GE MEDICAL SYSTEMS
2127661
LOGIQ 400 SERVICE MANUAL
RENEWAL PARTS
6–198
REV 9
6–2–78 P.C. Board(s) (FRU No. 601 through 612)
Time Required
15 Minutes
Tool Required
Screwdriver
Procedure
CAUTION
An electrostatic discharge may damage a component. Turn OFF power and wear the wrist
strap before you remove circuit boards. Do not unplug the power cord to keep ground conti-
nuity.
Do not bend or flex the boards when mounting/dismounting each board. Surface mount IC
boards are very susceptible to damage from flex/torque.
Refer to ILLUSTRATION 6–113.
1. Turn OFF the system.
2. Remove the Side Cover Left (FRU 301). Refer to 6–2–31 on page 6–127.
3. Unscrew the five Nest Cover screws.
4. Remove the Nest Cover.
5. Disconnect two connectors if removing the TRDR Assy. Otherwise, skip this step.
6. Disconnect one connector if removing one of two HBFR Assemblies. Otherwise, skip this step.
7. Move the upper and lower stopper in the direction indicated by the arrow
1
.
8. Pull out the board, do not bend it (
2
).
Note
After replacing a CPU Assy with new one, it is necessary to install the system ID number into the time
keeper RAM on new CPU Assy and set up two items among four system parameters, Video Signal
and Power Frequency.
For system ID installation procedures, refer to Section 4–3–3 (J), SYSTEM ID ENTRY/DISPLAY in
chapter 4 of this manual.
For set–up procedures of system preset parameter, refer to LOGIQ 400 Proprietary Manual,
2127662.
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