Alto_ACL2_PRO_Compressor_Service_Manual电路图.pdf

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1、 Service Manual Model: ACL2 PRO Compressor/Limiter Version: 1.1 RadioFans.CN 收音机爱 好者资料库 CONTENTS 1. Specification 2. Block Diagram 3. Schematic Diagram 4. Printed Circuit Board 5. Wiring Diagram 6. Test Procedure 7. Electrical Parts List 8. Exploded Views & Mechanical Parts List 9. Troubleshooting 1

2、0. Notes RadioFans.CN 收音机爱 好者资料库 SPECIFICATIONS FOR ACL2 PRO INPUT Connectors XLR and 1/4” TRS (Pin 2 and Tip hot) Type Electronically balanced/unbalanced, RF filtered Impedance Balanced 50Kohm, Unbalanced25Kohm Nominal operating level +4dBu/-10dBV switchable Max input level +24dBu balanced and unba

3、lanced CMRR Typically50dB at 1KHz OUTPUT Connectors XLR and 1/4” TRS (Pin 2 and Tip hot) Type Electronically balanced/unbalanced, RF filtered Impedance Balanced 120ohm, Unbalanced60ohm Max output level +21dBu,+20dBm balanced and unbalanced SIDECHAIN INPUT Connectors 1/4” TRS (Tip hot) Type RF-reject

4、ing, DC de-coupled, unbalanced input Impedance 10Kohm Max input level +24dBu SIDECHAIN OUTPUT Connectors 1/4” TRS (Tip hot) Type RF-rejecting, DC de-coupled, unbalanced output Impedance 2Kohm Max input level +21dBu SYSTEM SPECIFICATIONS Bandwidth 20HZ to 20kHz, +0/-0.5dB Frequency Response 0.35Hz to

5、 200kHz,+0/-3dB Noise -95dBu, unweighted, 22Hz to 22kHz THD 0.008% Typical at +4dBu, 1kHz, unity gain 0.04% Typical at +20dBu, 1kHz, unity gain IMD 0.1% Typical SMPTE Crosstalk -100dB, 22Hz to 22Khz Stereo Coupling True RMS detection RadioFans.CN 收音机爱 好者资料库 1. Specification EXPANDER/GATE SECTION Typ

6、e Interactive Expander (Interactive Ratio Control) Threshold variable (OFF to +15dB) Ratio variable (1:1 to 1:8) Attack 1ms/50dB, program dependent Release variable (SLOW:100ms/1dB,FAST:100ms/100Db) COMPRESSOR SECTION Type Interactive Compressor (Interactive Knee Adaptation) Threshold variable (-40d

7、B to +20dB) Ratio variable (1:1 to :1) Threshold Characteristic variable (Interactive or Hard Knee) Manual Attack Time variable (0.5ms to 100ms / 20dB Manual Release Time variable from 0.05 ms to 5s / 20dB Auto Attack Time Typical 15ms at 10dB, 5ms at 20dB, 3ms at 30dB Auto Release Time Program depe

8、ndent, typical 125dB/s Output level variable (-20dB to +20dB) PEAK LIMITER SECTION Type Interactive Gain Control Peak Limiter Threshold variable (+4dB to OFF (+22dBu) Ratio :1 Stage 1 Limiter Type Clipper Attack Time “zero” Release Time “zero” Stage 2 Limiter Type Program Limiter Attack program depe

9、ndent, typ. 5ms Release program dependent, typ. 20dB/s FUNCTION SWITCHES SC EXTERN Switches the detector section to the external SC input. SC MON Monitoring the external SC input, disengaging the normal audio. INTERACTIVE Enables the “Interactive Knee Adaptation” characteristics. CONTOUR Allows for

10、frequency dependent detection. AUTO Enable the automatic and program dependent setting of the Attack-/Release times, disengaging the manual Attack-/Release controls. I/O METER Switches between input and output for the Level Meter. IN/OUT Relay controlled hard-bypass OPERATING LEVEL Changes the inter

