TrinitronFix

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The Trinitron Fix is the name given to the tool for fixing color issues that are present in some Sony Trinitron TVs. After further research, we found out that the issue is only present in TVs with chassis FE2 with v3.17 and above.

So, how to know if my TV requires the TrinitronFix and fix it?

Software fix

The easiest way is by entering in the TV service menu and check the chassis and version numbers.

If your TV is not in this group, DO NOT ENABLE THE TRINITRON FIX, or you'll be facing image issues.

Find below a list of all known affected TV models:

Model Chassis Version Manual
KV-14LM1E FE-2 v5.20 http://j.mdownload1.free.fr/Schemas/Sony/KV-14LM1x_14LT1x.pdf
KV-21FX30E FE-2 https://www.manualslib.com/manual/159564/Sony-Fd-Trinitron-Kv-21fx30b.html
KV-25FX30E FE-2 v3.44 https://www.manualslib.com/manual/699451/Sony-Fd-Trinitron-Kv-25fx30b.html
KV-29FX30E FE-2 v3.44 https://www.manualslib.com/manual/699451/Sony-Fd-Trinitron-Kv-25fx30b.html
KV-29CL11E FE-2 v4.46 https://www.sony.es/electronics/support/res/manuals/4102/41026843M.pdf
KV-21LS30E FE-2 https://elektrotanya.com/sony_kv-21ls30_chassis_fe-2.pdf/download.html
KV-29LS35E FE-2 v3.44 https://www.manualslib.com/products/Sony-Kv-29ls35e-3842473.html
KV-21LT1E FE-2 v5.0 https://www.manualslib.com/manual/159569/Sony-Fd-Trinitron-Kv-21lt1e.html

Hardware fix

It seems that by using the automatic switch Bandbridge SVB7735/SVB7733, the signal is normalised in a way that the colours are displayed correctly without requiring the fix.

Update: after many test performed by several users, we can confirm that whereas the switch does a good job in fixing the issue, it is not 100% fixed, but you'll save a lot of headaches with the timings and probably you won't even notice any color degradation at all depending on your color perception.