Alto-L6-mix-sm维修电路原理图.pdf

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1、 Version 1.0 MODEL: L-6RadioFans.CN 收音机爱 好者资料库CONTENTS1. Introduction.22. Specification.33. Black Diagram.44. Schematic Diagram55. Wiring Diagram.106. PCB Layout.117. Test Procedure.168. BOM.22RadioFans.CN 收音机爱 好者资料库1. Introduction1. IntroductionT h e L- 6L- 6 i s 2 m o n o M IC/ LINE c h a n n e l

2、s w i t h M IC PREA M PS p l u s 2 st e r e o c h a n n e l s p e r f e c t f o r k e y b o a r d s, M ID Ie q u i p m e n t o r o t h e r st e r e o so u n d so u r c e s a n d a 2 - t r a c k i n p u t / o u t p u t f o r r e c o r d i n g a n d p l a y b a c k i n a m i x e r sm a l l e n o u g h

3、t o c a r r y i n y o u r b o a r d l u g g a g e : y o u c a n f i n d g r e a t 3- b a n d e q u a l i z e r s i n e a c h c h h a n n e l , o n e A U X se n d s, o n e st e r e o r e t u r n s,p h a n t o m p o w e r a n d a c c u r a t e p e a k LED a n d l e v e l m e t e r s. Pl u s o f c o u

4、r se o u r u l t r a l o w n o i se c i r c u i t r y a n d e x c e p t i o n a lb u i l d q u a l i t y .- 2 M IC In p u t Ch a n n e l s w i t h g o l d p l a t e d XLRs a n d b a l a n c e d Li n e In p u t s.- 2 S t e r e o In p u t Ch a n n e l s w i t h b a l a n c e d T RS Ja c k s.- U l t r

5、a - l o w n o i se d i sc r e t e M IC Pr e a m p s w i t h +48 V Ph a n t o m Po w e r .- Ex t r e m e l y h i g h h e a d r o o m o f f e r i n g m o r e d y n a m i c r a n g e .- B a l a n c e d In p u t s f o r h i g h e st si g n a l i n t e g r i t y .- W a r m , n a t u r a l 3- b a n d EQ o

6、 n e a c h c h a n n e l s.- Pe a k LED s o n e a c h m o n o Ch a n n e l s a n d e a c h st e r e o Ch a n n e l s.- A d j u st s t h e i n p u t se n si t i v i t y o n e a c h st e r e o c h a n n e l s.- 1 A U X S e n d s p e r c h a n n e l f o r e x t e r n a l e f f e c t s a n d m o n i t o

7、 r i n g .- B a l a n c e d T RS a n d XLR o u t p u t s, Co n t r o l Ro o m a n d H e a d p h o n e O u t p u t s.- 2 - T r a c k In p u t s a ssi g n a b l e t o M a i n M i x , Co n t r o l Ro o m / H e a d p h o n e O u t p u t s.- H i g h l y a c c u r a t e 6 se g m e n t B a r g r a p h M e

8、t e r s.- Pe r f o r m a n c e a n d e x c e l l e n t n o i se f i g u r e s- Ru g g e d c o n st r u c t i o n e n su r e s l o n g l i f e e v e n u n d e r t h e m o st d e m a n d i n g c o n d i t i o n s- M a n u f a c t u r e d u n d e r IS O 9 0 0 1 c e r t i f i e d m a n a g e m e n t sy

9、st e mMono input channelsMicrophone inputElectronically balanced, discrete input configurationFrequency response10Hz to 55kHz, +3dBDistortion(THD & N)0.005% at +4dBu, 1kHzGain range0dB to 60dB (MIC)SNR (Signal to Noise Ratio)115dBLine inputElectronically balancedFrequency response10Hz to 55kHz, +3dB

10、Distortion (THD & N)0.005% at +4dBu,1kHzStereo input channelsLine inputUnbalancedFrequency response10Hz to 55kHz,+3dBDistortion (THD & N)0.005% at +4dBu,1kHzImpedanceMicrophone input1.4kOhmAll other inputs10kOhm or greaterTape out1kOhmAll other output120OhmEqualizationHi shelving+15dB 12kHzMid bell+

