J1 D17 D18 J3 DIODE DIODE +VCC 1 1 VCC+ F1 FUSE1 J2 1 VCC- C5 CAP R20 RES2 R21 C6 SW1 SW SPST RES2 C3 1 8 U2 2 7 3 NEC555 6 4 5 CAP C4 1 8 U1 2 7 3 NEC555 6 4 5 CAP C2 CAP C1 CAP R19 CAP RES2 R22 RES2 Q1 NDS351AN VR1 POT1 R17 RES2 R18 RES2 C7 CAP R23 RES2 R1 RES2 D1 LED R2 RES2 D2 LED R3 RES2 D3 LED R4 RES2 D4 LED R5 RES2 D5 LED R6 RES2 D6 LED R7 RES2 D7 LED R8 RES2 D8 LED R9 RES2 D9 LED R10 RES2 D10 LED R11 RES2 D11 LED R12 RES2 D12 LED R13 RES2 D13 LED R14 RES2 D14 LED R15 RES2 D15 LED R16 RES2 D16 LED