11、nal reference level from +4 dBu to 10dBu. COUPLE Linking both channels for stereo operation. Channel 1 becomes master. INDICATORS GAIN REDUCTION 12 element LED display: 1/2/4/6/9/12/15/18/21/24/27/30 dB. INPUT/OUTPUT LEVEL 8 element LED display: -30/-24/-18/-12/-6/0/+3/+6/+9/+12/+18 dB Expander/Gate

12、 Threshold 2 LED for under “+” and above “-“ Compressor Threshold 3 LEDs for under “+”,Interactive “0” and above “-“ Peak Limiter Threshold 1 LED for indication of limiter function. Function switch LED indicator for each POWER SUPPLY USA/Canada 120VAC, 60Hz U.K./Australia 240VAC, 50Hz Europe 230VAC,

13、 50Hz Mains Voltages General Export Model 100-120VAC, 200-240VAC, 50-60Hz Fuse 100-120VAC : 400mA (SLOW-BLOW) 200-240VAC : 200mA (SLOW-BLOW) Power consumption 14 Watts Mains Connection Standard IEC receptacle PHYSICAL Dimension W(483.0)*D(198.0)*H(44.2) mm Net Weight 3.3Kg 1234 A B C D 4321 D C B A

14、2 1 3 4 3c 5e 1a 4d 2b I N P U T SGND 3c 5e 1a 4d 2b 3c 5e 1a 4d 2b O P E R A T I N G L E V E L - 1 0 d B v + 4 d B u 2 1 3 4 3c 5e 1a 4d 2b SGNDSGND O U T P U T O P E R A T I N G L E V E L - 1 0 d B v C O M P R E S S O R C O M P R E S S O R C O N T R O L E X P A N D E R / G A T E E X P A N D E R /

15、G A T E C O N T R O L P E A K L I M I T E R C O N T R O L L I M I T E R SGND SGND V C A + 4 d B u O U T P U T L E V E L G A I N R E D U C T I O N M E T E R S T E R E O L I N K C H 2 I S I D E N T I C A L T O C H 1 E X C E P T F O R S T E R E O L I N K M O D E E X P A N D E R / G A T E , C O M P R E

16、S S O R , L I M I T E R A R E C O N T R O L L E D B Y C H 1 I N S T E R O L I N K M O D E O U T P U T O U T P U T I N P U T S I D E C H A I N S I D E C H A I N R E T U R N S E N D F U L L W A V E R E C T I F IE R ? C O M P O U T B Y P A S S I N P U T 2.Black Diagram 12345678 A B C D 87654321 D C B A

17、 T5 HR R61 470R 1/4W R63 39K LD57 YE -15V LD55 GN 1 2 3 P SW5A PS-42E85L 7 8 9 P SW5C PS-42E85L 1 2 3 P SW3A PS-42E85L 4 5 6 P SW3B PS-42E85L LD58 GN LD59 GN LD56 YE LD53 RD 1 2 3 P SW7A PS-22E85L 1 2 3 P SW6A PS-22E85L 1 2 3 P SW4A PS-22E85L 1 2 3 P SW1A PS-22E85L +15V R62 15K CH1-REDUCTION CH1-LEV

18、EL CH2-REDUCTION CH2-LEVEL CLE20 DISPLAY SECTION FP-LED.SCH CH1-REDUCTION CH1-LEVEL CH2-REDUCTION CH2-LEVEL 12 13 14 IC17D TL064 D11 4148 D12 4148 D10 4148 R218 47K R219 47K 2 13 IC11A CA3086 4 53 IC11B CA3086 6 87 IC11C CA3086 9 1110 IC11D CA3086 3 2 1 IC12A TL064 12 13 14 IC12D TL064 R70 47K R71 4

19、7K 12 1413 IC11E CA3086 R75 10M R72 10M -15v 5 6 7 IC12B TL064 R78 10K 1% R79 10M R77 523K 1% 1 2 3 VR1 B50K +15V-15V -15V EX P A N D ER / G A T E T H R ES H O L D 10 9 8 IC12C TL064 R74 10K C3 47P R221 4K99 1% 5 6 7 IC13B TL064 R85 1K5 R81 20K R84 2K2 D1 4148 D2 4148 1 2 3 VR2 B10K C6 2.2uF D3 4148

