Rane MM 8z Mixer Schematics 电路图.pdf

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1、RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 H:MM8Z102870-1.SCH10-May-1999 CHECKED BY:DRAWN BY: SHEET: 10802 47th Avenue West Mukilteo WA 98275-5098 15 LEFT INPUTS MM 8z 102870 of ACTION: 1 2 J2A PH/LINE 1 R32 47.5k L5 3T C9 150PF GND GND R41 90.9k R49 7.5k R57 162 C22 .036 + C30 100/10 GND C64 2

2、2/25 C104 .01 C118 47pF GND PHONO LINE 1 2 3 S6A 3 4 J2B GND R65 2k R91 20k GND C65 22/25 R157 20k GND R94 20k GND 3 2 1 84 Z1A 4570 1 2 J3A R33 47.5k L6 3T C10 150PF GND GND R42 90.9k R50 7.5k R58 162 C23 .036 + C31 100/10 GND C71 22/25 C109 .01 C121 47pF GND PHONO LINE 1 2 3 S7A 3 4 J3B GND R66 2k

3、 R95 20k C72 22/25 R183 20k R98 20k GND 3 2 1 84 Z3A 4570 1 2 J4A R34 47.5k L7 3T C11 150PF GND GND R43 90.9k R51 7.5k R59 162 C24 .036 + C32 100/10 GND C74 22/25 C110 .01 C122 47pF GND PHONO LINE 1 2 3 S8A 3 4 J4B R67 2k R99 20k C75 22/25 R184 20k R102 20k GND 3 2 1 84 Z5A 4570 1 2 J5A R35 47.5k L8

4、 3T C12 150PF GND GND R44 90.9k R52 7.5k R60 162 C25 .036 + C33 100/10 GND C76 22/25 C111 .01 C123 47pF GND PHONO LINE 1 2 3 S9A 3 4 J5B R68 2k R103 20k C77 22/25 R185 20k R106 20k GND 3 2 1 84 Z7A 4570 GND GND GND GND GND GND GND GND +15V +15V +15V +15V -15V -15V -15V -15V GND GND GND GND LINE 2 PH

5、/LINE 3 LINE 4 PH/LINE 5 LINE 6 PH/LINE 7 LINE 8 3 2 1 84 Z4A TL072 3 2 1 84 Z6A TL072 3 2 1 84 Z8A TL072 3 2 1 84 Z18A TL072 +15V -15V +15V -15V +15V -15V +15V -15V J20-1 J20-3 J20-6 J20-8 J20-11 J20-13 J20-16 J20-18 REAR PCB SELECT SWITCH 5 6 7 Z22B TL072 2 13 R9A 20KB 2 13 R10A 20KB C105 .01 2 13

6、 R11A 20KB R223 30.1k R242 1.33k R262 4.02k R158 4.02k C140 .0033 R243 1.33k R263 4.02k R159 4.02k C141 .0033 GND 5 6 7 Z13B TL072 2 13 R12A 20KB 2 13 R13A 20KB C106 .01 2 13 R14A 20KB R224 30.1k R244 1.33k R264 4.02k R160 4.02k C142 .0033 R245 1.33k R265 4.02k R161 4.02k C143 .0033 GND 5 6 7 Z14B T

7、L072 2 13 R15A 20KB 2 13 R16A 20KB C107 .01 2 13 R17A 20KB R225 30.1k R246 1.33k R266 4.02k R162 4.02k C144 .0033 R247 1.33k R267 4.02k R163 4.02k C145 .0033 GND 5 6 7 Z15B TL072 2 13 R18A 20KB 2 13 R19A 20KB 2 13 R20A 20KB R226 30.1k R248 1.33k R268 4.02k R164 4.02k C146 .0033 R249 1.33k R269 4.02k

