Infinity Speaker IL50 User's Manual
Contents
1. REVISION RECORD R104 NAN C106 LTR ECO NO APPROVED DATE 100k 1 First entry 27 JAN 2000 R100 R101 R105 NAN NAN NAN opt 2 Matched to 27 JUN 2000 10v 1KO 100k R120 lt 3 a 10V gt 10v 116 w 0121 0119 IN NAN R121 4 J100 OPT R117 13 114148 114148 5101 9 NAN u103D gt 4 6 2 12 0 953 ai 7 1084 ooo e 22 2120 DUI w 8 C136 luF 20k0 oo ws ra in4148 1n4148 R131 4 10v 1 10 a opt To RABOS c134 DPT 51008 7 7 IN N Col 100 OUT OPEN la T EL J104A 1 3 9 1 aal OPT S100A2. 526 6 140 6 RP302 ALO 055 48349 6 0517 C322 R335 F 9 0507 994 650025 Rev 1 0512 e 6 a D330 e 039 5 1 K 0319 e e 32 e 25116 e R3104 310 6 G 1R3108 0615060 8 RI91 6 e e e R31007 e6
3. e 6 a D330 e 039 5 1 K 0319 e e 32 e 25116 e R3104 310 6 G 1R3108 0615060 8 RI91 6 e e e R31007 e6 e 66 le E R3106 e c367 e 2 5 0321 EI e me i gt 322 1302 pea 1 C gt css Je 5 33 L Infinity INTERMEZZO 1 2s Integrated Circuit Diagrams S d 5V TO220 CC BR A P gt e SS 7905CT TRANS 250V un I ma VREF REGULATOR TO220 TIP47 INTERNAL Sud 1303 502 Q319 gd
4. 6 5 4 2 1 Em aa 1 First Entry 27 JAN 200 TR 2 oin Change 27 2004 E GM MEER VENE A 4 j L Intermezzo 1 2s Schematics a R228 J200A Frequency Adjust 10V J2008 R219 2 J200C 10v l 825RPIN 6 PIN 2 J200D 825 PIN 5 PIN 3 l RABOS_IN R226 TLOB4 340R 200 i RABOS_CONT J200F 2 i y TAA 42006 N_MUTE 9200 RABOS OUT Q Level 5628 PIN 6R205A A10k R202 RABOS IN gt To Volume PCB J201A 5 gt gt 6 B L 2 R208 POT2 J2018 00 J201C RABOS CONT 2 3 to volume PCB wots R233 R234 LED MUTE 2 4 to LED 1201 MUTE gt POT2 gt RABOS OUT 0200 2N5651 10v LD LAST NOT USED R234 C204 J201 Q202 U201 PIN 4 Infinity Intermezzo 1 25 Cw A10k PIN 5 PIN 3 R213B DRAWN Anthony DATED 27 JUN 2000 DATED HECKED PCB DRAWING NO 650071 SH00350B QUALITY CONTROL 37 ZET DATED Rev B DATED R301 C302 PREAMP gt 1 O 1uF R304 910248822152 330 lt 5 11 R305 7k87 R306 REC SIG R310 C304 2304 10k 0 10 R350 1n5240b R302 R307 6K34 6K34 1n4148 LED MUTE gt E 5 1 1084 C303 7 R303 100
5. j C428 OPT 4700 Y2 LT 2 1 REVISION ECO NO APPROVED INITIAL RELEASE DATE P 22 99 C422 4700pF Y2 EMI FIX Add C430 C431 C434 o Updote os per Rev 35 k 1 0409 Q401 1N3070 C430 C429 MPSA92 O luf 200v 4700 Y2 R402 5 AUDIO GROUND zum D407 MURI660CT 0403 IRF 740 9 C409 C406 0 01uF 4700PF 14050 8 0406 MURI60 30 0404 R409 C408 IRF 740 Ud 4700 C418 47uF 50V 0405 Bour 200 FASTONTB7X32 9 SEC DC OUT TA03A R421 17 Spe 47K dw 680UF 200v 2 T 500109 MU 500113 wey AUD 2 e SEC DC OUT 680UF 200V F0404 s FASTONTG7X32 47uF 50V 1404 C412 0406 R413 IRF 740 R426 500109 ATOUBE 22RFP 500115 9 JAQ A 2405 145245 14040 25 AUDIO J4018 C416 2 A7wF 50V AUDIO GROUND 8 JAOIC 5245 25Vv AUDIO D404 25V AUDIO gt MUR160 0405 4010 4 MURI660CT 30V gt J401E 0407 R41 414 4700PF IRF 740 14 C421 0 01 uF 14046 F0401 2407 I 1N5245 FASTONT87X32 NZ c403 cia U V F v 680UF 200 DA 200 F 15 N TITLE Win 1000 WATT POWER SUPPLY PRI DC 10 DRAWN DATED 404 PATRICK LEE 22 99 PRI DC CHECKED DATED DRAWING NO caoz Dec F0402 680UF 200V lu QUALITY CONTROL 640018 R3 5 000105 RELEASED DATED 41 sheet 1 of 2 SCALE F0401 IN IN F0402
6. e 6066 e G6 6 9e E etre an gt RM H MU 1 e 2 E A le 5100 L e e C101 on o e e e S eo ee E 1100 e goo INTERMEZZO 1 2s RABOS x EGa E sees 90000906 T 2999 o mS S ZC 00 29 INTERMEZZO 1 2s Power Supply 1000 WATI POWER SUPPLY C428 ie 9450 e BASH 640018 Rev 3 e 00327 4 30 INTERMEZZO 1 2s Linear Board FOS10 C316 R336 OO Oo e C323 6060000000069
7. j ZZ Power on Delay time 2 AC Power Applied Poweron LED _ BicolorLED located at front mk r _redjcoo Transients Pops ATO Transient 10 Turn on Transient AC Line cycled from OFF to ON Turn off Transient AC Line cycled from ON to OFF Efficiency ooo a a otand by Input Power nom line voltage AC Power Cons 1W nom line voltage Power Cons 680W nom line voltage Efficiency 680W Protection NENNEN Short Circuit Protection functional Direct short at output Thermal Protection PoE functional 11 8 max unclipped Power DC Offset Protection functional present at Speaker Out leads ESD Protection functional ESD 15kV test apply to all input terminals Line Fuse Rating ype T or Slo Blo External fuse w UL SEMKO holder DORA 7 2 INTERMEZZO 1 2s VInfinity Controls and Connections CONTROLS AND CONNECTIONS Rear Panel OWE infinity 1 2 2s Ha 180 ON w E m INPUTS 202 A dee Q 50 130 HIGH LEVEL lt LOW LOW PHASE LOW PASS LOW PASS HIGH PASS R FILTER LEVEL LEVEL FILTER FILTER INPUT OUTPUT AN OF ELECTRIC SHOCK DO NOT OPEN i RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR 00321 1 Front Panel cord Input Subwoofer Lev
8. 0501 O luF cD LD i DU 2301 SY SEM C 1n5245b 229 FOS H sl FASTONTB7X32 R345 2 J3038 1 P e I R347 R346 0302 0 1 0 1 205401 3 R344 LIMIT 1 43034 10 C312 LO 322 Et 0 luF 316 4k53 Q306 R IRF 9640 wed T 4k53 R334 0307 0511 0503 BRUM IRF9640 IRF9640 2N5551 C305 R341330R 224 e in4148 C320 22uF tn4148 R311 Cam 4 99 C30Bopt 0511 114148 R312 15KO a 3 C306 0 022uF FASTONIB7X32 5 0 187 52 FO303 F0304 D315 1n4148 lt CLIP DETECT D314 1n4148 Q316 2n5401 0509 2 5401 2 R339 330R R314 267K FO310 FASTONTB7X3Z C co LAST NOT USED R3113 R366 R374 R378 R383 R387 R3109 C378 6339 C46 0349 C3b2 C354 C357 R348 349 Sie 4 4 4 k 1 1n5245b C364 C365 C368 C369 NN BRA A ove 0330 0322 0326 0329 0324 0318 DRAWNI U307 2304 SPKR CHECKED TH303 L302 J308 J304 J306 J307 QUALITY CONTROL RELEASED Infinity Intermezzo 1 2s Schematics 25V AUDIO J305 25v AUDIO gt C315 22uF R328 4K99 25v AUDIO R329 15 C316 0 022uF 30V_PWM C317 22 pf TITLE HC BASH 25V AUDIO GND 1 REVISION RECORD ECO NO APPROVED ring e ts Corrections Incorporate ACBASH Class ap Add 1 sence regulators chd 99 LTR 2 3 Eege Correction from loyout dy 31 99 Volver 8501 RET
