Carvin-C1644-pre-sch2维修电路原理图.pdf
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Carvin-C1644-pre-sch2维修电路原理图.pdf
MICROPHONE CHANNEL MIC-PRE GAIN ERIC PETERSEN 100 smt 1/4w 100K smt 1/4w 5.6K smt 1/4w 5.6K smt 1/4w 100 smt 1/4w 22F 35V SMT 10K smt 1/4w 10K smt 1/4w 10K smt 1/4w 10K smt 1/4w 10K smt 1/4w 10K smt 1/4w 22F 35V SMT 22F 35V SMT 22F 35V SMT 10K smt 1/4w 10K smt 1/4w Green small LINE GAIN MASTER INV -16dB min Red small Red small 82pF smtX 48dB max 16dB max PFL CNTL 75Hz cut 82pF smtX PHAN SW MON 4 4dB min PHAN SW 5.6K 5.6K +15VDC +15VDC -15VDC INSERT MIC IN .022U PHANT PHANT MON4 MON 1 H11.A H11.D H11.E H11.C H11.F H11.B H11.G H11.H S10.A PHANT S10.B 1.51K 1.51K 2.21K 2.21K .022U .047U A15.A A11.B A13.A A11.A A12.B A14.A A12.A R140 R141 LINE GAIN C10K 39PF 39PF 82PF PEAK S11.A S15.A H1.A H1.D H1.E R137 R138 R130 R139 R136 R135 P9.B P9.A S16.B S16.A S15.B H1.C H1.F H1.B .01U H1.G H1.H MON1 .047 PHAN R100 MUTE 3.3K 100k 3.3K 2.2K 68 C121 C120 R117 R121 R111 C111 R127 R118 R143 R142 R106 R114 R113 R115 C110 C112 R145 R128 R129 C114 R102 R108 R116 C116 C900 R900 R144 3.3K R921 R925 R119 R105 R101 C103 C104 C117 R104 R103 C101C102 R107 R110 C109 C106 82F R109 C105 C113 C107 C108 560p R112 560P R122 R123 C115 C119 R120 1K 4.7 4.7 C122 C123 10K SIG LOW PAN 50K 50K 50K 220P 50K PFL MID 50K TAP TAP 50K D10 47k 15N 15P 15P 15N 10K 10K 47K 47K 2.2K 1K 1K 82p 10K QC1 1K P5 J3 J2 P4 cw HI P2 cw cw P7 cw P1 cw 22 22 cw P3cw D2 cw J1 22 D1 !- + + 2 3 + 1 + + + + + + + + + + 1 + 2 3 + 1 + + FadrD10K60m10 P11 cw zener 9.1V SMT Z11 MID SWEEP P10.A P10.B cw cw 15C50Kx2 80-16441 ERIC PETERSEN 8 CHANNEL INPUT PCB 12340 World Trade Drive San Diego, CA 92128 (858) 487-1600 FAX 521-6032 REVISED BY: APPROVED: DRAWN BY:DATE: DATE: ASSY. DATE: ARVIN REV: REV: NO: PCB NO: C C1644 SERIES MIXER 10K smt 1/4w 10K smt 1/4w 10K smt 1/4w 10K smt 1/4w BUSS 1 BUSS 2 BUSS 3 BUSS 4 RIGHT R133 R134 R131 R132 S18.A S18.B S19.A S19.B S17.A S17.B LEFT EFF 2EFF 1 P8 cw EFF P6 cw MON2-3 MON2 MON3 10K 22K R146 2.2K Q1 R147 47K R148 470K -15VDC -MUTE 1 -MUTE 1 D3 MON4 EFF 1 H2.A H2.B H2.D MON1 MON2 H2.E H2.C MON3 EFF 2 H2.F MON4 EFF 1 H12.A H12.B H12.D MON1 MON2 H12.E H12.C MON3 EFF 2 H12.F 10K RIGHT LEFT PFL BUSS 1 BUSS 2 BUSS 3 BUSS 4 H3.H H3.G H3.A H3.E H3.F H3.B H3.C H3.D RIGHT LEFT PFL BUSS 1 BUSS 2 BUSS 3 BUSS 4 H13.H H13.G H13.A H13.E H13.F H13.B H13.C H13.D H2.G H2.H H12.G H12.H PFL CNTL PFL CNTL D GND D GND D GND 04JUN01 C2 22 + C1 22 + 100Hz-5KHz MID SWEEP 30-16441C A 29AUG01 120pF REFERENCE DESIGNATORS ARE IDENTIFIED BY THE FIRST DIGIT. CHANNEL 1 ARE THE 100S, IE: R102, C123 CHANNEL 2 ARE THE 200S, IE: R202, C223 CHANNEL 3 ARE THE 300S, IE: R302, C323 CHANNEL 4 ARE THE 400S, IE: R402, C423 CHANNEL 5 ARE THE 500S, IE: R502, C523 RadioFans.CN 收音机爱 好者资料库
