Alto_Gate_Expander_Service_Manual电路图.pdf

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1、Service Manual Version: 1.1 Model: ALTO GATE AUDIO INTERACTIVE / QUAD EXPANDER / GATE 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 Lis

2、t 9. Notes RadioFans.CN 收音机爱 好者资料库 1. SPECIFICATIONSSPECIFICATIONS AUDIO INPUTAUDIO INPUT ConnectorsXLR and 1/4 jack TypeRF filtered , servo-balanced input Max. Input Level+21 dBu balanced and unbalanced Impedance50kOhm balanced , 25kOhm unbalanced CMRRtyp. 40 dB, 55dB1KHz AUDIO OUTPUTAUDIO OUTPUT C

3、onnectorsXLR and 1/4 jack TypeElectronically servo-balanced output stage Max. Output Level+21 dBu balanced and unbalanced Impedance60 Ohm balanced , 30 Ohm unbalanced FUNCTION SWITCHESFUNCTION SWITCHES Monitormonitors the side-chain key signal Couple activates FlexLink function Modegate/expander swi

4、tch Filteractivates the side-chain Filter INDICATORSINDICATORS Gain Reduction8-segment LED display : 1/3/6/10/15/20/30/40 dB - indicatorsignal is above threshold Hold indicatorsignal is reaches threshold + indicatorsignal is below threshold LED indicator for each function switch GATE SECTIONGATE SEC

5、TION TypeUTR ( Ultra Transient Response ) gate Rangevariable ( 0 to -80 dB ) Thresholdvariable ( BYPASS to +10dBu ) Attack program dependent Holdvariable ( 0 to 4sec ) Releasevariable ( 0.05 to 4 sec ) EXPANDER SECTIONEXPANDER SECTION TypeIRC ( Interactive Ratio Control ) expander Attackprogram depe

6、ndent Ratiovariable ( 1:1 to 1:4 ) PARAMETRIC SC FILITERPARAMETRIC SC FILITER Frequencyvariable ( 100 Hz to 10KHz ) Bandwidthvariable ( 2.3 to 0.7 Oct. ) SYSTEM SPECIFICATIONSSYSTEM SPECIFICATIONS Frequency Respone10Hz to 100KHz +/- 3 dB ( RANGE TO - 80 dB ) Noise90dBu , unweighted , 22Hz to 22KHz T

7、HD0.02% typ. +4dBu , 1KHz , GAIN 1 IMD0.01% typ. SMPTE Crosstalk-100 dB , 22Hz to 22KHz POWER SUPPLYPOWER SUPPLY AC 95-120 Vac60Hz Fuse : 400mA ( slow blow ) AC 210-240 Vac50Hz Fuse : 200mA ( slow blow ) POWER CONSUMPTIONPOWER CONSUMPTION 18 Watts DIMENSIONSDIMENSIONS 483(W) * 194.5(D) * 44(H) mm (

8、19 * 7.7 * 1.7 ) WEIGHTWEIGHT3.3kg SPECIFICATIONS FRO ALTO GATESPECIFICATIONS FRO ALTO GATE RadioFans.CN 收音机爱 好者资料库 123456 A B C D 654321 D C B A BLOCK DIAGRAM 3c 5e 1a 4d 2b INPUT2 PHONEJACK5 (5-PIN) 2 1 3 4 INPUT2 CN-BAL-FEMALE SGND SGND 3c 5e 1a 4d 2b INPUT3 PHONEJACK5 (5-PIN) 2 1 3 4 INPUT3 CN-B

9、AL-FEMALE SGND SGND 3c 5e 1a 4d 2b INPUT4 PHONEJACK5 (5-PIN) 2 1 3 4 INPUT4 CN-BAL-FEMALE SGND SGND 3c 5e 1a 4d 2b INPUT1 PHONEJACK5 (5-PIN) 2 1 3 4 INPUT1 CN-BAL-FEMALE SGND SGND VCA MON. EXPANDER/GATERANGE/RADIOPARAMETRIC SC FILTER GAIN REDUCTION MON. RANGE/RADIO GAIN REDUCTION MON. EXPANDER/GATER