9. 0006 50009 Semiconductors UA0003 UA0009 UF0012 080038 050001 050001 0280017 QM0035 S 020013 Capacitors CC0024 0072 0082 CE0003 CE0098 CE0103 CE0116 CF0128 CF0045 CF0088 CF0092 CF0099 CF0112 CF0125 CE0138 dni Resistors RCO0003 RCOOO4 RC0006 RC0037 L501 1501 9502 2501 FO503 F0504 SW502 PCB Input Feature Board U104 U101 U102 U103 U100 D113 D114 D115 D116 D117 D118 D100 D101 D102 D103 D104 D105 D106 D107 D108 D109 D110 D111 D112 D119 D120 D121 D122 D123 D124 D119 D120 D123 D124 D125 D126 Q102 Q100 Q101 Q103 Z100 C127 C129 C125 C130 C122 C126 C123 C124 C118 C119 C131 C132 C128 C103 C104 C108 C110 C111 C112 C114 C115 C116 C117 C120 C121 C136 C102 C105 C135 C107 C109 C100 C101 C106 C113 C131 C133 C134 R176 R162 R163 R153 R154 R155 R156 R157 R160 R161 R169 R172 R174 R175 R177 R159 R164 22 Qty NI IN Q DD HS ND PD R MP I ND N Description SUB 18R 9 187X032 1 4STRP SUB 18B 9 187X032 1 4STRP IND CHOKE CM XFMR 60HZ 24V 1 1VA MET HTSNK 1X2 BRIDGE For D501 CNCTR HEADER 5PIN 100CTR VARISTOR 275V 100J 6W TERM FASTON MALE PCMIT 187X032 RELAY SPST TV 5 5AMP 24V NUT KEP 1 4AF 6 32 ZNP SCREW 6 32 1 2 100 PHIL ZNP OPAMP QUAD 14PIN DIL LM324N OPAMP QUAD 14P DIL TLO74 084 FOTO 6PIN 4N35 RECT 1A 4
10. A LOGIC K Ve RTICT 4 OCS 2 1 GROUND ERROR 212 OUTPUT 2 INPUT Lis 3 OUTPUT T POWER 2 1 1 al GROUND CURRENT COMP 1 COMPARATOR NN 45V TO220 7805CT ZER REGULATOR JFET J111 123 U302 501 Q100 101 103 201 202 205 301 FOTO MOC3012 4N35 1 D 1304 100 1 INPUT 25 2 GROUND 3 OUTPUT 3 G TRANS PNP 245401 TO92 MPSA92TR 302 304 309 313 316 324 401 Cy 3 Collector 2 Base D 1 Emitter TRANS NPN TO92 2N4401 2N5551TR 2N5551 2N555 Q314 315 317 303 308 322 323 501 102 204 200 2 Base 3 Collector i 24 1 Emitter 6 MAIN TERMINAL MAIN TERMINAL TRIAC DRIVER SUBSTRATE DO NOT CONNECT MOSFET IRF640 740 IRF9640 TO220AB 0305 310 320 321 306 307 311 312 403 404 406 407 O S DUO 34 A 23 DUAL 8 PIN TLO82 U201 OPAMP QUAD 14 PIN LM324N TLO74 84 U306 301 104 101 102 103 200 OUT4 NA IN OUT 00462 2 1
11. J102A m Y A C123 1n4148 1084 11050 0110 T 2 2uF 10V 10_AUX 4 1n4148 Ris 10K LED MUTE O J1028 R157 10k J103 ov gt CLIP DETECT 2 R147 C122 Auf CLIP_DETECT COH MA LED MUTE 0108 6161 1084 1 143k co R163 Wong 15 l Il J103F NAN 5 1018 145 R146 R151 _ L6 R158 100k 10 AUXK 6 MAN ANN AN 1020 opt OR J103G 1k00 VV C116 C117 227 1 Pus MBR NP ma PREAMP 7 s V1OZA O R155 10K DER 1 t 680R 1k00 S MAN J103H R154 5 0 01uF 0 0tuF 1084 e 0105 N_MUTE gt BULK MNTR lt 8 m C121 C120 R153 10K NAN 6 7 2 114148 287 U1028 1000pF PULK MNTR NAN 5 0104 0102 1n4148 10v 1084 A 14148 1 E 10v gt D100 1n4148 c18 TITLE 22uF 3 A 102 E S eature Set LAST NOT USED zus EN nfinity Intermezzo 1 25 J NAN gt 0100 2N5551 R177 R132 100k 2 C136 D126 7100 DRAWN DATED Anthony Patafio 27 JUN 200 4105 22uF AN CHECKED DATED PCB SIZE DRAWING NO REV Q103 wl um Intermezzo 1 2s 650070 U104 NAN gt 0101 QUALITY CONTROL DATED SHOO340B n Rev L Scher I latics RELEASED DATED SCALE SHEET 1 OF 2 35 1 AUTO SENSE REVISION RECORD LTR ECO NO APPROVED DATE 1 First Entry 27 JAN 2000 2 Matched to
12. PRI R402 47K 1W 120V R433 OR 120V R434 OR TH TH401 ARO 2409 1452351 1 2 0401 ZTX558 3 R403 22K 0411 144148 1008 C409 0 OluF 100V 0412 1N4148 T34PI C437 C433 B20UF 200V O luF 200V C431 680UF 200V C434 680UF 200V C435 O luF 200V C436 O luF 200V C438 200 200 O luF 200 R429 33K 2W C442 D N PRI gt O 440 C441 T34P9 0 22uF 250 4700pF Y1 250V C406 0405 R406 4700PF FOP17N40 2 C439 C443 AUDIOGROUND 390R 1W 0 22uF 250v D NJ 1 R407 3 2401 22 0407 MURI660CT 1N5242 12 R408 1 2 562R 2402 1N5245 7 8 e T403C 14 gt 134P2 T403G cT LD 6 0404 R409 C408 FOPI7N40 2 5 5908 4700 0406 1 MUR160 2 50 2 2403 San 1N5242 RAM 562R C418 405 2404 47uF 50V 1 5245 4 4 SEC R425 R426 22RFP Geen gt START 10 PRI gt 14058 T403E PRI LD 1403 C422 500109 560UF 200V D403 At Q406 Pret FQP17N40 2 T404 11 MUR160 5908 1W M 500109 25 AUDIO RAM 3 2405 22RFP C415 1N5242 A7uF 50V R415 562R 2406 1N5245 7 AUDIOGROUND 8 C416 TA04C ATuF 50V gt gt 25V AUDIO 0404 L PRI START gt gt MUR160 0408 MURI660CT T34P2 gt 0407 R416 OCE FOP17N40 2 390R iw LJ R417 3 gt 22RFP 2407 1N5242 14 R418 562R 14046 404 2CT 2408 15 1N5245 A
13. Resistors RC0004 RX0083 Capacitors CC0059 CE0003 CE0103 CF0057 D502 D503 D504 D505 D512 Q501 D501 U502 U501 Z502 Z503 R501 R503 C507 C505 C506 C503 C504 C501 C502 Miscellaneous 21 Qty N A O Q A O gt N A R N Description RES MO 47K 1W 5 CAP CA 4700PF 100V 10 CAP CA 01UF 100V 20 CAP E 47UF 50V 20 5MMLS CAP F 4700PF 100V 5 5MMLS CAP E 680UF 200V 30X35 85DEG CAP F 1UF 250V 10 10MMLS CAP FY1 4700PF 250V 20 XFMR POWER 1000W YT ETD44 3F3 CNCTR HEADER 5PIN 100CTR SURGISTOR 4R 8A 70J SL154R008 TERM FASTON MALE PCMT 187X032 MET HTSNK CLIP HPS SERIES USED ON D407 D408 Q403 Q404 Q406 Q407 MET HTSNK PRIMARY LF SERIES USED ON Q403 Q404 Q406 Q407 MET HTSNK DIODE LF SERIES USED ON D407 D408 NUT HEX KEP 6 32 ZNP USED ON THE PRIMARY AND DIODE HEATSINKS SCREW 6 32X3 8 PAN PHIL BLK USED ON THE PRIMARY AND DIODE HEATSINKS RECT 1A 400V GENERAL 1N4002 RECT 100mA 75V SIGNAL 1N4148T TRANS NPN 40V 6A TO92 2N4401 RECT 8A 400V BRIDGE VREG LINEAR TO220 LM7905CT VREG 5V 100MA TO220 LM7805CT ZENER 500MW 3 9V 5 1N5228B RES CF 1MO 1 4W 595 RES MO 150R 3W 5 CAP CA 1UF 100V 20 CAP E 2 2UF 50V 20 105C CAP E 100UF 35V 85DEG CAP FX 22UF 250V 1096 INTERMEZZO 1 25 Electrical Parts List Cont Part Reference Designator 480090 480097 540124 500103 810088 JH0008 KV0001 0023 SR0038
14. 16 4 DRAWN DATED 14048 Patrick LEE Oct 11 2002 CHECKED PCB PRI PRI gt 640032 REV O zLEASED e T j e I n QUALITY CONTROL 42 0 0lut 200v 0 0luF 200 TH 25V AUDIO AUDIOGROUND AUDIOGROUND 2 REVISION RECORD ure econo see NEM i Eu uu c Z L Intermezzo 1 2s Schematics 424 560UF 2001 F0405 C430 O fuF 200V F0404 SEC OUT R421 100K 1 2w C421 SEC OUT gt SEC C444 G A JAQIA Sou J401B 25v AUDIO gt JAOIC 30V_PWM gt 24010 sec 2 24 POWER SUPPLY 120V PART SH0300
