KDC-X879
4
Ref No.
Application / Functions
Operation / Condition / Compatibility
Q1
3.3V Regulator
While PAN5V is applied when 3.3V regulator output is +3.3V
Q2
2.5V Regulator
While PAN5V is applied when 2.5V regulator output is +2.5V
Q3,4
FL +B SW
FL +B (VDD1) is turned on when Q3 base level goes H
Q5
3.3V SW
SW3.3V is turned on when Q5 base level goes L
Q6,200
FL 3.3V SW
FL +3.3V (VDD1) is turned on when Q200 base level goes H
Q7,8
Remote control ON SW
The power supply of IC8, 10 is turned on when Q10 base level goes H
Q9
FL BLK SW
VFD is turned on when Q9 base level goes H
Q11
Red LED SW
Red LED is turned on when Q11 base level goes H
●
SWITCH UNIT (X16-2560-10)
Ref No.
Application / Functions
Operation / Condition / Compatibility
Q1
DSI LED SW
DSI LED blinks when Q1 base level goes H/L
Q2
KEY Illumination SW (Green)
KEY Illumination SW “ON” when the Q2 base level goes H
Q3
KEY Illumination SW (Red)
KEY Illumination SW “ON” when the Q3 base level goes H
Q4
KEY Illumination SW (Blue)
KEY Illumination SW “ON” when the Q4 base level goes H
●
CD PLAYER UNIT (X32-5590-00)
Ref No.
Application / Functions
Operation / Condition / Compatibility
IC1
Mechanism control microprocessor
-
IC2
DSP
CD signal processor, RF amp, Servo control
IC3
Decoder IC
MP3/WMA decoder
IC4
BTL driver
Focus, Tracking coil, Feed and Spindle motor driver IC
IC5
AVR
SW3.3V AVR
IC10
Audio DAC
-
IC13
LPF
Audio LPF
IC14
AVR
A 5.0V AVR
IC15
AVR
BU3.3V & BU2.5V AVR
Q1,4
Level shift FET
Level shift (3.3V - 5.0V)
Q3,5
Level shift TR
Level shift (3.3V - 5.0V)
Q6
Level shift TR
Level shift (3.3V - 5.0V)
Q7
Level shift TR
Level shift (3.3V - 5.0V)
Q8,11,12
APC
Auto power control & A 5V constant current circuit
Q9,10
Switching TR
Sub beam delay control switch
●
ELECTRIC UNIT (X34-3030-11)
Ref No.
Application / Functions
Operation / Condition / Compatibility
IC1
System control IC
System control microprocessor
IC2
E-VOL & tuner IC
E-VOL. FM/AM tuner & stereo decoder
IC3
Power supply IC
For A8V AVR
IC4
Audio power IC
Audio power amplifier
COMPONENTS DESCRIPTION