Carvin_sx100h_pre 电路图 维修原理图.pdf

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1、VOLUME1 .0068F 0.001F CH1 FET SW + A1.B A3.A A2.B A1.A A3.B 0.1F 0.0033F B50K B50K B50K B50K R127R126R120 R139 R134 R138 LOW P102 P105 P104 MID R136 R137 R135 R145 R124 C102 R121 C129 R149 C130 D107 C124 R141 R140 R142 C125 C123 R144 cw cw cw C122 C121 P103 cw HI !- + !- + !- + !- + !- + + + + D108

2、R128 R125 R101 C114 + R143 C103 + n/u C120 + 330pF 0.01F R113 R129 R130 R133 C119 + C118 + R110 0.0033 0.1 22F 1N914 1N914 0.01 0.047F A2.A R119 R118 D102 D105 !- + C113 + 82PF 1N914 1N914 C115 + 22F D101 1N914 C117B + 0.1F .0047 .001 A8.B 82pF A9.B 0.1 .01 B50K B50K B50K A9.A C207 C208 .01 R222 R22

3、0 R221 C214 R219 R223 C215 C213 R226 LOW MID R217 R218C212 R216 C211 R225 R224 R214R215 P204 cw P203 cw P202 cw HI P201 cw !- + !- + !- + R212R210 C209 + C217 + 0.1F 0.0033 .01 470 470 10K10K B50K VOLUME3 22F R207C205 6.8K + R147 C219 + 22F EFF SEND R304 Q104 +15VDC .047 C302 + -15VDC C310 C311 22 2

4、2 + + A4.A 120pF C301 2 !- 3 + 1 MASTER MAIN FX L H1.H H1.G LEFT OUT H1.A +15VDC IN H1.C -15VDC IN H1.B H1.E H1.D AGND +5 V +5VDC IN +15VDC -15VDC 35V 35V R305 R306 0 0 C309 0.1F 100K 365k R123 470K D104 1N914 1k 1k 3.3k 39pF220K C116 + 22F 2.2k 47k 47k220k 2.2k2.2k 47k 4.7k C126 + 0.1F 2.2k R150 1M

5、 CH1 FET SW - C206 R208 + 0.1 Q34 R209 1M 47k -15VDC +15VDC .047 .047 C303 C304 + + -15VDC +15VDC .047 .047 C305 C306 + + -15VDC +15VDC .047 .047 C307 C308 + + H5.A H5.B H1.F CH1 D303 CH2 D304 A12.A 2 !- 3 + 1 A12.B 6 !- 5 + 7 CH1 FET SW - CH1 FET SW + R310 R311 R308 R307 R309 FS RING +15VDC 2.2k 2.

6、2k 4.7k 10k 100k R131 R132 R213 Footswitch Tip Footswitch Ring FS TIP FS RING S2.A S2.B D302 1N914 D301 1N914 R227 R148 10k H5.C H5.D R303 R117 22K D GND D GND EFF SEND R2304 A8.A !- + 250pF C2 C3 + 0.01F D1 R2 220 D3 10K 150K 10k10k 1K 10K C112A + 1F 2.2k 22k 22k P1.A cw P1.B cw R4 47 1F 1F 1K R194

7、 R193 R196 R195 R204 R202 C91C92 1.5K 1K 220K 1.5K 10K 0.022F C95 +15VDC Q21 R5 10 22F C11 + R11 10K C16 + 27PF D5 R14 1K 33k C17 + 0.0068F R15 1K 2.2K2.2K 22K CH1 FET SW + R16 C18 + 0.1 R17 1M Q23 R19 2.2k R20 470 R21 2.2k Q22 R22 R24 R25 C20 + 0.1F C21 + 0.047F C22 + 0.1F LEFT OUT C4 + 250pF C14 +

8、 250pF 1F C15 R8 150 330 3.3K 3.3K 33K 33K R10 +15VDC 100k CHANNEL SWITCH R12 1M R13 1M R26 6.8k 47K 10K 560pF C24 C25 + 0.01F R27 22K 2.2K 0n/u R3 10K C1 + 0.1F R6 1M R7 10k C19 + 22F R18 15K C26 0.1 30- 03150 80- 03150 10DEC01A.J.Ashley SX 100/50 PRE-AMP 33K 33K 500Hz 500Hz 1M 3.3K 1M 47K 47K 1M 1

9、M 3.3K 47K 47K47K S1.A S1.B R23 150k R31 470k C9 + 220PF CH2 ON CH1 ON E. PETERSEN23APR03 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 + H4.A H4.B H4.C H4.D J 1 C23 + 1uF 22F C51 + H H 收音机爱好者资料库 Ra d i o Fa n s .CN