15. CNCTR HEADER 8PIN LOCKING 1C THERMISTOR 100K 25C NTC BUL THERMISTOR PTH9L04BD22TS2F510 TERM FASTON MALE PCMT 250X032 TERM KWIKDISC 187 X 032 FEMA USED ON ONE END OF 480022 AND 48028 TERM FASTON MALE PCMT 187X032 TERM FASTON MALE 205X032 MISC CERAMIC PLATE TO 220 Used on D324 Q305 Q306 Q307 Q310 Q311 Q312 Q319 Q320 Q321 U302 U303 MET HTSNK CLIP HPS SERIES Used on D324 Q305 Q306 Q307 Q310 Q311 Q312 Q319 Q320 Q321 U302 U303 SCREW 6 32X1 25 FL SLOT NYL used on L302 NUT HEX NYLON 6 32 used on L302 600V ULTRAFAST MUR160 RECT 100MA 200V SIGNAL 1N3070 RECT 8A 600V ULTRAF MUR1660CT MOSFET IRF740 TO220AB IR ONLY TRANS PNP TO92 MPSA92TR RECT 1A2 60V DIAC ZENER 500MW 15V 5 1N5245B RES CF 100K 1 2W 5 RES CF 200K 1 4W 5 RES MF 1K00 1 4W 196 RES MF 100R 1 4W 196 RES MF 332R 1 4W 1 RES MF 365R 1 4W 1 RES MF 205K 1 4W 1 RES MF 22R 1 4W 196 FLAMEPROOF INTERMEZZO 1 2s Electrical Parts List Cont Part Reference Designator RX0046 R421 Capacitors 0040 C409 0087 421 CE0013 C415 C416 C418 CF0093 C406 C408 C412 C414 CE0040 C401 C402 C403 C422 C423 C424 CF0050 C426 C427 C430 C431 CF0143 C428 DNI C428 C429 Miscellaneous 500113 1403 1404 JH0008 J401 50021 TH401 MT0023 FO401 FO402 FO403 FO404 810066 810096 810099 HN0006 HS0060 PCB EMI Filter Board Semiconductors DR0038 DS0001 QB0002 DB0006 UV0007 UV0013 DZ0012
16. R3108 R367 R304 R319 R322 R335 R338 R384 R373 R390 R391 R389 R392 R324 R342 R3112 R3113 R368 R345 R3100 R382 R316 R318 R332 R334 R308 R309 R375 R381 R361 R351 R358 R360 R362 R314 R330 R302 R307 R357 R311 R328 R355 R356 R359 R379 R365 R305 R306 R385 R396 R397 R386 R3102 R325 R343 R348 R388 19 Qty 1 1 NW O NNO A D a a O P OO Mi Mi OU Mi Description 6 8UF 250V 10 27MMLS CAP 1UF 100V 20 RES CF 1MO 1 4W 595 RES CF 10K 1 4W 595 RES CF 4 7 1 4W 596 RES CF 100K 1 4W 5 RES CF 330R 1 4W 596 RES CF 330K 1 4W 5 RES CF 30K 1 4W 595 RES CF 33K 1 4W 595 RES CF 150K 1 4W 5 RES ZERO OHM 1 4W RES MF 1K00 1 4W 1 RES MF 10KO 1 4W 1 RES MF 15KO 1 4W 1 RES MF 100K 1 4W 1 RES MF 2K21 1 4W 196 RES MF 3K32 1 4W 196 RES MF 4 75 1 4W 196 RES MF 51K1 1 4W 196 RES MF 5K11 1 4W 196 RES MF 6K81 1 4W 1 RES MF 200R 1 4W 196 RES MF 274R 1 4W 195 RES MF 332R 1 4W 196 RES MF 392R 1 4W 1 RES 750R 1 4W 196 RES MF 1K21 1 4W 196 RES MF 1K50 1 4W 196 RES 1K65 1 4W 196 RES MF 2K43 1 4W 196 RES MF 4 53 1 4W 1 RES MF 20 0 1 4W 196 RES MF 22K1 1 4W 196 RES MF 210R 1 4W 196 RES MF 30K1 1 4W 196 RES MF 267K 1 4W 1 RES MF 6K34 1 4W 1 RES MF 24K9 1 4W 196 RES MF 4 99 1 4W 1 RES MF 294K 1 4W 1 RES MF 7K87 1 4W
17. 1 RES MF 47R 0 6W 1 FLAMEPROOF RES MF 10R 0 6W 196 FLAMEPROOF RES MF 100R 1 4W 196 FLAMEPRF RES 100R 1W 5 RES MO 4K7 1W 5 RES 3K9 2W 595 RES CF 10K 1 2W 5 INTERMEZZO 1 25 Electrical Parts List Cont Part Reference Designator RCO229 R3103 RP0056 RP301 RP302 RW0022 R346 R347 R393 R394 RC0006 R310 Miscellaneous 480022 FO310 480028 09 480084 540130 1302 007 1301 JH0008 J302 JH0016 J303 JHOO74 J301 KS0017 TH302 TH303 KS0019 TH301 MT0003 FO304 MT0005 MT0023 FO301 FO302 FO308 FO311 MT0036 FO303 MS0017 810066 HS0079 JN0003 PCB POWER SUPPLY BOARD Semiconductors DR0086 DS0002 DR0084 QM0055 QB0014 DD0003 DZ0021 Resistors RC0082 RC0138 RM0001 RM0012 RM0071 RM0072 RM0198 RM0340 D403 D404 D406 D409 D410 D407 D408 Q403 Q404 Q406 Q407 Q401 Q402 Z401 Z402 Z403 Z404 Z405 Z406 Z407 Z408 R403 R422 R401 R405 R406 R409 R413 R416 R408 R411 R415 R418 R402 R407 R410 R414 R417 R419 R420 R425 R426 20 Qty AN a N sch A O VP G CO RPE Description RES CF 200K 1 2W 5 POT 5K 8MM HOR TOP ADJ COVER RES WW OR1 2W 5 RES CF 10K 1 4W 5 SUB 18B 6 1 4 STRIP 187X032 SUB 18R 6 1 4 STRIP 187X032 SUB 18G 4 187X032 6 RING IND CM CHOKE 150UH ELYTONE BEAD FERRITE CNCTR HEADER 5PIN 100CTR CNCTR HEADER 2PIN 100CTR
18. 100mV 50 Hz 2 Sweep generator from 20Hz to 300Hz Listen for any rattles clicks buzzes or any other noises If any unusual noises are heard test woofer according to the instructions below Driver Function 1 Remove woofer from the enclosure instructions in exploded view on page 12 2 Check DC resistance of woofer it should be 7 6 ohms 10 3 Connect a pair of speaker cables to woofer 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 6 0V 4 Sweep generator from 20Hz to 1kHz Listen to driver for any rubbing buzzing or other unusual noises 14 LV Infinity INTERMEZZO 1 25 VInfinity Service Bulletin Service Bulletin INF2001 04 Rev2 May 2005 Warranty labor rate MINOR repair To Infinity Service Centers Model Interlude and Intermezzo 150 IL60 1100 IL120s IM1 2s IM4 1t Subject No Output in the event you receive an Interlude or Intermezzo loudspeaker with the complaint There is no output and the LED on the volume control does not light red or green check the item listed below 1 Check the line fuse to make sure it s not damaged Replace if necessary IL50 IL100s Infinity part FS0022 IL60 IL120s Infinity partit FS0026 IM1 2s IM4 1t Infinity partit FS0027 If the fuse is intact or the unit still does not function check the power supply portion of the amplifier circuit descri
19. IN CLOSED LI T ge 2 BWA 100 400uF 100V R106 NA 0 022uF 0 022uF R129 R130 O U il J104B NAN Suas oe ANNCT NNN R102 100k NAN NAN pa ont OR NAN b ot oR I sa 2 R123C R123D 7 C gt 12 U101D R122 R123A R124 R123B a 1 R127 7 9 R128 10 4 5 U1038 10V E i 5 i UI03A NAN bid NAN NAN Ki T 41k2 8 CW 41k2 11 cw ign 1040 R103 C135 e 41k2 2 Cw 41k2 5 CW 11084 50k 50k cno RABOS IN NAN L SCH 5 L om 0 022uF gt RABOS IN gt 8107 100pF 0 022uF E J104 100k a E S RABOS CONT L J104 10V 10V C105 100pF LED MUTE O 123 0124 NAN C113 R138 104G J101A A R10 93k1 J 1n4148 in4148 ES joa R116 R154 R135 LI SAA N_MUTE DOH Y R111 NAN gt AUTO SENSE opt opt e EN RABOS OUT 8 oF 2 NAN 100k t OR C103 2 2uF 10k0 2p sp 1 RABOS OUT R112 NAN NAN uto30 gt 8 NNN Se 3 8 10 wer 2347 n 10 0016 R137 E us C104 72 2 10k0 d t1084 0 luF O tuF 1084 475R 0125 1084 us 187k i TOM 1n414B 8 To Linear R142 103A NAN 10V 10 Pai lt R140 R141 1038 opt OR 2 E 1 13 R143 C114 c15 14 D111 C124 0109 J103C 12 vo WN 0103 114148 2 2uF ic 1n4148 9 gt PREAMP 3 680R 3 8 0106 1n4148 AM TO Aux Power 10 lt 0 0tuF 0 01uF dt w lt MW ZEG D107 R160
