Sony FS-2570, FS-1570 Simple Troubleshooting, Error Messages, 12-5, Problem Probable cause Remedy

12 MAINTENANCE & TROUBLESHOOTING

12.6 Simple Troubleshooting

The table below provides common problems and the means with which to restore normal operation. If normal operation cannot be restored, do not attempt to check inside the equipment. Any servicing should be referred to a qualified technician.

Problem		Probable cause		Remedy
Power cannot be	•	Mains switchboard may be	•	Turn on the mains switchboard.
turned on.		off.
	•	(DC) voltage is too high.	•	Check supply voltage.
	•	Battery may have	•	Recharge battery and tighten battery
		discharged, or poor contact		terminals.
		at terminals.
Display	•	Contrast is too low.	•	Operate the [9/		] key to adjust
indications do				contrast.
not appear but
key lamps are lit.
Power is on but	•	Loudspeaker is off.	•	Operate the [7/	] key to turn on the
no sound from				loudspeaker.
loudspeaker.
Poor articulation	•	Wrong class of emission	•	Class of emission should match that of
		may be in use.		incoming signal.
Output power	•	Power is automatically	•	Wait until the unit returns to normal
reduced to LOW		reduced to protect against		condition.
		overheating due to
		continuous transmission.
Antenna coupler	•	Antenna may be	•	Check antenna connection.
cannot tune		disconnected or shorted to
antenna		ground.
	•	Antenna is out of tunable	•	Recommended length is 7 to 30
		length.		meters.
	•	Poor grounding of antenna	•	Check coupler ground.
		coupler.
	• Breaker in coupler has		• Checks mains voltage and polarity. If
		tripped.
				normal, reset breaker.
	•	Connection cable loosened
			•	Check cable.
		or disconnected.

12.7 Error Messages

The table below shows error messages and their meanings.

Error messages

Error message	Meaning	Remedy
Busy: RT	Radiotelephone is in	Wait until the radiotelephone is free.
	operation.
Channel Busy	You attempted to transmit on	The message is automatically erased
	a channel which is currently	when the channel becomes clear.
	busy. (This occurs with
		12-5

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