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Midea TJE17GS7-S00N0A, Service Manual

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Midea TJE17GS7-S00N0A Service Manual Download Page 41

3) TFT Driver Board--Top Components

8

6

4

2

Item

7

5

1

3

Name

DDR3 1GB

CPU 4*A35

Surface mount fuse 

WIFI&BT module-not used 

PMIC  providing different voltages

LED –if yellow, it is power on

Power amplifier

eMMC 8GB

3) TFT Driver Board--Bottom Components

Item

1

Name

Boost led driver- Providing  

backlight voltage for LCM 

1

2

3

5
6

7

8

4

1

39

Summary of Contents for TJE17GS7-S00N0A

Page 1: ...Commercial High Speed Oven SERVICE MANUAL TJE17GS7 S00N0A Oven Capacity 18 Liter 208 240v 60hz 6000w...

Page 2: ...out of service 3 1 Checking the condition of your appliance 3 2 Fault finding 4 1 Electrically live components 4 2 Moving heavy loads 4 3 Sharp edged sheet metal parts 4 4 Hot surfaces 4 5 Live compon...

Page 3: ...llowing parts of this document before starting any work The sections that describe the activity to be carried out Users are cautioned that repairs should be performed by a TJE17G S00N0A authorized ser...

Page 4: ...he hazard arise Preventive action Risk of electric shock from live parts Ensure that all electrical connections are in perfect condition and fixed securely before putting the appliance into use On the...

Page 5: ...der the control panel On the appliance and on adjacent metal parts On the appliance and on adjacent metallic accessories Switch off all connections to the power supply Take protective measures at ever...

Page 6: ...ere or in what situations does the hazard arise Preventive action Risk of crushing of body parts Risk of electric shock from live parts While appliances are being moved on a wheeled platform Disconnec...

Page 7: ...s or wrong electrical connections If one of the electrical components is defect for example due to a short circuit or if the internal wiring is refitted incorrectly when servicing repairing the oven N...

Page 8: ...floor Ensure that the floor around the appliance is dry at all times Always observe the requirements for the supporting surface when taking the appliance out of service In front of the appliance Risk...

Page 9: ...ng cavity and door of the appliance for signs of wear damage distortion etc If required refer to the Replacing components section of this manual 4 Complete an Earth Insulation test see Tests section o...

Page 10: ...the error codes for more details Check the Running Status to find the operational performance of the main components Click Defect Records button to display Error Logs Oven Counters Running Status Res...

Page 11: ...the error by restarting the cooking When error code E 1 E 5 E 6 occur and the text description is Magne tron2_ the 1R and 4R symbols get red 1R and 4R are associated they turn green or red at the sam...

Page 12: ...XH 4P connectors fitted 3 2 Fault finding 3 2 1 Hardware control components Operations communication Starting up sequence With the oven switch in the OFF position and the mains power ON the QTS SRB b...

Page 13: ...mperature sensor Error Condition Cavity sensor short Sensor Short Cavity Sensor Error Description Trigger Possible Causes System Response The sensor is not connected Or is broken open circuit The cont...

Page 14: ...mains voltage Faulty Motor Driver CB Common Breakdown No communica tion can be made between the TFT screen and SRB Loss of communica tion between the TFT screen and SRB more than 10 second TFT screen...

Page 15: ...eater Replace the SRB relay Replace the SSR Reset the thermostate Change the SRB Change the SRB E17 E01 E02 The SRB is bad The SRB is bad The sensor is bad The sensor is bad Sensor Open Check the ther...

Page 16: ...ted Replace the Magnetron E 1 Replace the Inverter The Magnetron is bad Inverter leakage Check the Magnetron is normal Yes Not Replace the SRB relay RLY1 RLY5 Replace the Interlock assembly Replace th...

Page 17: ...ly is bad Check the signal wires of TFT screen and SRB CN9 is loose Replug the terminal Replace SRB Replace TFT screen Replace Noise Filter EMI Filter Check Noise Filter EMI Filter is normal The inver...

Page 18: ...accessories is connected to an equipotential bonding system Exercise caution Wear personal protective equipment Use a forklift truck or pallet truck to place the appliance in the installation position...

Page 19: ...ons are intact and connected securely before you reconnect the appliance to the power supply Before putting the appliance back into operation make sure that the appliance including all metallic access...

Page 20: ...oven from the electrical supply Keep the oven door closed to stifle any flames While testing with a Portable Appliance Tester PAT is not an automatic requirement for the Commercial High Speed Oven mo...

