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Sharp FU-40SE-TA Service Manual
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Sharp FU-40SE-TA Service Manual

Sharp FU-40SE-TA Service Manual

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Tabletop / wall-mounting type
SAFETY PRECAUTIONS .................................................................................................................................. 2
FOR EFFECTIVELY USING THIS PRODUCT .................................................................................................. 4
SPECIFICATIONS ............................................................................................................................................. 4
NAMES OF PARTS .......................................................................................................................................... 5
INSTALLATION ................................................................................................................................................. 6
OPERATION ...................................................................................................................................................... 8
WIRING DIAGRAM ......................................................................................................................................... 10
TROUBLESHOOTING GUIDE ........................................................................................................................ 20
REPLACEMENT OF MAIN PARTS ................................................................................................................. 22
CARE AND MAINTENANCE .......................................................................................................................... 25
USE RESIN TABLE ......................................................................................................................................... 26
PARTS LIST .................................................................................................................................................... 26
SERVICE MANUAL
MODEL
In the interests of user-safety (Required by safety regulations in some
countries) the set should be restored to its original condition and only
parts identical to those specified should be used.

TABLE OF CONTENTS

SHARP CORPORATION
AIR PURIFIER
FU-40SE-TA
FU-40SE-TA
S4318FU40SETA
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Summary of Contents for Sharp FU-40SE-TA

  • Page 1: Table Of Contents

    FU-40SE-TA SERVICE MANUAL S4318FU40SETA AIR PURIFIER FU-40SE-TA MODEL In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used. Tabletop / wall-mounting type...

  • Page 2: Safety Precautions

    Fire, electrical shock and/or bodily injury may occur as a result. For repair, contact your dealer of purchase or the nearest Sharp Service Center. • Periodically remove dust from the power plug Accumulated dust on the power plug may cause bad insulation from humidity, etc.

  • Page 3: About The Filter

    FU-40SE-TA CAUTIONS CONCERNING THE USAGE OF THIS PRODUCT • Do not block the intake and exhaust ports. • Do not use the unit near or on hot objects, such as a stove, etc. Also, do not use the unit where it may come into contact with steam.

  • Page 4: For Effectively Using This Product

    FU-40SE-TA FOR EFFECTIVELY USING THIS PRODUCT How the air purifier works The air purifier uses the internal fan to intake the air in the room through the intake port and discharges the air through the exhaust port after cleaning the air is passed through the internal filters (deodorization filter (stamina-power carbon) and dust collection filter (HEPA filter).

  • Page 5: Names Of Parts

    FU-40SE-TA NAMES OF PARTS...

  • Page 6: Installation

    FU-40SE-TA INSTALLATION WHEN USING THE UNIT ON A WHEN USING THE UNIT WITH TABLETOP A MOUNTED WALL MOUNTING THE STAND CAUTION Remove the front panel. • When mounting the air purifier to the wall, the • At this time, also remove the pre-filter, mounted wall will become dirty as time passes.

  • Page 7: Main Unit

    FU-40SE-TA Mount mounting bracket 1 Place the 2 cushions • Install it after you ask a specialist and you can get the confirmation of the strength. • Mount the bracket using the included wood screws (long screws) so that it level.

  • Page 8: Operation

    FU-40SE-TA OPERATION For the first 30 seconds after the power plug is inserted TION into the wall outlet, the unit will check the conditions of the air. If operation is set to ON during this time, the Clean sign lamp will alternately flash in green, orange and red.

  • Page 9: Remote Control Operation

    FU-40SE-TA Operations available with remote control • Fan level manual opera- tion • Fan level AUTO operation • Silent operation REMOTE CONTROL • Max operation • Tobacco smoke mode OPERATION operation • Pollen mode operation • OFF timer setting • To start operation, press the ON/OFF button.

