KRC-597/597Y
5
Ref. No.
Application / Function
Operation / Condition / Compatibility
Q4
SW 5V
ON when the base is "L".
Q5
Power-Antenna
"H" when P-ANT output is short-circuit (P.ANT OFF).
Detection
"L" when FM/AM signal does not exist.
Q6
P-CON Detection
"H" when P-CON output is short-circuit.
Q51
Main Motor SW q
Outputs 14V when the base is "L".
Q52
Main Motor SW w
Q51 turns ON when the base is "H".
Q53
Sub Motor AVR
Output 3.6V when the base of Q4 is "L".
Q54
MSTC SW
ON when the base is "H".
Q101
Composite signal buffer
Q151
DSI Driver
DSI lights when the base is "L". DSI turns off when the base is "H". DSI turns on and off when
panel is taken off.
Q152
Panel 5V SW
When the panel is attached, the base goes "L", turning the Tr ON to supply 5V to the panel.
When panel is taken off, panel 5Vcut off.
Q201
Noise buffer
Q350
Pre Mute SW
Drives the Pre Mute sw (Q351~354) when the base is "L".
Q351
Pre Mute SW
Mutes the Rear Lch when the base is "H".
Q352
Pre Mute SW
Mutes the Rear Rch when the base is "H".
SWITCH UNIT (X16-2502-70)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
LCD Driver
Drives LCD
IC2
Remote Control IC
Controls the unit
Q1,4
REMO ON SW
The power supply of IC2 is turned on when base level goes "L".
Q2
Key Illumination SW (Green)
Lights Green key-illumination when base level goes "H"
Q3
Key Illumination SW (Red)
Lights Red key-illumination when base level goes "H"
COMPONENTS DESCRIPTION
