12
KVT-819DVD/829DVD
/829DVDY/839DVD
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC304
Timing controller IC
Control of LCD module
IC401
Dimmer sensor
Detection for auto-dimmer
Q1
Dimmer SW
Turn on or off in response to the PWM control signal to dimmer the back light
Q2,3
Inverter driver
Drive the inverter circuit
Q4
Switch
SW to change the free run frequency for inverter control IC
Q5
5V constant voltage
5V power supply for inverter control IC
Q301
VCO
For PLL oscillation
Q303
Buffer
For PLL clock
Q501
Touch panel Y1 SW
Y0 (X0) SW: On in response to Y (X) axis input and off in response to X (Y) axis input
Q502
Touch panel X1/Y0 SW
X1 SW: Turn on in response to sensing of the touch on the panel or X axis input and apply voltage
Q503
Touch panel Y1 SW
Y1 SW: Turn on in response to Y axis input and apply voltage
●
DIGITAL I/O UNIT (X88-2020-14)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC100
Fixed Current Limit
Power Distribution Switch
Large current distribution switch for USB1
IC101
Fixed Current Limit
Power Distribution Switch
Large current distribution switch for USB2
IC104
Exclusive OR Gate
EP_SYNC (composite sync) output
IC105
Low Dropout Voltage
Linear Regulator
SW3.3V
→
1.8V (for EP9307IRZ)
IC106
System-On-Chip Processor
Media Processor
IC108
Inverter
E_HSYNC Buffer
IC200
Triple Inverter
Sub Clock Buffer
IC201
Octal Bus Transceiver
Flash Memory data line switching (DA0~7)
IC202,203
SDRAM 256Mbit
SDRAM for work memory
IC205
Octal Bus Transceiver
Flash Memory data line switching (DA8~15)
IC207
iPod Authentication Coprocessor
iPod Authentication
IC211
NOR Flash Memory 128Mbit
Flash Memory for program data and graphic data
IC301
Stereo DAC
Audio signal digital/analog converter
IC302
Color TV signal encoder
Graphic signal digital/analog converter
IC305
Dual OP-Amp.(LPF)
Stereo DAC Output LPF
IC309
On-Screen Display Controller
On-Screen Display analog signal output
IC316
Triple Inverter
Dot Clock(14.4MHz) Buffer
IC322
CPLD
2/3 frequency dividing and PAL thinning control (compression processing circuit)
IC332
Low Dropout Voltage Regulator
A8V
→
A5V(for Stereo DAC and LPF)
IC336
Triple Schmitt Inverter
VSY, HSY Buffer
IC337
Triple Schmitt Inverter
CPV, STH Buffer
Q302
General Purpose Transistor
OSD ROUT Current Amplifi er
Q303
General Purpose Transistor
OSD GOUT Current Amplifi er
Q304
General Purpose Transistor
OSD BOUT Current Amplifi er
COMPONENTS DESCRIPTION