Marantz-MA9S2-pwr-sm 维修电路原理图.pdf

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1、MA-9S2Please use this service manual with referring to the user guide ( D.F.U. ) without fail.ServiceManualMA-9S2 /F N/K1G/N1G/U1GPart no. 90M339J855010First Issue 2006.09MZMonaural Power Amplifi erTABLE OF CONTENTSSECTION PAGE 1. TECHNICAL SPECIFICATIONS . 1 2. CAUTION . 1 3. ALIGNMENTS . 2 4. BLOC

2、K DIAGRAM . 4 5. WIRING DIAGRAM . 5 6. SCHEMATIC DIAGRAM . 7 7. PARTS LOCATION .11 8. EXPLODED VIEW AND PARTS LIST . 23 9. ELECTRICAL PARTS LIST . 27MA-9S2MA-9S2METER OFFOFFONpower on/offmonaural power amplifier ma-9s2power on/offmonaural power amplifier ma-9s2BALANCEDUNBALANCED-2INPUTSELECTOR1Radio

3、Fans.CN 收音机爱 好者资料库MARANTZ DESIGN AND SERVICEUsing superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound.Only original MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifi cations for which it is famous. Part

4、s for your MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax. In both cases, the correct part number has to be specifi ed. The following information must be supplied to eliminate delays in processing

5、your order : 1. Complete address 2. Complete part numbers and quantities required 3. Description of parts 4. Model number for which part is required 5. Way of shipment 6. Signature : any order form or Fax. must be signed, otherwise such part order will be considered as null and void.SHOCK, FIRE HAZA

6、RD SERVICE TEST : CAUTION : After servicing this appliance and prior to returning to customer, measure the resistance between either primary AC cord connector pins ( with unit NOT connected to AC mains and its Power switch ON ), and the face or Front Panel of product and controls and chassis bottom.

7、 Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied, and verifi ed before it is return to the user/customer. Ref. UL Standard No. 6500.In case of diffi culties, do not hesitate to contact the Technical Department at above mentioned

8、 address. 060607MZUSAMARANTZ AMERICA, INC100 CORPORATE DRIVEMAHWAH, NEW JERSEY 07430USAEUROPE / TRADINGMARANTZ EUROPE B.V.P. O. BOX 8744, BUILDING SILVERPOINTBEEMDSTRAAT 11, 5653 MA EINDHOVENTHE NETHERLANDSPHONE : +31 - 40 - 2507844FAX: +31 - 40 - 2507860AUSTRALIAQualiFi Pty Ltd,24 LIONEL ROAD,MT. W

9、AVERLEY VIC 3149AUSTRALIAPHONE : +61 - (0)3 - 9543 - 1522FAX: +61 - (0)3 - 9543 - 3677NEW ZEALANDWILDASH AUDIO SYSTEMS NZ14 MALVERN ROAD MT ALBERTAUCKLAND NEW ZEALANDPHONE : +64 - 9 - 8451958FAX: +64 - 9 - 8463554THAILANDMRZ STANDARD CO., LTD746 - 754 MAHACHAI ROAD.,WANGBURAPAPIROM, PHRANAKORN,BANGK

10、OK, 10200 THAILANDPHONE : +66 - 2 - 222 9181FAX: +66 - 2 - 224 6795TAIWANPAI- YUING CO., LTD.6 TH FL NO, 148 SUNG KIANG ROAD,TAIPEI, 10429, TAIWAN R.O.C.PHONE : +886 - 2 - 25221304FAX: +886 - 2 - 25630415MALAYSIAWO KEE HONG ELECTRONICS SDN. BHD.2ND FLOOR BANGUNAN INFINITE CENTRELOT 1, JALAN 13/6, 46

11、200 PETALING JAYASELANGOR DARUL EHSAN, MALAYSIAPHONE : +60 - 3 - 7954 8088FAX: +60 - 3 - 7954 7088KOREAMARANTZ KOREA CO., LTD.ROOM 604, ELECTRO OFFICE, 16-58,HANGGANG-RO 3GA, YONGSAN-KU,SEOUL, 140-013, KOREAPHONE : +82 - 2 - 323 - 2155FAX: +82 - 2 - 323 - 2154SINGAPOREWO KEE HONG DISTRIBUTION PTE LT

