Harman Kardon HK20 User Manual

MAINTENANCE AND REPAIRS
Fuse:
In
the
event
of
a
potentially
damaging
failure
of
tubes
or
components,
the
Model
HK20
is
protected
by
a
1%
ampere,
type
3AG
fuse,
located
on
the
rear
of
the
unit.
If
this
fuse
is
blown,
it
should
be
replaced
only
with
one
of
the
same
rating.
Replacing
with
a
fuse
of
higher
rating
will
not
protect
the
amplifier,
and
may
result
in
severe
damage,
which
will
not
be
covered
by
the
factory
warranty.
Routine Maintenance:
Due
to
the
conservative
design
and
high
quality
componets
of
the
Model
HK20,
no
routine
maintenance
other
than
yearly
tube
checking
is
advised.
Oc-
casional
resetting
of
the
hum
and
output
balance
adjustments,
following
the
procedure
described
above,
will
keep
the
unit
operating
at
peak
efficiency.
These
adjustments
should
certainly
be
made
after
any
tube
replacement.
Repair:
Only the most qualified service technician should be employed, as special
equipment and training is required to properly service a high fidelity amplifier.
This manual contains information of great value to the repairman, and should
be kept available.
Factory Warranty Stations are maintained in most major cities. For the ad-
dress of the nearest one, or for any other information relating to your Harman-
Kardon products, write to the attention of the Customer Service Department,
Harman-Kardon, Inc., 520 Main St., Westbury, N.Y. Be sure to include the model
and serial number of the set in question. A short description of your complete
installation is often of help in answering your questions.
LIST OF REPLACEABLE PARTS
Part No. Description List Price
ZCOM2953 Fuse 10
RVCOM2569 | Balance Control | 60
RV2472952 Level Control .90
JE2202842 Electrolytic 3.00
JE2202974 Electrolytic 3.00
FT 2202784 Power Transformer 14.75
FT 2202785 Output Transformer 15.00

Harman Kardon HK20 Specifications

General

Brand	Harman Kardon
Model	HK20
Category	Amplifier
Language	English