10、ANGE/RADIOPARAMETRIC SC FILTER GAIN REDUCTION MON. EXPANDER/GATERANGE/RADIOPARAMETRIC SC FILTER GAIN REDUCTION INPUT 1 INPUT 2 INPUT 3 INPUT 4 3c 5e 1a 4d 2b OUTPUT1 PHONEJACK5 (5-PIN) SGND OUTPUT 1 3c 5e 1a 4d 2b OUTPUT1 PHONEJACK5 (5-PIN) SGND OUTPUT 2 3c 5e 1a 4d 2b OUTPUT1 PHONEJACK5 (5-PIN) SGN

11、D OUTPUT 3 3c 5e 1a 4d 2b OUTPUT1 PHONEJACK5 (5-PIN) SGND OUTPUT 4 2 1 3 4OUTPUT 1 CN-BAL-MALE 2 1 3 4OUTPUT 2 CN-BAL-MALE 2 1 3 4OUTPUT 3 CN-BAL-MALE 2 1 3 4OUTPUT 4 CN-BAL-MALE VCA EXPANDER/GATEPARAMETRIC SC FILTER VCA VCA CHANNEL 2 COUPLE CHANNEL 3 COUPLE CHANNEL 4 COUPLE 2. Block Diagram 1234567

12、8 A B C D 87654321 D C B A CH1_IN 3 2 1 IC1A TL064 5 6 7 IC1B TL064 10 9 8 IC1C TL064 12 13 14 IC1D TL064 411 IC3E TL064 R177 51K1 R14 10K0 R227 1K00 R248 6K34 R13 10K0 R15 1K00 R178 51K1 R115 20K0 R16 10K0 1 2 3 VR17 C500K C29 47uF/25V G1 C19 20P G1 C42 15N C41 15N G1 C20 20P G1 C30 47uF/25V CH1_OU

13、T_P CH1_OUT_C R116 20K0 G1 1 2 3 SW6A SC_FILTER C1 0.33uF/50V R1 10K0 2 13 IC16A CA3086 4 53 IC16B CA3086 6 87 IC16C CA3086 9 1110 IC16D CA3086 12 1413 IC16E CA3086 3 2 1 IC3A TL064 5 6 7 IC3B TL064 10 9 8 IC3C TL064 12 13 14 IC3D TL064 411 IC1E TL064 G1 R65 10M0 R73 2M7 C5 1uF/50V G1 G1 1 2 3 VR9 W

14、50K R77 549K R97 5K62 R89 2M21 R54 47K5 R53 47K5 G1 -15V -15V +15V BANDWIDTH FREQUENCY THRESHOLD R137 2K00 R133 680R 5% R129 390R 5% R105 1K50 R109 20K0 D1 4148 D2 4148 C13 0.47uF/50V G1 G1 5 4 2 IC2A LM339 1 6 7 IC2B LM339 8 9 14 IC2C LM339 10 11 13 IC2D LM339 312 IC2E LM339 R49 100K R45 47R0 R61 5

15、1K1 R3 10K0 R2 10K0 R138 2K00 R4 10K0 R101 51K1 R93 549K R81 475R G1 +15V C9 4.7uF/100V +15V +15V -15V-15V G1 G1 1 2 3 VR1 A1M HOLD C17 10N Ya1 13 Ya0 14 Zb 15 Za 12 Yb1 1 Yc0 5 Yb0 2 Zc 4 Yc1 3 E 6 Sc 9 Sb 10 Sa 11 IC14A HEF4053 16 8 7 VSS VEE VDD IC14B HEF4053 3 2 1 IC4A TL064 5 6 7 IC4B TL064 10

