17
Sep. 2016
GT-1
Test Items
8. INTERNAL EXP1 (CALIBRATION)
* Test items
6
,
11
,
13
,
15
, and
16
are not required at the service.
Entering the Test Mode
1.
Connect the AC adaptor and hold down
PREAMP
,
REVERB
and
MEMORY EDIT
and connect a 1/4-inch mono phone plug into the
INPUT
jack.
(p. 17), connect the AC adaptor using the current-
consumption measurement tool.
(p. 19), connect a 1/4-inch mono phone plug with 47 kΩ
load resistor to the
INPUT
jack. Other test items can be carried out by the
dummy plug.
2.
When the BOSS logo appears on the display, release your fingers.
Entering the Test Mode displays the
TEST MENU
.
fig.test-0.eps
Selecting Test Items
In the
TEST MENU
, turn the knob (
1
,
2
or
3
; whatever possible) to select
a test item and press
ENTER
.
To return to the
TEST MENU
, press
EXIT
.
* It is impossible to return from
to the
TEST MENU
until all
buttons have been pressed.
Quitting the Test Mode
Disconnect the plug from the
INPUT
jack to switch off the power.
1. VERSION
This verifies the version.
1.
In the
TEST MENU
, select
1. VERSION
and press
ENTER
.
Version information is displayed under the
VER
text at the top left of the
screen.
* Ignore other displays.
2.
Press
EXIT
to return to the
TEST MENU
.
2. DEVICE
This verifies the operation of each device.
1.
Connect the computer to the
USB COMPUTER
connector.
2.
In the
TEST MENU
, select
2. DEVICE
and press
ENTER
.
Each device is checked automatically, and if no problems are found,
Pull
out the USB cable.
appears.
fig.test-2.eps
3.
Disconnect the USB cable.
4.
Press
EXIT
to return to the
TEST MENU
.
3. CURRENT
This measures the current consumption.
1.
Use the current-consumption measurement tool to connect the AC
adaptor.
2.
Enter the Test Mode, select
3. CURRENT
in the
TEST MENU
and press
ENTER
.
3.
Verify that the current-consumption is from
165
to
195 mA
.
4.
Press
EXIT
to return to the
TEST MENU
.
Summary of Contents for GT-1
Page 21: ...21 Sep 2016 GT 1 ...
Page 22: ...22 Sep 2016 GT 1 Circuit Board Main Exp Pedal Board fig b main 1 eps ...
Page 23: ...23 Sep 2016 GT 1 fig b main 2 eps ...
Page 24: ...24 Sep 2016 GT 1 Circuit Diagram Main Board 1 3 fig d main 1 eps L ...
Page 25: ...25 Sep 2016 GT 1 fig d main 1 eps R ...
Page 26: ...26 Sep 2016 GT 1 Circuit Diagram Main Board 2 3 fig d main 2 eps L ...
Page 27: ...27 Sep 2016 GT 1 fig d main 2 eps R ...
Page 28: ...28 Sep 2016 GT 1 Circuit Diagram Main Exp Pedal Board 3 3 fig d main 3 eps L ...
