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 MA-362 Audioaccess Twelve Channel Amplifier The Audioaccess MA-362 Twelve Channel Amplifier represents a high value approach while providing twel

2、ve 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 virtually any in-wall loudspeaker to room filling volume. Power into 4 Ohms is even more imp

3、ressive 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. After a series of careful evaluations and tests, Madrigal has chosen to imple- ment a conservat

4、ive 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 capable of delivering over 200 watts, much higher power than the rated 50 watts per chan- nel. F

5、or example, the output transistors for each channel can handle up to 12 amps. At rated power, the MA-362 is drawing only about 3 amps of current per channel, ensuring its reliable performance. Control Capabilities Each pair of channels is controlled by a Trigger Source Selector, a three-position swi

6、tch that selects signal sensing, voltage trigger input or link (to the trigger signal of the zone to the immediate left) as the source for muting control within each individual zone. A two position Signal Link Selector, is also provided and is used to link a zone to the Signal Input connector of the

7、 zone to its left. Installation Flexibility Ease of installation, a hallmark of all Audioaccess products is maintained in the new MA-362. An external speaker termi- nation board can be ordered in advance to allow the installing dealer to “pre-wire” all of the loudspeakers in the system before the am

8、plifier is delivered for final installa- tion. Final hook up consists of plugging the speaker termination board into a slot in the rear panel of the amplifier. Summary The MA-362 features, performance and reliability make it the perfect amplifier choice for a wide variety of multi-room audio system

9、applications. Simply Ingenious RadioFans.CN A Harman International Company Audioaccess Madrigal Audio Laboratories, Inc. P.O.Box 781 Middletown, CT 06457-0781 Internet: Fax: 860.346.15402002 Madrigal Audio Laboratories, Inc. 20202AA SS/MA-362 Specifications L Rack mountable chassis L Discrete amplif

10、ier design for improved sound quality L Signal Input Connector: six dual RCA jacks, one per two channel L Four position switch to select Stereo, Bridged Right, Bridged Left, or mono operation for each zone L Independent level controls for each amp channel L Trigger Input, euro-style connector, accep

11、ts 3 to 24V AC or DC, to “unmute” amp channels in the zone L Trigger Source Selector: three position switch to select signal sensing, voltage trigger input or link (to the trigger signal of the zone to the immediate left) to control muting in the zone. L Plug-in Speaker Termination Board, a snap for

12、 advance installations (available separately, not included with the amplifier) L Signal Link Selector: two position switch to link a zone to the signal input connector of the zone to its left (excluding zone 1) L Power Switch on Front panel L Bi-color LED Power Indicator Features L Number of Channel

13、s: 12, configured as 6 left/right pairs (zones) L Power Output (Unbridged): 50W 8, 75W 4, 20 - 20k Hz, All Channels Driven L Power Output (Bridged): 150W 8, 20 - 20k Hz, All Channels Driven L THD+Noise: 0.05%, at rated power, 20 - 20k Hz L IMD: 100dB unweighted (ref: Rated Power), unbridged into 8 L

14、 Crosstalk: -70 dB (ref: Maximum Output) between any two channels (no audible crosstalk) L Protection: Short Circuit, Over Current, DC, Thermal L Muting: Turn on, Turn off, Signal Sensing, and Triggered per zone L Input impedance: 24k L Input Sensitivity: 1.0 Vrms (with input trim at minimum attenua

15、tion) L Input Level Trim Range: 20dB L Gain: 26dB Dimensions and weight: L Height: 7 (178 mm) (4 rack 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 dimensio

16、ns are subject to change. Audioaccess TI-501 Speaker Termination Board (Sold separately) RadioFans.CN FEATURES The Audioaccess 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

17、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 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 requ

18、ired. Cool operation is ensured with a design incorporating heat sinks, flow through ventilation and low-noise fans. After 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

19、quality and long component life. Power for each channel is delivered by a pair of high current output transistors capable 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

20、-362 draws 2.5 amps of current, ensuring ample safe operating area headroom and reliable performance. Zone Muting Control 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 immediat

21、e left). Unique Input Bussing A two position Signal Link switch is also provided for each zone. This allows assignment 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 Fl

22、exibility Ease of installation, a hallmark of all Audioaccess products is maintained in the new MA-362. An external speaker 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 ter

23、mination board onto the rear panel of the amplifier. Summary The MA-362 features, performance and reliability make it the 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