12、DNo.1 JALAN KILANG TIMOR#08-03 PACIFIC TECH CENTRESINGAPORE 159303PHONE : +65 6376 0338FAX: +65 6376 0166CANADAMARANTZ CANADA INC.5-505 APPLE CREEK BLVD.MARKHAM, ONTARIO L3R 5B1CANADAPHONE : 905 - 415 - 9292FAX: 905 - 475 - 4159JAPAND&M BUILDING, 2-1 NISSHIN-CHO,KAWASAKI-KU, KAWASAKI-SHI,KANAGAWA, 2

13、10-8569 JAPAND&M Holdings Inc.CHINAMARANTZ SHANGHAI TRADING LTD.ROOM.506 SHANGHAI LIGHT INDUSTRY MANSION1578 NANJING (WEST) ROAD SHANGHAICHINATEL: 021 - 6248 - 1064FAX: 021 - 6248 - 3565RadioFans.CN 收音机爱 好者资料库11. TECHNICAL SPECIFICATIONSDIMENSIONS2. CAUTIONThe layout of this amplifier is well concer

14、ned for sound quality.1. When screws and washers are removed, those parts must be set to the same places.2. When wires are removed, the wires must be installed in the same roots, same places.3. Do not hold the side panel (001D/002D) and the bracket (915G) to move the unit when the unit is disassembl

15、ed.Rated power output (20 Hz to 20 kHz) .300 W (8 load) .600 W (4 load)Total harmonic distortion (20 Hz to 20 kHz, 8 load) . 0.01 %Output bandwidth (8 load, 0.05 %) F .5 Hz to 55 kHzFrequency response (1W, 8 load) .3 Hz to 150 kHz (+0 / -3 dB) Damping factor (20 Hz to 20 kHz, 8 load) . 200Inout sens

16、itivity / Inout impedance .1.7 V / 20 k (BALANCED) .1.7 V / 20 k (UNBALANCED)S/N (IHF A network, input shorted) . 123 dB (BALANCED) .123 dB (UNBALANCED)Level of voltage amplification F . 29 dB (BALANCED) F .29 dB (UNBALANCED)Attenuation . 0, -3, -6, -9, -12, - dBSupply voltage /F .100 V AC, 50 / 60

17、Hz /K .220 V AC, 50 / 60 Hz /N .AC 230V 50Hz /U .AC 120V 60HzPower consumption /F .450 W /K/N/U .500W 4 , 600 W driven .1200 WDimensions Width . 459 mm Height . 198 mm Depth . 451 mmWeight . 37.4 kg2. 注意当機音質考慮。1. 類取外場合、元位置取付。2. 類取外場合配線、元通戻。3. 当機分解状態移動、 (001D, 002D) 及 (915G) 持。18459819845120Unit : mm

18、23. ALIGNMENTSAdjustment ProcedureSet the power voltage to rated voltage for this adjustment.DC Offset Voltage Adjustment1. Before turning on power, set the attenuator switch (S201) at , and turn the variable resisters R691 and R692 on the PWB (P691) counterclockwise to the end. Insert digital volta

19、ge meters between the SPEAKERS1 + terminal on the rear panel and the GND terminal of C001/C002, and between the SPEAKERS1 terminal on the rear panel and the GND terminal of C001/C002.2. After the all preparation in Step 1 is done, turn on power. Just after the speaker relays turning on, make the adj

20、ustment to set the offset voltages of the SPEAKERS1 + terminal and the SPEAKERS1 terminal to 0V 20mV. Also, the difference between the offset voltages of the SPEAKERS1 + terminal and the SPEAKERS 1 terminal must be within 3mV. Offset voltage between the SPEAKERS1 + terminal and GND Adjust the variab

21、le resisters R507 on the PWB P501 so that the desired value is obtained. Offset voltage between the SPEAKERS1 terminal and GND Adjust the variable resisters R508 on the PWB P501 so that the desired value is obtained.Idling Current Adjustment1. After DC Offset Voltage Adjustment is completed, adjust

22、the idling current with the variable resisters R691 and R692 on the PWB (P691). The test point uses the 2pin connectors J675 and J677 on the PWB (P671).2. Connect a digital voltage meter in between the 1 pin and the 2 pin of J675 and in between the 1 pin and the 2 pin of J671 each. No. 2 terminal is

