Sony KVM1430A low contrast

[bigboss80]

Forgive me but I just double-checked everything and saw that I was measuring on pin 20, that's why it didn't change when touching the contrast, I redid the measurements carefully this time. On pin 19 connected to the circuit with contrast at maximum 2.6 Volts, contrast at minimum 1.99 Volts, instead on the pad with pin 19 isolated everything at maximum 1 Volt everything at minimum 1.4 Volts, then while I was at it I also measured 20 but this time adjusting the brightness because that is about the brightness, everything at maximum 2.2 Volts everything at minimum 0.9 Volts.