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If button board is disconnected, the problem disappears. If button board is connected without EEPROM (U1), lights blink. |
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U1 EEPROM info: 19-753-01. v1.00 Motorola MC68HC705J1ACP ZRPRVI0001 |
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DC pinout from up to down should be: -5V GND GND +5V First pin (-5V) it outputting around -0.2V instead. IMG_8875.JPG (3,474,757 bytes) |
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There's a subtle clicking noise on the PSU when turned on. |
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Removed transformer and clicking noise disappeared. Put it again but without soldering DC legs and it made clicking noise for a while and then stopped. Soldered them and seems that the transformer died. Will try to make a board that outputs +5V (1.5) and -5V (1A). |
- Anonymous
