21
Mar. 2008
GT-10
6.
Verify that the output waveform display on the oscilloscope is what is
shown in the figure below, and that no sound is played while
MUTE
is
displayed on the screen.
fig.12out-out2.eps
7.
Verify that the previous waveform display reappears when the plug is
reinserted into the
OUTPUT R
jack.
OUTPUT -10 dB/+4 dB Switching Test
1.
Using the two cables with 1/4-inch phone plugs, connect the
OUTPUT L
and
R
jacks to channel 1 and channel 2 of the oscilloscope and to the left-
channel and right-channel monitor speakers.
2.
Verify that the on-screen display of
-10 dB
changes to
+4 dB
when the 1/
4-inch stereo phone plug is unplugged from the
PHONES
jack.
3.
Verify that the output waveform display on the oscilloscope is what is
shown in the figure below, and that no waveform is displayed while
MUTE
is displayed on the screen.
fig.12out-out4.eps
Upper: left channel, lower: right channel
4.
Verify that the peak value for both the left and right channels is
1.55
to
1.75 V
(substantially the same as before the plug was unplugged from the
PHONES
jack).
5.
Verify that signals are output from the monitor speakers and no noise or
other abnormal sound is heard, and that no sound is played while
MUTE
is displayed on the screen.
6.
Press [
] to advance to the next test.
13. INPUT
Testing of the INPUT Circuitry
fig.13input2.eps
1.
Using the two cables with 1/4-inch phone plugs, connect the
OUTPUT L
and
R
jacks to channel 1 and channel 2 of the oscilloscope and to the left-
channel and right-channel monitor speakers.
2.
Using a cable with a 1/4-inch phone plug, connect the
SEND
jack and the
INPUT
jack.
3.
Verify that the output waveform display on the oscilloscope is what is
shown in the figure below.
fig.13input.eps
Upper: left channel, lower: right channel
4.
Verify that the peak value is from
0.65
to
0.80 V
for the left channel and
from
0.55
to
0.65 V
for the right channel.
5.
Verify that signals are output from the monitor speakers and no noise or
other abnormal sound is heard.
6.
Press [
] to advance to the next test.
Summary of Contents for Boss GT-10
Page 4: ...4 Mar 2008 GT 10 Location of Controls fig panel GT 10 eps...
Page 6: ...6 Mar 2008 GT 10 Exploded View fig bunkai eps L...
Page 7: ...7 Mar 2008 GT 10 fig bunkai eps R...
Page 11: ...11 Mar 2008 GT 10 fig block wiring eps R...
Page 24: ...24 Mar 2008 GT 10 Circuit Board Main Board fig b main 1 eps...
Page 25: ...25 Mar 2008 GT 10 fig b main 2 eps...
Page 26: ...26 Mar 2008 GT 10 Circuit Diagram Main Board 1 5 fig d main 1 eps L...
Page 27: ...27 Mar 2008 GT 10 fig d main 1 eps R...
Page 28: ...28 Mar 2008 GT 10 Circuit Diagram Main Board 2 5 fig d main 2 eps L...
Page 29: ...29 Mar 2008 GT 10 fig d main 2 eps R...
Page 30: ...30 Mar 2008 GT 10 Circuit Diagram Main Board 3 5 fig d main 3 e eps L...
Page 32: ...32 Mar 2008 GT 10 Circuit Diagram Main Board 4 5 fig d main 4 eps L...
Page 33: ...33 Mar 2008 GT 10 fig d main 4 eps R...
Page 34: ...34 Mar 2008 GT 10 Circuit Diagram Main Board 5 5 fig d main 5 eps L...
Page 35: ...35 Mar 2008 GT 10 fig d main 5 eps R...
Page 36: ...36 Mar 2008 GT 10 Circuit Board SW VR Pedal Bank ENC EXP Board fig b sw 1 eps...
Page 37: ...37 Mar 2008 GT 10 fig b sw 2 eps...
Page 38: ...38 Mar 2008 GT 10 Circuit Diagram SW VR Board fig d sw vr eps L...
Page 39: ...39 Mar 2008 GT 10 fig d sw vr eps R...
Page 40: ...40 Mar 2008 GT 10 Circuit Diagram Pedal Board fig d pedal eps L...
Page 41: ...41 Mar 2008 GT 10 fig d pedal eps R...
Page 44: ...MEMO Mar 2008 GT 10...