8、 R165 4.02k C147 .0033 GND C13 150pF C14 150pF C15 150pF C16 150pF C176 .033 C177 .033 C178 .033 C179 .033 GND 5 46 R2B 20KA 5 6 7 Z9B TL072 C66 22/25 R92 20k GND R207 1k GND 5 46 R3B 20KA CW 5 6 7 Z10B TL072 C73 22/25 R96 20k GND R208 1k GND 5 46 R4B 20KA CW 5 6 7 Z11B TL072 C156 22/25 R100 20k GND

9、 R209 1k GND 5 46 R5B 20KA CW 5 6 7 Z12B TL072 C78 22/25 R104 20k GND R210 1k CH 1 HPCUE1L HPCUE2L HPCUE3L HPCUE4L MTCUE1L MTCUE2L MTCUE3L MTCUE4L CW R2C 20KA R3C 20KA R4C 20KA R5C 20KA R305 20k R213 9.09k GND R86 20k R105 9.09k R87 20k R107 9.09k R108 9.09k R89 20k GND GND GND +10dB +10dB +10dB +10

10、dB TREBLE BASS MID CW R125 7.5k R126 7.5k R131 7.5k R146 7.5k C108 .01 1 2 3 S17A 2P2P GND 1 2 3 S18A 2P2T GND J25-1 J25-7 J28-1 J28-7 CW CW LEVEL GND J14-11 J7-11 TREBLE BASS MID CW CW CW TREBLE BASS MID CW CW CW TREBLE BASS MID CW CW CW CH 2 LEVEL GND J14-16 J7-16 J7-15 J14-15 CH 3 LEVEL GND J7-20

11、 J14-20 GND J14-24 J7-24 FRONT PCB J14-19 J7-19 SHEET 3 J3-1 J3-3 J3-6 J3-8 J3-11 J3-13 J3-16 J3-18 J4-1&2 J4-7&8 J6-1&2 J6-7&8 LEFT CHANNEL SHEET 3 LEFT CHANNEL J30 R302 100 C80 22/25 R186 20k GND GND 3 2 1 84 Z17A TL072 R187 20k GND C86 22/25 R303 301 R190 20k GND J12B C157 22/25 +15V -15V TAPE PR

12、OGRAM LEFT LEFT PROGRAM J22-3 2 13 R75A 10KA GND 3 2 1 84 Z20A TL072 R174 20k R175 20k R176 9.09k GND GND C70 22/25 R301 301 R177 20k GND GND 5 6 7 Z19B 4574 3 2 1 411 Z19A 2059 R270 20k R178 20k R179 20k R180 20k GND GND J10 R271 20k GND R181 20k 2 13 R79A 10KA J11 AUX C165 4.7/25 AUX +15V +15V -15

13、V -15V AUX PCB GND MICSUM C52 22/25 R79C 10KA LEFTLEVEL 1 2 3 S12A 2T2P J5-3 J13-1 J19-1 J8-1 J21-1 REAR PCB J21-2 J19-5 OUT GND 7 8 OUT LOOP J8-2 J24-5 J24-4 J24-6 CT CT AC AC 1 2 3 4 5 6 J1 6P MOD J29-5 SHEET 3 J29-6 J29-4 J19-7 J13-7J13-5 102870-2.SCH102870-4.SCH 102870-5.SCH TO SHEET 5 TO SHEET

14、5 TO SHEET 5 TO SHEET 5 TO SHEET 5 TO SHEET 5 TO SHEET 5 TO SHEET 5 ASSIGN PRE ASSIGN POWER SUPPLY TO SHEET 2 AUX LEFT IN R75C 10KA 7 8 OUT CH 1 A CH 2 A CH 3 B CH 4 B POST PRE POST CH 4 LEVEL CH 1 CH 2 CH 3 CH 4 B MIX B MIX A MIX A MIX NOTES:UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS 1/4W 1% METAL

15、 FILM 2. ALL SWITCHES SHOWN IN THEIR OUT OR OFF POSITION A MIX CH 1 B MIX CH 4 PROGRAM LOOP PRE POST MIC LEFT MASTER POWER LEVEL AUX IN CW CW SKH RJ NO CHG TO THIS SHEET RWJ 10MAY99 RadioFans.CN 收音机爱 好者资料库 H:MM8Z102870-2.SCH10-May-1999 CHECKED BY:DRAWN BY: SHEET: 10802 47th Avenue West Mukilteo WA 9

