Acoustic-Research-A-04-Service-Manual 电路图 维修手册.pdf

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1、 TABLE OF CONTENTS Bias Adjustment . , . 1 Schematic Diagram . u 2 Wiring Diagram . 3 Disassembly Diagram . 4 Repair Parts List . 5 Specifications . 5 TELEDYNEACOUSTICnr-.; 330 Turnpike Street, Canton, Massachusetts 02021 , USA High Street, Houghton Regis, Dunstable, Bedfordshire LUS SQJ, England Ra

2、dioFans.CN 收音机爱 好者资料库 0 1 I I r,n M,YQ l! ID 0 !JI-! Bias Adjustment Instruments: DC milli-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. Coupling Step Adjust Adjust for Plus Lead Min

3、us Lead 1 TP3 TP1 VR601 DC milli-voltmeter reads 3.0mV 2 TP2 TP4 VR602 RadioFans.CN 收音机爱 好者资料库 Schematic Diagram NOTE i!RTS AIIO CIRCUll St.lBJfCT 10 CKAtt5ES FOR MPIOVEMEtUS WITHOUl PRIOR M:JllCf I I I l I I PHONO L 0 - I TUNER I co1Al/lC:ei-+-1-1-1-. L IN (F-+-1-H-t-, .lTll VCR IN c e,.-, r TUtlER

4、 CO/AUXce;.- R IN(.,_ _ .J l w;Ul VCRIN MU6 IK TH AF-146 - - 1(401 112 NE5532N I 2SA608 0,05 -i-;-,-11 ;c;ec1,:.,-.- + -I l I( ,. X - 7 1K I h 0 . o- .,. . -o- I * TX4S7 1 ., . ., - a lJ.JV 7K i 1(501 1/2 Clb CSOI NE t/2 S532N I S 2511 JI) (SO, 25H,7 ei C r )OP 1 (501 2/2 NE 1/2 5532N !i601( 10K lU

5、10K 1SC S36 ov 0801. /I. 2SA608 0805 . IN.(001 PO.rt i ! , _ _:;:.JI !Ol -,U 2$531 lJO 0902 2SC53 0806 ., JI ,., K 2SCSJS . MAIN IN OSOl i 1 LCH (.,_.,_if-t1+.;c-t! o., I (502 2/2 NJM45560 I I I JI _., i 2SA106 r,iil:;.! 0=- -:- RS)l 12 IK ., ,-1 N 0 ._r . t, ; 2SC536 0502 o I I PRE OUT L I PREOUT R

6、 I I I 7 UV E . WHT WHT I TB-13_6 _ _., 6. )V IOOMA U!M.P RESISTORS He TOC,.ER,.l,HCE tJHl.(5,$. Q1H(RWI$( H)f(O I -ILO OHM M-MEGA OHt-4 lit- M:l;fAl R$j$f()ff$ u, WA1 R!tU MftAl OXtDE frt.M RSit.tOM tJH MAAt .OW HOlSE TVPE Ci.R90N CAPACITORS -OW NOISE LECfR0lYIIC CAPJCnORS -. Mft. A.R ,n M c:ACnORS

7、 $ POI.YSIYREME PILM CAPA(rTQRS D. PW TAHAO.lM CNY.CHCAS It l!.LECUtOlYflC CA,AClfOAS HON MM:K CERA,.iC CNACITOAS 25(:21!1 UNLESS OlHflntnU H01EO IH SCHENAIDC N.l CAPAClfAHCH i.AlUES ARE. UNl:ESSEO 111.k SXMATIC LOC.AJICIN f I RSt, Ci:2 R,5t f C611 R . 4? 1 CI07 y l Ct1 U8011 20IOO C -, . / t F60I 1

8、1651 IOK fAL )l l601 r - - -, ,.,.,w-., I u ) 2S0600 0618 .F-1-t-_ ;t. I I I I I , . , 0622 ! : i l v062 R6S2 IOK lRl U1 L 607 r-, l_L_,.,_m_i 1 Hf: 5S1 HJM4lWD TX460 2/4 2se,11 lssy, TX-456 P.C.a !ssy, TX-457 P.C.a lssy, ra-142 P.C.a /ssy, nc-133 P.C.a /ssy, TX-460 P.C.a Assy, TX-458 P.C.a !ssy, TH

9、-AF-146 P.C.a Suppon P.C.a Suppon Heat Sinker Board Bottom Cover Rubber Foot Cytindef Bush 9.5mm P.C.a /ssy, TB-136 Felt. Power Transformer, TT-227-AF-1 (for A Version) TT-227-GF-1 (for B/C Version) Chassis Body AC Outlect Socket, 5-1 6519 (for NB Verion) AC Outlect Socket (for C Version) Vol1age Se

10、lector (for B/C Version only) AC Cord (for A Version) AC Cord (for B Version) AC Power Cord (for C Version) ACO Mask (for B Version) ACO Mask (for A Version) 4P Speaker Terminal P.C.a !ssy, TX-461 Printed Rear Chassis Upper Cover _., /4 . ) 1a 0 (i!? e - - C in m en en CD 3 C C m cc I m 3 Repair Par

