5.3、总体电路图
16
D2LED-REDBUZ1BUZZERABC1312111091514D13121110915146U7:B74LS08QAQBQCQDQEQFQGU4QAQBQCQDQEQFQG74LS48U374LS48ABCDBI/RBORBILT4U4(LT)7126453ABCDBI/RBORBILTU3(LT)7126453U5:A21374LS021U9:AU7:A13274LS32321245U10:A674LS21U5:B54674LS02U5:C74LS08810974LS02U5:D11131274LS02U6:A2112133103267Q0Q1Q2Q3TCUTCDU274LS1921213326774LS029U7:C74LS08Q0Q1Q2Q3TCUTCDU174LS192UPDNPLMRD0D1D2D3151109541114UPDNPLMRD0D1D2D315110954111438U11:B74S04421U12:A74LS00R1(1)311N400174LS08U7:D13112U1:AQ1574LS08R2(2)12R11kJCLK116S4RKQ14R274LS761k3C11000nFRV2RVCC54=1U8:A2100k48U0QDC37ABCDRV173\V100k2GNDTRTH6D2210A03C22D1110A030.01uf1555C1110uf5
17