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Electro-Voice AP2400 User's Manual

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2. Electro Voice a MARK IV company 3 Ey EleciroVoice Operation Manual for the AP2200 amp AP2400 amplifiers SPECIFICATIONS All output power specifications are for lt 0 1 THD 20 20kHz both channels driven 3OkHz measurement bandwidth RATED POWER Watts AP2200 AP2400 Dual Mode 4 ohm 150 250 8 ohm 100 200 70 volt 100 200 Parallel Mono 2 ohm 300 500 4 ohm 200 400 B ohm 100 200 70 volt 200 400 Bridged Mono B ohm 300 500 16 ohm 200 400 140 volt 200 400 FREQUENCY RESPONSE 10 Hz to 80kHz ref 1kHz 1 watt output 0 3 dBr POWER BANDWIDTH 20Hz to 20kHz ref 1kHz 0 5 dBr where 0 dBr rated output power in any mode VOLTAGE GAIN ref 1 kHz AP2200 AP2400 Dual Mode 4 8 ohm 31 2 dBu 34 2 dBu 70 volt 39 2 dBu 39 2 dBu Parallel Mono 2 4 8 ohm 31 2 dBu 34 2 dBu 70 volt 39 2 dBu 39 2 dBu Bridged Mono B 16 ohm 37 2 dBu 40 2 dBu 140 volt 45 2 dBu 45 2 dBu SIGNAL TO NOISE 100 dBr A wtd measured below rated output THD 0 196 20 20 kHz for rated power any mode 30kHz measurement bandwidth SENSITIVITY AP2200 AP2400 8o0hm 70V 140V OdBu 0 775 Vrms 0 dBu 0 775 Vrms 4Q 21 BC brg 1 2 dBu 0 647 Vrms 2 dBu 0 616 Vrms INPUT IMPEDANCE 20k Ohms SOURCE IMPEDANCE 0 032 Ohms CROSS TALK 70 dB at 1kHz DC OFFSET Less than 5 mV SLEW RATE 15 V uS DAMPING FACTOR 300 1 kHz 8 ohm AC POWER 120 V ac 60 Hz MINIMUM AC VOLTAGE 95 V ac 60 Hz Ele
3. 6 ae H ZHI ne eezr 6 57 ecb 23 2330 Operation Manual for the AP2200 8 AP2400 amplifiers 5 9 d 8 We 30 TANNVHO dWV WA4AMOd SOLLVWHHOS 8 AIddN S 3THMOd SOLLVIWAHOS __ mimo rws o bd 19 02207 KR 031412348 251 310 53 SILON BarzZdJs a8zzdu 14008 04 mh n ere 32 00 04812313 Q LD GENZ 1 jneezz b 3 0 19 ani 812 93 KA 42 ani d 212 t CS T o A 1955 18 1 ees 31 L J 7 ZHI AGONLS 23 50 A Bi Ee 1 5 te gs ITLI und c wuer et ZHI ABQN1S uz E 5 HI ABON1S uz 8 3 32 CHI NOUN J HE A 1 IHD 5 07 5 WE s 2160 81 1 08 46 248 01 8H 8H 2H 281 QuBDB M3nlBQ ac DARET GEOG 30100 30 US za THI 4 58 2 y 47 3 2 1H27 ABONLS yb 0 c TH 621 0612 nasz 17 621 8862 6052 123001 31 Electro Voice Inc a MARK IV company Electro Voice FACTORY SERVICE If there is not an authorized service representative in your area you can ship
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5. Additional details are included in the Uniform Limited Warranty statement 2 Electro Voice a MARK IV company PRODUCT DESCRIPTION The Electro Voice AP2200 AP2400 series amplifiers are designed for direct voice coil drive and or 70 volt distributed systems Each channel can be independently configured for 70 volt line operation or 8 4 ohm systems The two channels together can be paralleled or bridged for driving a single load This series features an ultraquiet continuously variable cooling system which pulls air from front to back An air filter is provided and can be removed from the front for cleaning The input module is removable and comes standard with both XLR and screw terminal connectors Optional accessories for signal processing plug into the input module Optional control modules allow compatibility and connection to an Interactive Technology network Each channel is protected against load shorts overtemperature and output dc The front panel indicators provide signal present signal clip and standby for each channel as well as a power on indicator UNPACKING This shipping carton is specially designed to protect the amplifier while transporting under normal conditions It is still possible for damage to occur so carefully inspect the outside carton for signs of abuse If for any reason the amplifier should be returned use the shipping carton that it came in Electro Voice cannot warranty against d
6. Operation Manual for the AP2200 amp AP2400 amplifiers SERVICE INSTRUCTIONS CAUTION NO USER SERVICEABLE PARTS INSIDE EXTREMELY HAZARDOUS VOLTAGES AND CURRENTS MAY BE ENCOUNTERED WITHIN THE CHASSIS THE SERVICING INFORMATION CONTAINED WITHIN THIS DOCUMENT IS ONLY FOR USE BY ELECTRO VOICE AUTHORIZED WARRANTY REPAIR STATIONS AND QUALIFIED SERVICE PERSONNEL TO AVOID ELECTRIC SHOCK DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO OTHERWISE REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL Electro Voice a MARK IV company Operation Manual for the p V Eleclrol oice AP2200 amp AP2400 amplifiers NOTICE Repairs performed by other than authorized warranty stations Dealers or qualified personnel shall void the warranty period of this unit To avoid loss of warranty see your nearest Electro Voice authorized dealer or call Mark IV Audio Service directly at 1 800 234 6831 or FAX 616 695 4743 or write Mark IV Audio Service 600 Cecil Street Buchanan MI 49107 USA 14 SERVICE INSTRUCTIONS CAUTION NO USER SERVICEABLE PARTS INSIDE EXTREMELY HAZARDOUS VOLTAGES AND CURRENTS MAY BE ENCOUNTERED WITHIN THE CHASSIS THE SERVICING INFORMATION CONTAINED WITHIN THIS DOCUMENT IS ONLY FOR USE BY ELECTRO VOICE AUTHORIZED WARRANTY REPAIR STATIONS AND QUALIFIED SERVICE PERSONNEL TO AVOID ELECTRIC SHOCK DO NOT PERFORM ANY SERVICING
7. 01 039390 200 Ohm 5W 596 R199 47 01 028008 2 7k Ohm 5W 596 CF R6 29 135 161 162 47 03 051212 20 k Ohm 5W 196 MF R118 179 47 01 051310 1 5k Ohm 1W 596 R7 26 47 06 121916 POT trim 2 k Ohm 5 Watt CAPACITORS C40 41 44 45 15 02 100014 15 pF Ceramic 500V C1 2 3 5 27 34 15 02 100018 47 pF 200V Ceramic C65 66 69 70 15 02 100018 47 pF 200V Ceramic C30 38 57 60 15 02 100024 100pF 200V Ceramic C55 56 15 02 102603 120pF 200V Ceramic C61 64 15 02 100042 001uF Ceramic C10 18 15 06 124691 0033uF 50V Ceramic C11 19 15 06 027395 0 01uF 50V Ceramic C4 6 7 8 9 15 16 15 02 124808 0 107 50V Ceramic C17 21 24 26 33 15 02 124808 0 1uF 50V Ceramic C35 47 48 49 50 15 02 124808 0 1 50V Ceramic C51 54 72 15 02 124808 0 1uF 50V Ceramic C39 42 43 46 15 06 039383 TuF 400V Met Poly C20 71 15 06 122843 0 33uF 50V Ceramic C14 22 15 01 124509 2 2uF 50V Electrolytic C23 25 31 32 15 01 028691 10uF 50V Electrolytic C28 36 15 01 125026 6 8 uF non pol Electrolytic C67 68 15 01 124508 47uF 50V Electrolytic C29 37 15 01 102611 220uF 16V Electrolytic CONNECTORS P1 21 02 050973 30 Pin connector female 1 21 01 124829 8 pin Header 0 1 ctrs J2 21 02 123239 10 pin Header 0 1 ctrs J3 21 01 123198 2 Pin Header 0 1 ctrs J100A 200A 21 01 051176 12 pin Header 0 1 ctrs HARDWARE 28 07 051187 Standoff LED Rt Angie T0220 hardware 28 01 124701 Screw 4 x 1 4 ROL PHP BO Drvr xtr hardware 28 02 027389 Nut Keps Hex 4 40 Drvr xtr hardware 28 01 026899 Screw MCH 4 40 MISCEL
