PN-L803C/80TC3 HARDWARE DESCRIPTIONS 8 - 5
2. CAPACITANCE TOUCH PANEL THEORY BASIS
2-1. Capacitance change basis
Typical sensor pattern
Equivalence circuit
[Capacitance change outline]
2-2. Drive system (Sharp original: The multiple drive system)
・
Multiple lines are driven at the same time.
[Image of the drive system]
[Configuration]
Extract the touch position, size,
strength, etc, after reading the
capacity distribution.
The capacity is changed with
coming near the touch panel.
Metal mesh wiring
Activates the multiple lines at the same time and reads the signal one
by one from mixed multiple lines by the arithmetic processing.
Sensor sheet
Read Q=Cf.V as the signal.
Touch sensor
Touch controller
Содержание PN-80TC3
Страница 150: ...PN L803C 80TC3 DISASSEMBLY AND ASSEMBLY 6 6 3 Remove the four screws M3x6 SW W Then remove LED Power Supply PWB ...
Страница 183: ...PN L803C 80TC3 TROUBLESHOOTING 7 10 FUSE POSITION MAIN PWB F2200 F2300 F2102 F2302 F2101 ...
Страница 184: ...PN L803C 80TC3 TROUBLESHOOTING 7 11 5V POWER SUPPLY PWB F2100 F2100 ...
Страница 191: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 7 3 BLOCK DIAGRAM Block diagram ...
Страница 202: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 18 5 PARTS LAYOUT Main PWB TOP ...
Страница 203: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 19 BOTTOM ...
Страница 204: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 20 LED Power Supply PWB TOP ...
Страница 205: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 21 BOTTOM ...
Страница 206: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 22 Key PWB TOP BOTTOM ...
Страница 208: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 24 5V Power Supply PWB connector Upper pin 5V Output Lower pin GND ...