Kenwood FZDA07ELEF2 Service Manual page 9

Ref. No. Application / Function
Q109 Digital transistor for FM diversity IC main antenna fi xture Fix the main antenna when the µ-com TUN_DIVER is Hi
Q301,302 DC offset detection transistor
Q303 DC offset temperature compensation transistor
Q304,305 Digital transistor for PWIC standby control
Q306 Digital transistor for PWIC mute control
Q307 Transistor to control EVOL output mute
Q308 Transistor to control EVOL output mute
Digital transistor to drive the center speaker /
Q309
subwoofer mute
Q310 Transistor to mute the center speaker output
Q311 Transistor to mute the subwoofer output
Q312,313 Digital transistor to drive the subwoofer mute
Digital transistor to drive the center speaker /
Q314
subwoofer mute
Q315 Transistor for CODEC (ADC input) mute control
Q316 Transistor for PWIC mute control
Q317 Digital transistor for PWIC mute control
Q318 Digital transistor for PWIC mute control
Q319 Digital transistor for NAVI audio mute control
Q320,321 Digital transistor to drive the center mute
Q500 Digital transistor to detect the CODEC (DIR section) error On when DIR error
Q501,502 Transistor for CODEC (ADC input) mute
Q503 Transistor for CODEC (ADC input) mute control
Q601 Transistor for reverse detection reverse buffer
Q602 Digital transistor for Sie-BUS communication request
Digital transistor for Sie-BUS communication
Q603
termination request
Q604 Digital transistor for Sie-BUS communication request
Digital transistor for Sie-BUS communication
Q605
termination request
Q606 Digital transistor for BUDET logic reverse
Q607 Digital transistor for Sie-BUS reset communication drive ON (output H) when reset
Q901 Digital transistor for subwoofer control switch control
Q902 Transistor for subwoofer control switch
COMPONENTS DESCRIPTION
Detect DC offset in SP output line
Offset the fl uctuation of output voltage from the detection circuit caused by
temperature characteristics of Q301 and Q302
On when the standby cancel is requested from the µ-com
On when the mute cancel is requested from the µ-com
ON when the mute is requested from the Sie-BUS
On when the mute is requested from the µ-com
On when the mute is requested from Momentary power down, Reset,
Mute request from Sie-BUS or DIR error
On (Mute is activated) when the mute is requested from Momentary
power down, Reset, Mute request from Sie-BUS, DIR error, or µ-com
CENTER_MUTE_H
On (Mute is activated) when the mute is requested from Momentary
power down, Reset, Mute request from Sie-BUS, DIR error, or the µ-com
SUBW_MUTE_H
On when the mute is requested from the µ-com
ON when the mute is requested from Momentary power down or Reset
ON when the µ-com ADC_MUTE_H
ON (hard mute) when the mute is requested from Momentary power down
or Reset
ON when the mute is requested from Momentary power down or Reset
On when the mute cancel is requested from the µ-com
ON in other case than NAVI interrupt
On when the mute is requested from the µ-com
ON (Mute is activated) when the µ-com ADC_MUTE_H
ON when the µ-com ADC_MUTE_H
Detect the reverse and reverse-output 3.3V
ON when the communication is requested from this unit to the vehicle
(Unit → Vehicle)
ON when the communication termination is requested from this unit to the
vehicle (Unit → Vehicle)
On when communication is requested from vehicle to this unit (Vehicle → Unit)
On when communication termination is requested from vehicle to this unit
(Vehicle → Unit)
OFF (output L) when momentary power down
ON when the µ-com SUB_CNT output H
ON when the µ-com SUB_CNT output H
FZDA07ELEF2/EREF2/MRHF2
Operation / Condition / Compatibility
9