Kenwood DDX5024 Service Manual page 8

DDX5024/5034/5034BT/5034M/5054/514/54R
DNX5140/5240/5240BT/6000EX/6140
Ref. No. Application / Function
Q110 Transistor
Q111 Transistor
Q112 Transistor
Q113~118 Transistor
Q300 Transistor
Q301~305 Transistor
Q403 Transistor
Q406 FET
Q407 Transistor
Q500~503 Transistor
Q504,505 Transistor
Q700 Transistor
Q701 Transistor
Q702~705 Transistor
Q706~708 Transistor
Q709~711 Transistor
Q800,801 Transistor
Q802,803 Transistor
Q804 Transistor
● VIDEO UNIT (X35-4890-10)
Ref. No. Application / Function
IC1 Inverter control IC
IC101 NOT
IC102 DC/DC converter IC
IC200 Regulator
IC201 Op-amp
IC202 D fl ip fl op
IC203 γ T/C
IC204 OR
IC205 Regulator
IC206 Buffer
IC207 FROM
IC208 Regulator
IC501 AND
IC700 Remote controller photoreceptor Detection for remote controller
Q1 5V constant voltage
Q2 Dimmer SW
Q3 SW
Q4,5 Inverter Driver
8
COMPONENTS DESCRIPTION
SI
Synchronizing separator circuit of FRONT VIDEO input
SI
Synchronizing separator circuit of FRONT VIDEO input
Electronic volume IC MUTE
For AUDIO selector
KAB power supply
KAB power supply
KAB detection
TUNER8V circuit
On when AM (Tuner 8V)
Pre-OutMute circuit (AV-OUT)
Pre-OutMute circuit (REAR, SUB)
Pre-OutMute circuit (FRONT)
Pre-OutMute circuit (REAR, SUB)
Pre-OutMute circuit (AV-OUT)
LED9V SW
LED9V
X15 SW-REG PSTART
Control and drive of the inverter circuit for the back light
Reverse
+12.5V/-12.0V power supply for VCOM amplifi er and +15.0V power supply for LCD
2.5V regulator
For VCOM amplifi er
LCD dot clock timing
Control of LCD module
For V_MUTE
5.3V regulator
5V→3.3V level conversion
For Mstar FW
5.3V regulator
3.3V→5V level conversion
5V power supply for inverter control IC
Turn on or off in response to the PWM control signal to dimmer the back light
SW to change the free run frequency for inverter control IC
Drive of the inverter circuit
Operation / Condition / Compatibility
Operation / Condition / Compatibility