Yorkville 50B Service Manual 电路图.pdf

Before operating this unit, please read this manual thoroughly, and retain it for future use. Veuillez lire ce manuel attentivement avant dutiliser lappareil et le concerver pour consulta- tions ultrieures. RVIS 06/93 Printed in Canada Quality and Innovation Since 1963 SERVICE MANUAL YORKVILLE 50B RadioFans.CN 收音机爱 好者资料库 Page 2 50B SERVICE MANUAL SPECIFICATIONS POWER REQUIREMENTS: 117VAC 60Hz 120VA POWER OUTPUT:50W, 4 Ohm load, 5%THD, 1KHz INPUT SENSITIVITY:INPUT<25mVrms EFFECTS RETURN1N4004 PWR_SUPPLY_CAP PC#4625_HOLES_ADDED_FOR_RADIAL 50B M510.PCB_DATABASE_HISTORY C2410P N.B TOP Q3 OF ROUTED AREA. AGINST THE UPPER PART PLACE THE TOP OF Q3 NB OF Q3 TOWARDS BEND BOTTOM LEADS FRONT OF BOARD. AREA AS SHOWN. INTO ROUTED BEND Q3 DOWN MAXIMUM.COULD BE KEPT TO ABOARD AND CHASSISTHE DISTANCE BETWEEN LEADS, ETC, SO THATHOLDER LEGS, DIODESUCH AS WCS, FUSE THE BOTTOM OF BOARDPROTRUDING FROMLEADS THAT ARE*CUT ALL NECESSARY VER-3.30 M510 50B GOLD_S BLANK SIZE= 12.250 X 10.925 4 For s ver. secondary fuses. Use # 2403 (T2A) DO NOT STUFF C30 OR F1 FUSEHOLDER FOR S VERSION 3 WC2/WC3 NO WIRE FOR S VERSION WC6 GRN/YELL WIRE FOR S VERSION ADD TUBING TO S VERSION WIRE GREEN WIRES FOR N.A.WC2=3GRN AND WC6=5GRN BLACK DOUBLE/INSUL. FOR SBLACK 18AWG WIRES FOR N.A. WC1 AND WC3 2 1 PRODUCTION NOTES ASSEMBLY M510_3.30 HOLE AZ ALL double Insulation * Fuse holders no longer need trimming - However, leads should be no longer than the length of the fuse holders ALL double Insulation * Fuse holders no longer need trimming - However, leads should be no longer than the length of the fuse holders RadioFans.CN 收音机爱 好者资料库 SHEAR VCD SHEAR BLANK SIZE= 12.250 X10.925 M510-3.20 C28 25V 100U C18 25V 68U C13 100N Q2 BC560 R163K3 C16 22U 16V + Q4 FUNCTION BD139 R38 0.5W 1K Q5 BDV65B R31 5W 100R C23 10N 100V DOWN BAR D1 1N5402 ZD216V TAB7 250TAB SEC_IN F2 T2A 4A-FB #3414SECONDARY U1 TLO72 JB4 LINE_OUT P1 5C10K VOLUME D81N4148 Q7 2N5638 R105 2K2 C27 25V 100U C12 100N C1433N C15 680P C19 15P C20 680P C21 100N C22680P C11 680P C1 4N7 C7 22N C10 680P C2 680P C8 6N8 C3 330P J50 C9 6N8 Q1 BC560 Q3 BC550C R18 2K2 R17 47K R15 22K R1210K R13 100K R14 1K8 R19 2K2 R203K3 R21 680R R23 10K R24 7K5 R22 270R R25 47R R26 12R R27 12R R3 2K2 R9 3K3 R8 47K R4 100R R7 