Stereo Power Amplifier

Transcript

Stereo Power Amplifier Operating Instructions Owner's Record The model Record and serial numbers the serial number Refer to these numbers whenever Model No. XM-?52EQX are located in the space on the bottom provided you call upon your Serial No. XM-752EQX Sony Corporation @1999 Printed of the unit. below. in USA Sony dealer regarding this product. Connections Caution • Before making any connections, disconnect the ground terminal of the car battery to avoid short circuits. • Be sure to use speakers with an adequate power rating. If you use small capacity speakers, they may be damaged. • Do not connect the e terminal of the speaker system to the car chassis, and do not connect the _ terminal of the right speaker with that of the left speaker. • Install the input and output cords away from the power supply lead as running them close together can generate some interference noise. • This unit is a high-power amplifier. Therefore, it may not perform to its full potential if used with the speaker cords supplied with the car. • If your car is equipped with a computer system for navigation or for some other purpose, do not to remove the ground wire from the car battery. If you disconnect the wire, the computer memory may be erased. To avoid short circuits when making connections, disconnect the +12 V power supply lead until all the other leads have been connected. Make the terminal connections as illustrated Note a_y_oom.chto_ *asd_soneyd,_ * Thetor_e,,,_lue_ould _._ff_an Pass the leads through the cap, connect the leads, then cover the terminals with the cap. 2 1N-re. below. Power Connection Leads ift (REM OU_ _ _[_ to a rnetal surface of the car 0 0 Car audio +12 V car battery Notes on the power supply • G_;ectthe+12Vpower_pplyleadonlyal_rallthe • Be sure to connect the ground lead of the unit securely to a metal surface of the car. A loose connection may cause the amplifier malfunction. to • Bes_re_o_m_tt_r_noteo_,ztml/eado[_e_az'az_o • Whenu_x_ac_d_owi_outap_zoe_:_onthe amplifier, cotm_tthe_input_rmiml(REMOTE) _am_ryg_ra_¥ • Usa_pow_supfifleadv_thafu_atta:t_(3OA). • P/acetJze_thepov, ersu_k_das_asposs_5/e to_ca_bare_ • Makest_ed]atthe_ads_3becol_tothe GNDterminalso[tJfisunit_velymustbelarger thanl O-Gauge(AW_- l O)orwit_these_omlareao[ marethgnSmm • Whaou._eapti_alRC-46powerar_]ff_r a_r_ng_rd, a_ultt_al_n_n_, + 12 Vend 2-Speaker System I LINE OUT L __ INPtrr ||ii Left speaker (rain. 2_.) Right speaker (min. 2_) Ford_llsontJ]es_i.ngsofsw_chesandax_trols, rderto "L_cationandFunction_ConUob. _ As a Monaural Amplifier I Car audio I LINE OUT Left channel Right channel L , - _ INPUT -J | | 0 • , L ! 0 I Right speaker Ford_ai_n_afs_td_dm.',uds. rd_to "Lo_ti_ andFurr_ndCm_ro/s," Note Makesurethatthelmeoutput,rromthecaraudiois connectedtotheja£kmarked "I.(MONO) "ontt_ unK 4 INPUT (rain. 4_1) As the Monaural Amplifier I LINE OUT for a Subwoofer _m_ iNPUT Car audio i Subwoofer Ford_ilsonthes_ir_dswitcl_andcontro_ referto "Lo_t_andFur_t_no[Cont, m_. " Note l[_uwishtov_asubv_rasammauralst_er, am_t_above. signa_th_ubv_llbetl_m_at_n_ bo_tightamtte_ou_ut_gn_s. (min. 4_) U 2.way Two System OUtl)ut channels Cm audio L LINE OUT OO00 0000 speakers (rain. 2.Q) Fullrange Use the THROUGH OUT terminal when you install more amplifiers. In this case, the signals are output as they are input. (EQUALIZER, HPF, and LPF do not work.) Notes • Ama_numar3_/_e_canbem_dto#_ THROUGHOUTtermi_I. Ifyouconnectmore than 3_,itmaycat_prob/omsuchas • Highlevellnputconm_ionmnnotu_THROUGH OUT. Four output 6 channels Subwoofers (rain. 2a) Four output channels I Car audio J INPUT L UNE OUT INPUT 0@©0 OOO0 Full range speakers (rain. 2_) Fard_ailsontt_a_gsofswit_cantrols, rderto _!_c.atkmmdF_aionofC_trals. " Note Intl_sy_an, tl_thesubwo_crswillbe _'dledbythe_ra_iofadereo_. Subwoofers (rain. 2_) _ I Dual Mode System (With a Bridged Subwoofer) ILINE OUT I Car audio C1 C2 ©° Left speaker Table of crossover values for 6 dE/octave (4 ohms) CrosSover L C1/C2 Frequency (coil)* (capacitor)* unit: mH unit: pF 50 12.7 800 80 8.2 500 100 6.2 400 130 4.7 300 150 4,2 270 200 3.3 200 260 2.4 150 400 1.6 100 609 1.0 68 800 0.8 50 1000 0.6 39 * (not supplied) Notes • Wlx_u_gpas_veamsove-n_,,_r_inanrdn-speaker systemrag_that_'s_ notlov_-t_ntho_tablefor_Bunit. • Whmlhlsla_a12tk_ci_wherebotha dx)kean&_pacitor_eusedinstries_of_'ma_'uit, sure_oconaectthespeakers. Whmneithera_e