8. 124676 1 21 k 25W 196 R101 201 47 03 122868 1 33k 25W 196 128 129 228 229 47 01 102088 2 7k 25W 596 R127 227 139 140 47 01 039390 200 Ohm 5W 596 R239 240 47 01 039390 200 Ohm 5W 596 R106 109 206 209 47 01 102298 27k 5W 596 R118 218 47 03 028226 66 5k 25W 196 R134 234 47 03 037660 3 32k 25W 196 R136 236 47 03 037662 3 65 k 25W 196 R133 233 47 03 039391 33 2k 5W 196 R135 138 235 238 47 03 051175 36 5k 5W 196 R107 207 47 03 121457 110k 25W 196 R119 126 130 219 47 03 109437 10K 25W 196 H226 230 47 03 109437 10K 25W 196 R103 111 116 131 47 03 121532 1K 25W 196 R132 137 47 03 121532 1K 25W 196 R203 211 216 231 47 03 121532 1K 25W 196 R232 237 47 03 121532 1K 25W 196 18 Electro Voice Inc a MARK IV company REFERENCE PART NUMBER DESCRIPTION R104 112 123 124 47 01 051289 100 Ohm 1W 5 Flame R204 212 223 224 47 01 051289 100 Ohm 1W 596 Flame P R100 200 47 03 124697 3 24k 25W 1 R117 217 47 03 124648 1 78k 25W 196 R102 125 202 225 47 06 125036 250 Ohm Trim R108 122 208 222 47 09 125029 22 X2 5 SW Ceramic W01 70 21 01 110310 Jmpr Circuit CAPACITORS C100 101 200 201 15 06 124587 001 100V poly C103 203 15 01 124503 100uF 50V Alum Elec C107 108 207 208 15 02 100018 47pF 100V ceramic C109 112 209 212 15 02 106367 68pF 200V C110 210 15 02 107532 330pF 200V ceramic C102 202 15 06 038149 0 022uF 100V Metalized Pot C105 106 205 206 15 06 039383 0 1uF 400V Metalized
9. 140 011 input sensitivity must be adjusted to 3 dBu 0 549 V rms ILLEGAL MODE PROTECTION illegal mode protection is provided to guard against an improper mono mode setting When the amplifier is set in either bridged or parallel mono both amplifiers are combined as one power stage to drive the speaker load It is necessary that each amplifier s load switch is configured identically since both amplifiers are driving the same load To avoid problems the protection logic will sense an improper condition and disable channel one Channel two is also disabled since channel two is driven by channel one The channel 1 Standby LED on the front panel will turn on In addition the ILLEGAL MODE LED on the rear panel will also turn on The amplifier will remain in this mode until both load switches are identically set or dual mode is selected 70 VOLT OPERATION 70 011 line operation provides a means to drive multiple sets of speakers without the confusion and complexity of adjusting the final load impedance The term 70 volt refers to the output rms voltage delivered by the amplifier By comparison the output voltage for an AP2400 into an 8 ohm load with an input of 0 dBu is 40 volts rms When the amplifier load switch is changed to the 70 volt position two things happen One is that the gain is increased so that an input of 0 dBu results in an output of 70 7 volts rms The second is that the amplifier power supply voltage is adjusted to acco
10. 31nH i has 0 nsi 85 4 1 AST 15 T c E p S 3 3 23 Electro Voice Inc a MARK IV company SEH 253 1 1 SSR 112783yDd zr ei 83 22n 4 E 6 65 CH2 ABQNUMIS 6 WER T8 tt ea THO AGONUIS 2 8 5 9 EYJ 8 1 ane ED AE di 19 dud E e QNOU E 1 NO lt S 8 lt QN9d 8 m i 1 QNOH ei a X AlddNS 3 0 9 01 Des Zem 2 1 8 B 22 1112 lt H274604 8 2 6 23 3 z 4 lt lt 8 1 2011 eg IHN ul vs 5 IR ID lt 2 ra ITM 1 405 60 OL 510 2 3 019 3 4 CHEM di D nee n x e 9 01 00 01 3 j 8 9 010145 1 227 ge 015 a 5 1 TON 291 20M 3 SC SCH at NSF z 1 1 LE 34601 H2 NIU9 35N3S 4 D 8 8 8 occ E os 1 n scr s2 sizise te ze ETT 21 M SET 18 9 56 0 51 6 21 m 521 wuow EZ S 6 156 28 551 651 031213345 10898 ON 016 N d 0141 35 33 N d 43
11. 54 70 V Parallel 50 140 V Bridged Pid 31 26 0 26 89 22 29 0 29 99 25 29 0 29 99 25 30 0 30 102 26 38 0 38 130 33 35 0 35 120 30 38 0 38 33 Load cal H 2 ohm Parallel 76 48 27 47 7 163 41 4 ohm Dual 81 51 27 50 7 173 44 8 ohm Dual 63 40 18 39 8 136 34 B ohm Brid 81 87 27 60 7 173 44 70 V Dual 79 44 18 43 8 150 38 70 V Parallel 66 42 18 41 8 143 36 140 V a 38 2 ohm Parallel 1 35 104 3 101 345 87 4 ohm Dual 1 39 107 3 104 355 89 8 ohm Dual 45 73 2 71 2 2 61 8 ohm Bridged 1 38 106 3 103 352 65 70 V Dual 88 68 2 66 225 57 70V Parallel 86 66 2 64 219 55 140 V Bridged 88 68 2 86 225 Application Dynamic Load Line Current A Pac W Pid Pdi Btu Hr Keal Hr 2 ohm Parallel 2 60 220 15 9 210 717 181 4 ohm Dual 2 43 210 15 9 194 663 167 8 ohm Dual 1 75 145 13 132 451 114 8 ohm Bridged 2 45 212 15 9 196 689 169 70 V Dual 1 52 122 13 109 372 70 V Parallel 1 50 120 13 107 365 92 140 V Bridged 1 51 123 13 110 375 95 Application Full Music Power 2 ohm Parallel 3 58 335 48 287 980 247 4 ohm Dual 3 68 344 48 296 1011 255 8 ohm Dual 2 27 212 32 180 615 155 8 ohm Bridged 3 65 341 48 293 1001 252 70 Oual 1 88 175 32 143 488 123 70 V Parallel 1 84 172 32 140 478 120 140 V Bridged 1 88 175 32 143 488 122 Electro Voice Inc a MARK IV company AP2400 Line Current Power Consumed Dissipated and Output for selected applications Application Idle 2 ohm Parallel 44 29 0 29
12. 6 HIF 22 80 e EIH t 81 602 SIH 6 2681 sb UIP 12 04 11 t 1 SH 1 204 2 281 FEN 1243 3 t BH 1 eiu 1 90 4 50 z 5 5 011701 AV TdSIC SOLLVWAHOS w 9 4 B Ze 03 412348 3513131116 SS314n SILON Zi 3 HIF SZ HS 2582 air 804 Su AN 8 6 180 2 1 41 06 20 2 FN 91 0 UIP IHI 0 1 e 1 10 Ch t 2 0051 0 Operation Manual for the AP2200 amp AP2400 amplifiers 28 1 THNNVHO HMOd SOLIVINAHOS 2 6 E S 2 8 mew egen a eege 19 39606 PEZ Q8 83131 dt DNE 31 LUH3H2S e utn 10931419345 3513410 5537n 04 H27dH31 usu 0 33100 0812313 dd4 8012 E119 H27296 01 143 8 012 4 858 52 5 t 2 2 8 e l 6 HS 9 8 2112 8 1 8 ZE 1 t D D M 8 o 85192 281 Ne 012 057 i Vo wr E muy A t 2 613 858 1 55 SE TH z EID 11 2 e 104100 THI 7 Fl 142738043 Joan WEIT 1H27220 8 8112 1 1 0
13. 7 41 5 24 3 70 0 600 9 07 42 4 54 Compression drivers are much more susceptible to damage from low frequencies than large cone loud speakers Even though an electronic crossover may be employed problems may arise in the cables between the crossover and the power amplifier or from misadjustment of the crossover Either of these situations could apply low frequency signals or hum to the driver and cause damage To prevent a potential problem Electro Voice recommends using a capacitor between the amplifier and the compression driver to suppress low frequencies and possible dc Refer to the example in Figure 3b In choosing a value one must be careful not to interfere with the crossover frequency As a general rule select a capacitor whose break frequency with respect to the load is 3 dB down at approximately 1 2 of the high pass corner frequency Mylar capacitors with at least a 100 volt ac rating are recommended HI FREQUENCY LOW FREQUENCY Table V shows the recommended capacitor values for use with 8 and 16 ohm drivers at common crossover frequencies ure 3b BIAMP connection with Fig TABLE V Protection Capacitor Sizes for Common Cross Over Frequencies compression driver protection capacitor X over Freq 8 Ohm 16 Ohm 500 HZ 80 uF 40 uF 800 HZ 50 uF 25 uF 1000 HZ 40 uF 20 uF 1250 HZ 33 uF 16 uF 2000 HZ 20 uF 10 uF 1 3150 HZ 12 uF 6 uF 6300 HZ 6 uF 3 uF 12 Electro Voice Inc a MARK IV company 34 ElectroVoice
14. OTHER THAN THAT CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO OTHERWISE REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL Notice Modifications to Electro Voice products are not recommended Such modifications shall be at the sole expense of the person s or company responsible and any damage resulting therefrom shall not be covered under warranty or otherwise Note If you need to verify the performance of the amplifier against the rated specifications you must be able to maintain the ac line voltage constant at 120 V ac Therefore we recommend a suitably rated variac 50 ampere rating at 120 V ac DC OFFSET TRIM PROCEDURE The following adjustments are best performed after the amplifier has warmed up First remove the top cover by the 6 access screws along the front and back Figure 4 Refer to figure 5 for the following procedure 1 With the amplifier in dual mode turned on and no signal locate trim pot R7 on the Driver PCB 2 Adjust for an output of zero volts dc 1 mV measured at the channel output speaker terminals 3 Repeat step 2 adjusting R26 measured at the channel 2 output speaker terminals IDLE CURRENT TRIM PROCEDURE The following adjustments are made on the main power amplifier board This board can be exposed by removing the four access screws at the four corners on the rear panel and raising the driver board assembly Figure 4 Each channel is a grounded bridge configurati
