Infinity-PS8-sub-sm维修电路原理图.pdf

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1、 PS-8 PS-8 PS Series SERVICE MANUAL Infinity Systems Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 Rev2 10/2006 RadioFans.CN 收音机爱 好者资料库 CONTENTS BASIC SPECIFICATIONS . . . . . . . . . . . . . . . . 1 DETAILED SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 CONTR

2、OLS TIGHTEN TERMINALS 1. 2. BLACK = NO STRIPE = STRIPE = + RED = + This figure shows how to connect bare wires to the terminals. RECEIVER/AMPLIFIER Front Speaker Output + HIGH LEVEL INPUT L R PS-8 PS-8 4 PS-8 OPERATION Power On Plug your subwoofersAC cord into a wall outlet.Do not use the outlets on

3、 the 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 sound-track at a moderate level. Auto On/Standby With the Power Switch in the ON positi

4、on,the LED on the front 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 approximately 10 minutes when no signal is dete

5、cted 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 Co

6、ntrol up to the “5”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 confir

7、med 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 comfortable level. Adjust the Subwoofer-Level Control until you obtain a pleasing blend of bass.Bass respons

8、e 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 not entirely true.A subwoofer is the

9、re 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

10、 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.Adjust

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

12、 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 settin

13、g,between 120Hz and 150Hz. NOTE: This control will have no effect if the LFE Input is used. 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. PS-8 PS-8 5 Ref# Descripti

14、on Part Number Qty 1 Grille 244-080-0025 1 2 Screw (Trim Ring) 352-DM04525D597 6 3 Woofer Trim Ring 213-080-00488 1 4 Screw (Woofer) 352-FM04014D609 8 5 8” Woofer 20PR10DAG-FW04 1 6 PS-8 Cabinet Not for sale 1 7 PS-8 Amplifier Not for sale 1 8 Screw (Amplifier) 352-AM04020D210 10 9 Port Tube 249-HIP

15、S-01003 2 10 Foot Pad 320-RUB-00199 4 11 Screw (Foot) 352-CM04025D604 4 12 Feet (Main) 320-ABS-00195 4 13 Logo 316-ABS-00532 1 PS-8 6 PS-8 PS-8 7 PS-8 8 PS-8 Test Set Up and Procedure SYSTEM AURAL SWEEP TEST Equipment needed: Function/signal generator/sweep generator Integrated Amplifier Multimeter

16、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

17、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 75mV, 50 Hz. 4. Plug in UUT; turn the power switch ON. Turn LEVEL control full Clockwise (Max). 5. LED should now be Green; immediate bass response

18、 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 High Level input terminals on UUT. Cables should be connected to an integrated amplifier fed by the

19、 signal generator. 8. Turn on generator and adjust so that speaker level input at the amplifier is 1.5V, 50 Hz. Turn LEVEL control full Clockwise (Max). 9. Green LED should light; immediate bass response should be heard and felt from the port tube opening. Sweep Function 1. Follow steps 7-10 above,

20、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 - wir

21、e clips. 2. Check DC resistance of woofer; it should be 4.5 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 and adjust so that speaker level output is 5.0V. 4. Sweep generator from 20

22、Hz to 1kHz. Listen to driver for any rubbing, buzzing, or other unusual noises. PS-8 PS-8 9 PS-8 Electrical Parts List (See addendum for serial # ME0683-16317 and above) Part number DescriptionReference DesignatorQty Resistors 110- 14122j26 Resistor 1.2K 1/4W 5% CF 26mm R2701 110- 10821jk2 Resistor

23、820 1W 5% 10mm R1321 110- 122r2j15 Resistor 2.2 1/2W 5% 15mm R1271 113- 50r10j10 Cement resistor 0.1 5W 5%R121,1222 114- 03302m0 Semi- fixed resistor 3K 0.3W 20% R1381 115- h203b208Variable resistor B20K FREQUENCYVR2021 115- h503a104 Variable resistor D16 50K/1 A LEVELVR2011 110- 20331jk2 Resistor 3

