Acoustic-Research-A-06-Service-Manual 电路图 维修手册.pdf

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1、 TABLE OF CONTENTS Bias Adjustment. . 1 Schematic Diagram . 2 Wiring Diagram . 3 Disassembly Diagram . 4 Repair Parts List . 5 Specifications . s ., 1 Et EDYNE ACOUSTIC 330 Turnpike Street, Canton, Massachusetts 02021 , USA High Street, Houghton Regis, Dunstable, Bedfordshire LU5 5QJ, England RadioF

2、ans.CN 收音机爱 好者资料库 - . 0 I I f .,_ I ,a, Cfl I .Q. .a. .a. .: 11 :_: . -4 1 iSi!. =55:J Bias Adjustment Instruments: DC mllli-voltmeter Notes: Prior to Bias Adjustment, run about 5 minutes with rated output (8 ohm) and warm up Power Transistor and Heat Sink. Set Volume Control to Mininum. Coupllng St

3、ep Adjust Adjust for Plus Lead Minus Lead 1 TP3 TP1 VA601 DC milll-voltmeter reads 3.0mV 2 TP2 TP4 VA602 RadioFans.CN 收音机爱 好者资料库 I Schematic Diagram 0 0 -. 0 ,-,+;- PHONO E ! cu, (1 e, IO)P 47P -.A27 sn 2SA608 0406 .:. MM OM(.,._ _ . L.- -1-1-r- T )1- -c, r-.-+-i 0 PIO() R TMR C . , ,1000 0 3 L 9 ,

4、-3 ;i ., Q-. 2SC2602 - If ! i; R11i IOk -uv 2SC2602 , . 004 ,v s CUt COO IO)P c 1UK 19-K N5532N - AS2t I I K i CDAUX :-. - - - -i.r+_-_-_-_ -_-_ -., -.-+-r-_ 4 -+-+-+-t,t-, I 0 :c I IN TAPEl OUT L CH TAPE2 2 I I OUT tet-t-t-IRl.SISOllt lOW HOIK Tl1 CAAION R9SIORS . 2 CO/AUK VCR TAPE 11 / D I 1 I . .

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6、ESU7N iO 75110 11 S.k I 1.it 7S./t0 I . i5l - ltSU MIIN IN L (H X 0,S . l! Sil RS74 - V - I I I I )IY ACIO I . 251)600 06)i8631 0617 .,., I I I I I I - ,sw,o Ct20 IIY/UO INSTRUCTIONS FOR SERVICE PERSONNEL 11,0, C9 IIWIIOO D905 IHLOOS , E ov I I I I _J -, u - IJ. TO use ONLY REPLACEMENT PARTS THAT HA

7、VETHE CRITICAL CHARACTERISTICS RECOMMENDED BY MANUFACTURER. 2). TO MAKE LEAKAGE.CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. Y05A7PA8CDEFGHIJKLMNOPORSTUVWXVZ RN WHT ,.,. , . I.! Tln

8、t -1 TlUOAI l :i ,I . 3tulllll- -I-.-:-,. 11 YERSllf ,-mo, . A.C .lOV IT ;t ,t . 3 -UIIIL-i-1-,.,. L!: - ( CllV jrx:4587 .- - -PIOIS I r-9- RadioFans.CN 收音机爱 好者资料库 Wiring Diagram . l OU inter modulation distortion (60Hz:7kHz = 4: 1) no more than 0.030/o Continuous 1/2 Rated Power Output . total harm

9、onic distortion (20 to 20,000 Hz) no more than 0.02% inter modulation distortion (60Hz7kHz = 4: 1) 1 Watt/ch Power Output,8 ohms . . . total ,harmonic distortion (20 to 20,000 Hz) no more than 0.03% Output inter m.odulation distortion (60Hz:7kHz = 4: 1) no more than 0.03.ro Speaker . . . . . . . . .

10、 . . . . . . . . . . . . . . . . 8 ohm nominal Headphone . . . . . . . . . . . . . . . . . . . . . . 8 ohm nominal Damping Factor . 120 (1 kHz, 8 ohms) Input Sensltlvtty/lmpedance Phono (MM) . 2.SmV/47 Kohms Phono (MC) . 200V/100 ohms CD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150m

11、 V 120 Koh ms Tuner, Tape Monitor . 150mV/20 Kohms Overload Level (THO 0.5% 1 kHz) Phono (MM) . . 180mV Phono (MC) . . . . . . . . . . . . . . . . . . . . . . 15mV CD, Tuner, Tape Monitor . 5V Frequency Response Phono . . . . . . . . . . . . . . . . . . . . . . . . . . 20 to 20,000Hz 0.2dB (RIAA STD

12、) CD, Tuner, Tape Monitor . 20 to 20,000Hz + O.SdB -0.3dB Signal to Noise Ratio (IHF A Network) Phono (MM) . . . . . . . . . . . . . . . . . . . . . 80 dB Phono (MC) . . . . . . . . . . . . . . . . . . . . . . . . 70 dB CO, Tuner, Tape Monitor . . 90 dB Power Consumption . . . . . . . . . . . . . .

13、. . . 300 watts Dimensions (Overall) . . . . . . . . . . . . . . . . 430(W) x 88(H) x 356(0) 1615/te,. X 35/i2 X 14 1 /11 Weight (net) . . . . . . . . . . . . . . . . . . . . . . . . 9.8 kgs/21.56 lbs Specifications and design subject to possible modification without notice. Measured pursuant to the Federal Trade Commissions Trade Regulation Rule on Power Claims for Amplifiers (applicable to the U.S.A. only).