  • Page 10: Wiring Diagram

    FU-40SE-TA WIRING DIAGRAM WH-B SWITCH PWB ASS'Y CN-G CONTROL PWB ASS'Y CN-F CN-H CN-E RELAY PWB ASS'Y SENSOR HARNESS (FW-VZA024KKEZ) HIGH VOLTAGE HARNESS DUST SENSOR WH-C CN-J (FW-VZA027KKEZ) (CKITTA001KKEZ) MOTOR HARNESS (FW-VZA031KKEZ) HIGH VOLTAGE UNIT (CKITTA006KKKZ) WH-A CN-C CN-D MOTOR...
  • Page 11 FU-40SE-TA Control circuit diagram...
  • Page 12 FU-40SE-TA Circuit diagram BLOCK DIAGRAM Noise prevention Power supply Power supply LED drive circuit circuit clock generation circuit circuit Fan motor Reset circuit Clock circuit Key input drive circuit circuit High voltage Remote control LSI 1(Microcomputer) unit drive circuit signal recieve...
  • Page 13 FU-40SE-TA 5) Clock circuit This generates the clock signal required for operation of the microcomputer LSI-1. Its frequency is 4MHz which is supplied from the ceramic oscillator CF1. 6) Key input circuit The key SW1 on the switch PWB K is connected to the resistor R101.
  • Page 14 FU-40SE-TA 10) Odour sensor circuit The pulse signal, which is the odour sensor drive signal, is output from the pin 37 of the microcomputer LSI1, and the odour sensor is pulse-driven on the circuit of Q71, Q72, R73, R74, R76, and C73.
  • Page 15 FU-40SE-TA 13) High-voltage unit drive circuit The high-voltage unit is the power supply unit that supplies the high voltage to generate ion from the cluster electrode, and it can be activated by inputting AC100V into it. When the solid state relay SSR1 is turned on, the voltage for commercial power supply drops in the resistors R125 and R126 and approximately AC100V is applied to the high-voltage unit.
  • Page 16 FU-40SE-TA 4. Special modes Some of them are not used during servicing, and are described for reference only. (1) Test mode This is to test malfunctions of circuits and used to check them in mass production process. Setting procedure: Turn the power on while holding down the ON Operation selector/OFF TIMER button, and press the "...
  • Page 17 FU-40SE-TA Measurement of power consumption While in the test mode, the power consumption is measured. It is stopped and finished by pressing the Operation ON/OFF button. Error table Item Error display/status Cause Solution No. 1 Clean sign is flashing. EEPROM communication Replace the circuit PWB.
  • Page 18 FU-40SE-TA 6) Switch operation ......(a) On the main unit: All disabled......(b) On the remote control: All disabled. 7) Abnormal mode detection ..... (a) Enabled. When the abnormal mode is activated, it can be canceled with the ......
  • Page 19 FU-40SE-TA Control circuit diagram...

  • Page 20: Troubleshooting Guide

    FU-40SE-TA TROUBLESHOOTING GUIDE Always use the specified parts as shown page 26, 27 when replacing them. Service of the PWB ass'y The electrical circuit is composed of the Display PWB, Switch PWB ass'y, Relay PWB ass'y and the Power supply PWB ass'y.
  • Page 21 FU-40SE-TA Trouble Possible cause and symptom Solution The clean sign is not Dust is accumulated inside the dust sensor. Vacuum it off. displayed properly. The suction opening is clogged. Clean the openings of the dust and the odour sensor. The dust sensor is defective.

  • Page 22: Replacement Of Main Parts

    FU-40SE-TA REPLACEMENT OF MAIN PARTS Drive each screw into the original position when assembling the unit after servicing. Screws are respectively used according to their headÉÜs shape, thread diameter and length. Check that the lead wires are not pinched and the connectors are properly inserted.
  • Page 23 FU-40SE-TA Unscrew the switch PWB support to remove it. 3. Removing the display PWB, the dust sensor and the switch PWB Switch PWB harness CAUTION: Switch PWB guide LED support can not be removed from display PWB (Because there is LED of Cluster ion lamp.)
  • Page 24 FU-40SE-TA 6. Removing the motor 8. Removing the motor thermal fuse (1) Loosen the screws (3 pcs.) fixing the motor angle (1) Remove the motor from the casing and then the to remove it. thermal fuse ass’y from the groove of the casing.

  • Page 25: Care And Maintenance

    FU-40SE-TA CARE AND MAINTENANCE (To maintain the best performance of this product, please clean the unit periodically.) When cleaning, be sure to remove the power plug from the wall outlet. In addition, never handle the power plug with wet hands.

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