Onkyo-A905TX-int-sm维修电路原理图.pdf

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1、SERVICE MANUALSERVICE MANUAL Ref. No. 3677 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAK

2、E LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. 052001 A-905TX INTEGRATED STEREO AMPLIFIER A-905TX UDT 120V AC, 60Hz UPT 230-240V AC, 50Hz STANDBY/ON PHONES STANDBY A-905TX I

3、NTEGRATED STEREO AMPLIFIER TREBLEBASSBALANCE POWER OFF/1/2 +LR PRESENCE ACOUSTIC CDMDTUNER LINE/DVD TAPE CDR/PC SOURCE DIRECT DIRECT DIRECT TONE INPUT ONOFF VOLUME WIDE RANGE AMP TECHNOLOGY CLOCKSLEEPEFFECT GRAPHIC EQ MODE 123 456 789 10 / 0 - - / - - - VOLUME PRESET F MA M PLAY MODE PLAY MODE REPEA

4、T CLEAR SCROLL MEMORY REPEAT CLEAR DISC REPEAT CLEAR ACOUSTIC PRESENCE TONE RANDOM TIMER UP/DOWN ENTER MUTING INPUTTUNER M D DVD C D CDR TAPE REC REC PAUSE / STEP STANDBY/ ON REMOTE CONTROLLERRC -456S RadioFans.CN 收音机爱 好者资料库 A-905TX SPECIFICATIONS PART-XX SERVICE PROCEDURES PART-XXReplacing the fuse

5、s REF.NO.PART NO.DESCRIPTION This symbol located near the fuse indicates that the fuse used is show operating type, For continued protection against fire hazard, replace with same type fuse , For fuse rating, refer to the marking adjest to the symbol. Ce symbole indique que le fusible utilise est e

6、lent. Pour une protection permanente, nutiliser que des fusibles de meme type. Ce demier est indique la qu le present symbol est apposre. F901 2521581.6A-UL/T-237, Fuse 2520690.8A-SE-EAK, Fuse F902-F9042.5A-SE-EAK, Fuse 252075 NOTE: : Asian model only for 120V : Asian model only for 230V RadioFans.C

7、N 收音机爱 好者资料库 A-905TX CHASSIS EXPLODED VIEW # A51 A65 A66 A11 A10 A10 A11 A10 A61 A64 A63A52 A58 A50 A67 U9 A1 A13 A55 A53 A54 A56 A73 A73 A16 U4 F901 A43 A43 A25 A26 E860 A34 A34 T901 Q523 Q525 Q526 Q524 Q528 Q527 A28 A10 P701 A10 A10 A10 U3 U2 P402 P402 A46 A49 A49 A49 A49 U7 U1 U8 U5 A41 A27 A27 P

8、801 A81 A40 A11 A11 A11 P901 P584A U10 F903F904 F902 A47 A-905TX CHASSIS EXPLODED VIEW PARTS LIST # REF NO.PART NO.DESCRIPTIONREF NO.PART NO.DESCRIPTION A127111123Front bracketP402 27190011KGLS-6S, Holder A108381300883TTB+8B, Self tapping screwP584A880009Plastic rivet, NRP-345 A118384300883TTB+8B(BC

9、), Self tapping screwP701 27191106UAMS-05S-2, Holder A1328198862Facet, VOLP801 25055436 orNPLG-2P418, Shorted plug A16 27100375DChassis25055945 A25 27160451B 27160452B A2629110083Adhesive tape, CROSS-16UQ523,Q524 2202303 or * 2SC4512-O or A278015253TTB+8B(BC), Special screw 2202304 or * 2SC4512-Y or

10、 8384300883TTB+8B(BC), Self tapping screw 2202305 * 2SC4512-P, Transistor A28 8014333SMS8W.SW+14B(BC), special screwQ525,Q526 2202313 or * 2SA1726-O or A3427141530ARetainer, HS-22202314 or * 2SA1726-Y or A4027300750Bussing cord2202315 * 2SA1726-P, Transistor A4127122831Rear panel Q527,Q528 2212654 o

11、r * 2SC3421-Y or 27122832Rear panel 2212653 * 2SC3421-O, Transistor A43 8304400894TTC+8C(BC), Self tapping screw A46 28184759-1 A4729362571Label, WARNING 2301423NPT-1374D, Power transformer A49 838930088 Heat sink P901 253277MILAS-UC-2#18, Power supply cord Heat sink 253193HITAS-CEE, Power supply co