16、8275-5098 25 RIGHT INPUTS MM 8z 102870 of ACTION: 5 J2C PH/LINE 1 R71 47.5k L1 3T C54 150PF GND GND R37 90.9k R45 7.5k R53 162 C18 .036 + C26 100/10 GND C34 22/25 C96 .01 C112 47pF GND PHONO LINE 4 5 6 S6B 6 J2D R61 2k R69 20k GND C35 22/25 R115 20k GND R72 20k GND 5 6 7 Z1B 4570 5 J3C R28 47.5k L2

17、3T C2 150PF GND GND R38 90.9k R46 7.5k R54 162 C19 .036 + C27 100/10 GND C41 22/25 C101 .01 C115 47pF GND PHONO LINE 4 5 6 S7B 6 J3D R62 2k R73 20k C42 22/25 R141 20k R76 20k GND 5 6 7 Z3B 4570 5 J4C R29 47.5k L3 3T C3 150PF GND GND R39 90.9k R47 7.5k R55 162 C20 .036 + C28 100/10 GND C44 22/25 C102

18、 .01 C116 47pF GND PHONO LINE 4 5 6 S8B 6 J4D R63 2k R77 20k C45 22/25 R142 20k R80 20k GND 5 6 7 Z5B 4570 5 J5C R30 47.5k L4 3T C4 150PF GND GND R40 90.9k R48 7.5k R56 162 C21 .036 + C29 100/10 GND C46 22/25 C103 .01 C117 47pF GND PHONO LINE 4 5 6 S9B 6 J5D R64 2k R81 20k C47 22/25 R143 20k R84 20k

19、 GND 5 6 7 Z7B 4570 GND GND GND GND GND GND LINE 2 PH/LINE 3 LINE 4 PH/LINE 5 LINE 6 PH/LINE 7 LINE 8 5 6 7 Z4B TL072 5 6 7 Z6B TL072 5 6 7 Z8B TL072 5 6 7 Z18B TL072 J20-2 J20-4 J20-7 J20-9 J20-12 J20-14 J20-17 J20-19 REAR PCB SELECT SWITCH SHEET 3 J3-2 J3-4 J3-7 J3-9 J3-12 J3-14 J3-17 J3-19 J4-3&4

20、 J4-9&10 J6-3&4 J6-9&10 RIGHT CHANNEL 8 3 2 1 4 Z22A TL072 5 46 R9B 20KB 5 46 R10B 20KB C97 .01 5 46 R11B 20KB R214 30.1k R234 1.33k R252 4.02k R116 4.02k C132 .0033 R235 1.33k R253 4.02k R117 4.02k C133 .0033 GND 8 3 2 1 4 Z13A TL072 5 46 R12B 20KB 5 46 R13B 20KB C98 .01 5 46 R14B 20KB R215 30.1k R

21、236 1.33k R254 4.02k R118 4.02k C134 .0033 R237 1.33k R255 4.02k R119 4.02k C135 .0033 GND 8 3 2 1 4 Z14A TL072 5 46 R15B 20KB 5 46 R16B 20KB C99 .01 5 46 R17B 20KB R216 30.1k R238 1.33k R256 4.02k R120 4.02k C136 .0033 R239 1.33k R257 4.02k R121 4.02k C137 .0033 GND 8 3 2 1 4 Z15A TL072 5 46 R18B 2

22、0KB 5 46 R19B 20KB C100 .01 5 46 R20B 20KB R217 30.1k R240 1.33k R258 4.02k R122 4.02k C138 .0033 R241 1.33k R259 4.02k R123 4.02k C139 .0033 GND GND 2 13 R5A 20KA CW 3 2 1 84 Z12A TL072 C48 22/25 R82 20k GND R206 1k C5 150pF C6 150pF C7 150pF C8 150pF MTCUE2R HPCUE4R MTCUE4R C172 .033 C173 .033 C17

