10. MAINTENANCE, TROUBLESHOOTING
10-6
4. Press the NU/CU ENT key. Each press of this key changes the LCD pattern in the
sequence shown below.
Note: You can cancel the test at any time by pressing the MENU/ESC key.
5. Press the MENU/ESC key to close the test pattern window.
Automatic test
The memory, keyboard and LCD tests are automatically tested.
1. Press the MENU/ESC key to open the main menu.
2. Select [6 Maintenance] then [2 Self Test].
3. Select [4 Automatic Test]. The GP-170 automatically repeats the following se-
quence.
Information screen (refer to section 10.4) →Memory → Keyboard → LCD
Note 1: You can cancel the test at any time by pressing the MENU/ESC key.
Note 2: The test stops if the check result for an item other than [Data3] is "NG" or
"– –".
4. Press the MENU/ESC key to close the automatic test window.
10.6 Backup
The GP-170 can save or load the settings and registered data.
1. Set a USB flash memory in the USB port.
Note 1: Do not use an encrypted USB flash memory.
Note 2: Keep water away from the unit when the USB flash memory is inserted.
The USB port is not waterproof while its cover is removed.
2. Press the MENU/ESC key to open the main menu.
3. Select [6 Maintenance] then [3 Backup].
Black
White
Red
Green
Blue
Checker board
Operation instructions
display
RGB gradation
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