Page 21: ...e leads removed Measure the resistance Multi meter scale Rx1 NOTE Make sure heater is fully cooled when tested Measure the resistance with 500V 100M ohm insulation resistance meter Normal more than 0...

Page 22: ...pen 1800 rpm 7 Door closed not cooking 2150 rpm 17 Door closed cooking speed as specified by program or setting up to a maximum of 5000 rpm 100 Convection fan LED status display Inverter Off No supply...

Page 23: ...before commencing work Anti static precautions have been taken The casing of the appliance has been removed Check the following 4 Item 2 4 6 description Three phase connections to convection fan moto...

Page 24: ...or the weight of the appliance when lifting it value depending on age and gender Observe the local occupational safety regulations Wear personal protective equipment Working with or behind sharp edged...

Page 25: ...annot be switched on again Always discharge the high voltage capacitors before working on the appliance using a suitably insulated 10M resistor Make sure that the appliance is de energized Make sure t...

Page 26: ...TFT Screen illuminates the user interface Air outlets ON OFF appliance switch Used to turn the Commercial High Speed Oven on and off Turning this switch off does not isolate the appliance from the ele...

Page 27: ...5 3 Overview View left hand side View right hand side 25...

Page 28: ...View Baseplate side View Top side 26...

Page 29: ...to the door hinges and switch off the magnetron s when the oven door is opened The door assembly can be detached for accessing the door hinge assembly Monitor cavity temperature The cooling fan pulls...

Page 30: ...netic noise between the inverter and the mains power supply Noise Filter Assembly Inverter Requirements Check that the following requirements have been met Removing the panels of the casing Overview o...

Page 31: ...fasten four M4 screws at the back panel of the appliance attaching the side panel to the back panel Remove top panel first Unfasten four M4 screws at the back panel of the appliance attaching the top...

Page 32: ...over to one end of the door assembly with iron pliers to remove the self locking state of the hinge Tilt the oven door to an angle of approx 30 relative to the ground 3 1 Fitting the components of th...

Page 33: ...ng becomes trapped under the magnetron mounting points e g insulation material while fitting the magnetron This can lead to microwave leakage 2 Remove the four M4 screws on both side of magnetron The...

Page 34: ...ons to the power panel 5 8 Replacing the control panel Requirements 2 Unplug the wire Note It is necessary to record the corresponding insertion point of each wire before unplugging Remove the three M...

Page 35: ...Remove the two M4 screws Unplug the three wires Lift up the control panel 3 1 The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power can...

Page 36: ...1 The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The top left and right panels...

Page 37: ...Fitting the baseplate assembly Follow the steps in the reverse order to fit the baseplate assembly Remove the four M6 nut both side of baseplate assembly 3 35...

Page 38: ...AGRAMS AND BOARDS OUTPUT 12 10 8 5 Item 11 9 7 Code Name CN9 CN2 CN8 CN11 SCR Signal Motor Signal NA Button LED Drive CN16 CN15 CN6 CN10 Microwave Inverter 0 Signal Motor FAN Drive TFT Signal Microwav...

Page 39: ...Relay NA NA 208V FAN Relay DM Relay TFT Power Relay RLY9 RLY7 RLY12 RLY4 RLY2 GRILL Relay LAMP Relay 240V FAN Relay Microwave Inverter 0 Relay INPUT 13 12 Item 14 7 Code Name M2 CN100 Current Suply 20...

Page 40: ...power supply and UART communication RTC connector used for capacitor power supply Speaker connector to drive 3W speaker not used LCM connector 1 TFT Display Module 2 Item 3 1 Name Top glass lens Inter...

Page 41: ...GB CPU 4 A35 Surface mount fuse WIFI BT module not used PMIC providing different voltages LED if yellow it is power on Power amplifier eMMC 8GB 3 TFT Driver Board Bottom Components Item 1 Name Boost l...

Page 42: ...6 3 Circuit diagrams TJE17G S00N0A wiring diagram 208V 240 60Hz 40...

Page 43: ...carry out a test within the time limit will cause a test failure and the Recommission Test will have to be restarted 1 Test Menu 07 COMMISSIONING THE APPLIANCE 7 1 Recommission Test Recommissioning t...

Page 44: ...is also affected by line voltage under load so this test is an approximation only a Fill a microwave safe container Glass with 1 liter of water at 20 68F b Place the container into the center of cavi...

Page 45: ...d The microwave oven is to be operated at 100 power scroll the power level pad a e Press start key b and operate for 5 minutes f Hold the probe on the grip provided and move at 2 5 cm second g Touch...

Page 46: ......

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