Manuale d’uso / di manutenzione del prodotto MA4100 del fabbricante Directed Electronics
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OWNERS MANUAL MA4100 Congratulations Endpanel Layout Features & Specifications Endpanel Layout Installation Troubleshooting Wiring Troubleshooting Power / Ground Troubleshooting Connections Troubl.
The extended use of a high powered audio system may result in hearing loss or damage. While TUBE DRIVER systems are capable of "Concer t Le vel" volumes with incredible accuracy , they are also designed for you to enjoy at more reasonable levels all of the sonic subtleties created by musicians.
1 Power Bandwidth: 5 Hz -50 KHz T otal Harmonic Distortion: 0.2% or less (A-weighted) Input T opology: Balanced Differential Input Sensitivity: 500mV - 12 volts RMS Input Impedance: 10K Ohms Output Im.
Recommended Fuse Rating f o r M A 4100 i s 1 0 0 Amps Y ou will need to install an in-line fuse or circuit breaker in the po wer wire within 18” of the battery . This fuse or circuit breaker protects y our vehicle from fire in case the po wer wire shorts to the vehicle body .
3 W arning! Y ou can mount the MA4100 in any position, even upside-down. However , yo u must maintain pr oper airflo w . Do not install your MA4100 under carpets or enclose it behind airtight panels. In trunk-mounted applications, be sure to provide venting for air circulation.
4 W arning! T o prevent a short to ground, disconnect the negative (-) terminal of the system’s battery before you begin. If the power cable shorts to ground, current will continue to flow until the short is opened, the main fuse blows, the battery explodes, or the wire melts.
5 Follow these simple instructions and ref er to the diagram belo w to make y our speaker connections: • Using at least 16 gauge wire, run wire from the speakers to the amplifier(s) using the same p.
6 Y ou can operate each pair of channels in both stereo and mono (3 channel or tri- mode) at the same time by using highpass filters (bass blockers) on the higher frequency stereo channels, and a lowpass filter (coil) on the subwoofers.
7 Input Jac ks The MA4100 includes both RCA and Mini-Din (balanced) inputs. The supplied RCA connections allow you to use the MA4100 with other brands of audio gear . Our Differential RCA inputs pro vide a dramatic improv ement in noise reduction ov er standard RCA input types.
8 Input Gain Contr ols There are two Input Gain Controls located on the end panel under the RCA input jacks. These are not volume contr ols! These controls match the output signal voltage of the source unit to the amplifier inputs.
HANDCRAFTED IN THE USA By Precision Power POWER CONNECT POWER W ARM UP 9 P ower Side 1 3 2 1. PO WER A red light indicates that the amplifiier is turned on (After warm-up sequence). 2. W ARM UP A red light indicated that the tubes are warming up. (Refer to Pg.
10 Input/Control Side L- L+ REM R+ R- L- L+ R+ R- FRONT SPEAKER OUTPUTS REAR SPEAKER OUTPUTS FRONT GAIN REAR GAIN FRONT INPUTS L R REAR INPUTS L R BALANCED INPUTS FRONT REAR DIN/RCA DIN/RCA -12dB -12dB H A N D C R A F T E D I N T H E U S A B y P r e c i s i o n P o w e r 8 9 10 11 12 17 5 4 3 26 1.
Do you have 12V at the amplifier ’s connections? 11 No Sound Is the W ARM UP LED illuminated? YES NO YES The warm up cycle can take up to 40 sec., Is there sound after that? NO Y ou’re done Is there signal on the RCA ’s? YES NO Does the amp remote (REM) have 12V? Check all connections.
12 No Sound in One Channel YES Reverse the left and right inputs. Check the pre-amp (RCA/Mini-Din) cables for open connections and make corrections. Did you find open connections? NO Y ou’re done SOUND IS NO W IN... Opposite Channel Problem is in the speaker or speaker wire of the silent channel.
Noises While the Engine is On Alternator whine: This noise changes in frequency with engine RPM. Check for: . Excessive input le vel setting on the amplifier . High resistance in cabling or corr oded and/or loose connections . P olarity of the input cables If the problem persists, check the whines and pops chec klist below .
Check each side of the amplifier independently to see if the distortion is only on one channel. Is that the case? 14 Noises While the Engine is On or Off System hiss: Distortion: Distortion is garbled sounding music. This can often be caused by a shorted speaker wire.
15 eject VOLUME BASS TREBLE RIGHT LEFT BALANCE TRAC K REVERSE FOWARD 1 2 3 4 8 7 6 5 PPI MAR KET ING DPT Trk 1 Preamp/Equalizer Source Unit Sub Passive Crossover Passive Crossover Tweeter Tweeter MidR.
AMP RCA Rear Right Input DIF. RCA Rear Left Input INPUT ATTENUATION AMP RCA Front Right Input Left Left Right Right RCA Front Left Input MINI-DIN Front Input MINI-DIN Rear Input DIF.
Three-Y ear Limited U .S.A. W arranty This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Directed Electronics MA4100 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Directed Electronics MA4100 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Directed Electronics MA4100 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Directed Electronics MA4100 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Directed Electronics MA4100, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Directed Electronics MA4100.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Directed Electronics MA4100. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Directed Electronics MA4100 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
