Daewoo DMB-1822LH User Manual page 62

Power Supply(1)
Communication line
DESCRIPTION
DC Power Supply in circuit needs +12V and +5V. +12V is used for Triac Driving Photo Triac, Buzzer Driving
Swing, Sweep Motor.
And it is regulated +5V DC by Regulator IC7805.
Oscillator(2)
DESCRIPTION
Oscillatory Frequency drive Micom, it is made up 8MHz resonator oscillatory Freqency.
Ocillatory wave is as following Fig 2-1.
I.D.U
{
Zero cross
12V
GND
CN4
19
OSC
20
8M
59
O.D.U
V -10%
DD
V +10%
SS
Fig 2-1