20. but never obtrusive Crossover Adjustments If you are using Method 1 as your connection method you need to set the High Level High Pass Filter to or Off When on this adjustment limits the low frequencies that your main speakers will reproduce If you would like your main speakers to also reproduce frequencies below 80Hz you may set this switch to Off If you are using speakers that do not reproduce low frequencies well we recommend that you set the switch to On Low Pass Filter Adjustment Control DD The Low Pass 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 frequency setting between 50Hz 100Hz This will concentrate the subwoofer s efforts on the ultradeep bass sounds required by today s films and music If you are using smaller bookshelf speakers that do not extend to the lower bass frequencies set the Low Pass Filter Adjustment Control to a higher setting between 120Hz 150Hz Note his control will have no effect if the Low Pass Filter Switch is set to Off If you have a Dolby Digital or DIS processor receiver the Low Pass Frequency is set by the processor receiver So you should leave the Low Pass Filter Switch in the Off position Consult your owner s manual to learn how to view or change this setting Phase Control The Phase Switch determine
21. create new ones The specifications and construction details in this and related Infinity publications are therefore subject to change without notice INTERMEZZO 1 2s Detailed Specifications LINE VOLTAGE Hi Lo Line US 120vac 60Hz 108 132 EU 230vac 50 60Hz 207 264 Parameter opecification Unit menn 8joms Nominal Resistor Load 1000 11 THD 1 Watt 0 05 0 3 deg 0 20 250 faston 205 faston 1 1 5 _ Input Sensitivit S 30 Hz Line Input dBr 2 LPF Off Gain Max L ch input onl Speaker Hi Level Input 2 Gain Max L ch input onh Signal to Noise NENNEN SNR A Weighted 100 dBA 9 ig SNR unweighted dBr 8 22k filter SNR rel 1W unweighted 70 dBr 60 relative to 1W output 22k filter Residual Noise Floor 2 mVrms 3 max using RMS reading DMM VOM A P Residual Noise Floor 1jmVrms max 3 Volume max w A P Swept Bandpass Measurement Line freq harmonics I Line Input 10kjohms Nominal Speaker Hi Level Input 1k ohms Nominal Ten Active Filters Es d s D eee Low Pass fixed or variable PANEM Slope 24dB Octave 04 OsDaping 0 Low Pass fixed or variable O Frequency AH j ET RNP pe IET Damping Subs o
22. e 66 le E R3106 e c367 e 2 5 0321 EI e me i gt 322 1302 pea 1 C gt css Je 5 31 INTERMEZZO 1 2s Power Supply 1000 WATI POWER SUPPLY C428 ie 9450 e BASH 640018 Rev 3 e 00327 4 32 INTERMEZZO 1 25 Infinity Linear Board FOS310 C316 R336 OO Oo e C323 6060000000069 526 6 140 6 RP302 ALO 055 48349 6 0517 C322 R335 F 9 0507 994 650025 Rev 1 0512
23. replaced Amplifier should be unplugged and OFF Remove Amp assembly from cabinet following the instructions on Page 12 Identify the Linear board assembly PCB with the output transistors Adjust RP301 and RP302 fully Counter Clockwise See diagram below Apply 120 VAC power to unit turn power switch ON Verify LED illuminates on the front gain control dial unless you have disconnected the plug Connect voltmeter set to DC millivolt range to twin pins on terminal J303 on Linear board Verify initial voltage is less then 0 1 mV i Les Adjust RP301 Clockwise until voltmeter reads 0 3 mV the initial current from step 3 5 Adjust RP302 Clockwise until voltmeter now reads 0 6 mV the initial current from step 8 Turn amplifier OFF Disconnect AC power to unit N Remove voltmeter from terminal J303 Replace amp assembly back into cabinet F0310 CSG R 336 AE os WE pues d E a ri DH RP301 r 20000 go RP302 rs QS Zon 303 ze Sp per a S us yo UK N 9 52 ta zl m oo m Lo m r A Lo e lt gt EIE an C371 ego p I E a 0000200 zra 6 5 52 o o o o O o O INTERMEZZO 1 2s Qo In
24. 0 HIGH LEVEL HICH PASS LOW LOW PHASE LOW PASS LOW PASS R FILTER LEVEL LEVEL FILTER FILTER INPUT OUTPUT AN REKE EE SHO ahusta gt PEN e ES BEGUE DECHOC ELECTRIQUE HE MAN ce INTERMEZZO 1 25 VInfinity Controls and Connections Cont ONE CHANNEL SHOWN AMPLIFIER PROCESSOR FRONT CHANNEL OWU pn 1 SUBWOOFER LFE vL OUTPUT R TO MAIN SPEAKEFS Method 3b SET LOW PASS FILTERQ TO OFF POWER rfi INTERMEZZO 1 25 a za m ON di 6 0 PHASE LOW PASS LOW PASS FILTER FILTER AC FUSE INPUTS ON OFF HIGH LEVEL HIGH PASS LOW FILTER LEVEL INPUT OUTPUT CAUTION REE OF ELECTRIC SHOCK DO IUE DE ONE CHANNEL SHOWN RECEIVER SUBWOOFER SPEAKER DUTPUTS DUTPUTS TO MAIN SPEAKERS SET LOW PASS FILTER Q TO ON 180 a HIGH PASS LOW LOW e PASS LOW PASS R R FILTER LEVEL LEVEL FILTER FILTER INPUT OUTPUT 003214 T FISK OF ELECTRIC SHOCK DO RISQUE DE CHOC ELECTRIGUE PAZ OUVRIR INTERMEZZO 1 2s VInfinity Operation OPERATION Power On Plug your subwoofer cord into a wall outlet Do not use the outlets on the back of the receiver Initially set the subwoofer s Level Control I to the position Tum on your sub by pressing the power but
25. 001 R207 R208 RM0002 R200 R201 R214 R216 R220 R225 R228 R229 R230 R233 RM0003 R219 R224 RM0012 R215 RM0024 R203 RM0031 R231 RM0076 R204 RM0078 R209 RM0080 R217 R223 RM0091 R211 RM0260 R232 RM0271 R206 RM0281 R222 R227 RM0315 R212 RM0369 R221 R226 RM0370 R202 RM0402 R234 RP0087 R205 R213 RP0088 R218 Capacitors CE0003 C203 C204 CF0045 C200 C201 C202 CE0003 C210 C211 CF0045 C204 C205 C206 C207 C208 Miscellanous JH0074 J200 PCB Volume Board RCO273 R237 RPOO97 R235 RX0096 H236 RPO106 HS0047 0070 20034 20036 RABOS CUP 1 2 C0186 0075 DLOO14 D200 24 Qty N e MO W PO D PL Description RES CF 10M 1 4W 5 RES 1KOO 1 4W 1 RES 10 0 1 4W 1 RES MF 15KO 1 4W 1 RES MF 100R 1 4W 1 RES MF 2K21 1 4W 1 RES MF 3K32 1 4W 1 RES MF 562R 1 4W 1 RES MF 680R 1 4W 1 RES MF 825R 1 4W 1 RES MF 3K65 1 4W 1 RES MF 1MO 1 4W 1 RES MF 110K 1 4W 1 RES MF 6K04 1 4W 1 RES MF 2K67 1 4W 1 RES MF 340R 1 4W 1 RES 9K31 1 4W 1 RES 11K5 1 4W 150 POT A10K DUAL 12MM HOR SEL POT DUAL 12MM HOR SEL CAP 2 2UF SOV 20 105C CAP F 1UF 63DC 5 5MMLS CAP 2 2UF SOV 20 105C CAP F 1UF 63DC 5 5MMLS CNCTR HEADER 8PIN LOCKING RES ZERO OHM 1 4W POT A10K SINGLE BRKT D SHAFT RES MO 2K2 1W 595 POT KNOB INT 1 2 LEVEL SCREW 6 32X3 4 PAN PHIL BLK TO MOUNT VOLUME BOARD T
