Quick question to MAC 4100 owners. When you turn the unit off, does the protection relay open immediately with the soft start relay? The unit I am working on doesn't open as soon as the power switch is hit. I hear the soft start open then the protection a couple seconds later. I can hear the music die. I can watch the voltage drop on the meter until it opens. Most other brands I have dealt with open as soon as the power is turned off.
The transistor voltages look good and the power supply has been recapped. The couple resistors look good aside from where the schematic says 5.6k but is actually a 120 ohms. I also replaced the zener and the regular diode.
The transistor voltages look good and the power supply has been recapped. The couple resistors look good aside from where the schematic says 5.6k but is actually a 120 ohms. I also replaced the zener and the regular diode.