24、 (Unbridged): 50W 812, 75W 412, 20 - 20k Hz, All Channels Driven Power Output (Bridged): 150W 812, 20 - 20k Hz, All Channels 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 chann

25、els (no audible crosstalk) Protection: Short Circuit, Over Current, DC, Thermal Muting: Turn on, Turn off, Signal Sensing, 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:

26、 Height: 7 (178 mm) (4 rack spaces, not including feet) Width front panel: 19 (483 mm), Width chassis: 17 1/16 (450 mm) 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

27、 parts lists may contain some part numbers that are not valid, or No Longer Available. Descriptions and Reference Designators, 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 List Parts No.De

28、scriptionQtyDesignator 92-V1003ASSY PCB- PX1275 MAIN AMP PCB6KIT 11-3/CQ203SPFUSE CLIP CQ-203SP FOR 5MM FUSE24EAF1,F2 ADB-KBPC602DIODE BRIDGE KBPC602 200V 6A6EAD1 AIC-TL071IC TL071(TI)12EAU3,U4 AIC-TL072IC TL072(JRC-NJM)6EAU2 ARL-02-R002RELAY 24V DPDT TRIH-24VDC-SB-2CM6EAK1 ATR-2SB649ATR.2SB649A12EA

29、Q13,14 ATR-2SB817ETR.B817E/SANKEN A1492)2EAQ17,18 ATR-2SD1047ETR.D1047E/SANKEN C38562EAQ15,16 ATR-2SD669ATR.2SD669A12EAQ11,12 CN1-L25002-010CNTR MALE L 2.5mm 2P EH A2502WR212EACN208B,GND CN1-L25003-010CNTR MALE L 2.5mm 3P EH A2502WR26EACN16A CN1-L50803-001CNTR WAFER L 5.08mm 3P(5081-WR)6EACN15 CN5-O

30、T7007M-02-G 2P header6EACN100 CNA-RMC003CNTR MALE 1P L 6.3 PIN(G20)24EACN11A-14A ECE-050V688M-HPCAP ELE 50V 6800uF +-20% 22*51 10512EAC41,42 ELC-02-7001COIL CHK 2uH +-10% L-R2U12EAL5,L6 ERB-102K152JRES MO 1W K 1K5 +-5% 15mm12EAR33,34 ERB-102K4R7JRES MO 1W K 4R7 +-5% 15mm24EAR47,48,49,50 ERB-202K122J

31、-SRES MO 2W K 1K2 +-5% 15mm 12EAR85,86 ERB-202PR10JRES MO 2W P 0.1 +-5%24EAR39,40,105, 106 ERB-251K101JRES MO 1/4W K 100 +-5%6EAR93 ERB-251K222JRES MO 1/4W K 2K2 +-5%12EAR23,24 ERB-251K331JRES MO 1/4W K 330 +-5%12EAR37,38 ERB-251K470JRES MO 1/4W K 47 +-5%36EAR19,20,25,26 ,29,30 ERB-251K471JRES MO 1/

32、4W K 470 +-5%30EAR17,18,35,36 ,84 ERB-251K681JRES MO 1/4W K 680 +-5%12EAR27,28 ERV-S06-501B01VR SEMI ST S 6MMD 500B12EAVR3,VR4 FUS-07-6301SFUSE 5*20mm T6.3A/250V UTE12EAF1,F2 TRL-7002THERMAL PROTECTOR 17AM024A56EAS3 WAS-R1068WIRE ASY #28 2547 2P 200MM EH ?/G6EACN7B(R-CH) WAS-R1069WIRE ASY #24 2468 3

33、P 100MM EH6EACN8B WAS-R1070WIRE ASY #28 2547 2P 150MM EH GRY6EACN9B(L-CH) WAS-R1071WIRE ASY #24 2468 6P 100MM EH6EACN10B 92-V1004AASSY PCB-VAC1004A PX1275 I/O PCB1KIT AIC-LF353IC OP LF353N NS (DIP)3EAU1 AIC-4N25IC OPTOCOUPLER 4N253EAU5 CN5-OT058CNTR SINGLE ROW L 3P6EACN2 ECQ-100V104JCAP MPP 100V 0.1

34、u +-5%3EAC53,54 ECE-025T106M-SKCAP ELE 25V 10uF +-20% 4*7 105C6EAC3,4 ECE-050T225M-SKCAP ELE 50V 2.2uF +-20% 4*7 105C3EAC51 JK3-S02-R002JACK RCA S 2P 0860B-302-531?3EAJK1 SWS-R007SW SLIDE 2P2T SS001-P022BQb-PA62EAS1 SWS-R008SW SLIDE 2P3T SS016-P223MA-PB63EAS4 SWS-R009SW SLIDE 4P4T SS001-P244Ojb-PA63