12、rd Top cover T901 3TTB+8B(UN), Self tapping screw 2301424NPT-1374P, Power transformer A508384301073TTB+10S(BC), Self tapping screw U11A905530-4BNADG-6630-4B, Main circuit PC board assy A51 27212298Front panel 1A905530-4CNADG-6630-4C, Main circuit PC board assy A52 28198894Facet 7P U21A905531-4BNAAF-

13、6631-4B, Preamplifier circuit PC board assy A53 28198895Facet 1P 1A905531-4CNAAF-6631-4C, Preamplifier circuit PC board assy A54 28198925Facet A U31A905532-4BNAAF-6632-4B, Acoustic circuit PC board assy A55 27268037Guide A 1A905532-4CNAAF-6632-4C, Acoustic circuit PC board assy A5628325133Knob, FM U

14、41A905533-4BNAPS-6633-4B, Power supply circuit PC board assy A5828191798Clear plate, RE 1A905533-4CNAPS-6633-4C, Power supply circuit PC board assy A6128325926Knob, INPUT U51A905534-4BNADIS-6634-4B, Display circuit PC board assy A6328135247YBadge 1A905534-4CNADIS-6634-4C, Display circuit PC board as

15、sy A6428325925Knob, VOL U71A905536-4BNAETC-6636-4B, Speaker terminal PC board assy A6528325674Knob, TD 1A905536-4CNAETC-6636-4C, Speaker terminal PC board assy A6628325927Knob, TONE U81A905537-4BNAETC-6637-4B, Terminal PC board assy A67 28325673Knob, POWER 1A905537-4CNAETC-6637-4C, Terminal PC board

16、 assy A73 27175323Leg AS U91A905539-4BNAETC-6639-4B, Power switch PC board assy A81 29362630Label, PROCESSOR 1A905539-4CNAETC-6639-4C, Power switch PC board assy F901 2521581.6A-UL/T-237, Fuse U101A905540-4CNAETC-6640-4C, Fuse PC board assy 2520690.8A-SE-EAK FSBFUSE, Fuse F902-F9042.5A-SE-EAK FUSE N

17、OTE: : Asian model only for 120V : Asian model only for 230V NOTE: THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED. CAUTON : Replacement of the transistor of mark * ,if necessary, must be made from the same beta group(HFE) a

18、s the original type. 252075 SCHEMATIC DIAGRAM-1 U7 U9 U4 U10 U1 U8 SPEAKER TERMINAL PC BOARD A-905TX POWER SWITCH PC BOARD POWER SUPPLY CIRCUIT PC BOARD FUSE PC BOARD MAIN CIRCUIT PC BOARD TERMINAL PC BOARD -1.2 1.2 5.6 12.2 -12.2 12.411.8 -24.6 24.6 -1.2 1.2 -24.1 -24.6 24.6 24.1 -24.1 -24.6 24.6 2

19、4.1 E LENT. POUR UNE PROTECTION PERMANENTE,NUTILISER CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE. QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE WITH SAM

20、E TYPE FUSE. FOR FUSE THIS SYMBOL LOCATED NEAR THE FUSE INDICATES THAT THE FUSE USED IS SLOW OPERATING TYPE ATTENTION VA ET CALIBRATION COMME INDIQUE. DINCENDIE, REMPLACER UNIQUEMENT PERMANENTE CONTRE LES RISQUES AFIN DASSURER UNE PROTECTION PAR UN FUSIBLE DE MEME TYPE VA AGAINST FIRE HAZARD, REPLAC

21、E FOR CONTINUED PROTECTION AND RATING INDICATED. ONLY WITH FUSE OF SAME TYPE CAUTION P910 P307 D914-D917 GP104003E + JL702B S951 S951 S951 P910P910 *C312 221K *C311 221K *C308 101K *C307 101K *C304 101K *C303 101K *C302 101K *C301 101K *C320 101K *C319 101K *C316 101K C315 101K *C314 101K *C313 101K

22、 C712 104J P951P952 P902AP911AP912A P951 P952 P951 P952 P911AP912A P951 P952 P902A P951P952 P912C P911C P911A P912A P914AP913A P951P952 P902A P911B P902BP912B P586BP585B P586AP585A P501A P401A Q713 M51943B GI O Q911 78M56 GI O R576 500B R575 500B R713 100K*7 R712 100K*4 JL901A JL901AJL901A JL582BP46

23、1B JL901B P405C P502AP403A JL701B Q704 DTA124ES Q451 DTA114ES Q702TA7291S 1 2 3 4 5 6 7 8 9 X701 CST4.00MGW D912 MTZJ12C D913 MTZJ12C D745 MTZJ5.1B D705 MTZJ5.6B D707 MTZJ5.1B Q714 DTC144ES Q912 DTC123JS Q703 DTC144ES RL901 RL901 D918 GP104003E D706 D919 D702 D701 D704 D708 D722 D703 D911 RBV402 D3S

