Bryston BHA1电路图.pdf

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1、BHA-1 OWNERS MANUAL RadioFans.CN 收音机爱 好者资料库 IMPORTANT SAFETY INSTRUCTIONS The lightning flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of un-insulated “dangerous voltage “ within the products enclosure that may be of sufficient magnitude to

2、constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. 1. Read these instructions. 2. Keep these ins

3、tructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturers instructions. 8. Do not install near any heat sources such as radiators, heat reg

4、isters, stoves, or other apparatus (including amplifiers) that produce heat. 9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or

5、 the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit f

6、rom the appa- ratus. 11. Only use attachments/accessories specified by the manufacturer. 12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used use caution when moving the cart/apparatus combination to avoid injury

7、from tip-over. 13. Unplug this apparatus during lightning storms or when unused for long periods of time. 14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power- supply cord or plug is damaged, liquid has been spill

8、ed or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. DO NOT EXPOSE THIS EQUIPMENT TO DRIPPING OR SPLAS

9、HING AND ENSURE THAT NO OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, ARE PLACED ON THE EQUIPMENT. TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM THE AC MAINS, DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC RECEPTACLE. THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE. BRYSTON LIM

10、ITED WARRANTY Bryston analog audio products are warranted to be free from manufacturing defects for twenty (20) years from the original date of manufacture. The warranty includes parts and labour. Bryston Digital products and cables are warranted for five years from the original date of manufacture.

11、 The warranty includes parts and labour. Bryston products having motorized moving parts, excluding motorized volume controls, are warranted for three years from the original date of manufacture. The warranty includes parts and labour. Bryston will remedy the problem by repair or replacement, as we d

12、eem necessary, to restore the product to full performance. Bryston will pay return shipping costs for the full length of the specific products warranty. In the event of a defect or malfunction, contact Brystons repair centers for return authorization. Products must be returned using original packagi

13、ng material only. Packing material may be purchased from Bryston if necessary. This warranty is considered void if the defect, malfunction or failure of the product or any component part was caused by damage (not resulting from a defect or malfunction) or abuse while in the possession of the custome

14、r. Tampering by persons other than factory authorized service personnel or failure to fully comply with Bryston operating instructions voids the warranty. This warranty gives you specific legal rights and you may also have other rights which may vary from province to province and country to country.

15、 As of 2006-02-22 Bryston will only warranty Bryston products purchased through authorized Bryston dealers. Bryston products with a date code of 0608 or higher (date code format is “yyww”, where “yy” is the two least significant digits of the year and “ww” is the week of the year) must be accompanie

16、d by a copy of the bill-of-sale from a Bryston authorized dealer to qualify for warranty service. The warranty is transferable from the original owner to a subsequent owner as long as a copy of the bill-of-sale from the original authorized Bryston dealer accompanies the re-sale. The copy of the bill

17、 of sale to any subsequent owner need ONLY include the Name of the Bryston Authorized Dealer and the Model and Serial number of the Bryston product The warranty will only be honored in the country of the original purchase unless otherwise pre-authorized by Bryston. Postal address: P .O. BOX 2170, St

18、n. Main PETERBOROUGH, ONTARIO CANADA K9J 7Y4 Courier address: 677 NEAL DRIVE PETERBOROUGH, ONTARIO CANADA K9J 6X7 PHONE: 705-742-5325 FAX: 705-742-0882 E-mail: 79 COVENTRY ST., Suite 5 NEWPORT, VERMONT U.S.A. 05855-2100 PHONE: 802-334-1201 FAX: 802-334-6658 E-mail: BRYSTON SERVICE in CANADA:BRYSTON

19、SERVICE in the USA: contact your local distributor or CHECK OUR WEB SITE: E-MAIL BRYSTON DIRECTLY: FAX BRYSTON DIRECTLY: 01-705-742-0882 PHONE BRYSTON DIRECTLY: 01-705-742-5325 BRYSTON SERVICE outside Canada and the USA: RadioFans.CN 收音机爱 好者资料库 TABLE of CONTENTS Safety Instructions, Warranty and Con

20、tact Information .Opposite General Information .Page 1 Introduction General Description Installation not tinned. The Remote trigger input is non-polarized so either output wire can go to either input pin. Tighten wires with no more than 0.5Nm torque BHA-1 SPECIFICATIONS POWER OUTPUT: Maximum: 2 Watt

21、s per channel into 32 Ohms at 1% THD (continuous) Rated: 500 milliwatts per channel into 32 Ohms at .005% THD. INPUT IMPEDANCE: 10K ohms single ended (unbalanced) +15K/-5K ohms double ended (balanced) SENSITIVITY: HI (approx 20 dB) setting: 70mVin = 100 mWout into 50 ohms (500mVin = 5Vout) LO (appro