16、9 8 IC4C TL064 12 13 14 IC4D TL064 1 2 3 VR13 A5K D7 4148 G1 1 2 3 SW7A MODE G1 -15V -15V D4 4148 G1 R193 100K R174 51K1 R173 51K1 R169 100K R161 120K 5% R157 3K32 G1 D6 4148 R149 3K01 R165 200R R189 100K R17 10K0 G1 -15V D3 4148 C49 47N D5 4148 1 2 3 VR3 A1M R5 10K0 TR1 HR G1 +15V G1 3 2 1 IC5A TL0

17、64 5 6 7 IC5B TL064 411 IC5E TL064 R194 100K R252 36K0 R228 1K00 G1 G1 LINK-CH1 CH1_IN CH1_OUT_C TR2 HR R213 15K0 R221 560R 1/4W R214 39K2 G1 +15V 4 5 6 P SW5B MON 4 5 6 P SW6B SC_FILTER 4 5 6 P SW7B MODE LED2 YEL LED18 RED LED10 GR -15V R6 10K0 R150 (3K01) R201 (3K92) TR9 BR G1 +15V LED1 YEL LED17

18、RED LED9 GR D10 4148 D9 4148 D8 4148 ZD1 2V7 1 2 3 SW5A MON CH1_OUT_P CH1_IN_R CH1_OUT_E CH1_CTL R66 10M0 -15V 411 IC4E TL064 5 4 2 IC10A LM339 1 6 7 IC10B LM339 8 9 14 IC10C LM339 10 11 13 IC10D LM339 312 IC10E LM339 5 4 2 IC11A LM339 1 6 7 IC11B LM339 8 9 14 IC11C LM339 10 11 13 IC11D LM339 312 IC

19、11E LM339 R139 2K00 R202 4K02 R204 4K02 R238 4K99 R239 4K99 R256 10K0 R257 10K0 R264 28K0 R225 1K00 R82 1.2K 1/4W R111 30K9 R110 47K5 C31 47uF/25V LED30 RED LED29 RED LED28 RED LED27 RED LED26 RED LED25 RED LED20 RED LED19 RED R268 47R0 TR13 HR +15V G1 G1 -15V -15V -15V +15VG1 -15V D9 D9 R272 2M21 -

20、15V 1 2 3 VR21A E100K 4 5 6 VR21B E100K RELEASE C53 100N RANGE FP_CH1.Sch Titel Size File: Date: Drawn By: Sheet RevisionModel No: 15-May-2003 M. J. YANG GATEFP 51of ALTO GATE VER030505 A3 1 2 3 4 5 6 7 8 9 10 11 12 CN1 CON12 CH1_OUT_E CH1_IN CH1_IN_R CH1_CTL CH2_OUT_E CH2_IN CH2_IN_R CH2_CTL 1 2 3

21、4 5 6 7 8 9 10 11 12 CN2 CON12 CH3_OUT_E CH3_IN CH3_IN_R CH3_CTL CH4_OUT_E CH4_IN CH4_IN_R CH4_CTL G1 G2 G3 G4 -15V+15V 3. Schematic Diagram 12345678 A B C D 87654321 D C B A CH2_IN 3 2 1 IC6A TL064 5 6 7 IC6B TL064 10 9 8 IC6C TL064 12 13 14 IC6D TL064 R181 51K1 R40 10K0 R231 1K00 R251 6K34 R39 10K

22、0 R41 1K00 R182 51K1 R127 20K0 R42 10K0 1 2 3 VR19 C500K C37 47uF/25V G2 C26 20P G2 C46 15N C45 15N G2 C27 20P G2C35 47uF/25V CH2_OUT_P CH2_OUT_C R128 20K0 G2 1 2 3 SW2A SC_FILTER C3 0.33uF/50V R23 10K0 2 13 IC17A CA3086 4 53 IC17B CA3086 6 87 IC17C CA3086 9 1110 IC17D CA3086 12 1413 IC17E CA3086 3