11、ts List Schematic: Location Parts No. Description TRANSISTORS, DIODES ANDICS 0401 - 404 0405 0406 0501, 502 0601 - 606 0607- 610 0611 - 614 0617-618 0619, 620 0621, 622 0623, 624 0625, 626 0627, 628 0801 0802 0803, 804 0805 0806 0901 0902 0601 - 608 0801 - 806 0807- 810 0811 0812 0813, 814 0815 D816

12、 0901, 0903, 904 lC401 IC501 IC502 IC801 TR30000467 2SC2602(G), Phono Amp. TR30000327 2SC536(G). Phono Stabilizer. TA10000126 2SA608K, Phono Stabilizer TR30000327 2SC536(G), Tono, LED IN4148, Diode UZ30, Zener Regulator IN4148, Diode se Prevention IN4003, Diode UZ188, Zener Regulator IN4148, Diode K

13、BL-02/PBL-403, Rectifier UZ20B, Zener Regulator NE5532N, Phono Amp. NE5532N. Tone Amp. NJM4556D, Tone Amp. LC7818, Function Schematic: Location Parts No. Description COILS, VARIABLE RESISTORS, SWITCHES AND OTHERS L601. 602 LC23310002 TRL-331, Anti-Parasitic Coil VR501 RV10001079 051 C-4,170A08, 50KB

14、 )( 2, Volume Control VR502, 503 RV10000433 4TR-1742, 20KB x 2, Treble, Bass Control VR504 RV10000378 4TR-1572, 20KW, Balance Control VR601, 602 AV40000022 VM6CKPV-1S-8 2.2KB. Blas Adj, S501- 503 SH14000160 4TA-2279, 4 Key Push Switch, Speaker/ Defeat/Mono S801 - 808 SH60000239 4TA-2301, Key Board S

15、witch, TapeNCR/ 5401 T001 FSOl,602 F901,902 SH40000155 SH20000319 PT21004044 PT21004-093 FU12000106 FU23000074 FU12000136 FU23000086 Tuner/CD/Phono/Mute C4176A01, Power SSY342, Slide Switch Phono TT-227-AF,1, Power Transformer (tor A Version) n:227-GF-1 Power Transformer (ror a C Version) Fuse, 25N

16、5A (UL) Fuse. 25N 5A (Mini) Fuse. 25rN 6A (UL) Fuse 25fN 6.3A (Min I I I i Specifications Continuous Power Output . . . . . . . . . . . 40 watts per channel, min RMS both channels driven into 8 ohms from 20 to 20,000 Hz with no more than 0.03Ai total hamonic distrotion DIN Power Output . . . . . . .

17、 . . . . . . . . . . . 58 watts per channel (1kHz, 4 ohms, 10/o THD)ID) Music Power . 200 watts total ( too w/ch) Continuous Rated Power Output . total harmonic distortion (20 to 20,000 Hz) no more than 0.03% inter modulation distortion (60Hz:7kHz = 4:1) no more than 0.03Ai Continuous 1/2 Rated Powe

18、r Output . total harmonic distortion (20 to 20,000 Hz) no more than 0.02% . inter modulation distortion (60Hz: 7kHz = 4: 1) 1 Walt/eh Power Output,8 ohms . total harmonic distortion (20 to 20,000 Hz) no more than 0.03% Output inter modulation distortion (60Hz:7kHz = 4: 1) no more than 0.03% Speaker

19、. . . 8 ohm nominal Headphone . . . . . . . . . . . . . . . . . . . . . . 8 ohm nominal Damping Factor . 120 (1 kHz, 8 ohms) Input Sensitivity/Impedance Phono (MM) . . . 2.SmV/47 Kohms Phono (MC) . . . . 200V/100 ohms CO . . . . . 150mV/20 Kohms Tuner, Tape Monitor . . . . . . 1 SOmV/20 Kohms Overlo

20、ad Level (THD 0.5% 1 kHz) Phono (MM) . . . . . . . . . . . . . . . . . . . . . 180mV Phono (MC) . . . . . . . . . . . . . . . . . . . . . . 1 SmV CD, Tuner, Tape Monitor . . . . SV Frequency Response Phono . . . . . . 20 to 20,000Hz 0.2dB (RIAA STD) CD, Tuner, Tape Monitor . . . 20 to 20,000Hz + 0.5

21、dB -0.3dB Signal to Noise Ratio (IHF A Network) Phono (MM) . 80 dB Phono (MC) . . . . . . . . . . . . . . . . . . . . . . . . 70 dB CD, Tuner, Tape Monitor . . . . 90 dB Power Consumption . . . . . . . . . . . . . . . . . 200 watts Dimensions (Overall) . . . . . . . . . . . . . . . . 430(W) x 88(H)

22、x 356(0) 16/10 x 316h2 x 141/u Weight (net) . . . . . . . . . . . . . . . . . . . . . . . . 7.6 kgs/16.72 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).