23、4 .033 C175 .033 +15V +15V +15V +15V +15V -15V -15V -15V -15V -15V R23 20k R101 9.09k GND GND 2 13 R4A 20KA CW 3 2 1 84 Z11A TL072 C154 22/25 R78 20k GND R205 1k HPCUE3R MTCUE3R +15V -15V R90 20k R111 9.09k GND GND 2 13 R3A 20KA CW 3 2 1 84 Z10A TL072 C43 22/25 R74 20k GND R204 1k HPCUE2R +15V -15V

24、R93 20k R112 9.09k GND GND 2 13 R2A 20KA CW 3 2 1 84 Z9A TL072 C36 22/25 R70 20k GND R203 1k HPCUE1R MTCUE1R +15V -15V R114 9.09k R97 20k GND +10dB +10dB +10dB +10dB R147 7.5k R150 7.5k R151 7.5k R152 7.5k J25-3 J25-9 J28-3 J28-9 TREBLE BASS MID CW CW CW TREBLE BASS MID CW CW CW TREBLE BASS MID CW C

25、W CW TREBLE BASS MID CW CW CW CH 1 LEVEL J14-13 J7-13 J7-14 J14-14 J14-17 J14-18 J7-18 J7-17 CH 2 LEVEL J14-21 J7-21 J7-22 J14-22 CH 3 LEVEL J14-23 J7-23 CH 4 LEVEL FRONT PCB SHEET 3 RIGHT CHANNEL J31 R297 100 C50 22/25 R144 20k GND GND C161 4.7/25 GND PROGRAM RIGHT 5 6 7 Z17B TL072 R145 20k GND C56

26、 22/25 R298 301 R148 20k GND J12A 4 5 6 S12B 2T2P TAPE RIGHT J22-4 5 46 R75B 10KA GND 5 6 7 Z20B TL072 R132 20k R133 20k R134 9.09k GND GND C40 22/25 R296 301 R135 20k GND 10 9 8 Z19C 4574 12 13 14 Z19D 4574 R260 20k R136 20k R137 20k R138 20k GND GND J8 R261 20k GND GND R139 20k 5 46 R79B 10KA J9 A

27、UX C162 4.7/25 AUX PCB GND MICSUM C53 22/25 AUX AUX +10dB RIGHT RIGHT J21-3 J8-3 J19-3 J13-3 LOOP J19-9 J13-9 REAR PCB OUT IN OUT -15V +15V GND C206 0.1 C207 0.1 AUX PCB -15V +15V -15V +15V GND GNDGND LB1 C200 0.1 C201 0.1 C202 0.1 C203 0.1 C204 0.1 C205 0.1 GND -15V +15V GND GND LB2 GND C79 0.1 C81

28、 0.1 C82 0.1 C83 0.1 REAR PCB -15V -15V +15V TO SHEET 5 TO SHEET 5 TO SHEET 5 TO SHEET 5 TO SHEET 5 TO SHEET 5 TO SHEET 5 TO SHEET 5 J13-13 J13-14J13-2 J13-4 J13-6 J13-8 J13-10 J13-11 J13-12 J19-14 J19-13 J19-2 J19-4 J19-6 J19-8 J19-10 J19-11 J19-12 J33-4 J33-3 J21-4 J20-20 J20-15 J20-10 J20-5 J24-1

29、 J24-2 J24-3 CH1 A CH 2 A CH 3 B CH 4 B CH 1 CH 2 CH 3 CH 4 B MIX B MIX A MIX A MIX OUT LEVEL LEVEL AUX IN CW CW PROGRAM LOOP PRE POST J5-4 PROGRAM RIGHT MASTER FROM SHEET 1 SKHRJ +15V NO CHG TO THIS PART RWJ 10MAY99 H:MM8Z102870-3.SCH10-May-1999 CHECKED BY:DRAWN BY: SHEET: 10802 47th Avenue West Mu