23、 + of DC range.3. With seeing the digital voltage meter, turn the variable resisters clockwise slowly to adjust the idling current. Idling current adjustment with R691 R691 is to adjust the idling current for the power transistor(s) on the upper side of the heat sink. Turn R691 clockwise to increase

24、 the idling current. The voltage measured by the digital voltage meter connected to J675 will increase. Idling current adjustment with R692 R692 is to adjust the idling current for the power transistor(s) on the lower side of the heat sink. Turn R692 clockwise to increase the idling current. The vol

25、tage measured by the digital voltage meter connected to J677 will increase.3. ALIGNMENTS調整手順調整時必電源電圧定格電圧合。DC電圧調整1. 電源投入前ATTENUATOR（S201）-、基板（P691）半固定抵抗R691R692反時計方向絞切状態（電流）。 SPEAKERS-1端子C001/C002GND端子間SPEAKERS-1-端子C001/C002GND端子間接続。2. 上記設定後電源投入ON直後、SPEAKERS-1端子SPEAKERS-1端子0V20mV調整。 、端子電圧端子電圧差3mV以内調整

26、。 SPEAKERS-1端子GND間電圧 基板（P501）半固定抵抗（R507）調整。 SPEAKERS-1端子GND間電圧 基板（P501）半固定抵抗（R508）調整。電流調整1. DC電圧調整終了後、基板（P691）半固定抵抗R691R692電流調整。 基板（P671）2pinJ675J677使用。2. J6751番端子2番端子間、J671番端子2番端子間接続。2番端子DC側。3. 電圧値監視半固定抵抗時計方向回電流調整。 半固定抵抗R691調整 R691上部配置電流調整。 R691時計方向回J675接続電圧値増加電流増加。 半固定抵抗R692調整 R692下部配置電流調整。 R692時計

27、方向回J677接続電圧値増加電流増加。34. The voltage of the idling current will be 10mV(50mA) for each. The current value is stabilized by about 10mV (50mA) in about 30 minutes after turn on power. Refer to the following graph for the idling current and time after turn on power.5. 3 minutes after turn on power, adjus

28、t the idling current to 8mV (40mA), after 10 minutes, it checks becoming the value of about 10mV (50mA). Meter Adjustment1. Connect an oscillator to the input terminal UNBALANCED-1 and connect an AC voltage meter to the speaker output terminals. ATTENUATOR is set to 0dB and no load is connected to t

29、he speaker output. Turn the variable resister R917 on the PWB (P801) counterclockwise to the end.2. Turn on power and adjust output power (output frequency 1kHz) of the oscillator to set the speaker output voltage to 15.5V.3. When the speaker output voltage becomes 15.5V, adjust the variable resisto

30、r R917 on the PWB P801 to set the meter -10dB. (Output voltage 15.5V means 30W for 8, 60W for 4.)4. Assuming this point as 0db, decrease the output power of the oscillator like 0dB 20dB 30dB 40dB, the meter will show the corresponding4. 電流設定値10mV（50mA）。 電源投入後約30分約10mV（50mA）安定。 電源投入後電流時間経過推移下記参照。5. 調

31、整、電源投入3分後8mV（40mA）調整、10分後10mV（50mA）前後値確認。調整1. 入力端子UNBALANCED-1発振器接続、出力端子AC接続。 ATTENUATOR0dB、出力無負荷。P801基板半固定抵抗R917反時計方向絞切状態。2. 電源ON出力電圧15.5V発振器出力調整（周波数1kHz）。3. 出力電圧15.5V、-10dB指P801基板半固定抵抗R917調整。（出力電圧15.5V8時30W、4時60W電圧。）4. 状態-10dB発振器出力0dB -20dB -30dB - 40dB順減衰、針板表示値示。METER8 OHM LOAD4 OHM LOAD0 dB300 W

32、600 W-10 dB 30 W 60 W-20 dB 3 W 6 W-30 dB 0.3 W 0.6 W-40 dB 0.03 W 0.06 W051015202530352(10)4(20)6(30)8(40)10(50)12(60)mV(mA)(minutes)Idling Current 44. BLOCK DIAGRAM123BALANCED12I/VSPEAKEROUT50V PROTECTUNBALANCEDATTATTI/VI/VI/V-B-A+A+BPROTECTLOGAMPINPUTSELECTORSOFTSTART45VOUTPUT STAGE 24V+-+-+DRIVE

