Sony KDL-19BX200 - No go.

[Turnip]

Hi folks,

Have one in where there's 300v on the main cap and chopper chip, and the secondary Schottkys are OK.
Suspect it's the chip itself - Marked 1A30AE / CMO465R - A SMD device - Can't find one anywhere - Got the manual, but being a Turkish set, there's nothing useful in it.

Wonder if anyone has any idea ?  - Thanks - Chris.

[vinceroger69]

maybe FSCM0465R theres a few on ebay but not the same package type
https://www.fairchildsemi.com/datasheets/FS/FSCM0465R.pdf
https://www.aliexpress.com/store/product/CM0465R-CMO465R-TO-263-6-The-new-quality-is-very-good-work-100-of-the-IC/736893_32528366427.html

[Turnip]

Hi Vince and thanks,

Realised I'd misread chip as CMO rather than CM0, so downloaded spec and noticed it needs a start up voltage on Vcc, provided in the set by R2086(470k) and R2032(330k) - The 470k was O/C.

Should maybe have realised as the main cap was still at 300v the next day, but it didn't bite me.

Checked Ebay, and glad I didn't need the chip as SMD version seems unavailable, maybe because it doesn't go wrong - Thanks again - Chris.