DDA dmr12-schematics电路图.pdf

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1、 DMR12 Schematics Klark Teknik Building Walter Nash Road Kidderminster Worcestershire DY11 7HJ Tel: +44 (0) 1562 741515 Fax: +44 (0) 1562 745371 Email: Website: DMR12 Schematics Telex Communications (UK) Limited In line with the companys policy of continual improvement, specifications and function m

2、aybe subject to change without notice. This Operator Manual was correct at the time of writing. E&OE. RadioFans.CN 收音机爱 好者资料库 Date: November 20, 1991Sheet 1of 1 SizeDocument NumberREV DCD10855 Title DMR12 INPUT MODULE DDA LTD V- V+ EQ IN R48 1K5 C36 33 R50 47K C38 100/16 R52 10K R57 10K R58 10K S6 S

3、UN2 C39 100/16 D1 LED R R164 75 R43 10K C33 15N R44 10K R47 1K5 C37 470N C35 470NR49 47K R51 75 10 9 8 IC3C TL074 12 13 14 IC3D TL074 POT5 10KA 1 2 3 POT17A 100K- 4 5 6 POT17B 100K- C30 33 R34 1K5 R35 1K5 C29 3N3R36 47K R37 47K R40 75 R38 10K R39 10K C31 2N2 3 2 1 4 1 1 IC3A TL074 5 6 7 IC3B TL074 P

4、OT2 10KA 4 5 6 POT16B 100K- 1 2 3 POT16A 100K- HIGH PASS R31 100K C28 33N R32 47K R185 75 C82 100/16 R174 10K 10 9 8 IC2C TL074 S5 SUJ2 V+ V- PHASE REVERSE R11 10K C12 33 R10 75 R53 75 C26 100/16 R30 10K R33 10K C27 33N 5 6 7 IC2B TL074 S2 SUJ2 V+ V-R7 15K C13 100/16 R141 10K R12 10K D29 D28 +48V V+

5、 V- RP1 501 R173 470 R5 24K TR2 2SB737 R179 7K5 R134 75 C4 220/25 R182 4K7 C5 680 C7 680 C3 68/16 IN+ -20dB +48V MIC C81 2.2/63 R183 470 R170 1K5 R171 330 R3 24K C1 33/63 S3 SUJ2 S31 SUJ2R2 6K8 1% R1 6K8 1% IN- C2 33/63 R4 24K R172 1K5 1 2 3 POT1 10K- R180 7K5 R181 4K7 TR1 2SB737C11 68/16 C6 680 R6

6、15K V+ V- MIC/LINE V+ V- 5 6 7 IC1B TL072 C8 33 C9 33 R8 75 C10 100/16 R9 10K C25 100/16 R28 10K R54 75 3 2 1 8 4 IC1A TL072 S4 SUJ2 D30 D31 C24 100/16 V+ R90 75 C59 33 R87 4K7 R88 4K7 C60 100/16 R41 3K3 R42 3K3 C32 4N7 3 2 1 4 1 1 IC5A TL074 C71 100/16 PAN IN FROM DIRECT LEDTO INPUT LED R103 10K R4

7、5 3K3 C34 33N R46 3K3 POT3 10KA POT4 10KA S7 SUJ2 D15 LED G S19 SUJ4 D2 LED G GRP 1 GRP 2 FROM INPUT LED R110 10K S13 SUJ2 D8 LED R GRP 3 GRP 4 GRP 5 GRP 6 R112 10K R111 10K S14 SUJ2 S15 SUJ2 D9 LED R D10 LED R D11 LED R R105 10K R104 10K S8 SUJ2 S9 SUJ2 S10 SUJ2 D3 LED R D4 LED R D5 LED R V- V+ V-