23、2 1 IC8A TL064 5 6 7 IC8B TL064 10 9 8 IC8C TL064 12 13 14 IC8D TL064 411 IC6E TL064 G2 R69 10M0 R75 2M7 C7 1uF/50V G2 G2 1 2 3 VR12 W50K R80 549K R99 5K62 R91 2M21 R58 47K5 R57 47K5 G2 -15V -15V +15V BANDWIDTH FREQUENCY THRESHOLD R143 2K00 R135 680R 5% R131 390R 5% R107 1K50 R119 20K0 D22 4148 D23

24、4148 C15 0.47uF/50V G2 G2 5 4 2 IC7A LM339 1 6 7 IC7B LM339 8 9 14 IC7C LM339 10 11 13 IC7D LM339 312 IC12E LM339 R51 100K R47 47R0 R63 51K1 R25 10K0 R24 10K0 R144 2K00 R26 10K0 R103 51K1 R95 549K R85 475R G2 +15V C11 4.7uF/100V +15V +15V -15V-15V G2 G2 1 2 3 VR5 A1M HOLD C23 10N Ya1 13 Ya0 14 Zb 15

25、 Za 12 Yb1 1 Yc0 5 Yb0 2 Zc 4 Yc1 3 E 6 Sc 9 Sb 10 Sa 11 IC15A HEF4053 16 8 7 VSS VEE VDD IC15B HEF4053 3 2 1 IC9A TL064 5 6 7 IC9B TL064 10 9 8 IC9C TL064 12 13 14 IC9D TL064 1 2 3 VR15 A5K D28 4148 G2 1 2 3 SW3A MODE G2 -15V -15V D25 4148 G2 R197 100K R184 51K1 R183 51K1 R171 100K R163 120K 5% R15

26、9 3K32 G2 D27 4148 R153 3K01 R167 200R R191 100K R27 10K0 G2 -15V D24 4148 C51 47N D26 4148 1 2 3 VR6 A1M R28 10K0 TR5 HR G2 +15V G2 4 5 6 P SW4B COU 10 9 8 IC5C TL064 12 13 14 IC5D TL064 411 IC9E TL064 R198 100K R254 36K0 R232 1K00 G2 G2 LINK-CH1 CH2_IN CH2_OUT_C TR6 HR R217 15K0 R223 560R 1/4W R21

27、8 39K2 G2 +15V 4 5 6 P SW1B MON 4 5 6 P SW2B SC_FILTER 4 5 6 P SW3B MODE LED6 YEL LED40 RED LED14 GR -15V 1 2 3 SW4A COU D32 4148 LED39 RED R242 4.7K 1/4W R29 10K0 R154 (3K01) R207 (3K92) TR11 BR +15V G2 +15V LED5 YEL LED38 RED LED13 GR D31 4148 D30 4148 D29 4148 ZD3 2V7 -15V 1 2 3 SW1A MON CH2_OUT_

28、P CH2_IN_R CH2_OUT_E CH2_CTL R70 10M0 -15V 411 IC8E TL064 5 4 2 IC12A LM339 1 6 7 IC12B LM339 8 9 14 IC12C LM339 10 11 13 IC12D LM339 312 IC13E LM339 5 4 2 IC13A LM339 1 6 7 IC13B LM339 8 9 14 IC13C LM339 10 11 13 IC13D LM339 312 IC7E LM339 R145 2K00 R208 4K02 R209 4K02 R243 4K99 R244 4K99 R261 10K0

29、 R262 10K0 R266 28K0 R233 1K00 R86 1.2K 1/4W R121 30K9 R120 47K5 C38 47uF/25V LED57 RED LED56 RED LED55 RED LED45 RED LED44 RED LED43 RED LED42 RED LED41 RED R270 47R0 TR15 HR +15V G2 G2 -15V -15V -15V +15VG2 -15V D30 D30 R273 2M21 -15V 1 2 3 VR23A E100K 4 5 6 VR23B E100K LINK-CH2 RELEASE C54 100N R

