Brother PR655 Service Manual page 220

Test mode Selecting test mode
#23. Sewing light, Speaker and S/S LED checking
Select this mode to check whether the Sewing light, Speaker and the Start/
Stop LED are operated correctly.
[LED Check]: Turn the LED lamp off to press [ON] button.
: Turn the LED lamp on to press [OFF] button.
[Speaker Check]: Speaker sounds minimum volume to press [1] button.
: Speaker sounds minimum volume to press [5] button.
[Start/Stop LED Check] : S/S switch LED red lights to press
"Red ON".
: S/S switch LED green lights to press
of "Green ON".
: S/S switch LED lights off to press
"OFF".
#24. LCD checking
Check the state of the LCD.
Press the button, and the button color or pattern is displayed on the LCD.
When touch the screen in the state that the color or pattern is displayed on
the LCD, return to the test mode #24 screen.
*Key point
• The screen may flicker, but this is not a failure.
Pressing the button on the lower section of the screen changes the brightness
of the backlight.
button of
button
button of
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