35、EAS2 VRR-R023VR ROT 10KA RD0971110046-11-15KQ6EAVR1,VR2 TML-R0001Mini T BLOCK HD515V-2P BLK3EACN5 TML-R0002Mini T BLOCK HD515H-2P BLK3EACN5 CN1-L25002-010CNTR MALE L 2.5mm 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 A2502WR

36、23EACN8A CN1-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 ONLY TU2-S9010-100TUBING S1 1mmD 10mm6PCSC53,54 WAS-R1067WIRE ASY #24 2468 2P 50MM EH1EACN6A(ZONE 3) WAS-R1072WIRE ASY #24 2468 3P 50MM EH1EACN1A(ZO

37、NE 3) 91-V1004ASSY PCB-VAC1004 I/O PCB AUTO INS1KIT 90-V1004Bare I/O PCB FR4 180*87*1.6MM PX-12751EA ECQ-100T104JCAP MPP 100V 0.1u +-5% TAP3EAC53,54 ECQ-100T331JCAP PPNM 100V 330P +-5% TAP6EAC1,2 ADD-1N4148*TAP52DIODE Sw/ 1N4148 TAPING 52MM3EAD17 ADD-1N4004*TAP52DIODE RECTI 1N4004 TAPING 52MM6EAD200

38、,201 ELC-08-R001COIL FER FB3560ST-6506EAL1,L2 ERC-121Y102JRES CF 1/8W Y 1K +-5%12EAR1,2,97,98 ERC-121Y122JRES CF 1/8W Y 1.2K +-5%6EAR7,8 ERC-121Y222JRES CF 1/8W Y 2K2 +-5%6EAR200,69 ERC-121Y223JRES CF 1/8W Y 22K +-5%9EAR70,71,72 ERC-121Y473JRES CF 1/8W Y 47K +-5%12EAR5,6,95,96 W00-22005WIRE TINNER C

39、OPPER #22 5MM3EAJP1.JP3,JP4 W00-22010WIRE TINNER COPPER #22 10MM3EAL3 92-V1004BASSY PCB-VAC1004B PX1275 I/O PCB1KIT AIC-LF353IC OP LF353N NS (DIP)3EAU1 AIC-4N25IC OPTOCOUPLER 4N253EAU5 CN5-OT058CNTR SINGLE ROW L 3P6EACN2 ECQ-100V104JCAP MPP 100V 0.1u +-5%3EAC53,54 ECE-025T106M-SKCAP ELE 25V 10uF +-2

40、0% 4*7 105C6EAC3,4 ECE-050T225M-SKCAP ELE 50V 2.2uF +-20% 4*7 105C3EAC51 JK3-S02-R002JACK RCA S 2P 0860B-302-531 Red/White3EAJK1 SWS-R007SW SLIDE 2P2T SS001-P022BQb-PA63EAS1 SWS-R008SW SLIDE 2P3T SS016-P223MA-PB63EAS4 SWS-R009SW SLIDE 4P4T SS001-P244Ojb-PA63EAS2 VRR-R023VR ROT 10KA RD0971110046-11-1

41、5KQ6EAVR1,VR2 TML-R0001Mini T BLOCK HD515V-2P BLK3EACN5 TML-R0002Mini T BLOCK HD515H-2P BLK3EACN5 CN1-L25002-010CNTR MALE L 2.5mm 2P EH A2502WR23EACN9A(L) CN1-L25002-011CNTR MALE L 2.5mm 2P EH RED3EACN7A(R) CN1-S25002-010CNTR MALE S 2.5mm 2P EH A2502WV21EACN6B(ZONE4) CN1-L25003-010CNTR MALE L 2.5mm

42、3P EH A2502WR23EACN8A CN1-S25003-010CNTR MALE S 2.5mm 3P EH A2502WV21EACN1B(ZONE4) CN1-L25006-010CNTR MALE L 2.5mm 6P EH A2502WR23EACN10A TU2-S9010-100TUBING S1 1mmD 10mm6PCSC53,54 91-V1004ASSY PCB-VAC1004 I/O PCB AUTO INS1KIT 90-V1004Bare I/O PCB FR4 180*87*1.6MM PX-12751EA ECQ-100T104JCAP MPP 100V