24、BA30 P901 P901 P901 AC230-240V/50HZ P901AP901AP901A F901 1.6A/125V F901 1.6A/125V F902 T2AL250V F904 T2.5AL250V F903 T2.5AL250V F901 Q701 HD404316-E30H 27 28 29 30 34 35 39 44 905/90910 AVCC15 AVSS6 CE43 CLK40 DATA42 DIRECT14 GND5 HP-IN13 INPMUTE26 KEYIN9 LAT41 MUTELED20 NC22 POFF17 21 POWER225 PROT

25、ECT36 REMIN18 RESET2 RIIN12 RIOUT11 SBASS131 SBASS232 SBASS333 SBASSLEDA37 SBASSLEDB38 SELIN17 SELIN28 SP-RELAY19 TEST1 VCC16 VOLDOWN24 VOLUP23 X13 X24 L506 L502 L504 L501 L505 L503 JL581C JL581A P405B P582 P584 R562 0.22*2 (2W) R561 0.22*2 (2W) C917 330/16 C916 330/16 C922 10/16 C919 47/16 C516 10/

26、16 C515 10/16 C703 100/6.3 C701 0.1/5.5 C914 3300/35 C915 3300/35 C920 2200/16 C708 2.2/50 C322 10/16 C321 10/16 C451 2.2/50 C452 2.2/50 C711 1/50 Q533 2SA992 Q706 2SA933S-R Q526 2SA1726 Q518 2SA992 Q520 2SA965 Q5252SA1726 Q517 2SA992 Q519 2SA965 Q530 2SC1740S Q528 2SC3421 Q527 2SC3421 Q529 2SC1740S

27、 Q705 2SC1740S-R Q532 2SC1845 Q522 2SC2235 Q524 2SC4512 Q516 2SC1845 Q531 2SC1845 Q523 2SC4512 Q521 2SC2235 Q515 2SC1845 P311A P306 C951 0.01 C951 0.01 C309 101 C582 471 C581 471 C951 0.01 C921 223Z C918 103J C923 223Z C913 104J C912 104J C517 473 C704 223Z C707 223Z C533 223Z C702 474 C518 473 C532

28、 223Z C710 223Z C709 223Z C531 223Z R916 0.47 (1/2W) R916 0.47 (1/2W) R554 2.2(1/2W) R552 2.2 (1/2W) R551 2.2 (1/2W) R353 1M R916 0.47 (1/2W) R543 100 (1/2W) R550 15 (1/2W) R582 10K R581 680 R556 82 (1/2W) R555 82 (1/2W) R351 2.2K R354 1M R352 2.2K R308 1M R307 1M R306 330 R305 330 R304 1M R303 1M R

29、302 330 R301 330 R316 1M R315 1M R314 330 R313 330 R312 1M R311 1M R310 2.2K R309 2.2K R324 1M R323 1M R322 330 R321 330 R320 1M R319 1M R318 2.2K R317 2.2K R572 220 R568 1.8K R570 1.2K R574 220 R571 220 R567 1.8K R569 1.2K R573 220 R593 10 (1/2W) R595 10 (1/2W) R328 1M R332 1M R331 1M R327 1M R330

30、330 R326 330 R329 330 R325 330 R560 10 (1/2W) R601 1K R583 10K R565 8.2 (1/2W) R745 1K R738 3.3K R718 100K R719 100K R740 10K R739 22K R610 10K R705 22K R914 270 (1/2W) R915 220 (1/2W) R913 220 (1/2W) R912 270 (1/2W) R917 10 (1/2W) R708 2.2K R709 1K R707 220K R706 47K R471 2.2K R472 220K R336 1M R33

31、5 1M R334 2.2K R333 2.2K R340 1M R339 1M R338 330 R337 330 R714 68K R716 12K R715 68K R717 22K R596 10 (1/2W) R608 10K R566 8.2 (1/2W) R602 1K R606 820 R604 680 R564 4.7 (1/2W) R546 100 (1/2W) R558 10 (1/2W) R548 15 (1/2W) R544 100 (1/2W) R594 10 (1/2W) R742 100K R736 100K R701 1M R710 3.3K R7114.7K

