Harman Kardon AVR 110, Serivce Manual

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2
AVR110/210/310/510, AVR3000/4000/5000
2. Possible blown line fuse; inspect and replace if necessary: When line fuse FU981 is blown in the AVR
series, the Amber Standby Indicator will still light, but when unit is switched ON, the unit will go into protection.
(Red indicator)
a) Remove (14) Phillips screws holding the top cover to the receiver; remove the cover.
b) Line fuse FU981 is located at the rear, on the vertically mounted Standby PCB close to the connector
where the main AC power cord enters the receiver. Long-nosed pliers or similar tool may be used to
remove it. Connectors nearby it may have to be unplugged to access the fuse.
c) See chart below for proper replacement fuse:
MODEL DESCRIPTION H/K PART#
AVR110/210 5A Slo-Blo 5x20mm 125V J5502250320X
AVR310 6.3A Slo-Blo 5x20mm 125V A091-0013-0
AVR510 7A Slo-Blo 5x20mm 125V J5502270320X
AVR3000 2.5A Slo-Blo 5x20mm 250V G65025225114
AVR4000 3.15A Slo-Blo 5x20mm 250V J5503331330X
AVR5000 4A Slo-Blo 5x20mm 250V J5502240320X
d) Replace any connectors that were disconnected, replace the top cover; test the unit
NOTE: If line fuse FU981 blows again after a short period, with no speaker loads connected, problem is
another, more serious issue not covered in this bulletin.
AVR110 harman/kardon