HarmanKardon-MA362-pwr-sm维修电路原理图.pdf

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1、 AUDIOACCESS MA-362 TWELVE CHANNEL AMPLIFIER PRELIMINARY SERVICE MANUAL Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797 RadioFans.CN 收音机爱 好者资料库MA-362AudioaccessTwelveChannelAThe Audioaccess MA-362 TwelveChannel Amplifier represents a high valueapproach while providing twelve ch

2、annelsof clean amplifier power for multi-roomsystem applications. Power to SpareWith a power rating of 50 Watts perchannel at 8 Ohms from 20Hz to 20kHzwith less than .05% THD, the MA-362will drive virtually any in-wall loudspeakerto room filling volume. Power into 4Ohms is even more impressive at 75

3、Watts per channel. All channels may bebridged if additional power is required.Cool operation is ensured with a designincorporating heat sinks, flow throughventilation and low-noise fans.After a series of careful evaluationsand tests, Madrigal has chosen to imple-ment a conservative and proven design

4、philosophy with the MA-362 with theadded benefit of improved sound qualityand long component life. Power for each channel is delivered by a pair of highcurrent output transistors capable ofdelivering over 200 watts, much higherpower than the rated 50 watts per chan-nel. For example, the output trans

5、istorsfor each channel can handle up to 12amps. At rated power, the MA-362 isdrawing only about 3 amps of current perchannel, ensuring its reliable performance. Control CapabilitiesEach pair of channels is controlled by aTrigger Source Selector, a three-positionswitch that selects signal sensing, vo

6、ltagetrigger input or link (to the trigger signal of the zone to the immediate left) as thesource for muting control within eachindividual zone. A two position Signal LinkSelector, is also provided and is used to link a zone to the Signal Inputconnector of the zone to its left. Installation Flexibil

7、ityEase of installation, a hallmark of all Audioaccess products is maintained in thenew MA-362. An external speaker termi-nation board can be ordered in advanceto allow the installing dealer to “pre-wire”all of the loudspeakers in the system beforethe amplifier is delivered for final installa-tion.

8、Final hook up consists of pluggingthe speaker termination board into a slotin the rear panel of the amplifier.SummaryThe MA-362 features, performanceand reliability make it the perfectamplifier choice for a wide variety ofmulti-room audio system applications.Simply IngeniousRadioFans.CN 收音机爱 好者资料库A

9、Harman International CompanyAudioaccessMadrigal Audio Laboratories, Inc.P.O.Box 781Middletown, CT 06457-0781Internet: Fax: 860.346.15402002 Madrigal Audio Laboratories, Inc.20202AA SS/MA-362SpecificationsL Rack mountable chassisL Discrete amplifier design for improved sound qualityL Signal Input Con

10、nector: six dual RCA jacks,one per two channelL Four position switch to select Stereo, BridgedRight, Bridged Left, or mono operation foreach zoneL Independent level controls for each amp channelL Trigger Input, euro-style connector, accepts 3to 24V AC or DC, to “unmute” amp channelsin the zoneL Trig

11、ger Source Selector: three position switchto select signal sensing, voltage trigger inputor link (to the trigger signal of the zone to theimmediate left) to control muting in the zone.L Plug-in Speaker Termination Board, a snap foradvance installations (available separately, notincluded with the amp

12、lifier)L Signal Link Selector: two position switch tolink a zone to the signal input connector ofthe zone to its left (excluding zone 1)L Power Switch on Front panelL Bi-color LED Power IndicatorFeaturesL Number of Channels: 12, configured as 6left/right pairs (zones)L Power Output (Unbridged): 50W

13、8, 75W 4, 20 - 20k Hz, All Channels DrivenL Power Output (Bridged): 150W 8, 20 - 20k Hz, All Channels DrivenL THD+Noise: 0.05%, at rated power, 20 - 20k HzL IMD: 100dB unweighted (ref: Rated Power),unbridged into 8L Crosstalk: -70 dB (ref: Maximum Output)between any two channels (no audiblecrosstalk

14、)L Protection: Short Circuit, Over Current, DC,ThermalL Muting: Turn on, Turn off, Signal Sensing, andTriggered per zoneL Input impedance: 24kL Input Sensitivity: 1.0 Vrms (with input trim atminimum attenuation)L Input Level Trim Range: 20dBL Gain: 26dBDimensions and weight:L Height: 7 (178 mm)(4 ra