30、ANGE FP_CH2.Sch Titel Size File: Date: Drawn By: Sheet RevisionModel No: 15-May-2003 M. J. YANG GATEFP 52of ALTO GATE VER030505 A3 12345678 A B C D 87654321 D C B A 411 IC29E TL064 1 2 3 SW9A SC_FILTER C2 0.33uF/50V R7 10K0 2 13 IC31A CA3086 4 53 IC31B CA3086 6 87 IC31C CA3086 9 1110 IC31D CA3086 12

31、 1413 IC31E CA3086 3 2 1 IC29A TL064 5 6 7 IC29B TL064 10 9 8 IC29C TL064 12 13 14 IC29D TL064 411 IC27E TL064 G3 R67 10M0 R74 2M7 C6 1uF/50V G3 G3 1 2 3 VR10 W50K R78 549K R98 5K62 R90 2M21 R56 47K5 R55 47K5 -15V -15V +15V THRESHOLD R140 2K00 R134 680R 5% R130 390R 5% R106 1K50 R112 20K0 D11 4148 D

32、12 4148 C14 0.47uF/50V G3 G3 5 4 2 IC28A LM339 1 6 7 IC28B LM339 8 9 14 IC28C LM339 10 11 13 IC28D LM339 312 IC28E LM339 R50 100K R46 47R0 R62 51K1 R9 10K0 R8 10K0 R141 2K00 R10 10K0 R102 51K1 R94 549K R83 475R G3 +15V C10 4.7uF/100V +15V +15V -15V-15V G3 G3 1 2 3 VR2 A1M HOLD C18 10N Ya1 13 Ya0 14

33、Zb 15 Za 12 Yb1 1 Yc0 5 Yb0 2 Zc 4 Yc1 3 E 6 Sc 9 Sb 10 Sa 11 IC32A HEF4053 16 8 7 VSS VEE VDD IC32B HEF4053 3 2 1 IC30A TL064 5 6 7 IC30B TL064 10 9 8 IC30C TL064 12 13 14 IC30D TL064 1 2 3 VR14 A5K D17 4148 G3 1 2 3 SW10A MODE G3 -15V -15V D14 4148 G3 R195 100K R176 51K1 R175 51K1 R170 100K R162 1

34、20K 5% R158 3K32 G3 D16 4148 R151 3K01 R166 200R R190 100K R22 10K0 G3 -15V D13 4148 C50 47N D15 4148 1 2 3 VR4 A1M R11 10K0 TR3 HR G3 +15V G3 4 5 6 P SW11B COU 3 2 1 IC22A TL064 5 6 7 IC22B TL064 R196 100K R253 36K0 R230 1K00 G3 G3 LINK-CH2 CH3_IN CH3_OUT_C TR4 HR R215 15K0 R222 560R 1/4W R216 39K2

35、 G3 +15V 4 5 6 P SW8B MON 4 5 6 P SW9B SC_FILTER 4 5 6 P SW10B MODE LED4 YEL LED23 RED LED12 GR -15V 1 2 3 SW11A COU D21 4148 LED22 RED R237 4.7K 1/4W R12 10K0 R152 (3K01) R203 (3K92) TR10 BR +15V G3 +15V LED3 YEL LED21 RED LED11 GR D20 4148 D19 4148 D18 4148 ZD2 2V7 -15V 1 2 3 SW8A MON CH3_OUT_P CH

36、3_IN_R CH3_OUT_E CH3_CTL R68 10M0 -15V 411 IC30E TL064 5 4 2 IC33A LM339 1 6 7 IC33B LM339 8 9 14 IC33C LM339 10 11 13 IC33D LM339 312 IC33E LM339 5 4 2 IC34A LM339 1 6 7 IC34B LM339 8 9 14 IC34C LM339 10 11 13 IC34D LM339 312 IC34E LM339 R142 2K00 R205 4K02 R206 4K02 R240 4K99 R241 4K99 R258 10K0 R

