DAEWOO ELECTRONICS DWC-084R Service Manual
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DAEWOO ELECTRONICS DWC-084R Service Manual

DAEWOO ELECTRONICS DWC-084R Service Manual

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Contents
CONTENTS
1. Specifications ................................................................................................2
2. Operation .....................................................................................................3
3. Wiring Diagram..........................................................................................10
4. Refrigerant Cycle .........................................................................................11
5. Control Block Diagram.................................................................................12
6. Circuit Diagram..........................................................................................13
7. Trouble Shooting..........................................................................................16
8. Key Components of Electronic Circuit ............................................................26
9. Disassembly Instructions ...............................................................................28
10. Exploded Diagram and Parts List...................................................................30
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Summary of Contents for DAEWOO ELECTRONICS DWC-084R

  • Page 1: Table Of Contents

    Contents CONTENTS 1. Specifications ....................2 2. Operation .....................3 3. Wiring Diagram..................10 4. Refrigerant Cycle ..................11 5. Control Block Diagram.................12 6. Circuit Diagram..................13 7. Trouble Shooting..................16 8. Key Components of Electronic Circuit ............26 9. Disassembly Instructions ................28 10. Exploded Diagram and Parts List..............30...

  • Page 2: Specifications

    1. SPECIFICATIONS MODEL DWC-064R DWC-084R ITEM Cooling only Function Power source AC 115 V, 60 Hz Btu/h 6,710 7,800 Cooling Capacity Kcal/h 1,691 1,966 Energy Efficiency Btu/Wh 10.70 10.80 Ratio Kcal/Wh 2.70 2.72 Pts/h 2.13 2.68 Dehumidification 1,220 Power Input (W)

  • Page 3: Operation

    2. OPERATION PARTS OF NAME AND FUNCTION DWC-064R / DWC-084R PART NAME PART NAME CABINET AIR FILTER BLADE VERTICAL PANEL CONTROL BLADE HORIZONTAL FRAME GUIDE TOP KNOB BLADE FRAME WINDOW KIT GRILLE FRONT SHUTTER WINDOW INLET GRILLE REMOTE CONTROLLER...

  • Page 4: Remote Controller

    REMOTE CONTROLLER REMOTE SIGNAL TRANSMITTER TIMER/CANCEL • Everytime you push this button, timer is set as follow. (1Hr 2Hr 3Hr 4Hr 5Hr 6Hr 8Hr 10Hr 12Hr 16Hr 20Hr 24Hr CANCEL). SLEEP After the unit is timed, if this TIMER/ • SLEEP mode is selected as CANCEL SLEEP button is pushed, timer is...

  • Page 5: Remote Controller Display

    REMOTE CONTROLLER DISPLAY Room Air-conditioner REMOTE SIGNAL TEMP./TIMER DISPLAY RECEIVER • It displays the temperature and the timer. ROOM TEMP DESIRED TEMP TEMPERATURE SET • It is the button to set the TEMP desired room temperature. MODE DISPLAY The temperature can be set •...
  • Page 6 Replacing Batteries Remove the COVER from Insert two battaries. Re-attach the cover. the back of the remote • Be sure that the (+) and • Slide it back into position controller. (–) directions are correct • Slide the cover • Be sure that both batteries according to the arrow are new direction...
  • Page 7 DESCRIPTION OF FUNCTIONS OFF-Timer If you set time in OFF-Timer Mode, the unit will stop at the set time. Unit ON Unit OFF SET Time HOUR ON-Timer If you set time in ON-Timer Mode, the unit will run at the set time. Unit ON Unit OFF SET Time...

  • Page 8: Fan Speed

    Fan Speed (1) Motor speed (high speed, low speed). (2) Remote controller setting fan speed. (H, L) (3) Relation of operating mode between fan speed. FAN ONLY COOL TURBO Sleep Mode (1) When you are going to sleep, select sleep button in remocon and the unit controls the room to the desired temperature.
  • Page 9 Energy Save 1. ENERGY SAVE is operated while cooling Mode only. 2. Desired temperature is changed as follows by pushing ‘ENERGY SAVE’ button. +1°C -2°C +1°C ‘ENERGY SAVE’ ‘ENERGY SAVE’ 3. When the ‘ENERGY SAVE’ button is pushed, the fan speed goes to ‘Low’ 4.

