Mitsubishi Electric JT-SB116EH-W-CA Handbook Download Page 13 | Manualshive

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Bas voltage (Being stopped): DC169V
(JT-24M: TAB5)

Heater power supply (With heater ON): AC120V
(JT-24M: Between TAB3-TAB4)

Power supply voltage: AC120V
(JT-24M: Between TAB1-TAB2)

5V (JT-24M: CN6 1P)

0V (JT-24M: CN7 5P)

15V (JT-24M: CN7 1P)

8-2 Circuit board diagram and check points

(1) Main circuit board

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Summary of Contents for JT-SB116EH-W-CA

Page 1: ... SB116EH W CA FOR DEALERS Nameplate February 2007 No U132 Repair work should be performed by the manufacturer its service agent or similarly qualified person in order to avoid hazards Notice The term of validity is one year from the issued date ...

Page 2: ...ctions of components 6 7 5 Specifications 8 6 Outside dimensions 8 7 Electrical wiring diagram 9 8 Basic circuit diagram 10 16 9 Principles of operation 17 18 10 Troubleshooting 19 23 11 How to call 24 12 Service inspection list 24 13 Disassembly and assembly 25 33 14 Parts catalog 34 46 ...

Page 3: ... therefore wait for at least 1 minute before disas sembling the product Not turning off the power may cause electric shock Use proper parts and tools Use the parts listed in the service parts list of the sub ject model with appropriate tools when repairing Using improper parts and tools may cause electric shock fire and or injury Check insulation Upon completing repair work always measure the insu...

Page 4: ...e The hand dryer does not require a paper or cloth towel thus eliminating the dumping paper waste and the exchanging of towels Also the hand dryer is easy to clean 8 Highly safe with mischievous use prevention timer To prevent continuous operations of the hand dryer by mischievous use or malfunction it has a built in timer that automatically stops drying upon reaching a specific period of time OUp...

Page 5: ... hand dryer requires Thus it is extremely economical for use over an extended period of time 0 Hot jet air A regular heat accumulating type heater is provided in the standard specification It accumulates heat while the hand dryer is not used and releases accumulated heat when the hand dryer is operated Pleasant hot jet air starts to blow instantaneously anytime when drying hands A Hot air temperat...

Page 6: ... indicate antimicrobial material Drain tank Unit Heater Drain hose Hand drying area Check lamp Power lamp Display Emblem Heater lamp Black wall area Sensor Illumination lamp Sensor Air filter OFF ON O I I O O I I OFF ON Power Air speed Heater 4 Names and functions of components 4 1 Structure and appearance ...

Page 7: ...on or flashing turn off the power shut off the ground fault circuit interrupter and When not using the unit for long periods of time With the heater switch OFF When the heater switch is turned ON approx 1100 W of power is consumed to accumulate heat by operating the heater Turn the power switch off The unit consumes approximately 2W of power even if unused when the power is on With both hands open...

Page 8: ...rying 730 Rated Current A 9 2 During heat accumulation During hand drying 7 7 Weight kg 14 Drain Tank R Noise dB Terminal block location Terminal block location Heater switch Switch door Wind volume knob Power switch Drain tank Air filter Power cord hole On the back Mounting plate dimensions Unit mm 5 Specifications 6 Outside dimensions ...

Page 9: ... 9 JT SB116EH W CA 7 Electrical wiring diagram ...

Page 10: ...Hz JT 24M IC1 14P Carrier frequency 13 9kHz JT 24M IC1 3P Bas voltage Being stopped DC169V JT 24M TAB5 Heater power supply With heater ON AC120V JT 24M Between TAB3 TAB4 Power supply voltage AC120V JT 24M Between TAB1 TAB2 0V JT 24M CN7 5P 15V JT 24M CN7 1P 8 Basic circuit diagram 8 1 Circuit diagram and check points 1 Main circuit JT 24M ...

Page 11: ... 12 2 Sub circuit JT 24S ...

