Kenwood DDX7032 Service Manual page 9

Ref. No. Application / Function
Q706 Transistor
Q707 Transistor
● VIDEO UNIT (X35-4940-xx)
Ref. No. Application / Function
IC1 Inverter control IC
IC100 Mono-multi
IC101 NOT
IC102 DC/DC converter IC
IC200 Op amp
IC300 Regulator
IC301 Chroma and Gamma T/C
IC302 OR
IC303 F ROM
IC304 NOT
Q1 5V constant voltage
Q2,3 Inverter driver
Q4 Dimmer SW
Q5 Switch
Q140,141 -10.0V regulator control
Q202,203,205 Buffer
Q300,301 Buffer
Q302 Switch
Q303,304 Switch
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
Q600,601 LED SW
● DIGITAL I/O UNIT (X88-2030-xx)
Ref. No. Application / Function
Fixed Current Limit
IC100
Power Distribution Switch
Fixed Current Limit
IC101
Power Distribution Switch
IC104 Exclusive OR Gate
Low Dropout Voltage
IC105
Linear Regulator
IC106 System-On-Chip Processor
IC108 Inverter
IC200 Triple Inverter
COMPONENTS DESCRIPTION
DET MUTE circuit (Trigger Reset)
AV selector control circuit
Control and drive the inverter circuit for the back light
Delay 5V power supply for DC/DC IC
Reverse
+12.5V/-12.0V power supply for VCOM amplifi er and +15.0V power supply for LCD
For VCOM amplifi er
2.5V regulator
Control LCD module
3.3V conversion
For Mstar FW
Reverse
5V power supply for inverter control IC
Drive the inverter circuit
Be turned on or off by the PWM control signal to dim or not to dim the back light.
SW to change the free run frequency of inverter control IC
-10V regulator for LCD
For VCOM current amplifi cation
For Chroma trap
NTSC/PAL switching
For Mstar RESET
X1 SW: Be turned on when the touch panel is touched or when there is an input at X
axis, and apply voltage.
X0 SW: Be turned on when there is an input at X axis, and apply voltage
Y1 SW: Be turned on when there is an input at Y axis, and apply voltage
Y0 SW: Be turned on when there is an input at Y axis, and apply voltage
Y0/Y1 SW: Be turned on when there is an input at Y axis, and be turned off when there
is an input at X axis
Control LED (PWM control).
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
DDX7032/7032M/712
DNX7120/7220/7320
Operation / Condition / Compatibility
Operation / Condition / Compatibility
Operation / Condition / Compatibility
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