KDC-MP925/W8027
3
●
SUB CIRCUIT UNIT (X16-2080-10)
Ref No.
Application / Functions
Operation / Condition / Compatibility
IC1
E2PROM
E2PROM for security
●
DISPLAY UNIT (X16-2530-11)
Ref No.
Application / Functions
Operation / Condition / Compatibility
IC1
Panel microprocessor
Panel control microprocessor
IC2
ROM IC
Graphic ROM
IC4
AVR
For 3.3V power supply
IC5
AVR
For 2.5V power supply
IC6
Buffer IC
Level shift buffer IC (5V
→
3.3V)
IC7
Buffer IC
Level shift buffer IC (3.3V
→
5V)
IC8
Remote control IC
For Remote control sensor
IC9
Logic IC
Control for FL contrast
IC10
Analog IC
Spectrum analyzer IC
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 (X32-5540-00)
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
IC6
AVR
BU3.3V AVR
IC7
AVR
BU2.5V AVR
IC8
Selector IC
Serial audio data selector
COMPONENTS DESCRIPTION