26. 00V GENERAL 1N4002 RECT 100mA 75V SIGNAL 1N4148T RECT 100mA 75V SIGNAL 1N4148T TRANS NPN 150V 0 6A 2N5551 JFET J111 SELECTED TR ONLY ZENER 500MW 5 6V 5 1N5232B CAP CA 1000PF 100V 1096 CAP CA 100PF 100V 1096 CAP CA 1UF 50V 2096 CAP E 2 2UF 50V 20 105C CAP E 22UF 50V 2096 5X11 2LS CAP E 100UF 35V 85DEG CAP E 2 2UF 50V BIPOLAR 6X11 CAP F 033UF 100V 596 5MMLS CAP F 1UF 63DC 5 5MMLS CAP F 01UF 100V 596 5MMLS CAP F 1000P 63V 595 2LS CAP F 0 68UF 63V 5 5MMLS CAP F 100PF 63V 5 5MMLS CAP F 068UF 100V 596 5MMLS CAP E 330UF 100V BP 18X35 Do Not Insert RES CF 1 1 4W 595 RES CF 1MO 1 4W 595 RES CF 10K 1 4W 5 RES CF 2 1 4W 5 INTERMEZZO 1 2s W Infinity Electrical Parts List Cont Part Reference Designator RC0039 RC0083 RCO111 RCO115 RCO135 RC0273 RC0277 RC0281 RM0001 RM0002 RM0011 RM0019 RM0075 RM0091 RM0106 RM0113 RM0115 RM0142 RM0195 RM0110 RM0269 RM0290 RM0351 RP0105 RM0403 RC0192 dni R165 R170 R173 R149 R150 R158 R143 R148 R167 R168 R126 R130 R135 R141 R146 R171 R166 R151 R152 R110 R111 R112 R104 R105 R106 R107 R116 R115 R137 R108 R109 R113 R118 R119 R120 R114 R139 R144 R133 R122 R124 R127 R128 R136 R142 R147 R117 R123 R101 R103 R100 R102 R121 R125 R129 R131 R134 R138 R140 R145 Miscellaneous JC0052 JCOOG4 JCO176 JH0008 JH0074 SR0006 SR0017 SR0041 SR0042 PCB RABOS J101 J1
27. 05 J100 J102 J103 J104 S101 5102 S100 Semiconductors UA0009 UA0010 QB0017 QM0035 S QB0017 U200 U201 Q204 Q201 Q202 Q205 Q200 23 Qty sch BO R PB D OI NW C G Description RES CF 2K2 1 4W 5 RES CF 100K 1 4W 5 RES CF 680R 1 4W 5 RES CF 47K 1 4W 5 RES CF 150K 1 4W 5 RES ZERO OHM 1 4W RES CF 5M6 1 4W 5 RES CF 510K 1 4 5 RES MF 1K00 1 4W 196 RES 1 4W 1 RES MF 100K 1 4W 196 RES 1K30 1 4W 1 RES MF 475R 1 4W 1 RES MF 3K65 1 4W 196 RES MF 14 0 1 4W 196 RES MF 20 1 4W 1 RES MF 23K7 1 4 W 1 RES MF 287K 1 4W 196 RES MF 187K 1 4W 196 RES MF 17K4 1 4W 196 RES MF 93K1 1 4W 196 RES MF 143K 1 4W 1 RES MF 9K53 1 4W 196 POT BSOK QUAD KNURL SHAFT RES MF 54 9 1 4W 1 RES CF 2KO 1 2W 596 Do Not Insert CNCTR RCA QUAD JACK DC POWER JACK 2MM DIA 8X BINDING POSTS GOLD KNURL CNCTR HEADER 5PIN 100CTR CNCTR HEADER 8PIN LOCKING 1C SWITCH CAP FOR SROOO5 USED ON 5101 8 5102 SWITCH 2 POLE 2PDT DPST PUSH SWITCH TV 8 SWITCH CAP 8 8X10 5MM CYL BLK OPAMP QUAD 14 DIL TLO74 084 OPAMP DUAL 8PIN DIL TL082 TRANS NPN 150V 0 6A 2N5551TR JFET J111 SELECTED TR ONLY TRANS NPN 150V 0 6A 2N5551 INTERMEZZO 1 2s to Infinity Electrical Parts List Cont Part Reference Designator Resistors RCO148 R210 RM0
28. 99 Int 1 2 s em ntermezzo 1 45 ni ase ee a ove LOTS TIPA7C ERE E L 7 G 150i 45058 Lad cales J 45 4508 C334 opt Schet latics C548 2303 A Erti EB AU koun noun CU D TO 100uF 1152425 T Corrected Ref Des for 5068 U306C to molch loydut C332 Reversed pins RP301 J303 tp match layout R363 Deleted C357 Changed R306 Value Shorted U304 pins and 6 fo match layout R362 30k1 R364 100 6 03068 gt 7 C3765 Em U307 R361 22k1 UC3842 REGUC3842 R380 c343 I OkO O fuF Vre cc R368 LISE 1k21 opt 6259 C344 SEH 220 R365 294 R369 3k32 22557 P200pF R385 0323 L301 47R FP 1n4148 1 FERRITE BEAD x O 0313 C347 C 2n5401 gt Output 5 470pF 7 5 1008 FP C341 R381 R370 100pF 20 1k00 C345 R382 3 20k0 z470pF 2k40 R384 1 SENCE 2 0514 2N4401 we 6k81 as 1 F 0519 104148 R373 1 LIMIT 200 L PE V R371 A 0 0luF RZ V MNTR lt 3 2 0522 2N5551 R399 d 5 V taatag 0321 R3100 R3101 1k65 C355 5356 N N 470ur 470uF C363 C373 gt CD 5 GATE gt 0323 2 75 2N5551 opt 4 FO309 R396 R397 R398 FASTONT87X32 opt 0524 R3108 4k75 MURB60 Q321 1 7 1RF640 C359 2200pF 0508 FA AA 0524 FASTONTB7X3Z tt 2n5401 1 e R3940R 3 gt co C362 C372 470 0 fuF TITLE I_SENCE man SAA H C B A S H C3582200pF T po Linear Amplifier
29. A BATE 0477 BSBA CHER CHA ber Ki 1G 3501 J 1505 050 050 p 301 70505 F 030 FO508 10509 050 GK 2303 4904 OS 200 Delelecx R330 R324 R78 8587 0589 R390 C327 C559 C364 C365 0522 F30 6302 F305 7304 ui Corrected Ref Des for 5068 0506 to motch layqut Reversed pins RP301 J303 tb match layout Deleted C357 Changed R306 Volue Shorted 0304 pins and 6 o match layout R390 R391 2199 TO POWER SUPPLY TO FEATURE 9302 J301A 10v J302B J3018 J302C JOC tov J3020 J301D LED 9302 J301E CLIP_DETECT 1 J301F J3 o 1G J301H BULK_MNTR Linear Amplifier Buck Regulator DATED DATED PCB 650025 DATED Rev 1 DATED DRAWING NO REV SH00360A 7 LD CD LD REC SIG 10v LD R352 100k R353 100k R354 100k 63314700pF R357 24k9 R359 4k99 R360 30k1 N 3 an F0301 5 0 187 52 F0302 5 0 187 32 e_F R355 R356 4k99 10 10v fov LD Im324 R358 30k 4 9 is Im324 R3103 200 1508 1 REVISION RECORD ECO NO APPROVED s 1 sa correctos wro A Incorporate ACBASH Class 1 np 27 99 R388 a Add 1 sence regulolors cnd ret Me 4
30. ASSEMBLY 4 SCREW 8 32 x 5 BLK MS PPH 16 5 GRILLE CUP 14 6 Front BAFFLE 7 SCREW 6 32 x 5 BLK MS PPH 12 AMPLIFIER 8 GRILLE See options below 9 D COR TRIM PANEL See options below PACKAGING 10 RABOS KIT 11 FOOT PAD 4 12 POWER CORD 15 ft 13 TOP END PAD 14 BOTTOM END PAD 15 CARTON 16 OWNERS MANUAL 17 WARRANTY CARD 18 SURVEY CARD Description Part Number Grille Warm Platinum 335735 040 Grille Midnight Blue 335 35 050 Grille Rich Burgundy 335735 060 D cor Trim Panel Black 335739 030 D cor Trim Panel Cherry 335739 020 335 39 010 D cor Trim Panel Maple 331106 001 335036 001 336202 001 900201 008 333249 003 335270 001 900301 008 VInfinity Part Number NOT FOR SALE 335 35 040 335 39 030 335852 002 335459 001 336658 115 336213 001 33621 3 002 336504 001 336204 001 3358441 001 335868 002 INTERMEZZO 1 25 Exploded View INTERMEZZO 1 25 CABINET NOT FOR SALE 4 AMPLIFIER gt Z NOT FOR SALE a gt 7 Z FZ AP lt 2 7 H D gt lt lt lt J E 7 9 L lt OWCA e UO A A E 22 X lt 4 9 a 5 VIEW pe K z REDUCED D COR TRIM PANEL BLACK 335739 030 lt _ D COR TRIM PANEL CHERRY 335739 020 A sN DECOR TRIM PANE MAPLE 335739 010 n GRILLE WARM PLATINUM 335735 040
31. Buck Regulator DRAWN C376 DATED BUCKREG QUALITY CONTROL DATED PCB 650025 Rev 1 RELEASED DATED SIZE A DRAWING NO REV SHOO 360A SHEET 2 of 2 Intermezzo 1 2s Schematics POT AUX LO 3 2 Q501 N MUTE LD 214401 1 Se LED MUTE 10 AUX L gt 1 Sw502 0512 a EE 1n4148 A no L501 i i CM CHOKE YT7271 J5018 2 2 R501 SWTPOWERRELAY N C 2 ZZ a 501 NEUTRAL 0 22uF 250 X TYPE C502 0 22uF 250 X TYPE 0502 1n4002 D504 1n4002 D505 1n4002 R235 R237 2 oa NAN CW 2 gt POT2 OR 10k 40 LED ex a R236 N_MUTE 2k00 1W D200 DC _LIVE FO501 DC LIVE FO502 gt AUX gt 10_AUX C505 2 2uF C506 2 2uF 10 AUX 9502 79109 DRAWN Anthony Patafio CHECKED QUALITY CONTROL RELEASED 2 1 ECO NO First Entry 27 2000 RABOS Main 202 lt 1 J202B 2 4202 5 J2020 LED MUTE 9 4 J202E N_MUTE 2 Bi J502A 10 AUX mT J5028 2 ec 10 Aux 2 4 J5020 a 502 N_MUTE BD TITLE AC Line Filter 8 RABOS Gain PCB Infinity Intermezzo 1 2s amp 4 11 DATED 27 JAN 200 SIZE DRAWING NO REN SH00370A A C431 O fuF 200v PRI PRI
