Hello Johnny have the problem that one with the C807 already repaired box now refuses service again. A renewed replacement of the C807 and the neighboring C814, C850 and all three voltage regulators U801, U802 and U805 including the two Elkos C14, C15 on the power supply (this commodity bloated). In addition proactive still the Elkos on the PWS (C12, C16, C17, C18 and C20) as well on the Mainboard C801, C805, C810, C816, C819, C819, C848 were exchanged. The problem remains, only the red LED lights up and flashes when a buuton on the remote control is pressed. The hard disk starts up and the CPU warms up. Output voltages at the step down regulators (U801 = 1.280 V, U802 = 1.258 V, U806 = 2.548V) should be OK? Also behind the output coils there is an approximately 0.5 V lower voltage. All voltages of the power supply are also there. I think by measurement should a defective step down regulator be recognizable? If the output voltages are OK then the regulator should work, am I right? Strangely, I measure a resistance of only 5.8 ohms at the output of L803. C819, C820 has been already replaced therfore the low resitance value could com only from C820 or R811 right? Does it make sense in this status to flash the JTAG with the Cypress board? The box was not touched by software until the hardware error. I get after the input no output on the serial port. Also, the USB port has no voltage. Do you have any further troubleshooting tips?