Infinity-Intermezzo1_2-sub-sm 维修电路原理图.pdf

《Infinity-Intermezzo1_2-sub-sm 维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Infinity-Intermezzo1_2-sub-sm 维修电路原理图.pdf（42页珍藏版）》请在收音机爱好者资料库上搜索。

1、INTERMEZZO 1.2s SubwooferService ManualInfinity Systems, Inc250 Crossways Park Dr.Woodbury, New York 11797REV 4 5/2005RadioFans.CN 收音机爱 好者资料库INTERMEZZO 1.2s CONTENTS SPECIFICATIONS .3 DETAILED SPECIFICATIONS .4 CONTROLS and CONNECTIONS .6 OPERATION.10 MECHANICAL/PACKAGING PARTS LIST11 EXPLODED VIEW

2、of INTERMEZZO 1.2s 12 PACKAGING .13 TEST SET UP AND PROCEDURE 14 BULLETIN INF2001-04.15 IM 1.2s ADJUST BIAS PROCEDURE17 ELECTRICAL PARTS LIST .18 PRINTED CIRCUIT BOARD DIAGRAMS.27 INTEGRATED CIRCUIT DIAGRAMS 34 SCHEMATICS35 2RadioFans.CN 收音机爱 好者资料库INTERMEZZO 1.2s3SpecificationsFrequency Response:23H

3、z - 130Hz (3dB) 30Hz - 130Hz (1.5dB)Subwoofer Amplifier Output:850 watts continuous(In to 8?from 20Hz-100Hz with no more than 0.1% THD)2,600 watts peak2nd- and 3rd- Order Harmonic Distortion:28K ohms* Should measure 400 ohms Should measure 28K ohms* 22 Ohm 0.6W Resistors R506, R503 Infinity part# RM

4、0340 Should measure 22 ohms 1% IL120s IL60 422 Ohm 1/4 watt Resistors R505, R502 Infinity part# RM0397 Should measure 422 ohms 1% IRF740 MOSFETS Q4, Q5 Infinity part# QM0055 D to S or S to D G to S or S to G D to G or G to D Should measure 28K ohms* Should measure 400 ohms Should measure 28K ohms* 2

5、2 Ohm 0.6W Resistors R17, R20 Infinity part# RM0340 Should measure 22 ohms 1% IL50 IL100s 475 Ohm 1/4 watt Resistors R16, R19 Infinity part# RM0075 Should measure 475 ohms 1% IRF740 MOSFETS Q403,404,406,407 Infinity part# QM0055 D to S or S to D G to S or S to G D to G or G to D Should measure 28K o

6、hms* Should measure 400 ohms Should measure 28K ohms* 22 Ohm 0.6W Resistors R407,410,414,417 Infinity part# RM0340 Should measure 22 ohms 1% IM1.2s IM4.1t 365 Ohm 1/4 watt Resistor R408,411,415,418 Infinity part# RM0072 Should measure 365 ohms 1% INTERMEZZO 1.2s 15 8) Connect the subwoofer amplifier

7、 to an AC power source; turn the unit ON. Measure the DC voltage at the “CD ” wires; it should be 10-20 volts. 9) If it is 25 volts or greater, turn the amplifier OFF, disconnect from the power source, and replace: IL120S, IL60: Q504,Q507 IRF640 on the Power Supply PCB, Infinity part# QM0015. IL50,

8、IL100s: Q1 IRF540 on the Power Supply PCB, Infinity part# QM0020. 10) If the voltage is normal, turn the amplifier OFF, disconnect from the power source, and reconnect the “CD” leads. 11) Finish reassembling the amplifier, remount the heatsink, replace the amplifier in the cabinet and test the subwo

9、ofer. INTERMEZZO 1.2s 16IM 1.2s ADJUST BIAS PROCEDURE(Mandatory when any output MOSFET transistors Q305,310,320,321,306,307,311,312 are replaced)1. Amplifier should be unplugged and OFF.2. Remove Amp assembly from cabinet, following the instructions on Page 12.3. Identify the Linear board assembly (

10、PCB with the output transistors)4. Adjust RP301 and RP302 fully Counter Clockwise. See diagram below.5. Apply 120 VAC power to unit; turn power switch ON.6. Verify LED illuminates on the front gain control dial, unless you have disconnected the plug.7. Connect voltmeter set to DC millivolt range to

