Daewoo Frs 2031 Service Manual

30
OPERATION AND FUCTIONS
 
CONTENTS REMARKS 1. Conditions to turn on LCD Light 
   1) Power input (plugin) 
2) When any button on the panel is pushed, first the back light turns on, then 
button control is done. 
      3) When F/R door is open, the light turns on. 
 
  2. Conditions to turn off the light 
        1) The back light turns off 10 seconds after F/R door is closed   
2) 1 minute after button control  
 
  Explanation After Delivery 
INPUT Control Object 
FREEZER SET. button 
REFRIGERATOR...

31
OPERATION AND FUCTIONS
  Delay Function of Electric Components 
INPUT Control Object 
COMP ON/OFF COMP 
F-FAN 
CONTENTS REMARKS  
1)  F-fan delay by comp. ON/OFF 
  F-fan is ON/OFF 1 minute after comp. is ON/OFF. 
 
  
2) F an Delay  and Priority    
R F A N
ON   condition
0. 5s ec .
ON
ON
ON 1. 0s ec .
1. 5s ec .
F FA N
C F A N
OF F
OF F
OF F
  
3) F / R-fan delay  by door  open/close for easy
 door opening. 
  Inspection : checkup door opening 2 hours after initial start. 
      F irst R is  ON, 1...

32
OPERATION AND FUCTIONS
  Home Bar (Refreshment Center) Heater  
INPUT Control Object 
None COMP CONTENTS REMARKS It is linked with comp.   
 
  Control of Interior Lights 
INPUT Control Object 
Refrigerator Door 
Freezer Door 
Home-Bar Door   
(Refreshment Center) COMP 
CONTENTS REMARKS 1) Control of Refrigerator Compartment Lights 
R lights turn ON/OFF by R-door switch (ON/OFF). 
        10 minutes after sensing door open, the lights turn off automatically though 
door close is not sensed.   
 
2)...

33
OPERATION AND FUCTIONS
  Regulation of R-sensor OFF Point 
INPUT Control Object 
J18, 22 on Main PCB  Resistance of R-sensor Mid OFF Point CONTENTS REMARKS  
  Regulation of R-sensor OFF point (1.5degree DOWN) 
  In case refrigeration of refrigerator is weak or insufficient, take the following action. 
R-SENSOR
OP1- 1-2
R26
R70
R71OP OP1-
1-1
 
  R26 : R-SENSOR standard resistance in normal mode (31.4K ) 
      R70 : In case of weak ref., cut J18 to down the standard resistance by 1.5deg(2K)...

34
OPERATION AND FUCTIONS
 
  Regulation of R-sensor OFF Point 
INPUT Control Object 
J18, 22 on Main PCB  Resistance of R-sensor Mid OFF Point CONTENTS REMARKS  
  Regulation of R-sensor OFF point (1.5degree DOWN) 
  In case refrigeration of refrigerator is weak or insufficient, take the following action. 
R-SENSOR
OP1-2
R26
R70
R71OP OP1-
1-1
 
  R26 : R-SENSOR standard resistance in normal mode (31.4K ) 
      R70 : In case of weak ref., cut J18 to down the standard resistance by 1.5deg(2K) 
      R71...

35
OPERATION AND FUCTIONS
 
Input Control Object 
Fully Ice Sensor 
Ice Maker Lock Ice seperation Motor 
CONTENTS REMARKS 
1-1. Ice Maker FLOW 
 
RETURN
ICE Making
ICE Drop
Supply water into the Ice maker
Check water input is normal.
 
 
 
1)   By Pushing of Ice Maker ASSY TEST S/W (Over 1 Sec.):  
TEST Mode Convert 
          (Ice Drop Mode Start with Test Mode Proceed) 
 
  2)  Ini
tial Power inpu t 
=> Ic e Make r is  horizonta l => Proc eed 
from Ice maker Mode 
 
  3)  Water-Input hose HTR Control...

36
OPERATION AND FUCTIONS
 
 
CONTENTS REMARKS 
 
1-2. Ice Maker M
ODE 
 
NO
NO
YES
YES
NO
YESYES
NO
 
 
1)  
 
2)  
 
3)   I-Sensor Error: Ice Maker Complete after 4.8HR  
I-S is -12.5    and below after 130 min.=> Ice maker complete
Although I-S isnt -12.5    below for 130 min, I-S maintains -9.5    below continuously 
=> Ice maker comlpete
 
 
2. Ice Drop MODE 
status
Ice tray
level
level
normal
level
8-11 Max 1.1
8.5-12.20.2
10 11 
1.1 
 1) Each Section’s Time used in S/W ERROR Confirm 
  2) Ice Drop...

37
OPERATION AND FUCTIONS
CONTENTS REMARKS 
3. Water-Input MODE 
N
Y
Flow-Sensor Error mode             START
Inlet value ON
Water input pulse Count=0
Y
Y
N
N
Y
N
 
1)  Convert of Water-Input Mode After Ice Drop: 
 Water-Input Valve Open. 
  2) Flow Sensor Error: Water-Input is Controlled by Time  
  3) Veriable Factor Value : Using for A/S  Steps 
     
      (Water input by Time -: Maximum Water Inut Time => 15 sec.
 
4.
 
 
 
 RT-S 7  ~13 ~19 ~29 ~39 39  
I-S -10 -9 -8 -7 -6 -5
 
Flow Sensor Normal...

38
OPERATION AND FUCTIONS
 Dispenser Control Function 
Control Object 
Dispenser SW 
Water/Ice Button 
Lock Ice Maker Button 
Freezer Door SW Dispenser Lamp 
Crusher Motor 
Flat Solenoid 
Crusher Solenoid 
Dispenser Water Valve 
Contents Remark  
 
 
1) Water/Ice Selection Button 
 
    Progress : Water   Ice Cube   Crushed Ice   Water 
   
 
2) Lock Ice Maker Button 
  Start by pushing Lock Ice Maker button 
   Lock Icer Maker is ON, 
    The Icon & Box of Cube Ice/Crushed Ice disappear,...

OPERATION AND FUCTIONS
Contents Remark 
 
4) Control Flow & Timing Chart 
 
4-1)Crushed Ice 
D.P SW (In) D.P SW (In)
Crusher Motor Crusher MotorD.P Lamp D.P Lamp
D.P S/V (Out)D
A
A
C
 
4-2) Ice Cube  
D.P SW (In) D.P SW (In)
      D.P S/V(Flap)       D.P S/V(Flap)    Cube S/V     Cube S/V
 Gear Motor
 Gear MotorD.P Lamp D.P Lamp
A
C
A
A
B
D
 
 
4-3) Water 
D.P Lamp D.P Lamp
D.P SW (In)
D.P SW (In)
Water S/V Water S/VD
A
 Delay Time : A = 500ms, B = 500ms, C = 2.0s D = 5.0s 
  
39