Sherwood ASW-670 Operating Instructions Manual page 52

[TUNER SECTION]
PROBLEM
Stations cannot be • No antenna is connected.
received • The desired station frequency is not tuned in.
• The antenna is in wrong position.
Preset stations cannot be • An incorrect station frequency has been
received memorized.
• The memorized stations are cleared.
Poor FM reception • No antenna is connected.
• The antenna is not positioned for the best reception.
SPEAKER SYSTEM
[FRONT SPEAKER(ST-670)
PROBLEM
No sound • The speaker cords are disconnected.
Sound level is too low • The speaker cords are not connected correctly.
[ACTIVE SUBWOOFER(ASW-670)]
PROBLEM
No power • The AC input cord is disconnected
• Poor connection at AC wall outlet or the outlet is
inactive.
No sound even though
• The SIGNAL switch is set to the OFF position.
the POWER switch is set
to the ON position.
• The VOLUME knob is set to the MIN position.
• The connection cord is not connected correctly.
Sound level is too low.
• The volume is adjusted too low.
• A source sound with few bass frequencies is
played.
• The CROSSOVER FREQUENCY knob set to
the 50Hz position.
POSSIBLE CAUSE
POSSIBLE CAUSE
POSSIBLE CAUSE
52
REMEDY
• Connect an antenna.
• Tune in the desired station frequency.
• Move the antenna and retry tuning.
• Memorize the correct station frequency.
• Memorize the stations again.
• Connect an antenna.
• Change the position of the antenna.
REMEDY
• Check the speaker connections.
• Connect them correctly according to the channel
(left and right) and the polarity (+ and -).
REMEDY
• Connect the cord securely.
• Check the outlet using a lamp or another
appliance.
• Set the SIGNAL switch to the AUTO or ON
position.
• Turn the VOLUME knob clockwise.
• Connect it securely.
• Turn the VOLUME knob clockwise.
• Play a source sound with bass frequencies.
• Turn the CROSSOVER FREQUENCY knob
clockwise.