Page 12: ...ng signal waveform JT 24M CN7 2P JT 24S B CN14 2P Lower sensor s light emitting signal waveform JT 24M CN5 2P JT 24S C CN15 2P 100msec Rises when hands are inserted Does not appear when hands are inserted Influence of light emission by the lower sensor 100msec 100msec Room thermostat characteristics JT 24M CN4 2P Heater thermostat characteristics JT 24M CN9 2P FIN overheat detector characteristics...

Page 13: ...24M TAB5 Heater power supply With heater ON AC120V JT 24M Between TAB3 TAB4 Power supply voltage AC120V JT 24M Between TAB1 TAB2 5V JT 24M CN6 1P 0V JT 24M CN7 5P 15V JT 24M CN7 1P 8 2 Circuit board diagram and check points 1 Main circuit board ...

Page 14: ... the illumination lamp turns off 3 Wind volume circuit board 4 Lower sensor light receiving upper sensor circuit board 5 Lower sensor light emitting illumination circuit board 6 Indicator circuit board 2 Blue LED 2 Indicator circuit board ...

Page 15: ...Does not appear when hands are inserted Influence of light emission by the lower sensor 100msec 100msec Room thermostat characteristics JT 24M CN4 2P Heater thermostat characteristics JT 24M CN9 2P FIN overheat detector characteristics JT 24M IC1 8P Resistance CN4 2P Voltage Temperature 150 C 29 84kΩ 3 74V 200 C 8 00kΩ 2 22V 250 C 2 72kΩ 1 07V Resistance CN9 2P Voltage Temperature 25 C Less than 3...

Page 16: ...urred the error display persists till the voltage retained in the circuitry is discharged till the microcomputer is reset 2 Hand detection and operation 1 Hand detection sensor is an infrared sensor assembled with the light emitting sensor red LED light receiving sensor photo diode etc and consists of the upper this side sensor and the lower inner sensor 2 Reflection type upper sensor The sensor d...

Page 17: ... thermostat detection temperature is 35 C or higher 5 Extinguishing of the illumination lamp 1 If the jumper wire JA on the indicator circuit board JT 24S A is cut off the illumination lamp extinguishes 2 Before cutting off the jumper wire make sure to turn the power switch OFF and wait for 40 seconds minimum 6 Test mode Error display mode 1 Content Display the latest error occurred When no error ...

Page 18: ...N Slow flicker ON for 0 4 second OFF for 0 4 second O OFF Quick flicker ON for 0 1 second OFF for 0 1 second Error display Power Heater check Blue LED Switch Power ON 0Ω Switch Power OFF Ω 10 Troubleshooting Q Cautions for service work Before starting the service try to reproduce the error phenomenon 2 to 3 times Secure a stable foothold during the service Before starting the service always unplug...

Page 19: ...y work FUSE3 5A may be blown and ZNR1 may be destroyed No display No Operation Power O Heater O Check O Blue LED O Normal value 0Ω Abnormal value Ω side Tester side Blue Blue Red Black White 1Check if the relay connector of motor temperature fuse is disconnected In the terminal block box 2Check if TAB5 and TAB6 connectors are disconnected 3To see if the motor temperature fuse is blown measure the ...

Page 20: ... board Check the sensor circuit board for disconnection or displaced fixing position Visually check for cracks on the circuit board corroded electronic parts defective soldering etc Dirty window may shield incoming light Make clean the sensor window Check if CN5 or CN15 is disconnected CN15 is on the sensor circuit board Check the sensor circuit board for disconnection or displaced fixing position...

Page 21: ...cted heater thermostat lead wire Disconnecting CN9 from the control circuit board measure the resistance between pins 2 and 3 at the lead wire side If the normal value is not detected replace the heater thermostat Note If the circuit is open due to broken wires etc the resistance becomes Ω Defective heater thermostat Room thermostat error Power O Heater O Check O Blue LED O Heater error Power O He...

Page 22: ...6 is on the indicator circuit board and CN17 on the volume circuit board Disconnected wind volume lead wire Disconnecting CN3 from the control circuit check if the resistance between pins 1 and 2 at the lead wire side changes within the following range when the wind volume knob is turned Unless the normal value is detected replace the wind volume knob Operation continues after pulling hands out No...

