Radio Shack LK-1261 owner manual Technical Reference, Troubleshooting, Cause Action See

Technical Reference

Troubleshooting

Be sure to check the following table whenever you experience problems with keyboard operation.

Symptom		Cause		Action			See Page
• No sound when keyboard keys	1.	Power supply problem.	1.	Correctly	attach the	AC	Page E-12
are pressed.				adaptor,	make sure	that
				batteries (+/–) are facing
				correctly, and check to make
				sure that batteries are not dead.
	2.	Volume setting is too low.	2.	Use the MAIN VOL slider to			Page E-15
				increase volume.
	3.	Headphones are plugged into	3.	Unplug the headphones from			Page E-14
		the keyboard.		the PHONES/OUTPUT jack.
	4.	The POWER/MODE selector is	4.	Normal play is not possible on			Page E-18
		in the CONCERT CHORD or		the accompaniment keyboard
		FINGERED position.		while the POWER/MODE
				selector is set to CONCERT
				C H O R D o r F I N G E R E D .
				Change the POWER/MODE
				selector setting to NORMAL.
	5.	Tone “99 PERCUSSION” is	5.	While “99 PERCUSSION” is			Page E-16
		selected and you are pressing		selected, you can use only keys
		keys that are not assigned tones.		that are marked on the console
				with illustrations of percussion
				instruments.
	6.	LOCAL CONTROL is off.	6.	Turn on LOCAL CONTROL.			Page E-31
• Any of the following symptoms	• Low battery power		• Replace the batteries with a set				Page E-12
while using battery power.				of new ones or use the AC
				adaptor.

•Dim power indicator.

•Instrument does not turn on.

•Display that is flickering, dim, or difficult to read.

•Abnormally low speaker/headphone volume.

•Distortion of sound output.

•Occasional interruption of sound when playing at high volume.

•Sudden power failure when playing at high volume.

•Flickering or dimming of the display when playing at high volume.

•Continued sound output even after you release a key.

•A tone that is totally different from the one that is selected.

•Abnormal rhythm pattern and song play.

•Loss of power, sound distortion, or low volume when playing from a connected computer or MIDI device.

•Abnormally low microphone volume.

•Distortion of microphone input.

•Dim power supply indicator when a microphone is used.

• Key light stays on.	• Keyboard is waiting for play of	1.	Press the lit key to continue with	Pages
	the correct note during Step 1		Step 1 or Step 2 play.	E-26, 27
	or Step 2 play.	2.	Press the START/STOP button	Pages
			to quit Step 1 or Step 2 play.	E-26, 27

E-32 648U-E-034A

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