30、kilteo WA 98275-5098 35 HEADPHONE/PWR SUP MM 8z 102870 of ACTION: 15 14 13 Z32D 2164 10 11 12 Z32C 2164 R289 511 R379 511 C230 470pF C231 470pF GND GND R6 60.4k R7 60.4k R8 60.4k R9 60.4k 1110 9 Z33C ADG212 67 8 Z34D ADG212 R398 60.4k 1415 16 Z33B ADG212 32 1 Z34A ADG212 R399 60.4k C235 0.1 J7-13 J7

31、-14 J7-18 J7-17 J7-21 J7-22 J7-23 2 3 9 8 4 1 16 Z32A 2164 R2 60.4k R288 511 C160 470pF GND R107 33.2k GND C49 47pF R380 30.1k +15V -15V GND R4 60.4k -15V +15V V+ 13 V- 4 VL 12 GND 5 Z34E ADG212 2 31 Q23 2907A V+ 13 V- 4 VL 12 GND 5 Z33E ADG212 1415 16 Z34B ADG212 32 1 Z33A ADG212 R397 60.4k GND VL

32、J7-20 J7-24 J7-19 J9-20 J5-4 7 6 5 Z32B 2164 R283 511 C159 470pF GND R85 33.2k GND C79 47pF C1 4.7/25 R3 60.4k R5 60.4k 1110 9 Z34C ADG212 R396 60.4k 67 8 Z33D ADG212 GND IO 31 2 Q21 78LO5 2 31 Q22 2907A GND +15V GND VL J7-11 J7-16 J7-15 J5-3 J9-19 PH/LN1 CH 1 A LINE 2 PH/LN3 LINE 4 PH/LN5 LINE 6 PH

33、/LN7 LINE 8 2 3 41 S2A 2P3T GND 2 3 41 S3A 2P3T GND 2 3 41 S4A 2P3T GND 2 3 41 S5A 2P3T GND J3-1 J3-3 J3-6 J3-8 J3-11 J3-13 J3-16 J3-18 J4-1 J4-2 J4-7 J4-8 J6-1 J6-2 J6-7 J6-8 PH/LN1 LINE 2 PH/LN3 LINE 4 PH/LN5 LINE 6 PH/LN7 LINE 8 6 7 85 S2B 2P3T GND 6 7 85 S3B 2P3T GND 6 7 85 S4B 2P3T GND 6 7 85 S

34、5B 2P3T GND J3-2 J3-4 J3-7 J3-9 J3-12 J3-14 J3-17 J3-19 J4-3 J4-4 J4-9 J4-10 J6-3 J6-4 J6-9 J6-10 SWITCH PCB J20-1 SHEET 1 SHEET 2 J14-16 J14-11 J14-15 J14-19 J14-20 J14-24 J14-13 J14-14 J14-17 J14-18 J14-23 J14-21 J14-22 J25-1 J25-7 J28-1 J28-2 J28-7 J28-8 J25-3 J25-9 J28-3 J28-4 J28-9 J28-10 J32-1

35、9 J22-3 J32-20 J22-4 SHEET 1 5 6 7 Z25B 4580 R348 51.1 R89 100k R350 5.11k R90 51.1k R284 15k R285 15k GND GND C182 22pF 5 46 R24B 10KA GND C60 22/25 C61 22/25 5 46 R1B 10KB GND R286 15k R287 15k CUE MASTER J14 8 3 2 1 4 Z25A 4580 R349 51.1 R111 100k R355 5.11k R112 51.1k R290 15k R291 15k GND GND C

36、183 22pF 2 13 R24A 10KA GND C90 22/25 C91 22/25 2 13 R1A 10KB GND R292 15k R293 15k LEVEL +15V +15V -15V -15VGND HEADPHONE CUE MASTER GND J3-5 J3-10 J3-15 J3-20 J4-5 J4-5 J4-11 J4-12 J6-5 J6-6 J6-11 J6-12 GNDGND SWITCH PCB C228 0.1 C229 0.1 -15V +15V GND C5 0.1 C6 0.1 +15V GND -15V GND -15V +15V PWR