11、12dB 2.5kHzLow shelving+15dB 80HzMain Mix SectionNoise (Bus noise)Fader 0dB, channels muted:100dBr (ref.:+4dBu)Fader 0dB, all input channels assigned and set toUNITY gain: (ref.: +4dBu)Max output+22dBu balanced XLR+22dBu unbalanced , 1/4” jacksAUX return gain rangeOFF to 15dBAUX send max out+22dBuDS

12、P sectionA/D and D/A converters24 bitDSP resolution24bitType ofVibraflange, Funky, Rockabilly, bigstage, vibrato 1-4, Flanger1-4, Chorus 1-4Presets16Presets16-positon preset bank selectorControlsFX level, reverb level Clip LEDPower supply (AC/AC adapter)Main VoltageUSA/Canada 100 12V, 60HzEurope 210

13、 230V,50HzU.K./Australia 240V, 50HzPower consumption15WattsPhysicalNet weight1.4kg (xxxlb)Shipping weightXxx kg (xxxlb)Dimension (W*D*H)185mm 230mm 35/55mm12345678ABCD87654321DCBAL6MAP SchTitelSizeFileDateDrawn BySheetRevisionModel No8-Sep-2003 KEVIN LINALTO MIXING CONSOLE11ofL-6 BLOCK DIAGRAMVER030

14、701A2(C)MONO INPUT CHANNELS ( 1-2 )213MIC IN+48V3-BAND EQ12K2.5K80SG/OLLEFT-BUSRIGHT-BUSAUX-1RIGHT BUSLEFT BUSAUX 1STEREO INPUT CHANNELS (3-6)EQ12K2.5K80LEFT BUSRIGHT BUSAUX 1STEREO AUX RETURN 1RIGHT BUSLEFT BUSAUX 1AUX SENDMAIN OUTLEFT BUSRIGHT BUS2132TK TO MIX213RIGHT BUSLEFT BUSTAPE INRIGHT2-TRAC

15、K2132TK TO CTRL ROOM213PHONES OUTPUTLEFT METERRIGHT METER+/ 15db3-BAND EQ12K2.5K80+/ 15db3c5e1a4d2bLEFT3c5e1a4d2bRIGHTMAIN MIXAUX SEND1TRSMAIN MIX LEFTTRSMAIN MIX RIGHTTRSCONTROL ROOM OUTPUTLEFTTRSRIGHTTRSPHONESTRS& PHONESCONTROL ROOMLEFTTAPE OUTLEVELAUX RETURN1TRSRNTNTRSRNTNPANPHANTOMLINE INGAIN-+P

16、OWER-+-+LOMIDHI1212AUX1LEVELPOSTPREBALANCEAUX1LEVELLOMIDHISG/OL3c5e1a4d2bLEFT(MONO)3c5e1a4d2bRIGHTTRSRNTNTRSRNTN-+-+MIC GAIN:060dBLINE IN TRIM:+15dB-45dBEFX SENDDSP BOARDPRESETSFX LEVELREVERB LEVELEFX SENDLEFT-BUSRIGHT-BUSAUX-1EFX SENDAUX 1AUX11212POSTPRE12345678ABCD87654321DCBAL6G.SchTitelSizeFileD

17、ateDrawn BySheetRevisionModel No8-Sep-2003 KEVIN LIN.INPUT STAGE41ofALTO L-6VER030709A2(C)R14R7R34R7C161nC151nC191000u/10VR44R7VR12O10KR151K50R352K49321U2A4580MR585K11C2522PC5247u/25VR2020K2134X1JY-5042-030G3c5e1a4d2bX3JY-6351G-02-250TRSRNTNC5330PC1110nR48470RR342K49C847u/63VC747u/63VR124K02R114K02C

18、122u/35VC222u/35VR96K81R76K81LINE IN1MIC 1PH PWRTR5HRTR1A1316R161K50-VCCVCCR382K49R372K49C1310nR49470RTR7HRTR2A1316-VCCVCC321U1A4580M567U1B4580MC2122PC2222PR555K11R545K11R432K49-VCCR422K49TR8HRVCCR402K49D6BAS316VCCR1920K-VCCR6210K0R6310K0R565K11C2322PMIC GAIN=0-60dBLINE IN GAIN=+15-45dB3c5e1a4d2bX5J