20、 3 2 1 IC13A TL064 R87 100K R86 10K C5 3N3 -15V EX P A N D ER / G A T E 1: N R A T I O R80 3K 10 9 8 IC13C TL064 LD1 GN LD2 RD R83 6.8K 1/4W R82 6.8K 1/4W +15V T H R ES H O L D -15v 5 6 7 IC17B TL064 R127 523K 1% R125 560K R126 470R 1 2 3 VR8 A20K +15V R124 10K T H R ES H O L D P EA K L I MI T ER 10

21、 9 8 IC15C TL064 R66 2M2 R65 39K R67 1K -15V 12 13 14 IC13D TL064 R118 475R 1% R117 17K4 1% R94 7K15 1% D4 4148 1 6 7 IC16B LM339 C10 0.22uF C11 3.3uF C12 2.2uF C9 2.2uF R112 39K R113 20K D9 4148 3 2 1 IC15A TL064 R223 12K1 1% +15V R114 470R T7 HR 5 4 2 IC16A LM339 8 9 14 IC16C LM339 LD5 RD LD4 YE L

22、D3 GN D7 DZ 2.7V -15V T H R ES H O L D R103 3K 10 11 13 IC16D LM339 D8 4148 R109 47K R108 47K R111 10K R110 200R 1 2 3 VR5 A50K R107 4K7 12 13 14 IC15D TL064 R105 1K C8 220N(MEF) 1 2 3 VR4 B50K R A T I O n : 1 A T T A C K T6 HR C O M P R ES S O R / L I MI T ER C O MP R ES S O R / L I MI T ER R106 17

23、K4 1% 10 9 8 IC14C TL064 R92 10K R91 10K C7 10N R93 4K7 R90 20K T3 5 6 7 IC14B TL064 R98 220K R97 10K 1% R95 412K 1% R96 1M5 1 2 3 VR3 B50K -15V -15V +15V T H R ES H O L D D5 4148 C O MP R ES S O R / L I MI T ER 3 2 1 IC14A TL064 R100 523K 1% R99 523K 1% R102 287K 1% +15V D6 4148 R101 15K 10 11 12 P

24、 SW5D PS-42E85L R115 4K7 1 2 3 VR6 A50K 4 5 6 P SW5B PS-42E85L C O MP R ES S O R / L I MI T ER R EL EA S E 10 11 12 P SW3D PS-42E85L 7 8 9 P SW3C PS-42E85L R88 680K 12 13 14 IC14D TL064 -15V C45 47uF/50V R222 330K D44 4148 +15V 4 5 6 P SW7B PS-22E85L -15V 4 5 6 P SW1B PS-22E85L R64 1K5 1% 4 5 6 P SW

25、2B PS-22E85L 4 5 6 P SW6B PS-22E85L R68 24K9 1% R69 17K4 1% C1 0.33uF 4 5 6 P SW4B PS-22E85L C4 1uF R76 4M7 -15V T4 R73 10K 1 2 3 VR7 B50K +15V -15V O U T P U T G A I N C O MP R ES S O R / L I MI T ER X20-3 IC29-7 CH1-REDUCTION R104 12K1 1% R116 200R R220 1K CH1-LEVEL T3 T4 IC29-7 SW14-1 X20-3 CH2-L

26、EVEL CH2-REDUCTION CH1-REDUCTION T4-1 CH2 FP-CH2.SCH T3 T4 IC29-7 SW14-1 X20-3 CH2-LEVEL CH2-REDUCTION CH1-REDUCTION T4-1 C47 1uF -15V CH1-LEVEL CH1-REDUCTION T3 T4 IC29-7 SW14-1 X20-3 3 2 1 IC17A TL064 10 9 8 IC17C TL064 R129 47K R128 47K R131 47K R130 47K D13 4148 D14 4148 R132 4M7 R136 2K2 R135 2

