Reset Circuit Part; Sensing Of Temp Part - Samsung SR-61KTC Service Manual

9-3. RESET CIRCUIT PART

9-4. SENSING OF TEMP PART

1) SENSOR is vsing the THER with labor coefficint, if temp. is high, resistance is low on the contrary if temp.
is iow, reissitarce is high.
2) According to sensor, voltage of input to MICOM is calculate,
Vf =
Rth + 10㏀
Rth
X Vcc(Vcc:5V, Rth:SENSOR RESISTANCW)
RESET circuit part is performed the eariy state all
program furction when input power and confimate
power to MICOM for suddeniy electricity failure, it is
initialed to PAM of inside MICOM. when confimate
power RESET' S vltg is "LOW"state during
sevweal tens uses and it is "HIGH"state as nomal
operation state.
SENSOR OPEN
Inpat MICOM "HIGH"
－29－
SENSOR SHORT
Inpat MICOM "LOW"