Kenwood-KA5050R-int-sm维修电路原理图.pdf

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1、1(/A-5050R Foot (J02-1072-05 Phono jack (E 1 s-0634-05) Phono jack (E 1 3-0634-05)x2 Screw terminal board (E20-0839-1 5) :E,P,Y,M,X,T (E70-0029-05):L STEREO INTEGRATED AMPLIFIER KENWOOD SERVICE MANUAL Metallic cabinet (A01,3054-01 ) Panelassy (460-0379-21 ) (K29-421 6-04). 3(K29-4216-04)x2 AC power

2、cord. (E30-) (K29-340504) Slide switch (s31 -232205) r Power cord bushing (J42-0083-05) Slide switch (s62-000 1 -0s) Miniature phone jack (E11-0188-05) w AC outlet. (E03_) :ifrelw RadioFans.CN KA-5050R CONTENTS Handle the power MOS-FETs carefully. They are easily destroyed by static electricity. Whe

3、n soldering, use a high-insulation soldering iron. When soldering, solder the gate (G) first. NOTES ACCESSORIES When replacin! the power MOS-FET, there are differences according to the ranks, so please replace Pch (or Nch) as a pair of identical rank. The parts stock for parts of the same rank as Pc

4、h (or Nch) come in packs of pairs. When ordering a quantity of 1, one pack (containing 2) will be delivered in one bag. Please order as 25K1529LBP4, 2SJ200LBP4. There is no need to adjust the ranks of Pch and Nch, and there is no need to adjust the ranks of the left channel and right channel either.

5、 Since the KA-5050R is a FET amp, even with no signal, nearly as much heat is generated as for maximu m output. When piling sets on top of each other, put this amp at the top. Placing any other unit on top of this amp interferes with the heat release and can cause harm, so do not do this. INSTRUCTIO

6、N MANUAL 860-1131-00 ENGLISH 860-1132.00 FRENCH E, L, P 860-1133-00 OHINESE M 860-1134-OO SPANISH E, M 860-1 135-00 GE, DU, lT E, L Accessories r Remote control unit .1 (A70-0e32-05) (A09-01 46-08): Battery cover Batteries (R6/5UM-3f AA) .,.,.2 AC plug adaptor. 1 (Except for some areas) For the unit

7、 with a Euro- pean AC plug in areas other than Europe. (E03-01 1 s-0s) RadioFans.CN KA-s050R REMOTE CONTROT OPERAflON Operation keys for KENWOOD components connected by system control cords * The DISC key is only used for the Autochanger CD player. KA-5050R operation keys These keys have the same fu

8、nction as the corresponding keys on the main unrt. 470-0932-0s A09-01 46-08: Battery cover TAPE A/B selector A :When operating Deck A of a double cassette deck, set this selector to the A position. B :When operat;ng Deck B of a double cassette deck or single cassefte deck, set this selector to the B

9、 position. Cassette deck operation keys These keys perform the same operations as the corresponding keys on the cassette deck. However. operations requiring simultaneous pressing of two keys are not possible. EEEE altl EA EEEE CD EEE CD player operation keys TUNER operation keys u,.r E INPUT SELECTO

10、R keys VOLUMEUP(A , DOWN( V ) keys :- RadioFans.CN KA-5050R ADJ U STM ENT/H E G LAG E / ABGTE I CH ADJUSTMENT No.ITEMINPUT SETTINGSOUTPUT SETTINGS AMPLIFIER SETTINGS ALIGNMENT POINTS ALIGN FORFIG. Unless otherwise specilied, set the respective switches as lollows: POWER:ONSPEAKER:8 REC OUT: OFF SELE

11、CTOR: PHONO 1IDLE CURRENT Connect a DC voltmeter across CN3 Pin l-2 CN3 Pin 3-4 CN4 Pin 1-2 CN4 Pin 3-4 VOLUME: 0 vR1,3 (L) vR2,4 (R) 10 mV(a) REGLAGES NITEM REGLAGE DE LENTREE REGLAGE DE LA SORTIE . REGLAGE DE LAMPLIFICATEU R POINI DE -,AUGNEMENT ALIGNER POURFIG. Sauf indicationcontraire, regler co

12、mme suit les commandes respectives POWER: ON SPEAKER: B REC OUT: OFF SELECTOR: PHONO 1 COURANT DE PLARISATION Connecler un voltmtre de CC SUR CN3 Pin 1-2 CN3 Pin 3-4 CN4 Pin 1-2 CN4 Pin 3-4 VOLUME:0 vR1,3 (G) vR2,4 (D) 10 mV (a) v v ABGLEICH NR.GEGENSTAND EINGANGS- EINSTELLUNG AUSGANGS. EINSTELLUNG

13、VORSTARKER. EINSTELLUNG ABGLEICH. PUNKTE ABGLEICHEN FURABB. Wenn nicht anders angegeben, die einzelnen Schalter wie folgt einslellen: POWER: ON SPEAKER: B REC OUT: OFF SELECTER: PHONO LEERLAUFSTROM Einen G leichspan n ungs- messer Uber CN3 Pin 1-2 CN3 Pin 3-4 CN4 Pin 1-2 CN4 Pin 3-4 anschlie en. VOL