22、x 14 dB) setting: 140mVin = 100 mWout into 50 ohms (500mVin = 2.5Vout) DISTORTION: THD+noise: 0.005% 20 Hz to 20 kHz IMD: 103 dBv (with 20 Hz to 22 kHz band pass filter) FREQUENCY RESPONSE: 20 Hz to 20 kHz 0.1 dB. POWER BANDWIDTH: 1 Hz to over 100 kHz POWER CONSUMPTION: 50 Watts HEAT LOAD: 130 BTU/h

23、r DIMENSIONS: Maximum overall dimensions with C-series front panel & feet: 17” dress panel: 2.713” high & 11.1” deep (432mm 69mm 282mm) 19” dress panel: 2.713” high & 11.1” deep (483mm 69mm 282mm) Maximum overall dimensions with Rack mount panel & feet: 19” wide, 2.45” high & 11.1” deep (483mm 62.2m

24、m 282mm) Maximum overall dimensions with Rack mount panel but without feet: 19” wide, 2.45” high & 11.1” deep (483mm 62.2mm 282mm (See page 8 for more details) WEIGHT: unit alone: 11.7 lbs (5.3 kg) approx. with packaging 16.5 lbs (7.5kg) approx. BHA-1 OVERALL SCHEMATIC 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8

25、8 9 9 10 10 EE DD CC BB AA LTD P.O. BOX 2170, 677 NEAL DR. PETERBOROUGH, ON. CANADA K9J 7Y4 PHONE (705) 742-5325 FAX (705) 742-0882 WWW.BRYSTON.CA Date : File :Sheet :ofRev : Drawn : Title : BHP1 - HEADPHONES AMPLIFIER SEPT 2012ST 18 BHA1 ALL BOARDS R8 1WG 1J2 PCBPCB1 BHA1 ACIN R7 3P3 3P1 PCBPCB3 BH

26、A1 PSW PCB R7 3P2 WIRES 3G G3L 3SWA 3SWB6 7 M M2 12V3 EXT+3RLA 3RLB 3RLC + - ACAC 2BR1 + - AC AC 2BR2 1 2 3 2P3 2P1 L N 2CD10N 2CB10N 2CA10N 2CC10N 2CF10N 2CE10N 33V+ 33V- PCBPCB2 BHA1 TX AC SEL R7 RED VIO RED BLK ORN BRN WHT GRY YEL VIO BLU TF1 15V+ R2 G2 R1 V2 V1 2P2 2RA 120/240 2RB 100/220 2RC 10

27、0/120 2RD 120V 2RE 100V 2RF 220/240 + 2CM 2200u + 2CP 2200u 2CH10N 2CG10N + 2CK 2CJ 100N 2QA 2RH 1K5 12V+2P4 1L 1L1 1N 1G 2J1 7J3 BAL OUT L- R+ R- L+ 7J1 OUT L G8 7J2 OUT R 4 1 2 3 1 2 3 12 3 PCBPCB6 BHA1 XLR OUT R7 1 2 3 4 5 6 7 8 9 7P1 ECO 1278 - SEPT 24 2012 ADD RESISTOR 5RJ - 1K0 - RS-ERJ8ENF100

28、1V CHANGE RESISTOR 3RR FROM 47K5 TO 2K61 - RE-CRCW12062K61FKEA R7 - AUG 2012 ADD THERMAL SHUT DOWN CIRCUITRY- CHANGED SERIES OUT RESISTORS TO 2 OHMS ADD BAL OUT 3RJ 1K0 2DZ 12v M1 218000 M2 218002 M4 218097 M-B17 218003 M-S17 218004 M-B19 218005 M-S19 218006 M-TOP 271033.4 SHIPPING BOX BOT FOAM TOP

29、FOAM PACKING FOAM 3H1 90008 3H3 90008 3H2 90008 3H4 90008 2H1 90002 2H2 90002 2H3 90002 2H4 90002 3RK 1K5 3QT 100 3RE 20K0 ON3 EXT- RG 3LED fuse 1J1 CHASSIS WGY2 1 2 3 4 5 1 2 3 4 5 WH1 1 2 3 4 5 1 2 3 4 5 6 7 6 7 WH2 PWR SW EXT PWR ON RLY 120V-2A 240V-1A FUSE G2 3VR 100K 3G 3G 3RR 2K61 7J4 5CF100p

30、5RF 1K0 5RB 1K0 R10L 2K0 5SG 5J2 VRB VOL LEFT 5J1 R9L 100R R6L 49R9 R5L 4K99 R3L 49R9 R7L 4K99 C4L47p 5J3 R2L 4K99 5SIN 100K VRA VOL G QF1 +CF3 68u 2ZM 5.1V R1 100R + CA + CD + C15 2200u + CR2 22u + CR1 22u G +12V RL3C RL1B RL1A RL1C RL2C R4L 4K99 R8L 4K99 G 5J4 RIGHT 5J5 R9R 100R R2R 4K99 RL2B RL2A

