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Chapter 4 Disassembly / Assembly and Adjustments
REP8.10 PWBA MCU (PL8.3.6)
[Removal]
Never fail to perform the diagnostic operation. Otherwise the data will be lost in
the worst case.
Use the wrist strap to protect the PWB from the electrostatic.
1) Perform the NVM Save to evacuate the MCU data.
2) Turn on the power while pressing the "" key and "" key on the control panel.
3) The diagnostic screen comes up.
4) Press the [OK] key once.
5) Press the "" key several times until "Engine Diag" is displayed. Press the [OK] key once.
6) Press the "" key several times until "NVM Settings" is displayed. Press the [OK] key once.
7) Press the "" key several times until "SaveNVM to ESS" is displayed. Press the [OK] key
once.
8) Press the [OK] key once, and NVM Save is performed.
9) After NVM Save is complete, press the [STOP] key several times until " Engine Diag" is dis-
played.
10) Press the "" key several times until "Exit Mode" is displayed.
11) Press the [OK] key two times. “Service Mode Printer” are displayed.
12) Turn off the power to exit.
13) Remove the POWER CORD from outlet.
14) Remove the CASSETTE ASSY 250 MG AIO. (REP2.1)
15) Open the COVER ASSY FRONT (PL1.2.1).
Cover the drum of the PHD ASSY to avoid exposure to light.
16) Remove the PHD ASSY. (REP4.6)
The FUSING UNIT part is very hot. Take added care not to get burned when
performing the service operation.
17) Remove the FUSING UNIT. (REP6.1)
18) Remove the COVER ASSY SIDE R AIO. (REP1.8)
19) Remove the COVER ASSY SIDE L AIO. (REP1.9)
20) Remove the COVER POLE OUT AIO. (REP1.1)
21) Remove the SHIELD ASSY ESS AIO. (REP8.5)
22) Remove the COVER POLE IN AIO. (REP1.3)
23) Remove the COVER REAR AIO. (REP1.5)
24) Remove the COVER TOP AIO. (REP1.4)
25) Remove the CHASSIS ASSY LVPS. (REP8.12)
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