infinity-PS10-sub-sm 电路图 维修手册.pdf

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1、 PS-10 PS-12 PS-10 PS-12 PS Series Powered Subwoofers SERVICE MANUAL Infinity Systems Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 10/2004 RadioFans.CN 收音机爱 好者资料库 CONTENTS BASIC SPECIFICATIONS . . . . . . . . . . . . . . . . 1 PS-10 DETAILED SPECIFICATIONS . . . . . . . . . . .

2、. . . . . . . . . . . . . 2 PS-12 DETAILED SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . 4 CONTROLS ? TIGHTEN TERMINALS 1. 2. BLACK = ? NO STRIPE = ?STRIPE = + RED = + This figure shows how to connect bare wires to the terminals. If your receiver/processor does not have subwoofer ou

3、tputs for the left and right channels or an LFE output,connect speaker wire from your receiver/amplifier to your speakers and subwoofer using two sets of speaker wire: PS-10/PS-12 PS-10/PS-12 7 PS-10/PS-12 OPERATION Power On Plug your subwoofersAC cord into a wall outlet.Do not use the outlets on th

4、e back of the receiver. Initially set the Subwoofer-Level Control to the “min”position. Turn on your sub by pressing the Power Switch on the rear panel. Turn on your entire audio system and start a CD or movie soundtrack at a moderate level. Auto On/Stand-By With the Power Switch in the ON position,

5、the Status LED on the back panel will remain lit in red or green to indicate the On/Standby mode of the subwoofer. RED = STANDBY (No signal detected,Amp Off) GREEN = ON (Signal detected,Amp On) The subwoofer will automatically enter the Standby mode after approxi- mately 10 minutes when no signal is

6、 detected from your system.The sub- woofer 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 Gain Turn your Subwoofer-Le

7、vel Control up to the halfway position.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 confirme

8、d that the subwoofer is active,proceed by playing a CD,record or cassette. Use a selection that has ample bass information. Set the overall volume control of the preamplifier or stereo to a comfort- able level.Adjust the Subwoofer-Level Control until you obtain a pleas- ing blend of bass.Bass respon

9、se should not overpower the room but rather be adjusted so there is a harmonious blend across the entire musi- cal 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 not entirely true.A subwoofer is t

10、here 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 ne

11、ver obtrusive. Phase Control The Phase Switch determines whether the subwoofer speakers 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. Ad

12、just the phase switch to maximize bass output at the listening position. Crossover Adjustment The Crossover Adjustment Control determines the highest frequency at which the subwoofer reproduces sounds.If your main speakers can comfort- ably reproduce some low-frequency sounds, set this control to a

13、lower frequency setting, between 50Hz and 100Hz.This will concentrate the subwoofers efforts on the ultradeep bass sounds required by todays films and music.If you are using smaller bookshelf speakers that do not extend to the lower bass frequencies,set the Crossover Adjustment control to a higher s

14、etting,between 120Hz and 150Hz. NOTE: This control will have no effect if the LFE/Normal Selector is set to LFE.If you have a Dolby Digital or DTS processor/receiver,the Low-Pass Frequency is set by the processor/receiver.Consult your owners manual to learn how to view or change this setting. MAINTE

15、NANCE ANDSERVICE The enclosure may be cleaned using a soft cloth to remove fingerprints or to wipe off dust. The grille may be gently vacuumed.Stains may be removed with an aerosol cleaner,following its instructions.Do not use any solvents on the grille. All wiring connections should be inspected an

16、d cleaned or remade peri- odically.The frequency of maintenance depends on the metals involved in the connections,atmospheric conditions,and other factors,but once per year is the minimum. If a problem occurs,make sure that all connections are properly made and clean.If a problem exists in one louds

17、peaker,reverse the connection wires to the left and right system.If the problem remains in the same speaker,then the fault is with the loudspeaker.If the problem appears in the opposite speaker,the cause is in another component or cable.In the event that your subwoofer ever needs service,contact you

18、r local Infinity dealer or Infinity directly at 1.516.674.4INF or for a service center near you. PS-10/PS-12 PS-10/PS-12 8 PS-10 BLOCK DIAGRAM PS-10/PS-12 PS-10/PS-12 9 PS-12 BLOCK DIAGRAM PS-10/PS-12 PS-10/PS-12 10 PS-10/12 Test Set Up and Procedure SYSTEM AURAL SWEEP TEST Equipment needed: Functio

