Reply to "TIU REV. L"

Vernon BarryOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Power supply section failure. How and what should be done by a pro. The last thing you want to do is kill your whole TIU.

There are 2 regulators associated, the 1 without heatsink and the one with heatsink. Further, there are 2 TVS diodes that could be shorted from voltage spike failures.

Again, the good- TIU can be powered by 5V input on the USB and logic and main processor still operating.

The bad- both AUX power and fixed1 not working- most likely a component in this power supply section, but this is pretty advanced for DIY repair.

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2/7/2310:42 AM

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