19、Y-6351G-02-250TRSRNTNLINE IN 3/43c5e1a4d2bX6JY-6351G-02-250TRSRNTNLEFT(MONO)RIGHT321U7A4580MR11610K0C2722PC6147u/25VR11510K0C2622PR11310K0C169100PR11410K0C170100P567U7B4580MR12510K0C3322PC7247u/25VR12410K0C3122PR12210K0C171100PR12310K0C172100PR2320KR2620KPRE-CH5PRE-CH63c5e1a4d2bX7JY-6351G-02-250TSRN

20、TNLINE IN 5/63c5e1a4d2bX8JY-6351G-02-250TRSRNTNLEFT(MONO)RIGHT321U10A4580MR13610K0C3222PC8147u/25VR13310K0C3422PR12110K0C173100PR13010K0C174100P567U10B4580MR13510K0C3622PC8247u/25VR13410K0C3522PR13110K0C175100PR13210K0C176100PR2720KR2820KL6G(1/4)PCB# L6MAIN.PCBPRE-CH7PRE-CH8EQ HI12KHZC12118n(M)VR15B

21、50KR786K8VR14B50KR776K8LOR11210K0C5647u/25V567U3B4580MR1861MC14922PR1061K1VR17B50KR691K3MIDR94910RC12712n(M)R95910RC10933n(M)C11033n(M)C13912n(M)C13418n(M)C5747u/25VVR25W50KAUX-1R17068KR1724K7C1452.2u/50VR796K8TR12BRTR11BRR1951K50VCCLD1REDR19330K321U3A4580MVR24W50KPEAKC5847u/25VR1993K9R20936KC15122P

22、C6047u/25VR2205K1LEVELAUX-POSTR2235K1R2215K1LEFT-BUSRIGHT-BUSPAN80HZ2.5KJ1POST(PRE)VR18B50KR1734K7R1744K7EQ HI12KHZC12318n(M)VR5AB50KR866K8VR7AB50KR846K8LOR12610K0C6247u/25V321U8A4580MR1871MC15322PR1071K1VR6AB50KR701K3MIDR96910RC12812n(M)R97910RC11433n(M)C11533n(M)C14012n(M)C13518n(M)C6447u/25VVR28W

23、50KAUX-1R24947KR1794K7C1472.2u/50VR886K8TR16BRTR15BRR1971K50VCCLD3REDR24222K321U9A4580MVR1AW50KPEAKC6547u/25VR2013K9R21136KC15422PC6847u/25VR2275K1LEVELAUX-POSTR2245K1R2285K1LEFT-BUSRIGHT-BUSBALPGND80HZ2.5KEQ HI12KHZC12418n(M)VR5BB50KR876K8VR7BB50KR856K8LOR12710K0C7347u/25V567U8B4580MR1891MC15622PR1

24、091K1VR6BB50KR731K3MIDR100910RC13012n(M)R101910RC11333n(M)C11633n(M)C14212n(M)C13618n(M)C7447u/25V80HZ2.5KR11710K0R12810K0R24847KR24322K567U9B4580MVR1BW50KC6647u/25VR2023K9R21036KPGNDC15522PC7747u/25VLEVELR11910K0R11810K0J3POST(PRE)PRE-CH7PRE-CH8VR21B50KR1764K7R1804K7EQ HIC12518n(M)VR8AB50KR916K8VR1

25、0AB50KR896K8LOR13810K0C7547u/25V321U11A4580MR1901MC15722PR1101K1VR9AB50KR741K3MIDR102910RC13112n(M)R103910RC11733n(M)C12033n(M)C14312n(M)C13718n(M)C7647u/25VVR29W50KAUX-1R25147KR1824K7C1482.2u/50VR936K8TR18BRTR17BRR1981K50VCCLD4REDR24422K321U12A4580MVR2AW50KPEAKC7847u/25VR2043K9R21336KC15822PC8047u/

