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KDC-MP925/W8027
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No.
Pin Name
18
TEST
19
DIAG
20
MUTE
21
PRE MUTER
22
PRE MUTEL
23
BU DET
24
ACC DET
25
FOCUS
26
EXT AMP CONT
27
DIMMER
28
ANT CONT(TYPE2) I/O
29
P ON
30
ILL ON
31
RESET
32,33
XT1/XT2
34
REGC
35,36
X2/X1
37
VSS
38
VDD
39
CLKOUT
40
LX REQ M
41
LX MUTE
42
LX CON
43
LX RST
44
CD MECHA+B
45,46
TYPE0/TYPE1
47,48
IC2 TYPE0/TYPE1
49
PAN5V
50
E2P5V
51
DSI
52
MC REQ
53
PAN RST
54
WOW MODE3
55
DVDD
56
DVSS
57
SC CON
58
M RST
59
M STOP
60
CD SW3
61
LO/EJ
6
I/O
-
NC (GND)
I
Over voltage/Over current detection terminal (Normal : H, Bad condition : L)
O
MUTE output terminal (ON : OPEN, OFF : L)
O
PREOUT (Rch) muting control terminal
O
PREOUT (Lch) muting control terminal
I
Momentary power dropped detection terminal (No Backup, Momentary power dropped : H, Backup : L)
I
ACC detection terminal (With ACC : L, Without ACC : H)
I/O
WOW/FOCUS control terminal (FOCUS HI : H, FOCUS LOW : L)
O
External amplifier control terminal
I
Small lamp detection terminal (ON : L, OFF : H)
Antenna control/Destination select terminal (TUNER ON : H)
I/O
SW14V, SW5V control terminal (POWER ON : H, POWER OFF : Hi-Z)
I/O
FL, illumination control terminal (ON : H, OFF : Hi-Z)
I
Reset input terminal
-
Sub clock (32.768KHz)
-
Connect to 1 F capacitor
-
Main clock (20MHz)
-
GND
-
AVR 5V
-
NC
O
Communication request to external slave unit (Request : L)
I
Mute request from external slave unit (MUTE : H).
O
External slave unit (ON : H, OFF : L)
O
Reset output to external slave unit (Normal : L, After system reset : H 400ms or more and then L)
O
CD4.7V output terminal (CD : H, Except CD source : L)
I
Destination select terminal
I
IC2 destination select terminal
O
Panel 5V control terminal (ON : H, Momentary power dropped : Hi-Z)
I/O
E2PROM, D/A converter power supply control terminal (ON : L, OFF : Hi-Z)
I/O
DSI control (ON : L, OFF : Hi-Z)
O
Communication request to panel microprocessor
O
Reset output to panel microprocessor (Normal : H, Reset, Momentary power dropped : L)
O
WOW control terminal
-
AVR 5V
-
GND
O
Panel microprocessor control terminal (POWER OFF, ACC OFF : L)
O
Reset output to CD mechanism (Normal : H, Reset : L)
O
Stop request to CD mechanism (STOP : L, CD : H)
I
CD DOWN SW detection terminal (CD disc chucking : H)
I/O
CD mechanism loading/ eject selector (STOP, Brake : Hi-Z, LOADING : L, EJECT : H)
Description / Processing Operation
Fig
1
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