15. Poly C104 111 113 115 15 02 122891 0 1uF 50V Ceramic Radial C118 120 15 02 122891 0 1 50V Ceramic Radial C204 211 213 215 15 02 122891 0 1uF SOV Ceramic Radial C218 220 15 02 122891 0 1uF 50V Ceramic Radial C114 116 119 121 15 01 028691 10uF 50V Alum El C216 219 221 15 01 028691 10uF 50V Alum CONNECTORS J100 200 21 01 051176 Header 12 connector 0 1in 21 03 050992 Term 25in Spade screw mnt J103 21 04 050969 Barr Strip 4 Term PC Mount HARDWARE 170220 driver mntg 28 01 124701 Screw 4x1 4 ROL PHP BO 10220 driver mntg 14 08 051177 Bracket L TO220 driver mntg 28 04 125012 Wshr Nylon shoulder TOS amp Term mntg 28 02 114116 Nut keps 6 32 Term strip mntg 28 01 113868 SCREW 6 32 x 5 16 PHP STL TO3 mounting 28 01 115520 SCREW 6 32 x 5 8 PHP TOS mounting 28 07 051174 Nylon spacer TO3 mounting 28 03 103639 WSHR 6 Inside ster MISCELLANEOUS L100 200 5356 01 7 Inductor 1 85 uH 14 05 050993 Heatsink Extruded Cross Flow 31 02 124568 insulators TO 3 PCB DRIVER 27 01 051145 SEMICONDUCTORS U5 6 11 12 17 01 124463 LM339N Quad Comparator U3 4 9 10 17 01 029028 LM324 Low Pwr Quad Op Amp U1 U7 17 01 124461 TLO74CN Quad Amp U2 U8 17 01 124462 1107102 Single OP Amp Q30 48 03 121306 2N3904 NPN transistor Q13 48 03 027336 TIP 32 PNP transistor Q5 6 8 9 11 12 16 48 03 039707 MPSA42 NPN transistor Q20 25 26 28 29 48 03 039707 MPSA42 NPN transistor Q1 3 17 21 24 27 48 03 039708 MPSA92 PNP transistor Q7 10 18 22 4
16. Same as 23 but for channel 1 Same as pin 22 Connects to the chassis ground inside of the amplifier Same as above Electro Voice Inc a MARK IV company 19 E E 5 9 8 RUT SHE DELE 01112346 3 02 0 3 SILON de 40700 oma 89 D egen a nst H reset tc a D nile w AN ae 9 518 A LC LS ar op 28 K 23 Zid e bly a sissa 5 12 Bei 5 n i 3 TEX 440553238 ee Ont TL Set g 0 e M g Qiu SC 5 13 Se private Bly ety Edur face Er t ale d nsi y e 5 on esol 3 nsi 123195 989 Nid LUI 5 A T er t N 913 t t 5 3 UA v nat wi Mt 551 3j Du net 85 ros ib Jr 5 8 m t 3 moou 10951224 um d SH xd sE s lt i j oy BH oder pe WE KIN CT tal ine 9 Fa 9 8 1 2 E 01704 LAdNI SOLLVWAHOS Operation Manual for the AP2200 amp AP2400 amplifiers 20 CHVO amp S 3THATHG SOLLVINHHOS 21 Electro Voice Inc a MARK IV company p 2 5 9 8 KELO i re ol 8 3 0 UU gen
17. Sw1 Power Cord Fan conn housing Fan conn terminal AP2400 ONLY F1 CR1 2 Mntg Bridge Rect AP2200 ONLY F1 PART NUMBER DESCRIPTION 10 01 051247 WirePrep LD SW Xfmr Harn 51 02 039502 Load switch DPDT 15 amp 51 04 100459 Fuse Holder 51 02 124582 Pwr Switch 28 09 124596 Strain Relief Heyco 60 06 051246 CBL Line 18 GA 32 08 051064 Air Filter 21 02 121395 Conn Housing 2 pos 21 03 121397 Term Crimp 10 01 051647 WirePrep 51 04 105890 Fuse 10A 56 08 051555 Pwr Transformer 35 01 051239 FAN Cross Flo 24 VDC 10 75 48 02 122651 25 Amp Bridge Rect 28 02 114122 Nut Keps 8 32 10 01 051634 WirePrep 51 04 051254 Fuse 7A 56 08 051253 Pwr Transformer 35 01 051240 FAN Cross Flo 24 VDC 4 6 INPUT CARD PIN ASSIGNMENTS The input module connects to the amplifier via a 30 pin connector The amplifier provides various signals and controls through this connector The following is a brief description of each pin function PIN NAME FUNCTION 1 n en VOUT SENSE CHi 012 5 Volt DC signal that represents the load voltage for channel 1 VOUT SENSE CH2 Same as above but for channel 2 IOUT SENSE CH1 0105 Volt DC signal that represents the load current for channel 1 IOUT SENSE CH2 Same as above but for channel 2 TEMP CH 0 to 5 Volt DC signal that indicates the channel 1 heat sink temperature Scale is 25 to 100 C TEMP_CH2 Same as above but for channel 2 AUDIO_OUT_CH1 Channel one output s
18. the bridged mono mode A 100 volt system can be driven if the input signal is reduced to 3 dBu 0 549 V rms A 100 volt system would require speakers that are designed with transformers that have a 100 volt input tap Likewise a 140 volt system would require speakers that are designed with transformers that have a 140 volt input tap INSTALLATION The amplifier may be installed in a standard 19 inch equipment rack The AP2200 amp AP2400 requires 89 mm 3 5 in of vertical rack space and 406 4 mm 16 in of depth The amplifiers secure to the rack cabinet with four rack mount screws and cup washers provided in the hardware kit VENTILATION The amplifier must be adequately ventilated to avoid excessive temperature rise The air is drawn from front to back therefore a rear ventilated cabinet should be used It should not be used in areas where the ambient temperature exceeds 60 C 140 F To determine the ambient air temperature operate the system in the rack until the temperature stabilizes Measure the ambient air with a bulb type thermometer held at the bottom of the uppermost amplifier Do not let the thermometer touch the metal chassis because the chassis will be hotter than the ambient air If the air temperature exceeds 60 C 140 the equipment should be spaced at least 44 mm 1 75 in apart or a blower installed to provide sufficient air movement within the cabinet OUTPUT CABLE SELECTION Speaker wire size plays an impor
19. the unit in its original packing prepaid to Mark IV Audio Service Mark IV Audio Service 600 Cecil Street OR 8130 Glenoaks blvd Buchanan MI 49107 Sun Valley CA 91352 USA For a listing of authorized service representatives write to Mark IV Audio Service 600 Cecil Street Buchanan MI 49107 USA or call 1 800 234 6831 or FAX 616 695 4743 To obtain warranty service a customer must deliver the product prepaid to Mark IV Audio Service or any of its authorized service representatives together with proof of purchase of the product in the form of a bill of sale or receipted invoice TECHNICAL ASSISTANCE For applications assistance or other technical information call 1 800 234 6831 ACCESSORIES For information on accessories contact Mark IV Audio Service at 1 800 234 6831 or FAX 616 695 4743 1996 by Electro Voice Inc All rights reserved worldwide 11 96 42 02 051559
