Infinity-Intermezzo1.2-ps-sm维修电路原理图.pdf

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1、INTERMEZZO 1.2s Subwoofer Service Manual Infinity Systems, Inc 250 Crossways Park Dr. Woodbury, New York 11797 REV 4 5/2005 RadioFans.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 EXPLODE

2、D VIEW 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 2 RadioFans.CN 收音机爱 好者资料库 INTERMEZZO 1.2s 3 Specifications Frequency

3、Response:23Hz - 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 peak 2nd- and 3rd- Order Harmonic Distortion:28K ohms* Should measure 400 ohms Should measure 28K ohms* 22 Ohm 0.6W Resistors R506, R503 I

4、nfinity part# RM0340 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 mea

5、sure 28K ohms* 22 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 Shou

6、ld measure 28K ohms* 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 sub

7、woofer amplifier 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

8、# QM0015. IL50, 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 an

9、d test the subwoofer. INTERMEZZO 1.2s 16 IM 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 Li

10、near board assembly (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

11、to DC millivolt range to 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

12、#8. 11. Turn amplifier OFF. Disconnect AC power to unit. 12. Remove voltmeter from terminal J303. 13. Replace amp assembly back into cabinet. 17 INTERMEZZO 1.2s Electrical Parts List Part#Reference DesignatorQtyDescription Linear Amplifier/Regulator Board Semiconductors DS0001D301,D302,D303,D304,D30

13、5,24RECT, 100mA 75V SIGNAL 1N4148T D306, D307,D308,D309,D310, D311,D312, D313,D314,D315, D316,D317,D318, D319,D320, D321,D323,D325,D330 DR0085D3241RECT, 8A 400V TO220AC MUR860 QB0002Q314,Q315,Q3173TRANS, NPN 40V .6A TO92 2N4401 QB0017Q303,Q308,Q322,Q3234TRANS, NPN 150V 0.6A 2N5551TR QB0018Q302,Q304,

14、Q309,Q313,Q316,Q3246TRANS, PNP 150V 0.6A 2N5401TR QB0033Q3191TRANS, NPN 250V 1A TO220 TIP47 QM0015Q305,Q310,Q320,Q3214MOSFET, IRF640 TO220AB QM0032Q306,Q307,Q311,Q3124MOSFET, IRF9640 T0220AB QM0035-SQ3011JFET, J111 SELECTED TR ONLY UA0003U3061OPAMP, QUAD 14PIN DIL LM324N UA0009U3011OPAMP, QUAD 14P D

15、IL TL074/084 UF0013U3041FOTO, 6PIN MOC3012 UP0004U3071PWM, 8PIN DIL UC3842N UV0007U3031VREG, LINEAR TO220 LM7905CT UV0013U3021VREG, +5V 100MA TO220 LM7805CT DZ0018U3051ZENER, 2.5-37V SHUNT TL431CLP DZ0002Z3031ZENER, 500mW 12V 5% 1N5242B DZ0021Z301,Z3022ZENER, 500MW 15V 5% 1N5245B DZ0034Z3041ZENER, 5

16、00MW 10V 5% 1N5240B Capacitors CC0020C335,C3662CAP, CA 470PF 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% 5MMLS CC0082C350,C351,C370,C3714CAP, CA .1UF 50V 20% CC008

17、7C332,C3382CAP, CA .01UF 100V 20% CC0108C307,C3172CAP, CA 22PF 50V 10 CE0018C329,C3302CAP, E 100UF 25V 20% 5MMLS CE0098C301,C309,C310,C319,C3205CAP, E 22UF 50V 20% 5X11 5MMLS CE0103C3481CAP, E 100UF 35V 85DEG 5MMLS CE0106C305,C315,C3263CAP, E 22UF 35V BP 8X11 5MMLS CF0008C3421CAP, F 2200PF 100V 5% 5

18、MMLS CF0035C306,C3162CAP, F .022UF 100V 5% 5MMLS CF0045C302,C3032CAP, F .1UF 63DC 5% 5MMLS CC0032C3581CAP, C 2200PF 600V 10% BULK CC0017C3401CAP, C 330PF 100V 10% 5MMLS BU CC0021C360,C362,C3633CAP, C 470PF 1KV 10% BULK CC0072C3411CAP, CA 100PF 100V 10% CC0078C3441CAP, C .22UF 50V 10% .2LS BULK CC009