11、twin pins on terminal J303, on Linear board.8. Verify initial voltage is less then 0.1 mV.9. Adjust RP301 Clockwise until voltmeter reads 0.3 mV + the initial current from step #8.10. Adjust RP302 Clockwise until voltmeter now reads 0.6 mV + the initial current from step #8.11. Turn amplifier OFF. D

12、isconnect AC power to unit.12. Remove voltmeter from terminal J303.13. Replace amp assembly back into cabinet.17INTERMEZZO 1.2s Electrical Parts ListPart#Reference DesignatorQtyDescriptionLinear Amplifier/Regulator BoardSemiconductorsDS0001D301,D302,D303,D304,D305,24RECT, 100mA 75V SIGNAL 1N4148TD30

13、6, D307,D308,D309,D310,D311,D312, D313,D314,D315,D316,D317,D318, D319,D320,D321,D323,D325,D330DR0085D3241RECT, 8A 400V TO220AC MUR860QB0002Q314,Q315,Q3173TRANS, NPN 40V .6A TO92 2N4401QB0017Q303,Q308,Q322,Q3234TRANS, NPN 150V 0.6A 2N5551TRQB0018Q302,Q304,Q309,Q313,Q316,Q3246TRANS, PNP 150V 0.6A 2N54

14、01TRQB0033Q3191TRANS, NPN 250V 1A TO220 TIP47QM0015Q305,Q310,Q320,Q3214MOSFET, IRF640 TO220ABQM0032Q306,Q307,Q311,Q3124MOSFET, IRF9640 T0220ABQM0035-SQ3011JFET, J111 SELECTED TR ONLYUA0003U3061OPAMP, QUAD 14PIN DIL LM324NUA0009U3011OPAMP, QUAD 14P DIL TL074/084UF0013U3041FOTO, 6PIN MOC3012UP0004U307

15、1PWM, 8PIN DIL UC3842NUV0007U3031VREG, LINEAR TO220 LM7905CTUV0013U3021VREG, +5V 100MA TO220 LM7805CTDZ0018U3051ZENER, 2.5-37V SHUNT TL431CLPDZ0002Z3031ZENER, 500mW 12V 5% 1N5242BDZ0021Z301,Z3022ZENER, 500MW 15V 5% 1N5245BDZ0034Z3041ZENER, 500MW 10V 5% 1N5240BCapacitorsCC0020C335,C3662CAP, CA 470PF

16、100V 5%CC0040C313,C324,C3313CAP, CA 4700PF 100V 10%CC0059C311,C312,C322,C323,C372,C3736CAP, CA .1UF 100V 20%CC0065C337,C3672CAP, CA 2200P 100V 10%CC0079C3431CAP, C .1UF 50V 20% 5MMLSCC0082C350,C351,C370,C3714CAP, CA .1UF 50V 20%CC0087C332,C3382CAP, CA .01UF 100V 20%CC0108C307,C3172CAP, CA 22PF 50V 1

17、0CE0018C329,C3302CAP, E 100UF 25V 20% 5MMLSCE0098C301,C309,C310,C319,C3205CAP, E 22UF 50V 20% 5X11 5MMLSCE0103C3481CAP, E 100UF 35V 85DEG 5MMLSCE0106C305,C315,C3263CAP, E 22UF 35V BP 8X11 5MMLSCF0008C3421CAP, F 2200PF 100V 5% 5MMLSCF0035C306,C3162CAP, F .022UF 100V 5% 5MMLSCF0045C302,C3032CAP, F .1U

18、F 63DC 5% 5MMLSCC0032C3581CAP, C 2200PF 600V 10% BULKCC0017C3401CAP, C 330PF 100V 10% 5MMLS BUCC0021C360,C362,C3633CAP, C 470PF 1KV 10% BULKCC0072C3411CAP, CA 100PF 100V 10%CC0078C3441CAP, C .22UF 50V 10% .2LS BULKCC0095C345,C3472CAP, C 470P 100V 5CE0121C355,C3562CAP, E 470UF 200V 20% 30X2518INTERME

