4
GX204KEF2/KHF2/LEF2
GX204REF2/SEF2
Ref. No.
Application / Function
Operation / Condition / Compatibility
Q141
Noise amplifier
Switches constant when noise is detected.
Q142
Noise amplifier
Noise detection output buffer
Q143
Noise amplifier
Switches constant when noise is detected.
Q221
Mute switch
Mute within the electric volume.
Q222
Switch within the electric volume
For switching FM/AM within the electric volume.
Q223,224
Mute switch
SRS-WOW mute
Q301
Midpoint circuit discharge switch
Discharges the midpoint voltage when ACC_OFF.
Q303
Midpoint circuit discharge switch
Detects P-ON for discharging midpoint voltage when ACC_OFF.
Q304
Midpoint circuit discharge switch
Discharges the midpoint voltage when ACC_OFF.
Q331
Servo 8V power supply switch
Detects P-ON for servo 8V.
Q332
Servo 8V power supply switch
Driver for servo 8V.
Q333
Servo 8V power supply switch
Darlington for servo 8V.
Q351
Power supply switch for P-ANT
Detects Acc for P-ANT.
Q352
Power supply switch for P-ANT
Driver for P-ANT.
Q353
Power supply switch for P-ANT
Darlington for P-ANT.
Q354
P-ANT short detection switch
Detects P-ANT short.
Q371~373
DC offset detection switch
Detects DC offset voltage.
Q391
Audio8V power supply switch
Detects P-ON for Audio8V.
Q392
Audio8V power supply switch
Driver for Audio8V.
Q521
Current buffer for SYS_ON
Outputs Hi when SYS_ON is Lo.
Q522
Current buffer for SYS_OFF
Outputs Hi when SYS_OFF is Lo.
Q523
Bus_OFF detection
Inputs Hi when Sie-Bus system is OFF.
Q524
Bus_ON detection
Inputs Hi when Sie-Bus system is ON.
Q525
Hardware reset switch
Outputs Lo when hardware reset is detected.
Q526
Sie-Bus reset detection switch
Outputs Hi when Sie-Bus reset is detected.
Q551
AUX detection switch
Outputs Hi when AUX is detected.
Power supply switch for DC/DC45V
Detects DC/DC switch.
Power supply switch for DC/DC45V
Driver for DC/DC45V power supply.
Power supply switch for DC/DC45V
Darlington for DC/DC45V power supply.
Switching for DC/DC45V power supply
For DC/DC45V power supply.
Switch for filament power supply
Detects DC/DC switch.
Switch for filament power supply
Driver for filament power supply.
Switch for filament power supply
Darlington for filament power supply.
Power supply switch for DC/DC45V
Detects DC/DC switch.
Q625
Power supply switch for DC/DC45V
Driver for DC/DC45V power supply.
Q626
Switch for filament power supply
Driver for filament power supply.
Q651
Switch for Bu5V power supply
Driver for Bu5V power supply.
Q652
Switch for Bu5V power supply
Darlington for Bu5V power supply.
Q671
Switch for D5V power supply
Detects P-ON for D5V power supply.
Q672
Switch for D5V power supply
Outputs Lo when AM.
Q673
Switch for D5V power supply
Supplies D5V power supply when AM.
COMPONENTS DESCRIPTION
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