How To Check Fault Symptom; No Power - Samsung T19C301 Series Service Manual

4. Troubleshooting 4. Troubleshooting

4-2. How to check fault symptom

4-2-1. No Power

The LED on the front panel of the monitor does not work when the power is connected and the Power
Symptom
button is pressed.
• Check if the Power switch on the rear panel of the monitor has been turned on.
Major • Check the output power of power adapter.
checkpoints
• Check the power part of the Main Board and check if a similar symptom appears at another output
terminal.
Diagnostics
Caution Make sure to disconnect the power before working on the Main board.
4-2 4-2
Power indicator LED on?
Yes
Check 'A14V_PW' DC14V appear at
CN1601_AD?
Yes
Check 'Power input of Main Assy ?
DC B5.3V appear at BD215?
Yes
Check 'Power of main IC(B1.15V)'?
Yes
Please, Contact tech support.
No Check an AC power connection.
No
Change Adapter.
No
No Change the Main Assy.