Kenwood DDX7019 Service Manual page 7

Ref. No. Application / Function
IC200 OP AMP
IC300 2.5V regulator
IC302 Serial fl ash (2M)
T/C γ OSD IC
IC304
IC305 Buffer
Q1 5V constant voltage
Q2,3 Inverter driver
Q4 Dimmer SW
Q5 Inverter frequency changing switch
Q6,7 Buffer
Q200,202 Buffer
Q203 Buffer
3.3V → 5V level conversion
Q300,301
Q500 Touch panel X1 SW
Q501 Touch panel X0 SW
Q502 Touch panel Y1 SW
Q503 Touch panel Y0 SW
Q504 Touch panel Y0/Y1 SW
● DIGITAL I/O UNIT (X88-2020-18/19)
Ref. No. Application / Function
Fixed Current Limit
IC100
Power Distribution Switch
Fixed Current Limit
IC101
Power Distribution Switch
IC104 Exclusive OR Gate
IC105 Low Dropout VoltageLinear Regulator
IC106 System-On-Chip Processor
IC108 Inverter
IC200 Triple Inverter
IC201 Octal Bus Transceiver
IC202,203 SDRAM 256Mbit
IC205 Octal Bus Transceiver
IC207 iPod Authentication Coprocessor
IC211 NOR Flash Memory 128Mbit
IC301 Stereo DAC
IC302 Color TV signal encoder
IC305 Dual OP-Amp. (LPF)
IC332 Low Dropout Voltage Regulator
COMPONENTS DESCRIPTION
VCOM amplifi er
Power supply for MST
Flash memory for MST
Control of LCD module
5V → 3.3V level conversion
5V power supply for inverter control IC
Drive the inverter circuit
Turn on or off in response to the PWM control signal to dimmer the back light
SW to switch the free run frequency for inverter control IC
12.5V regulator
For VCOM current amplifi cation
For VCOM automatic adjustment
MST_RESET
X1 SW: Turn on in response to detection of the panel touch or X axis input and apply voltage
X0 SW: Turn on in response to X axis input and apply voltage
Y1 SW: Turn on in response to Y axis input and apply voltage
Y0 SW: Turn on in response to Y axis input and apply voltage
Y0/Y1 SW: Turn on in response to Y axis input and off in response to X axis input
Large current distribution switch for USB1
Large current distribution switch for USB2
EP_SYNC (composite sync) output
SW3.3V → 1.8V (for EP9307IRZ)
Media Processor
E_HSYNC Buffer
Sub Clock Buffer
Flash Memory data line switching (DA0~7)
SDRAM for wrok memory
Flash Memory data line switching (DA8~15)
iPod Authentication
Flash Memory for program data and graphic data
Audio signal digital/analog converter
Graphic signal digital/analog converter
Stereo DAC Output LPF
A8V → A5V (for Stereo DAC and LPF)
DDX7019/7029/7029Y/7039/8019/8029/8029Y/8039
DNX7100/710EX/7200
Operation / Condition / Compatibility
Operation / Condition / Compatibility
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