4dB and indicates the interventions of the soft clip
circuit, it must lights up only occasionally.

2) Safety condition: When the temperature reaches 60˚C the protection
circuit gradually reduces the output gain and the TEMP led flashes.

50 V/µs

100Hz = 400, 10kHz = 400

POWERFACTOR SERIES • TECHNICAL SPECIFICATIONS

10 kOhms (balanced)

10÷40000 Hz (-0.5dB)

0dB (0.775Vrms)

power conversion and other dedicated devices are
the circuits used in these high technology amplifiers to
achieve their high performances.

Efficiency

(at any sound level)

95%

DIGAM (DIGital AMplifier) and PWM (Pulse Width
Modulation), "Full Switching" output amplification
stage using a 250KHz sampling rate, new D/A

AMPLIFIER

LOUDSPEAKERS

-90 dB

-100 dB
<0.5% from 0.1W to full power (typical <0.1%)
<0.5% from 0.1W to full power (typical <0.1%)

<0.02% from 0.1W to full power (typical <0.01%)

Short circuit and over current protection for loads < 2ohm. When the
protection trips the led PROTECT lights 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.

7 7

7 7

7

❏ ❏

❏ ❏

❏

GENERAL SPECIFICATIONS

POWERFACTOR 3 POWERFACTOR 5 POWERFACTOR 7

CONTROLS

INDICATORS

CONNECTORS

INPUT

OUTPUT

Europe

U.S.

Power requirement 2000W 3400W 4800W

SSC

APFC

MAINS CABLE

DIMENSIONS
WEIGHT

ATTENTION

These amplifiers cannot be used in bridge mode, this is due to the
PWM final stage structure.

9.5 kg

483x44x450 mm (WxHxD)

115Vac ±15%

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
least 20A current capacity and respecting the
following connections:
Blue wire = N - Neutral
Brown wire = L - Line
Green/Yellow = - Earth / Ground

POWERFACTOR SERIES • TECHNICAL SPECIFICATIONS

POWER SUPPLY

230Vac ±15%

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
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.

The "Soft Start Circuit" is a device that allows to avoid
high energy consumption when the unit is switched
on.

ON/OFF switch

Input level control for each channel

SIGNAL LEVEL: 2 x 10-LED bar

PROTECT: 2 red LEDs

HI-FREQ: 2 yellow LEDs

SIGNAL: 2 green LEDs

ON/READY: 1 green LED

TEMP: 1 red LED

1 XLR-F + 1 XLR-M in parallel for each channel

1 4-way SPEAKON for each channel

❏ ❏

❏ ❏

❏

88

88

8

9 9

9 9

9

❏ ❏

❏ ❏

❏

❏ ❏

❏ ❏

❏

1010

1010

10

THIS PAGE IS INTENTIONALLY LEFT BLANK.

11 11

11 11

11

❏ ❏

❏ ❏

❏

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

MODEL : ................................................ SER.N°. : ..................................................

NOTE: fill in with defective equipment data as referred exactly in the back label.

Under Warranty ? o YES o NO

Service Center (addressee)

Name : .........................................................................................................................

Address : .........................................................................................................................

Post code : ............................ City: .......................................... Country: ............................

Phone : ........................................... Fax: ......................................................................

VAT registration number (EU countries only):........................................................................

Date : ........................................... Sign & Stamp: .......................................................

Request of temporary equipment : o YES o NO

NOTE: all freight charges of temporary equipmet is always debited to the final customer.

Temporary equipment references (if requested):

MODEL : ................................................ SER.N°. : ..................................................

Delivered by means of :................................................................................................

Shipment referement :................................................................................................

Authorization N°: ..................

Delivered by means of :................................................. Date: .....................................

Shipment referement :..................................................Cost: .....................................

Delivered by means of :................................................. Date: .....................................

Shipment referement :................................................................................................

NOTE: Fax the shipment info only just you have delivered the temporary equipment at the carrier.

TEMPORARY EQUIPMENT RETURNING INFO: fill in by SERVICE CENTER

REPAIRING INFO: fill in by GM Italy

REPAIRING AUTHORIZATION: fill in by GM Italy

Date : ........................................... Sign & Stamp: ..........................................................

NOTE: if YES, fax the WARRANTY CERTIFICATE also.

Brief explanation of defect: ...................................................................................................................................

..............................................................................................................................................................................

..............................................................................................................................................................................

..............................................................................................................................................................................

Ship the defective unit to the below address and shipment conditions:

❏ ❏

❏ ❏

❏

1212

1212

12

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

MODELLO :........................................... SER.N°. :..................................................

NOTA: compilare con i dati dellapparecchio difettoso come riportati esattamente nella targhetta posteriore.

In Garanzia ? o SI o NO

Centro di Assistenza (mittente)

Nome : .........................................................................................................................

Indirizzo : .........................................................................................................................

Codice Postale : ...................... Citta: ........................................ Provincia: ...........................

Telefono : ........................................... Fax: ......................................................................

Partita IVA: .........................................................................................................................

Data : ........................................... Firma e Timbro: ......................................................

