Panasonic TX-P46G20B - four blinks

[tntoz]

Hello,

Can anyone please help me diagnose and possible repair my old Panasonic plasma TV.
I would appreciate if you can share steps or alternatively troubleshoot handbook or a service manual for this model to resolve the Power SOS issue.

Alternatively, can anyone suggest if information posted under "Panasonic Plasma TX-P42G20B -3 red blinks" is relevant for TX-P model.


Thank you

[dick_barton]

Re: Panasonic TX-P46G20B - four blinks

Service manual available from here

[tntoz]

Re: Panasonic TX-P46G20B - four blinks

hello,

Do you have any insight on what is the logic implemented by VISM42N04T ?

Thank you

[dick_barton]

Re: Panasonic TX-P46G20B - four blinks

A google search has the VISM42N04T as an "LCD power chip". It looks like this monitors the various voltages and standby signal when powering up the set, what they would call a supervisory IC.