Pioneer Lexus RX300 Servis Kılavuzu - Sayfa 39

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7.3 EXPLANATION

7.3.1 OPERATIONAL FLOW CHART

Reset Start---OFF ---Power ON

| Hard ware reset cancel

<<JUDGMENT>>

Test program check(Unit checker)

- TESTIN HI/LOW input

Unit checker program

ASENS HI input

BSENS HI input

- Electronic volume refresh (Normal)

Electronic VR IF

START

TESTIN LOW input

TESTIN HI input

<<JUDGMENT>>

Back up, ACC confirmation

- ASENS/BSENS

Error(Communication error)

| Forcibly OFF

<<JUDGMENT>>

Bus communication Normal/Error

VDT

VCK1

VST

GM-8706ZT,8706ZT-91,8306ZT,8306ZT-91

ASENS HI input

BSENS HI input

ASENS LOW input and BSENS LOW input

• ACC/Back up ON

Main loop

Normal(Main unit communication normal)

<<JUDGMENT>>

System ON/OFF

OFF

- OFF status

=System ON waiting

• Power OFF(SYSPW)

• Mute ON(MUTE)

<<JUDGMENT>>

ACC/Back up ON/OFF

ACC ON/Back up ON

Main loop

About 500mS interval

ASENS LOW input

and

BSENS LOW input

Micon oscillation stop

(Electronic power save)

- ON status

=System OFF waiting

• Power ON(SYSPW)

• Mute ON(MUTE)

• BEEP output available