24、30 2W 5% 5mm R1461 110- 12472j52 Resistor 4.7K 1/2W 5% CF 52mm R201,R2022 110- 14681j26 Resistor 680 1/4W 5% CF 26mmR148,R1512 110- 16101j26 Resistor 100 1/6W 5% CF 26mm R1201 110- 16102j26 Resistor 1K 1/6W 5% CF 26mm R124,213,214,215,2545 110- 16103j26 Resistor 10K 1/6W 5% CF 26mm R134,209,212,216,

25、217,220,221,222,225,226,228,232,235,240,215 110- 16104j26 Resistor 100K 1/6W 5% CF 26mm R231,2662 110- 16105j26 Resistor 1M 1/6W 5% CF 26mm R143,259,2 110- 16123j26 Resistor12K 1/6W 5% CF 26mm R135,139,2273 110- 16151j26 Resistor 150 1/6W 5% CF 26mm R2531 110- 16152j26 Resistor 1.5K 1/6W 5% CF 26mm

26、R103,123,136,137,141,1426 110- 16153j26 Resistor 15K 1/6W 5% CF 26mm R118,145,152,1544 110- 16154j26Resistor 150K 1/6W 5% CF 26mm R131,203,204,205,206,2526 110- 16181j26 Resistor 180 1/6W 5% CF 26mm R111,1142 110- 16183j26 Resistor 18K 1/6W 5% CF 26mm R2621 110- 16205j26 Resistor 2M 1/6W 5% CF 26mm

27、R2571 110- 16223j26 Resistor 22K 1/6W 5% CF 26mm R128,129,133,238,247,250,255,2338 110- 16273j26 Resistor 27K 1/6W 5% CF 26mm R2371 110- 16332j26 Resistor 3.3K 1/6W 5% CF 26mm R106,R107,1443 110- 16392j26 Resistor 3.9K 1/6W 5% CF 26mm R105,1082 110- 16393j26 Resistor 39K 1/6W 5% CF 26mm R1261 110- 1

28、6470j26Resistor 47 1/6W 5% CF 26mm R112,113,115,1164 110- 16471j26 Resistor 470 1/6W 5% CF 26mm R1401 110- 16472j26 Resistor 4.7K 1/6W 5% CF 26mm R110,125,130,200,207,258,2607 110- 16473j26 Resistor 47K 1/6W 5% CF 26mm R101,219,2513 110- 16512j26 Resistor 5.1K 1/6W 5% CF 26mm R210,211,229,2304 110-

29、16563j26Resistor 56K 1/6W 5% CF 26mm R1041 110- 14472j26Resistor 4.7K 1/4W 5% CF 26mm R147,1502 110- 16682j26 Resistor 6.8K 1/6W 5% CF 26mmR1091 110- 16333j26 Resistor 33K 1/6W 5% CF 26mm R2491 110- 16182j26 Resistor 1.8K 1/6W 5% CF 26mm R1531 110- 16103j26 Resistor 10K 1/6W 5% CF 26mm R301,303,304,

30、308,309,314,340,3448 110- 16223j26 Resistor 22K 1/6W 5% CF 26mm R310,3122 110- 16273j26Resistor 27K 1/6W 5% CF 26mm R3411 110- 16472j26 Resistor 4.7K 1/6W 5% CF 26mm R342,432 110- 16474j26 Resisto 470K 1/6W 5% CF 26mm R3071 110- 16751j26 Resistor 750 1/6W 5% CF 26mmR311,3132 110- 20331jk3 Resistor 3

31、30 2W 5% R1491 110- 16183j26Resistor 18K 1/6W 5% CF 26mm R3021 110- 16560j26 Resistor 56 1/6W 5% CF 26mm R1171 110- 16562j26 Resistor 5.6K 1/6W 5% CF 26mmR224,2342 116- 164531f26 Resistor 4.53K 1/6W 1% MF26mm R2231 PS-8 PS-8 (serial # ME0683-16316 and below) 10 Part number DescriptionReference Desig