14、UME:0 vR1, 3(L) vR2,4(R) 10 mV(a) Y. -l ! AC230- - - ACIrO- 4C22(J- ACilO- 24Oy- AC22OV* l2OV- 24Oy- t2OV- lT- I:a: ; l : 1 y3 tr 1 C PC (Component side view)PREAMPLTFTER U NtT (X08-259X-XX)BOABD Y, M TYPE t-l-r PLAY REC PL I AC OUTLETS AC l lo- t20v/220v/230-240v- 5O/60Hz UNSWITCHED SWITCHED IOOW M

15、AX. TOTAL IsOW MAX. , M, E, L I TYPE Y1 lu pld-rn plqrtr o EIJdJ Erdi d VOLUME CONTROL t- i.9) a! o r8 6668 (Y.M) les(Y L41(Y. vr?(Y IAB(Y.M) WIM REO MI YELM) 4Y Refer to the schematic diagram ior the values of resistors and capacitors EEE PElDAT 2- r3IADAPTORT REC PLAY/IN REC/OUT TYPE ONLY AC OUTLE

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40、- i. Hf .PLAYRL t. tx3 ,?k :f:Ftf U.JJ VII ,r-1i- 21 KA-5050R x New Parts Parts without Parts No. ane not supplied Les arttcies non mentionnes dans le parts No. ne sont pas founnis Teile ofrne Parts No. werden nicftt geliefert. PARTS LIST A A A A A Ref. No. affi#Z Address E New rartt Parts No. $R*E

41、Description $ ff 4./ffi. t Desti- n a tion tl r le- nar k: ffi+ bJJ 634 640 640 640 640 640 A B C D E H J K 3A 3A iC 1C 1C 1C ic 1D 24, 3B 1A 2D 38,1C 1D,3D 2C ,2D 2C 3C * x * x x * vao-4412_t t K29-42L6-04 L07-0674-05 107 -0675 -05 L0? -06?6 -05 L07 -0671-05 107-07?4-05 N0B-0128-35 N09-1445-05 N09-

42、2768-0s N09 -2907 -05 N29-0268-0s NB6-4008-4s NB9-3008-45 N89-3008-46 N89-3010-45 KNOB VOLUME KNOB SP, TONE, BAL, REC OUT SEL POiER TRANSFORMER PNWER TRANSIORMER PNWER TRANSFNRMER PNHER TRANSFSRMER PE|jER TRANSFERMER B I NI I NG POST ( EARTH ) SET SCREIlJ ( M3XB ) SEl4S ( TAPTITE SCREll ) ( 4X8 ) SE

43、MS (TAPTITE SCRE.I) ( 3Xi4) PUSH RIVET BINDING HEAD TAPTITE SCREW BINDING HEAD TAPTITE SCREl./ BINDING HEAD TAPTITE SCREl,J BINDING HEAD TAPTiTE SCREH E P YM XT L PREAMPLIFIERNrT (X08-259X-XX) c1 -6 c7 ,B c9 -r2 c13 ,14 c15 ,15 c17 ,18 cr9 ,24 Fa1 aa c23 ,24 c25 ,26 nto ?n n?l 7 c33 ,34 c35 -46 Atr1

44、 E c53 ,54 c55 ,56 c57 -60 c61 ,62 c65 -68 c69 , ?0 c7 3 ,7 4 c7 5 ,7 5 c101 c102,103 c104,105 c106,10? c108 c 109, 1 10 c111,112 c113,114 c115 cr17 -123 c|24, L25 c126 c 121 CF92FV1H151K CF92FV1HiO1K CF92FV1H122J CF92FV1H4?2J cc45FSL 1 H560J CF92FV1H393J CF92FViH113J c90-1951-05 CEO4KilVlOOM cF 92F

45、V 1H332J CF92FV1H1O3J CF92FV1I-Ii5iK CF 92FV IH22TK CF92FV1H151K CEO4K!1H3R3l1 CF92FV1Hi O1K cF 92FV 1.H122J CF92FV1H1O2J CF92FV1H221K cE04Ki.l1 V4?0M cE04Ki1C221M c90-191?-05 c91-1466-05 CF92FViH1O1K cE04K!i1E10iM CF92FV1H1O3J CEO4K11E221l,1 cE04K.r1Vi00M cE04KIlJ1A101M CF92FV1 Hi O4J CEO4Ki,J1V1O1

46、M CEO4KWlVlOOM cE04KH1C101M CEO4K!Jl V33OM CC45F5L ITI221J CK45FF 1HlA3Z CEO4Kl,liAIOlM t1F l1F Ma lvl F CERAMIC MF MF ELECTRO E L ECTRO i1 F MF MF r1 F MF E L ECTRO l1F l1F l1F MF ELECTRO E L ECTRO ELECTRE FILM tl F ELECTRO MF ELECTRS DLECTRO ELECTRN MII E L iJC TRN EI-DCTRS ELECTRN E LECTR O CERAM

47、IC CERAMlC ELECTRN 1 SOPF K l O)PF K i 2OOPF ,I 4?IOPF J 56PF J 0. 039ull J 0. 01 1ur: .J 330tuF 6. 3l,lv 1 OuF 35WV 33OOPF J 0.010uF 1 5OPF 22OPF 15OPF 3. 3UF l OOPF 1 200PF 1000PF 22OPF 4?UF 22AUF 1 6iV 1 00uF 1 6|lV 22PF K 1OOPF K 1 0OuF 25WV 0.01OuF J 220UF 2sl,IV i OuF 35wv 1 00uF 1 Ol.lv O.1tU

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