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● ELECTRIC UNIT (X34-59xx-xx)
Ref. No.
Application / Function
IC1
System µ-COM
IC2,3
E-VOL
IC4
Power Supply IC
IC6
Power IC
IC7
RDS IC
IC8
Reset IC
IC9
Analog SW
Q2
Servo+B AVR
Q3
Control SW for Servo+B
Q7
VFD+B SW
Q8
VFD+B AVR
Q9
Control SW for VFD+B
Q11
14V SW
Q12
14V SW
Q13
Control SW for IC4
Q14
Control SW for IC4
Q101
ACC DET
Q102
Serge DET
Q103
BU DET
Q104,105
Mute Control
Q301
Panel 5V SW
Q302
DSI ILLUMI SW
Q401
IC9 Control SW
Q402
Quick Charge Voltage SW
Q701~704
Pre-out Mute SW
Q705
Mute Driver for Pre-out
Q801
Electric Discharge Circuit for C805 (SVR) ON when the base goes Lo.
Q901
DC Offset DET
Q902,903
DC Offset DET SW
COMPONENTS DESCRIPTION
Controls FM/AM tuner, the changer, CD mechanism, panel, volume and tone.
Controls the source, volume and tone.
Outputs 5Vx2, 8.1Vx2, 10.2V, P-CON and P-ANT.
Amplifi es the front L/R and the rear L/R to 50W or 45W maximum.
RDS decoder.
Lo when detection voltage goes below 3.6V.
Multiplex triple 2-channel analog SW.
When Q3's base goes Hi, Servo+B AVR outputs 7.5V.
ON when the base goes Hi.
ON when the base goes Hi.
When Q9's base goes Hi, Servo+B AVR outputs 10.5V.
ON when the base goes Hi.
ON when the base goes Hi.
ON when the base goes Lo.
ON when the base goes Hi.
ON when the base goes Lo.
ON when the base goes Hi during ACC is applied.
When the base goes Hi, surge voltage is detected.
ON when the base goes Hi during BU is applied.
ON when the base goes Hi.
ON when the base goes Lo.
ON when the base goes Hi.
Switches to AUX when the base goes Hi, and switches to LX-BUS (CD-CH) when the base goes Lo.
Charges voltage quickly when the base goes Hi.
When a base of the 4 transistors goes Hi, pre-out is muted.
ON when the base goes Lo.
ON when the base goes Hi after Q902's and Q903's outputs are separated.
ON when the bases go Lo after IC6's SP-OUTs (DC) are separated.
X34-59xx-xx
Operation / Condition / Compatibility
3
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