Service manual

1. GENERAL
1.4 Service Manual BSM-4100
Service Policy, Service Parts and Patient Safety Checks
Service Policy Our technical service policy for this instrument is to replace the faulty unit, board
or part or damaged mechanical part with a new one. Do not perform electrical
device or component level repair of the multilayer board or unit. We do not support
component level repair outside the factory for the following reasons:
• Most of the boards are multilayer boards with surface mounted electrical
devices, so the mounting density of the board is too high.
• A special tool and special repair skill is required to repair the multilayer boards
with surface mounted electrical devices.
Disassemble the instrument or replace a board or unit in an environment where the
instrument is protected against static electricity.
As background knowledge for repair, pay special attention to the following:
• You can reduce the repair time by considering the problem before starting repair.
• You can clarify the source of most of the troubles using the information from the
diagnostic check function of the instrument. Refer to “Diagnostic Check “ of this
manual.
Refer to “Replaceable Parts List” of this manual for the service parts for technical
service that we provide.
NOTE
When ordering parts or accessories from your Nihon Kohden
representative, please quote the NK code number and part name which
is listed in this service manual, and the name or model of the unit in
which the required part is located. This will help us to promptly attend
to your needs. Always use parts and accessories recommended or
supplied by Nihon Kohden Corporation to assure maximum
performance from your instrument.
Service Parts