Paper-Feed Circuit Board; Figure 8-33 Removing The Engine Control Board - Tektronix Phaser 440 Service Manual

Paper-feed circuit board

6. Lift out the engine control board.
Note
If you exchanged an old engine control board for a new engine control
board, be sure to exchange the NVRAM (IC 2) from the old board into
the new board. The NVRAM IC contains the thermal head
temperature and sensor calibration setting. If, for some reason, you
must reprogram the NVRAM IC, perform the procedures "Thermal
head temperature adjustment" on page 9-16 and "Paper-path check"
on page 9-7.
Reverse these steps to install the engine control board.
6

Figure 8-33 Removing the engine control board

The paper-feed circuit board can be removed as a part of the paper-feed module
disassembly procedure. Refer to the earlier procedure "Paper-feed module" on
page 8-6.
FRU Disassembly/Assembly
9015-31
Service Manual
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8-41