43、 0.1u +-5% TAP3EAC53,54 ECQ-100T331JCAP PPNM 100V 330P +-5% TAP6EAC1,2 ADD-1N4148*TAP52DIODE Sw/ 1N4148 TAPING 52MM3EAD17 ADD-1N4004*TAP52DIODE RECTI 1N4004 TAPING 52MM6EAD200,201 ELC-08-R001COIL FER FB3560ST-6506EAL1,L2 ERC-121Y102JRES CF 1/8W Y 1K +-5%12EAR1,2,97,98 ERC-121Y122JRES CF 1/8W Y 1.2K

44、+-5%6EAR7,8 ERC-121Y222JRES CF 1/8W Y 2K2 +-5%6EAR200,69 ERC-121Y223JRES CF 1/8W Y 22K +-5%9EAR70,71,72 ERC-121Y473JRES CF 1/8W Y 47K +-5%12EAR5,6,95,96 W00-22005WIRE TINNER COPPER #22 5MM3EAJP1.JP3,JP4 W00-22010WIRE TINNER COPPER #22 10MM3EAL3 92-V1005ASSY PCB-VAC1005 PX1275 STB PCB1KIT 90-V1005STB

45、 PCB FR4 190*66*1.6MM PX-12751EA TML-R0003MOLEX 15-24-7240(42385) HEADER1EACN12 TML-R0008TML BLOCK 12P EK950V-12P-BK2EAP1-P4,P5-P8 RM07P0019INSULATOR FR700+9448 66*46.5*0.7 B1EA 92-V1006ASSY PCB-VAC1006 PX1275 AC PCB1KIT 90-V1006AC PCB FR4 181.2*63.3*1.6MM PX-1271EA ADD-1N4004*TAP52DIODE RECTI 1N400

46、4 TAPING 52MM1EAD101 ADD-1N4148*TAP52DIODE Sw/ 1N4148 TAPING 52MM4EAD103,104,107 ,108 ADZ-UZ4-3BMDIODE ZENER UZ-4.3BM 1/2W 4.1V-4.52EAD102,105 ATR-BF422TR BF422 TAPING1EAQ101 ECE-050T476M-KMCAP ELE 50V 47uF +-20% 105C 6.3*111EAC104 ECW-275V472KX-CAP HQX 0.0047uF/275V P=10MM1EAC202 ECW-400V472MCAP Y-

47、SUPPRESSOR 400V 4700pF +-20%1EAC203 ERC-251Y103JRES CF 1/4W Y 10K +-5%1EAR100 ERC-251Y223JRES CF 1/4W Y 22K +-5%1EAR103 ERB-202K122JRES MO 2W K 1K2 +-5% 20mm1EAR104 ERB-202K152JRES MO 2W K 1K5 +-5% 20mm1EAR101 ELC-09-R002HCOIL CM-MODE 0.75mH E-7243H RING C1EAL201 11-3/CQ203SPFUSE CLIP CQ-203SP FOR 5

48、MM FUSE8EAF201-204 FUS-07-4001SFUSE 5*20mm T4A/250V UTE4EAF201-204 CN1-L50802-001CNTR WAFER L 5.08mm 2P(5081-WR)7EACN211B,212B, 213A,230_1,230_2,115_1,115_2 CN1-L50803-001CNTR WAFER L 5.08mm 3P(5081-WR)2EACN200_1,200_ 2 CN1-S50802-001CNTR WAFER S 5.08mm 2P(5081-WR)2EACN211A,212A WAS-R1075WIRE ASY 2P

49、 #24 2468 350MM EH1EACN208A-ZONE 3 CN208B WAS-R1076WIRE ASY 2P #24 2468 400MM EH1EACN209A-ZONE 2 CN208B SWP-R003SW PW PUSH TV-8 8212 CHILY1EAS201 51-LM0615050NTC THERMIXTOR LM06150502EART101,102 ARL-02-R001RELAY 24V SPDT TRIH-24VDC-SB-1CE1EAK201 92-V1007ASSY PCB-VAC1007 PX1275 FAN PCB1KIT 90-V1007FAN PCB CEM-1 44*84*1.6MM PX-12751EA ATR-BC337-40TR BC337-401EAQ304 ATR-BC556BTR BC556B TAPING4EAQ301-303,305 ADZ-UZ12BMDIODE ZENER UZ-12BM 12V1EAD301 ADD-1N4004*TAP52DIODE RECTI 1N4004 TAPING 52MM2EAD