37、 GND + C190 2200/25 + C192 10/16 + C193 10/16 + C194 10/16 + C195 10/16 + C191 2200/25 + C196 2200/35 + C197 2200/35 C198 0.1 C199 0.1 R374 243 R375 243 R376 2.67k R377 2.67k R356 5.11k D25 Y D32 4004 D34 4004 D35 4004 D37 4004 LM317 32 1 1A REGASSY LM337 5 4 6 1B J24-5 J29-5 J24-4 J29-4 J24-6 J29-6

38、 HEADPHONE PCB SHEET 1 J20-3 J20-6 J20-8 J20-11 J20-13 J20-16 J20-18 J20-2 J20-4 J20-7 J20-9 J20-12 J20-14 J20-17 J20-19 SHEET 1 LEFT RIGHT SHEET 2 CH 2 A LEFT CH 3 B CH 4 B RIGHT CH 1 A CH 2 A CH3 B CH 4 B GND -15V +15V GND -15V VLVL +15V J21-1 SHEET 5J32-2 SHEET 5 J32-1 J32-6 J32-5 J9-2 J8-1 J9-6

39、J9-1 J9-5 J7-8 J29-3 J7-12 J29-2 J7-9 J7-10 J8-4 J10-3 J10-4 J29-1 J9-7 J9-8 J9-9 J9-10 J9-11 J9-12 J9-13 J9-14J9-22 J9-21 J9-20 J9-19 J9-18 J9-17 J9-16 J9-15 J7-7J8-2 J21-2J14-7 SHEET 4SHEET 1 J21-3 J8-3 SHEET 2 J33-2J14-6 J23-1J14-5 J14-2J23-4 J14-4J33-1 J14-1J23-3 J14-3J23-2 J7-6 J7-5 J1-4 J10-1

40、J1-3 J1-2 J10-2 J1-1 J7-2 J7-4 J7-1 J7-3 SHEET 4 SHEET 5 J32-3 J9-3J5-1 J22-1 SHEET 5 J32-4 J9-4J5-2 J22-2 CH 1 A CH 4 B CH1 A CH 2 A CH 4 B CH 3 B SUM CUE (L) SHEET 5 SHEET 1 PROGRAM LEFT SHEET 5 SUM SHEET 2 PROGRAM RIGHT CUE (R) MASTER (L) MASTER (R) CWCW CWCW HEADPHONE PAN HEADPHONE PAN HEADPHONE

41、 LEVEL HEADPHONE SKH RJ INTERCONNECTS PASSING THRU HEADPHONE PCB FOR REAR TO FRONT PCB CIRCUITS CH 2 A CH 3 B 8 3 2 1 4 Z1A TL072 5 6 7 Z1B TL072 C238 0.1 C7 4.7/25 D1 4148 R392 1k C11 0.01 GND C12 0.01 GND R391 1k R390 1k D2 4148 C8 4.7/25 C2 4.7/25 C9 4.7/25 C3 4.7/25 C10 4.7/25 C4 4.7/25 R394 1k

42、R393 1k D3 4148 D4 4148 R395 1k C13 0.01 GND C14 0.01 GND +15V C15 0.01 GND C16 0.01 GND C17 0.01 GND C18 0.01 GND 5 6 7 Z30B TL072 8 3 2 1 4 Z30A TL072 J11-1,2 XFADER 2 13 R1A 200KB B A ACTIVE CROSSFADER CIRCUIT CONTOUR CONTROL J11-3,4 J11-5,6 NO CHG TO THIS PART RWJ 10MAY99 H:MM8Z102870-4.SCH10-Ma

43、y-1999 CHECKED BY:DRAWN BY: SHEET: 10802 47th Avenue West Mukilteo WA 98275-5098 45 MIC MM 8z 102870 of ACTION: 1 2 3 + - J16 J17 GND J18 GND C95 22/25 R199 20k GND R373 301 GND MAIN MIC AUX MIC MAIN MIC L9 3T L10 3T C62 330pF L11 3T L12 3T C63 330pF 8 3 2 1 4 Z26A 4570 5 6 7 Z26B 4570 1 2 3 + - 4 S