32. C332 C338 2 CAP CA 01UF 100V 20 0108 C307 C317 2 CAP CA 22PF 50V 10 CE0018 C329 C330 2 CAP 100UF 25 20 5MMLS CE0098 C301 C309 C310 C319 C320 5 CAP 22UF 50V 20 5X11 5MMLS CE0103 C348 1 CAP E 100UF 35V 85DEG 5MMLS CE0106 C305 C315 C326 3 CAP E 22UF 35V BP 8X11 5MMLS 0008 C342 1 CAP 2200PF 100V 5 5MMLS CF0035 C306 C316 2 CAP F 022UF 100V 5 5MMLS CF0045 C302 C303 2 CAP F 1UF 63DC 5 5MMLS CC0032 C358 1 CAP C 2200PF 600V 10 BULK CC0017 C340 1 CAP C 330PF 100V 10 5MMLS BU CC0021 C360 C362 C363 3 CAP C 470PF 1KV 10 BULK 0072 C341 1 CAP CA 100PF 100V 10 0078 C344 1 CAP 22UF 50V 10 2LS BULK 0095 C345 C347 2 CAP C 470P 100V 5 CE0121 C355 C356 2 CAP E 470UF 200 20 30X25 18 INTERMEZZO 1 2s Electrical Parts List Cont Part Reference Designator 146 CC0059 Hesistors RCOOO4 RC0006 RC0061 RC0083 RC0087 RC0116 RC0127 RC0128 RCO135 RC0273 RM0001 RM0002 RM0003 RM0011 RM0024 RM0031 RM0035 RM0037 RM0039 RM0043 RM0065 RM0069 RM0071 RM0073 RM0079 RM0082 RM0083 RM0084 RM0089 RM0093 RM0113 RM0114 RM0118 RM0120 RM0139 RM0148 RM0165 RM0180 RM0276 RM0304 RM0336 RM0339 RM0365 RX0072 RX0074 RX0097 RC0005 C361 C304 R399 R349 R350 R303 R323 R326 R32 R339 R340 R341 R3107 R3106 R376 R363 R313 R395 R344 R370 R371 R372 R3101 R377 R380 R312 R329 R352 R353 R354 R364 R3104 R3105 R315 R317 R331 R333 R320 R321 R336 R33 R369
33. GRILLE MIDNIGHT BLUE 335735 050 GRILLE RICH BURGUNDY 335735 060 REMOVE THESE K CUPS AND SCREWS ONLY TO SERVICE THE INTERMEZZO 1 2s 1 Remove the grille and side panel 2 Extract 8 of the rubber grille retainers shown in view A above this can be accomplished by carefully pulling them out of the cavities with long nosed pliers or similar tool 3 Remove the 8 Phillips screws that are now exposed 4 Carefully lift the front baffle with driver and RABOS controls attached off the cabinet 5 To service the amplifier remove the 8 phillips screws at the rear of the enclosure and push the amplifer assemby out the front 12 INTERMEZZO 1 2s Packaging View M L HI e L 13 INTERMEZZO 1 2s VInfinity Test Set Up and Procedure AC VOLT METER 10V SIGNAL EES GENERATOR INTERMEZZO 1 2s UNDER TEST AMPLIFIER je 4 SPEAKER 335733 AMPLIFIER 00464 The operation of the Intermezzo 1 2s subwoofer and the proper settings for the Room Adaptive Bass Opitmization System or R A B O S is thoroughly covered in the Owner s guide part 336204 001 For service purposes the R A B O S system is canceled when all three front panel controls F L W are turned fully CW Clockwise The only other control of concern is the Main Level Control on the front panel which operates like a tradi
34. O RABOS BOARD MISC GASKET Used on RABOS Housing STANDOFF 3 8 SPACER NYLON STANDOFF 14MM LED 2PIN INTERMEZZO 1 2 RABOS HOUSING CNCTR FEM FEM HARN 8P 18 SHIELD MISC RUBBER GROMMET RABOS HSG FOR SEALING RABOS HOUSING LED 3MM BICOLOR RED GR INTERMEZZO 1 2s to Infinity Electrical Parts List Cont Part Reference Designator Miscellaneous 480033 480104 930052 930053 FH0006 FS0027 HS0047 HS0057 HS0060 HS0078 INTERMEZZO 1 2H INTERMEZZO 1 2P JC0079 JC0129 JC0179 JC0180 JC0181 JC0182 MZ0042 SR0032 HS0054 HS0088 25 Qty Description SUB 18R 4 1 4 187X032 187X032 1PC IEC LIVE TO FUSE HOLDER 1PC FUSE HOLDER TO SWITCH IPC IEC NEUTRAL TO SWITCH SUB 16X2 24 205X032 250X032 SPEAKER WIRE CUP ENCLOSURE U BRACKET FUSE HOLDER PANEL MT FUSE 6A 250V 1 25X 25 GLASS SCREW 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 SCREW 8 32X1 2 PAN PHIL USED TO ATTACH U BRACKET TO ENCLOSURE SCREW 6 32 X 3 8 PP BLACK 4PCS USED TO MOUNT EMI PCB IN HOUSING 4 PCS USED TO MOUNT EMI HOUSING U BRACKET 6 PCS TO SECURE PANEL TO ENCLOSURE SCREW 4 HI LOW PAN PHIL BLK USED TO SECURE RABOS BOARD IN HOUSING INTERMEZZO 1 2 MAIN ENCLOSURE INTERMEZZO 1 2 MAIN PANEL CNCTR 5PIN FEM FEM HARNESS 7 J401 ON POWER SUPPLY TO J302 ON LINEAR CNCTR AC IEC
35. Prelude 27 JUN 2000 3 4 H a 10_AUX L gt gt 10V 0115 dius Intermezzo 1 2 0113 0117 14002 10V I Sr ochematics C131 l 2206 ZR m4 14 14 4 U103 U101E U104E U102E 1084 1324 t1084 132 1 22uF T 1n4002 10V 0114 114002 114002 0116 10 AUX 5 gt 10v C125 100pF LI C130 100pF R166 ANN 0112 1n4148 LI 510k NAN 13 C126 O luF Im324 R175 10k0 U 14 10 R170 R171 01045 k LED MUTE N MUTE xs 2 E UI04C ANN AAA ef w 1 de C127 3 Su un 5 48 gt gt X 5 R174 10k0 1324 R167 1000pF d C128 47 100uF T Im324 m324 a 10V kr 73 22 R168 150k 10v gt op 243 6129 1000pF 8169 10k0 d J105 CONDC_POWER R176 Vida 2 2 5 3 A noo A 3 1152325 4n35 gt RABOS_CONT TITLE Feature Set R177 Ls Infinity Intermezzo 1 25 lt 10v DRAWN DATED Anthony Patafio 27 JUN 200 CHECKED DATED PCB SIZE DRAWING NO REV QUALITY CONTROL DATED 650070 5100340 Rev RELEASED DATED SCALE SHEET 2 0F 2
36. SOCKET 250 2PIN CNCTR 5 PIN FEM FEM HARNESS SHIELDED 14 J502 ON EMI TO J102 ON FEATURE CNCTR 8 PIN FEM FEM HARNESS SHIELDED 18 J104 ON FEATURE TO J200 ON RABOS CNCTR 8 PIN FEM FEM HARNESS SHIELDED 18 9103 ON FEATURE TO J301 ON LINEAR 2 CONDUCTOR AC LAMP CORD 8 4X187X032 STANDOFF 3 8 6 32 NYLON HEX USED TO MOUNT LINEAR BOARD SWITCH ROCKER TV5 SCREW 4 1 2 TYPE AB PP BLK 6 PCS USED TO SECURE BINDING POSTS TO PANEL 1 PC USED TO SECURE RCA JACKS TO PANEL SCREW 8 32 1 3 4 PAN PHIL BL USED TO MOUNT U BRACKET TO ENCLOSURE INTERMEZZO 1 2s to Infinity Electrical Parts List Cont Part Reference Designator HS0090 HWOOO4 HWOO40 0071 MMO0073 0074 20003 MZOO43 RP0057 26 Qty 2 Description SCREW M3X16MM PAN PHIL BLK TO ALIGN SROO41 WASHER SPLIT 6 ZNP TO MOUNT POWER SUPPLY AND LINEAR BOARD WASHER FLAT 8 NYLON 3 8 USED TO MOUNT U BRACKET TO ENCLOSURE MISC CUP GASKET INTERMEZZO 1 2 MISC RUBBER GROMMET FOR 5PIN FOR SEALING ENCLOSURE OF THE 5PIN CABLE HOLE MISC RUBBER GROMMET 2X8 PIN FOR SEALING ENCLOSURE OF 2X8 PIN CABLE STANDOFF 6 32 3 8 ROUND AL 4 TO SUPPORT POWER SUPPLY STANDOFF 121D 250D 37L PVC TO ALIGN 5 0041 POT KNOB CR00 20MB 16H INTERMEZZO 1 2s NEUTRAL AC Filter 2f do Infinity 00327 1 INTERMEZZO 1 2s Feature ses
