Trouble Shooting; Specifications - ROCK JAM RJ549 User Manual

Trouble Shooting

Problem
A faint noise is heard when turning the power on or
off.
After turning the power on to the keyboard there
was no sound when the keys were pressed.
Sound is distorted or interrupted and the keyboard
is not working properly.
There is a slight difference in timbre of some notes.
When using the sustain function some tones have
long sustain and some short sustain.
In SYNC status the auto accompaniment does not
work.

Specifications

Tones
Rhythms
Demos
Effect and Control
Recording and Program-
ming
Percussion
Accompaniment Control
External Jacks
Range of Keyboard
Weight
Power Adapter
Output Power
Accessories included
Possible Reason / Solution
This is normal and nothing to worry about.
Check the volume is set to the correct setting. Check that
headphones or any other equipment are not plugged into
the keyboard as these will cause the built-in speaker system
to cut off automatically.
Use of incorrect power adapter, or the batteries may need
replacing. Use the power adapter supplied.
This is normal and is caused by the many different tone
sampling ranges of the keyboard.
This is normal. The best length of sustain for different tones
has been pre-set.
Check to make sure that Chord mode has been selected
and then play a note from the first 19 keys on the left hand
side of the keyboard.
10 tones
10 rhythms
8 different demo songs
Sustain, Vibrato.
43 Note record memory, Playback, 32
Beat rhythm programming
8 different instruments
Sync, Fill-in, Tempo
Power input, Headphone output
49 C2 - C6
1.66 kg
C 1 <EE $
4W x 2
Power adapter, User guide. Sheet music stand
13