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GX-201KEF2/LEF2/REF2/SEF2
4
●
SYNTHESIZER UNIT (X14-694x-xx)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
Cassette mechanism sub-motor IC
Cassette sub-motor power supply
IC11
FM diversity IC
FM diversity switching (Only for GX-201KEF2)
IC12
AM noise canceller IC
AM noise canceller
IC13
2-piece ope-amp
RDS noise amp (Only for GX-201LEF2/REF2)
IC14
RDS demodulation IC
RDS demodulation (Only for GX-201LEF2/REF2)
IC21
Ope-amp with switch
CD/Cassette switching
IC22
Electronic volume
BASS/MID/TRE, MPX, Mute, Electronic volume
IC23
Ope-amp with switch
Audio/NAVI switching
IC24
2-piece ope-amp
CD isolation amp, LPF
IC31~34
4-piece ope-amp
FIX-EQ
IC35
2-piece ope-amp
1/2 VCC output
IC41
Power amp
4ch power amp
IC81
System
µ
-com
System control
IC82
Reset IC
System reset detection
IC83
I2C BUS IC
F-BUS communication
IC84
2-piece NOR circuit
For hard muting
IC85
EEPROM
Bug counter-measure
IC86,87
Inverter circuit
F-BUS control
Q1,2
Cassette mechanism main motor power supply switch
For cassette mechanism main motor
Q101
Diversity switch
When turned ON, turns diversity OFF (Only for GX-201KEF2)
Q102,103
FM power supply switch
When FM, 8V output
Q104,105
AM power supply switch
When AM, 8V output
Q106
IF count detection
When detecting IF count, Lo output
RDS data buffer output (Only for GX-201LEF2/REF2)
S-meter voltage output
Noise detection constant switching (Only for GX-201LEF2/REF2)
Noise detection output buffer (Only for GX-201LEF2/REF2)
For muting within electronic volume
For NAVI muting at interruption
For SVR discharging
For SVR discharging at over voltage
Q601,602
Audio DC/DC power supply switch
For DC/DC audio
Q604,605
Heater DC/DC power supply switch
For DC/DC heater
Q606,607
DC/DC control switch
For switching internal frequency
Q650
Audio DC/DC power supply switch
For DC/DC audio
Q651
Heater DC/DC power supply switch
For DC/DC heater
Q801
Buzzer switch
For buzzer
COMPONENTS DESCRIPTION
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TEL 13942296513 QQ 376315150 892498299