This is a new venture for me, and I'm needing suggestions on what to try next.
I bought an upright Sega Turbo, and when I plugged it in, the speakers buzzed loudly; the LED displays were going nuts, showing different types of symbols and flashing; and the monitor showed all kinds of numbers and letters in yellow / orange, and the background was a pink / purple color (see attached photo).
I tested the power supply, and it was dead. I installed a new one (Suzo/Happ 80-0064-00), but before connecting the 5V wires, I tested it to make sure it was putting out 5V. It tested 5.2V. I connected the wires, same as the old power supply (Red & Blue on AC, White on -5V, and Yellow on +5V).
I plugged the machine in. The LED on the board lit. I walked around to the front, and the LED's were still going crazy. The monitor was black & white with vertical / squiggly lines. Then, after about 5 or 10 seconds, everything died. The power supply shut down on thermo overload. I disconnected the 5V wires and waited a while. I plugged the unit back in. The power supply was alive and working properly again.
I then reconnected the old power supply. Everything behaved as it did at the beginning.
I removed all removable chips and reseated them. 2 had bent legs, so i thought i was good. No.
I connected the new power supply again and it works well - until i connect the yellow / white wires to +5 / -5. With the 5V wires connected, there isn't any voltage coming from the power supply and the LED on the supply is not lit.
Any ideas?
I bought an upright Sega Turbo, and when I plugged it in, the speakers buzzed loudly; the LED displays were going nuts, showing different types of symbols and flashing; and the monitor showed all kinds of numbers and letters in yellow / orange, and the background was a pink / purple color (see attached photo).
I tested the power supply, and it was dead. I installed a new one (Suzo/Happ 80-0064-00), but before connecting the 5V wires, I tested it to make sure it was putting out 5V. It tested 5.2V. I connected the wires, same as the old power supply (Red & Blue on AC, White on -5V, and Yellow on +5V).
I plugged the machine in. The LED on the board lit. I walked around to the front, and the LED's were still going crazy. The monitor was black & white with vertical / squiggly lines. Then, after about 5 or 10 seconds, everything died. The power supply shut down on thermo overload. I disconnected the 5V wires and waited a while. I plugged the unit back in. The power supply was alive and working properly again.
I then reconnected the old power supply. Everything behaved as it did at the beginning.
I removed all removable chips and reseated them. 2 had bent legs, so i thought i was good. No.
I connected the new power supply again and it works well - until i connect the yellow / white wires to +5 / -5. With the 5V wires connected, there isn't any voltage coming from the power supply and the LED on the supply is not lit.
Any ideas?
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