Roland ME-80

22
Jan. 2014 ME-80
5. Verify that the output value is between 4.9 and 5.2 Vp-p.
fig.test5-3.eps
6. Connect the oscilloscope to the REC OUT/PHONES jack.
7. Depress the pedal 2.
The 2 LED lights up.
8. Verify that the output value is between 4.9 and 5.2 Vp-p.
fig.test5-4.eps
9. Press CTL.
The DELAY LED lights up.
10. Verify that the output value is between 4.9 and 5.2 Vp-p.
fig.test5-5.eps
DA Residual Noise Check
1. Connect the noise meter to the Gt. AMP OUTPUT L/MONO and R jacks.
2. Depress the pedal 1.
The 1 LED lights up.
3. Verify that the noise-meter value is -58 dBm or less (DIN audio).
4. Connect the noise meter to the REC OUT/PHONES jack.
5. Verify that the noise-meter value is -58 dBm -90dBm or less (DIN audio).
A/D Check
1. Make the settings shown below on the oscillator and connect it for input
to the GUITAR INPUT jack.
200-Hz sine wave at 2.0 Vp-p
2. Make the settings shown below on the oscilloscope and connect it to the
Gt. AMP OUTPUT L/MONO and R jacks.
ch1: 1.00 V/div, ch2: 1.00 V/div, TIME: 1.00 ms/div
3. Press EDIT.
The PEDAL FX LED lights up.
4. Verify that the output value is between 1.9 and 2.1 Vp-p.
fig.test5-6.eps
5. Make the settings shown below on the oscillator and connect it for input
to the GUITAR INPUT jack.
200-Hz sine wave at 50 mVp-p
6. Make the settings shown below on the oscilloscope and connect it to the
Gt. AMP OUTPUT L/MONO and R jacks.
ch1: 2.00 V/div, ch2: 2.00 V/div, TIME: 1.00 ms/div
7. Depress the pedal 3.
The 3 LED lights up.
8. Verify that the output value is between 4.2 and 4.6 Vp-p.
fig.test5-7.eps
AD Residual Noise Check and Impact-
shock Noise Check
1. Connect the noise meter to the Gt. AMP OUTPUT L/MONO and R jacks.
2. Insert a 47-kΩ short plug into the GUITAR INPUT jack.
3. Depress the pedal 3 and verify that the noise-meter value is -58 dBm
(DIN-AUDIO).
4. Connect the monitor speakers to the Gt. AMP OUTPUT L/MONO and R
jacks.
5. Verify that no abnormal noise is heard even when vibration is applied.