8、R86 330 R91 330 R89 10K R94 10K C62 100/16 R95 75 R92 4K7C61 33 R93 4K7 C73 100/16 10 9 8 IC5C TL074 R220 330 R219 7K5 R191/B 10 VCCVCC PEAK V- TR5 BC212 R147 100K 1 2 3 POT18A 4K7A TR6 BC212 D19 LED R D35 16VZENER R101 2K2 C77 220N SUBMIN VCCVCC VCC R27 10K R150 100K C74 22/25 R142 12K R143 1K8 TR4

9、 BC182 R144 100K R145 10K R146 100K C75 470N SUBMIN 5 6 7 IC9B TL072 RP3 502 R29 10K R169 510 R168 510 C80 33 R167 10K R208 10K R209 22K POT14 10KA V+LINE1/LINE2 C17 33 C16 33 R16 7K5 R56 75 C18 100/16 R19 10K R184 10K D32 LED G IN - IN + LINE1 R18 10K R17 10K C15 100/16 C14 100/16 R15 15K R14 15K R

10、13 7K5 3 2 1 4 1 1IC2A TL074 CON2/9 CON2/10 IN - IN + LINE2 C19 100/16 C20 100/16 R22 15K R21 15K R24 10K R25 10K R20 7K5 5 6 7 IC2B TL074 CON2/7 CON2/8 V- C22 33 C21 33 R23 7K5 R55 75 C23 100/16 R26 10K S1 SUJ4 METER+ METER- VCC PEAK LED PEAK LED 3 2 1 8 4 IC9A TL072 V- R210 3K6 R212 100K R214 100K

11、 R215 2K2 R213 100K C108 220N SUBMIN R211 2K2 D2 R151 75 R149 100K C76 22/25 3 2 6 7 4 IC10 TL071 D34 1 2 4 3 S33 PROGLINK C104 2N2 SIGNAL PRESENT R152 100K4 5 6 POT18B 4K7A TR9 BC212 D20 LED G C105 100/16 R102 2K2 V+ V- R154 330 R97 4K7 R100 75 C64 100/16 R99 10K C63 33 R96 330 R98 4K7 C72 100/16 1

12、2 13 14 IC5D TL074 R221 330 R107 10K R106 10K S11 SUJ2 S12 SUJ2 D6 LED R D7 LED R GRP 7 GRP 8 GRP 9 GRP 10 R114 10K R113 10K S16 SUJ2 S17 SUJ2 S18 SUJ2 D12 LED R D13 LED R GRP 11 GRP 12 L MIX R MIX TO C/SRC2 R178 10K R177 10K R116 10K R109 10K R115 10K S20 SUJ4 D14 LED G TO GROUP2 LED R108 10K Sub-B

13、oard INPUT FROM PAN LED D27 LED G S32 SUJ4 R224 10K R225 10KC107 33 R226 10K 3 2 6 7 4 IC13 TL071 C106 100/16 V+ V- 3 2 1 8 4 IC6A NE5532 C40 33 R78 75 C55 100/16 PRE/OFF/POSTPRE/OFF/POST S24 C+K R223 10K R60 3K6 RP2 501 R187 47 R190 220K C41 220N R59 220K R188 4K7 1 2 3 POT6 10KALPS V+ 14 AI 4 AO 6

14、 AC 2 BI 11 BO 9 BC 13 V- 7 0V 1 0V 3 0V 5 0V 12 0V 10 0V 8 IC7 SSM2402/1 R186 100K C50 33 R133 7K5 R71 75 C68 33 5 6 7 IC5B TL074 V- VCC C51 100/16 R228 10K OUT+ OUT- IN+ IN- INSERT SENDRETURN C54 100/16 R73 10K R74 75R70 10K R69 10K C49 100/16 C48 100/16 R66 7K5 CON2/6 CON2/5 CON2/4 CON2/3 R68 7K5

