B&K Precision 4040A - Manual - Manual (Page 20)

20
MAINTENANCE
WARNING
The following instructions are for use by qualified service personnel
only. To avoid electrical shock, do not perform servicing other than
contained in the operating instructions unless you are qualified to
do so.
Remember that ac line voltage is present on line voltage input
circuits any time the instrument is plugged into an ac outlet, even if
turned off. Always unplug the function generator before performing
service procedures.
FUSE REPLACEMENT
1. Locate the fuse holder on the input line receptacle.
2. Remove the fuse holder and replace the fuse with an equal
value fuse
INSTRUMENT REPAIR SERVICE
Because of the specialized skills and test equipment required for
instrument repair and calibration, many customers prefer to rely
upon B+K PRECISION for this service. We maintain a network
of B+K PRECISION authorized service agencies for this purpose.
To use this service, even if the instrument is no longer under
warranty, follow the instructions given in the WARRANTY
SERVICE INSTRUCTIONS portion of this manual. There is a
nominal charge for instruments out of warranty.
AC LINE SELECTION
This instrument can operate on 120 or 230 VAC source at 50 or 60
Hz. The internal jumper allows you to select the line voltage.
Before connecting the power plug to an AC line outlet, be sure to
check that voltage selector plug is set in the correct position
corresponding to the line voltage in your location and the fuse
rating is as shown in the table.
Line Voltage Fuse
120V 250 V 0.2 A
230V 250 V 0.1 A