Faults / Fuses / Maintenance - Bose B1500 Owner's Manual

6. Faults / Fuses / Maintenance

There are internal secondary (low voltage) fuses on some internal supply rails.
In the event of failure the unit MUST BE DISCONNECTED FROM THE MAINS
SUPPLY BEFORE REMOVING THE UNIT COVER. The fuses should be
replaced with the same type only. THIS SHOULD BE CARRIED OUT BY
QUALIFIED PERSONS ONLY.
WARNING:
If the replaced fuse blows again then there is a serious fault within the unit.
Refer to a service engineer or contact your dealer. NEVER INCREASE THE
RATING OF THE FUSE.
ENSURE THAT ELECTRICAL POWER TO THE UNIT IS DISCONNECTED
BEFORE CARRYING OUT ANY MAINTENANCE.
NOTE:
The filter between the air intake (frontplate) and the frontpanel of the B1500 & B2000
amplifiers should be cleaned or replaced periodically, e.g. 12-24 months. (Filters in
amplifiers located in more 'dirty' atmospheres may require more frequent
maintenance). No special tools are required to remove the filters. The filter should be
'dry' cleaned, using a vacuum cleaner preferably. Running the amplifier without a
filter is not recommended. Replacement filter material is available.
No other regular maintenance is required.
If you have any doubt about carrying out this procedure, refer to a qualified
service engineer or contact your Bose ProPartner.
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