15、 R67 7K5 3 2 1 8 4 IC4A NE5532 R79 10K C53 100/16 R76 10K C52 33 R72 75 R175 10K R75 10K R77 10K C83 33 +18V EARTH REF. +48V +48V R155 10 R216 10 R192 10R193 10R194 10 R191/A 10 S26 SW SPST MUTE OUT MUTE VDDVDD V+ IC1 V+ IC2 V+ IC3 V+ IC4 V+ IC9 R138 100K C70 47N VDD VDD VDD R135 100K R189 2K2 D 5 Q

16、 1 CLK 3 Q 2 R 4 S 6 IC8A 4013 D18 1 2 4 3 S29 PROGLINK R227 100K C69 100/16 R136 330K PRE/OFF/POST PRE/OFF/POST VDD S21 C+K S22 C+K AUX 1 AUX 2 AUX 3 R119 10K R117 10K R118 10K POT7 10KB POT8 10KB POT9 10KB V+ V- 5 6 7 IC6B NE5532 R125 220K C66 220N R122 220K R123 4K7 R124 10K R126 75 C65 33 POT13

17、10KB AUX 7 AUX 8 C67 100/16 R130 2K2 1 2 3 POT15A 4K7A 4 5 6 POT15B 4K7A R128 39K R129 39K OUT+ OUT- DIRECT R127 2K2 C56 33 R80 75 C58 100/16 R81 10K R82 75 R83 10K R176 10K CON2/2 CON2/1 DIRECT VCC TO GROUP1 LED 5 6 7 IC4B NE5532 R132 10K C57 100/16 R84 10K R85 10K C84 33 D17 LED G S25 SUJ4 AUX 4 A

18、UX 5 AUX 6 R121 10K R131 10K R120 10K POT10 10KB POT11 10KB POT12 10KB S23 C+K D24 LED R PRE/OFF/POST V- CUT FROM SOLO LED TR10 BC212 R159 100K R160 100K TR11 BC182 D21 VCC TO MIX LED R158 100K R157 100K TR3 BC182 R162 10K TR12 BC182 R161 150 D22 D23 MUTE IN TO SOLO LED V+ IC5 V- IC3 V- IC4 V- IC5 V

19、+ IC6 V- IC6 R137 10K C89 22/25 C101 22/25 C94 22/25 C102 22/25 TR13 BC182 R165 75 VDD VCC R195 10R206 10 R207 10R196 10R197 10R198 10R199 10 C100 2.2/63 C97 22/25 C85 22/25 C86 22/25 C87 22/25 C88 22/25 C98 22/25 C90 22/25 C91 22/25 C92 22/25 C93 22/25 -18V 0V R201 10 R156 10 VI G N D VO REG1 LM78L

20、05 C78 220/25 C79 220/25 C95 2.2/63 R203 R OPT R204 R OPT R202 10 C96 2.2/63 VSSVSS R200 10R217 10 C/SRC1 V- IC1 V- IC2 V- IC9 V-V-V- C/SRC2 FROM CUT LED SOLO TO C/SRC1 R140 10K R139 47K S27 SUN2 1 2 4 3 S28 PROGLINK C103 2N2 SOLO ENABLE SOLO AUDIO RadioFans.CN 收音机爱 好者资料库 Date: November 20, 1991Shee

21、t 1of 1 SizeDocument NumberREV DCD10865 Title DMR12 OUTPUT MODULE DDA LTD V- V+ EQ IN C37 470N R48 1K5 C36 33 C35 470NR50 47K C38 100/16 R52 10K R57 10K 12 13 14 IC3D TL074 C39 100/16 R58 10K R164 75 S6 2 POLE SUN D1 RED R43 10K C31 2N2 C33 15N R44 10K R47 1K5 R49 47K R51 75 10 9 8 IC3C TL074 POT5 1