32、 R7351K R7341K R7331K R605 820 R607 10K R603 680 R563 4.7 (1/2W) R553 2.2 (1/2W) R559 10 (1/2W) R549 15 (1/2W) R545 100 (1/2W) R547 15 (1/2W) R557 10(1/2W) P305 P301 P302 P303 P304 Q301 TC9273N-010 10 11 1217 18 19 20 21 22 23 24 25 26 27 CD3 CDR-P2 CK15 DATA16GND13 L/DVD5 MD-P7 MD-R6 ST14 T-P9 T-R8

33、 TU4 VDD 28VEE1 UJJ NAETC-6639 NAPS-6633 NPT-1374J /60Hz AC100V/50Hz T901 UDT NAETC-6639 AC120V/60Hz NAPS-6633 NPT-1374D T901 +B5 -B2 +B2 +B4 +B3 -B1 +B1 NAETC-6640 UPT T800mAL250V R L SPEAKERS CDR/PC NAETC-6636 D918 Acoustic Presence AMP&VR UPT UJJ,UDT NAETC-6639 ONE TIME ONLY R742 R712,R713,R718,R

34、719 USE NO USE PARTS NUMBER C301-C304,C307,C308 C311-C316,C319,C320 C581,C582 NPT-1374P NAPS-6633 T901 TO NADIS-6634 TO NADIS-6634 TO NADIS-6634 TO NADIS-6634 TO NAAF-6631 TO NAAF-6631 TO NAAF-6632 TO NAAF-6632 TO NAAF-6631 NAETC-6637 NADG-6630 LINE/DVD TUNER MD REC REC PLAY PLAY RIGHT LEFT RIGHT LE

35、FT RIGHT LEFT CD LEFT LEFT RIGHT RIGHT LEFT RIGHT RIGHT LEFT IN OUT PROCESSOR * +B1 +B1 MUTING S.BASS1 S.BASS2 S.BASS3 POWER2 R L E NF-R NF-L POWER2 E E L L R R E E E R R L L +B2 -B2 * * -B1 +B1 HP-IN DIRECT KEYIN MUTELED +5.6V E REMIN LED A LED B +5.6V E SELIN2 SELIN1 CLK LAT DATA Lch E Rch SUBWOOF

36、ER PREOUT L-OUT R-OUT E * RI P311B P311B TAPE RIGHT LEFT RIGHT LEFT RIGHT LEFT RIGHT LEFT PLAY REC * E -B1 -B1 BY MARKARE CRITICAL FOR SAFETYIDENTIFIED NOTE THE COMPONENTS REPLACE ONLY WITHPARTNUMBERSPECIFIED. . .VOLTAGE (MEASURED WITH VOLTMETER) ISDC VOLTAGE. (NO INPUT SIGNAL) .ALL PNP TRANSISTORS

37、ARE EQUIVALENT .ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED. .ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED. .ELECTROLYTIC CAPACITORS ( )ARE INF/WV. .ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED. EX) 030 3pF 330 33pF 331 330pF u ALL RESISTORS ARE IN O

38、HMS 1/4WATTS UNLESS OTHERWISE NOTED. .THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS. EX)PRINTING SIDE CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT. . . TO 2SA1015-GR UNLESS OTHERWISE NOTED. 333 0.033uF A 1 2 3 4 5 BCDEFG A-905TX SCHEMATIC DIAGRAM-2 U3 U2 PREAMPLIFIER CIRCUIT PC BOAR

39、D ACOUSTIC CIRCUIT PC BOARD U5 DISPLAY CIRCUIT PC BOARD -19.1 -23.4 -24.0 -23.4 -13.0 -6.9 -13.0 -6.9 -19.1 -19.7 -0.7 24.123.5 22.923.5 24.1 23.5 22.923.5 -0.7 -24.0 -19.7 S401(1/2) S401(2/2) P401B P501B JL702A P405A D503 MTZJ5.6B D504 MTZJ5.6B JL501A JL501B C420 104 C416 393 C424 153 C423 153 C415

40、 393 C417 474 C419 104 C418 474 C410 104 C409 104 Q414 2SK246 Q413 2SK246 Q409 2SK246 Q407 2SK246 Q410 2SK246 Q408 2SK246 Q406 2SK246 Q405 2SK246 Q411 2SK246 Q412 2SK246 Q402 NJM2068L-D Q403 NJM2068L-D Q402 NJM2068L-D Q403 NJM2068L-D Q404 NJM2068D-D Q404 NJM2068D-D Q401 NJM4565D-D Q401 NJM4565D-D S7

