Carvin-CX1272-mix-sch维修电路原理图.pdf

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1、ODD CHANNELS ONLY 47K 1.5K 22K 1.5K 2.2K 2.2K 4.7K 47K PHANTOM BUSS PHANTOM BUSS MONITOR OUT L TAPE SEND R TAPE SEND 20dB ATTN. EFF2 SEND EFF2/TAPE EFF2/TAPE EFF2/TAPE DSP SEND L/R MAIN L RETURN R RETURN MONITOR +15VDC -15VDC +15VDC +15VDC 1N4003 +15VDC .047F P10.A P10.B A13.A L OUT R OUT 250Hz125Hz

2、 .0047 5.62K 2.21K 2.21K .001 .022 LEVEL A16.A A14.A 250Hz125Hz .0047 5.62K POWER 680pF 82pF 82pF RIGHT RIGHT 4.7K 4.7K 4.7K 4.7K J3.B J3.D A3.A A3.B A4.A A4.B A5.A A5.B A6.B A6.A A7.A P8.A P8.B P9.A P9.B J3.A J3.C A9.A A9.B B50K B50K B50K 56pF B50K 56pF B50K 150K 470 B50K 150K 470 B50K 82pF 470 82p

3、F N/U N/U 470 60Hz 2.4K 2.2K .022 150K 300K 2.2K 220K A1.A A2.A A1.B 82PF82PF 300K S1.A 27PF 27PF 300K S1.B B50K B50K B50K 3.3K B50K 39PF .047 .047 LINE R106 R105 C106 C105 60Hz 2.4K .022 150K 2.2K 220K 150K 150K LEFT B50K 100K 100K 150K LEFT 150K 150K B50K B50K H2.C H2.F H2.AH2.B 22K 4.7K 22K 4.7K

4、10K 10K C31 C32 C33 C35 C34 C47 C38 C41 C44 C46 C48 C49 R24 R34 R45 R31 R36 R37 R38 R39 R55 R56 R54 R58 P12 MONEFF R46 R50 R48 R47 R52 C39 C42 R51 P20P21 R71 R70 R73 C71 C70 R72 C73 C72 P25 R83 R82 C83 C82 22K 22K 10K 10K C45 B10KB10KB10K .47 .22 .01 R10 R11 R12 R13 R15 R16 R17R18 R20R19 R21 R22 C10

5、 C11 C12 C14 C15 R14 MID LOW 22K 47K MIC C13 P30P31 R94 R93 C94 C93 C96 C95 P35 B10KB10K .47 .22 .01 R53 R57 C16 R35 R32 150K TOP R63 R62 R25 JMP P13 R40 R27 R28 EFF MON C53 C54 470 470 R29 R49 C17 .1 .1 J8 J9 10 10 10 10 10 10 10 R1 R3 R4 R7 R6 R8 R9 C3 C4 C1C2 C6 C7 C8 C9 P1 P2 P3 P4 J1 1% 10 10 1

6、% 1% 10 HI 10 cw cw cw J2 R5 C5 10 10 R2 1% 10 J4 J5 1K D1 1K D2 D4 1K S4 P5 P6 0 0 + + + 2 3 + 1 6 5 + 7 2 3 + 1 6 5 + 7 2 3 + 1 6 5 + 7 6 5 + 7 2 3 + 1 2 3 + 1 L + + 2 3 + 1 2 3 + 1 6 5 + 2 3 + 1 2 3 + 1 6 5 + 7 + 21 3 2 3 + 1 2 3 + 1 R RL + + B B B 1N4003 R23 R44 R59 470 DSP CLIP 2.2K D11 10K D12

7、 +15VDC Q4 2N5550 RED C30 10 C37 10 22K R64 22K R26 22K R60 H2.D H2.E 22K R33 22K R65 680pF C36 R30 680pF C29 B6 B7 A7.B 6 5 + 7 H2.G H2.H S2.B 10K15K 0.001 C20 R41R42 cw cw PAN 10K R43 A8.A 2 3 + 1 R66 22K R67 22K R68 10K A8.B 6 5 + 7 R69 10K R80 10K S2.A J7 INSERT J6 INSERT -15VDC ON A1 680pF C21

8、22K 1N4003 D6 D7 .001 C22 10K R81 A20.A 2 3 + 1 47K R104 10K R116 C23 10 YEL RED P7 B A CHANNEL 1-12 FOR CX1272 CHANNEL 1-8 FOR CX872 R117 10K C24 0.1 + D8 D9 470 /25V C25 + B B B 330PF C26 330PF C27 B10K 10KR61 1.5K R129 1.5K R49 R121 0 1.5K R150 C28 10 RadioFans.CN 收音机爱 好者资料库 12340 WORLD TRADE DR.

9、 SAN DIEGO, CA 92128 RIGHT CHANNEL OUT LEFT CHANNEL OUT (619) 487-1600 FAX 487-6629 REVISED BY: APPROVED: DRAWN BY: 470 /25V 470 /25V UNREG + PROTECT L OUT R OUT GROUND GNDDIG +15VDC -15VDC -15VDC +15VDC GNDDIG A10.A A11.A A12.A A13.B A19.A A10.B A11.B A12.B 500Hz .0022 250PF .0068 .0033 .0047 330PF

10、 A15.A A16.B A17.B A19.B A18.A A14.B A15.B A17.A A18.B 250Hz500Hz .0022 250PF .0068 .0033 .0047 330PF DATE: DATE: ASSY. DATE: ARVIN .001 .001 A9.B R115 330PF C114 R114 150K 470 470 150K 2.2K 2.2K 1.8K 2.2K 300K 360K .033 .001 110K 180K .068 2.4K .022 .001 130K 2.2K R100 C100 R102 R101 C102 C101 R108

11、 R107 C108 C107 R110 R109 C110 C109 R112 R111 C112 C111 C113 R113 330PF 2.2K 2.2K 1.8K 2.2K 300K 360K .033 .001 110K 180K .068 2.4K .022 .001 130K 2.2K 110K 110K H1.A H1.J H1.B H1.F H3.C H1.G H1.E H1.D H1.C R103 REV: REV: P22P23P24 R73 R72 R75 R74 C75 C74 R77 R76 C77 C76 R79 R78 C79 C78 P26P27P28 R8

12、5 R84 C85 C84 R87 R86 C87 C86 R89 R88 C89 C88 C90 R90 R92 J10 J11 B10KB10KB10K 16K 10K C91 R91 B10KB10KB10K 91K EFFMON P32P33P34 R96 R95 R98 R97 C98 C97 R99 C99 P36P37P38 B10KB10KB10K 16K 10K B10KB10KB10K 91K TOP TOP C18 C19 D10 NO: PCB NO: 2K 2K 1K4K 10 10 2K8K 1K4K2K8K 1K 1 2 3 + 1 2 3 + 1 2 3 + 1

13、 6 5 + 7 2 3 + 1 + 7 6 5 + 7 6 5 + 7 6 5 + 7 1 2 3 + 1 6 5 + 7 6 5 + 7 6 5 + 7 2 3 + 1 6 5 + 7 6 5 + 7 2 3 + 1 6 5 + 7 + C H3.D GROUNDH3.B N/UH3.A H1.H H1.I 1DEC94 LEFT CLIP D3 RIGHT CLIP D5 30-12724 RED RED RED 00001 00011 00010 COMM ENC1 H5.A H5.B H5.C H5.D H5.E H5.F H5.G H5.H H5.I H5.J 30-08724 CX1272 CUT RESISTORS: R29, R49, R121. RadioFans.CN 收音机爱 好者资料库