22、0KA 1 2 3 POT17A 100K- 4 5 6 POT17B 100K- R34 1K5 R35 1K5 C29 3N3R36 47K R37 47K R40 75 R38 10K R39 10K 3 2 1 4 1 1 IC3A TL074 5 6 7 IC3B TL074 POT2 10KA 1 2 3 POT16A 100K- 4 5 6 POT16B 100K- C30 33 HIGH PASS R31 100K C28 33N R32 47K R185 75 C82 100/16 R174 10K 10 9 8 IC2C TL074 S5 2 POLE SUJ V+ V-

23、PHASE REVERSE R12 10K R11 10K C12 33 R10 75 R53 75 C26 100/16 R30 10K R33 10K C27 33N 5 6 7 IC2B TL074 S2 2 POLE SUJ C13 100/16 OUT+ OUT- SEND INSERT VCC C103 33 R218 75 C104 100/16 R222 75 R134 10K CON2/14 CON2/13 5 6 SIL4C 10KSIL 1 2 SIL4A 10KSIL 7 8 SIL4D 10KSIL R173 1K2 POT1 10KA C10 100/16 R181

24、 10K C11 33 C5 33 5 6 7 IC11B TL072 3 4 SIL2B 10KSIL 3 4 SIL4B 10KSIL V+ V- BUS IN- GROUPS 1-12 BUS IN1 BUS IN2 BUS IN3 BUS IN4 BUS IN5 BUS IN6 BUS IN7 BUS IN8 BUS IN9 BUS IN10 BUS IN11 BUS IN12 INSERT RP1 50K 3 2 1 8 4 IC1A NE5532 R170 75 R171 100K R7 75 R179 10K R172 3K6 1 2 3 4 5 6 7 8 9 10 11 12

25、 C9 100 R180 75 IN+ IN- RETURN C3 33 R3 10K R4 10K C2 100/16 C1 100/16 3 2 1 8 4 IC11A TL072 CON2/16 CON2/15 C4 33 5 6 SIL3C 10KSIL 7 8 SIL3D 10KSIL 3 4 SIL3B 10KSIL 1 2 SIL3A 10KSIL V+ V- V+ V- RP4 502 C7 100/16 C8 100/16 R9 75 R8 75 C6 33 3 2 1 8 4 IC12A NE5532 5 6 7 IC12B NE5532 78 SIL1D 4K7SIL 1

26、 2 SIL1A 4K7SIL 3 4 SIL1B 4K7SIL 7 8 SIL2D 10KSIL 5 6 SIL2C 10KSIL 1 2 SIL2A 10KSIL 5 6 SIL1C 4K7SIL C25 100/16 R28 10K R54 75 BUS 1- BUS 1+ BUS 13- BUS 13+ V- BUS SELECT BUS OUT 5 6 7 IC1B NE5532 CON2/19 CON2/20 CON2/17 CON2/18 D28 LED R S4 6 POLE SUJ C24 100/16 V+ R90 75 C59 33 R87 4K7 R88 4K7 C60

27、 100/16 R41 3K3 R42 3K3 C32 4N7 3 2 1 4 1 1 IC5A TL074 C71 100/16 PAN IN FROM DIRECT LEDTO INPUT LED R103 10K R45 3K3 C34 33N R46 3K3 POT3 10KA POT4 10KA D15 LED G S19 SUJ4 D2 LED R S7 2 POLE SUJ GRP 1 GRP 2 FROM INPUT LED R110 10K S13 2 POLE SUJ D8 RED GRP 3 GRP 4 GRP 5 GRP 6 R112 10K R111 10K D10

28、LED R D11 LED R S15 2 POLE SUJ S14 2 POLE SUJ D9 RED R105 10K R104 10K R89 10K R94 10K D3 LED R D4 LED R D5 LED R S8 2 POLE SUJ S9 2 POLE SUJ S10 2 POLE SUJ V- V+ V- R86 330 R91 330 C62 100/16 R95 75 R92 4K7C61 33 R93 4K7 C73 100/16 10 9 8 IC5C TL074 R220 330 R219 7K5 R191/B 10 R101 2K2 VCCVCC PEAK

