Kenwood DDX7015 Service Manual page 9

Ref.No. Application/Function
Q22 P-CONT
Q23 P-ANT switch
Q24 P-CONT
Q25 P-CONT
Q26 BU detection switch
Q27 EXT-AMP switch
Q100 S-MUTE reverse switch
Q200 AM power supply switch
Q201 AM power supply switch
Q300 NOISE switch
Q301 S-MUTE switch
Q460 TV resetting reverse switch
Voltage conversion audio
Q551~554
selector switch
Q600,601 Muting sub-woofer
Q602,604~606 Muting pre-out
Q603 Muting pre-out
Q607 Muting sub-woofer
Q608,610 Muting AVOUT
Q609 Muting AVOUT
Q700 IC700, 701 switching switch
Q702 Muting GSM left audio
Q703 Muting GSM left audio
Q704 FAN5V
For J701
Q705
(optical output connector)
Q706 Muting GSM right audio
Q707 Muting GSM right audio
Q712 Muting BUS
Q713 Muting BUS
Q904~906 Noise canceller
VIDEO UNIT (X35-4332-70)
Ref.No. Application/Function
IC1 Inverter control IC
IC101 DC/DC converter
IC203 VCOM amplifier
IC301 Timing controller
IC302 AND
IC303 PLL LPF
COMPONENTS DESCRIPTION
Turned ON when Q21 is turned ON.
Turned ON when Q20 is turned ON.
Turned ON when Q25 is turned ON.
Turned ON when BU14V is supplied. Turned OFF when Q22 is turned ON.
Turned ON when BU is detected.
Turned ON when EXT-CONT terminal is L.
Turned ON when momentary power down, when reset, and when S-MUTE is turned ON.
Turned ON when TUNER is selected.
Turned ON when Q200 is turned ON.
Turned ON when IC301QUAL terminal is Hi.
Turned ON when Q100 is turned ON.
Reverses when reset and outputs Hi.
Outputs by converting 5V→8V.
Turned ON when Q607 is turned ON.
Turned ON when Q603 is turned ON.
Turned ON when momentary power down, when reset, and when MUTE_PRE is turned ON.
Turned ON when momentary power down, when reset, and when MUTE_SW is turned ON.
Turned ON when Q609 is turned ON.
Turned ON when momentary power down, when reset, and when MUTE_AVOUT is turned ON.
Controlled by ES_DSP_SW.
Turned ON when momentary power down, when reset, and when MUTE_LEFT is turned ON.
Q702 is turned ON.
MZ_SYS_ON is turned ON. Turned OFF when MZ_SYS_OFF is turned ON.
Turned ON/OFF by 05 signal.
Turned ON when Q707 is turned ON.
Turned ON when momentary power down, when reset, and when MUTE_RIGHT is turned ON.
Turned ON when BUS_MUTE is turned ON.
Turned ON when Q712 is turned ON.
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Controlling and driving inverter circuit for backlight.
±12V power supply for VCOM amplifier, -12.0V/+18.5V LCD power supply.
VCOM signal amplifier.
LCD module control.
V. SYNC delay buffer.
PLL control LPF (VT voltage control).
DDX7015/7025/7035
DDX7045/7065
Operation/Condition/Compatibility
Operation/Condition/Compatibility
9