Maintenance 5
U1253B User’s and Service Guide 137
Troubleshooting
If the instrument fails to operate, check the battery and test
leads. Replace them if necessary. After that, if the
instrument still does not function, check to ensure that you
have followed the operating procedures given in this
instruction manual, before considering servicing the
instrument.
When servicing the instrument, use only the specified
replacement parts.
Table 5- 5 on page 138 will assist you in identifying some
basic problems and their solutions.
To avoid electric shock, do not perform any servicing unless you are
qualified to do so.
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