15、ck spaces, not including feet)L Width front panel: 19 (483 mm),Width chassis: 171116 (450 mm)L Depth: 171116 (450 mm)L Weight: 60 lb (27.2 kg) (without carton)Features, specifications and dimensions are subject to change.Audioaccess TI-501 Speaker Termination Board (Sold separately)FEATURES The Audi

16、oaccess MA-362 Twelve Channel Amplifier represents a high value approach while providing twelve channels of clean amplifier power for multi-room system applications. Power to Spare With a power rating of 50 Watts per channel at 8 Ohms from 20Hz to 20kHz with less than .05% THD, the MA-362 will drive

17、 virtually any in-wall loudspeaker to room filling volume. Power into 4 Ohms is even more impressive at 75 Watts per channel. All channels may be bridged if additional power is required. Cool operation is ensured with a design incorporating heat sinks, flow through ventilation and low-noise fans. Af

18、ter a series of careful evaluations and tests, Madrigal has chosen to implement a conservative and proven design philosophy with the MA-362 with the added benefit of improved sound quality and long component life. Power for each channel is delivered by a pair of high current output transistors capab

19、le of delivering over 200 watts, much higher power than the rated 50 watts per channel. The output transistors for each channel can handle 12 amps of current. At rated power, the MA-362 draws 2.5 amps of current, ensuring ample safe operating area headroom and reliable performance. Zone Muting Contr

20、ol Each pair of channels is controlled by a three-position Trigger Source switch to select signal sensing, voltage trigger or link (to the trigger signal of the zone to the immediate left). Unique Input Bussing A two position Signal Link switch is also provided for each zone. This allows assignment

21、of direct input to the zone, or to share the source utilized by the zone to its left, eliminating the need for Y-cords to distribute common inputs to multiple zones. Installation Flexibility Ease of installation, a hallmark of all Audioaccess products is maintained in the new MA-362. An external spe

22、aker termination board can be ordered in advance to allow termination of loudspeakers before the amplifier is delivered for final installation. At final, simply plug the speaker termination board onto the rear panel of the amplifier. Summary The MA-362 features, performance and reliability make it t

23、he perfect amplifier choice for a wide variety of multi-room audio system applications. Specifications: Number of Channels: 12, configured as 6 left/right pairs (zones) Power Output (Unbridged): 50W 812, 75W 412, 20 - 20k Hz, All Channels Driven Power Output (Bridged): 150W 812, 20 - 20k Hz, All Cha

24、nnels Driven THD+Noise: 0.05%, at rated power, 20 - 20k Hz IMD: 100dB unweighted (ref: Rated Power), unbridged into 812 Crosstalk: -70 dB (ref: Maximum Output) between any two channels (no audible crosstalk) Protection: Short Circuit, Over Current, DC, Thermal Muting: Turn on, Turn off, Signal Sensi

25、ng, and Triggered per zone Input impedance: 24k12 Input Sensitivity: 1.0 Vrms (with input trim at minimum attenuation) Input Level Trim Range: 20dB Gain: 26dB Dimensions and weight: Height: 7 (178 mm) (4 rack spaces, not including feet) Width front panel: 19 (483 mm), Width chassis: 17 1/16 (450 mm)

26、 Depth: 17 1/16 (450 mm). Weight: 60 lb (27.2 kg) (without carton) Features, specifications and dimensions are subject to change. MA362 Electrical/Mechanical Parts Lists Note: These parts lists may contain some part numbers that are not valid, or No Longer Available. Descriptions and Reference Desig

27、nators, when included, should aid technicians in part substitution. If necessary, call the Parts department at 1-516-496-3400 ext. 6553 for assistance. MA-362 Parts ListParts No.DescriptionQtyDesignator92-V1003ASSY PCB- PX1275 MAIN AMP PCB6KIT11-3/CQ203SPFUSE CLIP CQ-203SP FOR 5MM FUSE24EAF1,F2ADB-K

28、BPC602DIODE BRIDGE KBPC602 200V 6A6EAD1AIC-TL071IC TL071(TI)12EAU3,U4AIC-TL072IC TL072(JRC-NJM)6EAU2ARL-02-R002RELAY 24V DPDT TRIH-24VDC-SB-2CM6EAK1ATR-2SB649ATR.2SB649A12EAQ13,14ATR-2SB817ETR.B817E/SANKEN A1492)2EAQ17,18ATR-2SD1047ETR.D1047E/SANKEN C38562EAQ15,16ATR-2SD669ATR.2SD669A12EAQ11,12CN1-L

