Samsung AS-1808BR Service Manual Download Page 29 | Manualshive

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ELECTRONICS

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Summary of Contents for AS-1808BR

Page 1: ...ITIONER 1 Installation 2 Disassembly and Reassembly 3 Troubleshooting 4 Exploded Views and Parts List 5 Refrigerating Cycle Block Diagrams 6 Wiring Diagrams 7 Schematic Diagrams ROOM AIR CONDITIONER AS 1808BR AS 2408BR E DB68 30986A 2 ...

Page 2: ...pressure side Standard pressure is should be 57 71 psi in a reqular high operation mode 2 Turn the 3 way valve clockwise to close connect the pressure gauge low pressure side to the service valve and open the 3 way valve again 6 Open the coolant tank and fill with coolant until the rated pressure is reached It is recommended not to pour the coolant in too quickely but gradually while operating a p...

Page 3: ...edure Refer to the details of pump down 2 Remove the power cord 3 Disconnect the assembly cable from the indoor and outdoor units 4 Remove the flare nut connecting the indoor unit and the pipe At this time cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign materal entering 5 Disconnect the pipe connected to the outdoor unit At this time cover the valve ...

Page 4: ...l upper 3 Contract the second finger to the left and right handle and pull to open the inlet grille 4 Take the left and right filter out 5 Loosen one of the right fixing screw and seperate the terminal cover 6 Open the cover screw and loosen three fix ing screws of front grille 7 Pull the upper left and right of discharge softly for the outside cover to be pulled out 8 Pull softly the lower part o...

Page 5: ...lder Filter and Separate the Holder Filter 1 Do 1 2 above Separate the holder at the rear side of Indoor unit 2 Take the display PCB out Center of indoor unit 3 Loosen three fixing screws of left and right 4 Pull tray drain out from the back body 1 Do 1 2 3 above 2 Take all the connector of PCB 2 piece upper side out ...

Page 6: ...t exchanger 1 Do 1 2 3 4 5 above 2 Loosen the fixing two screws and separate the motor holder 3 Loosen the fixing screw of motor fan By use of M3 wrench Separate the motor from the fan Separate the fan motor the left holder bearing Lifting the heat exchanger up a little to push the up side for separation from the indoor unit ...

Page 7: ... top cover 3 Remove the control box cover 4 Unplug the ass y cable 5 Remove the cabi side 6 Remove the cabi front When you assemble the parts check if the each parts and electric connectors are fixed firmly 1 Do Procedure 1 above 2 Remove the nut flange Turn to the right to remove as it is a left turned screw 3 Disassemble the propeller fan ...

Page 8: ...s intermittently in a COOL mode or DRY mode and fan speed of the indoor unit decreases It indicates power is on The LED stops blinking if the operation ON OFF button on the remote control unit is pushed In happens after a delay of 3 minutes when the compressor is reoperated The same phenomenon occurs when a power is on As a phenomenon that the compressor is reoperated after a delay of 3 minutes th...

Page 9: ...power cord and plug in again in approx 5 seconds Is operating lamp lights on for three minutes and then goes off Check whether the fuse is normal F701 Check whether the output voltage of the trans is normal AC 15V 3V Check whether the DC 12V is normal DC12 0 5V between G and O of the IC01 Check whether the DC 5V is normal DC 5V 0 5V between G and O of the IC02 Check whether the display PCB is norm...

Page 10: ...ing lamp lights on for three minutes and then goes off Check whether the indoor fan turns with the operation lamp being turned on when the start stop button of the remote control is pressed Is a voltage of above AC 240 300V applied to both ends of theindoor fan connector CN73 Is pin 3 of the CN43 a square wave Replace the indoor fan motor or fan motor capacitor Replace the Q401 KSC945Y Replace the...

Page 11: ...prox 5 seconds Is operating lamp lights on for three minutes and then goes off Check whether the compressor is activated in three minutes after the operation lamp comes on when you press the ON OFF button of the remote control Is the wave of the micom IC04 pin 62 high Is the wave of the IC06 pin 14 low Is the AC240V voltage between the skyblue wire and Brown wire of the CN78 Replace the compressor...

Page 12: ...move power cord and plug in again in approx 5 seconds Is operating lamp blinking in 3 minutes and then lamp off Does operation start when swing button of the remote control unit pushed Voltage at pin 33 36 of micom IC04 change Squarewave Volatge at pin 10 13 of IC05 KID65003AP change Squarewave UP DOWN louver motor is faulty Check as in the procedure No Power parts Refer to page 8 Normal Micom IC0...

Page 13: ...fer to page 8 Normal Replace battery LCD is faulty Replace button Q601 KSH29 C4375 or Q602 2SC1623 is faulty LE61 LE62 CL 1L5E is faulty Receiver module GP1U271R is faulty Beep sound heard from the indoor unit when ON OFF button on the remote control unit pushed Voltage of battery less than 2 5V Remote Control Unit LCD display status of REMOCON normal Voltage at collecter of Q601 or Q602 change Re...

Page 14: ...13 MEMO ...

Page 15: ...14 4 Exploded Views and Parts List 4 1 Indoor Unit 4 8 9 6 5 1 5 5 2 5 3 1 1 1 1 3 1 2 2 3 2 3 2 2 2 4 2 1 2 4 7 16 18 17 19 12 13 14 15 15 1 15 2 10 11 ...

