Roland CUBE-100 BASS Service Notes page 13

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Oct.2004(Jul.2006)
fig.CB-100_test.eps
POWER LED
COMPRESSION LED
LED
1.00
1.01
POWER
o
x
COMPRESSION
x
o
SHAPE
x
x
o: Lit
x: Off
EFX LED lit: CPU NG (failure)
DELAY/REVERB LED lit: DSP NG (failure)
If there is a failure in any of these tests, the procedure does not advance to the
next test.
2. Volume Test
When a volume knob is adjusted, the DSP automatically starts to generate
tone, so if speaker is connected, the sound is output from the speaker. The
volume changes according to the knob position until reading is completed.
*
We recommend connecting headphones to the headphone jack to prevent sounds
from being output from the CUBE-100 BASS's speaker.
Press the FS-5U connected to the DELAY/REVERB jack.
All LEDs go out.
Confirm the results of the volume test as described below.
The reading of each volume is detected at four positions (in four ranges).
Check confirmation of the detected volume with the COMPRESSION and
SHAPE LEDs.
Knob Position
SELECT (Green)
(1) "0" or "OFF" or Min.
x
(2) Left Half
o
(3) Right Half
o
(4) "10" or Max.
x
o: Lit
x: Off
Rotate the volume knob slowly from the (1) to (4) positions. Confirm that the
SELECT (red) LED lights when the knob is at center position.
Reading of the volume is completed with the detection of (4).
The test proceeds in the following sequence.
COMPRESSION -> BASS -> LOW-MID -> HIGH-MID -> TREBLE -> EFX ->
DELAY/REVERB -> VOLUME -> GAIN
If a mistake is made in the testing sequence, the operation at that point is
disregarded, and only the volume adjustment knob targeted in the test is
detected.
If any volume level (1)-(4) for any knob is not detected, the procedure does not
advance to the next test.
The tone stops after testing of the last volume knob.
3. Switch Test
If there is a failure in any of these tests, the procedure does not advance to the
next test.
1.
PAD Switch Test
DELAY/REVERB LED
EFX LED
SHAPE LED
1.02
1.03
1.04
1.05
1.06
o
x
o
x
o
o
x
x
o
o
x
o
o
o
o
SELECT (Red)
x
x
o
x
Press the BRIGHT switch. If the test results in OK (pass), the POWER LED
lights.
2.
PAD Switch Test
Press the SHAPE switch. If the test results in OK (pass), the PEAK LED lights.
3.
RECORDING OUT/PHONES Jack Switch Test
Plug the headphones into the RECORDING OUT/PHONES jack. If the test
results in OK, the COMPRESSION LED lights.
4.
DELAY/REVERB Jack Switch Test
Unplug the cable connected to the FS-5U from the DELAY/REVERB jack.If the
test results in OK, the SHAPE LED lights.
5.
EFX Jack Switch Test
Unplug the cable connected to the FS-5U from the EFX jack. If the test results
in OK, the EFX LED lights.
6.
EXT SPEAKER Jack Switch Test
Plug the cable which isn't connected to anything into EXT SPEAKER jack. If
the test results in OK, the DELAY/REVERB LED lights.
After this, the COMPRESSION and SHAPE LEDs flash for one seconds, then
the COMPRESSION LED remains lit.
7.
AMP TYPE Switch Test
Slowly adjust the switch in the following sequence, and confirm the lighting
status of the COMPRESSION and SHAPE LEDs.
TYPE
COMPRESSION
SUPER FLAT
o
FLIP TOP
x
B MAN
o
T.E
x
BASS360
o
SESSION
x
CONCERT810
o
OCTAVE BASS
x
o: Lit
x: Off
This completes testing.
Turn the power off.
CB-100
SHAPE
x
o
x
o
x
o
x
o
13

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