37. VINfinity INTERMEZZO 1 25 Subwoofer Service Manual Infinity Systems Inc 250 Crossways Park Dr Woodbury New York 11797 REV 4 5 2005 INTERMEZZO 12s CONTENTS 3 DETAILED SPEGCIFIGAIIONS E 4 CONTROLS and CONNECTIONS 6 OPERA NON uuu san e e pa 10 MECHANICAL PACKAGING PARTS LIST 11 EXPLODED VIEW of INTERMEZZO 1 25 12 MIN ok tn ant part gi a tt a n 13 TEST SET PROCEDURE iu soit u ua rep ti a 14 BUEEE TIN TINF20015004 u u 15 IM 1 25 ADJUST BIAS PROCEDURE 17 ELECIRICAL PAR bo 18 PRINTED CIRCUIT BOARD DIAGRAMS 27 INTEGRATED CIRCUIT DIAGRAMS 34 SORME MATICO S 35 INTERMEZZO 1 2s VInfinity Specifications Frequency Response Subwoofer Amplifier Output 2nd and 3rd Order Harmonic Distortion Crossover Frequencies Dimensions H x W x D Weight 23Hz 130Hz 3dB 30Hz 130Hz 1 5dB 850 watts continuous In to 8Q from 20Hz 100Hz with no more than 0 1 THD 2 600 watts peak 1 Yo 20Hz 130Hz 95dB SPL 50Hz 130Hz continuously variable 24dB Octave 15 1 4 x 18 1 4 x 13 3 4 387mm x 464mm x 349mm 60 Ib 27 3kg Infinity continually strives to update and improve existing products as well as
38. bed below 2 Refer to Exploded view page for detailed instructions on amplifer removal from the enclosure 3 Remove all connectors and screws necessary to detach the Power Supply PCB from the main chassis heatsink Squeeze the heads of the plastic standoffs with long nosed pliers to detach the PCB from the heatsink 4 Refer to the illustration on page 2 Check the DC resistance of following parts in circuit with a DMM IRF740 MOSFETS Q501 Q502 DtoSorStoD Should measure gt 28K ohms Infinity partit QM0055 GtoSorStoG Should measure gt 400 ohms Dto GorGtoD Should measure gt 28K ohms IL60 22 Ohm 0 6W Resistors R506 R503 Should measure 22 ohms 1 Infinity part RM0340 422 Ohm 1 4 watt Resistors R505 R502 Should measure 422 ohms 1 Infinity part RM0397 ZIN D IRF740 MOSFETS Q4 Q5 DtoSorStoD Should measure gt 28K ohms G 5 Infinity part 0055 GtoSorStoG Should measure gt 400 ohms Dto GorGtoD Should measure gt 28K ohms Wa m 1 1008 Infinity partit RM0340 together before Infinity RM0075 measurements are IRF740 MOSFETS Q403 404 406 407 DtoSorStoD Should measure gt 28 ohms taken the DMM Infinity partit QM0055 GtoSorStoG Should measure gt 400 ohms mon will charge e circuit and the IM1 2s DtoGorGtoD Should measure 28K ohms value may change Infinity part 0340 the values above 365 Ohm 1 4 watt Resistor Very low values R408 411 415 418 that do not change in
39. dicate a shorted Infinity RM0072 MOSFET 5 Replace any defective parts above that show measured values lower than normal 6 Reconnect J505 or J6 multicolor ribbon cable connector remount the Power supply PCB reconnect J501 502 or J4 J5 black red Faston connectors 7 All models except 1 25 IM4 1t temporarily DO NOT connect pair of black red leads on the linear PCB Isolate the ends so they are not touching each other or any conductive material For models 1 25 IM4 1t procedure is finished replace amplifier 15 INTERMEZZO 1 25 WW Infinity 8 Connect the subwoofer 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 1 60 Q504 Q507 IRF640 on the Power Supply PCB Infinity part 0015 IL50 IL100s Q1 IRF540 on the Power Supply PCB Infinity part QMOO20 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 subwoofer Q501 4 R503 R505 amp R502 160 IL120s 150 1 1008 IM1 2s IM4 1t L Infinity IM 1 25 ADJUST BIAS PROCEDURE Mandatory when any output MOSFET transistors Q305 310 320 321 306 307 311 312 are
40. el Control Power Switch R A B 0 5 Controls Speaker Level Inputs 2 Center Frequency Adjustment Speaker Level Outputs R A B O S Level High Level High Pass Filter Switch Bandwidth Adjustment Low Level Input Connectors Low Level Output Connectors Phase Switch Low Pass Filter Switch Variable Low Pass Filter Adjustment INTERMEZZO 1 2s VInfinity Controls and Connections Cont The Infinity Intermezzo 1 25 offers unprecedented flexibility for connecting the system to any type of audio or home theater system Consult the table at right to determine which system description most closely matches your own then follow the hook up method corresponding to that system If none of these system configurations seem to match yours consult your dealer or Infinity customer service for direction on how best to hook up your system For Methods 2 3b and 4 make sure all bass management features are properly set he Audio channels should all be set to OSmallOor OHigh Pass0 and the subwoofer set BLACK 1 LOOSEN TERMINALS 2 INSERT BARE END TIGHTEN TERMINALS LI 3 SET LOW PASS FILTER 9 TO ON NO STRIPE STRIPE 4 SET HIGH PASS SWITCH 5 TO ON OR OFF SEE P 8 AC FUSE 6A 250V SPEAKER OUTPUTS System Type 2 Channel receiver or integrated amplifier that has no subwoofer output or Pre out Main In connectors 2 Channel receiver or integrated a
41. finity Electrical Parts List Part Reference Designator Qty Description Linear Amplifier Regulator Board Semiconductors DS0001 0301 0302 0303 0304 0305 24 RECT 100mA 75V SIGNAL 1N4148T D306 D307 D308 D309 D310 D311 D312 0313 0314 0315 D316 D317 D318 D319 D320 D321 D323 D325 D330 DROO85 D324 1 RECT 400V TO220AC MUR860 QB0002 Q314 Q315 Q317 3 TRANS 40V 6A TO92 2N4401 QB0017 Q303 Q308 Q322 Q323 4 TRANS NPN 150V 0 6A 2N5551TR QB0018 Q302 Q304 Q309 Q313 Q316 Q324 6 TRANS PNP 150V 0 6A 2N5401TR QB0033 Q319 1 TRANS NPN 250V 1A TO220 TIP47 2 0015 Q305 Q310 Q320 Q321 4 MOSFET IRF640 TO220AB QM0032 Q306 Q307 Q311 Q312 4 MOSFET IRF9640 TO220AB QM0035 S 0301 1 JFET J111 SELECTED TR ONLY UA0003 U306 1 OPAMP QUAD 14PIN DIL LM324N UA0009 U301 1 OPAMP QUAD 14P DIL TL074 084 UF0013 U304 1 FOTO 6PIN MOC3012 UP0004 U307 1 PWM 8PIN DIL UC3842N UV0007 U303 1 VREG LINEAR TO220 LM7905CT UV0013 U302 1 VREG 5V 100MA TO220 LM7805CT DZ0018 U305 1 ZENER 2 5 37V SHUNT TL431CLP DZ0002 Z303 1 ZENER 500mW 12V 5 1N5242B 020021 2301 2302 2 ZENER 500MW 15 596 1N5245B 020034 2304 1 ZENER 500MW 10V 596 1N5240B Capacitors 0020 C335 C366 2 CAP CA 470 100V 596 0040 C313 C324 C331 3 CAP CA 4700PF 100V 10 0059 C311 C312 C322 C323 C372 C373 6 CAP CA 1UF 100V 20 CCO0065 C337 C367 2 CAP CA 2200P 100V 1096 0079 C343 1 CAP C 1UF 50V 20 5MMLS 0082 C350 C351 C370 C371 4 CAP CA 1UF 50V 20 CC0087