19、n/signal generator/sweep generator Integrated Amplifier Multimeter Speaker cables General Unit Function (UUT = Unit Under Test) Switches/knobs on the amplifier faceplate: LFE/Normal to Normal Low Pass Frequency Adjust full CW (150Hz) Phase switch either position 1. From the signal generator, Connect

20、 both right and left line level inputs (RCA) to signal generator and UUT. Use Y-cable if necessary from mono source. 2. On the amplifier, turn the LEVEL control full Counterclockwise (Min). 3. Turn on generator, adjust to 100mV, 50 Hz. 4. Plug in UUT; turn the power switch ON. Turn LEVEL control ful

21、l Clockwise (Max). 5. LED should now be Green; immediate bass response should be heard and felt from rear port tube opening. 6. Turn off generator, turn LEVEL control fully Counterclockwise (Min), disconnect RCA cable. 7. Connect one pair of speaker cables to one set of Speaker Level input terminals

22、 on UUT. Cables should be connected to an integrated amplifier fed by the signal generator. 8. Turn on generator and adjust so that speaker level input at the amplifier is 1.3V, 50 Hz. Turn LEVEL control full Clockwise (Max). 9. Green LED should light; immediate bass response should be heard and fel

23、t from the port tube opening. Sweep Function 1. Follow steps 7-10 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. D

24、river Function (Woofer) 1. Remove woofer from cabinet; detach + and - wire clips. 2. Check DC resistance of woofer; it should be 3.4 ohms10%. 3. Connect a pair of speaker cables to driver terminals. Cables should be connected to an integrated amplifier fed by a signal generator. Turn on generator an

25、d 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. 11 PS-10/PS-12 PS-10/PS-12 TECH TIPSTECH TIPS Troubleshooting tips and solutions to common service problems For models: PS-10, PS-12, SUB750, SW-10

26、 TIP# INFTT2003-02 Rev2 Subject: Replacing Output MOSFETS In the event you need to replace MOSFET transistors Q18 or Q22 as part of a repair: It is important to use ONLY the Infinity part# FE106401110, 051-640001-000, or only the brands: International Rectifier, or Fairchild. Replace both Q18 and Q2

27、2 MOSFETs in the circuit, even if only one seems to be damaged. Do NOT mix DIP,DriverPN:IR2111 8PIN (IR)1U7 054-000100-100SMD DIODEPN:ES1D 200V 1A 5D5,26,29,33,38 054-001002-100SMD ZENER DIODEPN:BZX84C10 10V SOT-23 1D35 054-001501-100SMD ZENER DIODEPN:BZX84C15 15V SOT-23 3D6,7,9 054-007200-100SMD IC

28、 Dual Op-ampPN:TL072CDR SO-8 2U5,6, 054-007400-100SMD IC; Quad Op-ampPN:TL074CDR 2U2,3 054-011400-100SMD TransistorPN:DTC114TKA SMT3 1Q7 054-033904-100SMD TransistorPN:MMBT3904LT1 SOT23 7Q11,14,13,5,8,25,9 054-033906-100SMD TransistorPN:MMBT3906LT1 SOT23 4Q6,10,12,15 054-045580-100SMD IC; Dual Op-am

29、pPN:NJM4558M-TE3 DMP-8 1U4 054-050601-100SMD ZENER DIODEPN:BZX84C5V6 5.6V SOT-23 3D24,36,37 054-414803-100SMD DIODEPN:LL4148 (Wishay)12D1-4,8,27,28,30-32,34,39, 054-540100-100SMD TransistorPN:MMBT5401 LT1 SOT-23 3Q20,24,26 Miscellaneous 041-115001-000Bead CoilYT-109111L5 042-010053-003TransformerYT-

30、10616-41PT1 043-300101-000Inductor30uH YT-100331L2 043-324300-000Inductor324uH YT-107781L4 043-560200-000Inductor56uH YT-107791L1 043-700101-000Toroidal Inductor70uH YT-106821L3 044-100100-000SMD Ferrite BeadPN:321611 600R/100MHz 12061 061-020000-000Knob ABS20 x15m/m UL94V-0 blk2 061-314002-000Strai

31、n ReliefP/N SB4F-21 061-400014-000Rubber FootID:6.2 OD:11.5 t=2mm blk1 061-700044-000Mycar13x18mm TO-2201 063-010012-000Bracket for Power TransistorP/N:TRK-11 063-321101-000Plate322x105.7x15mm BLK ABS-94V01 063-531808-000Bucket322x105.7x146.5mm blk (94VO)1 065-100200-000UL Sleeve2.5 F32-2.5(blk) 125

