CHAPTER 9. HARDWARE DESCRIPTIONS
PN-T321/T322B
HARDWARE DESCRIPTIONS
9 – 6
5 - 2. BASIC STRUCTURE
The touch panel unit is composed in the structure below. Since the cor-
rection information of the camera unit is written in the controller PWB, it
must be used in a pair. (Setting in 1 to 1.)
In servicing, therefore, the touch panel unit must be replaced as
needed. If the unit is not replaced in a pair, calibration is not performed
properly, generating a shift in the detected position.
■
TOUCH PANEL UNIT
■
CONTROLLER PWB
Provided at the back of the LCD module.
No.
Name
1
Controller PWB
2
Camera unit 1
3
Camera unit 2
4
Retroreflective border (left side)
5
Retroreflective border (right side)
6
Glass substrate
7
Retroreflective border (Lower side)
Number of the Controller PWB side
Number of the Camera unit side
1
2
4
6
7
3
5
No.
Name
1
USB cable
2
Controller PWB
3
FFC
4
Camera unit 1
5
Emitted & Reflected IR light
6
Glass substrate
7
Camera unit 2
8
Camera field of view
9
Retroreflective border
No.
Name
1
Camera 1 interface connector
2
Camera 2 interface connector
3
USB interface connector
1
2
7
8
9
3
4
5
6
1
2
3
