CPU boards and softwares
Document No.8002948
7
3
SERVICE PROCEDURES
3.1
General service information
The field service of the B-CPU5/B-CPU4 is limited to replacing the actual CPU board, the
SRAM/Timekeeper battery, or mechanical parts. Faulty CPU boards and used service software
cards can be returned to Datex-Ohmeda for repair/exchange.
Datex-Ohmeda is always available for service advice. Please provide the unit serial number, full
type designation and a detailed description of the fault.
CAUTION
Only trained personnel with appropriate equipment should perform the tests and
repair outlined in this section. Unauthorized service may void warranty of the unit.
3.2
Service check
These instructions include complete procedures for a service check. The service check is
recommended to be performed after any service repair. However, the service check procedures can
also be used for determining possible failures.
The procedures should be performed in ascending order.
The instructions include a check form (
Appendix
)
which should be filled in when performing the
procedures.
The mark
?
in the instructions means that the check form should be signed after performing
the procedure.
The procedures are designed for monitors that contain the S/5 monitor software, L-xxx01(A).
However, most of the procedures also apply to monitors that contain some other monitor software
revision / type.
3.2.1
Recommended tools
Tool
Order No.
Notes
Command Bar / Command Board
M-REC
M-NE(12)STPR/M-ESTPR/M-ESTP
Screwdriver
General
Make sure that no cables or modules are connected to the Central Unit, F-CU8. Lift off the video
display with its stand, if placed on the Central Unit.
