Samsung PS42C450B1W CLICKING sound.

[micksack]

I have this tv which once connected to power it clicks and won't display standby light.

If i isolate the power board it doesnt click anymore. And there doesn't seem anything wrong with the board. Looking for some pointers thanks. Photos included

[Andrew F. Ali]

Re: Samsung PS42C450B1W CLICKING sound.

OK. The PSU is OK. So what you are saying is that when you disconnect the Y-main Bd. the PSU does not click anymore. You may have a bad Y-main Bd.

[micksack]

Re: Samsung PS42C450B1W CLICKING sound.

OK. The PSU is OK. So what you are saying is that when you disconnect the Y-main Bd. the PSU does not click anymore. You may have a bad Y-main Bd.

Thanks for your reply. How can I be sure it's a board issue.

[Andrew F. Ali]

Re: Samsung PS42C450B1W CLICKING sound.

Disconnect the Y-Main from the PSU. Do a diode test across Yfr and Yrr and test the ohms reading from GND and the Vscan test point. Report your findings.