44、HLD J15 R363 511 R364 100 R365 511 R366 511 GND C185 47pF 2 13 R6A 50KA R369 511 R370 511k C158 4.7/25 GND R372 20k C186 .33 1 2 3 S10A 2P2T GND 3 2 1 84 Z28A TL072 C169 4.7/25 R113 20k GND 5 6 7 Z2B TL072 R344 200k R345 200k R346 511k C188 .33 4 5 6 S10B 2P2T 4 5 6 S11B 2P2T D30 R D31 R R232 10k R2

45、33 10k +15V -15V -15V +15V 8 3 2 1 4 Z27A 4570 5 6 7 Z27B 4570 R359 511 R360 511 R362 511 GND C184 47pF 2 13 R7A 50KA R367 511k R368 511 C94 4.7/25 GND R371 20k C187 .33 1 2 3 S11A 2P2T GND R200 20k R201 20k R202 40.2k GND 5 46 R25B 20KB 5 46 R26B 20KB R250 1.33k R272 5.11k C148 0.1 R251 1.33k R273

46、5.11k C149 .01 C17 150pF R211 1k GND C170 4.7/25 C189 330pF C171 4.7/25 +15V -15V +15V -15V 3 2 1 84 Z2A TL072 R27 20k R8 10k R21 10k R1 100k R22 10k R24 10k -15V +15V + C1 1/35 GND D2 4148 D4 4148 D1 R -15V GND 2 13 R25A 20KB 2 13 R26A 20KB 5 6 7 Z28B TL072 GND ST1 C61 0.1 GND C51 22/25 C55 22/25 R

47、361 100 OL AUX MIC + AUX MIC - TREBLE BASS CW CW CW CW L13 3T L14 3T C58 330pF GND GND GND GND GND MAIN MIC ENGAGE LOOP MIC AUX MIC ENGAGE C208 0.1 C209 0.1 C210 0.1 C218 0.1 C219 0.1 C220 0.1 C221 0.1 C222 0.1 C223 0.1 C224 0.1 C225 0.1 C226 0.1 C227 0.1 +15V -15V C60 0.1 -15V +15V GND GND GNDGND F

48、RONT PCB GND +15V -15V 8 9 14 13 12 11 10 7 16 17 24 23 22 21 18 15 J14-8 J14-12 J14-9 J14-10 J25-5 J25-11 J28-5 J28-11 J32-7 J32-8 J32-9 J32-10 J32-11 J32-12 J32-13 J32-14J32-24 J32-23 J32-22 J32-21 J32-18 J32-17 J32-16 J32-15 J7-2J1-4 J7-4J10-1 REAR PCB J14-2 J14-4 J33-4 J33-1 HEADPHONE PCB J7-7 J

49、14-7 SEE SHEET 3 REAR PCB J7-1J1-3 J7-3J1-2 HEADPHONE PCB J23-3 J23-2 J14-1 J14-3 J26-1J29-1 J26-3 J29-2 J29-3 J26-2 MIC PCB J10-2J7-6 J1-1J7-5 HEADPHONE PCB J14-6 J14-5 J33-2 J23-1 REAR PCB SHEET 3 MAIN MIC LEVEL MAIN MIC ENGAGE SHEET 3 MAIN MIC LEVEL AUX MIC ENGAGE AUX MIC ENGAGE AUX MIC LEVEL SHEET 3 SKH RJ 8 3 2 1 4 Z29A 4570 5 6 7 Z29B 4570 C84 4.7/25V C85 4.7/25V RWJ 10MAY99 ADDED (2) 4.7/25 CAPS, C84& C85 H:MM8Z102870-5.SCH10-May-1999 CHECKED BY:DRAWN BY: SHEET: 10802 47th Avenue West Mukilteo WA 98275-5098 55 OUTPUTS MM 8z 102870 of ACTION: R326 51.1k R327 51.1k R328 51.1k R329 5