Service Manual
Page 17
1-2.Trouble Shooting CAUSE CHECK POINT CHECK ITEM Power is not on 1.Power supply is NG 16 Power supply connected well. 2.No light on orange MAIN PCB display MXIC Pattern (See1-1) Camera DSP display Test Pattern (See1-1) Display with +3.3V Standby mode couldn't be powered on Display is abnormal "ON/Standby"...B. Keypad PCB connection with waved line Flicker Switch FLICKER SW (50/60 Hz) MAIN PCB display MXIC Pattern (See1-1) Camera DSP display Test Pattern (See1-1) JUDGE (NG) =>Power supply is NG (OK) =>Check next step (NG) =>KEYPAD PCB or Cable1 (2-1) is NG (OK) =>MAIN PCB...
1-2.Trouble Shooting CAUSE CHECK POINT CHECK ITEM Power is not on 1.Power supply is NG 16 Power supply connected well. 2.No light on orange MAIN PCB display MXIC Pattern (See1-1) Camera DSP display Test Pattern (See1-1) Display with +3.3V Standby mode couldn't be powered on Display is abnormal "ON/Standby"...B. Keypad PCB connection with waved line Flicker Switch FLICKER SW (50/60 Hz) MAIN PCB display MXIC Pattern (See1-1) Camera DSP display Test Pattern (See1-1) JUDGE (NG) =>Power supply is NG (OK) =>Check next step (NG) =>KEYPAD PCB or Cable1 (2-1) is NG (OK) =>MAIN PCB...