Symptom:
When you replace the main board, the replacement mainboard may have a serial number already entered. This serial number is invalid and must be replaced with the serial number from the label on the back of the TV.
SUBJECT:
Take Notice When Replacing the Main Board
PRODUCT:
LED TV
BULLETIN NUMBER:
ASC20190204001
CREATE DATE:
02/04/2019
REVISION DATE:
MODELS:
UN50M5300AFXZA, UN49M5300AFXZA, UN43M5300AFXZA, UN40M5300AFXZA, UN32M5300AFXZA, UN50M530DAFXZA, UN49M530DAFXZA, UN43M530DAFXZA, UN40M530DAFXZA, UN32M530DAFXZA, UN32M4500AFXZA, UN28M4500AFXZA, UN24M4500AFXZA, UN32M450DAFXZA, UN28M450DAFXZA, UN24M450DAFXZA, UN75MU9000FXZA, UN65MU9000FXZA, UN55MU9000FXZA, UN75MU900DFXZA, UN65MU900DFXZA, UN55MU900DFXZA, UN65MU8500FXZA, UN55MU8500FXZA, UN65MU850DFXZA, UN55MU850DFXZA, UN82MU8000FXZA, UN75MU8000FXZA, UN65MU8000FXZA, UN55MU8000FXZA, UN49MU8000FXZA, UN82MU800DFXZA, UN75MU800DFXZA, UN65MU800DFXZA, UN55MU800DFXZA, UN49MU800DFXZA, UN65MU7600FXZA, UN55MU7600FXZA, UN49MU7600FXZA, UN65MU7500FXZA, UN55MU7500FXZA, UN49MU7500FXZA, UN65MU750DFXZA, UN55MU750DFXZA, UN49MU750DFXZA, UN65MU7100FXZA, UN55MU7100FXZA, UN49MU7100FXZA, UN40MU7100FXZA, UN65MU7000FXZA, UN55MU7000FXZA, UN49MU7000FXZA, UN40MU7000FXZA, UN65MU700DFXZA, UN55MU700DFXZA, UN49MU700DFXZA, UN40MU700DFXZA, UN65MU6500FXZA, UN55MU6500FXZA, UN49MU6500FXZA, UN65MU650DFXZA, UN55MU650DFXZA, UN49MU650DFXZA, UN65MU6490FXZA, UN55MU6490FXZA, UN49MU6490FXZA, UN75MU6300FXZA, UN65MU6300FXZA, UN55MU6300FXZA, UN50MU6300FXZA, UN49MU6300FXZA, UN43MU6300FXZA, UN40MU6300FXZA, UN75MU630DFXZA, UN65MU630DFXZA, UN55MU630DFXZA, UN50MU630DFXZA, UN49MU630DFXZA, UN43MU630DFXZA, UN40MU630DFXZA, UN75MU6290FXZA, UN65MU6290FXZA, UN55MU6290FXZA, UN50MU6290FXZA, UN49MU6290FXZA, UN43MU6290FXZA, UN40MU6290FXZA, UN75MU629DFXZA, UN58MU6100FXZA, UN58MU6071FXZA, UN55MU6071FXZA, UN75MU6070FXZA, UN65MU6070FXZA, UN58MU6070FXZA, UN50MU6070FXZA, QN88Q9FAMFXZA, QN75Q9FAMFXZA, QN65Q9FAMFXZA, QN75Q8CAMFXZA, QN65Q8CAMFXZA, QN55Q8CAMFXZA, QN65Q7CAMFXZA, QN55Q7CAMFXZA, QN65Q7CDMFXZA, QN55Q7CDMFXZA, QN75Q75FMFXZA, QN55Q75FMFXZA, QN75Q7FAMFXZA, QN65Q7FAMFXZA, QN55Q7FAMFXZA, QN75Q7FDMFXZA, QN65Q7FDMFXZA, QN55Q7FDMFXZA, QN65Q7FVMFXZA, QN55Q7FVMFXZA, QN55Q6FAMFXZA, QN49Q6FAMFXZA, QN55Q65FMFXZA, UN65MU6290VXZA, UN43LS003AFXZA, UN55LS003AFXZA, UN65LS003AFXZA
2
Solution:
After replacing the main board, turn on the TV and go to Settings > Support > About This TV. If a serial number exists, follow the instructions below to enter the correct serial number. If the serial number is blank, do not enter a serial number and complete the repair.
How to Enter the Correct Serial Number:
1. Take a picture of the serial number on the label on the back of TV.
2. Enter the Factory Menu by using a factory remote or a standard IR remote (Mute-182-Power).
3. Select SVC > S/N > Writing S/N.
