-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on
- posted
16 years ago
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The thermal switch monitors the heatsink but what is the function of the depletion type FET, monitoring the negative half cycle of the the AC3 ac line, via D3 ? What happens in a fault mode to that line that can be monitored and could be of use for protection.operation? What does D1 do ? The relay contact cuts in serious attenuation of the signal going to the pa in fault mode
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