20. 11 12 15 02 026884 OtuF 250V Radial UL approved MISCELLANEOUS K1 45 01 051144 Relay 5V J4 21 01 050186 5 Pin Header 156 ctrs J2A 21 02 123239 10 Pin 1 ctrs J5A 12A 21 03 124541 25 Spade Term J5 12 21 03 124541 25 Spade Term Heatsink Triac 14 05 027783 Heatsink Stamped tall Htsnk Regulator 14 05 050433 Heatsink Extruded anodized Regulator mntg 28 01 026899 Screw MCH 4 40 Regulator mntg 28 02 027389 Nut Keps Hex 4 40 Triac mounting 28 01 124701 Screw Rolox 4 40 PCB SUPPLY AP2400 27 01 051149 SEMICONDUCTORS U2 17 02 039512 MOC3041 Opto Triac U3 17 01 051179 LM7806 6 volt regulator 4 17 01 121660 7815 15 volt regulator LS 17 01 121659 LM7915 neg 15 volt regulator D1 2 3 4 48 01 122601 1N4448 Diode D5 6 7 8 9 48 02 042787 1N4004 Diode CR3 CR4 48 02 037580 Bridge Rectifier Q1 3 48 02 039501 224 8 800 Volt Triac Q2 4 5 6 7 48 03 121306 2N3904 NPN Transistor RESISTORS R1 R6 R13 47 01 102246 180 Ohm 5W 596 R4 R9 47 03 028173 1008 25 196 R3 R8 47 03 109437 10k 25 W 196 2 85 87 810 47 03 2 1k 25 W 196 R11 47 03 028242 4 75k 25 W 196 W1 12 21 01 110310 Jmpr Circuit CAPACITORS C3 4 7 8 15 01 050971 2200uF 160V Electrolytic C13 15 16 15 01 050970 2200uF 50V Electrolytic C1 2 5 6 15 06 039383 TuF 400V Metal Poly C14 17 18 15 02 124808 uF 50V Ceramic C9 10 11 12 15 02 026884 01 250V Radial UL approved MISCELLANEOUS K1 45 01 051144 Relay SV 4 21 01 050186 5 Pin Header 156 5 J2A 21 02
21. 123239 10 Pin 1 5 J5A 12A 21 03 124541 25 Spade Term J5 12 21 03 124541 25 Spade Term Heatsink Triac 14 05 027783 Heatsink Stamped tall Htsnk Regulator 14 05 050433 Heatsink Extruded anodized i Me AAAI IPRA A ap UN ERIS mto REFERENCE PART NUMBER DESCRIPTION Regulator mntg 28 01 026899 Screw MCH 4 40 Regulator mntg 28 02 027389 Nut Keps Hex 4 40 Triac mounting 28 01 124701 Screw Rolox 4 40 CHASSIS HARDWARE AND CABLE Ear mntg screws 28 01 124842 Screw 8 8x1 4 Rolox B O PHP Driver brd hinge 28 01 124842 Screw 8 8x1 4 Rolox B O PHP Driver brd hinge 28 04 051242 Washer Nylon Shoulder 8 Top amp rear panel 28 01 121967 Screw 6x1 4 Rolox BO PHP Frnt panel screws 28 01 114318 Screw 61 4 MCH BO PHP Rear Pane mntg 28 01 124580 Screw 8 32x3 16 PHP Rolox Fan Bracket mntg 28 02 114116 Nut Keps 6 32 Fan mntg screws 28 01 110787 Screw Type B 8 6x1 4 BO Input Panel mntg 28 01 121967 Screw 61 4 Rolox BO PHP XLR mntg screws 28 01 026899 Screw 4x5 16 MCH BO PHP PCB Mounting 28 01 113868 Screw 6x 5 16 MCH STL PHP Earth ground 28 02 114116 Nut Keps 6 32 Main Heatsink 28 01 113870 Screw 6x1 2 MCH PHD Head Rack Mntg 28 13 026422 Hardware kit 10 01 051243 Amp Driver Cable 10 01 051244 Display Driver Cable 10 01 051245 Pwr Supply Driver Cable REFERENCE SW2 SW3
22. 2 CH 2 LO SIDE BIAS 8225 CH 2 Eyy EechoVoice Operation Manual for the AP2200 amp AP2400 amplifiers AP2200 amp 2400 COMPONENT PARTS LIST ORDERING REPLACEMENT PARTS To order replacement parts look up the ordering part number from the component parts listing and call 1 800 234 6831 or Fax 616 695 4743 REFERENCE PART NUMBER DESCRIPTION PCB POWER AMPLIFIER 27 01 050994 SEMICONDUCTORS U101 201 17 01 039252 NE5534AN Low noise op amp U100 200 17 01 124462 TLO71CP Single Op Amp D100 101 200 201 48 01 122601 1N4448 Diode 0102 107 113 115 48 01 125067 1N4937 Diode D202 207 213 215 48 01 125067 1N4937 Diode D108 112 114 48 02 042787 1N4004 Diode D208 212 214 48 02 042787 1N4004 Diode U102 202 48 03 039392 LM35DZ Temp sensor 1100 200 48 03 039704 MPSA18 NPN transistor Q111 211 48 03 039705 MJE340 NPN driver transistor Q112 212 48 03 039706 2350 PNP driver transistor 101 207 48 03 107102 2112906 PNP transistor Q102 202 48 03 121306 2N3904 NPN transistor Q105 107 205 207 48 03 122978 MJ15024 NPN Power transistor Q106 108 206 208 48 03 122979 115025 PNP Power transistor Q104 110 204 210 48 03 051553 2SA1668 PNP Driver Transistor Q103 109 203 209 48 03 051554 2504382 NPN Driver Transistor RESISTORS R113 114 120 121 47 01 039747 2 7 Ohm 1W 596 Flameproof R213 214 220 221 47 01 039747 2 7 Ohm 1W 596 Flameproof R105 110 205 210 47 03
23. 400 C Depth 16 in 406 4mm 16 in 406 4mm Width 19 in 482 6mm 19 in 482 6mm Height 3 4 in BB 1mm 3 4 in 8 1 Weight 29 75 Ib 13 49 kg 30 75 Ib 13 95 kg Shipping Weight 33 87 lb 15 36 kg 34 87 Ib 15 81 kg INPUT CONNECTIONS Balanced input connections may be made to either the wire terminals or the XLR connectors For single ended unbalanced signal sources the negative terminal pin 3 of the XLR should be connected to ground pin 1 of the XLR The screw terminal connections are wired directly to the XLR pins XLR pin 1 corresponds to the screw termina marked with a ground symbol XLR pins 2 and 3 correspond to the terminals marked and respectively The screw terminals may be used for an auxiliary output if the input signal is to be routed to multiple amplifiers Another application for the screw terminals is to provide a convenient place for a termination resistor A 600 ohm resistor connected across the and screw terminals is equivalent to loading pins 2 and 3 of the XLR input Refer to Figure 1 for typical connections OM 0 amp 5 GROUND JUMPER Figure 1a Balanced source using To help facilitate various grounding connections for pin 1 of the XLR connectors and header input the input terminal ground a three pin jumper is provided on the standard input module The jumper is located near the channel two XLR connector This jumper connects pin 1 of both XLR connectors to e
24. 6 R66 69 75 83 87 47 03 051218 10 0 k Ohm 125W 196 R91 95 96 100 105 47 03 051218 10 0 k Ohm 125W 196 R106 109 115 117 47 03 051218 10 0 k Ohm 125W 1 R119 132 133 158 47 03 051218 10 0 k Ohm 125W 196 R166 167 168 173 47 03 051218 10 0 k Ohm 125W 196 R174 180 181 183 47 03 051218 10 0 k Ohm 125W 196 R184 185 186 187 47 03 051218 10 0 k Ohm 125W 196 R188 189 47 03 051218 10 0 k Ohm 125W 196 R44 79 136 163 47 03 051217 20 0 k Ohm 125W 196 R58 93 47 01 051205 27 k Ohm 125W 596 R47 82 47 01 051204 30 k Ohm 125W 596 R57 59 92 101 47 01 051203 38 k Ohm 125W 596 R19 39 47 03 051190 40 2 k Ohm 125W 196 R94 47 03 051189 41 2 k Ohm 125W 196 R97 47 03 051224 90 9 k Ohm 125W 196 R53 55 88 90 122 47 03 051215 100 k Ohm 125W 196 R131 154 159 177 47 03 051215 100 k Ohm 125W 196 R178 190 192 194 47 03 051215 100 k Ohm 125W 196 R196 198 47 03 051215 100 k Ohm 125W 196 R61 67 99 104 107 47 03 051213 121 k Ohm 125W 196 R182 47 03 051213 121 k Ohm 125W 196 R50 63 64 73 85 47 01 051202 470 k Ohm 125W 596 R102 103 113 47 01 051202 470 k Ohm 125W 596 R51 86 47 01 051201 1 0 M Ohm 125W 596 R45 60 68 80 98 108 47 01 051200 2 0 M Ohm 125W 596 R74 114 47 01 051199 2 7 M Ohm 125W 596 R114 47 01 051199 2 7 M Ohm 125W 596 R120 152 See table in schematics Electro Voice Inc a MARK IV company REFERENCE R129 156 See table in schematics R130 157 See table in schematics 8141 456 See table in schematics MISCELLANEOUS RESISTORS R5 25 47
25. 8 03 039705 MJE340 NPN driver transistor Q2 4 15 19 48 03 039706 MJE350 PNP driver transistor LED1 illegal mode 39 01 051184 LED Amber CR2 3 5 6 24 36 48 02 042787 IN4004 Diode CR29 30 31 32 48 01 125067 1N4937 Diode D nta wa REFERENCE PARTNUMBER DESCRIPTION CR7 33 48 01 124431 1N5359 24V Zener CR1 4 8 23 25 28 48 01 122601 1N4448 Diode CR34 35 37 48 48 01 122601 1N4448 Diode 1 8 WATT METAL FILM RESISTORS 84 9 24 2 47 01 051211 47 5 Ohm 125W 196 81132 47 01 051210 330 Ohm 125W 5 R165 170 172 176 47 01 051209 560 Ohm 125W 5 R1 2 3 21 22 23 47 03 051222 1 00 k Ohm 125W 196 846 54 78 81 9 47 03 02 1 00 k Ohm 125W 1 R124 126 127 134 47 03 051222 1 00 k Ohm 125W 196 R138 139 140 143 47 03 051222 1 00 k Ohm 125W 196 R144 145 148 149 47 03 051222 1 00 k Ohm 125W 196 R150 160 200 201 47 03 051222 1 00 k Ohm 125W 1 R8 27 121 123 47 03 051221 1 10 k Ohm 125W 1 R153 155 47 03 051221 1 10 k Ohm 125W 196 R49 76 84 116 47 01 051208 1 5 k Ohm 125W 5 R164 169 171 175 47 01 051208 1 5 k Ohm 125W 596 R125 137 142 147 47 03 051219 2 0 k Ohm 125W 196 842 77 47 03 051198 2 43 k Ohm 125W 1 R41 70 71 110 111 4 0 77 3 9 k Ohm 125W 596 R17 20 40 72 47 01 051206 4 7 kOhm 125W 596 R112 191 193 47 01 051206 4 7 k Ohm 125W 596 R195 197 47 01 051206 47 k Ohm 125W 596 R128 151 47 03 051311 9 31 k Ohm 125W 196 R14 18 30 37 38 47 03 051218 10 0 k Ohm 125W 196 R48 52 56 62 65 47 03 051218 10 0 k Ohm 125W 19
