Alto-DigmodDSP2-dsp-sch 电路图 维修手册.pdf

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1、12345678 A B C D 87654321 D C B A 84 U101C NE5523D8 D119 DLED ROSSO R189 10K R177 1K5 GND 1 2 3 + _ U104A LF412CD R170 82K R176 1K5 GND R172 10K R171 82K R164 1K R163 1K 7 6 5 + _ U104B LF412CD R188 10K A36 A23 R173 10K R312 R318 GND A27 R302 10K R129 10K R131 47K R1021K R103 GND A-B R147 10K +5V R1

2、30 10K R136 3K3 R114 10K A25 R334 GND R331 +VCC GND R138 1M5 R139 10K GND R141 47R GND R143 47K GND R128 4K7 R144 1K R134 47R 1 2 3 + _ U101A NE5523D8 C130 2n2F50V GND R179 2K7 C1291.8nF50V R180 2K7 R175 2K7 GND A29 R96 10M A-B1 R186 15K R169 GND C150 R313 R165 1K5 R142 33K A25 C128 1nF GND 7 6 5 +

3、_ U102B NE5523D8 R200 1M C122470pF GND R168 680R R162 1K 1 2 3 + _ U102A NE5523D8GND R161 1K R167 1K R166 1K +VCC R337 R301 10K A28 C133220pF GND C126 470pF C132330pF R174 12K1/4W R316 10K1/4W A36 R185 12K1/4W R315 10K1/4W A21 R314R311 A24 GND R317 A30 R325 GND R323R324 C153 GND 7 6 5 + _ U101B NE55

4、23D8 C137 470pF R15410K R156 10K A32 R155 10K C136 470pF GND R157 10K A33 R187 47R A31 R98 1M R210 1M A5 R183 2K7 R181 3K3 +VCC R182 3K3 GND R178 2K2 8 9 10 + _ U110C GUAINA 1 2 3 + _ U110A GUAINA 7 6 5 + _ U110B GUAINA GNDGND 14 13 12 + _ U110D GUAINA R330 R332 GND R333 GND+VCC R335 GND R322 R321 R

5、326 +VCCGND R320 R148 10K +5V 411 U110E GUAINA 411 U103E TL074CD 1 2 3 + _ U103A TL074CD 7 6 5 + _ U103B TL074CD 8 9 10 + _ U103C TL074CD 14 13 12 + _ U103D TL074CD R159 100K R319 10K +VCC R158 100K R104 47K GND TO-U8-8 R308 100K A26 TO-U6-9 R150 10K GND R149 10K +VCC R151 10K TO-U103-6 R135 100K +V

6、CC R152 10K R153 10K R145 4K7 R146 2K2 GND D16 LED VERDE R1001 10K +VCC GND D17 LED VERDE R1002 4K7 +5V GND R112 15K R113 1K5 C123 3.9pF 34 U105B HEF4069 1312 U105F HEF4069 1110 U105E HEF4069 98 U105D HEF4069 TR17-E TR15-E 12 U105A HEF4069 R109 15K 56 U105C HEF4069 R110 1M C103330pF TO-U5-12 R111 12

7、K1 C104 100nF R108 2K7 R107 2K7 GND +VCC 84 U102C NE5523D8 84 U104C LF412CD C127 100nF C124 100nF C125 100nF C119 100nF C121 100nF C120 100nF GND -VCC +VCC 714 U105G HEF4069 C117 100nF C106 100nF +VCC GND L101 1000uH C102 100nF C1051nF 1 1 2 2 3 3 R327 1 1 2 2 3 3 R336 GNDGNDGND D122 D112 6.6VZ MMSZ

8、5235B D114 6.6VZ MMSZ5235B C148 C147 C154 C116 10uF10V C135 C138 C131 10uF10V C134 0R D123 R328 D105 DLED ROSSO R184 VT90N1 TERMORETRAIBILETERMORETRAIBILE TERMORETRAIBILE TERMORETRAIBILE TERMORETRAIBILE 21 3 D106 BAV99 21 3 D107 BAV99 21 3 D110 BAV77 21 3 D111 BAV70 21 3 D121 D115 21 3 D109 BAV70 21 3 D120 RadioFans.CN 收音机爱 好者资料库