KVT-817DVD/827DVD/827DVDY
KVT-837DVD/847DVD/867DVD
13
Ref. No.
Application / Function
Operation / Condition / Compatibility
Q152
SVR6.8V, Audio 3.3V, IC150 power supply
Power supply to IC150, voltage supply to Q151
Q200
For audio muting
Audio muting of pre-out front right channel
Q201
For audio muting
Audio muting of pre-out front left channel
Q202
For audio muting
Audio muting of pre-out rear left channel
Q203
For audio muting
Muting at momentary power down, resetting, and audio mute timing
Q204
For audio muting
Audio muting of pre-out rear right channel
Q205
For audio muting
Audio muting of pre-out center channel
Q206
For audio muting
Audio muting of pre-out sub-woofer channel
Q207
For audio muting
Audio muting of AVOUT right channel
Q208
For audio muting
Muting at momentary power down, resetting, and audio mute timing
Q209
For audio muting
Audio muting of AVOUT left channel
Q250
AM power supply SW
Comes ON when AM source is selected
Q252
For AM power supply
Audio 8V is supplied when AM source is selected
Q403,404
Audio selector control SW
Converts IC413
µ
-com controlled terminal voltage: 5V
→
8V
Q405,406
Audio selector control SW
Converts IC414
µ
-com controlled terminal voltage: 5V
→
8V
Q500
For reversing resetting signal voltage
Reverses signal in order to obtain resetting signal for TV tuner
Q800
MUTE 0 terminal control SW
MUTE 0 audio muting control
●
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
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
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
COMPONENTS DESCRIPTION
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