ra-1010-tm维修电器原理图

Quality.Uncompromised.STEREOTechnicalDC INTEGRATED AMPLIFIERManuaRA-IOIOTABLE OF CONTENTSChassis Layout (Top View).....Adjustment Procedures........................3Serial Nos.BeginningRepair Parts List.4NC59118Specifications.,,.5Schematic Diagram,,,..,,,,,,,.,,,.,,,,,,..6PC Board Diagrams..........ADDENDA (November,1981)1.FETs Q401 and Q402 on the MC head-amp circuit2.For 220V/240V spec.units,noise cancellers C002can accept both (S)and (R)IDss ranks.and C003 installed between the primary side of thea.Therefore it is necessary to use appropriate drainpower supply circuit are eliminated.resistors R403 and R404 according to the IossC001 is changed from 0.047 to 0.022 (PME265MB-rank of the FETs.522,Part No.470101136).2SK155:For IDss (S)rank;R403,R404 -8203.For 220V/240V spec.units,secondary fuse F901 isohms (conventional value)changed from F1A to T1A (Part No.345952100).For Ioss (R)rank:R403,R404 -2.7kilohmsb.A 2.2-kilohm resistor is additionally installed be-tween the junction of R438 and R439 on +Bcircuit of the MC head-amp when (R)rank FET isused.c.2SK155 (R)and 2SK155 (S)are replaceable by2SK130A(K)and 2SK130A(L)respectively.Part No.2SK130A(K)-3020011352SK130A(L)-302001136TH巨R▣T三LO▣，LTD.136-8 OHOKAYAMA,MEGURO-KU.TOKYO 152.JAPANR▣TEL三E口TR▣NICS C▣，LTD.2ND FLOOR,EVERGLORY BLDG.,NO.305,SECTION 3,NANKING E.ROAD,TAIPEI,TAIWAN,REPUBLIC OF CHINAR▣T三L▣FAM三RIOA,INN口1055 SAW MILL RIVER ROAD,ARDSLEY.N.Y.10502.U.S.AR▣T三LHI FI LIMIT三D2 4 ERICA ROAD,STACEY BUSHES,MILTON KEYNES,BUCKINGHAMSHIRE,ENGLAND