Display Circuit - Samsung ER-220 Service Manual

4-3 RESET AND POWER FAIL DETECTION CIRCUIT
The reset circuit prevents the CPU f i
rom st
the ace is fully powered-up and initialized. pune aPetinnes ees oke
e power fail detection circuit is to save th
oe
we
e state
of th
nm s meaningful
data before
the logic voltage
of CPU goes
Pisani
e normal operation
voltage on the condition
such as main
power off =
4-4 DISPLAY CIRCUIT
This circuit is composes display and turret(c ; ustomer) for di
lager ia i og Parr Digit and segment sinal Bd rane
: tout: vie : :
Fee cea p e Digitron by the amplituding IC IR2CO5 through LATCH
a
RM400KX6P
3EA
ialialidislis§ |
asm
|
1 VDI