19、5C345,C3472CAP, C 470P 100V 5 CE0121C355,C3562CAP, E 470UF 200V 20% 30X25 18 INTERMEZZO 1.2s Electrical Parts List (Cont.) Part#Reference DesignatorQtyDescription CF0146C3611CAP, F 6.8UF 250V 10% 27MMLS CC0059C3041CAP, CA .1UF 100V 20% Resistors RC0004R3991RES, CF 1M0 1/4W 5% RC0006R3491RES, CF 10K

20、1/4W 5% RC0061R3501RES, CF 4K7 1/4W 5% RC0083R3031RES, CF 100K 1/4W 5% RC0087R323,R326,R327,R339,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 1/4W RM0001R34

21、4,R370,R371,R372,R31015RES, MF 1K00 1/4W 1% RM0002R377,R3802RES, MF 10K0 1/4W 1% RM0003R312,R3292RES, 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

22、 1/4W 1% RM0037R3671RES, MF 51K1 1/4W 1% RM0039R3041RES, MF 5K11 1/4W 1% RM0043R319,R322,R335,R338,R3845RES, 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

23、/4W 1% RM0082R3681RES, MF 1K21 1/4W 1% RM0083R3451RES, MF 1K50 1/4W 1% RM0084R31001RES, MF 1K65 1/4W 1% RM0089R3821RES, 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% RM0120

24、R358,R360,R3623RES, MF 30K1 1/4W 1% RM0139R314,R3302RES, MF 267K 1/4W 1% RM0148R302,R3072RES, MF 6K34 1/4W 1% RM0165R3571RES, MF 24K9 1/4W 1% RM0180R311,R328,R355,R356,R359,R3796RES, MF 4K99 1/4W 1% RM0276R3651RES, MF 294K 1/4W 1 RM0304R305,R3062RES, MF 7K87 1/4W 1% RM0336R3851RES, MF 47R 0.6W 1% FL

25、AMEPROOF RM0339R396,R3972RES, MF 10R 0.6W 1% FLAMEPROOF RM0365R3861RES, MF 100R 1/4W 1% FLAMEPRF RX0072R31021RES, MO 100R 1W 5% RX0074R325,R3432RES, MO 4K7 1W 5 RX0097R3481RES, MO 3K9 2W 5% RC0005R3881RES, CF 10K 1/2W 5% 19 INTERMEZZO 1.2s Electrical Parts List (Cont.) Part#Reference DesignatorQtyDe

26、scription RC0229R31031RES, CF 200K 1/2W 5% RP0056RP301,RP3022POT, 5K 8MM HOR TOP ADJ/COVER RW0022R346,R347,R393,R3944RES, WW 0R1 2W 5% RC0006R3101RES, CF 10K 1/4W 5% Miscellaneous 480022FO3101SUB, #18B 6 1/4 STRIP/187X032 480028FO3091SUB, #18R 6 1/4 STRIP/187X032 4800841SUB, #18G 4 187X032/#6 RING 5

27、40130L3021IND, CM CHOKE 150UH ELYTONE BF0007L3011BEAD, FERRITE JH0008J3021CNCTR, HEADER 5PIN .100CTR JH0016J3031CNCTR, HEADER 2PIN .100CTR JH0074J3011CNCTR, HEADER 8PIN LOCKING .1C KS0017TH302,TH3032THERMISTOR, 100K 25C NTC BUL KS0019TH3011THERMISTOR, PTH9L04BD22TS2F510 MT0003FO3041TERM, FASTON MALE

28、 PCMT 250X032 MT00052TERM, KWIKDISC .187 X.032 FEMA USED ON ONE END OF 480022 AND 48028 MT0023FO301,FO302,FO308,FO3114TERM, FASTON MALE PCMT 187X032 MT0036FO3031TERM, FASTON MALE PCMT 205X032 MS001712MISC, CERAMIC PLATE TO-220 Used on D324, Q305, Q306, Q307, Q310, Q311, Q312, Q319, Q320, Q321, U302,

29、 U303. 81006612MET, HTSNK CLIP HPS SERIES Used on D324, Q305, Q306, Q307, Q310, Q311, Q312, Q319, Q320, Q321, U302, U303. HS00791SCREW, #6-32X1.25 FL SLOT NYL used on L302 JN00031NUT, HEX NYLON #6-32 used on L302 PCB, POWER SUPPLY BOARD Semiconductors DR0086D403,D404,D4063RECT, 1A 600V ULTRAFAST MUR

