User manual ELECTRO-VOICE 658 DATASHEET
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Manual abstract: user guide ELECTRO-VOICE 658DATASHEET
Detailed instructions for use are in the User's Guide.
[. . . ] NE PAS OUVRIR.
DC I NPUT 24V
CIRC UIT T O CH ASSIS SWITCH
GROU NDED U NGRO UND ED
VO R ÖF F NEN DES G ER ÄTES NET Z ST ECKER Z IEHEN
1 23 45
T FOR 230V 4A T8A F OR 115V
NO U SER SER VICEABLE PARTS IN E. REFER SERVIC SID ING TO QUALIFIED SERVICE PERSONNEL.
VOLTAGE SELECT OR 115V 230V
AC MAINS INPUT 115V /230V AC 50-60 Hz
M ADE IN GERMANY
CAUTION: FORCONTINUED PROT ECTIONAGAINST RISK OF FIRE
REPLACE WITHSAME TYPE AND VALUE F U IND SE ICATED . B A
AD DRESS O UT PUT VO LTAGE
R ISK OF ELEC TRIC SHOCK DO N OPEN OT
THRU IN REMOTE CONTROL
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICSHOCK,
DONOT EXPOSE TH APPLIANC TO R N ORMOISTU IS E AI RE.
AVIS: RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR.
DC INPUT 24V
CIR CUIT TO C HASSIS SWITCH GR OUN DED UNGR OUN DED
P OWER OUTPUT
VO R Ö FF NEN DES G ERÄTES NET Z STECKER Z IEHEN
1 23 45
1 2 3 4 5 6 7 8 9
level meter instrument CLIP indicator Test and Reset button TEST STANDBY indicator Fault indicator PROTECT Fault indicator GROUND FAULT Mode indicator READY Ventilation louvres Mains power switch POWER
10 11 12 13 14 15 16 17 18
Mains power connector AC MAINS INPUT Mains fuse FUSE Mains VOLTAGE SELECTOR Input LEVEL control INPUT socket THRU socket REMOTE CONTROL connector POWER OUTPUT Ventilation louvres
19 20 21 22 23 A
CIRCUIT TO CHASSIS SWITCH DC INPUT 24V = (battery) IDENT ADDRESS switch REMOTE CONTROL connectors STATUS indicator locking screws power supply printed board
locking screws INPUT MODULE
Performance Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] In case a floating input is needed, it is necessary to install the optional extension NRS 90208 (see also paragraph 8. 3). On the general input module NRS 90225 the input level is set with the level control (13). For the remote control module NRS 90222 the input level is determined by the setting of the internal electronic level control of the PROMATRIX manager DPM 4000 (please also refer to the PROMATRIX handbook).
figure 1 connections of the input sockets
figure 2 LF cable for coupling two amplifiers DPA 41xx 5. Outputs 5. 1 POWER OUTPUT The power output is balanced and off-ground potential. The output is factory-configured for the connection of 100V loudspeaker systems. Connection has to be performed by inserting the supplied 5-pole plug into the power output socket (17). Switching the output voltage to 70V, 50V or to low impedance operation (4 ohms) is possible using the plug-in bridge B411 on the printed board assembly 84187 (DPA 4120) respectively 84175 (658) (see also paragraph 7).
figure 3 connection of the power output 5. 2 POWER OUTPUT for 100V (70V or 50V) loudspeaker systems If the distance between the amplifier and the loudspeakers exceeds 50 m, it is recommended to operate the speaker systems using 100V matching transformers, to reduce line attenuation. This additionally offers a simple way of distributing the output power capacity. In this way it is possible to connect a maximum of as many loudspeaker systems as it takes until the total power consumption of the entire speaker network equals the power output capacity
of 200W (connection impedance 50 ohms) with the DPA 4120, respectively 400W (connection impedance 25 ohms) with the 658. Connection is performed using the 100V output (17) (see also figure 3). In a few special cases it is also possible to operate the loudspeaker systems with 70V or 50V output voltage (see also paragraph 7). After eliminating the cause for the ground fault, pressing the TEST button (3) resets the GROUND FAULT indicator (6) (see also paragraph 8. 5. 2).
6. 5 Level meter and CLIP indicator The green LED-indicators -13dB and 0dB (1) together with the red CLIP-LED (2) allow to monitor the output level, effectively avoiding overdrive conditions that lead to distortion and overload at the power outputs which could damage the connected loudspeaker systems. - If the red CLIP-LED (2) shortly lights during program peaks, maximum non-distorted modulation is achieved. - Continuous lighting or blinking of the red CLIP-LED (2) signals overdrive. - If the green LED indicator (1) does not light or is only briefly lit with the red CLIP-LED blinking at the same time, this signals the encountering of an overload or short-circuit condition at the output. Caution During normal operation the red CLIP-LED should only light briefly and shortly!
7. Switching the output voltage (only to be performed by a qualified service technician!) The DPA 4120 and 658 amplifiers allow the connection of 50V, 70V, 100V or low-impedance loudspeaker systems (4 ohms). Switching the output voltage to 4 ohms, 50V or 70V can be performed by changing the bridge B411 on the power amplifier printed board assembly 84187 (DPA 4120) or 84175 (658): Caution Before opening the appliance, make sure to disconnect the mains and/or battery power source!
- To open the appliance, the top panel has to be removed. - The bridge B411 (yellow wire) has to be removed from the contact B407 and re-attached to the desired contact (see table 1) (see also figure 8 respectively figure 9). - he coding-bridges S405 and S406 for the output recognition have to be inserted according to the illustration in figure 5. (the inserted coding-bridge is marked in black) The top panel has to be re-attached.
By using a waterproof marker pen and after switching the output voltage, the newly set value has to be marked in the filed "OUTPUT VOLTAGE" on the rear panel of the appliance.
output 100 V 70 V 50 V 4 ohms
bridge B411 to B407 B408 B409 B410
table 1 bridge B411 settings switching the output voltage
figure 5 coding-bridges S405 / S406 settings output recognition OUTPUT CONFIG
It is possible that during operation shock-hazard output voltages can be present at the POWER OUTPUT connector (>34V peak value). Thus, the connected loudspeakers have to be installed in accordance to applicable security standards and regulations (see also paragraph 8. 5. 2).
8. [. . . ] After releasing the button, the indication and the fault message are maintained. The TEST button (3) has to be used to reset the ground fault surveillance function. For further details on checking the function with the REMOTE MODULE NRS 90222 being included in your installation, please refer to the PROMATRIX handbook. Note 19"-case and 19"-rack-shelf system installation Operation of the power amplifiers DPA 4120 and 658 with enclosure cover plates detached is strictly prohibited.
When mounting the power amplifiers within rack-cases or rack-shelf systems make sure to provide sufficient airflow. [. . . ]
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