Kenwood-KGC-4042-A-Service-Manual电路原理图.pdf
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1、KGC-4042A2001-8 PRINTED IN JAPANB51-7838-00 (4) 3395GRAPHIC EQUALIZERSERVICE MANUALCKnob (FAD)(K29-5541-08)Trim plate(A21-0474-03)Screw set(N99-1543-08)Bracket(J21-3693-04)Power connection cord(E30-3654-08)RCA pin cord (IN)(E30-3646-08)RCA pin cord (OUT, F)(E30-3647-08)RCA pin cord (OUT, R)(E30-3648
2、-08)RCA pin cord (OUT, SUB)(E30-3649-08)Metallic cabinet(A01-2568-08)RCA pin cap(F29-0049-05)Knob (SUB)(K24-0710-08)Knob (EQ)(K24-0700-08)Panel assy(A64-0071-08)REVISEDS/No. 107000012KGC-4042ABLOCK DIAGRAMLchRchINPUT ISOIC4NJM2060M UPC4570G2EQIC5SW1Lch EQ B.P.FRch EQ B.P.F2SC2712Q201-205Q251-2552SC2
3、712SW3(OR)LAMP3,4 LED1-5LAMP1,2(GR)EQPOWERQ5Q4Q3 2SC2060DTA114ESDTC114ESSUPPLY2SC1741A2SC4640Q1Q2ACCGNDP. CMUTEDRIVE2SA1782Q6,7FILTERH.P.SWITCHINGTRLED6,7A.M.PBUFFERSW2WOOFERSUBMUTEFILTERL.P.NJM2068MDIC32SC3327-AQ8,9MUTENJM2068MDIC22SC3327-AQ10,11TR2SC3327-AQ12RchLchSUBLchRchREARRchLchFRONTONOFF+BOF
4、FON30150HzPRE. GNDMETER LED SUPPLYB CA D E F G H I J24356713 4PC BOARD (Foil side view)Refer to the schematic diagram for the values of resistors and capacitors.PC BOARD (Component side view)ELECTRIC UNIT ELECTRIC UNITC2C52C3C53C4C54C5C55C96C97C11C61C12C13C14C62C63C64C16C66C81C82C83C84C88C85C86C87C8
5、9R91 R92R104R105R106R93C90C93C95C94C98LAMP1LAMP2LAMP3LAMP4R108C203C253C202 C252C204C254C206C256ORGR(FRONT)(REAR)(SUB.W)BEBEBEBEBEBEBEBEBE+BGNDP.CONABCDEAFRG149 91EBVR1EBEB116116162 141 41 4114CN1CN2CN3CN4CN14CD14ASW2SW1CN15D1Q3Q4Q5D4D2D3D5D6Q6Q7D7Q1Q2Q12Q10Q11SW3CN10CN11CN12Q8Q9CN9CN13EQ ONSUBEQ ON/
6、OFF PWBMAIN PWBR54R53R55 R5R3R4R203 R253R21R201 R204R202R1 C1C100C51 R51C101R101R102R252 R251R71R103R254R85 R86R67R17R100R10R60R270 R271 R267 R268 R264 R265R261 R262R269 C261 R266 C259R263C257R260 C255R257R97R258R259R94C92 R96 R124R14 R64R222R205R219R206C211R220R221 R217R218 R214R215 R211R212 R208R2
7、16 C209R213 C207R210C205R207R209R59R62R20R12R9R107R84R82R81R87C150R7R6R8R57R56R58R88R89R256R99R98C258C260R63C91R95R272R255C210 C208R90R16R15R18R19R61C65R70R69R68R65R66R11C15R83R150R13BEBEBEBEBEBEBEBEBEBE178141485145858411458IC2IC1IC4IC5IC3Q255 Q254 Q252Q253 Q251Q202Q204Q205 Q203 Q201MAIN PWBEQ ON/OF
8、F PWBRefer to the schematic diagram for the values of resistors and capacitors.Ref. No.AddressQ13BQ23BQ33CQ43CQ53CQ64CRef. No.AddressQ73BQ84DQ95DQ104BQ114BQ123CRef. No.AddressIC13IIC24IIC34HIC43GIC54IRef. No.AddressQ2015JQ2025JQ2035JQ2045JQ2055JQ2514GQ2524GQ2534GQ2544GQ2554GB C D E F G H I JA2435671
