Reply to "Lionel 8142-T35 sound board(SOS) repair"

Ted SOGR Forum Member DIGITAL SUBSCRIBER

Glad you got it working again. Now I know what I have to change on mine.

One more question... Were you running the loco on a "chopped wave" power supply (like an MTH Z-1000 or Lionel Powermaster?) We run our Christmas loop with an old K-Line transformer which puts out a very aggressive waveform. Would the much higher (+/- 35V peak-to-peak) voltage be responsible for overheating the transistors and causing the board to fail? -Ted

7/16/1511:33 PM

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