29、25002-010CNTR MALE L 2.5mm 2P EH A2502WR212EACN208B,GNDCN1-L25003-010CNTR MALE L 2.5mm 3P EH A2502WR26EACN16ACN1-L50803-001CNTR WAFER L 5.08mm 3P(5081-WR)6EACN15CN5-OT7007M-02-G 2P header6EACN100CNA-RMC003CNTR MALE 1P L 6.3 PIN(G20)24EACN11A-14AECE-050V688M-HPCAP ELE 50V 6800uF +-20% 22*51 10512EAC4

30、1,42ELC-02-7001COIL CHK 2uH +-10% L-R2U12EAL5,L6ERB-102K152JRES MO 1W K 1K5 +-5% 15mm12EAR33,34ERB-102K4R7JRES MO 1W K 4R7 +-5% 15mm24EAR47,48,49,50ERB-202K122J-SRES MO 2W K 1K2 +-5% 15mm 12EAR85,86ERB-202PR10JRES MO 2W P 0.1 +-5%24EAR39,40,105, 106ERB-251K101JRES MO 1/4W K 100 +-5%6EAR93ERB-251K222

31、JRES MO 1/4W K 2K2 +-5%12EAR23,24ERB-251K331JRES MO 1/4W K 330 +-5%12EAR37,38ERB-251K470JRES MO 1/4W K 47 +-5%36EAR19,20,25,26 ,29,30ERB-251K471JRES MO 1/4W K 470 +-5%30EAR17,18,35,36 ,84ERB-251K681JRES MO 1/4W K 680 +-5%12EAR27,28ERV-S06-501B01VR SEMI ST S 6MMD 500B12EAVR3,VR4FUS-07-6301SFUSE 5*20m

32、m T6.3A/250V UTE12EAF1,F2TRL-7002THERMAL PROTECTOR 17AM024A56EAS3WAS-R1068WIRE ASY #28 2547 2P 200MM EH ?/G6EACN7B(R-CH)WAS-R1069WIRE ASY #24 2468 3P 100MM EH6EACN8BWAS-R1070WIRE ASY #28 2547 2P 150MM EH GRY6EACN9B(L-CH)WAS-R1071WIRE ASY #24 2468 6P 100MM EH6EACN10B92-V1004AASSY PCB-VAC1004A PX1275

33、I/O PCB1KITAIC-LF353IC OP LF353N NS (DIP)3EAU1AIC-4N25IC OPTOCOUPLER 4N253EAU5CN5-OT058CNTR SINGLE ROW L 3P6EACN2ECQ-100V104JCAP MPP 100V 0.1u +-5%3EAC53,54ECE-025T106M-SKCAP ELE 25V 10uF +-20% 4*7 105C6EAC3,4ECE-050T225M-SKCAP ELE 50V 2.2uF +-20% 4*7 105C3EAC51JK3-S02-R002JACK RCA S 2P 0860B-302-53

34、1?3EAJK1SWS-R007SW SLIDE 2P2T SS001-P022BQb-PA62EAS1SWS-R008SW SLIDE 2P3T SS016-P223MA-PB63EAS4SWS-R009SW SLIDE 4P4T SS001-P244Ojb-PA63EAS2VRR-R023VR ROT 10KA RD0971110046-11-15KQ6EAVR1,VR2TML-R0001Mini T BLOCK HD515V-2P BLK3EACN5TML-R0002Mini T BLOCK HD515H-2P BLK3EACN5CN1-L25002-010CNTR MALE L 2.5

35、mm 2P EH A2502WR23EACN9A(L-CH)CN1-L25002-011CNTR MALE L 2.5mm 2P EH RED3EACN7A(R-CH)CN1-L25003-010CNTR MALE L 2.5mm 3P EH A2502WR23EACN8ACN1-L25006-010CNTR MALE L 2.5mm 6P EH A2502WR22EACN10A(ZONE 1 /3)CN1-S25006-010CNTR MALE S 2.5mm 6P EH A2502WV2-61EACN10A(Rear Solder) ZONE 2 ONLYTU2-S9010-100TUBI