31、 5RA 1K0 G CR3 100N CR4 100N 1R2 34K8 1R1 2K61 1R5 150R 1R7 499R 1R8 68R1 1R9 68R1 1R3 2K61 1R4 34K8 1R6 150R 1C147p 1C547p 1C4 6.8p 1C3100N 1C2 6.8p 1Q1 100 1Q6 100 1Q2 100 1Q5 200 1Q3 200 1Q4 200 1Q8 200 1Q7 100 1D2 1D31D1 1C8100N + 1C947u + 1C747u 1R11 100R 1R10 100R 1C6100N R5R 4K99 R7R 4K99 C3R

32、47p C4R47p RL3B R4R 4K99 R8R 4K99 RL3A G 2R2 34K8 2R1 2K61 2R5 150R 2R8 68R1 2R9 68R1 2R3 2K61 2R4 34K8 2R6 150R 2C147p2C547p 2C4 6.8p 2C3100N 2C2 6.8p 2Q1 100 2Q6 100 2Q2 100 2Q5 200 2Q3 200 2Q4 200 2Q8 200 2Q7 100 2D22D3 2D1 2C8100N + 2C947u 2R11 100R 2R10 100R 2C6100N C3L47p 3Q1 100 3Q2 100 3Q6 1

33、00 3Q5 200 3Q4 200 3Q3 200 3R10 500R 3R9 150R 3R3 2K61 3R4 34K8 3R12 5R11 3R13 5R11 3D2 3C3100N 3R1 2K61 3R2 34K8 3R8 150R 3C147p 3D1 3R19 100R 3R18 100R 3C5 47p 3C4 6.8p 3C26.8p 3Q9 MJD243 3Q10 MJD253 3C8100N 3C6100N + 3C747u + 3C947u G G 3RA 1K0 5Q1 100 5Q2 100 5Q6 100 5Q5 200 5Q4 200 5Q3 200 5R9

34、150R 5R3 2K61 5R4 34K8 5R12 5R11 5R13 5R11 5C3100N 5R1 2K61 5R2 34K8 5R8 150R 5C1 47p 5D1 5R19 100R 5R18 100R 5C5 47p 5C4 6.8p 5C2 6.8p 5Q9 MJD243 5Q10 MJD253 5C8 100N 5C6100N + 5C9 47u G 6CF100p 6RF 1K0 R10R 2K0 6RA 1K0 4Q1 100 4Q2 100 4Q6 100 4Q5 200 4Q4 200 4Q3 200 4R9 150R 4R3 2K61 4R4 34K8 4R12

35、 5R11 4R13 5R11 4D2 4C3100N 4R1 2K61 4R2 34K8 4R8 150R 4C147p 4D1 4R19 100R 4R18 100R 4C547p 4C4 6.8p 4C2 6.8p 4Q9 MJD243 4Q10 MJD253 4C8 100N 4C6100N G G 4RA 1K0 6Q1 100 6Q2 100 6Q6 100 6Q5 200 6Q4 200 6Q3 200 6R9 150R 6R3 2K61 6R4 34K8 6R12 5R11 6R13 5R11 6D2 6C3100N 6R1 2K61 6R2 34K8 6R8 150R 6C1

36、47p 6D1 6R19 100R 6R18 100R 6C547p 6C4 6.8p 6C2 6.8p 6Q9 MJD243 6Q10 MJD253 6C8 100N 6C6100N + 6C747u G G B1 B2 B3B4 B5 B6 B7 B8 B9 B10 B11B12 B13 -20B +20B + 5C747u + 2C7 47u + 4C747u + 6C947u + 4C947u +20D+20F +20C +20E -20D-20F -20E-20C -20A +20A 4RM 10K0 3OUT 4OUT6OUT 5OUT R3R 49R9 R6R 49R9 J8T

37、J8R J8S 2R7 499R 3_A 2_A 5H1 1560-OB 5H2 1560-OB 5H3 1560-OB FU1 FIDUCIAL 5H5 1560-OB 5H6 1560-OB 5H7 1560-OB 5H8 1560-OB 5H9 1560-OD 3R17 10R0 3RH 4K75 6RB 1K0 4RF 4K75 4RH 4K75 2_B 3_B 5H11 1560-OD 5H12 1560-OD LEFT VBB BAL R1L 4K99 C1L 270p C1R270p R1R 4K99 R2 49K9 3CF100p 4CF 100p LD5 S1G LD2 S1