26、25VR2305K1LEVELAUX-POSTR2295K1R2315K1LEFT-BUSRIGHT-BUSBALPGND80HZ2.5KEQ HIC12618n(M)VR8BB50KR926K8VR10BB50KR906K8LOR13710K0C8347u/25V567U11B4580MR1911MC16022PR1111K1VR9BB50KR751K3MIDR104910RC13212n(M)R105910RC11833n(M)C11933n(M)C14412n(M)C13818n(M)C8447u/25V80HZ2.5KR13910K0R14010K0R25047KR24522K567U

27、12B4580MVR2BW50KC7947u/25VR2033K9R21436KC15922PC8547u/25VLEVELR12910K0R14110K0J4POST(PRE)PRE-CH5PRE-CH6VR23B50KR1814K7R1834K7567U2B4580MR615K11C3022PC5347u/25VR2420K2134X2JY-5042-030G3c5e1a4d2bX4JY-6351G-02-250TRSRNTNLINE IN2MIC 2R24R7R54R7C181nC171nC201000u/10VR64R7VR13O10KR171K50R362K49C6330PC1210

28、nR50470RR452K49C947u/63VC1047u/63VR144K02R134K02C322u/35VC422u/35VR106K81R86K81PH PWRTR6HRTR3A1316R181K50-VCCVCCR392K49R462K49C1410nR51470RTR10HRTR4A1316-VCCVR20B50KVCCR1081K1R721K3MIDR98910RC12912n(M)C15022PR1881MR99910R567U6B4580MC11133n(M)C6947u/25VC11233n(M)R12010K0LO321U4A4580MR816K8C14112n(M)5

29、67U4B4580MC2822PVR19B50KC13318n(M)C2922PR826K8R605K11VR16B50KR595K11C12218n(M)R472K4912KHZ-VCCEQ HIC7047u/25VR442K49VR27W50KTR9HRVCCAUX-1PGNDR17168KR412K49R1774K7D7BAS316PANC1462.2u/50VRIGHT-BUSVCCR836K8LEFT-BUSTR14BRR2265K1TR13BRR2225K1R1784K7R1961K50C2422PR1754K7R575K11VCCR6410K0AUX-POSTVR22B50KR6

30、510K0LD2REDR2220KLEVELR19430K-VCC80HZ321U6A4580MR2255K12.5KC7147u/25VVR26W50KJ2POSTPEAKC15222P(SOLTON1K2)用(PRE)C5947u/25VR21236KR2003K9L6G.S01L6G.S02L6G.S0384U2C4580MC185100nC184100nC186100nC183100nVCC-VCCC187100nC188100n84U4C4580M84U6C4580M84U8C4580MC190100nC191100nC196100nC197100nC199100nC200100nC

31、201100nC202100n84U1C4580M84U3C4580M84U7C4580MC179100nC189100nC180100nC192100nC181100nC195100nC182100nC198100n84U11C4580M84U12C4580M84U10C4580M84U9C4580MVCC-VCC12345678ABCD87654321DCBAL6G.S01TitelSizeFile:Date:Drawn By:SheetRevisionModel No:8-Sep-2003 KEVIN LIN.SEND & MAIN OUT & 2TK & CTRL R & PHONES

32、42ofALTO L-6 VER030709A2(C)C230100PC8647u/25VR254150KR24622KC231100PC8747u/25VR253150KR24722KVR3BW50KVR3AW50K321U13A4580M567U13B4580M84U14C4580MR255270KC3722PC8847u/25VR2325K11R256270KC3822PC9347u/25VR2335K1184U19C4580M84U13C4580M84U15C4580MC204100nC203100n+VCC-VCCC206100nC205100nC9747u/25VR3120K321

33、U14A4580MR3210K0C16622PC10047u/25VR14710K0R2375K1C9847u/25VR3020K567U14B4580MR3310K0C16322PC9947u/25VR14810K0R2365K1LEFT-BUSRIGHT-BUS2TK TO MIXR25727K2TK TOR25827K321U15A4580M567U15B4580MVR4BW50KVR4AW50KC9047u/25VC8947u/25VR2063K9R2053K9R21536KR21736KC4022PC3922PC9147u/25VC9547u/25VR14210K0R14510K08

