Roland RS-5 Service Notes page 14

RS-5
8 : Keyboard Test
• Hit all the keys and check that they all generate sound.
Also check that the volume changes depending on how hard
you hit them.
• Pressing [ENTER] changes the tone from PIANO to ORGAN.
Hit all the keys and check that they all generate sound.
• Pressing [ENTER] restores the tone to PIANO.
Repressing [ENTER] proceeds to the next test.
• Check the following when the sound is incorrect.
The keyboard and its connector
MAIN BOARD CN3, CN5, IC27, RA19~20, RA35
9 : Sound Test 1
Check OUTPUT and headphones.
Connect a monitor speaker and headphones and then test.
• A F4 sawtooth wave (about 349Hz) is output from OUTPUT L
and the left headphone.
Check the speakers and headphones for tone.
Check if no sounds are output from OUTPUT R.
* Connect an audio cable to both OUTPUT L and R.
• Pressing [ENTER] proceeds to the next test.
• A F5 sawtooth (about 698Hz) is output from OUTPUT R and
the right headphone.
Check the speakers and headphones for tone.
Check if no sounds are output from OUTPUT L.
* Connect an audio cable to both OUTPUT L and R.
• Pressing [ENTER] proceeds to the next test.
• A F4 sawtooth wave is output from OUTPUT L and the left
headphone and F5 sawtooth wave from OUTPUT R and the
right headphone.
Check if sounds are output from both sides.
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• Then remove the audio cable from OUTPUT R and check if
two sawtooth waves, F4 and F5, are output from OUTPUT
L.(Check L MONO)
• Pressing [ENTER] proceeds to the next test.
• When the sound is not output properly, check the following
places.
No sound is output : MAIN BOARD IC22, IC24, Q6~8,
R71, R74, R77, R80, R94~98,
R153~154, CN2
PANEL A BOARD IC3,VR7,CN2
OUTPUT L & headphone L : MAIN BOARD IC21, IC22, C95,
C98~101, R78, R81~82, R84, CN2
PANEL A BOARD IC3, VR7,
C11~13, R25~26, CN2
OUTPUT R & headphone R : MAIN BOARD IC21, IC22, C103,
C106~109, R90~93, CN2
PANEL A BOARD IC3, VR7,
C16~18, R29~30, CN2
Headphone L & R : MAIN BOARD IC18,JK3
Headphone L : MAIN BOARD IC18, R52, R61, R63,
R87, R146, C81, C233, C236, Q27,
L9, JK3
Headphone R: MAIN BOARD IC18, R53, R58,
R59, R75, R148, C85, C232, C234,
Q28, L10, JK3
OUTPUT L : MAIN BOARD C90, Q4, R79,
R155~158, L11, JK4
OUTPUT R : MAIN BOARD C102, Q5, R89,
R159~162, L12, JK5
10 : Factory Resetting
• Pressing [ENTER] runs the factory reset function.
• Pressing [EXIT] returns to the title screen of the test mode
without running it.
* Factory resetting must be performed at the end of the test
mode.
• The following screen will be displayed during factory
resetting. Never turn off the power when this screen is on.
• After factory resetting, the FLASH ROM (USER MEMORY)
will be checked. If no abnormal condition occurs, the
following screen will be displayed. End the test mode by
turning the power off.
Jan. 2001