Confirmation Of Auto Standby Operation - Yamaha YST-SW215 Service Manual

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CONFIRMATION OF AUTO STANDBY OPERATION /

Setting
1) Turn off the power switch located on the rear panel.
2) In order to shorten the time required for operation
check; connect a 10 kΩ resistor at both ends of R252
on the MAIN P.C.B. (3).
3) Connect the output signal from the signal generator to
the L / MONO terminal of the unit.
4) Set the signal generator for the sine wave of 100 Hz, 8
mV.
5) Turn on the power switch located on the rear panel.
Confirmation
1) Set the AUTO STANDBY switch to the LOW position.
2) Turn on the STANDBY/ON switch.
The display LED lights up (green) and its color changes
to red after 5 to 10 seconds.
3) Turn off the STANDBY/ON switch.
The display LED goes off.
4) Set the AUTO STANDBY switch to the HIGH position.
TE
L 13942296513
5) Turn on the STANDBY/ON switch.
The display LED lights up (green) and its color remains
unchanged even after time have elapsed.
6) Turn off the STANDBY/ON switch.
The display LED goes off.
After Confirmation
1) Turn off the power switch located on the rear panel.
2) Disconnect the 10 kΩ resistor connected to both ends
of R252.
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