27、K2 R133 4K7 R137 3K D16 4148 D17 4148 D18 4148 D45 4148 C16 0.22uF T8 BR T9 BR LD26 RD +15V +15V T H R ES H O L D L I M T3 C17 4.7uF/100V D15 4148 R134 1M -15V 5 6 7 IC15B TL064 R121 470K R122 470K R119 47K R120 220K C14 104P C13 104P SW14-1 1 2 3 P SW2A PS-22E85L +15V R123 1.5K LD54 RD R89 1M S C M

28、O N S C EX T I / 0 M ET ER S C F I L T ER B Y P A S S I N T ER A C T I V E I N T ER A C T I V E A U T O A U T O S C MO N S C EX T I / O MET ER B Y P A S S S C F I L T ER I N T ER A C T I V E A U T O ( - ) ( 0) ( + ) EX P A N D ER / G A T E ( - ) ( + ) 1 2 3 4 5 6 7 8 9 10 CN5 CN10P-2.0 C15 4.7uF/100

29、V EX P A N D ER / G A T E R EL EA S E C2 47N H R : 2 S A 1036( P N P ) B R : 2 S C 2 412 ( N P N ) F P - C H 1 M N . S c h T i t e l S i z e F i l e : D a t e : D r a w n B y : S h e e t R e v i s i o nM o d e l N o : 1 6 - S e p - 2 0 0 4 E A S O N Y A N G C O M P R E S S O R : F R O N T P A N E L

30、( C H 1 ) 31 o f A C L 2 P R OV E R 0 4 0 8 2 0A 3 R229 0R T4-1 3. Schematic Diagram 12345678 A B C D 87654321 D C B A 2 13 IC18A CA3086 4 53 IC18B CA3086 6 87 IC18C CA3086 9 1110 IC18D CA3086 3 2 1 IC19A TL064 5 6 7 IC19B TL064 12 13 14 IC19D TL064 R158 10M R165 10K 1% R164 10M R162 523K 1% 1 2 3 V

31、R9 B50K +15V-15V R155 47K R154 47K 5 6 7 IC20B TL064 10 9 8 IC20C TL064 R169 1K5 R166 3K R167 20K R168 2K2 D19 4148 D20 4148 C23 2.2uF D21 4148 R172 680K 3 2 1 IC20A TL064 R171 100K R170 10K C22 3N3 -15V12 13 14 IC21D TL064 10 9 8 IC21C TL064 R176 10K R175 10K C24 10N 5 6 7 IC21B TL064 R182 220K R18

32、1 10K 1% R179 412K 1% R180 1M5 1 2 3 VR11 B50K -15V -15V +15V T H R ES H O L D D22 4148 10 11 13 IC23D LM339 D27 4148 R194 47K R193 47K R196 10K R195 200R 1 2 3 VR13 A50K R192 4K7 12 13 14 IC22D TL064 R190 1K C25 220N(MEF) 1 2 3 VR12 B50K 3 2 1 IC21A TL064 R186 523K 1% R183 523K 1% R A T I O n : 1 A

33、 T T A C K T15 HR 12 13 14 IC20D TL064 R203 475R 1% R202 17K4 1% R178 7K15 1% R177 4K7 D29 4148 10 9 8 IC19C TL064 R159 10K C20 47P -15V R161 4K99 1% 5 4 2 IC23A LM339 C27 0.22uF C28 3.3uF C29 2.2uF C26 2.2uF R197 39K R198 20K D28 4148 3 2 1 IC22A TL064 1 6 7 IC23B LM339 8 9 14 IC23C LM339 LD29 GN L

34、D30 YE LD31 RD D24 DZ 2.7V -15V R184 287K 1% +15V D23 4148 T H R ES H O L D R187 3K T10 HR R145 470R 1/4W R147 39K D25 4148 D26 4148 SW16A-2 R185 15K R200 4K7 R199 470R 1 2 3 VR14 A50K T16 HR R228 12K1 1% +15V 5 6 7 IC22B TL064 10 9 8 IC22C TL064 R150 2M2 R149 39K R151 1K -15V -15V+15V 1 2 3 VR15 B5