9、KGC-4042ACAUTION: For continued safety, replace safety critical components only with manufacturers recommendedparts (refer to parts list). Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are ac
10、ceptably insulated from the supply circuit) before the appliance is returned to the customer.DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments or/and units.CN4IC4(1/4)IC4(2/4)IC4(3/4)IC4(4/4)Q201 Q202 Q203 Q204 Q205
11、IC5(1/2)Q251 Q252 Q253 Q254 Q255IC5(2/2)SW2SW3LAMPEQIC2(1/2)IC2(2/2)Q8Q9CN1CN2CN3Q11Q10Q12IC3(1/2)IC3(2/2)SW1CN14CD14AQ1Q2D1D2Q3Q4Q5D4D6 D5D7D3IC1(1/2)CN9 CN10 CN11 CN12 CN13LED1LED2 LED5LED4LED3LED7LED6ISOBUFFBUFFBUFFBUFFMUTEMUTEHPF SWEQ AMPEQ AMP1/2 VCCQ7Q6LAMP/DRVLEDSUBWOOFERFREQ.SUBWOOFERLEVELLR
12、FRONTREARRLSUBRLLRINPUTIC1 : NJM4580MDIC2,3 : NJM2068MDIC4 : NJM2060MIC5 : UPC4570G2Q1 : 2SC4640(T.U)Q2 : 2SC1741A(R)Q3 : 2SC2060Q4 : DTA114ESQ5 : DTC114ESQ6,7 : 2SA1782(T.U)Q8-12 : 2SC3327-AQ201-205,251-255 : 2SC2712(GR)D1,2 : DSK10C-ET1D3 : MTZJ4.3AD4-6 : 1SS133D7 : MTZJ5.1BLED1-5 : AY3802KLED6,7
13、: PY3822KCN15SUB50 200 800 3.2K 12.8K50 12.8K800200 3.2KB LINEGND LINESIGNAL LINE4321470PC11KR1100u25+C34.7u50+C210KR211KR51+4.7u50C52+100u25C53C51470PR71 10K0.1C1010.1C100109481312141.5KR2021.5KR2011.5KR204R203 1.5K657231.5KR2521111.5KR2511.5KR254R253 1.5KC96 220u10+C97 10u50+R207 180R208 2.2KR209
14、33K0.33C2034.7u50C202+13R212 33KR211 2.2KR210 1500.1C205C204+1u5014R218 39KR217 4.7KR214 4.7KR215 39KR213 5603900PC207R216 560C2091000PC206+0.47u5015C2080.116R221 33KR220 4.7KR219 680270PC2110.033C21021328122u25+4.7KR20510u50+150KR22211 124.7KR2064.7u50C252 C254 1u50 C2560.47u50C258 C2600.33R258 2.2
15、KR257 180C253R259 33KR261 2.2KR260 150C2550.1R265 39KR262 33KR264 4.7KR263 5603900PC257R269 680R270 4.7KR268 39KR267 4.7K1000PR266 560C259R271 33KC261 270P150KR27210u50+R2554.7K22u25+4.7K+311+22 2365R25674+240.1250.033261 2 3 4 5 6 7 8 91 2 3 4 5 6 7 8 922u25+C61C11+22u25R3 10KR5 100KR4 10K R54 10KR
16、55 100KR53 10K(GR) (OR) (OR)(GR)15AR91 110110R92ECBDONC5C4C551u50+C12270KR7R6 3K30KR80.1u50+C131u50+C1410KR10R20270K2381C15 2200PR11 1.5K1u50C62R61 1.5K30KR57270KR56 3KR58C63+270KR6010KR701u50+C645647C65 2200P0.1u50R67 33K R17 33K560R1322u25+C1622KR1210KR1422u25C66+R6356022KR62R6410K1KR151KR16(1/2)V