32、?1 071-100851-000WasherID=5.1 OD=12 t=1m/m1 072-010007-000RCA SCJ-1020 2P(G) WHT,RED1 072-040039-000TerminalPC205 (t=0.8m/m) T205MA1 072-040064-000TerminalPC250(t=0.8),T250MA1 072-040096-000Terminal(t=0.8mm) PC187(0.8)1 072-040169-000Connector2 PIN JS-1001-2 P:2.5mm1 072-060170-000B.P.W / Accessory

33、Parts1 072-060213-000BP PlugPN:A414B-3A Blk1 072-060214-000BP PlugPN:A414R-3A Red1 073-032088-600Black anodized58x32x70mm1 073-050001-000Fuse ClipP/N:CFFH12061 074-020018-000Rocker SWPN:RF1003-BB4-01 074-030002-000Tolggle SWPN:L101-T2B4QE1 074-300018-000RelayPN:943-1C-48D1 082-022607-000Wire Set #26

34、 UL1007L=74mm Black/Wht 2P Housing1 083-041802-009UL Power CordSPT-2 Black1 093-105202-300Fuse:UL GSL(2AG)FUSE:2A,250V,5*20mm1F1 181-911600-161Wire set #16AWG UL1007Black L=610mm1 PS-10/PS-12 PS-10/PS-12 19 Part NumberDescriptionQtyReference Designator 181-911655-135Wire set #16AWG UL1007Green L=610

35、mm 1 181-921600-000BLK Wire #16 UL1015T187 L:140mm1 181-921699-000WHT Wire #16 UL1015T187 L:160mm1 008-061215-000Gasket C430512x15 t=5mm CR 1 008-062002-002GasketPN:L-32 200 x20mm t=5mm PORON1 008-062002-012Gasket C4305200 x20mm t=2mm CR4305 1 008-063208-000Gasket C4305321x8 t=1mm CR 1 008-069304-00

36、0Gasket C430593x4 t=1mm CR 1 PS-10/PS-12 PS-10/PS-12 20 PS-12 Electrical Parts List 120V Part NumberDescriptionQtyReference Designator Resistors 020-000098-400 Carbon Film0R 1/8W 4C22-C24,31 020-220497-120 Carbon Film2K2 1/4W J 1R11 021-100401-120 MOF Resistor1K 1W J 1R103 021-220202-120 MOF Resisto

37、r22R 2W(S) J MB TYPE 15x81R10 021-240405-020 MOF Resistor2K4/5WS J 17x6 4R6,9,R7A,R9A 022-500003-020 KNP Resistor0R05 3WS J FK TYPE1R104 024-000098-120 SMD Resistor0R 1/8W J 0805 1R68 024-100298-120 SMD Resistor10R 1/8W J 0805 2R81,82 024-100398-120 SMD Resistor100R 1/8W J 0805 1R62 024-100498-120 S

38、MD Resistor1K 1/8W J 0805 8R79,83,92,95,96,105,108,65 024-100598-100 SMD Resistor10K 1/8W F 0805 2R20,21 024-100598-120 SMD Resistor10K 1/8W J 0805 8R2,17,19,37,54,58,63,71 024-100698-100 SMD Resistor100K 1/8W F 0805 4R22-25 024-100698-120 SMD Resistor100K 1/8W J 0805 2R3,112 024-110598-100 SMD Resi

39、stor11K 1/8W F 0805 1R98 024-137698-100 SMD Resistor137K 1/8W F 0805 1R32 024-150498-120 SMD Resistor1K5 1/8W J 0805 1R67 024-160798-120 SMD Resistor1M6 1/8W J 0805 1R121 024-174398-100 SMD Resistor174R 1/8W F 0805 1R6A 024-180598-100 SMD Resistor18K 1/8W F 0805 1R29 024-187698-100 SMD Resistor187K

40、1/8W F 0805 1R45 024-200598-120 SMD Resistor20K 1/8W J 0805 1R94 024-205598-100 SMD Resistor20K5 1/8W F 0805 1R35A 024-220398-120 SMD Resistor220R 1/8W J 0805 1R90 024-220498-121 SMD Resistor2K2 1/8W J 0805 3R1,87,61 024-220598-120 SMD Resistor22K 1/8W J 0805 1R118 024-220798-120 SMD Resistor2M2 1/8