there_-va_areawill_rease_ti_yremltmg_ a_.cb-cuit-likesJtuatJoncalJsl_thea_rnplJfm'to 8 }__ Right speaker $ubwoofer unit: Hz II be _or Direct speaker cord €onnec'tion Left speaker Car audio Right speaker _Grav 1 Bl_k-sthped cord White Car audio Bit Left speaker I ,Co_] diameter : 0.3 - 1.25 mm (A_NG 22 - 16) 11 (_A_) Unit :mm (in.) High Level Input Connection White (2-SpeakerSystem) O Left speaker output Car audio Right speaker output Sortie haut-parleur droit Input cord [Not supplied) Black-stripedcord [] Left speaker (rain. 2_) Right speaker _. For details on thesettinss ofswitches and controls, refer to "Location and Function of Controls." (rain. 2_2) I Hi qh Level Input Connection Bllck-stdped cord (Asa Monaural Amplifier) Right speake¢ output Black.stdpeal_d" Left speaker output @ @ Car audio / input cord (Not supplied} J S O @ For details on the settings o[switche_ and conWoL_ re[er to "Location and Function ol"Contzois. _ High Level Input (As a Monaural Connection Amplifier for a Subwoofer) Left speaker Car audio Right speaker Input r.on:l (Not supplied) Subwoofer (min. 4_) Forde_n t_'s_ttin_swit ch_andconuo_ reftrro "Locationar_dFm_i_o[('ontro[_• 10 Installation Before Installation • Mount the unit either inside the trunk or under a seat. • Choose the mounting location carefully so that the unit will not interfere with the normal movements of the driver, and where it will not be exposed to direct sunlight or hot air from the heater, • Do not install the unit under the floor carpet, where heat dissipation from the unit would be considerably impaired. First, place the unit where you plan to install it, and mark the positions of the four screw holes on the surface of the mounting board (not supplied). Then drill the holes approximately 3 millimeters (mm) in diameter and mount the unit onto the board with the supplied mounting screws. The supplied mounting screws are 15 mm long. Therefore, make sure that the mounting board is thicker than 15 mm. e 6 ¢/,) I' /-- "t -----z 55 Unit :mm(in.) 220 18a/4l 11 Precaution • This unit is designed for negative ground 12V DC operation only. • Use speakers with an impedance of 2 to 8 ohms (4 to 8 ohms when used as a bridging amplifier). • Do not connect any active speakers (with built-in amplifiers) to the speaker terminals of the unit. Doing so may damage the active speakers. • Avoid installing the unit in areas subject to: -- high temperatures such as from direct sunlight or hot air from the heater -- rain or moisture -- dust or dirt. • If your car is parked in direct sunlight and there is a considerable rise in temperature inside the car. allow the unit to cool down before use. • When installing the unit horizontally, be sure not to cover the fins with the floor carpet etc. • If this unit is placed too close to the car radio, interference may occur. In this case, relocate the amplifier away from the car radio. • If no power is being supplied to the cassette player or tuner, check the cormectioes. • This power amplifier employs a protection circuit* to protect the transistors and speakers ff the amplifier malfunctions. Do not attempt to test the protection circuit by covering the heat sink or connecting improper loads. • Do not use the unit on a weak battery as its optimum performance depends on a good power supply. • For safety reasons, keep your car audio volume moderate so that you can stiff hear sounds outside your car. Fuse Replacement If the fuse blows, check the power connection and replace the fuse. If the fuse blows again after replacement, there may be an internal malfunction. In such a case, consult your nearest Sony dealer. Warning When replacing the fuse, be sure to use one matching the amperage stated above the fuse holder. Never use a fuse with an amperage rating exceeding the one supplied with the unit as this could damage the unit. *Protection ¢dt*uit This amplil_er is provided with a protection operates in the following cases: -- when the unit is overheated circuit that -- when a DC current is genemted -- when the speaker terminals are short-circuited. The color of the POWER/PROTECTOR indicator will change from green to red, and the unit will shut down. If this happens, turn off the connected equipment, take out the cassette tape or disc, and determine the cause of the malfunction. If the amplifier has overheated, wait until