Page 16: ...L FRONT ASS Y GRILLE SUPPORT ASS Y SUPPORT RH COVER SCREW M COVER SCREW LF COVER TERMINAL GUARD FILTER AIR ASS Y TRAY DRAIN MOTOR STEPPING BLADE H UPP BLADE H LOW ASS Y PCB SUB HOLDER E FILTER ASS Y MAIN PCB ASS Y MAIN PCB CASE CONTROL HOLDER MOTOR BRACKET ML CONNECTOR ASS Y EVAP ASS Y EVAP MOTOR FAN IN ASS Y FAN CROSS ASS Y BEARING RUBBER BEARING BEARING ASS Y BACK BODY BODY BUSH HOLDER PIPE PLAT...

Page 17: ...16 1 4 10 12 17 23 5 6 2 3 7 9 8 21 22 20 11 1 11 3 11 2 13 18 14 16 15 14 1 14 2 14 3 14 4 14 5 11 4 11 1 11 11 5 11 6 11 3 11 2 24 1 21 1 24 24 2 4 2 Outdoor Unit ...

Page 18: ...ALVE SERVICE VALVE SERVICE GUARD COND ASS Y CONTROL OUT CASE CONTROL CLIP CAPACITOR C OIL SWITCH MAGNETIC CAPACITOR DUAL TERMINAL BLOCK SPARK KIUER FUSE PARTITION PARTITION COVER TOP ASS Y COMP ASS Y COMP GROMMET ISOLATOR NUT WASHER NUT FLANGE COVER TERMINAL OLP OLP TUBE DISCHARGE TUBE DISCHARGE CLOTH BASE CLOTH SOUND CLOTH SOUND CLOTH SOUND UPP CLOTH SOUND UPP ASS Y SUCTION TUBE ASS Y SUCTION TUB...

Page 19: ...08A DB64 40068C DB61 40009A DB63 10081A Description Ass y remocon Case remocon LOW Rubber button B IC MCU LCD Rubber button A Case remocon UPP Door remocon Window remocon Filter remocon Inlay remocon Holder remocon Cover battery Specification AS 1808BR ABS NBR EOC621AF E 30304 NBR ABS ABS PC PC ABS ABS ABS Q TY AS 1808BR AS 2408BR 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Remark 6 5 2 5 ...

Page 20: ... DB93 10430A DB39 20244A DB59 10012A DB39 20188B DB61 10122B Description CONNECTOR WIRE OUT ASS Y MAIN PCB TRANS POWER THERMISTOR ASS Y ASS Y PCB SUB C W DISPLAY MODULE MODULE REMOCON CONNECTOR WIRE POWER CASE CONTROL Specification AWG 16 AS 2408BR AC230V DC17V 103AT ASS Y AWG 26 GP1U271R AWM1007 ABS Q TY 1 1 1 1 1 1 1 1 1 Remark Parts List ...

Page 21: ...44A DB59 10012A DB39 20188B DB61 10122B DB39 10080B Description CONNECTOR WIRE OUT ASS Y MAIN PCB TRANS POWER THERMISTOR ASS Y ASS Y PCB SUB C W DISPLAY MODULE MODULE REMOCON CONNECTOR wire POWER CASE CONTROL POWER CORD IN Specification AWG 16 AS 1808BR AC230V DC17V 103AT ASS Y AWG 26 GP1U271R AWM1007 PP AWG16 Q TY 1 1 1 1 1 1 1 1 1 1 Remark Parts List ...

Page 22: ...TUBE CAPI ASS Y C1220T 0 OD9 5 DB62 40039B VALVE SERVICE C3771BE 72LT HR DB62 40074C VALVE SERVICE C3771BD 600L H 1 DB63 10011A COVER TOP ACRYL SC90073R DB63 10165D COVER TERMINAL PBT 2 5 GRAY DB63 10403C COVER TERMINAL ABS T2 IVORY SC DB63 10404E COVER SCREW MID HIPS T2 SC 974 DB63 10404F COVER SCREW L R HIPS T2 SC 974 DB63 30025D GUARD COND SC 90073T DB63 30128A GUARD FILTER AIR PP T2 BLK AS DB6...

Page 23: ...H HIRS T2 SC 97472R AS DB62 31772A TUBE DISCHARGE C122OT O OD9 52 DB62 40039B VALVE SERVICE C3771BE 72LT HR DB62 40055F VALVE SERVICE 5 8 AP 73 DB63 10011A COVER TOP ACRYL SC90073R DB63 10165D COVER TERMINAL PBT 2 5 GRAY DB63 10403C COVER TERMINAL ABS T2 IVORY SC DB63 10404E COVER SCREW MID HIPS T2 SC 974 DB63 10404F COVER SCREW L R HIPS T2 SC 974 DB63 30025D GUARD COND SC 90073T DB63 30128A GUARD...

Page 24: ...hanger Condenser Propeller fan Compressor T1 T2 Refrigerating cycle temperature and pressure Operating Condition STD Pressure psi 3 WAY V V Piping Temp F Use Temp Condition F T1 T2 Indoor Outdoor DB 80 80 67 50 54 61 64 34 39 64 78 Cooling Standard Max over load Low temp 50 54 61 64 34 39 67 67 57 95 115 67 75 75 57 WB WB DB 5 Refrigerating Cycle Block Diagram ...

Page 25: ...22 6 Wiring Diagrams 6 1 Indoor Unit AS 2408BR AS 1808BR ...

Page 26: ... CAPACITOR 40uF 2 5uF x 450VAC 6 2 1 AS 1808BR 6 2 2 AS 2408BR MODEL MOTOR COMP CAPACITOR AS 2408BR 2 5 40uF X 450VAC NAME TB1 2 TERMINAL BLOCK FM FAN MOTOR 52C MAGNETIC CONTACTOR CP CAPACTOR F FUSE 2A 250V S SPARK KILLER ...

Page 27: ...24 7 Schematic Diagrams 7 1 Indoor Unit ...

Page 28: ...25 ...

Page 29: ...ELECTRONICS ...

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