26. 99 25 4 ohm Dual 55 42 0 42 143 36 8 ohm Dual 55 42 0 42 143 36 8 ohm Bridged 52 36 0 123 31 70V Duel 58 45 0 45 154 39 70 V Parallel 50 35 0 120 30 0 08 2 ohm Parallel 85 65 45 645 220 55 4 ohm Dual 15 53 45 575 196 49 8 ohm Dual 80 70 26 696 8 60 8 ohm Bridged 89 70 45 805 237 80 70 V Dual 78 62 36 61 8 210 53 70 Parallel 74 53 36 56 197 50 140 V Bridged F 60 6 52 2 ohm Parallel 1 87 154 148 508 128 5 4 chm Dual 194 161 5 156 533 134 8 ohm Dual 1 41 113 4 109 372 8 ohm Bridged 1 91 159 5 154 526 133 70 V Dua 1 40 113 E 109 372 g4 70 Parallel 1 38 110 4 106 362 91 140 V Bridged 1 38 111 E 107 385 92 Application Dynamic Load Line Current A Pac W Pid W Pdi W 1 Kcal Hr 2 ohm Parallel 3 55 317 26 3 291 994 250 4 ohm Dual 3 60 321 26 3 295 1007 254 8 ohm Dual 2 53 218 21 2 197 673 170 8 ohm Bridged 3 60 321 26 3 295 1007 254 70V Dual 246 208 21 6 186 635 160 70 V Parallel 2 42 204 21 6 182 622 157 140 V Bridged 247 642 182 Application Full Music Power Load Line Current A Pac W Pid W Keal Hr 2 ohm Parallel 5 50 520 80 440 1503 379 4 ohm Dual 5 65 535 80 455 1554 391 8 ohm Dual 3 93 353 64 289 987 248 B ohm Bridged 5 61 535 80 455 1554 392 70 V Dual 3 72 332 64 268 915 231 70 Parallel 3 72 331 64 267 912 230 140 V Bridged 3 65 325 64 261 891 225 im V ElectroVoice Operation Manual for the AP2200 amp AP2400 amplifiers PHYSICAL AP2200 AP2
27. CTION 12 6 Idle current trim pot locations 15 SERVICE INSTRUCTIONS 13 TABLES ORDERING REPLACEMENT PARTS 16 l AP2200 power losses per foot in 2 wire speaker cable 9 AP2200 amp AP2400 COMPONENT PARTS LIST 16 I AP2400 power losses per foot in 2 wire speaker cable 9 INPUT CARD PIN ASSIGNMENTS 19 Il DC resistance per foot verses wire gauge 10 SCHEMATICS 20 IV Speaker protection fuse chart 11 Input Board 20 V Protection capacitor sizes for common cross over frequencies 1 Driver Board 21 Display Board 28 Power Amp Channel 1 29 Power Amp Channel 2 30 Power Supply Board 31 FACTORY SERVICE 32 TECHNICAL SERVICE 32 ACCESSORIES 32 Uniform Limited Warranty Statement Electro Voice products are guaranteed against malfunction due to defects in materials or workmanship for a specified period as noted in the product line statement s below or in the individual product data sheet or owner s manual beginning with the date of original purchase If such malfunction occurs during the specified period the product will be repaired or replaced at our option without charge The product will be returned to the customer prepaid Excluslons and Limitations The Limited Warranty does not apply to a exterior finish or appearance b certain specific items described in the individual product line statement s below or in the individual product data sheet or owner s manual c malfunction resulting from use or operation of the product other than as specified
28. D Sel Parallel Mono This configuration provides the means to increase the current delivered to a single speaker load by shorting the outputs together Figure 2b Both channels are combined to create one power amplifier that has the equivalent power capacity of both channels Do not make the mistake however of assuming that for example an AP2400 in parallel mono mode driving a single 8 ohm load will deliver 400 watts It will still deliver 200 watts with a 0 dBu input signal The advantage of parallel mono is the ability to double the power into a 4 ohm load 400 watts as well as deliver still more power into 2 ohms 500 watts without overheating or current limiting For distributed 70 volt line applications parallel mono mode allows loading the amplifier for the full rated power of both channels on a single 70 011 line The signal source is connected to the channel one input only The channel 2 input is disabled Electro Voice Inc a MARK IV company Caution Replace output cover after speakers are connected expose bare wires and terminals Figure 2a Dual Stereo Mode Connections H CHANNEL 1INPUTONLY MODE SWITCH LEFT POSITION Figure 2b Parallel Mono Connections WARNING The load switches must be set in tandem when operating in parallel mono mode If one load switch is set for 70 volt and the other is set for 8 4 ohms while in this mode the protection logic wil
29. EY ElectroVoice OPERATION MANUAL amp SERVICE INSTRUCTIONS AP2200 amp AP2400 AMPLIFIERS SS ee Se eS GR Sa Ss SS SS Oe Me 4 ElectroVoice Operation Manual for the AP2200 amp AP2400 amplifiers EY TABLE OF CONTENTS PAGE TABLES AND ILLUSTRATIONS Page PRODUCT DESCRIPTION 3 INPUT CONNECTION ILLUSTRATIONS UNPACKING 3 18 Balanced source using header input 5 PRECAUTIONS 3 ib Unbalanced source using header input 5 SPECIFICATIONS 4 ic Alternate connection for unbalanced sources using header input 5 POWER CONSUMPTION AND THERMAL DISSAPATION 5 10 Balanced source with auxiliary out 5 INPUT CONNECTIONS 6 16 Balanced source with termination resistors 5 OUTPUT CONNECTIONS CONFIGURATIONS 7 1f Unbalanced source with auxiliary out 5 Dua Mode 7 19 Alternate connection for unbalanced sources with auxiliary out 5 Parallel Mono 7 OUTPUT CONNECTION ILLUSTRATIONS Bridged Mono 7 2a Dual mode configuration 6 ILLEGAL MODE 8 Parallel mono configuration 6 70 VOLT OPERATION 8 26 Bridged mono configuration 7 INSTALLATION 9 3a Fused output protection for speakers 11 VENTILATION 9 3b Output capacitor connection for compression drivers 11 OUTPUT CABLE SELECTION 9 SERVICE INSTRUCTIONS CALCULATING POWER LOSSES 10 4 Removing the top cover and accessing the power amplifier 15 DAMPING FACTOR amp CABLE LENGTH 11 5 DC bias trim pot locations 15 SPEAKER PROTE
30. LANEOUS Ki K2 45 01 051144 5V Relay DPDT 51 51 02 050968 Switch 7 14 05 045222 Htsk Stamped Short 14 05 027783 Htsk Stamped tall L1 L2 56 01 121543 2 7 mH PCB INPUT 27 01 039770 SEMICONDUCTORS U1 2 17 01 122832 5532A Low noise op amp RESISTORS R7 8 16 17 47 03 121532 1 0k 25 W196 R1 2 3 4 10 11 12 47 03 109437 10k 25W 196 R13 47 03 109437 10k 25W 196 R6 15 47 03 028260 47 5 k 25W 196 PART NUMBER DESCRIPTION ElectroVoice Operation Manual for the 2 AP2200 amp AP2400 amplifiers REFERENCE PART NUMBER DESCRIPTION R9 18 47 03 037770 100 25 W 196 JMP1 4 7 8 21 01 110310 JMPR CIRCUIT W01 20 21 01 110310 JMPR CIRCUIT 4 47 02 4854 3k detent potentiometer 24 04 124526 Knob Screwdriver adjust CONNECTORS J2A J4A 21 01 037785 XLR Connector pc mount J3 170FJ0003 3 conductor Header Rt angle 1170FJ0008 3 conductor terminal Plug in J1A 21 01 050972 30 pin Header 1 ctrs J5 8 21 03 122968 5 pin Header 1 ctrs 1170 JA 0001 2 pos shorting jmpr 1 centr J7 21 01 051178 3 pin Header 1 cntr CAPACITORS C5 15 15 01 125026 6 8 uF non pol Electrolytic C4 13 8 17 15 02 124808 TuF SOV Ceramic C6 16 15 06 124587 001 uF 50V Poly C1 11 15 02 029032 15pF 50V Ceramic C10 18 20 21 15 01 028691 1OuF 50V Electrolytic C2 3 7 12 14 19 15 02 028578 47pF 50V Ceramic MISCELLANEOUS FL1 2 3 4 56 01 050483 Ferrite Bead EMC Filter XLR PCB mntg 28 01 124701 Screw 4 40x1 4 PCB DISPLAY 27 01 051167 SEMIC
