Test Mode - Boss GT-100 Service Notes

Mar. 2012

Test Mode

Items Required
• AC adaptor (PSB-1U(S)) x 1
• Computer (running Windows) x 1
• GT-100 driver
* Obtain this from one of the following web pages, and install it on the computer
described above.
http://www.roland.co.jp/
http://www.roland.com/
• Miniature stereo phone plug equipped with 1-kΩ load resistors (a 1-kΩ
load each between tip and sleeve and between ring and sleeve)
• 1/4-inch phone plug equipped with 47-kΩ load resistor (47-kΩ load
between tip and sleeve)
• Dummy plugs
• MIDI cable x 1
• USB cable x 1
• EV-5 x 1
• Tester x 1
• Signal generator x 1
• Noise meter x 1
• Amp-equipped monitor speakers x 2
Connections
1.
Using the MIDI cable, connect the MIDI IN connector and the MIDI OUT
connector.
2.
Using the USB cable, connect the GT-100 and the computer.
3.
Connect the EV-5 to the SUB CTL 1,2/SUB EXP connector.
* Adjust the control on the EV-5 to 0.
Entering the Test Mode
1.
Adjust the OUTPUT LEVEL knob to minimum.
2.
Hold down WRITE and PAGE
* Continue holding down WRITE and PAGE
100 appears.
After a short wait, the Test Mode starts and a display like the one shown
below appears.
fig.test-top.eps
Quitting the Test Mode
Press and hold POWER to turn off the power.
16
and press and hold POWER.
until the message BOSS GT-
Selecting Test Items
1.
Turn knob 8 to select the test item.
1. VER DEV (p. 16)
2. LED (p. 16)
3. LCD (p. 17)
4. SWITCH (p. 17)
5. 360 VR (p. 17)
6. OUTPUT VR (p. 17)
7. INTERNAL EXP (p. 17)
8. EXTERNAL EXP (p. 18)
9. AMP CONTROL (p. 18)
10. AUDIO (p. 18)
11. Factory Reset (p. 21)
2.
Press WRITE.
This switches the screen for the test items.
To return from a test-item screen to the screen in step 1 above, press
EXIT.
* When executing 1. VER DEV, then before pressing WRITE, verify again that
the MIDI and USB connections have been made. (Refer to Connections (p.
16).)
1. VER DEV
Each respective device is tested automatically, and the results are
displayed.
1.
Verify that OK is displayed to the right of each item.
* If the message PROGRAM: USER NG is displayed, a factory reset must be
executed. (Refer to Performing a Factory Reset (p. 14).)
2.
Verify that the message Pull out the USB cable is flashing at the bottom
of the screen on the left.
3.
Disconnect the USB cable.
Execution automatically advances to the next test item.
2. LED
1.
Verify that the LEDs (9) all light up, and that all dots in the LCD screens
are displayed.
2.
Press PAGE .
Execution advances to the next test item.
GT-100