  • Page 10: Wiring Diagram

    3. WIRING DIAGRAM...

  • Page 11: Refrigerant Cycle

    4. REFRIGERANT CYCLE Evaporator Blower fan Capillary tube Accumulator MOTOR Compressor Propeller fan Condenser Model Name DWC-064R DWC-084R Contents ID1.4Ø x L1200 ID1.0Ø x L400 x 2 Capillary tube 410g 470g Charge Quantity...

  • Page 12: Control Block Diagram

    5. CONTROL BLOCK DIAGRAM Front PCB Display Remocon Signal 88 Segment Receiver Fan mode Turbo mode Remote controller Cooling mode Operating Mode Room Converter Micom Room Temp Fan speed Sensor Desired Temp Timer Timer Energy Save Drive IC Temp setting Energy Save ON/OFF Sleep mode...

  • Page 13: Circuit Diagram

    6. CIRCUIT DIAGRAM...

  • Page 14: Part List

    Part List MAIN PCB ASS`Y (3114302140) PART NAME SPEC PARTCODE Q`TY LOC. FUSE 250V 50T 3.15A 5FVLB3152L FUSE FUSE CLIP AFC-520 3107000600 FUSE VARISTOR 15G561K D15G561K-- C-LINE ACROSS 275V 104K CLV-B3104M GP881205-2(187) 3108803400 C-CERA 104Z,50VDC CCXE1H104M CC1,CC2,CC3 C-ELEC 470UF 35V SD CEXE1V477C C-ELEC 10UF 450V SD...
  • Page 15 Front PCB ASS’Y(3114302160) PART NAME SPEC PART CODE Q’TY REMARK WAFER SMAW250-07 3108804600 WAFER SMAW250-02 3108804700 S/W TACT JTP1230A 5S50101406 SW1,2,3,4,5,6 RESISTOR ARRAY 7A 102J RA8K6102J- RESISTOR ARRAY 8A 103J RA8K7103J- RESISTOR 1/4W-12.7KF RN-4K1272F RESISTOR 1/4W-5.6KJ RD-4K562J- RESISTOR 1/4W-330J RD-4K331J- RESISTOR 1/4W-470J RD-4K471J-...

  • Page 16: Trouble Shooting

    7. TROUBLE SHOOTING Self-Diagnostic Function 1) Error Code 1(Er) Check the connector of room air thermistor. (or connecting wire) Check soldering of connecting on control P.C.B. (Error of soldering or short) Check the resistance of room air thermistor. “Press the temperature Keys (Up & Down), Error code is displayed.” Unit Not Run The power is applied to the unit Rating voltage...
  • Page 17 Only Compressor Do not Run - Check the following at cooling mode Check the voltage between Check the Main P .C.B Rating voltage “POWER ” and the circuit for relay less than 90% “RL1 ” of Main P .C.B driving. Rating voltage more than 90% Check the connecting Rating voltage...
  • Page 18 PCB DRIVING DESCRIPTION...
  • Page 19 Power Supply(1) DESCRIPTION DC Power Supply in circuit needs +12V and +5V. +12V is used for Compressor Driving Relay, Fan Motor Driving Relay, Buzzer Driving, Swing Motor Driving Relay and LED Display. DC Power, 12V, is supplying by switching performance of IC2. And, DC 5V is regulated by IC1.
  • Page 20 Oscillation(2) MICOM 8 MHz DESCRIPTION Oscillatory Frequency drive Micom, it is made up 8MHz resonator oscillatory Freqency. Ocillatory wave is as following Fig 2-1. -10% +10% Fig 2-1...
  • Page 21 Sensor(3) Room temperature Sensor Input ROOM:PT-K43C MICOM 12.7K 0.01 DESCRIPTION Number 15 of Micom is Terminal of A/D convertor Input. Room temperature is sensing by change of Thermister Resistance, Micom is put in 5V by ratio between R3 (12.7KΩ) and Room sensor. Relation between temperature and voltage is following Table 3-1.
  • Page 22 Remote Controller(4) DESCRIPTION Signal from Remote Controller put in only Control Data Signal at Micom Terminal of Number 5, which is gotten field of Carrier (38KHz) from Receive Module. Signal Wave repeat third as following Fig 5-1. But in Secondary Wave Custom Code is Reversed Face. 4.5ms 16bit 16bit...
  • Page 23 Micom Power Supply(5) 100µF/16V MICOM DESCRIPTION MICOM Power is supplied 5V at Number 28 using VDD, Number 6 using Analog Reference of A/D Converter. C9, C10 is Ripple filter.
  • Page 24 Reset(6) 5.6K MICOM 7042 + CE2 RESET IC 1µF/50 DESCRIPTION Voltage less than about 4.2V put in Micom Terminal of Number 6 and then Micom reset. Reset IC detect Power ON and Voltage greater than 4.2V, and then send Reset Signal. Vcc (+5V) 4.2V DELAY TIME...
  • Page 25 Function Selecting(7) MICOM °C / °F DESCRIPTION Selecting Function is as following table 9-1. Selection S/W SHORT OPEN Function °C / °F °C °F Table 9-1...

