Daewoo ERF-334M, Service Manual

Page: 59 / 67

5 8
Pcb Control Functions
Nº FUNCTION CONTENTS
16 R-SENSOR
OFF POINT
ADJUSTING
OPTION
3) Control
3.1- When Comp. is on, R-SENSOR HTR is off.
When it passes 6 min after COMP. was off, R-SENSOR HTR is on.
3.2- COMP. can’t be on within 40 min after COMP. is off.
3.3- When it is Mode of General TEMP. or RT-SENSOR ERROR (open or
short), R-SENSOR HTR is off.
3.4- The change of R-SENSOR OFF POINT: R-SENSOR OFF POINT
increases 3.
(0.5ºC 3.5ºC)
4) Check function of R-S HTR
At initial operation, R-SENSOR HTR turn on and off four times for 8sec.
1) R-SENSOR OFF POINT can be adjusted by changing the input voltage of
MICOM 8 pin.
2) The default of input voltage is 0V.
3) The changed OFF POINT is base OFF POINT + OFF POINT of input
voltage.
4) The change of R-SENSOR OFF POINT depend on the input voltage of
MICOM.
5) APPLICATION (MAIN PCB)
5.1- Default: MICOM 8 PORT – 0V.
5.2- Change of R OFF POINT 1.0 deg
q
: changing R42, R43 after
deleting J7.
EX) A) delete J7 B)R42: 10 K
Ω
C)R43: 10 K
Ω
MICOM 0 1.0 1.5 2.0 2.5 3.7 5.0
INPUT (V)
OFF
POINT 0,5 1.0
Q
2.0
Q
3.0
Q
1.0
q
2.0
q
3.0
q
Variation (ºC) (DEF)
R42, 43 J7 R42: 40 R42: 23.3 R42: 15 R42: 10 R42: 3.5 R42: 10.0
(K
Ω
) (in use) R43: 10 R43: 10 R43: 10 R43: 10 R43: 10 R43: DEL