Toshiba B-852-R manual Major Unit Replacement

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2. MAJOR UNIT REPLACEMENT

EO18-33018

2.4 Replacing the Panel PC Board

5)Remove the two PT-3x6 screws and W-4 washers to detach the panel PC board from the operation panel cover.

Operation Panel Cover

Flat Cable

EPlate

Key Switch

Panel PC Board

W-4

W-4

PT-3x6 Screw

6)Replace the panel PC board with a new one, then reassemble in the order removal.

7)Turn the power on, then confirm that the LCD message is displayed properly.

2-7

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Contents Series Table of Contents Unpacking ProcedureChecks Opening and Removing the Covers Major Unit ReplacementLubrication Replacing the Main PC Board Remove the two SMW-4x8 screws, SMW-3x6 screw and B-3x6 screw Main PC Board 3x6 Screw Main PCB Support Frame SMW-3x6 Replacing the Panel PC Board Major Unit Replacement Replacing the Stepping Motor Pulley Motor Gear Stepping Motor Replacing the Head Up Sensor Replacing the Slit Sensor Rewind/Feed Replacing the Ribbon Motor Rewind/Feed Major Unit Replacement Replacing the Platen Platen Shaft Holder Feed Gap Sensor TR and Black Mark Sensor Upper Side Replacing the Media SensorFeed Gap Sensor LED and Black Mark Sensor Lower Side Pass the media sensor harness between the harness guides Replacing the Print Head Replacing the PS Unit and Reactor Disconnect the PSU harness from CN4 on the PS unit Inlet Periodic Maintenance Procedure Periodic Maintenance Procedure Replacement Periodic Maintenance Procedure Troubleshooting Toshiba TEC