Roland CUBE-STEX, Заметки по обслуживанию

Страница: 26 / 49

26
Apr. 2014 CUBE-STEX
8.
Set the
AMPLIFIER
type switch to
MIC
.
9.
Connect the signal generator to the
MIC/GUITAR INPUT
jack
(unbalanced) and input the following signals.
1-kHz sine wave at -35.0 dBm
10.
Verify that signals like the following are output from the speaker lines.
SP OUT L: +6.8 ±1.5 dBm
SP OUT R: +6.8 ±1.5 dBm
11.
Set the AMPLIFIER type switch to CLEAN .
12.
Input the following signals to the MIC/GUITAR INPU jack.
1-kHz sine wave at -20.0 dBm
13.
Verify that signals like the following are output from the speaker lines.
SP OUT L: +15.3 ±1.5 dBm
SP OUT R: +15.3 ±1.5 dBm
14.
Connect the signal generator to the
AUX IN
jack (monaural) and input the
following signals.
1-kHz sine wave at -3.0 dBm
15.
Verify that signals like the following are output from the speaker lines.
SP OUT L: +15.1 ±1.5 dBm
SP OUT R: +15.1 ±1.5 dBm
16.
Connect the i-CUBE LINK input/output tool to the i-CUBE LINK jack.
17.
Connect the signal generator to the AUDIO IN L jack on the i-CUBE
LINK input/output tool and input the following signals.
1-kHz sine wave at -6.0 dBm
18.
Verify that signals like the following are output from the speaker lines.
SP OUT L: +15.2 ±1.5 dBm
19.
Connect the signal generator to the AUDIO IN R jack on the i-CUBE
LINK input/output tool and input the following signals.
1-kHz sine wave at -6.0 dBm
20.
Verify that signals like the following are output from the speaker lines.
SP OUT R: +15.2 ±1.5 dBm
21.
Connect the signal generator to the LINE IN L/MONO jack and input the
following signals.
1-kHz sine wave at -8.0 dBm
22.
Verify that signals like the following are output from the speaker lines.
SP OUT L: +14.7 ±1.5 dBm
23.
Connect the signal generator to the LINE IN R jack and input the
following signals.
1-kHz sine wave at -8.0 dBm
24.
Verify that signals like the following are output from the speaker lines.
SP OUT R: +14.7 ±1.5 dBm
PHONES Verification
1.
Connect the noise meter and the 1/4-inch stereo phone plug with 100
Ω
load resistor to the PHONES jack.
2.
Connect the signal generator to the LINE IN L/MONO jack and input the
following signals.
1-kHz sine wave at -9.5 dBm
3.
Verify that signals like the following are output from the
PHONES
jack
(L).
PHONES L: +2.5 ±1.5 dBm
4.
Connect the signal generator to the LINE IN R jack and input the
following signals.
1-kHz sine wave at -9.5 dBm
5.
Verify that signals like the following are output from the
PHONES
jack
(R).
PHONES R: +2.5 ±1.5 dBm
LINE OUT Verification
1.
Connect the noise meter and the 1/4-inch phone plug with 47 k
Ω
load
resister to the LINE OUT L/MONO jack.
2.
Connect the signal generator to the LINE IN L/MONO jack and input the
following signals.
1-kHz sine wave at +2.5 dBm
3.
Verify that signals like the following are output from the
LINE OUT L/
MONO
jacks.
LINE OUT L/MONO: +8.0 ±1.5 dBm
4.
Connect the 1/4-inch phone plug with 47 k
Ω
load resister to the LINE
OUT R jack.
5.
Connect the signal generator to the LINE IN R jack and input the
following signals.
1-kHz sine wave at -2.5 dBm
6.
Verify that signals like the following are output from the
LINE OUT R
jack.
LINE OUT R: +8.0 ±1.5 dBm
i-CUBE LINK Verification
1.
Connect the noise meter to the i-CUBE LINK OUT jack (with 1 k
Ω
load
resistor) on the i-CUBE LINK input/output tool.
2.
Connect the signal generator to the LINE IN L/MONO jack and input the
following signals.
1-kHz sine wave at -19.0 dBm
3.
Verify that signals like the following are output from the i-CUBE LINK
OUT jack on the i-CUBE LINK input/output tool.
i-CUBE LINK: -45.5 ±1.5 dBm