![Kenwood KVT-627DVD Скачать руководство пользователя страница 13](http://html.mh-extra.com/html/kenwood/kvt-627dvd/kvt-627dvd_service-manual_189347013.webp)
13
KVT-627DVD/627DVDY/717DVD
KVT-737DVD/747DVD/767DVD
●
VIDEO UNIT (X35-448/449x-xx)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
Inverter control IC
Control and drive of inverter circuit for backlight
IC101
DC/DC converter IC
±
12V power supply for VCOM amp, -12.0V/+18.5V LCD power supply
IC203
VCOM amp
VCOM signal amplification amp
IC300
Three states buffer
Start pulse switching SW
IC301
Timing controller IC
LCD module control
IC302
AND
V.SYNC delay buffer
IC303
PLL LPF
LPF for PLL control (VT voltage control)
IC401
Dimmer sensor IC
Auto Dimmer detection sensor
Q1
Dimmer SW
ON/OFF control signal of PWM and put on dimmer on backlight
Q2,3
Inverter driver
Inverter circuit driving
Q5
5V AVR
5V power supply for inverter control IC
Q202,203
VCOM driver
VCOM signal buffer
Q300
Switch
For switching IC205
Q301
VCO
For PLL oscillation
Q302,303
Buffer
For PLL clock
Q501
Touch panel Y1 SW
Y0 (X0) SW: Comes ON when inputting to Y (X)-axis and goes OFF when inputting X (Y)-axis
Q502
Touch panel X0/Y1 SW
Y1 SW: Comes ON when inputting to Y-axis and impresses voltage
Q503
Touch panel X1/Y0 SW
X1 SW: Comes ON when detecting panel touch/X-axis input and impresses voltage
Q601
Switch
OPEN/CLOSE key ILLUMI blinking switch
●
DVD UNIT (X37-1070-00)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
RF signal processing IC
RF signal processing
IC2
Driver
Driver for motorists/pickup actuators
IC3
FLASH ROM
FW maintenance for optical DISC control IC
-com built-in 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
Q7
APC transistor
CD laser diode light emission amount control
Q8
APC transistor
DVD laser diode light emission amount control
Q9
MOS-FET
For CD laser diode protection
Q10
MOS-FET
For DVD laser diode protection
Q11
Resistor built-in transistor
LO-MUTE signal control
Q12
Resistor built-in transistor
FG signal control
Q13
Resistor built-in transistor
BMS signal control
Q14
Resistor built-in transistor
DRMU signal control
COMPONENTS DESCRIPTION
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299