the unit cools down be[o_ using again. If you have any questions or problems concerning your unit that are not covered in this manual, please consult your nearest Sony dealer. Troubleshooting Guide The following unit. Before checklist going through will assist in the correction the checklist below, of most problems refer to the connection which you may encounter and operating with your procedures. Problem Cause/Solution The POWER/PROTECTOR The fuse is blown. --+ Replace the fuse with a new one. indicator does not light up. The ground lead is not secucely connected. ---+Fasten the ground lead securely to a metal surface of the car. t2 The voltage going Into the remote terminal is too low. • The connected master unit is not turned on. --* Turn on the master unit. • The system employs too many amplihers. ---* Use a relay. Check the battery voltage The OVER CURRENT indicator up in red. The OFFSET indicator lights The THERMAL indicator red. Alternator noise lights up in red. lights up in (10.5 - 16 V). Turn off the power switch. The speaker outputs Rectify the cause of the short-circuit. Turn off the power switch. are securely connected, The unit heats up abnormally. • Use speakers with suitable impedance. • Make sure to place the unit in a well ventilated The ground lead is not securely connected. securely to a metal point of the car. Negative speaker leads are touching away fi'om the car chassis. The sound is muffled, The FILTER selector The sound The LEVEL adjustment is too low. HPF, LPF, end EQUALIZER does work. not The DIRECT switch switch ---* Make sm'e the speaker cord and ground The power connecting leads are installed ---* Keep the leads away from the cords. is heard. are short-circuited. lead location. too close to the RCA pin cords. --* Fasten the ground the car chassis. _ lead Keep the leads is set to the "LPF" position. control is set to the "MIN _ position. is set to ON. Specifications AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL 75 watts per channel minimum 4 ohms, both channels driven than 0.04% Committee total harmonic standards. HARMONIC DISTORTION continuous average power into from 20 Hz to 20 kHz with no more distortion per Car Audio Ad Hoc Other Specifications Circuit system Inputs Outputs Speaker Maximum OTL (output transformerless) circuit Pulse power supply RCA pin jacks High level input connector Speaker terminals Through out pin jacks High-pass Low-pass Equalizer 2 - 8 _ (stereo) 4 - 8 l_ (when used as a bridging amplifier) Current filter filter Power requirements Power supply voltage impedance drain Dimensions outputs 1S0 watts x 2 (at 4 £_) 400 watts (monaural. at 4 _) Rated outputs (supply voltage at 14.4 V) 75 watts per channel (20 Hz 20 kHz. 0.04 % THD. at 4 _) 100 watts per channel (20 Hz 20 kHz, 0.1% THD, at 2 D) 200 watts (monaural) (20 Hz 20 kHz, 0.1% THD, at 4 l)) Frequency response 5 Hz - 100 kHz (_dg) Harmonic distortion 0.005 % or less (at lkHz, 4 _) Input level adjustment range 0.2 - 4.0 V (RCA pin jacks) 8.4 - 8.0 V (High level inpu0 50 - 200 Hz, -12 dB/nct 50 - 200 Hz, -12 dB/nct 50 Hz, 200 Hz, 800 Hz, 3.2 kHz, 12,8kHz ±12 dB 12 V DC car battery (negative ground) Mass Supplied 10.5- 16V At rated output: 20 A Remote input: 1.5 mA Approx. 260 × 55 × 220 mm (10 I/4 × 2 h/4 × 83/4 in.) (I/h/p) not incl. projecting parts and controls Approx. 2.2 kg (4 lb. 14 oz. ) not incl. accessories accessories Mounting screws Terminal cap (I) Optional (4), accessories Connectin 8 cord for power amplifier RC-46 Design and specifications without notice. are subject to change Features • Maximum power output of 150 watts per channel (at 4 ohms). • This unit can be used as a monaural amplifier with a maximum output of 400 watts. • Direct connections can be made with the speaker outputs of your car audio if it is not equipped with the line output (High tevel input connection). • Low-pass filter, high-pass filter, and five band equalizer circuit are built-in. • The DIRECTswitch can be used to bypass the low-pass filter, high-pass filter, and equalizer circuit for more enjoyable high quality sound. • You can visually confirm the output level of both the left and right sides with the power level indicator. • Dual mode connection possible for a multispeaker system. • Protection circuit and indicator provided. • Pulse power supply* for stable, regulated output power. Pulse power supply This