37、259 10K0 R265 28K0 R226 1K00 R84 1.2K 1/4W R114 30K9 R113 47K5 C34 47uF/25V LED37 RED LED36 RED LED35 RED LED34 RED LED33 RED LED32 RED LED31 RED LED24 RED R269 47R0 TR14 HR +15V G3 G3 -15V -15V -15V +15VG3 G3 -15V D19 D19 R274 2M21 -15V LINK-CH3 CH3_IN 3 2 1 IC27A TL064 5 6 7 IC27B TL064 10 9 8 IC2

38、7C TL064 12 13 14 IC27D TL064 R179 51K1 R19 10K0 R229 1K00 R249 6K34 R18 10K0 R20 1K00 R180 51K1 R117 20K0 R21 10K0 1 2 3 VR18 C500K C32 47uF/25V G3 C21 20P G3 C44 15N C43 15N G3 C22 20P G3 C33 47uF/25V CH3_OUT_P CH3_OUT_C R118 20K0 G3 BANDWIDTH FREQUENCY 1 2 3 VR22A E100K 6 5 4 VR22B E100K RANGE RE

39、LEASE C55 100N FP_CH3.Sch Titel Size File: Date: Drawn By: Sheet RevisionModel No: 15-May-2003 M. J . YANG GATEFP 53of ALTO GATE CER030505 A3 12345678 A B C D 87654321 D C B A FP_CH4.Sch Titel Size File: Date: Drawn By: Sheet RevisionModel No: 15-May-2003 M. J. YANG GATEFP 54of ALTO GATE VER030505 A

40、3 411 IC20E TL064 1 2 3 SW13A SC_FILTER C4 0.33uF/50V R30 10K0 2 13 IC26A CA3086 4 53 IC26B CA3086 6 87 IC26C CA3086 9 1110 IC26D CA3086 12 1413 IC26E CA3086 3 2 1 IC20A TL064 5 6 7 IC20B TL064 10 9 8 IC20C TL064 12 13 14 IC20D TL064 411 IC18E TL064 G4 R71 10M0 R76 2M7 C8 1uF/50V G4 G4 1 2 3 VR11 W5

41、0K R79 549K R100 5K62 R92 2M21 R60 47K5 R59 47K5 G4 -15V -15V +15V THRESHOLD R146 2K00 R136 680R 5% R132 390R 5% R108 1K50 R122 20K0 D33 4148 D34 4148 C16 0.47uF/50V G4 G4 5 4 2 IC19A LM339 1 6 7 IC19B LM339 8 9 14 IC19C LM339 10 11 13 IC19D LM339 312 IC19E LM339 R52 100K R48 47R0 R64 51K1 R34 10K0

42、R33 10K0 R147 2K00 R35 10K0 R104 51K1 R96 549K R87 475R G4 +15V C12 4.7uF/100V +15V +15V -15V-15V G4 G4 1 2 3 VR7 A1M HOLD C25 10N Ya1 13 Ya0 14 Zb 15 Za 12 Yb1 1 Yc0 5 Yb0 2 Zc 4 Yc1 3 E 6 Sc 9 Sb 10 Sa 11 IC23A HEF4053 16 8 7 VSS VEE VDD IC23B HEF4053 3 2 1 IC21A TL064 5 6 7 IC21B TL064 10 9 8 IC2

43、1C TL064 12 13 14 IC21D TL064 1 2 3 VR16 A5K D39 4148 G4 1 2 3 SW14A MODE G4 -15V -15V D36 4148 G4 R199 100K R188 51K1 R187 51K1 R172 100K R164 120K 5% R160 3K32 G4 D38 4148 R155 3K01 R168 200R R192 100K R36 10K0 G4 -15V D35 4148 C52 47N D37 4148 1 2 3 VR8 A1M R37 10K0 TR7 HR G4 +15V G4 4 5 6 P SW15

