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CONTROL BOARD POWER UP

Each time power is applied to the control board, the bootloader is launched. The bootloader looks at the

ash conguration to choose which of the three conguration modes to use.

During the boot up process, the conguration mode number 1, 2, or 3 is displayed in the HUMIDITY display

for several seconds.

This function is used to help the technicians verify the proofer control board is congured correctly.

LCD CONTRAST ADJUSTMENT

If the control board includes an LCD, this procedure can be followed to adjust the LCD contrast.

Enter Bootloader:

1. Turn o󰀨 the Proofer with the ON/OFF button.

2. Hold these three buttons, in this order for 5 seconds.

• HUMIDITY DOWN ARROW

• TEMPERATURE UP ARROW

• ON/OFF button.

3. Keep holding the three buttons until "conF" is shown

in the Temperature display (Fig 23).

4. The current proofer conguration value will be

displayed in the HUMIDITY display. 1, 2 or 3.

5. While in the normal bootloader mode, hold down the

HUMIDITY DOWN button and then press the TEMP

UP button. You will see the LED display change and

the LCD will display the instructions (Fig. 26). The

system is now in LCD contrast setting mode.

6. Using the HUMIDITY UP and DOWN buttons set the

LCD contrast as desired.

7. Once satised with the LCD contrast setting, press

the TEMP UP button to save the setting and exit the

LCD contrast mode. You will return to the bootloader

mode.

8. Once back in the bootloader mode, set the desired

conguration and press ON/OFF button to start the application.

Fig. 26

**Set LCD Contrast**

Use Humidity up/down

keys to change the

LCD contrast

baxter PW1E User Manual

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