Richiesta dell’apparecchio temporaneo : o SI o NO

NOTA: tutte le spese di spedizione dellapparecchio temporaneo sono sempre a carico del cliente finale.

Riferimenti dell’apparecchio temporaneo (se richiesto):

MODELLO :........................................... SER.N°. :..................................................

Consegnato tramite :................................................................................................

Riferimento spedizione :................................................................................................

N° Autorizzazione:.............

Consegnato tramite :................................................. Data: .....................................

Riferimento spedizione :................................................ Costo: .....................................

Consegnato tramite :................................................. Data: .....................................

Riferimento Spedizione :................................................................................................

NOTA: Faxare queste info sulla spedizione solo quando avrai consegnato lapparecchio temporaneo al corriere.

INFORMAZIONI RESTITUZIONE APPARECCHIO TEMPORANEO: compilata dal Centro Assistenza Autorizzato

INFORMAZIONI RIPARAZIONE: compilata da GM Italia

AUTORIZZAZIONE RIPARAZIONE: compilata da GM Italia

Data : ........................................... Firma e Timbro: ........................................................

NOTA: se SI faxare anche il Certificato di Garanzia.

Breve spiegazione del difetto: ...............................................................................................................................

..............................................................................................................................................................................

..............................................................................................................................................................................

..............................................................................................................................................................................

Inviare lunita difettosa allindirizzo con le modalita di spedizione
specificati:

13 13

13 13

13

❏ ❏

❏ ❏

❏



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

MODEL : ................................................ SER.N°. : ..................................................

NOTE: fill in with defective equipment data as referred exactly in the back label.

Under Warranty ? o YES o NO

Service Center (addressee)

Name : .........................................................................................................................

Address : .........................................................................................................................

Post code : ............................ City: .......................................... Country: ............................

Phone : ........................................... Fax: ......................................................................

VAT registration number (EU countries only):........................................................................

Date : ........................................... Sign & Stamp: .......................................................

Request of temporary equipment : o YES o NO

NOTE: all freight charges of temporary equipmet is always debited to the final customer.

Temporary equipment references (if requested):

MODEL : ................................................ SER.N°. : ..................................................

Delivered by means of :................................................................................................

Shipment referement :................................................................................................

Authorization N°: ..................

Delivered by means of :................................................. Date: .....................................

Shipment referement :..................................................Cost: .....................................

Delivered by means of :................................................. Date: .....................................

Shipment referement :................................................................................................

NOTE: Fax the shipment info only just you have delivered the temporary equipment at the carrier.

TEMPORARY EQUIPMENT RETURNING INFO: fill in by SERVICE CENTER

REPAIRING INFO: fill in by GM Italy

REPAIRING AUTHORIZATION: fill in by GM Italy

Date : ........................................... Sign & Stamp: ..........................................................

NOTE: if YES, fax the WARRANTY CERTIFICATE also.

Brief explanation of defect: ...................................................................................................................................

..............................................................................................................................................................................

..............................................................................................................................................................................

..............................................................................................................................................................................

Ship the defective unit to the below address and shipment conditions:

❏ ❏

❏ ❏

❏

1414

1414

14



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

MODELLO :........................................... SER.N°. :..................................................

NOTA: compilare con i dati dellapparecchio difettoso come riportati esattamente nella targhetta posteriore.

In Garanzia ? o SI o NO

Centro di Assistenza (mittente)

Nome : .........................................................................................................................

Indirizzo : .........................................................................................................................

Codice Postale : ...................... Citta: ........................................ Provincia: ...........................

Telefono : ........................................... Fax: ......................................................................

Partita IVA: .........................................................................................................................

Data : ........................................... Firma e Timbro: ......................................................

Richiesta dell’apparecchio temporaneo : o SI o NO

NOTA: tutte le spese di spedizione dellapparecchio temporaneo sono sempre a carico del cliente finale.

Riferimenti dell’apparecchio temporaneo (se richiesto):

MODELLO :........................................... SER.N°. :..................................................

Consegnato tramite :................................................................................................

Riferimento spedizione :................................................................................................

N° Autorizzazione:.............

Consegnato tramite :................................................. Data: .....................................

Riferimento spedizione :................................................ Costo: .....................................

Consegnato tramite :................................................. Data: .....................................

Riferimento Spedizione :................................................................................................

NOTA: Faxare queste info sulla spedizione solo quando avrai consegnato lapparecchio temporaneo al corriere.

INFORMAZIONI RESTITUZIONE APPARECCHIO TEMPORANEO: compilata dal Centro Assistenza Autorizzato

INFORMAZIONI RIPARAZIONE: compilata da GM

Italia

AUTORIZZAZIONE RIPARAZIONE: compilata da GM
Italia

Data : ........................................... Firma e Timbro: ........................................................

NOTA: se SI faxare anche il Certificato di Garanzia.

Breve spiegazione del difetto: ...............................................................................................................................

..............................................................................................................................................................................

..............................................................................................................................................................................

..............................................................................................................................................................................

Inviare lunita difettosa allindirizzo con le modalita di spedizione
specificati: