Samsung AS070VE Service Manual Download Page 51

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Samsung Electronics

7-1

7. Block Diagrams

7-1 Micro Computer Block Diagram

HEAT EXCHANGER SENSOR

INFRARED SIGNAL

•BLADE-H CONTROL

•INDOOR FAN MOTOR
CONTROL

•COMPRESSOR
CONTROL

• TEMPERATURE

CONTROL

• TIMER

•BUZZER CONTROL

INDOOR FAN MOTOR

SPEED DETECT

ZERO CROSSING

POWER ON/OFF

MODE

(AUTO, COOL, DRY,

FAN

TURBO

FAN SPEED SELECT

BLADE-H

MOVING SELECT

ON, OFF TIMER SELECT

TEMPERATURE SELECT

SLEEP SELECT

TIME SETTING

COMPRESSOR CONTROL
SIGNAL

STEPPING MOTOR
CONTROL SIGNAL

BUZZER CONTROL
SIGNAL

TRIGER

SIGNAL

SSR

OSCILLATION
CIRCUIT

MODE SELECT
SWITCH

INDICATOR PANNEL

OPERATION LED

TIMER LED

FAN ONLY LED

INDOOR FAN MOTOR

INDOOR CONTROL PANEL

POWER TRANSFORMER

AC INPUT

DR : 200-220V/50Hz
ER : 220-240V/50HZ

REMOTE CONTROLLER

•

STEPPING MOTOR

COMPRESSOR DRIVE

STEPPING MOTOR
DRIVE

BUZZER DRIVE

COMPRESSOR

BUZZER

•

VOLTAGE REGULATOR

DC 5V

DC 12V

RESET
CIRCUIT

ROOM TEMPERATURE SENSOR

Summary of Contents for AS070VE

Page 1: ...Block Diagrams 8 PCB Diagrams 9 Wiring Diagrams 10 Schematic Diagrams ROOM AIR CONDITIONER INDOOR UNIT AS070VE DOK AS071VE DOK AS074VE DOK AS075VE DOK AS090VE DOK AS091VE DOK AS094VE DOK AS095VE DOK AS120VE DOK AS121VE DOK AS124VE DOK AS125VE DOK OUTDOOR UNIT AX070VE DOK AX071VE DOK AX074VE DOK AX075VE DOK AX090VE DOK AX091VE DOK AX094VE DOK AX095VE DOK AX120VE DOK AX121VE DOK AX124VE DOK AX125VE ...

Page 2: ... Samsung Electronics Co Ltd JAN 1998 Printed in Korea Code No DB81 10123A 1 ...

Page 3: ...ng into a power cord This practice may result in malfunction or fire 6 After completing repairs and reassembly check the insulation resistance Procedure Prior to applying power measure the resis tance between the power cord and the ground terminal The resistance must be greater than 30 megohms 7 Make sure that the grounds are adequate 8 Make sure that the installation conditions are satisfactory R...

Page 4: ...1 2 Samsung Electronics MEMO ...

Page 5: ... CAPILLARY TUBE 280 690 MST24AMM 12008 AS090VE AS091VE AS094VE AS095VE Indoor unit Outdoor unit Wall mounting 9000 1 6 6 1 35 45 10 2 1 220 240 50 880 4 0 91 7 22 0 2 250V 10 16A 3 15 815x298x182 720x525x245 32 08x11 73x7 17 28 35x20 67x9 65 9 6 28 ø6 35 x 5 ø9 52 x 5 ø17 x 2000 Rotary 895 Cross fan Propeller Resin Steel 35 15 2Row 12Step 1Row 20Step CAPILLARY TUBE 360 800 MRA12037 12007 AS090VD A...

Page 6: ...2 2 Samsung Electronics 2 2 Dimensions 2 2 1 Indoor Unit 2 2 1 Outdoor Unit Air in Front view Remote control Rear view Front view Rear view Air out Installation plate ...

Page 7: ...urrent Data Indoor Unit AS070VE AS071VE AS074VE AS075VE Outdoor Unit AX070VE AX071VE AX074VE AX075VE 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 14 13 12 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 ...

Page 8: ...070VD AS071VD AS074VD AS075VD Outdoor Unit AX070VD AX071VD AX074VD AX075VD 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 14 13 12 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 Product Specifications ...

Page 9: ...ctronics Indoor Unit AS090VE AS091VE AS094VE AS095VE Outdoor Unit AX090VD AX091VE AX094VD AX095VE 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 14 13 12 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 ...

Page 10: ...ctronics Indoor Unit AS090VD AS091VD AS094VD AS095VD Outdoor Unit AX090VD AX091VD AX094VD AX095VD 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 14 13 12 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 ...

Page 11: ...ctronics Indoor Unit AS120VE AS121VE AS124VE AS125VE Outdoor Unit AX120VE AX121VE AX124VE AX125VE 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 14 13 12 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 ...

Page 12: ...ctronics Indoor Unit AS120VD AS121VD AS124VD AS125VD Outdoor Unit AX120VD AX121VD AX124VD AX125VD 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 14 13 12 11 10 9 8 7 6 5 4 3 25 Outdoor Inlet air D B temp C 30 40 35 45 50 ...

Page 13: ...ics 2 4 Refrigerating Cycle Block Diagram INDOOR UNIT OUTDOOR UNIT Heat exchanger Evaporator Gas side 3 way valve 2 way valve Liquid side Capillary tube Gas leak check point Heat exchanger Condenser Compressor T T Cooling ...

Page 14: ...2 10 Samsung Electronics MEMO ...

Page 15: ...utton to reserve the timer on Set up the time that operation stop Set up the time that operation start Each time you press this button FAN SPEED is changed in the following order Adjusts air flow vertically Each time you press this button BLADE H rotates by 10 58 Changable range 42 3 Use this button for sleep operation The SLEEP mode can be selected at COOL and HEAT mode Set up the reserve or canc...

Page 16: ...ditioner is operated powerful state for 30 minutes regardless of the set tempera ture room temperature When this button is pressed again or when the operating time is 30 minutes turbo operation mode is canceled and returned to the previous mode But if you press the TURBO button in DRY or FAN mode that is changed with AUTO mode automatically 5 SLEEP MODE Sleep mode is available only in COOL mode Th...

Page 17: ...LCD displays the polling state sequentially The LCD also displays the time remaining 11 24 Hour ON OFF Real Setting Timer The air conditioner is turned ON at a specified time using OFF TIMER The air Conditioner is turned OFF at a specified time using ON TIMER Only timer LED lights on OFF TIMER Both timer and operation LED lights on 3 minutes delay timer 14 SELF Diagnosis 15 TIME SHORTENING If the ...

Page 18: ... in a high place 3 Make sure that you install the outdoor unit in area providing good ventilation and which is not dusty It must not be blocked by any obstacle affecting the airflow near the air inlet and the air outlet 4 Make sure that you install the outdoor unit in area free from animals or plants 5 Make sure that you install the outdoor unit in area not blocking the traffic 6 Make sure that yo...

Page 19: ...rain hose installation Cut the piping hole sloped slightly Piping Liquid 1 4 Clamper tube Installation plate Installation tube Pipe connection Vinyl tape Screw Putty Drain hose Piping may be laid to the rear left right or down Right Rear Down 250mm ormore 200mmormore Rear Left 3 2 5 6 4 10 1 2 3 4 5 6 7 8 9 10 1 Remote control Remote control holder 7K 9K BTU Piping Gas 3 8 12K BTU Piping Gas 1 2 ...

Page 20: ...chor bolts the anchor bolts must not project by more than 20mm 4 Determine the positions of the wooden uprights to be attached to the window frame 5 Attach the wooden uprights to the window frame in a manner appropriate to the weight of the indoor unit 6 Using tapped screws attach the installation plate to the wooden uprights as illustrated in the last figure oppo site On delivery the indoor unit ...

Page 21: ...e than five metres away from the indoor unit the cable must first be extended to a maximum of ten metres 1 Extend the assembly cable if necessary 2 Open the front grille by pulling on the tabs on the lower right and left sides of the indoor unit 3 Remove the screw securing the connector cover 4 Pass the assembly cable through the rear of the indoor unit and connect the assembly cable to terminals ...

Page 22: ...the cable connector in the terminal block 3 Fasten the M4 ring terminal to the hole marked 4 Firmly fix the ass y cable with clamp wire holder 5 Assemble the cover E parts 6 To prevent the entry of water form a trap of the ass y cable as illustrated in the installation dia gram of indoor and outdoor unit Wiring connection Cover E parts Screw ...

Page 23: ...ng a pipe cutter Tools used 2 Remove burrs at the tip of the pipe cut Caution Burrs not removed may result in leakage of gas 3 Insert a flare nut into the pipe and modifty flare Unproper flaring Outer diameter A mm ø6 35mm 1 3 ø9 52mm 1 8 ø12 7mm 2 0 Oblique Raughness Burr Pipe Reamer Inclined Surface damaged Cracked Uneven thickness D A ...

Page 24: ...e the cap of each valve 8 Check each valve for leakage 5 Open the service valve cap of the 3 way valve and press the needle valve to discharge gas for 3 seconds and leave it for about 1 minute Repeat the above procedure for 3 times to purge air Leaking If leaking tighten the flare nut one more time If continues to leak although the pipe fixing area has been tightened again repair the leaking area ...

Page 25: ...side to the service valve and open the 3 way valve again 5 Check the pressure indicated by the pressure gauge low pressure side Standard pressure is should be 4 5 5 5kg cm2 in a reqular high operation mode 6 Open the refrigerant tank and fill with refrig erant until the rated pressure is reached It is recommended not to pour the refrigerant in too quickly but gradually while operating a pressure v...

Page 26: ...e ø 12 7 12000Btu Gas Side 160 300 500 200 350 550 Fixing Torque Final Torque Torque kg cm Connection Pipe Length 5m Max 5 10m Air Purge Method Refer to the detailed Air Purge Procedure Refrigerant Adjustment Unnecessary Add 10g of refrigerant R 22 for every 1m Air Purge Method Purge air using a vaccum pump or an additional refrigerant cylinder Refrigerant Quantity refer to specification sheet Add...

Page 27: ...elocation of the air conditioner Refer to this procedure when the unit is relocated 1 Carry out the pump down procedure 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 t...

Page 28: ...3 14 Samsung Electronics MEMO ...

Page 29: ...ond 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 Loosen two fixing 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 of discharge and push it up Caution Assemble the front ...

Page 30: ... 1 Do 1 2 above 2 Take all the connector of PCB upper side out Inclusion Power cord 3 Separate the outdoor unit connection wire from the terminal block 4 If pulling the Main PCB up it will be taken out Separate the TRANS hook it before 1 Do 1 and 2 3 above 2 Loosen two fixing earth screws of right side 3 Separate the connection pipe 4 Separate the bush body at the upper side and holder at the rear...

Page 31: ...edure Remark 3 Fan Motor and Cross Fan 1 Do 1 2 3 4 above 2 Loosen the fixing three screws and separate the motor holder 3 Loosen the fixing screw of fan motor By use of M3 wrench 4 Separate the fan motor from the fan 5 Separate the fan from the left holder bearing ...

Page 32: ...eparate the connection wire from the termi nal block 3 Loosen three fixing screws and separate the upper cabinet 4 Loosen the two fixing screws of Ass y E part 5 Loosen seven fixing screws and separate the side cabinet 1 Do 1 above 2 Loosen two fixing screw of the front cabinet 3 Push the brackets of the outer cover to sepa rate the protection mesh from the rear side of front cabinet ...

Page 33: ... the motor 1 Do 1 above 2 Loosen three fixing screws of left and right side 3 Disassemble the inlet and outlet pipe by welding 4 Separate the heat exchanger 1 Do 1 above 2 Open the terminal cover of compressor and unscrew the connection terminal 3 Disassemble the inlet and outlet pipe of com pressor by welding 4 Disassemble the inlet and outlet pipe of con denser by welding 5 Loosen the three bolt...

Page 34: ...4 6 Samsung Electronics MEMO ...

Page 35: ...essor stops operation intermittently in DRY mode 5 Timer LED only of the indoor unit lights up and the air conditioner does not operate 6 The compressor stops 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 wh...

Page 36: ...5VDC Is voltage of 63 indoor fan of the micom normal Is voltage at 32 terminal of the Micom normal 0VDC Is voltage at 64 terminal of the Micom normal 5VDC Is 198 264VAC applied to the primary side of the power transformer Check linkage between power cord and terminal tap Check fuse Is 14 18VAC appear in the secondary side of the power transformer Replace power transformer YES NO YES NO YES YES YES...

Page 37: ...shooting After unplugging out the power cord should be reconnected within five seconds Does the operating lamp Green blink Does the Solid State Relay SS71 work properly Is the supply voltage of the fan motor sufficient Test rod location PCB CN73 Condition Fan operate AC 180V Normal voltage YES YES YES NO NO NO Check as in the procedur NO power parts Refer tp page 5 2 Microcomputer is out of order ...

Page 38: ...ord should be reconnected within five seconds Does the operating lamp blink YES YES NO NO NO 1 YES 3 2 NO YES 1 NO 2 NO Outdoor unit is out of order Power relay is out of order Power relay should be replaced PCB should be checked Microcomputer is out of order PCB should be checked Room temperature sensor is out of order Check as in the procedure No Power parts Refer to page 5 2 YES 3 Is the room s...

Page 39: ...s operation start when swing button of the remote control unit pushed Voltage at pin 33 36 of micom ICO4 change Squarewave Volatge at pin 10 11 12 13 of IC05 KID65003 change Squarewave UP DOWN louver motor is faulty Driver IC05 KID65003 is faulty Micom IC04 is faulty Normal Check as in the procedure No Power parts Refer to page 5 2 After training on the heating operation should start in five minut...

Page 40: ...lty Receiver module is faulty Q601 C4375Y or Q602 C1623Y is faulty IR LED CL 1L5EU is faulty 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 PIN 30 of Remocon Micom change Voltage at collecter of Q601 or Q602 change Voltage at pin 26 of micom IC04 change INDOO...

Page 41: ...n its substrate So if a circuit board is roughly handled such lead wires and parts will be easily broken or damaged by bending or shock 5 When soldering the lead wires of any new part be sure to polish them using an emery paper or the like before solding them Since the lead wires of any new part are covered with an oxide film solder cannot adhere to the lead wires if not polished 6 When soldering ...

Page 42: ...14 18Vac 3 DC voltage at OUT and GND of IC01 KA7812 12VDC 4 DC voltage at OUT and GND of IC02 5VDC 5 DC voltage at Q201 Base and GND change squarewave Voltage check 1 Voltage of relay RY71 coil Voltage at pin 10 pin 7 of IC07 12VDC 2 Voltage at Terminal Tap TB71 or 72 and RY71 Terminal N0 4 198 264V 1 Compressor does not operate 1 Voltage at 3 5 both ends of CN73 above 180V 2 Indoor unit fan motor...

Page 43: ...l At ambient temperature 10 C 30 C Abnormal Measure the voltage between ground and signal wire of the fan motor Normal Abnormal Abnormal if voltage does not change from 0V to 5V Normal At ambient temperature 10 C 30 C Abnormal O Ω open or short Measure resistance between red wire and each terminal Normal Approx 380Ω at ambient temperature 20 C 30 C Abnormal O Ω open or short between Resistance Red...

Page 44: ...Samsung Electronics 6 1 6 Exploded Views and Parts List 6 1 Indoor Unit ...

Page 45: ...CASE CONTROL BODY BUSH ASS Y BACK BODY HOLDER PIPE PLATE HANGER ABS ABS PC PC PP CLEANER CARBON HIPS ASS Y ASS Y ASS Y ASS Y PC PC ASS Y ASS Y ASS Y DC12V 600GR HIPS ASS Y ASS Y ASS Y PVC ASS Y AMPFS040WTVB Ø95 619 4mm ASS Y ASS Y ASS Y ASS Y ASS Y UCP2 ASS Y ABS HIPS ASS Y HIPS SGCC M 1 1 2 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 2 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 2 1...

Page 46: ...Samsung Electronics 6 3 6 2 Outdoor Unit 25 1 25 26 2 26 1 ...

Page 47: ...AL NUT FLANGE TUBE DISCHARGE TUBE SUCTION ASSY CAPI TUBE ASSY COND INSUL CABI SIDE ASSY CABI SIDE ASSY COVER E PARTS ASSY CABLE BAG ASSY FLARE NUT FLARE NUT ABS 2C SM20C M6 NTR AS G F Ø405 AMASS020WTVA AMASS015WTVA ASS Y ASS Y ASS Y ASS Y SECC P FOAM PE FOAM PU ASS Y ASS Y ASS Y ASS Y ASS Y ASS Y 0 9 30µF 450VAC 1 5 30µF 450VAC 1 5 25µF 450VAC 1 2 30µF 450VAC 1 7 30µF 450VAC 1 7 20µF 450VAC 4P ASS...

Page 48: ... DB67 60061A DB67 60062A DB67 60063A 90 x 250 DB93 40179B DB61 40243A Description ASS Y REMOCON CASE UP CASE LOW DOOR REMOCON COVER BATTERY FILTER REMOCON RUBBER REMOCON INLAY LCD INLAY REMOCON LABEL REMOCON LABEL DOOR SCREW TAP SPRING BATTERY SPRING BATTERY SPRING BATTERY PE BAG ASS Y PCB REMOCON HOLDER REMOCON Specification ABS ABS ABS ABS PC SILICON PC PC ART 90 ART 90 PH M2 SUS 304 SUS 304 SUS...

Page 49: ...A DB32 50021A Description CASE CONTROL Ass y main PCB Ass y main PCB Ass y main PCB Micom Thermistor EVAP Trans power C film Power relay Fuse Ass y display and Remocon Module Ass y display and Remocon Module Module remocon Specification MB89635R 466 103AT 240 240 AC230V DC17V 300mA CFS 99N 450VAC 155K DI1U DC12V 250V 3 15A TSOP1238UU1 Q TY 7000 9000 12000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

Page 50: ...6 7 Samsung Electronics MEMO ...

Page 51: ... SELECT ON OFF TIMER SELECT TEMPERATURE SELECT SLEEP SELECT TIME SETTING COMPRESSOR CONTROL SIGNAL STEPPING MOTOR CONTROL SIGNAL BUZZER CONTROL SIGNAL TRIGER SIGNAL SSR OSCILLATION CIRCUIT MODE SELECT SWITCH INDICATOR PANNEL OPERATION LED TIMER LED FAN ONLY LED INDOOR FAN MOTOR INDOOR CONTROL PANEL POWER TRANSFORMER AC INPUT DR 200 220V 50Hz ER 220 240V 50HZ REMOTE CONTROLLER STEPPING MOTOR COMPRE...

Page 52: ...Samsung Electronics 8 1 8 PCB Diagrams 8 1 a Main PCB 7000Btu DB93 10484A ...

Page 53: ...STOR BUZZER TRANS L V PIN EYELET C CERAMIC C CERAMIC C CERAMIC C ELEC C ELEC C ELEC C ELEC IC MCU IC RSONATOR CERAMIC IC DRIVE TR GENERAL TRANSISTOR TRANSISTOR SWITCH TACT CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTOR TERMINAL RELAY RELAY WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER W...

Page 54: ...Samsung Electronics 8 3 8 1 b Main PCB 9000Btu DB93 10486A 12000Btu DB93 10482A ...

Page 55: ...IC RSONATOR CERAMIC IC DRIVE TR GENERAL TRANSISTOR TRANSISTOR SWITCH TACT CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTOR TERMINAL RELAY RELAY WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER WIRE SO COPER W...

Page 56: ...601 001059 0601 001060 0601 001196 DB41 10200A DB41 10199A DB32 50021A DB39 20346A DB61 10143A DB61 10137A 2202 000780 2201 000283 0401 000005 2001 000034 Specification LTL 52EG 002 ORG GRN SY5511 YEL SM5511 GRN SO5511 ORG YWLA200 09P FR 1T1 6 W20L170 FR 1T1 6 W20L170 TSOP 1238UU1 AS074 075 094 095 124 125VE D AS070 071 090 091 120 121VE D DCR200H BROWN CA OA 50V 104Z CA OA 50V 102Z 1N4148 RD 1 4T...

Page 57: ...Samsung Electronics 9 1 9 Wiring Diagrams 9 1 Indoor Unit ...

Page 58: ...75VE 1 5 25µFX450VAC CAPACITOR AX070 071 074 075VD 1 7 20µF X450VAC CAPACITOR AX120 121 124 125VD 1 2 30µF X450VAC CAPACITOR AX120 121 124 125VE 0 9 30µF X450VAC Samsung Electronics 9 2 9 2 Outdoor Unit AX120 121 124 125VE AX070 071 074 075VE AX090 091 094 095VD AX120 121 124 125VD AX070 071 074 075VD AX090 091 094 095VE ...

Page 59: ...Samsung Electronics 9 3 MEMO ...

Page 60: ...Samsung Electronics 9 4 MEMO ...

Page 61: ...10 1 10 Schematic Diagrams 10 1 Indoor Unit Samsung Electronics ...

Page 62: ...Samsung Electronics 10 2 10 2 Remote Control ...

Page 63: ... may not in whole or in part be copied photocopied reproduced translated or converted to any electronic or machine readable from without prior written permission of Samsung Electronics Co Ltd SyncMaster 17GLi CMG7387L Service Manual First edition June 1995 Printed in Korea Trademarks Samsung is a registered trademark and SyncMaster 17GLi CMG7387L and MacMaster Cable Adapter are trademark of Samsun...

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