29、V- R146 100K TR5 BC212 R147 100K 1 2 3 POT18A 4K7A TR6 BC212 D35 16V C111 220N D19 LED R VCCVCC VCC R27 10K R150 100K C74 22/25 R142 12K R143 1K8 TR4 BC182 R144 100K R145 10K C75 470N SUBMIN 5 6 7 IC9B TL072 RP3 502 R29 10K R169 510 R168 510 C80 33 R167 10K R208 10K R209 22K POT14 10KA V+LINE1/LINE2

30、 C17 33 C16 33 R16 7K5 R56 75 C18 100/16 R19 10K R184 10K D32 LED G IN - IN + LINE1 R18 10K R17 10K C15 100/16 C14 100/16 R15 15K R14 15K R13 7K5 3 2 1 4 1 1IC2A TL074 CON2/9 CON2/10 IN - IN + LINE2 C19 100/16 C20 100/16 R22 15K R21 15K R24 10K R25 10K R20 7K5 5 6 7 IC2B TL074 CON2/7 CON2/8 V- C22 3

31、3 C21 33 R23 7K5 R55 75 C23 100/16 R26 10K S1 4 POLE SUJ METER+ METER- VCC PEAK LED PEAK LED 3 2 1 8 4 IC9A TL072 V- R210 3K6 R211 2K2R212 100K R214 100K R215 2K2 R213 100K C108 220N SUBMIN D2 R151 75 R149 100K C76 22/25 3 2 6 7 4 IC10 TL071 D34 1 2 4 3 S33 PROGLINK C110 2N2 SIGNAL PRESENT R152 100K

32、4 5 6 POT18B 4K7A TR9 BC212 D20LED G C105 100/16 V+ V- R154 330 R97 4K7 R100 75 C64 100/16 C63 33 R96 330 R98 4K7 C72 100/16 12 13 14 IC5D TL074 R221 330 R102 2K2 R107 10K R106 10K R99 10K D6 LED R D7 LED R S11 2 POLE SUJ S12 2 POLE SUJ GRP 7 GRP 8 GRP 9 GRP 10 R114 10K R113 10K D12 LED R D13 LED R

33、S18 2 POLE SUJ S17 2 POLE SUJ S16 2 POLE SUJ GRP 11 GRP 12 L MIX R MIX TO C/SRC2 R178 10K R177 10K R116 10K R109 10K R115 10K D14 LED G S20 4 POLE SUJ TO GROUP2 LED R108 10K Sub-Board INPUT FROM PAN LED S32 SUJ4 D27 LED G S24 C+K R224 10K R225 10KC107 33 R226 10K 3 2 6 7 4 IC13 TL071 C106 100/16 V+

34、V- PRE/OFF/POST 3 2 1 8 4 IC6A NE5532 C40 33 R78 75 C55 100/16R223 10K R60 3K6 RP2 501 R187 47 R190 220K C41 220N R59 220K R188 4K7 1 2 3 POT6 10KALPS R186 100K C50 33 R133 7K5 R71 75 C68 33 5 6 7 IC5B TL074 VCC V- V+ 14 AI 4 AO 6 AC 2 BI 11 BO 9 BC 13 V- 7 0V 1 0V 3 0V 5 0V 12 0V 10 0V 8 IC7 SSM240

35、2/1 C51 100/16 R228 10K OUT+ OUT- IN+ IN- INSERT SENDRETURN C54 100/16 R73 10K R74 75R70 10K R69 10K C49 100/16 C48 100/16 R66 7K5 CON2/6 CON2/5 CON2/4 CON2/3 R68 7K5 R67 7K5 3 2 1 8 4 IC4A NE5532 R79 10K C53 100/16 R76 10K C52 33 R72 75 R175 10K R75 10K R77 10K C83 33 +18V EARTH REF. +48V +48V R155

