Infinity Speaker PS28 User's Manual
Contents
1. o peeeeeeeeeeeeeeeeeeeeegeeeeeeeeeeegegeeeeeeeeegeeeeeeeegegeeeeeeeeeeegeeeeeeeeeeegeeeeeeeeeegeeeeeeegegeeeeeeeeeeeeeeeeeeeeegeeeeeeeeeeeeeeeeee e e e D191 Ucc e e gt E 6 1N4148 25 81328 e P101 IU J R111 bg E Sara e mr 220u 18U 8110 1 9 STB R118 2N5401 e e g e S R105 e 15U lt 5 R125 A e GND i D104 M 197 SS 184002 15U 15U E 11 356 Nix e 9 T PIC gt sr R sn mm R129 E PTC e 2N555 14 d e co C106 E z IN 05 ch473 P182 e 9 To PRE E R112 1211 c188 SN piez 9 9 9 O Kat DA 9 8 1 cies b 4 e 3U3 e u ze To Speaker 9 C118 M U101 E 1084 16 9 R193 C103 4558D A rio 113 06 R122 R124 X E 1 e m RE C189 m 4 e e 960716 e e 47u 25U 7 e 7 R e S IER t SCH moe TIRU 1 F e anal2. L IN JK2B2A 15U R213 R216 L U201 C AS 026128 SC 028229 1k 1K 220P TLO74 py TLO 4 Z2MSC UE C216 1 SEN C206 C288 10 7 R226 R227 2 pep L 10k 1u I 8 7 3L R 9 1 9 e gt 5 18K 20KB 12K 28KB aoe Ws e 11 825 n2234 578K 22255 7 UR202 B 2717 Ke Ne 8214 lt 8 S lt KEE 18K LMSC NTN TAN 534b ud 1MSC 174030039 R211 5 1K 10u 0242 4 n Lli af ag S Saw Sym 0207 220P a D UR201 H 15U 5 OKAY c U282 D C201 E 2 FSN PSA 4 99K 2027 C224 1074 JK203 en O 6200 ha i T x EI 7211 C225 220 ms B t d 2 2UF 0228 220P gt R237 R238 u X13 2s gt C221 222 n d ee T 1 it 27 22K SE 8299 Pes X 47MSC drains G all C202 i L074 SSS n y ust 202 9 Po PENDS L J i i N i MUT ih N Syg Blas ET 15U0 US EE 15U C205 3S y P4 U282 1 N E HSU ra Je AGND 2 d C251 15U EN 2 PTC Lo C253 OUT 18u HS 201 C213 asy 1751C07U01 H 7 PB U282 18K 18u 15U1 1 o 1 R253 5 1U SEN Re Tao D N Acne IC18IbO
3. Qty EE jas 192 027c1815gr e 92 201d882y e transistor KSD882Y RoHS 1 92 202b772y e transistor KSB772Y RoHS 1 92 991d669a e transistor HI SINCERITY HSD669A RoHS NPN 1 92 992b649t e transistor HSB649T RoHS tC 97 00kbl405 e diode 4A 500V KBLA05 RoHS h 1 97 031n4148 e diode 100mA 75V SIGNAL 1N4148 ROHM RoHS 1 17 A ER EN BEDE 2 A 2 2 Miscellaneous 1 97 101n4002 e diode 1N4002TB RoHS 1 1 71 udhss124d e relay 5A 24V UDH SS124D RoHS 75 1c07v01 e wire connector amp base 7PIN PITCH 2 5mm RoHS 1 75 1d02v01 e wire connector base 2PIN PITCH 3 96mm RoHS 1 wire connector amp base 3 PIN PITCH 3 96mm JST VH cut off the middle PIN RoHS 93 3m2520 e 23 AL 00020 0LAE HEAT SINK 653231 1 351 AM03014A094 E M3 14 machine screw black RoHS 52 AM03008D040 E 61 FE 00051 0LAE 61 NYL 00054 0LAE 62 FE 00041 0LAE REESE CE ofa 2M ala N a o o Co lt o a for Q107 Q108 2 1 amp IMTERPCB EA E 10 16103j26 e Resistor 10K 1 6W 5 CF 26mm RoHS 1 R301 R303 R304 R308 R309 R314 R340 R344 R302 10 16103j26 e Resistor 10K 1 6W 5 CF 26mm RoHS 10 16183j26 e Resistor 18K 1 6W 5 CF 26mm RoHS 10 16223j26 e Resistor 22K 1 6W 5 CF 26mm RoHS 2 R310 R312 10 16273j26 e 10 16333j26 e 10 16472j26 e 2 Resistor 470K 1 6W 5 CF 26mm RoHS Re
