7
FZDA07ELEF2/EREF2/MRHF2
COMPONENTS DESCRIPTION
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POWER SUPPLY UNIT (X00-4100-00)
Ref. No.
Application / Function
Operation / Condition / Compatibility
Q31
Power supply for illumination LED
Stabilizes illumination LED voltage (8.1V) and supplies required current.
Q41
Power supply for IGN5V
Stabilizes IGN5V voltage (5.1V) and supplies required current.
Q51
Step-down DC/DC switching
Converts voltage by switching.
Q53
Power supply for VFD fi lament
Stabilizes VFD fi lament voltage (2.9V) and supplies required current.
Q54
Power supply for VFD fi lament
Confi gures Darlington with Q53.
Q55
Power supply SW for VFD fi lament
ON/OFF fi lament power supply by µ-com FL_FIL_ON signal.
(ON with µ-com L output)
Q61
Power supply for DC/DC converter
Stabilizes DC/DC input voltage (9.5V) and supplies required current.
Q62
Power supply for DC/DC converter
Confi gures Darlington with Q61.
Q71
Step-up DC/DC timing control
Controls step-up DC/DC switching.
Q72
Step-up DC/DC switching
Converts voltage by switching.
Q73
Step-up DC/DC output voltage switching
Detects output voltage and controls switching timing.
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TUNER UNIT (X05-6150-62)
Ref. No.
Application / Function
Operation / Condition / Compatibility
Q1,2
TILT Power supply SW
ON/OFF of TILT power supply
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SYNTHESIZER UNIT (X14-987x-xx)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
Bu3.3V power supply IC
Input: BU 8V, Output when +B on
IC2
Analog 5V power supply IC for CODEC
Input: +B, Output when A_PON is H
IC3
3.3V power supply IC for CODEC
Input: Analog 5V for CODEC, Output when A_PON is H
IC4
8V power supply IC for radio
Input: +B, Output when A_PON is H
IC5
8V power supply IC for audio
Input: +B, Output when A_PON is H
IC6
1.25V power supply IC for DSP
Input: N_D 3.3V, Output when N_D 3.3V is being applied
IC7
3.3V power supply IC for DSP
Input: N_D 5V, Output when N_D 5V is being applied
IC10
RDS demodulation IC
Demodulation of RDS signal
IC11
FM diversity IC
Radio antenna MAIN/SUB switching
IC31
4-input audio switch
Switching between FM, AM and Analog TV
IC32
Midpoint potential output amplifi er for audio
Midpoint potential (8V and 3.3V) output for sound quality
IC34
Audio control IC
Selector, BASS/MID/TRE, Mute, Electric volume
IC35
Adding circuit for NAVI audio signal
Mix NAVI audio signal in the front L/R ch
IC36
Power amplifi er IC
4-channel BTL amplifi er integrated power IC (Gain=26dB)
IC37
DAC output ODD circuit (For front channel)
Convert CODEC balance output to the single end output (Second order LPF)
IC38
DAC output Low Pass Filter (For rear channel)
Second order LPF
IC39
DAC output Low Pass Filter (For center/SW)
Second order LPF
IC40
For SUBW audio signal balance transfer
SUBW signal single end input
→
Balance output conversion
IC52
DSP
Acoustic fi eld control
IC55
CODEC
Combination IC for DIR, ADC (2ch), and DAC (8ch)
IC62
µ-com IC for audio
System control of audio board
IC63
Reset IC
System reset detection (2.9V)