Toshiba MR-2017, MR-2020 service manual Rewriting ROM Firmware Updating, Connector

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7.2Rewriting ROM (Firmware Updating)

It is feasible to update the firmware automatically by connecting the download jig to the PC board and turning the power of the equipment ON. The download jig K-PWA-DLM-320 is used.

<Procedure >

(1)Turning OFF the power of the equipment and take off the ADF rear cover.

(2)Connect the download jig with the connector (CN81) on the PC board.

(3)While pressing [0] and [8] simultaneously, turn ON the power. (rewriting data starts)

(4)During the data is rewritten, the LED on the download jig lights. When the data rewriting is com- pleted, the LED blinks slowly (at an interval of 0.8 sec.). If the LED blinks fast (at an interval of 0.1 sec.), the rewriting has been failed.

(5)Turn OFF the power of the equipment and remove the download jig.

(6)Install the ADF rear cover.

*If rewriting data is failed, turn OFF the power and repeat the procedure.

Connector

Fig. 7-2

MR-2017/2020

© 2005 - 2009 TOSHIBA TEC CORPORATION All rights reserved

MAINTENANCE AND REWRITING ROM

 

7 - 2

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Contents MR-2017/2020 Trademarks 09/12 Page Contents Control PC Board Circuit Specification MR-2017 MR-2020Specification Main Components Location ComponentsOriginal tray Registration roller Sectional ViewR4 R2 R3 R1 Original exit tray Intermediate transfer rollerElectric Parts Layout SW M1 SOL S7 ADFSymbols and Functions of Various Components Symbol Name FunctionADF control PC board ADF Controls the ADF Board Diagram of Signal Blocks Description of Interface Signals RxDDescription of Operations Feed motor drive section Read motor drive sectionOriginal feed motor drive section Read motor drive section Read motor Exit roller Pre-reading rollerOriginal Size Detection Original width size Orange Yellow GrayPower on Standby ADF jam access Cover OPEN? All sensors OFF?Empty sensor ON? Original Certain period Time passed?Read motor rotates Scanning start signal Certain periodSent level High Original exit Jam Read motor stopsDescription of Circuit Drive Circuit for Read Motor Reset Circuit Description of Operations Cover Front coverFront cover Rear cover Jam access coverRear cover PinJam access cover Left coverLeft cover Original tray Bushing ScrewRoller Paper feeder unitClip Shaft Pickup roller PMFeed roller PM Clip Pickup rollerPulley ShaftSeparation roller PM Separation roller unitFeeder lower guide Original trayStay Registration roller Exit rollerExit guide Exit rollerHinge pin Pre-reading guideIntermediate transport roller Pre-reading guidePost-reading roller ConnectorPre-reading roller Screw BushingFlange Bearing Bushing Pulley Ring Bushing Ring Pulley Timing beltHolder Upper guide Motor / Motor drive section Original feed motor M1Spring Ring Bushing Original feed motor drive sectionHarness clamp Bracket WhiteRead motor M2 Read motorRead motor drive section SpringBracket Screw Tensioner Ring Original pickup solenoid SolenoidOriginal pickup solenoid SOL Mark-off lineSensor/switch Original tray width sensor S2Original tray sensor S1 Original tray sensorJam access cover sensor S7 Original empty sensor S3Metal plate cover Original registration sensor S4 Original empty sensor Original registration sensorRead sensor S5 Original exit/reverse sensor S6ADF opening/closing sensor S8 Radf opening/closing sensorJam access cover opening/closing switch SW BracketWhite Red Black PC Board ADF control PC board ADF boardADF board Others Hinge stopperAdjustment of Position CheckingAdjustment Adjustment Match the screw hole positions Install the right-hand hinge screw at the rear Place the platen sheet on the original glass Adjustment of Height ~0.2mm 0mmTurn it clockwis Adjustment of Skew 19 Chart OriginalAdjustment Adjustment of the Leading Edge Position 23 Chart OriginalAdjustment of Horizontal Position Adjustment of Copy Ratio Adjustment of ADF Opening/Closing Sensor Troubleshooting Troubleshooting for Mechanical ErrorsTroubleshooting for Electrical Errors Jam not reaching the original registration sensor Feed signal reception jamJam Jam not reaching the read sensorStop jam at the read sensor Radf jam access cover openStop jam at the registration sensor Stop jam at the exit sensorCover open jam in the read ready status Troubleshooting Remarks Periodic MaintenanceCleaning Lubrication/Coating Replacement Operation check CoatingRewriting ROM Firmware Updating Circuit Diagram / Harness Diagram Assembly of PC BoardCircuit Diagram PWA-F-DLG-644PWA-F-DLG-643 Control PC Board Circuit Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram

MR-2020, MR-2017 specifications

The Toshiba MR-2017 and MR-2020 are innovative microwave ovens that exemplify Toshiba's commitment to advanced cooking technology and user-friendly design. Designed for modern kitchens, these models combine efficiency and versatility, making them ideal for a wide range of cooking tasks.

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