NewHome › Forums › OSSC, OSSC Pro and DExx-vd isl › OSSC – DIY Support › Finished Building OSSC, Both leds solid color, screen turns on shows nothing › Reply To: Finished Building OSSC, Both leds solid color, screen turns on shows nothing
Sad to see you had no luck in troubleshooting your unit. My first try of building an OSSC 1.5 had similar problems at first: both LEDs were on and the LCD only showed a fading backlight after turning the unit on. Luckily i had access to a descent microscope and eventually found a solder bridge on two pins of the TVP7002, which was almost impossible to see with just the magnifying goggles and glasses i own. Even though i did reflow all the pins multiple times before, it was still there. I had to use some solder wick and did some resoldering under the microscope to get rid of the bridge.
Most of the time it’s simply a small thing like that you fail to find all the time. But in my case i knew the FPGA worked (at least: partially), because i had no problems flashing the firmware via JTAG.
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