UMC/57G-GB-FTCU-UK Intermittant on/stand by.

[Mrstumped]

Over the last few months this set has been intermittently failing to start up. Now permanently on s/by.All electrolytic caps in power supply secondaries have been changed(9).All supply voltages seem to be operating namely 5v, 12v & 24v. Before the receiver went to permanent s/by (powered up) I noticed that a supply from the main board to the inverter board had risen from approx 0.2 volts to over 3 volts. Presumably this is the line that starts the inverter up?. I have been unable to obtain a manual or schematic for this model,hence my confusion. My browser is google chrome and my operating system is Windows XP. Thank you for your interest.

 

[Mrstumped]

Hi this is Mrstumped writing about the umc m40/57g-gb-ftcu-uk. The problem turned out to be on the main board, replacing this cured the problem.Many thanks to those who have read up on the problem.

 

[Mrstumped]

Hi this is Mrstumped writing about the umc m40/57g-gb-ftcu-uk. The problem turned to be on the main board, replacing this cured the problem.Many thanks to those who looked at the problem. ps why did I have to type this out twice?