Load = 80ohm
Procedure
Adjust volume pot to an output reading of 70VAC. Connect a thermometer to the
temperature sensor. Wait the unit to heat up. A heat gun may be used to speed up
the heating of the heatsink.
(P/F) The output shall mute to < 10V at a temp between 90–115degC
Values to be recorded
Value Pass Range
11b. Thermal cutout 90degC – 115degC
12. Final check for damage
Disconnect from test bench and inspect for scratches on external paint.
13. Factory setting
Set up the unit for default factory setting as below:
Pot positions:
a) Master volume : min
Attach tested sticker.
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