i've seen more and more people with this issue since the beginning of 2004. has anyone successfully corrected this issue? what ended up being the culprit?

DIODE RBV-604 1Z01 871907947 DAV-S300 DIODE RK36LF-A4 1Z 871908053 DAV-S300 DIODE RK36LF-B3 1Z01 871907948 DAV-S300 DIODE SMLS72423CTP15 3Z 871907967 DAV-S300 DIODE FME-24H 5Z01 871908006 DAV-S300 DIODE RK-39 5Z01 871908283 DAV-S300 DIODE P6SMB15AT3 3Z U0125946U DAV-S300 C-DIODE,RB401D U0125947U DAV-S300 C-DIODE,RB401D U0125949U DAV-S300 C-DIODE,HN2D01F U0125952U DAV-S300 DIODE,1N5818 U0125992U DAV-S300 DIODE,EU01Z U0125998U DAV-S300 C-DIODE,SB07-015C U0126009U DAV-S300 DIODE,3GWJ42 U0126014U DAV-S300 DIODE,RM11B U0126015U DAV-S300 DIODE,RM11B U0126032U DAV-S300 DIODE,ERC12-08V1 U0126033U DAV-S300 DIODE,ERA15-01V1 U0126034U DAV-S300 DIODE,ERA22-04V1 U0126035U DAV-S300 DIODE,ERB44-04V1 U0126036U DAV-S300 DIODE,ERD32-01L U0126037U DAV-S300 DIODE,ERD29-06J U0126038U DAV-S300 DIODE,SID1003BQ Pl.let me know

Pl.give me part nos.so that I can get these diodes for you. The service manual may cost US$50.00. If you approve I will write to sony