Changhong 21B18EA-TB1238AN
Hilang OSD, rusak atau sedikit short c didalam T osilator osd, solusi: open pin T osilator osd yang di gnd.
Konka K2139C3-TB1238AN
Disearching lewat, difine OK tapi lama-lama mbleset, ganti c didalam T VCO (pin50&51 IC TB1238AN) dg c ceramic 22pf.
