Brother PT-H100 Service Manual page 55

If no problems on contrast adjustment and LCD check 1~3,
press the [ENTER] key and shift to the INFORMATION mode
If there are any problems on contrast adjustment and LCD check 1~3,
press the [BS] key and return to the LCD CONTRAST setting indication mode
<Figure 3.3-3>.
* If there are any problems on contrast adjustment, it is available to return to the LCD
CONTRAST setting indication mode
[BS] key when <Figure
<Figure
3.3-4>, <Figure 3.3-5> or
III - 32
<Figure
3.3-3> for adjustment by pressing the
<Figure 3.3-6> is displayed.
3.4-1>.