Hello Friends,
I am from India. I have a Hometheater Samsung HT-Z310 which is lying dead. Actually its SMPS (ORTP-616) has gone dead. I contacted the Service Center to CEO's Desk of Samsung India but they don't have any solution as the model has been discontinued. I tried to repair the SMPS board with the help of a electronic mechanic. On initial inspection it is found that the PWM IC FSDM0365 (it is wrongly mentioned as FSDM0356 in the schematic) was blown along with fuse and few diodes. Replaced all the faulty parts, IC FSDM0365 is not available anymore, so replaced with FSL136MR (as suggested in TI website), but still it is not working. We have checked all the secondary side and it is OK. The problem is in the primary side. Another IC i.e. KA5Q1265RF is also there which is also not available locally or online in India. I suppose it is OK. Can anybody suggest how it can be restored or any replacement available. The schematic is attached herewith, please look into it and help me to figure out the problem. Please note that the SMPS developed the problem due to heavy power fluctuations here.
I am from India. I have a Hometheater Samsung HT-Z310 which is lying dead. Actually its SMPS (ORTP-616) has gone dead. I contacted the Service Center to CEO's Desk of Samsung India but they don't have any solution as the model has been discontinued. I tried to repair the SMPS board with the help of a electronic mechanic. On initial inspection it is found that the PWM IC FSDM0365 (it is wrongly mentioned as FSDM0356 in the schematic) was blown along with fuse and few diodes. Replaced all the faulty parts, IC FSDM0365 is not available anymore, so replaced with FSL136MR (as suggested in TI website), but still it is not working. We have checked all the secondary side and it is OK. The problem is in the primary side. Another IC i.e. KA5Q1265RF is also there which is also not available locally or online in India. I suppose it is OK. Can anybody suggest how it can be restored or any replacement available. The schematic is attached herewith, please look into it and help me to figure out the problem. Please note that the SMPS developed the problem due to heavy power fluctuations here.