31. ONDUCTORS Q1 2 3 4 5 6 48 03 121306 2N3904 NPN Transistor D1 5 6 39 01 051185 LED Red D3 8 39 01 56 LED Green D2 7 39 01 051184 LED Amber D4 9 48 02 042787 1N4004 Diode RESISTORS R1 8 14 15 47 03 109437 10k 25W 196 R2 3 5 7 9 10 12 47 03 121532 1k 25W 1 R4 11 47 03 028173 100k 25W 1 R6 13 47 03 051212 20k 5W 1 MF WO 21 01 110310 Jmpr Circuit MISCELLANEOUS JIA 21 01 051372 B pin Header 1 ctrs LED spacers 28 07 051183 Spacers perm o pads PCB SUPPLY AP2200 27 01 051148 SEMICONDUCTORS U1 U2 17 02 039512 MOC3041 Opto Triac US 17 01 051179 LM7806 6 voit regulator U4 17 01 121660 LM7815 15 volt regulator LS 17 01 121659 LM7915 neg 15 volt regulator CR1A CR1D 48 02 051000 Diode 6 amp 200V AP2200 CR2A CR2D 48 02 051000 Diode 6 amp 200V AP2200 D1 2 3 4 48 01 122601 1N4448 Diode D5 6 7 8 9 48 02 042787 1N4004 Diode CR3 CR4 48 02 037580 Bridge Rectifier Q1 3 48 02 039501 MAC224 8 600 Volt Triac Q2 4 5 6 7 48 03 121306 2N3904 NPN Transistor RESISTORS R1 R6 R13 47 01 102246 180 Ohm 5W 596 18 Electro Voice Inc a MARK IV company REFERENCE PART NUMBER DESCRIPTION R4 R9 47 03 028173 100k 25 W 196 R3 R8 47 03 109437 10k 25 W 196 R2 R5 R7 R10 47 03 121532 1k 25 W 196 R11 47 03 028242 4 75k 25 W 196 W1 12 21 01 110310 Jmpr Circuit CAPACITORS C4 7 15 01 050971 2200uF 160V Electrolytic C13 15 16 15 01 050970 2200uF 50V Electrolytic C1 2 5 6 15 06 039383 JuF 400V Metal Poly C14 17 18 15 02 124808 uF 50V Ceramic C9 10
32. ae Si TS oe 1 essen J ONS 2 0 951554 Id 6 e 32100n 0H123 13 mar 8 3 nsi 2 2 ONY d Bz 1402 2 2 a 1 11127017 016 L i e 5 0 anny 1 5 85 3 8 au nas 5 E gen AEN dE 3 vean COMIC BIO L i EZ Q d1127 uud 5 9 8 lt Id zz 6 N G 7123430041 lt 16 1 0090 lt 19 8 ouis H ZHI IN 81 Le 0090 81 x THO LW lt Id e Onga cId 3 MX 3 lt 14 51 No lt Id bi 07 4119 6 5 asi 14378102 i SCH H27ABONMIS 18 1 Breen 81 1 N UE 1 5 2 5 8 C 16 ka z4271n0701008 Id 8 nsi i 143 1 0 16 1 3 3 lt 6 9 031 id 5 RIS H3735N3 71001 lt Id 1H2735N3s7100 lt 16 zH2 3sSN3 1000 Id 1139 3SN3S 1n0h lt lt 6 1H27010nd38d em 834 LNdNI 04 Ls D l X9 Wi 2 Wei 2 875 TH27N1 0 8 1 3 3 8 9 0 N 5 012 de 3 8 BED 2 a 4861 ZEIT gz tu d IHO MIO 5 B 1H2732n 6 5 KEW ser won Se siese coca 1 A 921 we 501 GEES EET Kim 520
33. amage that occurs as a result of improper packaging PRECAUTIONS Do not replace the fuse with a higher amp rating than what is specified There are various circuits inside that detect fault conditions and place the amplifier in standby indicated on the front panel by the amber LEDs A blown ac panel fuse indicates a more severe problem such as a transformer failure An oversized fuse installed under these conditions can lead to a possible fire hazard There is a thermal fuse located inside the transformer primary windings to protect against unusual conditions that the amplifier fault logic may not sense For example a leaky power supply capacitor can cause excessive current to flow therefore heating up the transformer yet the amplifier appears to perform normally If the amplifier is operating under extreme conditions that cause the transformer to overheat it is possible for this thermal fuse to trip before either the back panel fuse blows or the amplifier engages a standby condition In this case the internal transformer fuse will remain open power until the temperature inside the transformer drops to a safe level At that time the fuse will close and power will again be applied This shut down condition can be recognized by a total power lost even though the panel fuse is good This contrasts against a thermal shut down by the fault logic where the power and stand by LEDs on the front panel are brightly lit and the internal fan may be running
34. caled down for 0 dBu full scale Can be used for monitoring or line out AUDIO OUT CH2 Same as above but for channel 2 STANDBY CH1 Control signal turns channel 1 power supply on by farcing pin to agnd Normally it is connected to the channel 1 fault signal pin 17 415V 15 volt DC supply with 100 mA capacity STANDBY Same as pin 9 but for channel 2 15V 15 volt DC supply with 100 mA capacity CLIP CH1 0 to 8 volt signal Indicates a clip condition by going high gt 4 volts 45V 6 volt DC supply with 800 mA capacity reference only to DGND CUP CH2 Same as pin 13 but for channel 2 PIN NAME 16 17 18 19 21 23 25 26 27 28 29 DGND FAULT CH1 DGND FAULT CH2 DGND POWER_CTL AGND AUDIO_IN_CH2 AGND AGND AGND AUDIO IN CH1 AGND CHASSISGND CHASSISGND FUNCTION Reference for 6 volt DC supply pin 14 Normally connected to STANDBY_CH1 Indicates either critical temperature over current cutput DC or shorted output devices by going high 5 valts Normally this signal 5 low 1 vot It is referenced to AGND Same as pin 16 Same as 17 but for channel 2 Same 85 16 Shorting this to DGND will power down the entire amplifier with the exception of the 6 volt DC supply Analog fault and 15 voll supply ground reference Input to power amplifier Unbalanced and referenced to AGND Sensitivity is 0 775 Vrms Same as pin 22 Same as pin 22 Same as pin 22
35. ctro Voice Inc a MARK IV company POWER CONS UMPTION AND THERMAL DISSIPATION The following tables provide guidelines for estimating heat dissipation of each amplifier given it s intended application This data is based on Pdis Pac Pid the following equation Pdis Power Dissipated in Watts Pac True AC Mains Power in Watts Consumed Pid Total Average Power Delivered to the Load The applications are as follows Idle The amplifier is on with no signal present Paging Background Music The amplifier is operating with one second announcements at full power every 15 seconds or back ground music which is attenuated 32 dBr Continuous Speech The amplifier is operating with continuous speech that is attenuated 23 dBr Dynamic The arnplifier is operating with a dynamic input signal such as a motion picture sound track or classical music Loud passages are at full power soft passages are equivalent to continuous speech Full Music Power The amplifier is operating with continuous music input at rated output to the load with only occasional clipping Line Current Power Conditions for following measurements Line 120 Vac Both channels driven equally and with equal loads for dual mode measurements AP2200 Consumed Dissipated and Output for selected applications Application Idle Load Line Current 2 ohm Parallel 37 4 ohm Dual 41 8 ohm Dua 41 8 ohm Bridged A3 70V Dual
36. d 001515310 NIVI 0017 237801 0151539 1 9 0677 Ka C E 5 9 7 8 WHATDIG SOLLVIWAHOS Operation Manual for the AP2200 8 AP2400 amplifiers 24 C3 VOS WAATHIG SOLLVIWHHOS 5 e 9 cH2 JIN 3 a nesz 36991 nesz 29561 G 2 Q 5 5 4 e D EE 6 ONSY nsi Z6USdH 051 ZHI Jual 88 81 de 275 2 804 33 2 oa ROR ZHI 31 H2 32n 82d ZHI 0I Q0nu3ud 85 49 0 J nz l ez 2 52 E 5 3 d EH 25 Electro Voice Inc a MARK IV company SCHEMATICS DRIVER BOARD 8 gt 3 D ul 4 L3 5 811 Cea N arm 3 R 2 12 a 2 1 5 7 aert x 5 In m nes anz z 1 2 12 n 2x c 3 c c 8 3 8 SN R 8 gt M T cot Osi ESY 2 co j E 35686 3 2 x aot 2 T d 658 2 te z23 NO TSE Ten 2 2 eg ace 1 122 m Se t 0 o agiu 581 H E Co i 5 e 5 s e g e O a T 26 Operation Manual for the AP2200 amp AP2400 amplifi
