User Manual SQ 45 SQ 4 5 High Performance Power Ampliﬁer LBB 1342, 1343, 1344, 1346, 1347, 1348 Philips Communication & Security Systems...
ENGLISH Instructions for use page 1 TABLE OF CONTENTS Introduction page 1 Installation Controls Technical data...
SQ 4 5 Fig. 1 - Front view Fig. 2 - Rear view Fig. 3 - Top view...
BLUE BLUE BLUE BLUE 240V 220V - 230V 127V 110V Fig. 4 - Mains connections 0V + 48 V DC Emergency battery supply Remote switch Open = DC power ON Closed = DC power OFF Fig. 5 - Battery supply CALL TEST INPUT 100V...
ENGLISH 1 INTRODUCTION The SQ 45 range of high performance audio The following list gives the ampliﬁer power ampliﬁers have been designed for conﬁgurations (see ﬁg.8) available in the smooth operation in professional Public Power Ampliﬁers series 100, 70 and 50 V Address projects.
monitoring of correct ampliﬁer functioning. 2 INSTALLATION Extra equipment must be used to sample the signal; e.g The Ampliﬁer Surveillance Board 2.1 Mains supply voltage (ASB) from the SM 40 range may be used. The unit as supplied is suitable for mains The outputs may be tapped at three different voltages of 220 - 230 V AC.
A replacement plug must be wired as follows: 2.4 Input connections earth - green/yellow neutral - blue Each of the ampliﬁers in the unit is provided live - brown with three inputs: ‘priority’, ‘music’ and ‘test’. The connections for these inputs, and the WARNING: wiring for the remotely controlled selection This apparatus must be earthed.
Mate-N-Lok sockets are mounted on the rear 2.7 Input sensitivity adjustment panel, (ﬁg. 2). These are provided with The ‘priority’ input sensitivity is optimised corresponding plugs, and serve primarily as for use with the SM 40 or SM 30 system, transformer output connections to a variety and pre-set at 1 V on delivery.
systems, all similar loudspeaker terminals (in 3 CONTROLS (see ﬁg. 1) most cases one terminal is marked with a red dot) must be connected to the same wire on 1 Mains on/off switch. the distribution cable. 2 Sensitivity control pre-set for ch-1, ch-2, ch-3 and ch-4 ‘music’...
T echnical Data SUPPLY Mains supply - voltage : 110 - 127 - 220/230 - 240 Volt at 50/60 Hz - inrush current limiter : 30 A Emergency battery supply - voltage : +48 V (polarity protected with ref. to ground) - inrush current limiter : 1 A Power consumption (max.
OUTPUT Output protection - The circuit is protected against any misloading, short circuit and oscillation on driving with any frequency. - The ampliﬁer can withstand (without any damage) switching-on and switching-off of the power modules while delivering full output power and in case neither an input nor an output has been connected.
TERMINALS TERMINALS SM40 EXTENSION 600 mm 600 mm FRONT VIEW Fig.11 19” Rack mounting...
- Air gap for exit air flow (Min 400 cm 2 ). - Luftspalt fur Abluft (Min 400 cm 2 ). - Spleet voor afvoer luchtstroom (Min 400 cm 2 ). - Rendija de ventilacion para salida de corriente de aire (Min 400 cm 2 ). COOLING FANS - Canal d'evacuation du flux d'air (Min 400 cm 2 ).
Channel 2 Channel 3 Channel 1 Channel 4 100 V 100 V 100 V 100 V 70 V 70 V 70 V 70 V 50 V 50 V 50 V 50 V Fig.7 Loudspeaker connections...