Harman Kardon PM655 - Troubleshooting Common Issues; Power and Sound Output Problems; Tone Control and Stereo Imaging; Turntable Noise and Hum

Most of the problems consumers have with their high fidelity
system are due to incorrect operation. If this unit does not
following checklist. Also check other related components
such as the tuner, turntable, speakers and other electrical
operate as you intended, first
check the items in the
equipment you use with this amplifier.
Problem | Cause | Remedy |
The POWER indicator does not
light up when the POWER
switch is pressed.
eThe power cord is not plugged tn.
The POWER indicator lights up,
but no sound is heard.
=
eThe TAPE MONITOR selector is in the
“tape 1° or “tape 2” position.
eThe FUNCTION selection was not made
properly.
eThe SPEAKER selector is in the “off”
position.
The PRE-OUT/MAIN-IN switch is pressed
to the “separate” position.
eThe speaker wires are disconnected or
broken.
Sound is not heard from the
speaker system on one side.
Tone control is not functioning.
a nl
When listening to stereo sound,
the left and right sounds are
reversed.
—
eThe connection of a speaker wires are
incorrect or incomplete.
The connection wires to other equip-
ment are disconnected.
The BALANCE control knob ts turned
to either the extreme right or the left
position.
pe
eThe TONE DEFEAT switch is depressed.
eThe left and right speaker wires are
reversed.
eThe left and right wires connected to
other equipment are reversed.
_|_-
When playing to a turntable, a
low-pitched noise (“hum” or
“buzz") is heard.
eThe ground wire of the turntable !s
disconnected.
eThe connections of the turntable wires
are incorrect or incomplete.
eh
ePlug in the power cord securely.
eSet the TAPE MONITOR selector to the
“source” position.
eSet the FUNCTION selector to the proper
position for the desired program source.
eSet the SPEAKER selector to the posi-
tion of your desired speaker system(s).
eRelease the PRE-OUT/MAIN-IN switch
to the “integrated” position.
eCheck the speaker wires and connect
them correctly.
eCheck the speaker wires for disconnec-
tion or breaking and reconnect them
correctly.
eCheck the wires for disconnection and
connect them correctly.
eSet the mark on the BALANCE control
knob to the centre position.
eRepress the TONE DEFEAT switch (but-
ton out).
eCheck the speaker wires and connect
them correctly.
eCheck the wires to other equipment
and connect them correctly.
eMake the ground wire connection cor-
rectly.
elnsert the turntable wires into
PHONO jacks of this unit securely.
the