32、natorQty Semiconductors 192- 027c1815gr Transistor 2SC1815GR NPNQ102,111,112,113,118,201,206,2078 192- 028a1015gr Transistor 2SA1015GR PNPQ114,1162 192- 1672n5551 Transistor 2N5551 NPN Q103,1092 192- 1682n5401 Transistor 2N5401 PNPQ104,1102 197- 131n4148 Diode 1N4148 26mm D101,103,105,1084 199- 1500

33、0335 Zener diode 3.3V 1/2W 52mm D102,2132 199- 15000625 Zener diode 6.2V 1/2W 52mm D106,1072 199- 15001605 Zener diode 16V 1/2W 52mm D1091 192- 027c1815gr Transistor 2SC1815GR NPNQ301,3022 197- 131n4148 Diode 1N4148 26mm D301,3022 190- 16t1074cnI.C TL074CN ST QUAD OP- AMPU3011 190- 06m4558d I.C. OPA

34、 4558D DUAL OP- AMP U101,2032 190- 16tl074cnI.C TL074CN ST QUAD OP- AMP U201,2022 192- 991d669a Transistor HI- SINCERITY HSD669A NPNQ1061 192- 992b649t Transistor HSB649T PNP Q1051 192- 021c1815gr Transistor 2SC1815GR NPN Q101,1152 192- 021tip35c Transistor TIP35C NPN Q1071 192- 022tip36c Transistor

35、 TIP36C PNP Q1081 192- 201d882y Transistor KSD882Y NPN Q1171 192- 202b772y Transistor KSB772Y PNP Q1191 197- 00kbl405 Bridge rectifier 4A 500V KBL405 D1101 197- 101n4002 Diode 1N4002 D1041 197- 131n4148 Diode 1N4148 26mm D117,1182 197- 131n4148Diode 1N4148 26mm D1161 195- 10204hgwLED 204HGW 3? 1 190

36、- 16tl074cnI.C TL074CN ST QUAD OP- AMP U201,2022 Capacitors 132- 104kb70CAPACITOR 0.1uF 275v+/- 10% POWER SW1 129- a474j633 Plastic cap. 0.47U 63V 5% MSC C221,2222 135- 4688m50 Electronic cap. 6800U/50V C121,1222 135- 3107m16Electronic cap. 100uF 16V 20% C1101 132- 223ja03Mylar capacitor 0.022uF 100

37、V 5% C123,1272 130- 2b102k503Disc capacitor 1000P 50V 10% C1161 130- 2b221k503Disc capacitor 220P 50V 10% C204,205,207,208,210,211,212,214,220,230,200,24912 130- 2f104z503 Disc capacitor 0.1U 50V +80/- 20%C108,113,115,119,232,242,244,245,246,252,25411 130- 3f473m503 Disc capacitor 0.047U 50V 20% C10

38、61 130- sl470k503 Disc capacitor 47P 50V 10% C2291 132- 103j503 Mylar capacitor 0.01U 50V 5% C223,2242 132- 104j503Mylar capacitor 0.1U 50V 5% C107,215,2173 132- 223ja03 Mylar capacitor 0.022uF 100V 5% C124,125,126,1284 135- 3105m50 Electronic cap. 1U 50V 20% C105,112,2283 135- 3106m50 Electronic ca

39、p. 10uF 50V 20% C201,202,206,213,219,231,241,243,251,25310 135- 3107m16 Electronic cap. 100uF 16V 20% C109,117,120,233,2345 135- 3226m50Electronic cap. 22U 50V 20% C114,118,2253 135- 3227m10 Electronic cap. 220U 10V 20% C129,1302 135- 3227m16 Electronic cap. 220U 16V 20% C1111 135- 3476m25Electronic

40、 cap. 47U 25V 20% C1031 129- a224j633 Plastic cap. 0.22uF 63V 5% MSC C2181 129- a564j633 Plastic cap. 0.56uF 63V 5% C2161 130- 2f104z503 Disc capcitor 0.1U 50V +80/- 20% C305,3062 132- 103j503 Mylar capcitor 0.01U 50V 5% C302,3032 135- 3226m50 Electronic cap. 22U 50V 20% C301,3402 135- 3476m25 Elect

