Adcom GTP-860II manual Symptom

SYMPTOM	POSSIBLE REASON	POSSIBLE SOLUTION
No sound	• Power AC lead unplugged or	• Check if AC lead is plugged in
	power not switched on	and power switched on
	• Tape Monitor selected	• De-select Tape Monitor mode
	• Mute on	• Switch off Mute
	• Power Amplifier not on	• Turn on the Power Amplifier
No sound on one channel	• Speaker not properly connected	• Check connections and speakers
	or damaged.	• Check leads and connections
	• Input lead disconnected or	• Select appropriate Surround
	damaged	mode (large or small)
	• In Setup “OFF” for surround
	speaker selected
No sound on surround channels	• No surround mode selected	• Select a Surround Mode
	• Mono sound source	• Test system with Stereo or
	• Speakers not properly	Dolby Surround material
	connected	• Check speakers and connections
	• Surround volume level too low	• Increase surround volume level
No sound on center channel	• In Setup “OFF” for center	• Select appropriate Center
	speaker selected	mode (large or small)
	• Speaker not connected properly	• Check speaker and connection
	• Center volume level set too low	• Increase center volume level
“Dolby Digital” OR “DTS” auto-	• Source not connected using	• Connect digital output of source
detection function does not work	digital input	to GTP-860II
	• Bit Stream is PCM	• Check source material
Weak bass/Diffuse stereo image	• Speakers wired out of phase	• Check connections to all
		speakers in the system
Remote control handset not working	• Batteries dead, or incorrectly	• Check or replace batteries
	inserted	• Remove obstruction
	• IR transmitter or receiver	• Place unit away from direct sun,
	windows obstructed	reduce amount of ambient light
	• IR receiver in direct sun or very
	bright ambient light
No sound with tuner	• Antenna leads incorrectly	• Check antenna connections to
	connected	preamplifier
	• Station not selected or weak	• Re-tune or switch off FM Mute
	signal with FM Mute on.
Noise, hiss on AM and FM	• Weak signal	• Check station tuning. Adjust or
		replace antenna.
Distortion on FM	• Multi-path signals or interfe-	• Check station tuning. Adjust or
	ence from another station	replace antenna
Whistles or buzzes on FM & AM	• Interference from other	• Check station tuning. Switch off
	electrical sources - computers,	or move the source of the
	games consoles	electrical noise
Whistles or buzzes on AM	• Interference from fluorescent	• Check station tuning. Adjust or
	lighting or electrical motor	replace AM antenna
No RDS name (PS)	• Station signal too weak.	• Check station tuning. Adjust or
	• Station not transmitting RDS data	replace antenna
		• No remedy

ADCOM GTP-860 II Owner’s Manual 27