37. e 8 ohm load NO The actual load impedance is 8 ohms plus the resistance of the cable 0 00324 x 160 feet 8 8 52 ohms Because of the change in the load impedance the actual total power produced by the amplifier is 93 9 watts The power delivered to the load is approximately 93 9 watts minus 6 5 watts or B7 4 watts TABLE AP2200 Power Losses per foot in 2 wire Speaker Cable 2 300W 4 150W B 100W 16 50W TOV 100W 8 300W 140V 200W 0 1214 0 0303 0 0101 0 0025 0 0016 B 0 1813 0 0453 0 0151 0 0038 0 0024 10 0 3054 0 0764 0 0255 0 0064 0 0041 12 0 4844 0 1213 0 0405 0 0101 0 0065 14 0 7685 0 1926 0 0643 0 0161 0 0103 16 1 2185 0 3058 0 1022 0 0256 0 0164 18 1 9278 0 4851 0 1622 0 0406 0 0260 20 3 0417 0 7682 0 2574 0 0645 0 0414 22 4 7794 1 2144 0 4081 0 1025 0 0658 Parallel Mono Bridged Mono TABLE AP2400 Power Losses per foot in 2 wire Speaker Cable 2 500W 64 250W 8 200W 16 100W 0 8 500W 140V 400W 0 2023 0 0506 0 0202 0 0051 0 0065 0 3021 0 0756 0 0302 0 0076 0 0097 10 0 5090 0 1274 0 0510 0 0127 0 0163 12 0 8074 0 2022 0 0809 0 0202 0 0235 14 1 2809 0 3211 0 1286 0 0322 0 0412 18 2 0308 0 5098 0 2043 0 0511 0 0655 18 3 2130 0 8085 0 3244 0 0812 0 1041 20 5 0695 1 2805 0 5148 0 1290 0 1653 22 7 9656 2 0240 0 8163 0 2049 0 2627 Parallel Mono Bridged Mono Electro Voice Inc a MARK IV company DAMPING FACTOR The higher the damping factor of an ampli
38. ers 5 99 ER 8 WHATDIG SOLLVINHMHOS 2 3 V omm Tr eee uo ZHI 3SN35S 1n01 QN9U EN Iw A 1 Ke 1 1 D 5 ZHI 25 35 LNON CISIH 1 3 1H2 3SN3S 1 1 e E nsi e Q wet 2 SI 73 d 38838 100 0 zy nsi 33 ol 5 551 412031 LAE 1 27 111 881 85 int NST 3181 ZHO7 1NO7OIONH zSiu WNO uud Vom 5115 88 lt 1504 80 9 03 1403 2010 31 CH2 3 63 1 495 35835 ONDY 1504 504 otS0d 046 580415 ai 9 62 tose 62 504 IRCH 504 oz 6 ISIH GTM 1 1H2 73804 XA 31881 3SN3S 1H2 100 11 e IO oziu g 8 27 Electro Voice Inc a MARK IV company p 2 EI ro 28 892021 a Se 08 AR 21 5 111 409 rats e 303100 73 Zt 58 OC an 40800 Lem 3 60 M5 XOZ bOGENZ
39. fier the greater the ability of the amplifier to control unwanted speaker cone movements When a signal drives a woofer current flowing through the voice coil creates a magnetic field This field interacts with the permanent magnetic field in the gap and forces the combination cone and voice coil assembly to move outward When the signal is removed the assembly moves inward but its momentum causes it to overshoot its resting point This overshoot will dampen itself out eventually but the unwanted movements can add considerable distortion to the sound In the process of moving inward through the magnetic field the voice coil assembly generates a current of opposite polarity to the original signal This current induces a voltage or back EMF which travels through the speaker wire to the amplifiers output The lower the amplifier source impedance the faster the overshoot of the voice coil will dampen out The source impedance of an amplifier can be calculated by dividing the rated output impedance typically 8 ohms by the damping factor The source impedance of the AP2200 and the AP2400 is 0 032 ohms Cable Selection for Specified Damping Factor at the Load The damping factor rating of the amplifier is typically never realized at the load because of the resistance of the cable The damping factor at the load should be 30 for general paging systems and 50 for high fidelity music systems Economics usually dictate however that these numbers are cut in
40. half The resulting damping factor at the load should be based on experience and customer satisfaction Once a minimum damping factor is determined for a particular type of installation the following equation can be used to calculate the maximum length of two wire cable which can be used to achieve the minimum damping factor specified at the load zL 7 MaxLength DF DCR ZL load impedance Zo Amplifier source impedance DF minimum permissible damping factor DCR dc resistance per foot of the 2 wire cable Table III For 70 volt systems ZL can be approximated as ZL 70 7 Pout Pout Amplifier rated power For 100 volt systems ZL 100 Pout For 140 volt systems ZL 141 4 Pout Suppose ZL equals 8 ohms Zo 0 032 ohms AP2400 and the minimum damping factor at the load is to be 25 In addition 18 GA cable is preferred Then the maximum length of cable which can be used to achieve a damping factor of 25 at the load is Max Length 8 25 0 032 0 01302 22 1 feet Suppose you would like to calculate the maximum length of 2 wire cable using the same conditions as above except now you are using a 70V system instead of an 8 ohm system For a 200 watt 70 011 system ZL 70 77 200 25 ohms Using the above calculation for a minimum DF of 25 Max Length 25 25 0 032 0 01302 74 3 feet A 140 volt 200 watt system using the same conditions as above would allow over 298 feet of 18 gauge cable Note that in each case
41. in the product data sheet or owner s manual d malfunction resulting from misuse or abuse of the product or e malfunction occurring at any time after repairs have been made to the product by anyone other than Mark IV Audio Service or any of its authorized service representatives Obtaining Warranty Service To obtain warranty service a customer must deliver the product prepaid to Mark IV Audio Service or any of its authorized service representatives together with proof of purchase of the product in the form of a bill of sale or receipted invoice A list of authorized service representatives is available from Mark IV Audio Service at 600 Cecil Street Buchanan MI 49107 800 234 6831 or FAX 616 695 4743 Incidental and Consequential Damages Excluded Product repair or replacement and return to the customer are the only remedies provided to the customer Electro Voice shall not be liable for any incidental or consequential damages including without limitation injury to persons or property or loss of use Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you Other Rights This warranty gives you specific legal rights and you may also have other rights which vary from state to state Electro Voice Electronics are guaranteed against malfunction due to defects in materials or workmanship for a period of three 3 years from the date of original purchase
42. ither the chassis ground indicated by the earth symbol or signal ground indicated by the triangle symbol The unit is shipped with pin 1 connected to the chassis This position offers the best isolation from ground loops and noise if you use a uniformly shielded twisted pair cable that does not include a drain wire You should only use the signal ground position if you are using unbalanced signal sources Figure 1d Balanced source with Figure 19 Balanced source with header input auxiliary out termination resistors CHANNEL 3 INPUT CHANNEL 1 Si 4 E S Figure 1c Alternate connection for Figure 11 Unbalanced source with Figure 1g Alternate connection for unbalanced sources using auxiliary out unbalanced sources with 6 Electro Voice Inc a MARK IV company OUTPUT CONNECTIONS CONFIGURATIONS Speaker output connections are made to the four terminal barrier strip connector located below the input module The output configurations are determined by the three position mode switch located to the right of the input module and the load switches located to the left of the input module CHANNEL 2 INPUT Dual Mode In this configuration the amplifier is operating as two independent power amplifiers Each speaker load can be independently configured for 8 4 ohm or 70 Volt line operation using the load switches located to the left of the input module Figure 2a CHANNEL 2 INPUT NOT USE
