All:
Two questions:
1) I found Encompass Parts (https://www.encompassparts.com) that seemingly provide SONY made components. For the STK4278-L IC on the D board, they have:
SONY Part Number 8-749-923-16 STK4278-L $62.82
Japanese semi's (likely Sanyo) 8-749-923-16 STK4278-L $19.95
SANYO is the brand carried by almost all sites as "genuine SANYO."
Some sites offer Chinese STK4278-L $6.95
Is there a real difference between SANYO and SONY other than brand cost?
2) What is the difference between stk4278-L and stk4278 ICs?
THanks.