  • Page 26: Key Components Of Electronic Circuit

    8. KEY COMPONENTS OF ELECTRONIC CIRCUIT (1) IC3 (MICOM) TMP47C443N XOUT TEST HOLD (KE0) Display Out R92 (SCK) RESET Fan Speed(Hi) Display Out R91 (SO) Remocon Signal Display Out R90 (SI) R71 (PULSE) Display Out R83 (T1) R72/VAREF Display In, Key Out Comp R82 (INT1/ZIN) R40 (AIN0)
  • Page 27 (3) U2(TD62004AP) DARLINGTON ARRAYS IN1 1 16 OUT 1 KID65004AP IN2 2 15 OUT 2 IN3 3 14 OUT 3 10.5K IN4 4 13 OUT 4 IN5 5 12 OUT 5 7.2K IN6 6 11 OUT 6 IN7 7 10 OUT 7 GND 8 9 COMMON FREE WHEELING DIODES...

  • Page 28: Disassembly Instructions

    9. DISASSEMBLY INSTRUCTIONS Please refer to the chapter 10 (Exploded diagram and parts list). Before service of 1. Stop the unit, remove the power cord from the receptacles. any part. 2. Move the unit to the safe location for the suitable work. Ass’y Fan Motor 1.

  • Page 29: How To Remove The Front Grille

    • HOW TO REMOVE THE FRONT GRILLE 1. Open the inlet grille downward by pulling out the both side of the inlet grille. 2. Remove screw which fasten Front Grille with screw drivers. 3. Disassemble Front Grille from Chassis. – Front Grille and chassis are fixed with snap-fit. 1) Release right-lower snap-fit.

  • Page 30: Exploded Diagram And Parts List

    10. EXPLODED DIAGRAM AND PARTS LIST DWC-064R, DWC-084R PARTS LIST  Caution: In this Service 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 refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)
  • Page 31 DWC - **** CODE COMPONENTS Q'TY SPECIFICATION REMARK 3106000400 NUT HEX(L) M6(LEFT SCREW) 3100700600 BUSHING GUIDE NBR(HS 60° ±5°) 3103800400 LOCK TWIST STANDOFF DASTL-3NA 3100700900 BUSHING HOUSING NBR(HS 60° ±5°) 3110504200 BOX CONTROL SGCC T0.8X332X270P REGULLAR-SP 3114302160 FRONT PCB TT3 TRS SE 4X8 MFZN(C/CAPACITOR) 3114203500 PANEL CONTROL ABS(5VB), HFA-451...
  • Page 32 DWC - **** CODE COMPONENTS Q'TY SPECIFICATION REMARK 3112200400 FRAME GRILLE HIPS(HI-450) 3108508100 SEAL FRONT SIDE F-US(80X40XT30) 3108507900 SEAL FRONT UPPER F-US(600X40XT15) 3108508000 SEAL FRONT LOW F-US(420X45XT10) 3106502400 BLADE VERTICAL 7112400811 SCREW TAPPING T1 TRS 4X8 MFZN 3112002000 GRILLE HIPS(HI-450) 3111901800 FILTER PRE HIPS+MESH#32...
  • Page 33 DWC-064R EXPLODED DIAGRAM...
  • Page 35 DWC-084R EXPLODED DIAGRAM...
  • Page 37 DAEWOO ELECTRONICS CO., LTD. 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: “DAEWOOELEC” FAX: 02) 590-6291 TEL: 02) 360-7114/590-6151~5 http://www.dwe. daewoo.co.kr S/M NO.: DWC064R010 PRINTED DATE: FEB.2002...

  • Page 38: Service Manual

    : 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 refer to PPL(Parts Price List) in Service Information Center (http://svc.dwe.co.kr). DAEWOO ELECTRONICS CO., LTD.

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Dwc-064r

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