Tektronix Phaser 740 - Engine Control Board; Removing the Engine Control Board

108 Phaser 740 and 750 Color Printers
Engine control board
Note Swap NVRAM IC4 . IC4 stores print engine parameters and all
consumable life counts and the engine print count. Connector CN28,
next to IC4 has no corresponding plug.
Removing the engine control board
740-7-11
Engine
control
board
IC 4
Engine
control
board
bracket