Page 23: ... Water leaks from the product 1Check if the drain tank is filled up Drain water Since the main unit may absorb moisture if the product is operate while the drain tank is full drain water will flow over when it is filled up beyond its capacity 2Is the drain tank installed properly Wind does not blow immediately after turning on the power switch and inserting hands It takes 1 second after turning on...

Page 24: ...led sections according to the instructions described in the troubleshooting Secure a stable foothold during the service Before starting the service always unplug the power cord from the outlet or turn off the earth leakage breaker where no power cord plug is provided Sufficient care must be taken to avoid electric shock or injury Make sure to connect power supply wires correctly After completing r...

Page 25: ... board clamping nut indicated by O Caution for assembly Install the knob aligning with the form of volume shaft 3 Indicator circuit board and illumination circuit board 1 Remove the maintenance cover See 2 1 2 Disconnecting lead wires remove the indicator circuit board and the illumination circuit board from the spacers indicated by O ...

Page 26: ...ircuit board remove the circuit board cover indicated by O 7 Disconnect lead wires from the control circuit board and remove the cord bushings indicated by O Cautions for assembly Remove the terminal block cover before the control circuit board Do not omit to use toothed washers when installing the grounding wires Cautions for assembly Connect lead wires referring to the printing on the control ci...

Page 27: ...onnector indicated by Q Cautions for assembly Set the blower lead wires at the left side of this side See photograph Replace the packing used at the disassembled section with new one Take care not to twist the packing when installing it 6 Light emitting circuit board 1 Remove the front panel See 4 1 2 Remove panel support plate left clamping screws four PTT screws 4 x 16 indicated by O Cautions fo...

Page 28: ...used at the disassembled section with new one Take care not to twist the packing when replacing it Cautions for assembly Hook lead wires at the claw on the panel front indicated by O Cautions for assembly Take care not to pinch the lead wires with the circuit board mounting plate 5 Remove the circuit board mounting plate front indicated by O Cautions for assembly Fix the light emitter circuit boar...

Page 29: ...it Be careful not to omit to install any O ring or packing Cautions for assembly Closely contact the panel lower and the panel rear before clamping with screws indicated by O Cautions for assembly Confirm that there are no cracks on the panel center indicated by O 4 Remove clamping screws from the back eight special screws 4 x 16 indicated by O 5 Remove the panel lower Cautions for assembly Replac...

Page 30: ...it board from the circuit board mounting plate rear Release from claws at four places indicated by O Cautions for assembly When setting the light receiving circuit board on its mounting plate rear confirm the mounting direction of the board See photograph After installing the circuit board confirm that the LED is not tilting Cautions for assembly Accommodate lead wires in the groove on the side of...

Page 31: ...e main unit frame 4 Remove grounding wire clamping screw one special PP screw with spring washer 4 x 8 indicated by O 5 Remove rear cover clamping screws five special screws 4 x 12 indicated by 6 Remove the heater box indicated by O 7 Remove heater box clamping screw one special screw 4 x 8 indicated by O Cautions for assembly Hook the claw on the heater box in the square hole of heater base right...

Page 32: ...tor 9 Remove thermistor clamping screw one special PPT screw 4 x 8 indicated by O 0 Remove fuse mounting plate clamping screw one SW PW PP screw 4 x 8 indicated by O A Remove thermal fuse fixing screws two SW PW PP screws 4 x 8 indicated by O Cautions for assembly Set and clamp with screws the holding plate at the marked position on the thermal fuse lead wire Cautions When reassembling removed par...

Page 33: ...screw PP screw SW PP screw PPT screw PCT screw PTT screw PT screw SET screw SQ SET screw P SET screw PMT screw HS SET screw P R W screw P C W screw P R C W screw R W screw PW PP screw SW PW PP screw Description Cross recess flat head machine screw Cross recess oval head machine screw Cross recess pan head machine screw Cross recess pan head screw with spring washer Cross recess tapping screw Cross...

