Kenwood DDX6027Y Service Manual page 12

DDX6027/6027Y/7017
DDX7037/7047/7067
QQ
3 7 63 1515 0
Ref. No. Application / Function
Q55 A8V oversupply SW
Q58 For BU5V power supply
Q59 A8V power supply
Q61 V5V power supply SW
Q62 SW5V power supply SW
Q63 For SW5V power supply
Q64 For V5V power supply
For ±9V power supply
Q65~70
SVR6.8V, audio 3.3V,
Q150
IC150 power supply SW
Q151 For SVR voltage reduction control
Q152 SVR6.8V, audio 3.3V, IC150 power supply
Q200 For audio muting
Q201 For audio muting
Q202 For audio muting
Q203 For audio muting
Q204 For audio muting
TE
Q205 For audio muting
L 13942296513
Q206 For audio muting
Q207 For audio muting
Q208 For audio muting
Q209 For audio muting
Q250 AM power supply SW
Q252 For AM power supply
Q403,404 SW for audio selector control
Q405,406 SW for audio selector control
Q500 For reversing resetting signal voltage
VIDEO UNIT (X35-458/459x-10)
Ref. No. Application / Function
IC1 Inverter control IC
IC101 DC/DC converter IC
IC203 VCOM amp
IC300 Three states buffer
IC301 Timing controller IC
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IC302 AND
IC303 PLL LPF
.
IC601 Remote controller light receptor IC
Q1 Dimmer SW
12
COMPONENTS DESCRIPTION
Comes ON when SW14V is ON
BU14V → 8V for audio is supplied
Comes ON when SW14V is ON
Comes ON at P-ON
BU5V → SW5V is supplied
BU14V → 5V for video is supplied
Comes ON when SW14V is ON
Electric current control of SVR voltage reduction circuit
Power supply to IC150, voltage supply to Q151
Audio muting of pre-out front right channel
Audio muting of pre-out front left channel
Audio muting of pre-out rear left channel
Muting at momentary power down, resetting, and audio mute timing
Audio muting of pre-out rear right channel
Audio muting of pre-out center channel
Audio muting of pre-out sub-woofer channel
Audio muting of AVOUT right channel
Muting at momentary power down, resetting, and audio mute timing
Audio muting of AVOUT left channel
Comes ON when AM source is selected.
Audio 8V is supplied when AM source is selected.
Converts IC413 µ-com controlled terminal voltage: 5V → 8V
Converts IC414 µ-com controlled terminal voltage: 5V → 8V
Reverses signal in order to obtain resetting signal for TV tuner
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
x ao u163
y
LPF for PLL control (VT voltage control)
i
Remote controller light receptor
ON/OFF control signal of PWM and put on dimmer on backlight
2 9
8
Operation / Condition / Compatibility
Q Q
3 6 7 1 3 1 5
Operation / Condition / Compatibility
co
.
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9