Dell 2135cn Service Manual page 559

Removal 31 KIT PWBA MCU (PL10.7.99)
Note: Never fail to perform the diagnostic operation. Otherwise the data will be lost in the worst
case.
Note: 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, " " key, and [MENU] key on the control panel.
3) Enter the password, press the " " key twice, and press the "
comes up.
4) Press the " " key once.
5) Press the " " key several times until "IOT Diag" is displayed. Press the "
6) Press the " " key several times until "NVM Settings" is displayed. Press the "
7) Press the " " key several times until "SaveNVM to ESS" is displayed. Press the "
8) Press the " " key once, and NVM Save is performed.
9) After NVM Save is complete, press the [CANCEL] key several times until "IOT Diag" is displayed.
10) Press the " " key several times until "Complete" is displayed.
11) Press the " " key two times. "COPY, SCAN and FAX" are displayed.
12) Turn off the power to exit.
13) Remove the POWER CORD from outlet.
14) Remove the Tray 1. (Removal 1)
15) Open the COVER ASSY FRONT (PL10.2.1).
Note: Cover the drum of the PHD unit to avoid exposure to light.
16) Remove the PHD Unit. (Removal 3)
Note: The FUSER part is very hot. Take added care not to get burned when performing the
service operation.
17) Remove the FUSER ASSY. (Removal 9)
18) Remove the COVER ASSY SIDE R. (Removal 10)
19) Remove the COVER ASSY SIDE L. (Removal 14)
20) Remove the COVER POLE OUT. (Removal 15)
21) Remove the COVER REAR. (Removal 17)
22) Remove the COVER TOP. (Removal 18)
23) Remove the CHASSIS ASSY LVPS. (Removal 28)
Version 1 2008.02.01
Chapter 3 Removal and Replacement Procedures (RRPs)
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" key once. The diagnostic screen
" key once.
" key once.
" key once.