17、R1R18 11KR19 11K1K(2/2)VR1R661KR6511KR68R69 11K432131242134470R1500.01C150R10310KR101 22K560R10210u50C95+2341R99R983.3KR1000.47u50+C930.22u50C94+3.3KR97R95 100KR124 1KR966587470PC92100K 100K6.8KC91 3300PC90 1u50+220R8422u25+10K 4.7KR81123470u16C82+0.047C810.022C83R822.2KR8347u16C84+330u25+C881K10KR8
18、5R864.7KR107R89 103.8KR90R8847KR8733u50+C89470u16C86+1000u16+18KR84C855687100u25C87+21 123456 123456 12 3 4 5 6 1 234141131211 211615 25 2622 23 24 31470R104 820R93R1051.5K34 35 3634 35 364441 424441 422 543 642 3 5 615K(B)VR2(6/7)15K(B)VR2(6/7)20K(B)VR2(7/7)150Hz30HzONQ12Q8,9IC4VR2(6/7)VR2(7/7)GNDB
19、ATTP. CON+B +B+B+B+B+B+B+B+B +B +B+B+BLAMP1LAMP2LAMP4 LAMP3GROR1.5KR106FRFADERLH: ON+BR108C98C54VR2(1/7) VR2(2/7) VR2(3/7) VR2(4/7) VR2(5/7)R9R59 1.5K1.5K120K+B+B+B+B+B+B+B+B+BG1KGC-4042A3.4V3.4V12.6V3.4V3.4V3.4V3.4V3.4V3.4V3.4V0V3.4V3.3V12.6V2.7V12.6V5.0V4.0V3.4V5.0V4.0V3.4V0V12.6V3.4V3.4V3.4V3.4V3
20、.4V 3.4V0V3.6V12.6V3.4V3.4V0V3.6V3.6V3.6V0.7V0.7V1.4V14.4V13.5V14.4V14.4V0V14.2V14.4V0V10.0V13.6V0V8.9V13.6V12.6V3.4V3.4V3.4V10K10K10K10KECB2SC1741A(R)2SC2060DTA114ESDTC114ESECBBEC2SC2712(GR)14NJM2068MDUPC4570G258178NJM2060M14KGC-4042A7EXPLODED VIEWB31AFADERSUBEQ.ILLUMADCCBDB50 200 800 3.2K 12.8K FR
21、EQ LEVELBBABCD2.6x5 (F-Tap) BLK3x5 (Bi-Tap) BLK3x4 (Bi-Tap)3x4.5 RIVET: N85-2605-45: N86-3005-45: N09-2630-08: N29-0053-0524x228x730232725201817161522F12623413VR2-1VR1SW1SW2SW3VR2-2 VR2-3 VR2-4 VR2-5 VR2-6 VR2-7LED1LAMP4LAMP2LAMP1LAMP3LED2 LED3 LED4 LED5 LED6 LED7A2Parts with exploded view numbers l
22、arger than 700 are not supplied.724705706704723721731722702KGC-4042A8PARTS LISTKGC-4042AELECTRIC UNITNew PartsParts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohane Parts No. werden nicht geliefert.AddNewDes-tina-tionRef. No. Parts No.
23、Description1 1B A01-2568-08 METALLIC CABINET3 2A A64-0071-08 PANEL ASSY4 1A A21-0474-03 DRESSING PANEL- B46-0100-50 WARRANTY CARD- B64-0229-00 INSTRUCTION MANUAL15 3B E30-3646-08 CORD WITH PLUG (IN)16 3B E30-3647-08 CORD WITH PLUG (OUT-F)17 3B E30-3648-08 CORD WITH PLUG (OUT-R)18 3B E30-3649-08 CORD
24、 WITH PLUG (OUT-SUB)20 2B E30-3654-08 DC CORD22 2B F29-0049-05 INSULATING COVERF1 2B F06-3026-05 FUSE (3A)- H01-9463-08 ITEM CARTON CASE- H10-4326-08 POLYSTYRENE FOAMED FIXTURE- H11-1502-08 POLYSTYRENE FOAMED BOARD- H25-0233-04 PROTECTION BAG (50X100)- H25-1101-04 PROTECTION BAG (150X500)- H25-1642-
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