4. Nol T1PS C Ll Us 1015 47 33K e e MC184 e e L D Q111 Q112 C111 e 1 Ze aia C1815L C1815 25 04 1 21348 Dillo mus e EY H 1N4148 220u 18U R130 AC120U 66Hz e L 250 S C130 4K7 4 d PERIA R116 2 l l TIE e e E u N u u e 1 Ucc 9 D116 R104 9 56K e Q117 e D882 R146 9 9 e gt 15U 15U 338 e R145 UI TT88599868580 E 9 R135 S Risch 2137 R152 5 R147 E R148 D188 C121 1N4148 i TGD 580 BE 9 9 R143 C123 C126 S100 9 iW 2 Selle W51 EL MU 223 Mc 223 DE c ee amp N BL ae 0125 C128 luf 400U e gt IS 1 GND 9 5 5 R144 EN 2 PR 1 I EN MC223 MC223 x 1 9 9 11334 TT gt C124 C127 SE e e PEK c118 es Ger 9 P u 9 gi Div 153 150 CD14 220758 9 9 x C113 4558D B R151 e 813915 C128 680 4 C122 e W EN TON zem d t a FUSE 9 9115 D187 Y 5 gt n e c1815 6U2 R154 15 R150x e e L ai ai i Il x T2 5AL 258U e 7 R149 e 15U 4 4 338 4 4 e 1189 9 9 B772 9 9 9 9 9 9 9 9 e FILENAME 3 PS28U7120U REUISION 61 9 9 9 9 MODEL NO e10 7510 05064 E PAGE 3 OF 3 e e CUSTOMER INFINITY DATE 2006 7 27 e e e e DWN BY ZHRNGHEI 9 09 0 0 0 0 0 0 0 0 0 0 0 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0909000000 99000000000000000000000000000000000000000 24
5. SUB OUT L R CROSSOVER 9 NOTE Some receivers have one subwoofer output In that case it is recommended that you use a Y connector not included to maximize performance OPERATION Power On Crossover Adjustments Plug your subwoofer s AG cord into a wall outlet Do not use the The Crossover Adjustment Control determines the highest outlets on the back of the receiver frequency at which the subwoofer reproduces sounds If your main Initially set the Subwoofer Level Control to the min speakers can comfortably reproduce some low frequency sounds position set this contro to a lower frequency setting between 7 and 100Hz This will concentrate the subwoofer s efforts on the Turn on your sub by pressing the Power Switch on the rear ultradeep bass sounds required by today s films and music If you panel Turn on your entire audio system and start a CD or movie are using smaller bookshelf speakers that do not extend to the soundtrack at a moderate level lower bass frequencies set the Crossover Adjustment Control to a higher setting between 120Hz and 150Hz Auto On Standby NOTE This control will have no effect if the LFE Input is used With the Power Switch in the ON position the LED on the If you have a Dolby Digital or DTS processor receiver the Low Pass rear panel will remain lit in red or green to indicate the Frequency is set by the processor receiver Consult your owner s On Standby mode of the subwoofer manual to lear
6. x CEC 5 a oocu d 8 Dd Frezy N 963 Ap Peza N poze d 1 CDI fe Liza dese 2110 Ir gl EIZO N 17 Winfinity PS series PS28 subwoofer D302 R305 H302 A Infinity PS series PS28 subwoofer Integrated Circuit Diagrams 4558 Dual Op Amp U101 203 OPAMP QUAD 14P DIL TLO74 U201 202 301 A OUTPUT DR INPUT D A INPUT 8 OUTPUT INPUT D A INPUT 16 B INPUT INPUT C V B INPUT INPUT C OUTPUT C TIP35C TIP36C Q107 108 25A1015 25C1815 Q114 116 Q101 102 111 116 118 206 207 301 302 gt H 2 Collector SS H 2 Collector 3 Base 3 4 1 Emitter SEH 23 1 1 Emitter 23 HSD669 HSB649 KSD882 KSB772 2N5401 ebe Q105 106 117 119 1 Emitter Q104 110 Q103 109 2 Collector S 3 Base eem lt ss 3 3 Collector H 3 Collector 1 2 3 2 2 Base Base 1 y 1 Emitter 12 y 1 Emitter LOW LEVEL HIGH LEVEL INPUT LFE INPUT 0000000000000000000000000000000 PS series PS28 subwoofer Qo Infinity