19、ZZO 1.2s Electrical Parts List (Cont.)Part#Reference DesignatorQtyDescriptionCF0146C3611CAP, F 6.8UF 250V 10% 27MMLSCC0059C3041CAP, CA .1UF 100V 20%ResistorsRC0004R3991RES, CF 1M0 1/4W 5%RC0006R3491RES, CF 10K 1/4W 5%RC0061R3501RES, CF 4K7 1/4W 5%RC0083R3031RES, CF 100K 1/4W 5%RC0087R323,R326,R327,R

20、339,R340,R3416RES, CF 330R 1/4W 5%RC0116R31071RES, CF 330K 1/4W 5%RC0127R31061RES, CF 30K 1/4W 5%RC0128R3761RES, CF 33K 1/4W 5%RC0135R3631RES, CF 150K 1/4W 5%RC0273R313,R3952RES, ZERO OHM 1/4WRM0001R344,R370,R371,R372,R31015RES, MF 1K00 1/4W 1%RM0002R377,R3802RES, MF 10K0 1/4W 1%RM0003R312,R3292RES,

21、 MF 15K0 1/4W 1%RM0011R352,R353,R354,R364,R3104,R31056RES, MF 100K 1/4W 1%RM0024R315,R317,R331,R3334RES, MF 2K21 1/4W 1%RM0031R320,R321,R336,R337,R3695RES, MF 3K32 1/4W 1%RM0035R31081RES, MF 4K75 1/4W 1%RM0037R3671RES, MF 51K1 1/4W 1%RM0039R3041RES, MF 5K11 1/4W 1%RM0043R319,R322,R335,R338,R3845RES,

22、 MF 6K81 1/4W 1%RM0065R3731RES, MF 200R 1/4W 1%RM0069R390,R3912RES, MF 274R 1/4W 1%RM0071R389,R3922RES, MF 332R 1/4W 1%RM0073R324,R3422RES, MF 392R 1/4W 1%RM0079R3112,R31132RES, MF 750R 1/4W 1%RM0082R3681RES, MF 1K21 1/4W 1%RM0083R3451RES, MF 1K50 1/4W 1%RM0084R31001RES, MF 1K65 1/4W 1%RM0089R3821RE

23、S, MF 2K43 1/4W 1%RM0093R316,R318,R332,R3344RES, MF 4K53 1/4W 1%RM0113R308,R309,R375,R3814RES, MF 20K0 1/4W 1%RM0114R3611RES, MF 22K1 1/4W 1%RM0118R3511RES, MF 210R 1/4W 1%RM0120R358,R360,R3623RES, MF 30K1 1/4W 1%RM0139R314,R3302RES, MF 267K 1/4W 1%RM0148R302,R3072RES, MF 6K34 1/4W 1%RM0165R3571RES,

24、 MF 24K9 1/4W 1%RM0180R311,R328,R355,R356,R359,R3796RES, MF 4K99 1/4W 1%RM0276R3651RES, MF 294K 1/4W 1RM0304R305,R3062RES, MF 7K87 1/4W 1%RM0336R3851RES, MF 47R 0.6W 1% FLAMEPROOFRM0339R396,R3972RES, MF 10R 0.6W 1% FLAMEPROOFRM0365R3861RES, MF 100R 1/4W 1% FLAMEPRFRX0072R31021RES, MO 100R 1W 5%RX007

25、4R325,R3432RES, MO 4K7 1W 5RX0097R3481RES, MO 3K9 2W 5%RC0005R3881RES, CF 10K 1/2W 5%19INTERMEZZO 1.2s Electrical Parts List (Cont.)Part#Reference DesignatorQtyDescriptionRC0229R31031RES, CF 200K 1/2W 5%RP0056RP301,RP3022POT, 5K 8MM HOR TOP ADJ/COVERRW0022R346,R347,R393,R3944RES, WW 0R1 2W 5%RC0006R

26、3101RES, CF 10K 1/4W 5%Miscellaneous480022FO3101SUB, #18B 6 1/4 STRIP/187X032480028FO3091SUB, #18R 6 1/4 STRIP/187X0324800841SUB, #18G 4 187X032/#6 RING540130L3021IND, CM CHOKE 150UH ELYTONEBF0007L3011BEAD, FERRITEJH0008J3021CNCTR, HEADER 5PIN .100CTRJH0016J3031CNCTR, HEADER 2PIN .100CTRJH0074J3011C