35、0K +15V -15V CH2-REDUCTION C O U P L E O U T P U T G A I N CH1-REDUCTION X20-3 -15V 10 11 12 P SW13D PS-42E85L 4 5 6 P SW13B PS-42E85L 4 5 6 P SW9B PS-22E85L R148 1K5 1% 4 5 6 P SW10B PS-22E85L 4 5 6 P SW14B PS-22E85L C46 47uF/50V R227 330K D43 4148 -15V 4 5 6 P SW15B PS-22E85L 10 11 12 P SW11D PS-4

36、2E85L 7 8 9 P SW11C PS-42E85L R152 24K9 1% R153 17K4 1% C18 0.33uF 4 5 6 P SW12B PS-22E85L LD62 RD R204 1.5K +15V SW14-1 1 2 3 P SW10A PS-22E85L LD65 YE -15V LD63 GN 1 2 3 P SW13A PS-42E85L 7 8 9 P SW13C PS-42E85L 1 2 3 P SW11A PS-42E85L 4 5 6 P SW11B PS-42E85L LD66 GN LD67 GN LD64 YE LD61 RD 1 2 3

37、P SW15A PS-22E85L 1 2 3 P SW14A PS-22E85L 1 2 3 P SW12A PS-22E85L 1 2 3 P SW9A PS-22E85L EX P A N D ER / G A T E EX P A N D ER / G A T E 1: N R A T I O T H R ES H O L D C O M P R ES S O R / L I M I T ER C O M P R ES S O R / L I M I T ER C O M P R ES S O R / L I M I T ER C O M P R ES S O R / L I MI T

38、 ER C O MP R ES S O R / L I M I T ER R EL EA S E +15V R146 15K R191 17K4 1% R174 20K T3-1 +15V R173 1M R157 10K R189 12K1 1% R201 200R SW16A-2 12 1413 IC18E CA3086 12 R156 10M-15v 1 2 3 P SW8A PS-42E85L 7 8 9 P SW8C PS-42E85L 12 13 14 IC24D TL064 D31 4148 D32 4148 D30 4148 R224 47K R225 47K R226 1K

39、CH2-LEVEL C48 1uF -15V C O U P L E R160 4M7 C21 1uF -15V T4-1 3 2 1 IC24A TL064 10 9 8 IC24C TL064 R209 47K R208 47K R211 47K R210 47K R212 4M7 R216 2K2 R215 2K2 R213 4K7 R217 3K D33 4148 D34 4148 D36 4148 D37 4148 D38 4148 D42 4148 C31 0.22uF C30 4.7uF/100V T17 BR T18 BR LD52 RD +15V +15V T H R ES

40、H O L D L I M T3-1 C32 4.7uF/100V D35 4148 R214 1M -15V C O U P L E 4 5 6 P SW8B PS-42E85L IC29-7 P EA K L I M I T ER T H R ES H O L D R205 10K +15V 1 2 3 VR16 A20K R207 470R R206 560K R188 523K 1% 5 6 7 IC24B TL064 IC34-2 IC34-2 T13 HR T14 BR -15V R142 47K R141 47K R140 1M D39 4148 LD27 GN LD28 RD

41、D41 4148 R144 6.8K 1/4W R143 6.8K 1/4W +15V D40 4148 T3 S 1 D 2 G 3 T11 PMBFJ112 T12 PMBFJ112 -15v T4 T H R ES H O L D R139 100K LD60 RD -15V +15V 10 11 12 P SW8D PS-42E85L C O U P L E R138 4.7K 1/4W D49 D49 S C M O N S C EX T I / O M ET ER S C F I L T ER B Y P A S S I N ET R A C T I V E I N ET R A

42、C T I V E A U T O A U T O S C MO N S C EX T I / O M ET ER B Y P A S S S C F I L T ER I N T ER A C T I V E A U T O 1 2 3 VR10 B10K ( + )( - ) ( 0) ( - )( + ) EX P A N D ER / G A T E 1 2 3 4 5 6 7 8 9 10 11 12 CN6 CN12P-2.0 EX P A N D ER / G A T E R EL EA S E C19 47N H R : 2 S A 1036( P N P ) B R : 2