43. l disable channel one See ILLEGAL MODE for more information Operation Manual for the AP2200 amp AP2400 amplifiers Ey ElectroVoice CHANNEL 2 INPUT NOT USED TURN CCW CHANNEL 1INPUTONLY MODE SWITCH RIGHT POSITION Figure 26 Bridged Mono Connections CAUTION Unlike the other modes where the speaker load has one terminal connected to ground bridged mono mode provides a differen tial floating signal to the speaker load and there fore any test equipment that is used to measure this signal should also have a floating ground WARNING The load switches must be set in tandem when operating in bridged mono mode If one load switch is set for 70 volt while the other is set for 8 4 ohms while in this mode the protection logic will disable channel one See ILLEGAL MODE PROTECTION for more information 1 F SSS 5 d N t T 1 e is DICE Pier 3 SIS Iss Bridged Mono this mode a single speaker load is connected across the amplifier outputs Figure 2c For proper operation the signal source is connected to the channel one input The channel two input level should be fully counterclockwise In this mode the amplifier is providing a true balanced output For 8 4 ohm load configuration the load impedance should not be less than 8 ohms A 70 volt load configuration in bridged mono mode allows driving a 100 volt distributed system or a
44. mmodate this output level Electro Voice Inc a MARK IV company This type of system requires a speaker that includes a small power converting transformer Each speaker is rated not by its load impedance but by the power that it consumes from the amplifier For example if you have speakers that have a 70 volt rating of 10 watts each then you can parallel twenty of these speakers to each channel of an AP2400 amplifier The total power is evenly distributed among each speaker Even if several speakers are disconnected from the line the remaining speakers will still only consume 10 watts each The power can also be unevenly distributed For example five 20 watt speakers can be paralleled with ten 10 watt speakers as long as the total power does not exceed that of the amplifier that is driving the 70 volt line In this case each 20 watt speaker will be 3 dB louder than the 10 watt speakers The relatively high impedance of a 70 011 line allows longer cable runs to remote speakers see OUTPUT CABLE SELECTION CALCULATING POWER LOSSES and DAMPING FACTOR for more details on the affects of cable length on a speaker system Any amplifier that drives a 70 volt line must be capable of providing an output of 200 volts peak to peak This is why many amplifiers require expensive step up transformers The AP2000 series can drive the 70 volt line direct without using step up transformers A 140 volt system can be directly driven using
45. on Since a grounded bridge consists of 2 amplifier stages for each output there are 2 independent idle adjustments for each channel One is for the high side amplifier that drives the positive output terminal and the other is for the low side amplifier which sinks or sources the return path ground terminal Refer to Figure 6 for the following procedures 1 The Channel 1 high side bias is adjusted with R102 for a dc voltage measure of 5 mV 0 1 mV across the outside legs of R108 2 The Channel 1 low side bias is adjusted with R125 for a dc voltage measure of 5 mV 0 1 mV across the outside legs of R122 3 The Channel 2 high side bias is adjusted with R202 for a dc voltage measure of 5 mV 0 1 mV across the outside legs of R208 4 The Channel 2 low side bias is adjusted with R225 for a dc voltage measure of 5 mV 0 1 mV across the outside legs of R222 Electro Voice Inc a MARK IV company screws ACCESS SCREWS Figure4 Access OFFSET IC em R7 CH 1 v SOO Bag e e 2 TOP COVER SCREWS ACCESS SCREWS R26 CH 2 OFFSET DC bias trim pot locations A 5 e 18 GE S EN t 15 Idle current trim pot locations Figure 6 8125 CH 1 LO SIDE BIAS 8102 CH 1 HI SIDE BIAS Electro Voice Inc a MARK IV company Sip e HI SIDE BIAS R20
46. tant part in quality sound systems Small wire gauges can waste power and reduce the damping factor at the speaker terminals This can add coloration and muddiness to the sound To help offset this problem Tables and have been assembled to enable you to calculate the power losses in the speaker cable Electro Voice Inc a MARK IV company WARNING Do not use the 70 volt position as a method for increasing gain to a low impedance load When the supply voltage is increased for 70 volt operation there must be a corresponding increase in the load impedance Otherwise the resulting high voltage and increased current will cause the amplifier to overheat and shut down WARNING Do not operate the amplifier within a completely closed unventilated housing EV 10 Elechrol oice Operation Manual for the AP2200 amp AP2400 amplifiers CALCULATING POWER LOSSES To calculate the total power loss in the speaker cable multiply the power loss per foot of the 2 wire cable using the appropriate table below by the length of the cable in feet For example suppose an installer uses 160 feet of 12 gauge 2 wire cable with an 8 ohm speaker system connected to an AP2200 amplifier The total power loss in the cable is Total Power Loss 0 0405 watts foot x 160 feet 6 5 watts Does this mean that whenever the amplifier produces 100 watts of output power 93 5 watts 100 watts minus 6 5 watts will be delivered to th
47. the total power loss in the Electro Voice Inc a MARK IV company DCR un 0 00081 0 00121 0 00204 0 00324 0 00515 0 00819 0 01302 0 02070 0 03292 DCR H m 0 00264 0 00421 0 00669 0 01063 0 01691 0 02685 0 04289 0 06764 0 10658 11 gege a lo adio Sree DECENT o 4 Operation Manual for the AP2200 amp AP2400 amplifiers 17 67 cable is roughly the same between 7 and 8 watts even though the cable length 7 was extended from 22 1 to 298 feet This illustrates the advantage of high voltage systems for distributed sound SPEAKER PROTECTION Sometimes it may be desirable to use in line fuses to protect loudspeaker systems Figure 3a It is difficult however to determine the proper fuse value with the correct time lag and overload characteristics to match the limitations of a speaker system Fuse values are shown for the given power and load in Table IV The values are calculated for fast blow fuses which carry 13596 of their current rating for an hour but will blow within 1 second at 20096 Other fuse values may be calculated for different power levels from the following equation JPout ZL ZL 1 35 Fuse Value Pout rated power of amplifier Figure 3a Optional protection ZL z load impedance fuse connection TABLE iV Speaker Protection Fuse Chart Power Watts 100 3 70 2 62 1 85 150 4 54 3 21 2 27 200 5 24 3 70 2 62 300 6 42 4 54 3 21 400

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