33、 STAGE56P691IDLING ADJP681N POWER TR (POWER DRIVER)P671H POWER TR (POWER DRIVER)P801POWER SUPPLY(& METER DRIVE)P951LEVELE METER(& LED)P981R LEDP971L LEDP941LEVEL ON/OFF SW(METER SW)P401MODE SEL(INPUT SEL)INPUT ATT SWP501INPUT AMP(VOLTAGE AMP.)P851AC INPUT(SOFT START)P871POWER SWL001POWERTRANSL002CHO

34、KECOILSPK 1SPK 2AC INP601MAIN AMP(POWER BUFFER AMP.)P991C001C002POSISTERJ008J009J010J011J601(9P)J401(4P)J402(2P)J903(2P)J802(3P)J803(3P)J901(7P)J804(3P)J902(5P)J808(4P)J809(5P)J307(3P)J308(3P)J305(7P)J619(3P)J620(3P)J602(5P)J611(4P)J612(4P)J608(2P)J607(2P)J306(2P)J671(4P)J673(3P)J621(3P)J674(3P)J676

35、(3P)J669(2P)J694(3P)J693(3P)J692(2P)J681(4P)J683(3P)J684(3P)J682(3P)J951(6P)J981(5P)J971(5P)W009W008J801(3P)P201J502(9P)J501(5P)J205(4P)J204(5P)W010W004W006W002W033W031(BLU)W030(BLU)W029(RED)W028(RED)J685(3P)J622(3P)J672(3P)W015W003W007W007W014W991W026W027W024W022W020W018W016W019W017W021W023W025W034

36、J941(5P)J942(6P)J871(2P)J852(2P)J854(3P)J851(3P)W032J678(1P)J679(1P)J688(1P)J689(1P)J505(1P)J807(1P)L003L004J203(2P)J202(2P)J201(3P)W013W012W011J007J006J005BALANCEDUN BAL 1UN BAL 2INPUTJ2081P)6. WIRING DIAGRAM87-0.70.00.00.01.20.00.01.33.055.453.724.223.823.754.322.522.521.921.321.320.700-55.4-53.7-

37、54.3-24.2-23.8-23.7-20.7-21.3-21.3-22.5-22.5-21.9000055.955.453.553.453.052.352.40.0354.854.20.60-0.03-0.61.7-1.7-52.3-52.451.7-51.7-53.0-53.5-53.4-54.8-54.2-55.4-55.91.2-1.20048.500-48.5-55.955.9-1.7-0.51.148.51.20.6000-0.6000-1.2-48.512343621512213123(JUMPER)123436215123123123123184359101212312343

38、6215123123123123123436215123(JUMPER)121231843591012184359101212123123HSS8112123123121231234(JUMPER)12312312147121181091212341234123455W5W5W5W5W5W1235W5W5W5W5W5W1231231278541W567812349123456712312341212312312312343214321123123123123123123123123123123123123123121212121231231231231231231231231231231231

39、23123123123123412312312341234123451234131652431234567123123123123(N.C)12100KC3100.112(N.C)R991521231231231236123143123123123436215436215123123123123123123123123123123123123123123123123123123127854123456789123456789123456789123456789(JUMPER)(N.C)132312(JUMPER)(JUMPER)123123123123121212312312312312312

40、3123123123123123123123231231123231123231123213213123451234512345123451843591012123123123W12312312121212121212Q631R210Q506C605J005J007Q630R334R524D502R531R519R637D504J010J201C603Q503D611C201Q626D614J009R520Q516R619R522J011R529C611R635W013D613C202D612D618R658R527Q625R535R330R514C610C302L203R624C614R66

41、0Q627Q305R626R511C613C606R638Q504R518D616R203C609D302R521C301C510Q621C203R657Q622Q518C604R516R528Q623Q517R632R333D617R506R207Q505Q515R628R517R340R603R525J006R633R501R342D301R625R205Q306L201R630L202C607R532D501R621R513R504R620R526D615C506D609W012Q632R659C608R515R634D610D503R629C612Q628R631D305R627W01