36、NG S1 1mmD 10mm6PCSC53,54WAS-R1067WIRE ASY #24 2468 2P 50MM EH1EACN6A(ZONE 3)WAS-R1072WIRE ASY #24 2468 3P 50MM EH1EACN1A(ZONE 3)91-V1004ASSY PCB-VAC1004 I/O PCB AUTO INS1KIT90-V1004Bare I/O PCB FR4 180*87*1.6MM PX-12751EAECQ-100T104JCAP MPP 100V 0.1u +-5% TAP3EAC53,54ECQ-100T331JCAP PPNM 100V 330P

37、+-5% TAP6EAC1,2ADD-1N4148*TAP52DIODE Sw/ 1N4148 TAPING 52MM3EAD17ADD-1N4004*TAP52DIODE RECTI 1N4004 TAPING 52MM6EAD200,201ELC-08-R001COIL FER FB3560ST-6506EAL1,L2ERC-121Y102JRES CF 1/8W Y 1K +-5%12EAR1,2,97,98ERC-121Y122JRES CF 1/8W Y 1.2K +-5%6EAR7,8ERC-121Y222JRES CF 1/8W Y 2K2 +-5%6EAR200,69ERC-1

38、21Y223JRES CF 1/8W Y 22K +-5%9EAR70,71,72ERC-121Y473JRES CF 1/8W Y 47K +-5%12EAR5,6,95,96W00-22005WIRE TINNER COPPER #22 5MM3EAJP1.JP3,JP4W00-22010WIRE TINNER COPPER #22 10MM3EAL392-V1004BASSY PCB-VAC1004B PX1275 I/O PCB1KITAIC-LF353IC OP LF353N NS (DIP)3EAU1AIC-4N25IC OPTOCOUPLER 4N253EAU5CN5-OT058

39、CNTR SINGLE ROW L 3P6EACN2ECQ-100V104JCAP MPP 100V 0.1u +-5%3EAC53,54ECE-025T106M-SKCAP ELE 25V 10uF +-20% 4*7 105C6EAC3,4ECE-050T225M-SKCAP ELE 50V 2.2uF +-20% 4*7 105C3EAC51JK3-S02-R002JACK RCA S 2P 0860B-302-531 Red/White3EAJK1SWS-R007SW SLIDE 2P2T SS001-P022BQb-PA63EAS1SWS-R008SW SLIDE 2P3T SS01

40、6-P223MA-PB63EAS4SWS-R009SW SLIDE 4P4T SS001-P244Ojb-PA63EAS2VRR-R023VR ROT 10KA RD0971110046-11-15KQ6EAVR1,VR2TML-R0001Mini T BLOCK HD515V-2P BLK3EACN5TML-R0002Mini T BLOCK HD515H-2P BLK3EACN5CN1-L25002-010CNTR MALE L 2.5mm 2P EH A2502WR23EACN9A(L)CN1-L25002-011CNTR MALE L 2.5mm 2P EH RED3EACN7A(R)

41、CN1-S25002-010CNTR MALE S 2.5mm 2P EH A2502WV21EACN6B(ZONE4)CN1-L25003-010CNTR MALE L 2.5mm 3P EH A2502WR23EACN8ACN1-S25003-010CNTR MALE S 2.5mm 3P EH A2502WV21EACN1B(ZONE4)CN1-L25006-010CNTR MALE L 2.5mm 6P EH A2502WR23EACN10ATU2-S9010-100TUBING S1 1mmD 10mm6PCSC53,5491-V1004ASSY PCB-VAC1004 I/O PC

42、B AUTO INS1KIT90-V1004Bare I/O PCB FR4 180*87*1.6MM PX-12751EAECQ-100T104JCAP MPP 100V 0.1u +-5% TAP3EAC53,54ECQ-100T331JCAP PPNM 100V 330P +-5% TAP6EAC1,2ADD-1N4148*TAP52DIODE Sw/ 1N4148 TAPING 52MM3EAD17ADD-1N4004*TAP52DIODE RECTI 1N4004 TAPING 52MM6EAD200,201ELC-08-R001COIL FER FB3560ST-6506EAL1,

