Got a hold of this TV which had no problems but it’s at the age where capacitors could fail. Alternate model number is 42LB4DS-UA.
Checking the power supply found a mix of mostly Capxon and some United Chemicon capacitors. Two small 220uF/25V caps were bulged. They tested less than half the rated capacitance so the circuit was still working.
I decided to replace all the green Capxon caps.
C207, C218 – 220uF/25V
C202, C204, C205, C227, C234, C235 – 680uf/25V
C208, C209, C210 – 1000uF/35V
TV powered up fine as before but should last a lot longer.