41、02 S701 P403B P502B JL701A P583 Q711 DTA114ES Q712 DTA114ES D720 SPR-39MVW Q418 RN1241 Q416 RN1241 Q417 RN1241 Q415 RN1241 Q708 DTC114ES Q710 DTC124ES Q709 DTC124ES JL582AP461A R458R458 R461 250KW U701 REMSENS D402 D502 D501 D746 D410 D409 D403 D405 D404 D406 D401 D408 D407 D710 D709 D721 SLR-332VR

42、D711 SLR-332VR D723 SEL2E10C D716 SLR-332DU D714 SLR-332DU D717 SLR-332DU D715 SLR-332DU D713 SLR-332DU D712 SLR-332DU Q70774HC595 D 14 LC 12 OE 13 QA 15 QB1 QC2 QD3 QE4 QF5 QG6 QH7RES 10 SC 11 SQH9 VDD 16 VSS8 R437(2/2) 100KW R437(1/2) 100KW R438(2/2) 100KW R438(1/2) 100KW C509 220/6.3 C718 10/16 C

43、519 100/50 C520 100/50 C502 22/50 C522 100/50 C746 100/6.3 C715 10/16 C714 10/16 C514 10/50 C513 10/50 C512 10/16 C521 100/50 C501 22/50 C511 10/16 C426 10/16 C425 10/16 C412 2.2/50 C411 2.2/50 C429 10/16 C430 10/16 C407 47/50 C408 47/50 C510 220/6.3 C404 47/50 C403 47/50 C717 10/16 Q509 2SA992 Q507

44、 2SA992 Q511 2SA992 Q508 2SA992 Q510 2SA992 Q512 2SA992 Q505 2SC1740S Q501 2SC1845 Q503 2SC1845 Q513 2SC1845 Q502 2SC1845 Q506 2SC1740S Q504 2SC1845 Q514 2SC1845 C722 103Z C508 2P C723 103Z C503 101 C504 101 C724 223Z C713 223Z C721 103Z C507 2P C505 101J C421 822 C422 822 C427 153 C428 153 C414 224

45、 C413 224 C506 101J C406 102J C405 102J C716 223Z R579 820 R513 3.3K R514 3.3K R533 82 (1/4W) R529 1.2K (1/2W) R522 22K R521 22K R731 100K R730 100K R502 56K R525 820 (1/2W) R598 1.2K (1/2W) R597 1.2K (1/2W) R450 100K R446 1M R460 10K R459 10K R721 10K R746 10K R744 560 R741 100K R504 1K R503 1K R59

46、0 33 R589 33 R578 56K R520 100K R457 100K R456 100K R455 100K R743 100K R727 330 R726 390 R577 56K R517 470 R527 820 (1/2W) R523 820 (1/2W) R501 56K R519 100K R515 2.7K R509 330 R505 1.8K R507 1.8K R511 330 R537 18K R535 18K R531 82 (1/4W) R453 220K R451 1K R454 220K R452 1K R518 470 R528 820 (1/2W)

47、 R442 1K R440 1M R441 1K R439 1M R434 680 R427 1.8K R425 1M R423 4.7K R421 220K R433 680 R429 1M R435 100K R431 1M R426 1M R428 1.8K R422 220K R424 4.7K R4301M R436 100K R432 1M R414 1M R413 1M R449 100K R445 1M R415 1M R419 180K R447 1.2K R443 1M R448 1.2K R444 1M R416 1M R418 680 R420 180K R417 68

48、0 R580 820 R530 1.2K (1/2W) R526 820 (1/2W) R524 820 (1/2W) R516 2.7K R506 1.8K R510 330 R512 330 R508 1.8K R538 18K R536 18K R532 82 (1/4W) R534 82 (1/4W) R412 4.7K R410 220K R408 3.3K R406 3.3K R411 4.7K R409 220K R407 3.3K R405 3.3K R402 330 R401 330 R729 3.3K R728 3.3K R724 150 R403 100K R404 10

49、0K R585 180 R586 180 R587 180 R588 180 R723 560 R722 270 TONE DIRECT SOURCE DIRECT INPUT SELECTOR RED GRN 2 31 L-2(CDR) L-1/DVD TO NADG-6630 TO NADG-6630 TO NADG-6630 TO NADG-6630 TO NADG-6630 TO NADG-6630 TO NADG-6630 TO NAAF-6632 TO NADIS-6634 TO NADG-6630 TO NADG-6630 NADIS-6634 NAETC-6635 NAAF-6631 NAAF-6632 DIRECT POWER2 MUTE PHONES TD RN RO RB E LB LO LN TD RN RB E LB LO LN RO +B2 -B2 SBASS1 POWER2 R E R L L E E E NF-E NF-E R E R L L L R NF-L NF-R ST-BYTAPEMD CD TUNER HP-IN VOLU