36、 10 R216 10 R194 10 R193 10 R192 10 R191/A 10 S26 SW SPST MUTE OUT MUTE VDDVDD V+ IC1 V+ IC2 V+ IC3 V+ IC4 V+ IC9 R138 100K C70 47N VDD VDD R135 100K R189 2K2 D 5 Q 1 CLK 3 Q 2 R 4 S 6 IC8A 4013 D18 1 2 4 3 S29 PROGLINK C69 100/16 R227 100K R136 330K PRE/OFF/POST PRE/OFF/POST VDDVDD R158 100K AUX 1

37、AUX 2 AUX 3 R119 10K R117 10K R118 10K POT7 10KB POT8 10KB POT9 10KB S21 C+K S22 C+K V+ V- 5 6 7 IC6B NE5532 R125 220K C66 220N R122 220K R123 4K7 R124 10K R126 75 C65 33 POT13 10KB AUX 7 AUX 8 C67 100/16 R130 2K2 1 2 3 POT15A 4K7A 4 5 6 POT15B 4K7A R128 39K R129 39K OUT+ OUT- DIRECT 5 6 7 IC4B NE55

38、32 R127 2K2 C56 33 R80 75 C58 100/16 R81 10K R82 75 R83 10K R176 10K CON2/1 CON2/2 DIRECT VCC TO GROUP1 LED R132 10K C57 100/16 R84 10K R85 10K C84 33 D17 LED G S25 4 POLE SUJ AUX 4 AUX 5 AUX 6 R121 10K R120 10K POT10 10KB POT11 10KB POT12 10KB S23 C+K D24 LED R R131 10K PRE/OFF/POST V- CUT FROM SOL

39、O LED TR10 BC212 R159 100K R160 100K TR11 BC182 D21 VCC TO MIX LEDTO SOLO LED R157 100K TR3 BC182 R162 10K TR12 BC182 R161 150 D22 D23 MUTE INV+ IC5 V- IC3 V- IC4 V- IC5 V+ IC6 V- IC6 R137 10K C89 22/25 C101 22/25 C94 22/25 C102 22/25 TR13 BC182 R165 75 VDD VCC R195 10R206 10 R207 10R196 10R197 10R1

40、98 10R199 10 C100 2.2/63 C97 22/25 C85 22/25 C86 22/25 C87 22/25 C88 22/25 C98 22/25 C90 22/25 C91 22/25 C92 22/25 C93 22/25 -18V 0V R201 10 R156 10 VI G N D VO REG1 LM78L05 C78 220/25 C79 220/25 C95 2.2/63 R203 R OPT R204 R OPT R202 10 C96 2.2/63 VSSVSS R200 10R217 10 V- C/SRC1 V- IC1 V- IC2 V- IC9

41、 V-V- C/SRC2 FROM CUT LED SOLO TO C/SRC1 1 2 4 3 S28 PROGLINK R139 47K R140 10K C109 2N2 S27 2 POLE SUN SOLO ENABLE SOLO AUDIO RadioFans.CN 收音机爱 好者资料库 Date: August 4, 1994Sheet 1of 1 SizeDocument NumberREV DCD1087-4C Title DMR MONITOR MODULE TW3 2EB ENGLAND HOUNSLOW MIDDX WHITTON RD UNIT 1, INWOOD B

42、USINESS PK DDA LTD CON C2 CON C1 MAIN L- MAIN L+ R64 10K 3 2 1 8 4 IC5A NE5532 R61 10K C37 33P C36 33P R65 10K R63 75R R66 75R C38 100U 16V R60 10K TO LED13R62 10K 3 2 1 8 4 IC16A TL072 C107 10P R219 75R C35 100U 16V R59 220K R207 22K R208 100K CONTROL ROOM LEVEL ALT SPK VCC VCC CON F6 CON F5 CON F2

