Switch Unit (X34-3142-70) - Kenwood GX806EF2 Service Manual

GX806EF2
Ref. No.
Q604 DC/DC switching
Q605 Filament power supply switch
Q606 Filament power supply switch
Q607 DC/DC power supply switch
Q608 Filament power supply switch
Q609 DC/DC power supply switch
Q610 DC/DC power supply switch
Q612 DC/DC power supply switch
Q653 BU5V power supply switch
Q654 BU5V power supply switch
Q691 LAMP power supply switch
Q694 LAMP power supply switch
Q751 P-ANT control switch
Q752,753 P-ANT control switch
Q754 P-ANT short-circuit protection
Q771 ACC detection
Q772 BU detection
Q773 BU over voltage detection switch
Q801 P-ON5V power supply switch
Q802 Sie-BUS mute output
Q803 Illumi detection switch
Q804 Hard reset switch
Q805 Sie-BUS reset output switch
Q807 DC/DC power supply switch

Switch Unit (X34-3142-70)

Ref. No.
IC1 Display control microcomputer
Q1 P-ON5V power supply switch
Q2 Filament power supply switch
4
COMPONENTS DESCRIPTION
Application / Function
Application / Function
Operation / Condition / Compatibility
DC/DC voltage detection
Filament power supply driver
Filament power supply darlington
DC/DC driver
For filament power supply
DC/DC driver
For DC/DC detection
DC/DC darlington
BU5V driver
BU5V darlington
ILL detection for LAMP
LAMP driver
When ACC_ON, Hi output
When ACC_ON, BU electric potential output
P-ANT short-circuit protection
When ACC ON, Lo output
When BU ON, Lo output
BU over voltage detection
For P-ON5V
When mute ON, Hi output
When illumi detected, Lo output
When HARD_RESET ON, Lo output
When Sie-BUS reset, Hi output
For DC/DC detection
Operation / Condition / Compatibility
VFD control, Key loading
For P-ON 5V
For filament