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SEVEN: USER MAINTENANCE/SERVICE
7.1 FUSE REPLACEMENT
If the fuse is suspected to be defective, it should be inspected and, if necessary, replaced. To inspect or replace the
fuse, please perform the following steps:
(1) Disconnect the AC line cord from the unit to reduce electrical shock hazard.
(2) Remove the fuse by sliding out the fuse holder. The fuseholder is beneath the AC Receptacle. Test the fuse
for electrical continuity with an ohmmeter.
(3) If the fuse is found to be defective, replace it with a replacement fuse as specified in the following table:
Models Fuse Rating
PPS-1322/1302A 2 amp (115VAC) or 1 amp (230VAC), 250V
PPS-1326 4 amp (115VAC) or 2 amp (230VAC), 250V
PPS-2322 4 amp (115VAC) or 2 amp (230VAC), 250V
PPS-1603/10710 5 amp (115VAC) or 2.5 amp (230VAC), 250V
(4) Replace the fuse in the fuseholder and re-install.
(5) Reconnect the AC power cord.
<NOTE:>
USE OF ANY FUSE OTHER THAN THE ONE SPECIFIED MAY CAUSE DAMAGE TO
THE UNIT, POSE A SEVERE FIRE HAZARD, AND WILL VOID THE WARRANTY.
7.2 IN CASE OF DIFFICULTIES
This programmable power supply has been designed to be accurate, reliable, and easy-to-use. However, it is
possible that you may experience difficulties during operation. If there appears to be any kind of problem during
the use of the unit, please perform the following steps to help determine the cause:
(1) Re-read the operating instructions. It is very easy to inadvertently make mistakes in operating procedure.
(2) Remove and test the fuse. The power supply will not function with an open fuse.
If the preceding two steps fail to resolve the problem, please call your local distributors.
<NOTE:>
ATTEMPTED REPAIR, MODIFICATIONS, OR TAMPERING BY UNAUTHORIZED
PERSONNEL WILL VOID THE WARRANTY.
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