Dvd Unit (X37-1070-00) - Kenwood KVT-627DVDY Service Manual

QQ
3 7 63 1515 0
VIDEO UNIT (X35-448/449x-xx)
Ref. No. Application / Function
IC1 Inverter control IC
IC101 DC/DC converter IC
IC203 VCOM amp
IC300 Three states buffer
IC301 Timing controller IC
IC302 AND
IC303 PLL LPF
IC401 Dimmer sensor IC
Q1 Dimmer SW
Q2,3 Inverter driver
Q5 5V AVR
Q202,203 VCOM driver
Q300 Switch
Q301 VCO
Q302,303 Buffer
Q501 Touch panel Y1 SW
Q502 Touch panel X0/Y1 SW
TE
L 13942296513
Q503 Touch panel X1/Y0 SW
Q601 Switch

DVD UNIT (X37-1070-00)

Ref. No. Application / Function
IC1 RF signal processing IC
IC2 Driver
IC3 FLASH ROM
µ-com built-in optical DISC control IC
IC4
IC5 Voltage detection IC
IC8 Voltage detection IC
IC9 S1.5V power supply IC
IC10 S3.3V power supply IC
IC11 EEPROM
Q1 MOS-FET
Q2 MOS-FET
Q7 APC transistor
Q8 APC transistor
Q9 MOS-FET
www
Q10 MOS-FET
Q11 Resistor built-in transistor
.
Q12 Resistor built-in transistor
Q13 Resistor built-in transistor
Q14 Resistor built-in transistor
COMPONENTS DESCRIPTION
Control and drive of inverter circuit for backlight
±12V power supply for VCOM amp, -12.0V/+18.5V LCD power supply
VCOM signal amplification amp
Start pulse switching SW
LCD module control
V.SYNC delay buffer
LPF for PLL control (VT voltage control)
Auto Dimmer detection sensor
ON/OFF control signal of PWM and put on dimmer on backlight
Inverter circuit driving
5V power supply for inverter control IC
VCOM signal buffer
For switching IC205
For PLL oscillation
For PLL clock
Y0 (X0) SW: Comes ON when inputting to Y (X)-axis and goes OFF when inputting X (Y)-axis
Y1 SW: Comes ON when inputting to Y-axis and impresses voltage
X1 SW: Comes ON when detecting panel touch/X-axis input and impresses voltage
OPEN/CLOSE key ILLUMI blinking switch
RF signal processing
Driver for motorists/pickup actuators
FW maintenance for optical DISC control IC
Optical DISC control in general/ATAPI interface
For reset of optical DISC control IC
For monitoring power supply voltage
S5V → S1.5V
S5V → S3.3V
Data storage for optical DISC control IC
DVD laser diode ON/OFF control
CD laser diode ON/OFF control
CD laser diode light emission amount control
DVD laser diode light emission amount control
For CD laser diode protection
For DVD laser diode protection
x ao u163
y
LO-MUTE signal control
i
FG signal control
BMS signal control
DRMU signal control
2 9
8
Operation / Condition / Compatibility
Q Q
3 6 7 1 3 1 5
Operation / Condition / Compatibility
co
.
KVT-627DVD/627DVDY/717DVD
KVT-737DVD/747DVD/767DVD
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9
13