GE MEDICAL SYSTEMS
2127661
LOGIQ 400 SERVICE MANUAL
RENEWAL PARTS
6–200
REV 9
6–2–79 Time Keeper RAM (FRU No. 613)
Time Required
30 Minutes
Tool Required
Screwdriver
IC Remover
Procedure
Refer to ILLUSTRATION 6–114.
1. Turn OFF the system.
2. Remove the Side Cover Left (FRU 301). Refer to 6–2–31 on page 6–127.
3. Unscrew five Nest Cover screws.
4. Remove the Nest Cover.
5. Remove the MPU Assy (FRU 612). Refer to 6–2–78 on page 6–198.
6. Remove the Time Keeper RAM mounted on the CPU Assy.
Note
After replacing a time keeper RAM with new one, it is necessary to install the system ID number into
the new time keeper RAM 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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