43、S C 2 412 ( N P N ) F P - C H 2 . S C H T i t e l S i z e F i l e : D a t e : D r a w n B y : S h e e t R e v i s i o nM o d e l N o : 1 6 - S e p - 2 0 0 4 E A S O N Y A N G C O M P R E S S O R : F R O N T P A N E L ( C H 2 ) 32 o f A C L 2 P R O V E R 0 4 0 8 2 0 A 3 R163 0R T4-1 T3-1 12345678 A B

44、 C D 87654321 D C B A 5 4 2 IC6A LM339 1 6 7 IC6B LM339 8 9 14 IC6C LM339 10 11 13 IC6D LM339 5 4 2 IC7A LM339 1 6 7 IC7B LM339 8 9 14 IC7C LM339 10 11 13 IC7D LM339 5 4 2 IC8A LM339 1 6 7 IC8B LM339 8 9 14 IC8C LM339 10 11 13 IC8D LM339 5 4 2 IC9A LM339 1 6 7 IC9B LM339 8 9 14 IC9C LM339 10 11 13 I

45、C9D LM339 5 4 2 IC10A LM339 1 6 7 IC10B LM339 8 9 14 IC10C LM339 10 11 13 IC10D LM339 LD32 RD LD33 RD LD34 RD LD35 RD LD36 RD LD37 RD LD38 RD LD39 RD LD40 RD LD41 RD LD42 RD LD43 RD LD44 GN LD45 GN LD46 GN LD47 GN LD48 GN LD49 YE LD50 YE LD51 RD R34 1K R35 1K R36 2K R37 2K R38 3K R39 3K R40 3K R41 3

46、K R42 3K R43 3K R44 3K R45 3K R46 33K R50 110R R51 100R R52 200R R53 402R 1% R54 806R 1% R55 1K58 1% R56 3K24 1% R57 6K34 1% R58 8K06 1% R33 39K R32 15K R31 1.8K 1/4W R49 47K R48 30K R47 1.8K 1/4W +15V+15V -15V -15V +15V CH2-REDUCTION 312 IC1E LM339 312 IC2E LM339 312 IC3E LM339 312 IC4E LM339 312 I

47、C5E LM339 312 IC16E LM339 411 IC12E TL064 411 IC13E TL064 411 IC14E TL064 411 IC15E TL064 411 IC17E TL064 C34 104P C35 104P C36 104P C37 104P +15V -15V G A I N R ED U C T I O N ( d B ) 5 4 2 IC1A LM339 1 6 7 IC1B LM339 8 9 14 IC1C LM339 10 11 13 IC1D LM339 5 4 2 IC2A LM339 1 6 7 IC2B LM339 8 9 14 IC

48、2C LM339 10 11 13 IC2D LM339 5 4 2 IC3A LM339 1 6 7 IC3B LM339 8 9 14 IC3C LM339 10 11 13 IC3D LM339 5 4 2 IC4A LM339 1 6 7 IC4B LM339 8 9 14 IC4C LM339 10 11 13 IC4D LM339 5 4 2 IC5A LM339 1 6 7 IC5B LM339 8 9 14 IC5C LM339 10 11 13 IC5D LM339 LD6 RD LD7 RD LD8 RD LD9 RD LD10 RD LD11 RD LD12 RD LD13 RD LD14 RD LD15 RD LD16 RD LD17 RD LD18 GN LD19 GN LD20 GN LD21 GN LD22 GN LD23 YE LD24 YE LD25 RD I N P U T / O U T P U T L EV EL ( d B ) R28 8K06 1% R27 6K34 1% R26 3K24 1% R25 1K58 1% R24 806R 1% R23 402R 1% R22 200R R21 100R R20 110R +15V-15V -15V R16 33K R15 3K R14 3K R13 3K R12 3K