Hi Admin,
Checked the unit with the doc sent, couple of problems, +12V and _12V shows around +&-7.5V also 180V is around 50V though on pin 13 &14 or T2 shows around 102VAC. replaced c18 &c19 for +-12V but no luck, +&-5V is fine. c17 and d4,5,6,7 are ok. DMM check for Q1 Q2 U8 & U9 is ok.Also the schematic you sent is for Rev C PCB, mine is Rev J, there is a difference, my PCB does not have Q9 but there is a Q10 (MPS2222A). Am I on the right track or is the Rev J pcb different? do you have the schematic and troubleshooting guide for the Rev J PCB?
regret to trouble you and many thanks for your advise!