38、G LD3 S1G RIGHT VBA BAL 4R14 5R11 4Q11 MJD243 4R15 5R11 4Q12 MJD253 3R14 5R11 3R15 5R11 3Q11 MJD243 3Q12 MJD253 6R14 5R11 6R15 5R11 6Q11 MJD243 6Q12 MJD253 5R14 5R11 5R15 5R11 5Q11 MJD243 5Q12 MJD253 1 2 3 4 5 6 7 8 9 5J6 G ac ac + - 5BR3 RG 100R CHASSIS PG1 EXT PWR UP 5J7 RL4B RL4A RL4C LD1 S1G LD4

39、 S1G FU2 FIDUCIAL FU3 FIDUCIAL PCBPCB5 BHA1 MB R8 GND ISO OPAMPS SUPPLIES RELAYS SUPPLY PWRUP MUTE 5P6 LD6 S1G 4D3 4Q7 100 4Q8 200 4R11 499R 6Q7 100 6Q8 200 6D3 6R11 499R 5Q7 100 5Q8 200 5D2 5R11 499R 3D3 3Q8 200 3R11 499R 3Q7 100 5R6 10K0 6R7 10K0 6C14 100p 6R6 10K0 6C13 100p 6CE100p G 6R17 10R0 6C

40、A 680p 4R7 10K0 4C14 100p 4R6 10K0 4C13 100p 4CE 100p G 4R17 10R0 4CA 680p 5D3 5R7 10K0 5C13 100p 5C14 100p G 5CE100p G 3CE 100p 3R6 10K0 3R7 10K0 3C13 100p 3C14 100p G G 3RF 4K75 3CA 680p 3C11 100N G 3C10 100N G 4C11 100N G 4C10 100N G 5C11 100N G 5C10 100N G 6C11 100N G 6C10 100N G 5R17 10R0 5CA 6

41、80p + + 4C15 4700u + + 6C15 4700u + + 5C15 4700u + + 3C15 4700u FU4 FIDUCIAL G INPUT BUFFERS POWER OP AMPS QR1 MJE15031 QR2MJE15030 DR2 DR1 +VB -VB +VA -VA +VA -VA +VA -VA +VA -VA +VB -VB +VB -VB +VB -VB RR1 1K5 RR2 1K5 + CG + CK + CR10 22u + CR9 22u CR12 100N CR11 100N QR3 MJE15031 QR4MJE15030 DR4

42、DR3 RR3 1K5 RR4 1K5 + CB 2200u + CE 2200u + CC + CF + CH 2200u + CL 2200u + CJ + CM RCA MINI BAL HI LOW GAIN INPUTS G 5R20 2R00 G 3R20 2R00 G 3RM 10K0 G G 5RM 10K0 4R20 2R00 G 6R20 2R00 G 6RM 10K0 G RL5C RL5A RL5B RL6A RL6B RL6C G 5P4 + - ACAC 5BR1 + 5CR 22u L0UT+ L0UT- R0UT- R0UT+ 1 2 3 BIAS3 1 2 3

43、 BIAS4 1 2 3 BIAS6 1 2 3 BIAS5 FU5 FIDUCIAL 5J8 5J9 R11R 49R9 R12R 49R9 L0UT+ L0UT- R0UT- R0UT+ R11L 49R9 R12L 49R9 RVL 20K0 RVR 20K0 Bias Adjust cold - set to 100mv - place cover on 1/2 hour - readjust to 250mv cover on bias adj bias adj bias adj bias adj 3CH100p 4CH100p 5QBMJD44 5QAMJD45 5RA2 4K99

44、 5IC1 5RA4 4K99 5RA1 1K0 5RA3 1K0ON 5R10 500R 6R10 500R +12V -V G +V V- G G LBW LVW RVW RBW LBH RBH T T2 T T3 T T4 V+ V- T 90C THERMAL SWITCHES T1 5QC 100 5RT 2K61 G5L WGY1 GRN/YL V+ G G G JM1 0R0 5CM 1000p 6CM 1000p 4CM 1000p 3CM 1000p JM2 0R0 4R10 500R 4RL2B 4RL1A PCBPCB4BHA1 MPS2 PSW R7 4RL2C 4RL

45、2A 4RL1B 4RL1C 12V4 ON4 4VR 50K 4H1 90008 MPS2 ONLY 4H3 90008 4H2 90008 4H4 90008 4RJ 1K50 4QA PN100 G4 4RE 4K99 4RK 1K0 G4L 4EXT+ 4EXT- RG 4LED G4 4SW PWR 4RR 20K0 4P2 5RJ 1K0 LD7 S1G R3 49K9 QF2 100 LD8 S1G LOGO BHA-1 HEADPHONE AMPLIFIER BHA-1 EXTERNAL DIMENSIONS There are no user serviceable parts inside the BHA-1. Please refer any servicing to qualified personnel. 300028-6-bha1-20130219 BRYSTON LTD., PETERBOROUGH, ONTARIO, CANADA