7. PS28 Test Set Up and Procedure AC VOLTMETER 1 VOLT SIGNAL N A INTEGRATED AMPLIFIER OUTPUT FROM GENERATOR SYSTEM AURAL SWEEP TEST Equipment needed Function signal generator sweep generator Integrated Amplifier Multimeter Speaker cables General Unit Function UUT Unit Under Test Switches knobs on the amplifier faceplate Low Pass Frequency Adjust full CW 150Hz Phase switch either position 1 From the signal generator Connect both right and left line level inputs RCA not the LFE jack to signal generator and UUT Use Y cable if necessary from mono source On the amplifier turn the LEVEL control full Counterclockwise Min Turn on generator adjust to 100mV 50 Hz Plug in UUT turn the power switch ON Turn LEVEL control full Clockwise Max LED should now be Green immediate bass response should be heard and felt from rear port tube opening Ur N Sweep Function 1 Follow steps 1 5 above using a sweep generator as a signal source 2 Sweep generator from 20Hz to 1kHz Listen to the cabinet and drivers for any rattles clicks buzzes or any other noises If any unusual noises are heard remove woofer and test Driver Function Woofer 1 Remove woofer from cabinet detach and wire clips 2 Check DC resistance of woofer it should be 4 4 ohms 10 3 Connect a pair of speaker cables to driver terminals Cables should be connected to an integrated amplifier
8. S L Py s R221 1g d X 8207 P AT U22378 174030039 or amd a 15580 NY 214 2207 S lt R251 1220 C230 y 5 7 JK282 C R215 FAR NA PSA 3 an 1 375 150 IK Sa ale TSN Zug 2260 470K 2 ew 5 3 7K ps s I Et tos 2 N 1 R249 3 Col R258 SFR Ze N 142 1228 R254 72 x x i DVS N FEN SEN FT y 33K coe 3 I Es H lt j 954 ESE 2 5 974 fa p IN4148 IKS NS Z 077 N N U201 AT gt 4558D D214 NSN T 3 U283 A 1 108u 16U C234 D E S C232 C233 00 16 UR gnd FILENAME PS28U 128U REVISION A 1 C3 MODEL NO 010 7510 05064 E PAGE 1 OF 3 CL SR E gt 0 68 CL CUSTOMER INFINITY DATE 2006 7 27 D D cL DLN BY ZHRNGHEI 00000009 9 9 9 9 9 9 9 9 6 6 9 9 9 9 69 9 6 9 9 6 69 9 9 9 69 9 9 9 9 6 6 9 9 6 9 6 9 69 9 9 6 6 6 6 6 66 66 6 6 22 PS series PS28 subwoofer Winfinity e D303 R248 e e 1N4148 10K s e e
9. 04002 E M4 screw cap adding pad black RoHS 362 FE 00013 OLAE PCB support L TYPE t 1 6mm S P C C 89 9 1 6T RoHS 16 Winfinity PS series PS28 subwoofer A e ao 3 DLE Ze sr
10. 101 Q115 Q116 R138 etc Set R138 to R140 S yes Voltage is 0 51 VDC yes Check P102 signal Amp ass y is OK Finish 12 PS series PS28 subwoofer NYS PS 28 120v Electrical Parts List pu AAA A A C NM 3 AAA u A w A A PREAMP PCB Jj Resistors e el j Jj Bee T 218260 2 1 4 4 R213 R214 R215 R254 R253 R212 R216 R217 R220 R221 R222 R225 R226 R228 R232 R235 R240 10 14122j26 e Resistor 1 2K 1 4W 5 CF 26mm RoHS 1 10 16102j26 e Resistor 1K 1 6W 5 CF 26mm RoHS 110 16103j26 e Resistor 10K 1 6W 5 CF 26mm RoHS 10 16104j26 e Resistor 100K 1 6W 5 CF 26mm RoHS 10 16105j26 e Resistor 1M 1 6W 5 CF 26mm RoHS 10 16123j26 e 10 16183j26 e 10 16205j26 e 10 16223j26 e 10 16224j26 e 10 16273j26 e Resistor 27K 1 6W 5 CF 26mm RoHS R251 i R237 10 16333j26 e Resistor 33K 1 6W 5 CF 26mm RoHS 5 2 2 2 1 1 1 1 1 1 9 10 16472j26 e Resistor 4 7K 1 6W 5 CF 26mm RoHS R200 R207 R258 R260 10 16473j26 e Resistor 47K 1 6W 5 CF 26mm RoHS 1 R219 1 3 1 1 1 1 1 1 1 7 7 10 16512j26 e 10 16562j26 e 16 164531f26 e 16 164991f26 e 15 h203b208 e 15 h503a104 e e EE EE 29 a224j633 e metalize CAP 0 22uF 63V 5 MSC RoHS 29 2564j633 e 30 2b221k503 e 30 3f1042503 e 30 ch220k503 30 2b220k503 e i 32 103j503 e Mylar capacitor 0 01uF 50V 5 RoHS C223 C224 32 104j503 e Mylar capa