41、W J 0805 1R80 024-237598-120 SMD Resistor23K7 1/8W F 0805 1R48 024-243498-100 SMD Resistor2K43 1/8W F 0805 1R36 024-270498-120 SMD Resistor2K7 1/8W J 0805 2R73,64 024-300398-120 SMD Resistor300R 1/8W J 0805 1R55 024-300598-120 SMD Resistor30K 1/8W J 0805 1R56 024-330498-120 SMD Resistor3K3 1/8W J 08

42、05 8R7,8,12-15,59,28 024-330598-120 SMD Resistor33K 1/8W J 0805 2R4,5 024-332498-100 SMD Resistor3K32 1/8W F 0805 2R26,27 024-348598-100 SMD Resistor34K8 1/8W F 0805 1R39 024-390498-120 SMD Resistor3K9 1/8W J 0805 2R93,38 024-390598-120 SMD Resistor39K 1/8W J 0805 1R77 024-430498-120 SMD Resistor4K3

43、 1/8W J 0805 1R78 024-453598-100 SMD Resistor45K3 1/8W F 0805 1R30 024-470298-120 SMD Resistor47R 1/8W J 0805 2R101,102 21 PS-10/PS-12 PS-10/PS-12 Part NumberDescriptionQtyReference Designator 024-470398-120 SMD Resistor470R 1/8W J 0805 3R76,99,100 024-470498-120 SMD Resistor4K7 1/8W J 0805 2R85,86

44、024-470598-120 SMD Resistor47K 1/8W J 0805 4R44,47,49,107 024-470698-120 SMD Resistor470K 1/8W J 0805 1R70 024-470798-120 SMD Resistor4M7 1/8W J 0805 1R60 024-510398-120 SMD Resistor510R 1/8W J 0805 1R57 024-560598-120 SMD Resistor56K 1/8W J 0805 1R122 024-562398-100 SMD Resistor562R 1/8W F 0805 1R5

45、A 024-620398-100 SMD Resistor620R 1/8W F 0805 2R16,18 024-680498-120 SMD Resistor6K8 1/8W J 0805 6R46,91,40-43 024-680598-120 SMD Resistor68K 1/8W J 0805 6R33,34A,31,50,52,66 024-768398-100 SMD Resistor768R 1/8W F 0805 1R2A 024-820598-120 SMD Resistor82K 1/8W J 0805 1R69 024-909598-100 SMD Resistor9

46、0K9 1/8W F 0805 1R4A 024-910398-100 SMD Resistor910R 1/8W F 0805 TPAING1R110 025-010300-000 ThermisterTSE-103 K L:50mm1 026-200595-269 VR FREQUENCYPN:RD163121R03D-20KBx2(EJ)1VR2 026-500495-252 VR 5KA LEVELPN:RK163111R52B-5KA (EJ)1VR1 Capacitors 031-100244-100 SMD Ceramic Capacitor0u01/50V K 0805 X7R

47、 7C33,45,51,66,67,5,10 031-100343-100 SMD Capacitor100pF/50V J 0805 NPO 3C16,36,58 031-100344-100 SMD Capacitor0u1/50V K 0805 X7R 12C11,42-44,46-49,52,54,55,60 031-100384-100RSMD Capacitor0u1/250V K 1206 X7R 2C3,7 031-220243-103 SMD Capacitor0u022/50V J 0805 X7R 1C40 031-220344-100 SMD Capacitor220p

48、F/50V J 0805 NPO 5C14,15,20,21,19 031-330444-300 SMD Capacitor3300pF/50V K 0805 X7R 1C34 031-470244-102 SMD Capacitor0u047/50V K 0805 X7R 2C62,59 031-560243-100 SMD Capacitor56pF/50V J 0805 NPO 2C57,61 031-560343-102 SMD Capacitor560pF/50V J 0805 NPO 1C56 032-100484-200 Mylar Capacitor1uF/250V K P:1

49、52C70,C70B 032-330363-200 Mylar Capacitor0u33/100V J P:10 (R)1C29 032-820244-200 Mylar Capacitor0u082/100V K (R)1C30 033-470464-270 NPE Capacitor4u7/100V K10 (R)1015 GNE1C73 033-680464-270 NPE Capacitor6u8/100V K10 (R)1020 GNE1C72 034-100525-300 Electrolytic Capacitor10uF/25V M (R)0511 P:5 1C35 034-100625-300 Electrolytic Capacitor100uF/25V M (R)6.3x11 P:51C64 034-220525-301 Electrolytic Capacitor22uF/25V M (R)5x11 P:5 5C4,9,41,50,53 034-220615-301 Electrolytic Capaci