27、NCTR, HEADER 8PIN LOCKING .1CKS0017TH302,TH3032THERMISTOR, 100K 25C NTC BULKS0019TH3011THERMISTOR, PTH9L04BD22TS2F510MT0003FO3041TERM, FASTON MALE PCMT 250X032MT00052TERM, KWIKDISC .187 X.032 FEMA USED ON ONE END OF 480022 AND 48028MT0023FO301,FO302,FO308,FO3114TERM, FASTON MALE PCMT 187X032MT0036FO

28、3031TERM, FASTON MALE PCMT 205X032MS001712MISC, CERAMIC PLATE TO-220 Used on D324, Q305, Q306, Q307, Q310, Q311, Q312,Q319, Q320, Q321, U302, U303.81006612MET, HTSNK CLIP HPS SERIES Used onD324, Q305, Q306, Q307, Q310, Q311, Q312,Q319, Q320, Q321, U302, U303.HS00791SCREW, #6-32X1.25 FL SLOT NYL used

29、 onL302JN00031NUT, HEX NYLON #6-32 used on L302PCB, POWER SUPPLY BOARDSemiconductorsDR0086D403,D404,D4063RECT, 1A 600V ULTRAFAST MUR160DS0002D409,D4102RECT, 100MA 200V SIGNAL 1N3070DR0084D407,D4082RECT, 8A 600V ULTRAF MUR1660CTQM0055Q403,Q404,Q406,Q4074MOSFET, IRF740 TO220AB IR ONLYQB0014Q4011TRANS,

30、 PNP TO92 MPSA92TRDD0003Q4021RECT, 1A2 60V DIACDZ0021Z401,Z402,Z403,Z404,Z405,Z406,Z407, Z4088ZENER, 500MW 15V 5% 1N5245BResistorsRC0082R4031RES, CF 100K 1/2W 5%RC0138R4221RES, CF 200K 1/4W 5%RM0001R4011RES, MF 1K00 1/4W 1%RM0012R4051RES, MF 100R 1/4W 1%RM0071R406, R409, R413, R4164RES, MF 332R 1/4W

31、 1%RM0072R408, R411, R415, R4184RES, MF 365R 1/4W 1%RM0198R4021RES, MF 205K 1/4W 1%RM0340R407,R410,R414,R417,R419,R420,R425, R4268RES, MF 22R 1/4W 1% FLAMEPROOF20INTERMEZZO 1.2s Electrical Parts List (Cont.)Part#Reference DesignatorQtyDescriptionRX0046R4211RES, MO 47K 1W 5%CapacitorsCC0040C4091CAP,

32、CA 4700PF 100V 10%CC0087C4211CAP, CA .01UF 100V 20%CE0013C415,C416,C4183CAP, E 47UF 50V 20% 5MMLSCF0093C406,C408,C412,C4144CAP, F 4700PF 100V 5% 5MMLSCE0040C401,C402,C403,C422,C423,C4246CAP, E 680UF 200V 30X35 85DEGCF0050C426, C427, C430, C4314CAP, F .1UF 250V 10% 10MMLSCF0143C4281CAP, FY1 4700PF 25

33、0V 20%DNIC428, C4292Miscellaneous500113T403,T4042XFMR, POWER 1000W YT ETD44 3F3JH0008J4011CNCTR, HEADER 5PIN .100CTRKS0021TH4011SURGISTOR, 4R 8A 70J SL154R008MT0023FO401,FO402,FO403,FO4044TERM, FASTON MALE PCMT 187X0328100666MET, HTSNK CLIP HPS SERIES USED OND407,D408,Q403,Q404,Q406,Q4078100961MET,

34、HTSNK PRIMARY LF SERIES USEDON Q403,Q404,Q406,Q4078100991MET, HTSNK DIODE LF SERIES USED OND407,D408HN00064NUT, HEX KEP #6-32 ZNPUSED ON THE PRIMARY AND DIODE HEATSINKSHS00604SCREW, #6-32X3/8 PAN PHIL BLK USED ONTHE PRIMARY AND DIODE HEATSINKSPCB, EMI Filter BoardSemiconductorsDR0038D502,D503,D504,D