11. 3 sec Functional AC Power Applied Transients Pops ATO Transient 5 mV peak 10 Speaker Outputs Turn on Transient 50 mV peak 100 Speaker Outputs AC Line cycled from OFF to ON 2 PS series PS28 subwoofer Parameter Specification Unit QA Test Limits Conditions Notes Winfinity Turn off Transient 50 mV peak 100 Speaker Outputs AC Line cycled from ON to OFF Efficiency Stand by Input Power nom line voltage Maximum allowable input power under nominal Input voltage and frequency HOT or COLD operation Power Cons rated power nom line voltage 100 Watts 4 Ohms nominal line voltage Protection Short Circuit Protection YES Functional Direct short at output Thermal Protection 65 deg C Functional 1 8 max unclipped Power Temperature rise should not exceed 35K rise DC Offset Protection Line Fuse Rating 120 VAC YES 2 5 Amps Functional DC present at Speaker Out leads Type T or Slo Blo Relay or crowbar for driver fire protection External fuse with UL SEMKO rated holder 230 VAC 1 25 Amps Type T Low breaking capacity PS28 PACKAGE Owner s Manual PS28 BE BK CH 406 000 05518 E PCS PS28 BE BK CH 230 406 000 05519 E PCS EPE Polyform 431 000 05955 E 1 PCS Sa Se Cloth Sheet 2 PCS EPE Polyform 431 000 05956 E 1 PCS Outer Carton PS28 BE 400 000 07233 E 1 PCS PS28 BE 230 400 000 0
12. 4 107 Q188 IN G105 9106 a x D Thermal Ovdrload Proctection PRETECTING CIRCUIT LIMIT 4109 4110 4111 4112Z or STB a 4 ine 15U Q113 Q11 GND me 10 Ne PTC IN POWER SUPPLY D110 ZL 0117 0118 0119 PS28 UL BLOCK DIAGRAM POWER AMPLIFIER PONER SOURCE PRETECT e e ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep a 11 PS series PS28 subwoofer IF PS28 Troubleshooting Flow Chart AMP no signal out Check Fuse Transformer D110 etc DC voltage check Vcc yes yes Dee Check Q117 118 119 D109 etc Check 15VDC yes yes LED light green or red Check Q206 0207 U203 etc yes LED light green yes Check U201 CheckU201 U202 VR201 B VR202 et Check U202 pin14 signal pha sona lied Ge Check limiter board C304 Check U301 R343 R344 C340 Q301 Q302 etc LED red Check VCC amp VCC DC voltage Check J123 J124 etc Test R121 R122 signal yes Check Q107 Q108 Q105 Check RY101 D102 Q113 Q114 etc Q106 0103 Q104 U101 etc yes Check U
13. 7234 E PCS PS28 BK 400 000 07237 E 1 PCS PS28 BK 230 400 000 07238 E 1 PCS PS28 CH 400 000 07235 E 1 PCS PS28 CH 230 400 000 07236 E 1 PCS CONTROLS AND CONNECTIONS Rear Panel O Subwoofer Level Control O Crossover Adjustment Infinity Systems H A Harman International Company I 0 3 Phase Switch O LFE Input CROSSOVER 2 Line Level Inputs DN Hz WI O Power Switch 1805 PHASE 1 e pe LINE LFE 600 0 O A RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING SHOCK HAZARD DO NOT OPEN AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK AG DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE FUSE 120V AVERTISSEMENT POUR PR VENIR LES RISQUES DINCENDIE OU T2 5AL 250V 60HZ DE CHOC ELECTRIQUE EVITER D EXPOSER CET APPAREIL A LA PLUIE OU A UHUMIDITE TYPE 200 Watts WARNING FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY WITH SAME TYPE OF FUSE AVERTISSEMENT UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE PS series PS28 subwoofer IF SUBWOOFER CONNECTIONS CHOOSE THE SUBWOOFER CONNECTION THAT Is Most SUITABLE FOR Your RECEIVER PROCESSOR If you have a Dolby Digital or 6 receiver processor with a low frequency effects LFE or subwoofer output 0 id OR CROSSOVER If your receiver processor does not contain a Dolby Digital or DTS HEGEINER FEOGESSUR processor but has a subwoofer output