30、160 DS0002D409,D4102RECT, 100MA 200V SIGNAL 1N3070 DR0084D407,D4082RECT, 8A 600V ULTRAF MUR1660CT QM0055Q403,Q404,Q406,Q4074MOSFET, IRF740 TO220AB IR ONLY QB0014Q4011TRANS, PNP TO92 MPSA92TR DD0003Q4021RECT, 1A2 60V DIAC DZ0021Z401,Z402,Z403,Z404,Z405,Z406,Z407, Z4088ZENER, 500MW 15V 5% 1N5245B Resi

31、stors RC0082R4031RES, 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 1% RM0072R408, R411, R415, R4184RES, MF 365R 1/4W 1% RM0198R4021RES, MF 205K 1/4W 1% RM0340R407,R410,R414,R417,R419,R42

32、0,R425, R4268RES, MF 22R 1/4W 1% FLAMEPROOF 20 INTERMEZZO 1.2s Electrical Parts List (Cont.) Part#Reference DesignatorQtyDescription RX0046R4211RES, MO 47K 1W 5% Capacitors CC0040C4091CAP, CA 4700PF 100V 10% CC0087C4211CAP, CA .01UF 100V 20% CE0013C415,C416,C4183CAP, E 47UF 50V 20% 5MMLS CF0093C406,

33、C408,C412,C4144CAP, F 4700PF 100V 5% 5MMLS CE0040C401,C402,C403,C422,C423,C4246CAP, E 680UF 200V 30X35 85DEG CF0050C426, C427, C430, C4314CAP, F .1UF 250V 10% 10MMLS CF0143C4281CAP, FY1 4700PF 250V 20% DNIC428, C4292 Miscellaneous 500113T403,T4042XFMR, POWER 1000W YT ETD44 3F3 JH0008J4011CNCTR, HEAD

34、ER 5PIN .100CTR KS0021TH4011SURGISTOR, 4R 8A 70J SL154R008 MT0023FO401,FO402,FO403,FO4044TERM, FASTON MALE PCMT 187X032 8100666MET, HTSNK CLIP HPS SERIES USED ON D407,D408,Q403,Q404,Q406,Q407 8100961MET, HTSNK PRIMARY LF SERIES USED ON Q403,Q404,Q406,Q407 8100991MET, HTSNK DIODE LF SERIES USED ON D4

35、07,D408 HN00064NUT, HEX KEP #6-32 ZNPUSED ON THE PRIMARY AND DIODE HEATSINKS HS00604SCREW, #6-32X3/8 PAN PHIL BLK USED ON THE PRIMARY AND DIODE HEATSINKS PCB, EMI Filter Board Semiconductors DR0038D502,D503,D504,D5054RECT, 1A 400V GENERAL 1N4002 DS0001D5121RECT, 100mA 75V SIGNAL 1N4148T QB0002Q5011T

36、RANS, NPN 40V .6A TO92 2N4401 DB0006D5011RECT, 8A 400V BRIDGE UV0007U5021VREG, LINEAR TO220 LM7905CT UV0013U5011VREG, +5V 100MA TO220 LM7805CT DZ0012Z502,Z5032ZENER, 500MW 3.9V 5% 1N5228B Resistors RC0004R5011RES, CF 1M0 1/4W 5% RX0083R5031RES, MO 150R 3W 5 Capacitors CC0059C5071CAP, CA .1UF 100V 20

37、% CE0003C505,C5062CAP, E 2.2UF 50V 20% 105C CE0103C503,C5042CAP,E 100UF 35V 85DEG CF0057C501,C5022CAP,FX.22UF 250V 10% Miscellaneous 21 INTERMEZZO 1.2s Electrical Parts List (Cont.) Part#Reference DesignatorQtyDescription 4800901SUB, #18R 9 187X032/1/4STRP 4800971SUB, #18B 9 187X032/1/4STRP 540124L5

38、011IND, CHOKE CM 500103T5011XFMR, 60HZ 24V 1.1VA 8100881MET, HTSNK 1X2 BRIDGE For D501 JH0008J5021CNCTR, HEADER 5PIN .100CTR KV0001Z5011VARISTOR, 275V 100J .6W MT0023FO503,F05042TERM,FASTON MALE PCMIT 187X032 SR0038SW5021RELAY, SPST TV-5 5AMP 24V HN00061NUT, KEP 1/4AF 6-32 ZNP HS00091SCREW, 6-32 1/2

