Toshiba B-450-R manual Replacing the PS Unit

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2. MAJOUR UNIT REPLACEMENT

EO18-33021

2.3. REPLACING THE PS UNIT

2.3 REPLACING THE PS UNIT

WARNING!

Replace only with the same type and rated of fuse for continued protection against risk of fire.

1)Remove the Top Cover and Side Cover L. (Refer to Section 2.1)

2)Remove the PT-3x10 screw to detach the Side Cover R.

PT-3x10 Screw

Side Cover R

3)Disconnect the Power Harness and Fan Motor Harness from CN8 and CN10 on the CPU PC Board.

CN8

Power Harness

CN10

Fan Motor Harness

2- 7

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Page 9 Page 11
Contents Series Table of Contents Procedure ChecksMajor Unit Replacement Replacing the CPU PC BoardCN9 CN5 CN2 CN1 Release the two Hooks securing the Printer Unit Remove the SMW-3x6 screw, N-3 Nut and Ground Plate Replacing the Motor Ribbon MotorStepping Motor Replacing the PS Unit Hook PS Unit Printer Block Bottom Cover Detach the PS Unit from the Bottom Cover Power Switch Inlet Ass’y Replacing the Print Head Replacing the Media Sensor Replacing the Sensor PCB TRSensor PCB TR Connector Sensor Holder Harness Rivet Replacing the Sensor PCB LED Release the two Hooks securing the Printer Unit Printer Unit Harness Rivet Sensor PCB LED Troubleshooting
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