14. OO Es vier CL SE eze T cazzo 5 LATER 9 secu 1663 77 1219 E 2219 NNN EY d E jO F zezu i s J ES HE n ceza d ALAA GAP Kb o T Ea 2 y elo 3 3 2122 r2 PA seza 1 F a Fea8eeu N TT e 32 d hezza 3 18 N m 8129 5 szzoW a a al gt T ozzy ZZIH JT GA ZIN DCH de B Ld E cul ES 122 5 N MN 2 zu E P y aa 98294 een mo UR T ziza TT 21 gag catu 80 Tied 1 CA Ree dnas EN 4 BETO 2029S E gt LA 3123 EA 8922 7 2 2 TT peazo AA Lu 4 L eizud Co s 5 E GPZ Jw O O dE NO ES gozo E gt S zb gt 1 9225 6118 sab LO KEDE 2118 61Zy _ 2874 T F A zzzu SICH LZ Lesen D TETES 5 coza I CADIZ E SN EA ZIZI 8620 u 2 3 LO ozu 4 F 1 e T L eszu Cl 9066 I seza e We 22990 7 17 ea TED als 1822 4 AE ul gt lt 60z4 T F 4 zozo CM d e SC 52 POCO ecco CC A of m no A FELL D S 4 il BESS saza 23 DD 661 X ml eee cc goza T L 2C4 gt gt 25 ML 3 ft 2010 COT TD m ch e n 1 de 99zu T 1 a 12 0 siza 9cH CI 776 Celu 2019 gc A 80283 en EDSFZI amp zoeu T E I 40 O e H GG ER Iezo AS 9
15. Qo Infinity PS Series PS28 Subwoofer SERVICE MANUAL Infinity Systems Inc 250 Crossways Park Dr Woodbury New York 11797 Rev1 3 2007 PS series PS28 subwoofer Winfinity CONTENTS BASIC SPECIFICATIONS emen 1 DETAILED SPECIFICATIONS 2 PACKAGING ea EE 4 CONTROLS AND CONNECTIONS 5 OPERATION sages aia r aaa aa 7 EXPLODED VIEW PARTS LIST 8 TEST SET UP AND PROCEDURE eese 9 BLOCK DIAGRAVM 10 TROUBLESHOOTING FLOW CHART 12 ELECTRICAL PARTS LIST 120v 13 FOBIRAVWINGS Eege a 17 SEMICONDUCTOR PINOUTS 21 SCHEMATICS 120v 22 Basic Specifications PS28 Powered Subwoofer Frequency Response Maximum Amplifier Output Crossover Frequency Driver Dimensions H x W x D Weight 35Hz 150Hz 3dB 150 Watts RMS 20Hz 150Hz with lt 0 1 THD 300 Watts Peak 50Hz 150Hz 24dB octave continuously variable 8 200mm 17 7 8 x 10 5 8 x 16 1 2 454mm x 270mm x 419mm 31 7 lb 14 4kg Infinity continually strives to update and improve existing products as well as create new ones The specifications and construction details in this and related Infinity publications are therefor
16. R342 1 e 4 7K e TLO74 B 5 R343 C385 4 T e Sao 0381 4 7K C5104 E 2 e S 1 3 e TOK P302 e e i R344 CA 9 9 GR3B e 5 P30 LIMIT 5 4 PHA e USB 1 eX 309 5 RIED e PHASE ear STB e e TLO74 C er NER NIS TLO74 A e e g 0301 q dE t 15U e e 18 hz GND e 1N4148 Y e x 4402 e 15U e x Rods 83108 Y MIR3SO2 11 3K N R312 PTE Hi j 22K OUT e e 13 Y D392 C304 2 R305 306 Lass V C303 474250 e 14 33K et 10K GE 23 e 4148 1 1 1 e MC103 e U381 C39 ase2 2 9 9 y TLO74 B 22u 580 n R387 h TE PIR313 R3140 9 S R303 e e e e e e e e e e 5 u e e FILENAME PS28U 120U REUISION 824 9 e e e C MODEL NO 218 7519 85864 E PAGE gt OF 3 e WIN 1 gt S e DT N N CUSTOMER INFINITY DATE 2006 7 27 e e Vic e e p DWN BY ZHANGNEI 0000000000000000000000000000000000000000000000000000000000000000000000000000000000 23 PS series PS28 subwoofer Infinity