34、4U18C4580MAUX RETURN 1R-METERR2920KC9247u/25V321U21A4580MR21636KC4122PL-METERAUX-1C177100PC178100PROOMLEFT-BUSRIGHT-BUSCONTROLPHONES/CTRL ROOM12345678CN12.5-8PPGND+VCC-VCCPH PWRC207100nC208100nC209100nC210100nC211100nC212100nLEFT-BUSRIGHT-BUSAUX-1AUX-SEND1AUX-RTN1-LAUX-RTN1-R2TK- N-L2TK- N-R2TK TO C

35、R-R2TK TO CR-LSW4APS-22E85LSW4BPS-22E85LSW3BPS-22E85L2TK TO CR-R2TK TO CR-LSW3APS-22E85L2TK-IN-L2TK-IN-R+5VDL6G (2/4)DGND84U21C4580MC215100nC216100n3c5e1a4d2bX10JY-6351G-02-250AUX SEND1R265120RR264120RTRSRNTN321U17ABA15218N567U17BBA15218NC16222PR14410K0R261120R3c5e1a4d2bX9JY-6351G-02-250R266120RPHON

36、ESR260120RR259120R321U16ABA15218N567U16BBA15218NR14310K0C16122P3c5e1a4d2bX11JY-6351G-02-250TRSRNTNCTRL ROOM R3c5e1a4d2bX12JY-6351G-02-250TRSRNTNCTRL ROOM LR263120RR262120RR267120RR268120R567U18B4580M321U18A4580MR23810K0C16422PLEFT-BUSRIGHT-BUSC16722PR23910K0C10247u/25VC10147u/25V321U19A4580MR21836KC

37、16522PR2073K9C9447u/25VVR11BW50KMAIN MIXVR11AW50KR21936KC16822PR2083K9C10347u/25VC9647u/25VC10447u/25VR14610K0R14910K0MAIN MIXLEFTRIGHTR27439KR27539K567U19B4580M3c5e1a4d2bX13JY-6351G-02-250TRSRNTNMAIN R (UNBAL)3c5e1a4d2bX14JY-6351G-02-250TRSRNTNMAIN L (UNBAL)R270120RR269120RR271120RR272120RR2771KR27

38、81KL(WHITE)R(RED)TAPE INTAPE OUT142536X17SCP6873NS32322TK-IN-L2TK-IN-R2TK-IN-L2TK-IN-RAUX-SEND184U16CBA15218N84U17CBA152 8NR28147RR28047RC10547u/25VC10647u/25VC217100nC218100n+VCC-VCCSW1BPS-22E85LSW1APS-22E85L1234ABCD4321DCBAL6G.S02TitelSizeFile:Date:Drawn By:SheetRevisionModel No:8-Sep-2003 KEVIN L

39、IN.DISPLAY STAGE43ofALTO L-6VER030709A48914U24CLM339167U24BLM339167U23BLM3398914U23CLM339167U25BLM3398914U25CLM339LD9GRLD10GRLD11GRLD12GRLD13YELLD14REDR284120RR285560RR288820RR291820RR2893K9R2925K6R29022K+VCCR28747R-VCCPGND101113U24DLM339542U24ALM339542U23ALM339101113U23DLM339542U25ALM339101113U25DL

40、M339LD20GRLD21GRLD22GRLD23GRLD24YEL-VCCLEFT METER(-30)(-10)(-4)(0)(+10)(+18)321U22A4580MR299100KR301100KC23647u/25VPGNDTR21HR+VCCD1ADA204KD1BDA204KTR22HRR273120RR52470RR53470RR15110K0PGND567U22B4580MR300100KR302100KC23747u/25VPGNDL-METERR-METER312U24ELM339312U25ELM339312U23ELM33984U22C4580MC219100nC

41、220100nR28247RR28347RC10747u/25VC10847u/25V+VCC-VCCPGNDLD6REDLD19GRR1844K7R2862KPGNDPGNDPH PWRPWR ONPHANTOM+VCCR30410K0R30310K0PGNDPGNDL6G (3/4)C23847PC23947PD2RLS4148D3RLS4148D4RLS4148D5RLS4148RIGHT METERLD25RED12345678ABCD87654321DCBAL6G.S03TitelSizeFile:Date:Drawn By:SheetRevisionModel No:8-Sep-2