43、 PEAKLED FROM LED11 R189 2K2 3 2 1 8 4 IC13A TL072 5 6 7 IC13B TL072 R187 100K V- LED12 RED S6 4PSUN 1 2 3 VR3A 10KX2 +LOG CUT L METER L CON F7 CON F8 FROM LED13 TO LED15 TO LED17 C89 33P R190 3K6 3 2 1 8 4 IC14A TL072 R188 100K LED16 RED LED14 RED PR1 5KH S10 2PSUN S8 2PSUN R186 33K MONO VCC FROM L

44、ED15 R51 47K R185 10K R53 4K7 C32 100U 16V V+ 14 AI 4 AO 6 AC 2 BI 11 BO 9 BC 13 V- 7 0V 1 0V 3 0V 5 0V 12 0V 10 0V 8 IC9 SSM2402 SIP SWITCHING VCC C31 33P R114 10K R48 7K5 R47 75R V+ 14 AI 4 AO 6 AC 2 BI 11 BO 9 BC 13 V- 7 0V 1 0V 3 0V 5 0V 12 0V 10 0V 8 IC11 SSM2402 3 2 1 8 4 IC7A NE5532 V- V+ 3 2

45、 1 8 4 IC12A TL072 C67 33P R110 10K R113 10K R111 10K R112 75R C68 100U 16V AFLL BUSCOM 5 6 7 IC12B TL072 CON B2 CON B23 C66 33P R108 10K R109 100K R107 75R V+ V+ V-V-V- R117 100K R118 100K TR1 BC182 TR2 BC212 R119 3K3 SOLO DC CONB4 C69 2U2 63V R116 100K SOLO V+ V+ V- R120 100K R121 100K R122 100K R

46、123 10K TR3 BC212 TR4 BC212 LED18 YEL VCC VDD C33 33P R45 OPT R43 10K R44 10K R115 10K R50 7K5 R49 75R V+ 14 AI 4 AO 6 AC 2 BI 11 BO 9 BC 13 V- 7 0V 1 0V 3 0V 5 0V 12 0V 10 0V 8 IC10 SSM2402 5 6 7 IC7B NE5532 VDD FROM LED14 R52 47K R54 4K7 C34 100U 16V CUT R METER R CON F3 CON F4 TO LED 16 R191 10K

47、C90 33P R196 3K6 5 6 7 IC14B TL072 V- R193 100K LED15 RED PR2 5KH S9 2PSUN R192 33K CON F1 PEAKLED R194 100K R195 2K2 4 5 6 VR3B 10KX2 +LOG R68 10K R70 10K 5 6 7 IC16B TL072 C108 10P R220 75R C40 100U 16V R67 220K R209 22K R210 100K MAIN R- MAIN R+ R72 10K 5 6 7 IC5B NE5532 CON C4 CON C3 R69 10K C42

48、 33P C41 33P R73 10K R71 75R R74 75R C43 100U 16V CON C6 CON C5 ALT1 L+ ALT1 L- R80 10K 3 2 1 8 4 IC4A NE5532 R77 10K C47 33P C46 33P C51 33P R85 10K R81 10K R79 75R R82 75R C48 100U 16V R76 10K R78 10K R86 10K 3 2 1 8 4 IC15A TL072 C109 10P C110 10P R221 75R C45 100U 16V R75 220K R211 22K R212 100K

49、 R214 100K STUDIO LEVEL R148 10K R56 10K R58 10K R55 4K7 R57 4K7 BUS1 CONB17 1 2 3 VR2A 10KX2 +LOG 4 5 6 VR2B 10KX2 +LOG V+ STUDIO ON FROM LED12 TO LED14 R184 100K LED13 RED S7 4PSUN VDD DIM FROM LED16TO LED19 R46 OPT LED17 GRN S11 2PSUN TAPE 1 3 2 1 8 4 IC1A TL072 FROM LED7 R6 7K5 C3 33P R7 10K C4 33P R13 7K5 C5 100U 16V LED8 RED S5A TA