Polk Audio CHT400 manual No sound, No surround sound effect, Dialogue hard to hear, Or understand

SYMPTOM	DIAGNOSIS	REMEDY
No sound	Receiver “off,” or in standby mode;	Turn on receiver; select appropriate source,
	selected source not active, volume	turn up volume, unmute; check wiring.
	low or system muted; speaker wires
	and/or component interconnect cables
	not connected properly.
No surround sound effect	No surround content in program material;	Enable surround sound processing: use
	two channel source and receiver set to	PLII or PLIIx for stereo program material
	stereo; surround sound processing disabled;	(note that some programs will not have
	surround channel volume settings too low.	any stereo or surround effects); check
		surround channel levels in receiver’s
		setup menu and increase if appropriate.
Dialogue hard to hear	Center channel not wired properly; poor	Check wiring; check center channel level
or understand	audio mix; center channel level too low;	in receiver’s setup menu and increase if
	improper placement; poor room acoustics.	appropriate; speaker may be obstructed
		by furniture. Move speaker so that it’s
		not “buried” in a cabinet, must have
		a direct line of sight to listening area.
No bass or not	Subwoofer turned off; sub volume too low;	Turn on subwoofer; turn up subwoofer
enough bass	bad/disconnected wire; subwoofer disabled	volume; replace/connect wire; in receiver’s
	in receiver’s loudspeaker configuration menu.	speaker configuration menu, check to make
		sure subwoofer is enabled (if applicable).
Voices sound boomy,	Subwoofer volume too high; sub crossover	Turn down subwoofer volume; reduce
chesty and unnatural	(low-pass filter) set too high; subwoofer	crossover frequency setting on receiver;
	phase setting not optimal.	change subwoofer polarity; move sub-
		woofer closer to SurroundBar and/or
		away from corner.
No sound from one	Poor connections to receiver and/or	Check speaker wiring connections from
or more channels	SurroundBar 500 CHT SDA Control	the receiver to the SurroundBar 400 CHT
	Module; poor connections to	or the SurroundBar 500 CHT SDA Control
	SurroundBar 400 CHT bar.	Module; verify that all channels are playing
		properly by using receiver’sspeaker test
		tone calibration facility in setup menu.
Harsh, distorted sound	Speaker overdriven at low frequencies;	Choose “small” speaker under speaker
at very high volume	system has reached its maximum capacity.	setup and set crossover frequency to
		150Hz or higher.
Voices, music sound thin,	Speaker cable polarity incorrect; inappropriate	Check speaker wiring; select another
lack body, sounds unnatural,	surround processing or surround channel	surround sound mode; reduce surround
“phasey” or sound is incoherent	levels set too high; speaker damaged.	channel levels. Repair speaker.
Receiver clicks off	Short circuit	Receiver not compatible with SurroundBar.

14 Polk Audio Customer Service 800-377-7655 (Outside USA & Canada: 410-358-3600)