Adcom GTP-830 owner manual Troubleshooting, Problem, Cause, Solution

TROUBLESHOOTING

PROBLEM	CAUSE	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
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
		mode (large or small)
	speaker selected
		• Check speaker and connection
	• Speaker not connected properly
		• Increase center volume level
	• Center volume level set too low
“Dolby Digital” OR “DTS” auto-	• Source not connected using	• Connect digital output of source
detection function does not work	digital input	to GTP-830
Weak bass/Diffuse stereo image	• Speakers wired out of phase	• Check connections to all
		speakers in the system
Remote control handset not	• Batteries dead, or incorrectly	• Check or replace batteries
working	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
		preamplifier
	connected
		• Re-tune or switch off FM Mute
	• Station not selected or weak
	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
		or move the source of the
	electrical sources - computers,
		electrical noise
	games consoles
Whistles or buzzes on AM	• Interference from fluorescent	• Check station tuning. Adjust or
	lighting or electrical motor	replace AM antenna
	• Station signal too weak.	• Check station tuning. Adjust or
No RDS name (PS)		replace antenna
	• Station not transmitting RDS data
		• No remedy