35、5054RECT, 1A 400V GENERAL 1N4002DS0001D5121RECT, 100mA 75V SIGNAL 1N4148TQB0002Q5011TRANS, NPN 40V .6A TO92 2N4401DB0006D5011RECT, 8A 400V BRIDGEUV0007U5021VREG, LINEAR TO220 LM7905CTUV0013U5011VREG, +5V 100MA TO220 LM7805CTDZ0012Z502,Z5032ZENER, 500MW 3.9V 5% 1N5228BResistorsRC0004R5011RES, CF 1M0

36、1/4W 5%RX0083R5031RES, MO 150R 3W 5CapacitorsCC0059C5071CAP, CA .1UF 100V 20%CE0003C505,C5062CAP, E 2.2UF 50V 20% 105CCE0103C503,C5042CAP,E 100UF 35V 85DEGCF0057C501,C5022CAP,FX.22UF 250V 10%Miscellaneous21INTERMEZZO 1.2s Electrical Parts List (Cont.)Part#Reference DesignatorQtyDescription4800901SUB

37、, #18R 9 187X032/1/4STRP4800971SUB, #18B 9 187X032/1/4STRP540124L5011IND, CHOKE CM500103T5011XFMR, 60HZ 24V 1.1VA8100881MET, HTSNK 1X2 BRIDGE For D501JH0008J5021CNCTR, HEADER 5PIN .100CTRKV0001Z5011VARISTOR, 275V 100J .6WMT0023FO503,F05042TERM,FASTON MALE PCMIT 187X032SR0038SW5021RELAY, SPST TV-5 5A

38、MP 24VHN00061NUT, KEP 1/4AF 6-32 ZNPHS00091SCREW, 6-32 1/2 100 PHIL ZNPPCB, Input/Feature BoardSemiconductorsUA0003U1041OPAMP, QUAD 14PIN DIL LM324NUA0009U101,U102,U1033OPAMP, QUAD 14P DIL TL074/084UF0012U1001FOTO, 6PIN 4N35DR0038D113,D114,D115,D116,D117,D1186RECT, 1A 400V GENERAL 1N4002DS0001D100,

39、D101, D102, D103, D104, D105, D106,19RECT, 100mA 75V SIGNAL 1N4148TD107, D108, D109, D110, D111, D112, D119,D120, D121,D122, D123, D124DS0001D119, D120, D123, D124, D125, D1266RECT, 100mA 75V SIGNAL 1N4148TQB0017Q1021TRANS, NPN 150V 0.6A 2N5551QM0035-SQ100,Q101,Q1033JFET, J111 SELECTED TR ONLYDZ0013

40、Z1001ZENER, 500MW 5.6V 5% 1N5232BCapacitorsCC0024C127,C1292CAP, CA 1000PF 100V 10%CC0072C125,C1302CAP, CA 100PF 100V 10%CC0082C122, C1262CAP, CA .1UF 50V 20%CE0003C123,C1242CAP, E 2.2UF 50V 20% 105CCE0098C118, C119, C131, C1324CAP, E 22UF 50V 20% 5X11 .2LSCE0103C1281CAP, E 100UF 35V 85DEGCE0116C103,

41、C1042CAP, E 2.2UF 50V BIPOLAR 6X11CF0128C108, C1102CAP, F .033UF 100V 5% 5MMLSCF0045C111,C1122CAP, F .1UF 63DC 5% 5MMLSCF0088C114,C115,C116,C1174CAP, F .01UF 100V 5% 5MMLSCF0092C120,C1212CAP, F 1000P 63V 5% .2LSCF0099C1361CAP, F 0.68UF 63V 5% 5MMLSCF0112C102, C105, C1353CAP, F 100PF 63V 5% 5MMLSCF01

42、25C107, C1092CAP, F .068UF 100V 5% 5MMLSCE0138C100,C1011CAP, E 330UF 100V BP 18X35dniC106, C113, C131, C133, C1345(Do Not Insert)ResistorsRC0003R1761RES, CF 1K0 1/4W 5%RC0004R162,R1632RES, CF 1M0 1/4W 5%RC0006R153, R154, R155, R156, R157, 12RES, CF 10K 1/4W 5%R160, R161, R169, R172, R174, R175, R177

