Troubleshooting; Table 5-5 Basic Troubleshooting Procedures - Agilent Technologies U1253B User's And Service Manual

5 Maintenance

Troubleshooting

WA R N I N G

Table 5-5 Basic troubleshooting procedures

Malfunction
No OLED display after switching ON
No beeper tone
Failed to measure current
No charging indication
Remote control failure
136
To avoid electric shock, do not perform any servicing unless you are
qualified to do so.
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 will assist you in identifying some basic problems.
• Check battery. Charge or replace battery.
• Check the Setup mode to verify whether the beeper function has been set to
OFF. If so, select the desired driving frequency.
• Check the fuse.
• Check external DC adapter to ensure that its output is DC 24 V and that the
plugs are inserted properly into the charging terminals.
• The Agilent logo on the IR-USB cable connected to the multimeter should be
facing up.
• Check the baud rate, parity, data bit, and stop bit (default is 9600, None, 8, and
1) in the Setup mode.
• Ensure that the required driver for IR-USB has been installed.
Troubleshooting procedure
U1253B User's and Service Guide