42、1Q629R661C509R622R329R623R530R505R341C504Q624C501R512J202R502Q302J205C502C503R339R636R523R503R662J620J008Q301J203R220R219S201R212R215R217R211R218R216R213R214R538J628J627R601J630J629J607J611J612R321R325R314R326J632J602J631R310R306R302R304R312R308J622R307R301R309R311R305R303J621J619L302R361R351R349C30

43、7R354C308C306R348Q309C305C309R353R355R356R352R359R360J305J633J634W025W021J674J673J679J671J678J672Q671R671Q673R673R675Q675R677Q677R679C671Q672R672Q678R678R676Q676R674Q674W023J693W019J691W017D691R695R693R696D692J692J694R694W024J684Q684Q683Q686Q685Q682R684R685R682R681R683Q687R689C681R687Q681R686Q688R68

44、8W022J683J689J681J688J682R209R350W020S201C205R345R346D203D202R208R536R537J504J642J685W034J676R692R691C601R323D303R343R347J306R358D304R344R316W991R357D623D619D624D620D625D621D626D622R319R315R317R313R318R322R320R324R206R204R201R202J208DH04RH05JH01DH03JH01DH01QH03RH03QH02DH02RH02RH06QH05QH04RH04JH01QH0

45、6RH01JH01JH01RH07JH01QH01C204Q511Q513Q501Q502Q514Q512Q617Q619Q618Q620D607R611Q603Q601R617Q605Q609R613R605D601Q611D603R615R607D605R609Q607R610D602Q606R614Q610Q612D608D604Q604Q602R606D606R608Q608R612R618R616L301W015 W015J502J601C505C511C513R541R543D507D505R539R547R545R549R544R548C512R540D506C514D508R5

46、42R550R546R602R604C602R507R508R510R509R641R643R645R642R644R646R648R647R649R651R653R655R650R652R654R656R640R639R533R534C508C507Q303R327Q307R331R335C303R337Q304R328Q308R332R336C304R338J608W016Q507Q509Q510Q508Q520Q522Q521Q519Q613Q615Q616Q614Q527Q523D509R551R555Q525Q529D511R553R557Q526Q530D512R554R558Q5

47、24Q528R552R556D510Q679Q689J204J501W014W014L501D201J308W027C515C517C518C516J505J504C311R362J307W026J677J675C520C519C615C617C616C618U301U302U303U304U305C313C312C314Q501 - Q5064.7K680p6.8k1K68k68100/25v(N.C)4.7V68k6801M3.32K470/80v684.7V(N.C)1k3.32K1k22k6810.010.47/63v330470/80v223301.54k470/80v680p684

48、64100k0.011M0.47/63V680p(N.C)1k100/25V4643.32K226K6.8K100100k120k46422k46.4226K100k22.6k330100k100.011K68068122668046.4220/25v220.01464226K10470/80v226K120k22680p68022k3303.32K10022.6k220/25v220P1.54k100k220P220/25v22K68226226.81k6.81k6.81k3.83k3.32k6.81k3.32k3.83k5.62k5.62k1M22.6k1k2.2k1K2.2k0.10.1

49、0.10.10.10.10.10.10.10.10.10.122220k47k0.133k47/25V0.0147k47/25V0.47/50V68k3.3K8.2K10k68.1k68.1k471010102201/4W0.01471010104.7K2.2K4.7K2.2K1010474710220 1/4w0.011010106.8K100K0.168.1k68.1k6.8K1001M2.2k2.2k1K22.6k22K22.6k1K(N.C)(N.C)(N.C)(N.C)1K1k1k1k1K1K1K1K(JP)(JP)(JP)(JP)22-OUT+B224702222-B470+OUT

50、+68K-220p1022.610100k22.656056056010100k5601022.622.6220/25v100/25v100/25v4.71504.71k1501k1501k100/25v4.7100/25v4.71k15022.6k4.7k4.7k150150121121100121121100100100100100100100100100100100100k100k22/25v22/25v2.2k22k6.8K0.47/63V47k2.2k22k6.8k0.47/63v47k1k47k1k47k1k47k1k47k0.010.010.010.01-0.0391022/25