unit has a built-in _ower regulator which converts the power supplied by the DC 12 V car battery into high speed pulses using a semiconductor switch. Tl_se pulses are stepped up by the built-in pulse transformer and separated into both positive and negative power supplies before being converted into direct current again. This is to regulate fluctuating voltage from the car battery. This light weight power supply system provides a highly efficient power supply with a low impedance output. Location and Function of Controls [] [] [] [] [] [] [] POWER/PROTECTOR indicator • OVER CURRENT lights up green during normal operation. The color will change from green to red when receiving a powerful signal. • OFF SET lights up green during normal operation. The color will change from green to red when the voltage going out to the speaker terminal or the pin jack is too high. • THERMAL lights up green during normal operation. The color will change from green to red when the temperature rises to an unsafe level. The color will return to green when the temperature returns to normal. Power level indicator Indicates the output levels of both the left and right sides. The scale is calibrated for use with 4 ohms speakers. LEVELadjustment control The input level can be adjusted with this control when using source equipment made by other manufacturers. Turn it to MAX when the output level of the car audio seems low. To reduce noise, turn the LEVEL control (gain) of the amplifer to IVIINand the volume of the car audio up. DIRECTswitch When the DIRECT switch is set to ON, the signal does not go through the low-pass filter, high-pass filter and equalizer circuit. EQUAUZER level control You can change the settings of the five band (50 Hz, 200 Hz, 800 Hz, 3,2 kHz, 12.8 kHz ) equalizer. Cut-off frequency adjustment control Sets the cut-off frequency (50-200 Hz) for the low-pass or high-pass filters. FILTERselector switch When the switch is in the LPF position, the filter is set to low-pass. When in the HPF position, the filter is set to high-pass. When the DIRECT switch is set to ON, these filters do not work. []pOWEWPROTEC_ [] 16 settings for each system configuration ; R, " , , . , , I r. i • • ._i2 Equalizer/Egaliseur dB +11 +11 +1: +9 +S , I n i i , I n i I , ,,,,,n IIIII nnnH RUIN n nH , I i t , , ,/!_,, , I i * q ,,,,,,n lillll li HI *innt_ *nn /% .... , I I _ _ _ ', , ',,i',v, n ! ; i iill iiii , i I J , ,,,, I_111 _lnnn I_iH Ilnln , iX ..... ,/ .... +3 !/;\;iii I n inn +0 i -3 .S 4 "12 "lS ,111 Switch L I _.,,_,07_ ; i N i ii ' i i nnn it I n n i n n Bruin nnnH 11111 ntIH 2O 30 i n i 100 \ ; '_: / ..... ,"IN4, J J I I I l I I I I I I I I l IN JlJ iii Ill Xr,: ;,N liil i _ ' iiii I _ I ',U X',',:I laBan I , , ' I J Ji I J li I JH II JJ I I I I J J I I li J I li llO01K 2K 32KfK [] FILTERselector switch When the switch is tn the LPF position, the filter is set to low-pass. When in the HPF position, the filter is set to high-pass. When the DIRECT switch is set to ON, these filters do not work. ;if' +12 settings for each system nl :, I, ,,,,,,"_"' x:/: :"',,'_ , ,,,,, iHn I 20 "1110 Switch ,/_,, = , I 11111 50 100 Ii '_',,,,.k'"'" , ,+,,H, i+li S00 I_lg 20Q configuration IIIIIH 3+2KSK _t( 12J gg (Change the switch positions according to the configuration.) FREQUENCY System (refer to "Connections") FILTER EQ -- -- OFF * OFF LPF * Full range speakers OFF HPF * Sub woofers OFF LPF * • 2-speaker system • As a MonauralAmplifier • Dual Mode System As the Monaural Ampllifier for a Subwoofer 2+waysystem DIRECT ON .................. OFF Cut-off frequency/Frequence de coupure dB 10 o .10 iJ ;;;; I I "17-rr i i _; t l ...... H "20 i i ,, IJ .50 switeh r150H- * _0 i i i L2OOHz_ i i i i ...... ..... + i I J ; ' , i i ii I I , , _, _J_L__U "-,d, - ....... --_--rn-r_-n i i i p i ,--+--,--,-_i-,-, i i i i i i i 114111 i I ,,: .... :'" i du circuit Lch_-{_OP,O) FILTER 1R ; i i i ' I i I ..... ii ._. - - * - -k- 4- _- 4 __ i i i i _i i i i i t i i i i tl • I i i i il FILTER Rch_.-- i H+GH PASS ..... i I i I FREQUENCY Circuit Diagram/$ch_na i ,,, Ir- ,,50Hz/q+ L fj/_ .... 1 _- i i q q{ 4o _-F'I I ...... If you do not use the low-pass filter, high-pass filter and equalizer circuit, set the DIRECT to ON [or more enjoyable high quality sound. i , , ,+ -40 * desirable level Note i i _I _ _ _I__ i i i i i i _I Jp r i i i i i Sony Corporation Printed in USA