NCR NCR 5972 manual Servicing the VFD or LCD

Page 88

5-4 Chapter 5: Service

Servicing the VFD or LCD

If the unit still does not perform properly, you need to replace the display. Before disassembly, verify if your model has the labeling and serial numbers indicated on the rear of the cover of the display or on the bottom of the cabinet. This cover must be retained when replacing the display.

Do not replace this cabinet with a non‐serialized cover.

Caution: Be careful not to damage screw holes or cables when replacing the display.

If you are replacing the display having a serialized cover proceed as follows:

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Contents Userʹs Guide Page Safety Requirements PrefaceIntroduction Table of Contents Installation Programming Set UpService Revision Record Radio Frequency Interference Statements Federal Communications Commission FCCCanadian Department of Communications Voluntary Control Council For Interference VcciIntroduction Models FeaturesVFD Models Software LCD Models Introduction Physical Environment Working RangeStorage Environment Transit EnvironmentDimensions VFD ModelsInch Post 119 mm 356 mm 14.1 95 mm 3.75 LCD Models Electrical Environment Operational EnvironmentMounting Hole Dimensions 2x20 Customer Display Parallel Cable VFD2x20 Customer Display Serial Cable LCD Site Preparation Installing the Customer Display Selv Power Source WarningInstallation Goal Cable RequirementsPower Supply Choices Installation ProceduresRS-232 Serial Interface Micro-controller Test DiagnosticsExternal Memory Test Character VFD Only Pixel Test Firmware Part Number DisplayProgramming Set Up Host/Retail Display Command InterfaceRetail Display Commands Command Function Reset Display Format 1B Returns xx yy zzErase Display Set Diagnostic State OnFormat 1B Set Low Power State On Set Display State OnEnable Cursor Disable CursorSet Screen Save Walk Set Screen Save BlankFormat 1B 0A Enable Character Blink Disable Screen Save OptionTurn On Screen Save Disable Character Blink Move Cursor LeftMove Cursor Right Format 1B 0EMove Cursor Up Move Cursor DownMove Cursor To Specified Position Format 1B 13 nnBrightness Adjustment Read Display ID ByteFormat 1B 17 nn Range 01 ≤ nn ≤ Format 1B Returns 0x8ADisplay ESC Character Read Display ID StringSelect Character Set n Character Sets Code Page 850 International014 Programming Set Up 056 077 078 079 098 099 100 101 120 121 122 123 124 125 140 141 142 143 144 145 161 162 182 183 Programming Set Up 224 225 226 227 228 229 245 246 247 248 249 250 251 252 253 254 255 Code Page Katakana Programming Set Up Programming Set Up Programming Set Up 084 085 086 106 107 108 Programming Set Up Programming Set Up 168 169 170 190 191 192 193 210 Programming Set Up 254 Code Page 866 Cyrillic Programming Set Up Programming Set Up 072 073 074 075 076 077 084 085 086 106 107 108 128 147 148 149 150 171 172 173 174 Programming Set Up Programming Set Up 234 235 236 237 253 254 255 Programming Set Up Service Safety RequirementsService Servicing the Display Troubleshooting ProceduresNormal Operation Servicing the VFD or LCD Remove only two cabinet screws Cleaning the Display Remove power from the unit before cleaning