39、 100 PHIL ZNP PCB, Input/Feature Board Semiconductors UA0003U1041OPAMP, QUAD 14PIN DIL LM324N UA0009U101,U102,U1033OPAMP, QUAD 14P DIL TL074/084 UF0012U1001FOTO, 6PIN 4N35 DR0038D113,D114,D115,D116,D117,D1186RECT, 1A 400V GENERAL 1N4002 DS0001D100, D101, D102, D103, D104, D105, D106,19RECT, 100mA 75

40、V SIGNAL 1N4148T D107, D108, D109, D110, D111, D112, D119, D120, D121,D122, D123, D124 DS0001D119, D120, D123, D124, D125, D1266RECT, 100mA 75V SIGNAL 1N4148T QB0017Q1021TRANS, NPN 150V 0.6A 2N5551 QM0035-SQ100,Q101,Q1033JFET, J111 SELECTED TR ONLY DZ0013Z1001ZENER, 500MW 5.6V 5% 1N5232B Capacitors

41、CC0024C127,C1292CAP, CA 1000PF 100V 10% CC0072C125,C1302CAP, CA 100PF 100V 10% CC0082C122, C1262CAP, CA .1UF 50V 20% CE0003C123,C1242CAP, E 2.2UF 50V 20% 105C CE0098C118, C119, C131, C1324CAP, E 22UF 50V 20% 5X11 .2LS CE0103C1281CAP, E 100UF 35V 85DEG CE0116C103,C1042CAP, E 2.2UF 50V BIPOLAR 6X11 CF

42、0128C108, C1102CAP, F .033UF 100V 5% 5MMLS CF0045C111,C1122CAP, F .1UF 63DC 5% 5MMLS CF0088C114,C115,C116,C1174CAP, F .01UF 100V 5% 5MMLS CF0092C120,C1212CAP, F 1000P 63V 5% .2LS CF0099C1361CAP, F 0.68UF 63V 5% 5MMLS CF0112C102, C105, C1353CAP, F 100PF 63V 5% 5MMLS CF0125C107, C1092CAP, F .068UF 100

43、V 5% 5MMLS CE0138C100,C1011CAP, E 330UF 100V BP 18X35 dniC106, C113, C131, C133, C1345(Do Not Insert) Resistors RC0003R1761RES, 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 RC0037R159,R1642RES, C

44、F 2K0 1/4W 5% 22 INTERMEZZO 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 1/4W RC0277R1711RES, CF 5M6 1/4W 5% RC0

45、281R1661RES, 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 1% RM0

46、113R118,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 1 RM0351R1171RES, MF 9K53 1/4W 1% RP0105R1231PO

47、T, B50K QUAD KNURL SHAFT RM0403R101, R1032RES, MF 54K9 1/4W 1% RC0192R100, R1022RES, CF 2K0 1/2W 5% dniR121, R125, R129, R131,8(Do Not Insert) R134, R138, R140, R145 Miscellaneous JC0052J1011CNCTR, RCA QUAD JACK JC0064J1051DC POWER JACK 2MM DIA JC0176J10018X BINDING POSTS GOLD KNURL JH0008J1021CNCTR

48、, HEADER 5PIN .100CTR JH0074J103,J1042CNCTR, HEADER 8PIN LOCKING .1C SR00062SWITCH, CAP FOR SR0005 USED ON S101 1PC. FUSE HOLDER TO SWITCH; IPC. IEC NEUTRAL TO SWITCH 4801041SUB, #16X2 24 205X032/250X032 SPEAKER WIRE 9300521CUP ENCLOSURE 9300531U-BRACKET FH00061FUSE, HOLDER PANEL MT FS00271FUSE, 6A

49、250V 1.25X.25 GLASS HS004712SCREW, #6-32 3/4 PAN PHIL BLK 4PCS. USED TO MOUNT LINEAR BOARD; 4 PCS USED TO MOUNT POOWER SUPPLY; 4 PCS USED TO SCREW VOLUME BOARD ONTO RABOS BOARD HS00573SCREW, #8-32X1/2 PAN PHIL BLK USED TO ATTACH U-BRACKET TO ENCLOSURE HS006014SCREW, #6-32 X 3/8 PP BLACK 4PCS USED TO MOUNT EMI PCB IN HOUSING; 4 PCS USED TO