42、003 KEVIN LIN.UDASP IN/OUT SECTION44ofALTO L-6VER030709A2(C)C4222PC2431.5nFC2404.7uF567U29B4580MR15410K0R30568RR30710K0R15210K0R15310K0321U29A4580MR15510K0C2451.5nF C2424.7uF567U30B4580MR16110K0R30668RR15710K0R16010K0R16310K0C2414.7uF567U31B4580M321U31A4580MC2441.5nF R15910K0R15810K0C4522PR16210K0C4

43、322PR3092K2R15610K0AUX-SEND112345678910111213141516CN2HEADER 8X21234COMEN1SDB161PVB15FS12345678AR1680R*4DGND+5VDGNDR312220RR3117K5LD8RED84U29C4580M84U31C4580M84U30C4580MC224100nC225100nC226100nC227100n+VCC-VCCC229100n+5VDDGNDC24910uFUDASP IN/OUT SECTIONJP1PGND1248321U32ALM393567U32BLM393R1854K7+VCCR

44、2791KC222100nR1921MR3102M2R315820KD8ARB400DPEAK(FLICKER)MUTE(GLOW)VARIATION84U32CLM393C24733PC24633PL6G (4/4)AUX-SEND1RETURN1STEREO AUX3c5e1a4d2bX15JY-6351G-02-2503c5e1a4d2bX16JY-6351G-02-250RIGHT 1LEFT 1EFXRTN-LEFXRTN-RAUX-RTN1-LAUX-RTN1-RVR30W50KVR31W50KC2504.7uFC2514.7uFREVERB LEVELFX LEVEL1234AB

45、CD4321DCBA12345678CN12 5-8P12345678CN32.5-8P123CN12P-2.5L6PWRL6G+48 VG NDG ND- 15VG ND+15V+5VG ND+48 VG NDG ND- 15VG ND+15V+5VG ND+48 VG NDG ND- 15VG ND+15V+5VG ND+48 VG NDG ND- 15VG ND+15V+5VG NDADAPTORTG00077AC 110V/220VAC INPUTHA00027p o w e r sw i t c hL6PIN.SchTitelSizeFile:Date:Drawn By:SheetR

46、evisionModel No:8-Sep-2003 J.S.TASYL-6 Wiring Diagram11ofALTO L-6VER030710A4L-6PCB : L6G Bottom OverlayTop OverlayPCB : L6G Top LayerFinished product test procedure1. Instruments AP tester Double trace oscillometer Voltmeter2. Functions testa. Input the proper AC power supply, turn on the main power

47、, POWER LED will beilluminated (green). Then switch on PHANTOM power, PHANTOM LED will beilluminated (red), use a voltmeter to test the first pin and second pin of each MIC(MIC 1, MIC 2), the volt of phantom power should be 46V(2V). then power offthe switch.(Note: please turn off the switch when you

48、 are doing the steps of testprocedure as follows)b. Set all TRIM, LEVEL, EQ, AUX knobs to the position of 0, set PAN to theposition of LEFT. All buttons to the position of OFF.c. Input the signal from balanced sockets (MIC 1 & MIC 2), input the signal from tunbalanced sockets (LINE IN 3/4&LINE5/6),d

49、. Input the signal to the unbalanced AUX RENTURN sockets separately, test thebalanced output (LEFT & RIGHT) of MAIN MIX OUTPUT, which should be5dBu (1dB) THD + N0.003%.e. Insert the RCA plug to L& R of TAPE IN separately:First, press 2TK TO MIX button, test the unbalanced outputs (LEFT&RIGHT) ofMAIN

50、 MIX OUTPUT, CONTROL ROOM and PHONE (need stereo plug fortesting) separately, which should be 0dBu(1dB) THD + N0.006%.the output ofTAPE OUT is 0dBu(1dB) Then release 2TK TO MIX button (OFF), no input from CONTROL ROOM, when press 2TK TO CONTROL ROOM, test the output, which is 0dBu (2dB) THD + N0.002