15K R6 15K R1 10K R10 3K3 R5 680R R2 1M R402K2 R4110K R421M R43 22K C4 33U 16V J6 C5 10U 16V + J20 R39 0.5W 1K R37 1K5 R30 0.5W 22R R35 1K5 R361K5 Q6 BDV64B R28 5W 0R27 R29 5W 0R27 DOWN BAR D2 1N5402 DOWN BAR D3 1N5402 DOWN BAR D4 1N5402 ZD316V 2200u 50V ZD422V C17 4U7 10V + F3 T2A 4A-FB #3414SECONDARY 2200u 50V JB1 INPUT GOLD JB5 PHONES P3 50KBMID P4 50KB TREBLE P2 50KBBASS D101N4148 D9 1N4148 D11 1N4148 D12 1N4148 R106 680R F1 0.8A-SB #3414AC_LINE C56 100N J4 TAB6 250TAB SEC_IN TAB5 250TAB SEC_GND TAB1 250TAB XFMR_PRI TAB4 250TAB AC_BLK TAB2 250TAB XFMR_PRI TAB3 250TAB AC_WHT WC3 WC1 C31 2U2 25V + C29 1U 25V + J22 J8 J18 J15 J3 J9 C6 10U 16V J1 J13 J12 J2 J14 C25 2200u 40V WC6 J11 J10 C26 2200u 40V D71N4004 C30 4N7 250V C32 22N 400V TAB9 250TAB OUT(+) TAB8 250TAB OUT(-) R11 270R J19 J21 J17 J16 J101 WC2 - + LED1 RED C33 100P R45 3K3 R46 3K3 R44 100K U2 TLO72 J23 J5 R110 22K C59 100P C58 100N R109 1K R108 22K R107 22K C57 3N3 D61N4004 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 #DESCRIPTION OF CHANGEVER#DATE MODEL(S):- D D D D D D D D D D D D D D DEC/02/99 . MAY/09/95 MAY/01/95 . SEP/12/94 V V V V V V V V V V V V V V 3.31 . 3.30 3.20 . 3.10 N N N N N N N N N N N N N N PC#6167_R24_15K-7K5 NOW_ADDED_IN_AUTO-INSERTION PC#4801_ADD_10P_ACROSS_R17 PC#4781_D6/D7_BAV21-1N4004 PWR_SUPPLY_CAP PC#4625_HOLES_ADDED_FOR_RADIAL 50B M510.PCB_DATABASE_HISTORY C2410P KNOBPART#FUNCTIONREF MODEL(S):- AS_OF F F TREBLE MID BASS VOLUME P P #4406 #4406 #4406 #4409 N N DEC/99 DEC/99 DEC99 DEC/99 K K #8693 #8693 #8693 #8693 R R P4 P3 P2 P1 BM50 M510.PCB_POT_LIST N.B TOP Q3 OF ROUTED AREA. AGINST THE UPPER PART PLACE THE TOP OF Q3 NB OF Q3 TOWARDS BEND BOTTOM LEADS FRONT OF BOARD. AREA AS SHOWN. INTO ROUTED BEND Q3 DOWN BOARD AND CHASSIS WILL BE KEPT TO A MAXIMUM SUCH AS WCS, FUSEHOLDER LEGS, DIODE LEADS ETC SO THAT THE DISTANCE BETWEEN CUT ALL NECESSARY LEADS THAT ARE PROTUDING FROM THE BOTTOM OF THE BOARD VER-3.31 M51050B GOLD_S WC1 AND WC3 BLACK 18 AWG WIRES FOR N.A. BLACK DOUBLE/INSUL FOR S GREEN WIRES FOR N.A.WC2=3GRN AND WC6=5GRN WC6 GRN/YELL WIRE FOR S VERSION ADD TUBING TO S VERSION WIRE WC2/WC3 NO WIRE FOR S VERSION DO NOT STUFF C30 OR F1 FUSEHOLDER FOR S VERSION PRODUCTION NOTES BLANK SIZE= 12.250 X 10.925 3 2 1 ASSEMBLY M510_3.20 HOLE AZ P:510V33.PRN