Control Panel; Lcd Indication Processing; Adjusting The Lcd Contrast; Adjusting Fax Sound Volume - Canon iR3245 Series Service Manual

10.1 Control Panel

10.1.1 Overview
iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
The control panel for this equipment consists of the PCBs, LCD, and touch panel shown in the diagram and has main functions described below;
- LCD indication

- Adjusting the LCD contrast

- Adjusting fax sound volume

- USB connection function (USB connector (device) equipped)
- Input with the touch switch
- Input with the Hard key
Touch panel

10.1.2 LCD Indication Processing

iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
The CPU on the main controller PCB transmits the data (display information) to the control panel CPU PCB according to the program.
This data is transmitted to the color LCD via the control panel CPU PCB.
10.1.3 Adjusting the LCD Contrast
iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
For this equipment, the density adjustment volume (VR6801) key is provided on the keypad PCB to allow users to adjust the LCD contrast.
10.1.4 Adjusting Fax Sound Volume
iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
For this equipment, the fax sound volume adjustment key is provided on the keypad PCB to adjust the sounds of alarm and communication for fax transmission/
reception.
Main controller PCB
J6
J3
Color LCD
CN2
J2010 J2016
J1
Control panel CPU PCB
J8
J5,J4
CN1 J6801,J6802
Control panel Keypad PCB
inverter PCB
Control panel
F-10-1
Chapter 10
USB connector
J101 J102
HUB PCB
0019-3744
0019-3755
0019-3757
0019-3873
10-1