Tektronix PHASER 380, Service Manual

Page: 270 / 346

8-64
Phaser 380 Color Printer
8
Field Replaceable Unit Disassembly/Assembly
I/O board 1
1.
Turn off the printer and remove the power cord.
2. Remove the left-side cover as explained in the earlier topic, “Cabinet
panels and covers” on page 8-4.
3. Disconnect the wiring harnesses leading to I/O board 1. To
disconnect the ribbon-style wiring harness, unlock its connector by
pulling on the connector’s ears to release the tension on the wiring
harness. Note for reassembly that the ribbon cables contacts face out
towards the I/O board 1.
4.
Remove the six screws securing I/O board 1 to the engine frame.
Remove the interconnect board.
Caution After reinstalling I/O board 1, before turning on the printer, you
should always make sure that the head tilt cam gear is latched by
the head tilt solenoid and that the head tilt cam gear is disengaged
(via its missing teeth) to the drive gear.
Tools required
■
Magnetic screwdriver
■
#2 Phillips tip
Figure 8-42 Removing I/O board 1
Remove
screws
I/O board 1
9661-39
Head tilt cam
gear disengaged
from drive gear
Head tilt cam
gear latched by
head tilt solenoid
Head tilt
cam gear