Page 34: ...4 857 Packing 1 8 M45 664 801 Sensor holder 1 9 M45 664 830 Side panel left 1 10 Y45 613 361 Wiring diagram 1 11 M45 664 800 Front panel 1 12 M45 632 045 Special screw 4 16 4 13 M45 664 823 Panel holder left 1 14 M45 664 824 Panel holder right 1 15 M45 664 820 Exhaust duct 1 16 M45 664 831 Side plate right 1 17 M45 664 829 Duct piece 1 18 M45 664 818 Panel front 1 19 M45 664 828 Board fix plate fr...

Page 35: ...9 10 11 12 13 14 15 16 17 18 19 20 21 1 2 3 4 5 6 7 8 36 5 5 5 5 7 7 ...

Page 36: ...41 M45 664 175 Volume board 1 JT 24S D 42 M45 664 258 Switch heater 1 43 D41 233 018 Special screw 4 16 9 44 M45 664 176 Light sensor board 1 JT 24S E 45 M35 139 095 Spacer 3 46 M45 664 807 Maintenance cover 1 47 M45 664 172 Display board big 1 JT 24S A 48 M45 664 802 Installation panel 1 49 X40 256 228 Cord band 1 50 M45 664 813 Drain tank 1 51 M45 664 814 Tank cover 1 52 M45 632 047 Special scre...

Page 37: ...50 51 52 53 54 55 56 57 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 38 52 52 52 5 ...

Page 38: ... PT screw 4 8 BS 3 65 M45 632 225 Cord bush 1 66 D40 022 344 Cord clip 3 67 M45 664 815 Drain pipe 1 68 M45 664 803 Air supply duct 1 69 M45 632 046 Special screw 4 50 1 70 M45 664 858 Packing 1 71 M45 664 819 Exhaust duct 1 72 M45 632 229 O ring 1 73 M45 608 227 Blower stopper 1 74 M45 664 811 Blower case 1 75 Y45 613 400 Blower assy 1 76 M45 664 227 Floating rubber 1 ３９ Q ty pcs unit ...

Page 39: ...70 40 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 5 5 5 5 52 5 63 70 70 66 63 64 64 ...

Page 40: ...PT screw 4 12 2 86 Y45 608 236 Terminal block 1 ML 20 A37 3P 87 M45 664 816 Box reactor 1 88 M34 981 225 Cord bush 1 89 Y45 613 179 Reactor 1 90 H00 312 007 PTT screw 4 6 3 91 M45 664 817 ACL cover 1 92 Y45 611 223 Cord clip 1 93 D41 023 223 Cord clip 1 94 Y45 613 803 Board cover 1 95 M45 664 826 Cover 1 96 M45 667 225 Cord bush 1 97 M45 632 228 Cord bush 1 98 Y45 613 171 Circuit boart 1 JT 24M4H ...

Page 41: ...92 93 94 95 96 97 98 81 82 83 84 85 86 87 88 89 90 91 42 84 5 90 ...

Page 42: ... 3 108 M45 664 228 Cord clip 1 109 M45 664 842 Fuse fix plate 1 110 Y45 613 800 Heater 1 111 M45 664 045 Special screw PPT 4 8 1 112 M45 664 841 Heater base right 1 113 M45 640 226 Cord bush 1 114 M45 664 840 Heater base left 1 115 M34 660 019 Special screw 4 8 4 116 M45 664 224 Cord clip 1 117 M34 869 018 Special screw 5 118 D40 038 344 Cord clip 1 119 Y45 613 802 Back cover 1 120 H00 000 430 PP ...

Page 43: ...12 44 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 shows accessory parts 1 piece 5 66 1 piece 107 115 115 117 84 ...

Page 44: ...al Remarks Price for safety 131 M45 664 225 Lead wire 1 Volume Display 132 M45 664 219 Lead wire 1 Main Display 133 M45 664 221 Lead wire 1 Main Light catch 134 M45 664 220 Lead wire 1 Main Sensor light 135 Y45 611 800 Thermo lead wire 1 Q ty pcs unit ４５ ...

Page 45: ... 46 131 132 133 134 135 ...

Page 46: ...Printed in Japan February 2007 35 MEE ...

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