How do you fix a pink tv screen

There is one of two things to cause this. Either the Optical Block is bad or you will have to call a Factory Repair Facility out to reinitialize Data in the Service Mode. Regardless of which one it is you will need to call a repairman to verify. Hitachi will not give you the Procedure because you can corrupt
Data in the wrong registry and that could be real bad. If it is the Optical Block, It is not worth investing the money it the repair unless Hitachi helps with the cost.
Hope this helps,
Skyassoc