Daewoo FR-631KD Service Manual - 1. External Views

Summary of FR-631KD

  • Page 1

    Service manual refrigerator model: fr-631kd daewoo electronics co., ltd. Http://svc.Dwe.Co.Kr jan. 2004 s/m no. : fr631kd012 ✔ caution : in this manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information,please re...

  • Page 2: Safety and Precautions

    1 safety and precautions 1) for starters, be sure to check any chances of the leakage of electricity 2) you could handle a part in the vicinity of electricity after unplugging 3) you should put on rubber glovers to prevent an electric shock on operation test 4) make sure the rated current, voltage, ...

  • Page 3: 1. External Views

    2 1. External views 1-1. External size 1-2. Name of parts 1 freezer compartment lamp 2 shelf ffreezer 3 case icing 4 guide icing 5 ice box 6 refrigerator compartment lamp 7 cover cubic duct 8 fresh case 9 shelf refrigerator 0 deodorant q cover vegetable w case vegetable(b) e case vegetable(a) r guid...

  • Page 4: 2. Specifications

    3 division contents model name fr-631kd freezer 138 usable capacity (l) refrigerator 366 total 504 width 818 external dimension( mm) depth 752 height 1818 refrigent r134a 110 cooling system fan cooling system cooling &control system defrost system fin evaporator forced deforst control automatic star...

  • Page 5: 3. Operation and Fuctions

    4 3. Operation and fuctions 3-1. Function list 1-1. Freezer temperature input control object contents remark 1. Temperature dial 2. F thermostat 3. On / off diff. 1. Comp 2. F-fan 3. C-fan 1. Freezer temperature is controlled by freezer temperature dial. Weak middle strong 2. Comp, f-fan and c-fan a...

  • Page 6

    5 input control object contents remark 1. Accumulated work time of comp 1. Defrosting mode 1. What to consider in determining the defrosting cycle ☞ total (accumulated) work time of comp 2. Conditions to start defrosting mode ☞ when total work time of comp is more than 8, defrosting mode starts unco...

  • Page 7

    6 input control object contents remark 1. Door switch 1. F-fan 2. R-fan - r-fan turns off when door switch turns on. 1. F/r-fan movement by door switch - when door is open, f-fan and r-fan turn off simultaneously. - when door sw is closed and fans turn on, r-fan first turns on and 0.2second later f-...

  • Page 8

    7 3-2. Circuit & wire diagram defrost heater bimetal wh bk br red bu bk bk door s/w f-lamp r-lamp temp fuse 77 ± 5 ° c bk wh input.

  • Page 9

    8 3-3. Circuit 1) power part 1-1) circuit diagram 1-2) noise prevention of line power point oscilloscope measurement remark a - filter function to prevent the line voltage noise under 20mhz.

  • Page 10

    9 1-3) noise prevention in turn-on of switch power ic point oscilloscope measurement remark b - prevention of surge noise when switch power ic1 turns on. 1-4) initial voltage of switch power ic point oscilloscope measurement remark c - ic1 initial move- ment circuit - initial voltage : 15v - after i...

  • Page 11

    10 1-5) power protection function point oscilloscope measurement remark d - circuit protection function - abnormal mode of short etc. At 2nd side - when vcc is sensed as "below 10v", it blocks the power to protect the circuit. 1-6) constant voltage control circuit point oscilloscope measurement rema...

  • Page 12

    11 2) output control part 2-1) circuit diagram 2-2) wave of point a-a" in control mode point oscilloscope measurement remark a-a" - in control a : h/l signal repetition a' : h/l signal repetition a" : h/l signal repetition - at door open a : h signal a' : h/l signal repetition a" : h/l signal repeti...

  • Page 13

    12 2-3) wave of point b-b" in control mode point oscilloscope measurement remark b-b" - at door close * ce1 of point b charges & dis- charges accord- ing to on/off of point a. * point b voltage : 1.5v * logic signal : l - at door open * point b voltage : 6.5v * logic signal : h 2-4) wave of point c-...

  • Page 14

    13 2-5) wave of point d-d" in control mode point oscilloscope measurement remark d-d" - at door close * point d voltage : 1.3v * fan work is pos- sible due to q4-5 flow. - at door open * point d voltage : 0.2v * fan does not work..

  • Page 15: 4. Diagram

    14 4. Diagram 4-1. Air flow diagram freezer pocket please don’t put long term storing items such as ice cream etc. It might be melted because of opening the door freguently. Freezer pleas don’t put bottles such as beer, beverage etc. It might be broken because of freezing chilled room it is good for...

  • Page 16

    15 4-2. Refrigrant cycle diagram c o m p r e s s o r w i - c o n h o t p i p e d r y e r e v a p o r a t o r a c c u m u l a t o r s u c p i p e p i p e c o n s c a p i l l a r y t u b e.

  • Page 17

    5. Exploded view and parts list 5-1. Total exploded view 16.

  • Page 18

    17 5-2. Total parts list no part code part name part description q'ty remark 1 3010018600 assy cab urt 5080kb 1 2 3012905400 hinge *t scp-1 t2.3 1 3 3016001230 special bolt t/u m6x22 4 4 3011429000 cover *t hi pp 1 5 7112401211 screw tapping t1 trs 4x12 mfzn 2 6 3010521900 cover m-pcb box pp vo 1 7 ...

  • Page 19

    18 no part code part name part description q'ty remark 42 3011113610 case vapori pp 1 43 7112401211 screw tapping t1 trs 4x12 mfzn 1 44 3956130r50 compressor hpl30yg-5 1 45 3016002500 special wasr sk-5 4 46 3018119980 switch p relay as 4tm308nhbyy-52, s330 1 47 3012610000 clamp band relay sk-5 1 48 ...

  • Page 20

    19 no part code part name part description q'ty remark 80 3011428702 cover v/case san(5080nb/kb) 1 81 3011110500 case vegetb *r a san 1 82 3011111000 case vegetb *r b hips(5080nb/kb) 1 83 3014700200 roller v/case *r/*l = 2/2 4 84 3015303300 supporter roll *r/*l = 2/2 4 85 3017815002 shelf r *u as gl...

  • Page 21

    20 no part code part name part description q'ty remark 114 3012307620 gasket r dr as pvc-s 1 115 3019012300 pocket f *u hips 1 116 3019012200 pocket f *t hips 1 117 3012307520 gasket f dr as pcv-s 1 118 3010017900 assy f dr emboss 1 119 3010026300 assy r dr emboss 1 120 3012610900 handle f abs 1 121...

  • Page 22

    21 5-3. Machine room exploded view and parts list no part name 1 base cab *b 2 screw machine 3 cord power as 4 screw tapping 5 compressor 6 absorber comp as 7 washer special 8 base comp as 9 dryer as no part name 10 cable tie 11 case vapori as 12 pipe wi-con as 13 screw tapping 14 drain hose b as 15...

  • Page 23

    S/m no. : fr631kd012 daewoo electronics co., ltd. 686, ahyeon-dong mapo-gu seoul, korea c.P.O. Box 8003 seoul, korea telex: dwelec k28177-8 cable: “daewooelec” printed date: jan. 2004.