17. citor 0 1U 50V 5 RoHS C215 C217 l RoHS R234 VR202 VR201 5 2 2 s EE ME 4 1 ze 1 EN 10 16474j26 e Resistor 470K 1 6W 5 CF 26mm RoHS 1 R352 3 BE s s s j joc nj AAN 1 102186 EE ft 318 CAE 9 C207 C208 C210 C211 C212 C214 C220 C230 C249 7 C232 C242 C244 C245 C246 C252 0254 EM 1 C229 35 3105m50 e 1 35 3106m50 e electrolytic CAP 10uF 50V 22096 RoHS 7 C206 C213 C231 C241 0243 0251 C253 35 3107m16 e 35 3225m50 e metalize capacitor 0 47U 63V 5 MSC RoHS pue A s s Semiconductors i AA CA ov transistor 28C1815GR TOSHIBA RoHS NPN A 22 A a Te __ en Miscellaneous f De SCC JUMPER WIRE 26mm RoHS 1 30 ALLJD215D210 E oue ee 2 pu PS series PS28 subwoofer W Infinity Part Number ty Reference Designator POWERMAINPCB Resistors 110 14472j26 e Resistor 4 7K 1 4W 5 CF 26mm RoHS R147 R150 110 14681j26 e Resistor 6800 1 4W 5 CF 26mm RoHS R148 R151 110 16101j26 e Resistor 1000 1 6W 5 CF 26mm RoHS R120 110 16102j26 e Resistor 1K 1 6W 5 CF 26mm RoHS R124 110 16103j26 e Resistor 10K 1 6W 5 CF 26mm RoHS R134 110 16105j26 e Resistor 1M 1 6W 5 CF 26mm RoHS R143 110 16123j26 e Resisto
18. e subject to change without notice PS series PS28 subwoofer INFINITY PRIMUS PS28 150W Powered Sub Plate Amp Qo Infinity LINE VOLTAGE Yes No Hi Lo Line Unit Notes US 120VAC 60Hz Yes 108 132 Vrms Normal Operation Europe 220 240VAC 50 60Hz Yes 220 230 Vrms Normal Operation Dynamic power RMS Reference Type Class AB D other AB AB n a 120V model External Sink required for Class AB Type Class AB D other G G n a 230V Model Impedance used for electrical Rated Load Impedance 4 Ohms n a Nominal measurements System average impedance 8 79 Ohms n a Average impedance from 10 to 500Hz Voice coil DCR 4 35 Ohms n a Reference Rated Output Power 100 Watts 95 Single input driven THD Rated Power 0 5 1 22K filter THD O 1 Watt 0 1 0 3 22K filter DC Offset 10 mV DC 50 Speaker Output Measured at speaker terminals Output Damping factor gt 100 40 power 90 Watts AVG Power over the first 4 consecutive peaks when tested with a burst sigan 3 20 at 50 Hz Highest RMS value Reference Residual Noise Floor mVrms max Input Sensitivity Input Frequency 50 Hz 50 Nominal Freq Line Input L amp R 16 5 mVrms 2dB To 1W Single input driven AP Zo 600 Ohms LFE Input 11 7 mVrms 2dB To 1W LFE input driven only AP Zo 600 Ohms System Gain Line input 41 dB 1dB G 118 Single input driven AP Zo 600 Ohms System gain LFE input 44 dB 1dB G 165 LFE input driven only AP Zo 600 Ohms Signal t
19. fed by a signal generator Turn on generator and adjust so that speaker level output is 5 0V 4 Sweep generator from 20Hz to 1kHz Listen to driver for any rubbing buzzing or other unusual noises L R IN L R OUT 22882828 SSS SSS SS LOW LEVEL L R IN LFE IN PS series PS28 subwoofer VOLUME 0 INPUT OP BUFFER AMP LOW PASS FILTER LOW PASS FILTER 0 HI PASS FILTER 0 U281 B 0 122278 U202 C 0 VOLUME CONTROLLER 0 HIGH LEVEL INPUT OUTPUT HI PASS FILTER PHASE LIMITER CONTROAL BUFFER AMP U281 D 0361 9302 OUT 0 OPT 0 ne LIMIT 0 Su301 OFF ow 0 in 15U E 0 WINDOW COMPARATOR GND 0 15U 0 U381 B 15U Ne PIC 3 U3017C gt el OUT 0 LIMIT 0 M281 LIMIT BOARD 0 9 EE EE EE i 0 OLAN O e 1 0 gt WAVEFORM CONVERTER VOLTAGE CONVERTER VOLTAGE COMPARATORS 0 0206 7 22 MUTE PTC 0 R246 0 MUSIC SENSE Y LED1 0 AUTO ON OFF 0 Y 0 PSZ8 UL BLOCK DIAGRAM PRE amp LIMIT 0 e e ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ep ap d 10 Qo Infinity PS series PS28 subwoofer Qo Infinity DIFFERENTIAL AMPLIFIER QUIESCENT POINT DRIVER CIRCUIT POWER AMPLIFIER RELAY RL1 Q1 1 Q102 Q103 Q10
