185 • Appendix B: Maintenance Mode GX-3R Pro Operator’s Manual
Adjusting the LCD’s Contrast (LCD CONTRAST)
Higher number means darker background. Lower number means lighter background. 1-50. 20 is
factory setting.
1. While in Maintenance Mode, use AIR to place the cursor next to LCD CONTRAST.
2. Press and release POWER MODE. The current setting flashes.
3. Use AIR to display the desired setting.
4. Press and release POWER MODE to save the setting and return to Maintenance Mode.
5. See “Exiting Maintenance Mode (START MEASURE)” on page 189 to return to Measuring
Mode.
Performing a Default (M.DEFAULT)
Performing a default operation in Maintenance Mode returns all parameters to their RKI factory
settings.
1. While in Maintenance Mode, use AIR to place the cursor next to M.DEFAULT.
2. Press and release POWER MODE. The instrument asks if you want to restore all defaults.
3. Press and release POWER MODE to continue. Press and release AIR to return to
Maintenance Mode.
MAINTE 7:49
ROM / SUM
LCD CONTRAST
M.DEFAULT
MAINTENANCE
MAINTE 7:49
LCD CONTRAST
M.DEFAULT
START MEASURE
MAINTENANCE
MAINTE 7:49
RESTORE ALL ?
YES : MODE
M .DEFAULT
MAINTE 7:49
RESTORE ALL ?
NO : AIR
M .DEFAULT
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