对讲机t260sch

1 2 3 4 5 6 7 8 A B C D 87654321 D C B A C8 102 NC C76 103 R79 100R D2 S356 R74 47k C77 103 R68 47k R56 330R 1 3 2 FL2 21.4M VT14 QY R29 330R R32 220k R83 4K7 R98 4k7 C126 2.4p R104 47k R114 560R R115 1k R111 3k3 R87 47R C108 102 C131 470p C116 470P C129 1p C115 2p VT19 R25 C112 10p C49 470P R100 20K R91 4k7 C117 1p VT15 R25 R76 10k R84 22R L20 22nH C103 103 R99 4k7 L19 4T L25 2.2uH R113 560R R81 470R R67 2k C95 470p C83 104 C96 102 C20 104 E6 476 C82 104 C97 100p R82 1M C4 470P R85 2.7K C85 102 C79 102 31 2 PW-SW1 10k C137 470p C113 1p R106 2k2 R16 100R 34 FR1 CD49 C94 102 C111 103 D8 S356 VT01 124E C121 1PR107 180R R94 5.6K E17 225 L27 2.2uH VT18 R25 R90 27k C110 5p C99 102 C136 470p C134 470p L9 4T C118 202 C109 105 C72 5p R38 2k L5 2.2uH C128 470p C218 103 C68 1p R47 22R C89 5p C55 8p R15 470R CN2 L7 7T C80 5p C62 2p C86 5 P L18 4T L4 7T L17 3T L6 5T L14 3T R9 10k C102 202 R36 47R C69 0.5p 5M D6 4148 C88 10p R69 22R VT11 R25 C67 5p VT10 BLT50 C57 102 C58 18p 5T R86 330R VT13 117 R72 100R L10 4T L21 22nH D12 T2 C130 15p C100 103 C133 104 5CD3S356 C81 0.5p C87 5p VT16 117 L3 4T VT17 LY E4 225 R17 100R D13 T2 L26 2.2uH L23 4T*1.0*0.41 E14 475 MOD VT20 K52 MONI R5 10K R8 10K MIC JACK 3.5 ST PTT VT3 LY VT1 LY A 0 1 A 1 2 A 2 3 V SS 4 SD A 5 SC K 6 N C 7 V C C 8 U8 24C08 OSC11 OSC22 MIXO3 VCC4 LIMI5 DEC16 DEC27 QUO8 AOUT 9 FITI 10 FITO 11 SQU 12 SC 13 CDI 14 GND 15 MIXI 16 U7 MC3361 C135 104 CR3 4M C101 102 R108 560R D11 4148 R109 150k C73 102 C46 22P R62 1k D7 4148 R105 10k R103 1k R88 3.3k C105 472 ANT C47 22P C11 103 R45 47k C10 102 C31 102 MIC2 R24 470R R23 1k8 R21 2k2 R59 4k7 R60 10k D1 S356 R89 12K 5T R64 1k LED1 GRN LED2 RED R110 1k E15 225 C605 102 E8 476 VT9 BV5 R63 10k VT8 BV5 R61 10k VT7 BV5 R51 10kR55 2k C104 3p RX:1 TX:0 RxD 1 28 2 27 3 26 4 25 5 24 6 23 7 22 8 21 9 20 10 19 11 18 12 17 13 16 14 15 U6 64R23 R221 1K C50 2P C93 103 E13 225 C138 104 R1 560R R210K E10 225 C24 104 C7 3p C70 15P C60 7P C53 12P L15 4TL1 4T L2 7T 1 3 2 FL1 21.4M C98 1P 1 3 2 FR2 455K C61 102 C125 105 R96 47R C123 103P T-260L V1.2 C122 104 C30 473 L24 2.2uH 原理图 R80 2k C92 5p C65 102P C124 225 C26 105 C34 333 C27 682 C39 183 C35 472 R42 470k R37 27k R50 4.7k C38 105 C28 682 R53 5.6k R54 5.6k R48 1M R35 5.6k R39 15k A0 1 A1 2 A2 3 VSS 4SDA5 SCK6 NC7 VCC8 U4 NJM2904 E9 2.2u C45 103 R75 NC R78 NC D4 OR L22 0.22u C107 104 15mA 21mA 32mA Vp12 Do RF3 GND4 Fin+5 Fin-6 GND7 OSCi8 Vc11 Vp2 19 Vc2 20 CLK 11 DA 12 LE 13 GND 14 Fin- 15 Fin+ 16 GND9 LD10 Do IF 18 GND 17 LM2332 U5 2332 C78 12p CR1 20.945M C84 12P R101 27K Vc Out adj 13M C01 100p C9 470P R20 47k 3 1 2 VR2 50k R65 100K C221 470P 4321CH SW R57 10k R58 10k R10 10k R6 10k Rx Tx D10 T2 R97 100R NC VT12 R25 R70 8.2K R73 4R7 C127 100p MOD3 1 2 VR1 5K + _ U3 4558 + _ U3 4558 C15 51p R27 680R R25 330kR28 270k C14 51p C13 223 R34 270k R46 82k R30 330k R47 82k R33 220k R31 10k C32 102 C18 202 C33 220P 1 2 3 4 8 5 6 7 C25 102 R22 47k R41 47k C12 103 C51 5P C52 NC L16 2.2uH R66 100R C66 103 R71 4R7 C63 104 C91 102 R117 470k R112 470R R116 470R C132 225 L8 4T C74 5p NC4 0.5p C90 1p L11 4T L12 2.2uH C36 39p C40 102 R49 100R D5 4148 3 1 2VR3 50k E 7.2V VBB POWER SW Vin1 G N D 2 Vout 3 U2 REG 5V C6 102 E5 226 C54 104 R52 4.7K E12 476 SPK 8R SP JACK 2.5 ST C1 104 C - 1 G 2 + 3 _ 4 O 5 V + 6 SC 7 C + 8 U1 LM386 E2 107 VT4 BV5 VT6 LY R12 10k R14 2.2k R11 47R D14 4148 C29 105 VT2 BV5 C140 102 R13 10K E18 106 R4 2K VT5 LY C106 104 R19 560RC3 104 R92 1k R93 22k R18 10k R7 1k C02 104 R44 2k C22 104 C19 470P C21 103 C114 102 C56 104 C48 103 E11 105 C43 104 L13 0.22uH C42 103 XTALN 1 XT/CLK 2 S-CLK 3 C-DATA 4 R-DATA 5 CSN 6 IRQN 7 NC 8 A/D CAP 9 VSS 10Bias11 R-AM-I12 R-AM-O13 R-AU-O14 T-AU-I15 T-AU-O16 VOL-IN17 T-SUB-O18 VOL-OUT19 VDD20 IC901 CML808 C908 470P R 90 8 47 k R906 470k C906 104 C903 100p C901 105 C907 104 R904 120K C904 225 5V R901 82k R903 120K R905 100k R902 82k 808-260V1 R 90 7 22 k GND AFO AFI 5C MIC MOD 4MHz IQ RA CE CK DA R 90 9 47 k C905 104 C902 105 C909 470P GND AFO AFI 5C MIC MOD 4MHz IQ RA CE CK DA 批准： 拟制： C59 4P R700 0R C71 102 C41 104 C142 224 C23 102 C64 NC TX 5R CR2 Port Port Port Port Port C119 100P C120 102 C17 104 C16 103 C2 104 R3 4.7R E1 106 E7 225 R01 0R DQT DQT R02 NC