20. n how to view or change this setting RED STANDBY No signal detected Amp Off GREEN ON Signal detected Amp On The subwoofer will automatically enter the Standby mode after approximately 10 minutes when no signal is detected from your system The subwoofer will then power ON instantly when a signal is detected During periods of normal use the Power Switch can be left on You may turn off the Power Switch for extended periods of nonoperation e g when you are away on vacation Adjust Level Turn your Subwoofer Level Control up to the position halfway If no sound emanates from the subwoofer check the AC line cord and input cables Are the connectors on the cables making proper contact Is the AC plug connected to a live receptacle Has the Power Switch been pressed to the On position Once you have confirmed that the subwoofer is active proceed by playing a CD record or cassette Use a selection that has ample bass information Set the overall vol control of the preamplifier or stereo to a comfortable level Adjust the Subwoofer Level Control amp until you obtain a pleasing blend of bass Bass response should not overpower the room but rather be adjusted so there is a harmonious blend across the entire musical range Many users have a tendency to set the subwoofer volume too loud adhering to the belief that a subwoofer is there to produce lots of bass This is
21. not entirely true A subwoofer is there to enhance bass extending the response of the entire system so the bass can be felt as well as heard However overall balance must be maintained or the music will not sound natural An experienced listener will set the volume of the subwoofer so its impact on bass response is always there but never obtrusive CD Phase Control The Phase Switch determines whether the subwoofer speaker s piston like action moves in and out with the main speakers 0 or opposite the main speakers 180 Proper phase adjustment depends on several variables such as room size subwoofer placement and listener position Adjust the phase switch to maximize bass output at the listening position PS series PS28 subwoofer P528 Exploded view T on OOo Se DD 5 r cu Part name Not For Sale 327 010 00624 E 249HTPS 01003 OBAE Not For Sale Not For Sale Not For Sale 352 AM04020D210 E 20PR10DAG FW06 E 352 FM04014D609 E 213 080 00488 0VAE 352 DM04525D597 E 316 ABS 05218 0VAE 320 ABS 00195 E 352 M04025D604 E 320 RUB 00199 E 244 080 05226 0VAE Description PS28 Cabinet Grille Cup Port Tube Dacron acoustic damping Material Dacron acoustic damping Material PS28 Amplifier Screw For Amplifier 8 Woofer Screw For 8 Woofer 8 Trim Ring Screw For 8 Trim ring Infinity LOGO Plastic Foot Screw For plastic foot RUBBER foot Grille A Infinity
22. o Noise SNR A Weighted 100 dBA 85 rel to rated power A Weighting filter SNR unweighted 85 dBr 80 rel to rated power 22K filter SNR 3 1W unweighted 65 dBr 60 rel to 1W Output 22K filter Volume max w A P Swept Bandpass Measurement Line freq harmonics Input Impedance Line input L amp R LFE gt 10 K ohms n a Nominal Filters Low Pass fixed or variable Variable 2098 Crossover range 50 150 Hz Subsonic filter HPF Hz 2dB Fixed Limiter yes no YES Functiona THD at Max Output Power lt 1 Functiona Features Line Level inputs L amp R YES Functiona