43、L2ERC-121Y102JRES CF 1/8W Y 1K +-5%12EAR1,2,97,98ERC-121Y122JRES CF 1/8W Y 1.2K +-5%6EAR7,8ERC-121Y222JRES CF 1/8W Y 2K2 +-5%6EAR200,69ERC-121Y223JRES CF 1/8W Y 22K +-5%9EAR70,71,72ERC-121Y473JRES CF 1/8W Y 47K +-5%12EAR5,6,95,96W00-22005WIRE TINNER COPPER #22 5MM3EAJP1.JP3,JP4W00-22010WIRE TINNER C

44、OPPER #22 10MM3EAL392-V1005ASSY PCB-VAC1005 PX1275 STB PCB1KIT90-V1005STB PCB FR4 190*66*1.6MM PX-12751EATML-R0003MOLEX 15-24-7240(42385) HEADER1EACN12TML-R0008TML BLOCK 12P EK950V-12P-BK2EAP1-P4,P5-P8RM07P0019INSULATOR FR700+9448 66*46.5*0.7 B1EA92-V1006ASSY PCB-VAC1006 PX1275 AC PCB1KIT90-V1006AC

45、PCB FR4 181.2*63.3*1.6MM PX-1271EAADD-1N4004*TAP52DIODE RECTI 1N4004 TAPING 52MM1EAD101ADD-1N4148*TAP52DIODE Sw/ 1N4148 TAPING 52MM4EAD103,104,107 ,108ADZ-UZ4-3BMDIODE ZENER UZ-4.3BM 1/2W 4.1V-4.52EAD102,105ATR-BF422TR BF422 TAPING1EAQ101ECE-050T476M-KMCAP ELE 50V 47uF +-20% 105C 6.3*111EAC104ECW-27

46、5V472KX-CAP HQX 0.0047uF/275V P=10MM1EAC202ECW-400V472MCAP Y-SUPPRESSOR 400V 4700pF +-20%1EAC203ERC-251Y103JRES CF 1/4W Y 10K +-5%1EAR100ERC-251Y223JRES CF 1/4W Y 22K +-5%1EAR103ERB-202K122JRES MO 2W K 1K2 +-5% 20mm1EAR104ERB-202K152JRES MO 2W K 1K5 +-5% 20mm1EAR101ELC-09-R002HCOIL CM-MODE 0.75mH E-

47、7243H RING C1EAL20111-3/CQ203SPFUSE CLIP CQ-203SP FOR 5MM FUSE8EAF201-204FUS-07-4001SFUSE 5*20mm T4A/250V UTE4EAF201-204CN1-L50802-001CNTR WAFER L 5.08mm 2P(5081-WR)7EACN211B,212B, 213A,230_1,230_2,115_1,115_2CN1-L50803-001CNTR WAFER L 5.08mm 3P(5081-WR)2EACN200_1,200_ 2CN1-S50802-001CNTR WAFER S 5.

48、08mm 2P(5081-WR)2EACN211A,212AWAS-R1075WIRE ASY 2P #24 2468 350MM EH1EACN208A-ZONE 3 CN208BWAS-R1076WIRE ASY 2P #24 2468 400MM EH1EACN209A-ZONE 2 CN208BSWP-R003SW PW PUSH TV-8 8212 CHILY1EAS20151-LM0615050NTC THERMIXTOR LM06150502EART101,102ARL-02-R001RELAY 24V SPDT TRIH-24VDC-SB-1CE1EAK20192-V1007A

49、SSY PCB-VAC1007 PX1275 FAN PCB1KIT90-V1007FAN PCB CEM-1 44*84*1.6MM PX-12751EAATR-BC337-40TR BC337-401EAQ304ATR-BC556BTR BC556B TAPING4EAQ301-303,305ADZ-UZ12BMDIODE ZENER UZ-12BM 12V1EAD301ADD-1N4004*TAP52DIODE RECTI 1N4004 TAPING 52MM2EAD302,303ERB-202P101JRES MO 2W P 100 +-5%1EAR303ERB-202P470JRES

50、 MO 2W P 47 +-5%1EAR302ERC-121Y223JRES CF 1/8W Y 22K +-5%3EAR304,305,307ERC-121Y562JRES CF 1/8W Y 5.6K +-5%3EAR301,306,308ECE-025T107M-SKCAP ELE 25V 100U +-20% 8*7 105C1EAC301TRL-R004THERMALSTAR U-A HT1+FB5 NO 65C2EAS301,302CN1-S25002-010CNTR MALE S 2.5mm 2P EH A2502WV24EACN301,304A, 305A,306CN1-S25