43、RC0037R159,R1642RES, CF 2K0 1/4W 5%22INTERMEZZO 1.2s RC0039R165,R170,R1733RES, CF 2K2 1/4W 5%RC0083R149,R150,R1583RES, CF 100K 1/4W 5%RC0111R143,R1482RES, CF 680R 1/4W 5%RC0115R1671RES, CF 47K 1/4W 5%RC0135R1681RES, CF 150K 1/4W 5%RC0273R126,R130,R135,R141,R1465RES, ZERO OHM 1/4WRC0277R1711RES, CF 5

44、M6 1/4W 5%RC0281R1661RES, CF 510K 1/4W 5%RM0001R151,R1522RES, MF 1K00 1/4W 1%RM0002R110,R111,R1123RES, MF 10K0 1/4W 1%RM0011R104, R105, R106, R107, R1165RES, MF 100K 1/4W 1%RM0019R1151RES, MF 1K30 1/4W 1%RM0075R1371RES, MF 475R 1/4W 1%RM0091R108,R1092RES, MF 3K65 1/4W 1%RM0106R1131RES, MF 14K0 1/4W

45、1%RM0113R118,R119,R1203RES, MF 20K0 1/4W 1%RM0115R1141RES, MF 23K7 1/4W 1%RM0142R139,R1442RES, MF 287K 1/4W 1%RM0195R1331RES, MF 187K 1/4W 1%RM0110R122,R124,R127,R1284RES, MF 17K4 1/4W 1%RM0269R1361RES, MF 93K1 1/4W 1%RM0290R142,R1472RES, MF 143K 1/4W 1RM0351R1171RES, MF 9K53 1/4W 1%RP0105R1231POT,

46、B50K QUAD KNURL SHAFTRM0403R101, R1032RES, MF 54K9 1/4W 1%RC0192R100, R1022RES, CF 2K0 1/2W 5%dniR121, R125, R129, R131,8(Do Not Insert)R134, R138, R140, R145MiscellaneousJC0052J1011CNCTR, RCA QUAD JACKJC0064J1051DC POWER JACK 2MM DIAJC0176J10018X BINDING POSTS GOLD KNURLJH0008J1021CNCTR, HEADER 5PI

47、N .100CTRJH0074J103,J1042CNCTR, HEADER 8PIN LOCKING .1CSR00062SWITCH, CAP FOR SR0005 USED ON S101 &S102SR0017S101,S1022SWITCH, 2 POLE 2PDTSR0041S1001DPST PUSH SWITCH TV-8SR00421SWITCH CAP, 8.8X10.5MM CYL BLKPCB, RABOSSemiconductorsUA0009U2001OPAMP, QUAD 14P DIL TL074/084UA0010U2011OPAMP, DUAL 8PIN D

48、IL TL082QB0017Q2041TRANS, NPN 150V 0.6A 2N5551TRQM0035-SQ201,Q202,Q2053JFET, J111 SELECTED TR ONLYQB0017Q2001TRANS, NPN 150V 0.6A 2N5551Electrical Parts List (Cont.)Part#Reference DesignatorQtyDescription23INTERMEZZO 1.2s Electrical Parts List (Cont.)Part#Reference DesignatorQtyDescriptionResistorsR

49、C0148R2101RES, CF 10M 1/4W 5%RM0001R207,R2082RES, MF 1K00 1/4W 1%RM0002R200,R201,R214,R216,R220,10RES, MF 10K0 1/4W 1%R225,R228, R229,R230, R233RM0003R219, R2242RES, MF 15K0 1/4W 1%RM0012R2151RES, MF 100R 1/4W 1%RM0024R2031RES, MF 2K21 1/4W 1%RM0031R2311RES, MF 3K32 1/4W 1%RM0076R2041RES, MF 562R 1/

50、4W 1%RM0078R2091RES, MF 680R 1/4W 1%RM0080R217,R2232RES, MF 825R 1/4W 1%RM0091R2111RES, MF 3K65 1/4W 1%RM0260R2321RES, MF 1M0 1/4W 1%RM0271R2061RES, MF 110K 1/4W 1%RM0281R222,R2272RES, MF 6K04 1/4W 1RM0315R2121RES, MF 2K67 1/4W 1%RM0369R221,R2262RES, MF 340R 1/4W 1%RM0370R2021RES, MF 9K31 1/4W 1%RM0