42. mplifier Connection Methods with preamp output and input connectors 2 2 Channel system with separate preamplifier and power amplifier 2 Dolby Pro Logic with THX Dolby Digital or DIS receiver with a filtered subwoofer or LFE output connector 3a Dolby Digital or DTS processor with separate power amplifiers or multichannel amplifier 3b on HA certified Dolby Pro Logic receiver with full range subwoofer outputs 4 ONE CHANNEL SHOWN AMPLIFIER RECEIVER RIGHT CET ON OFF o O RISK OF ELECTRIC SHOCK DO BEGUE DE CHOC ELECTRKSUE HE PAS OUVRIR RIGHT SPEAKER m L LOW LEVEL INPUT 0 180 ON OFF PHASE LOW PASS LOW PASS FILTER FILTER LOW LEVEL OUTPUT 00321 2 INTERMEZZO 1 2s VInfinity Controls and Connections Cont SET LOW PASS TO ON MV INTERMEZZO 1 2s N 180 ON G p 6 O A PHASE LOW PASS LOW PASS j FILTER FILTER INPUT OUTPUT ONE CHANNEL SHOWN PREAMP OUTPUTS AMPLIFIER INPUTS ONE CHANNEL SHOWN SURROUND RECEIVER SUBWOOFER LFE FRONT SPEAKER TO MAIN SPEAKERS OUTPUT OUTPUTS SET LOW PASS FILTER TO OFF POWER ai L W INTERMEZZO 1 25 LU OO OO a INPUTS OUTPUTS 180 ON 5 120V PHZ 6A de re O OQ 0 6
43. nic filter HPF ed po Frequency 12 11 BE po lpej 12jjp Ocae Line Out Filter HPF switchable Low level output to satellites Frequency switchable A 0000000000 1 High Level Out Filter HPF yes switchable Passive 330uF 100V capacitor Ten Parametric EQ BOS Z ui iM Frequency Pot yes j2tdetentpot 0 1 steps OOO NA ET on __ 21detent pot 0 5dB steps functional functional funtional Locate at amp plate push button funtional Locate at amp plate SP rated 10A 120V 240V or push button funtional Locate at amp plate more push button funtional Locate at amp plate ON Out mini DC funtional Locate at amp plate O D 5 0mm I D 00317 1 INTERMEZZO 1 25 Detailed Specifications Cont Condit ions Hi Level Out Auto Turn On yes no Under the condition that bias power never exceed 15W ATO Input Frequency 317 30Hz into single Line Speaker Input On BOS Off ATO Bandwidth ATO LPF for noise immunit LPF On BOS Off ATO Turn on time Amp connected and AC on then input signal applied Auto Mute Turn OFF Time Time before muting after signal is removed Power on Features
44. s whether the subwoofer speaker s piston like action moves in and out with the main speakers 0 or opposite the main speakers 190 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 Final Positioning After correctly connecting the Intermezzo 1 2s and verifying that both the subwoofer and main speakers are playing it is time to optimize the system for your particular listening room Earlier you placed the subwoofer in its general location Finding the exact location for optimum performance sometimes only involves moving the speakers up to a few inches in any direction We urge you therefore to experiment with placement until your speakers deliver their full potential 00321 5 The operation of the Intermezzo1 2s subwoofer with regards to the proper settings for the Room Adaptive Bass Optimization System or R A B O S is thoroughly covered in the Owner s guide part 336204 001 For service purposes the R A B O S system is canceled when all three front panel controls F L W are turned fully Clockwise The only other control of concern is the Main Level Control on the front panel which is a traditional potentiometer 10 INTERMEZZO 1 2s Mechanical Packaging Parts List Ref No Description MECHANICAL 1 GASKET REAR 2 12 Woofer C M M D Shielded DCR 7 6 ohms 10 J RABOS
45. tional potentiometer Equipment needed e Function signal generator sweep generator e Integrated Amplifier Multimeter RCA cables Speaker cables General Unit Function UUT z Unit Under Test Switch Controls MAIN LEVEL control full clockwise 0 LOW PASS FILTER knob full clockwise 130 Hz LOW PASS FILTER button OFF depressed HIGH PASS FILTER button OFF depressed PHASE button either position 1 From the signal generator connect one line level RCA cable to the IM1 2s Low Level Input jacks L R on the UUT Use a Y cable from a mono source if necessary to connect to both inputs Turn on generator adjust to 140mV 50 Hz Plug AC power cord in UUT turn power switch ON Red LED should ON in the Level wheel at the front of the UUT Turn up LEVEL control to full counterclockwise 10 Green LED should ON Bass response should be heard and felt Turn LEVEL control full clockwise 0 Turn power switch OFF Connect one pair of speaker cables to one set either R or L of the Speaker input terminals on UUT Cables should be connected to an integrated amplifier fed by the signal generator 8 Turn on signal generator and adjust so that speaker level output at the amplifier is 7 0V 50 Hz 9 Turn power switch ON turn LEVEL control full counterclockwise 10 10 Bass response should be heard and felt cu Sweep Function 1 Follow steps 1 3 above using a sweep generator as a signal source adjust the generator to
46. ton on the rear panel Turn on your entire audio system and start a CD or movie sound track at a moderate level Adjust Gain Turn your subwoofer s Level Control di up to the 5 position half way 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 button been pressed to the On position Note The Level Control on the front panel will turn green when the power is on 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 volume control of the preamplifier or stereo to a comfortable level Adjust the subwoofer s Level Control D 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 nave a tendency to set the subwoofer volume too loud adhering to the belief that a subwoofer is there to produce lots of bass his is not entirely true 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
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