-   I get F61 also on SA HT740. But each time I hook up speakers to unit the center speaker burns up. I hooked up speakers because someone said this may be reason for F61 code. Someone also said it may be a defective amp switch. The unit never remains on after pushing power switch, just momentary on, screen shows F61, then shuts down.-   noboatfey
The F61 error indicates that the unit is in "protect" mode. This means that an error condition was detected in the amp section and the unit has shutdown. This is usually caused by a defective amp chip. Expect a parts cost in the range of $60-$90.
The error code F61 it mean the power regulator are missing such as 5V or 12V + --
Are you Tech usualy the electrolytics capacitor dry out, regulator IC defect or over heat in power supply section You can see the layout on those connector mark the voltage like 5VBU 12V+ 12-- then see which one is miss or lower then it should be
Let me know if you need schematic or further assistant
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