41、ronic cap. 47U 25V 20% C3041 PS-8 PS-8 (serial # ME0683-16316 and below) 11 Part number DescriptionReference DesignatorQty Miscellaneous 193- 3m2520Piezo TO- 3P 25x20mm Q107,1082 162- 50259201 WIRE ASSY 2 PIN 250mm red/whiteLED11 351- AM03014A094Screw M3*14 352- AM03008D040Screw ?3*8 361- FE- 00051T

42、ransistor 14.2*8.0*5.2t=1.6mm 323- AL- 00020 HEAT SINK 65*32*31 361- NYL- 00054 Transistor SW06002 174- 2psz406g1 JACK S- 8071 JK2031 162- 80098201Single line wire 90mm grey 28AWGSW3011 162- 50289001Cable assy 280mm AWG26WHT 175- 9f40hr2Contactor 40pin pitch=2.54mmP3011 171- udhss124d Relay 5A 24V U

43、DH- SS124D RY1011 174- 0300390g JACK JE0300390G JK2021 175- 1c07v01 Contactor 7PIN PITCH=2.5mm P1011 175- 1d02v01 Contactor 2PIN PITCH=3.96mm P1021 175- 1d03v01 Contactor 3 PIN PITCH=3.96mmJST- VH P1031 180- tms7210v SWITCH SLIDE 6PIN MS7210V SW2011 150- e8604107TRANSFORMER EI- 86 60Hz 120v 152- u60

44、2015PWR CABLE/W/ POLARITY SVT FT- 26FT 154- u25006t0FUSE 2.5A 250V 20MMFS1011 155- 520020FUSE HOLDER R3- 11 162- 10082007WIRE RED 18AWG 80MM 8MM#1015 162- 50652003WRIE 650MM RED=205# 0.5TBLK=110# 0.5t 176- wjcelCLOSE TERMINAL CE- 1 180- prf1003SPOWER SWITCHER ROCK RF- 1003- BB2- OHA SW1011 350- EM04

45、012D0244?*12 SCREW 351- HM04016A218M4*16 SCREW 351- AM03008A079M3*8 SCREW 352- AM03010D065?3*10 SCREW P 352- AM03008D040?3*8 SCREW B 354- GM04002M4 SCREW CAP WITH DENT GASKET 302- AL- 00406AL BACK BOARD 300*200*2.5t 362- FE- 00013PCB BRACKET L TYPE T=1.6MM 323- AL- 00106HEAT SINK 117.5*71.5*25 POLAR

46、ITY 311- ABS- 00028PLASTIC KNOB 46077- W, SOFT PVC 306- ABS- 00177BACK BOARD 198*298*102MM 333- EVA- 00783GASKET W 198*12*2.0T 333- EVA- 00807GASKET L 274*12*2.0T 333- EVA- 00826GASKET W 274*12*1.0T 333- EVA- 00835GASKET L 274*12*1.0T 320- RUB- 00033RUBBER GASKET 25*21*4T 123- 14j70dFERRITE CORE U-

47、16.3*8.2*13(J70)+CASE 337- CU- 00101BRASS BAR 65L*50W 333- EVA- 00761GASKET 18*9*2T ADDENDUM: Changes to serial # ME0683-16317 and above Comment included 135- 3225m50Electronic cap. 2.2uF 50VC219 (Change in Value)1 110- 16562j26 Resistor 11.3k 1%R224 (Now attached from U301 pin 10 or 13 to GRND)1 11

48、6- 164991f26Resistor 4.99K 1%R234 (Change in Value)1 110- 16333j26Resistor 33KR305 (New - not previously installed)1 PS-8 PS-8 (serial # ME0683-16316 and below) 12 PS-8 PS-8 (serial # ME0683-16316 and below) 13 PS-8 PS-8 (serial # ME0683-16316 and below) 14 PS-8 PS-8 (serial # ME0683-16317 and above) 15 PS-8 PS-8 (serial # ME0683-16317 and above) 16 17 PS-8 PS-8 (serial # ME0683-16316 and below) 18 PS-8 PS-8 (serial # ME0683-163