I think this is a little newer than the sets with the SBX module.
The thing to watch besides the usual on these is four small caps in
the converter. They would crack & blow the converter xistors
& fuseable. IIRC originals were light brown & updated caps blue ???
Anyhows we kept a bag of them on hand.
BTW SBX modules also used in some Toshiba, & either GS or Samsung. Maybe others.
73 Zeno
LFOD !