44、B COU 10 9 8 IC22C TL064 12 13 14 IC22D TL064 411 IC22E TL064 R200 100K R255 36K0 R235 1K00 G4 G4 LINK-CH3 CH4_IN CH4_OUT_C TR8 HR R219 15K0 R224 560R 1/4W R220 39K2 G4 +15V 4 5 6 P SW12B MON 4 5 6 P SW13B SC_FILTER 4 5 6 P SW14B MODE LED8 YEL LED48 RED LED16 GR -15V 1 2 3 SW15A COU D43 4148 LED47 R

45、ED R245 4.7K 1/4W R38 10K0 R156 (3K01) R210 (3K92) TR12 BR +15V G4 +15V LED7 YEL LED46 RED LED15 GR D42 4148 D41 4148 D40 4148 ZD4 2V7 -15V 1 2 3 SW12A MON CH4_OUT_P CH4_IN_R CH4_OUT_E CH4_CTL R72 10M0 -15V 411 IC21E TL064 5 4 2 IC24A LM339 1 6 7 IC24B LM339 8 9 14 IC24C LM339 10 11 13 IC24D LM339 3

46、12 IC24E LM339 5 4 2 IC25A LM339 1 6 7 IC25B LM339 8 9 14 IC25C LM339 10 11 13 IC25D LM339 312 IC25E LM339 R148 2K00 R211 4K02 R212 4K02 R246 4K99 R247 4K99 R260 10K0 R263 10K0 R267 28K0 R236 1K00 R88 1.2K 1/4W R126 30K9 R125 47K5 C40 47uF/25V LED59 RED LED58 RED LED54 RED LED53 RED LED52 RED LED51

47、RED LED50 RED LED49 RED R271 47R0 TR16 HR +15V G4 G4 -15V -15V -15V +15VG4 -15V D41 D41 R275 2M21 -15V RELEASE RANGE CH4_IN 3 2 1 IC18A TL064 5 6 7 IC18B TL064 10 9 8 IC18C TL064 12 13 14 IC18D TL064 R185 51K1 R43 10K0 R234 1K00 R250 6K34 R31 10K0 R32 1K00 R186 51K1 R123 20K0 R44 10K0 1 2 3 VR20 C50

48、0K C39 47uF/25V G4 C24 20P 1 2 3 VR24A E100K G4 C48 15N C47 15N G4 C28 20P G4C36 47uF/25V CH4_OUT_P CH4_OUT_C R124 20K0 G4 BANDWIDTH FREQUENCY 6 5 4 VR24B E100K C56 100N 12345678 A B C D 87654321 D C B A 3c 5e 1a 4d 2b PJ6 PHONEJACK5 (5-PIN) 3c 5e 1a 4d 2bPJ5 PHONEJACK5 (5-PIN) 2 1 3 4 CN6 CN-BAL-FE

49、MALE 2 1 3 4 CN10 CN-BAL-MALE 5 18 -IN 6 2 4 73 V+ V- GND EC+ EC- SYM OUT IC10 THAT2150A R16 10K0 R15 10K0 R37 20K0 R17 10K0 R18 10K0 R19 12K1 R36 20K0 R35 20K0 C7 47P C8 47P C19 10P C20 10P C29 47uF/25V R47 200R R59 12K1 R55 150K 5% R43 4K75 R51 47R VR3 50K +15V -15V -15V +15V C9 47P C30 47uF/25V R65 3K16 R91 5K76 R21 10K0 R75 6K04 R97 60R4 R20 10K0 R98 60R4 C21 10P R82 4K53 R66 3K16 R71 2K67 C39 470P C35 470P R81 4K53 R87 3K24 CH3_IN CH3_CTL CH3_OUT_ECH3_IN_R 1 2 3 4 5 6 7 8 9 10 11 12 CN2 CN2.0-12P-180 3c 5e 1a 4d 2b PJ4 PHONEJACK5 (5-PIN) 3c 5e 1a 4d 2bPJ3 PHONEJ