Page 320 - Embedded Microprocessor Systems Real World Design
P. 320
OVERRIDE LEO
b OLEO
SLED
KOVR
SG
SF
R23 Q4
SE
R16 2N3908
SD D hh*ch R22 Q3
220
R17
2 m +9
R21 Q2 A
R18
SB AnAn ,,
220
Rl 9
SAP E*nhh I--I> +9v
220 Q1
R20
D RELA\
-
3055
K3 D 'I
Figures A.5
Pool Timer Schematic.