Dual RCA conenctor RED WHT LFE Input YES Functional Single input Yellow color Phase Switch yes no YES Functiona Volume pot Taper lin log LOG Functional Variable crossover YES Functiona ATO YES Functiona LED indicator YES Functiona Located at the amplifier panel Input Configuration Line In L R Functional RCA inputs L R Summed to Mono Line level in LFE Functiona Signal Sensing ATO Auto Turn On yes no Functiona ATO Level 50 Hz 1 ATO Level 1 KHz 1 Functiona Functiona One input driven One input driven ATO Turn on time Functiona Amp connected and AC on then input signal applied Auto Mute Turn OFF Time Functiona T before muting after signal is removed Auto turn of time T must be 5 gt 15 Power on Delay time
23. r 12K 1 6W 5 CF 26mm RoHS R135 R139 110 16181 26 e Resistor1800 1 6W 5 CF 26mm RoHS 2 1 11 114 Resistor 1 8K 1 6W 5 CF 26mm RoHS Resistor 22K 1 6W 5 CF 26mm RoHS Resistor 3 3K 1 6W 5 CF 26mm RoHS ER ER 3 110 16152j26 e Resistor 1 5K 1 6W 5 CF 26mm RoHS 6 R103 R123 R136 R137 R141 R142 i 4 R118 R145 R152 R154 2 4 1 2 110 16392j26 e Resistor 3 9K 1 6W 15 CF 26mm RoHS 2 R105 R108 110 16393j26 e Resistor 39K 1 6W 5 CF 26mm RoHS R126 110 16470j26 e Resistor 470 1 6W 5 CF 26mm RoHS R112 R113 R115 R116 110 16471j26 e Resistor 4700 1 6W 5 CF 26mm RoHS R140 1 Resistor 4 7K 1 6W 5 CF 26mm RoHS Resistor 56K 1 6W 596 CF 26mm RoHS R132 Resistor 2 20 1 2W 5 15mm RoHS R127 Resistor 3300 2W 5 RoHS EE E Capacitors J A ATAN ME a S disc capacitor 0 1U 50V 80 20 RoHS disc capacitor 0 047U 50V 20 RoHS Mylar capacitor 0 022uF 100V 5 RoHS electrolytic CAP 22U 50V 20 RoHS electrolytic CAP 220U 16V 20 RoHS electrolytic CAP 6800U 50V 20 D25X45mm RoHS BEE MM MCCC Semiconductors T 3 3 SO E UE EZ Di DT D 197 031n4148 e diode 100mA 75V SIGNAL 1N4148ROHM RoHS 6 D101 D103 D105 D108 D117 D118_ transistor TIP36C RoHS PNP 14 PS series PS28 subwoofer CDEN Part Number Qty Reference Designator CQ O POWER MAINPCB A A
24. sistor 7500 1 6W 5 CF 26mm RoHS ee 5801 A 2 2 2 2 2 2 I m O D d o 9 E NE 16 161132f26 e metal filmResistor 11 3K 1 6W 1 MF 26mm RoHS 8 2 2 130 3f104z503 e disc capacitor 0 1U 50V 80 20 RoHS C305 C306 132 103j503 e mylar capacitor 0 01uF 50V 5 RoHS C302 C303 135 3226m50 e electrolytic CAP 22U 50V 20 RoHS C301 C340 135 3476m25 e electrolytic CAP 47U 25V 20 RoHS C304 Semiconductors SOS 190 16t1074cn e C TLO74cm st QUAD OP AMP U301 197 031n4148 e diode 100mA 75V SIGNAL 1N4148 ROHM RoHS 192 027c1815gr e transistor 25C1815GR TOSHIBA RoHS NPN Q301 Q302 197 031n4148 e diode 100mA 75V SIGNAL 1N4148ROHM RoHS D301 D302 Miscellaneous o 162 50289001 e CABLE ASS Y 280mm AWG26 WHT RoHS 162 80098201 e 90mm 28AWG RoHS 1 to 1 Tee wire connector 8 base 40PIN PITCH 2 54mm HR2 40 Pn P301 PS series PS28 subwoofer O Z O Z DOEN Reference Designator S MISCELLANEOUS MECHANICAL iwa n m mO I 123 14j70d e Ferrite Core U 16 3 8 2 13 J70 CASE RoHS E AA 130 3f472md00 e disc capacitor 4700P 400V 20 safy long foot RoHS 1 O OS 150 e8604107 e transformer El 86 60Hz 120V TT0869906580 1155 520020 8 fuse holderR3 11 ROHS 1 1 1 1 2 Gasket L 274 12 2 0T RoHS 3 3 11 3 51 52 AM03008D040 E 3 8 B type ping screw black RoHS 52 AM03010D065 E 3 10 P type ping screw black RoHS 354 GM
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